xinhai mining and construction

mine design, mine design construction plan, mine design qualification, yantai xinhai mine design institute - xinhai

mine design, mine design construction plan, mine design qualification, yantai xinhai mine design institute - xinhai

The key of mine design is all must be established on the basis of detailed investigation, and therefore Xinhai Mine Design Institute will firstly take a comprehensive field study to the mine of clients including the crude ore for dressing plant, site, water, electricity, traffic, geography, etc..

In the feasibility study stage, first, Mine Design Institute and the client need to sign the entrustment agreement. After the two sides reaching an agreement, Xinhai Mine Design Institute starts to establish a working group for work including: planning, investigation, data collection, planning and optimization, project evaluation, "report" writing, and exchanging views with commissioned units to form a formal report.

In all the work of the working group to carry out, investigation, data collection and plan optimization is the most important basis for selecting plant construction scheme. For these important parts, working group requires different professional division and cooperation, including:

1, Geological specialty Collecting "Geological General Survey and Design", "Geological Survey (detailed survey) Report" or "Reserve Verification Report" and the approved documents of qualified geological prospecting departments

Mining specialty Information collection: (1) , Opinion and requirements of clients of mine construction (2) , For new mines, collecting the existing layout maps of exploration engineering; for technical improvement mines, collecting the existing transit system information (3) , Detailed knowledge of mining area terrain and surrounding environment conditions; (4) , Design information of the preliminary design stage of mine

3, Mining machinery specialty Judging the situation of mine existing equipment or equipment quantity and specifications new mine required by collecting mine information of lifting, transportation, pressure, drainage, etc.

4, Civil engineering specialty Information collection (1) , Investigation field geomorphic condition (2) , Collecting hydrological data and "geotechnical engineering investigation report"; (3) , To know the local architectural style, structure, waterproof, thermal insulation and other building practices (4) , Investigation of material sources, transportation and price of the local building including gravel, brick, lumber, steel, cement, etc. Basing on these data, Civil Engineering Department explains the form of building construction for customers in the report, and determines the main project structure and the main construction method

5, Electric power specialty For new mine, information collection (1) , The electricity supply environment of mine (2) , Topography and geomorphology between ore area and current source (3) , The basic condition of transformer substation (4) , The requirements of local power supply department, such as power, power supply mode, the starting mode of large electrical equipment (5) , The local requirements of lightning protection and grounding (6) , The condition of external communication and local communication. For improvement and extension mine, information collection (1) , Mine power supply existing situation (2) , The general situation of transformer substation (3) , The setting situation of existing safety source (4) , Existing communication situation

6, Mineral dressing specialty Information collection for new mine: "Ore beneficiability test report", plant topographic map (1:500 1:1000), the water, electricity, tailings dam, environmental protection requirements, the construction standards, the amount of investment and building opinion of owners. Information collection for extension mine: the current project scale, ore beneficiability test report, the present production process, operating parameters, material consumption, existing specification and production capacity of equipment, general layout plans of the existing processing plant, equipment layout plans of workshop, production problems. Basing on these data, mineral dressing specialty comes up with a feasible solution for new or renovation and expansion mineral dressing plant.

In addition, the specialties needing to collecting information including general plan transportation (geographic and topographic data; social economy; weather; flood; engineering geology and hydrology geology; traffic; environmental protection), tailings (tailings information, hydrometeor), drainage, HVAC, etc.

By the data collection and the feasibility study from the various specialties, Mine Design Institute ultimately determines a feasible scheme for the plant construction, and writes the " feasibility study report " submitted to the relevant departments.

"Feasibility study report" with strict requirements on qualification, ability, experience, professional title of writer is important basis for evaluation EIA and safety unit (some projects must take soil and water conservation and land reclamation evaluation).

After "Feasibility study report" approved, Mine Design Institute starts preliminary design and comes up with the design of dressing plant construction. Design mainly involves: dressing, general layout, electric power, communication, civil engineering, environmental protection, water supply and drainage, tailings, safety and fire protection, investment estimates, economic benefit. For the improvement and extension enterprises, the preliminary design will illustrate the status, characteristics, plant, main problems, utilization of main buildings and equipment.

Xinhai Mine Design Institute has many engineers who can design different types of dressing plants (less investment, quick capital return or easy management) according to clients requirements. what's more, the design cost is lower than the national standard.

After the completion of the preliminary design, Design Institute experts will gather all content to form the detailed Preliminary design report " submitted to competent department of Mine Design Institute

When the preliminary design is approved, Mine Design Institute starts to design working drawings. Every aspect of dressing plant needs a lot of construction drawings (generally, over 100 working drawings), such as civil construction. Engineers of Xinhai Mining Institute are numerous with rich experience and drawing speed. When the working drawings completed, the designers must hand the drawings over to construction commanding officers, especially, the notes, strict regulation and important content.

Xinhai Mine Design Institute is the first mineral processing design institute, with class A design qualification of metallurgical industry, which can undertake the design business of non-ferrous metals industry construction projects and supporting engineering without scale limitation.

Xinhai Mine Design Institute provides technical support for EPC, mainly responsible for the relevant problems of mine design and mine consulting. Over the past 20 years, hundreds of Xinhai EPC are completed successfully relying on the technical support of Mine Design Institute as.

Xinhai Mine Design Institute owns over 200 professionals from various specialties including geology, mining, mineral machinery, ore dressing, smelting, civil engineering, electric power, general drawing, drainage, tailings, heating and ventilation, technical economy, budget, etc.

Mining Department is usually carried out geological exploration and survey, and provides mining method and equipment according to the opinion & requirement of clients, terrain landform and the surrounding environment of mining area.

In engineering consulting, Mining Department provides a better mining method and outline of mining equipment list according to the actual situation and their rich experience. They would estimate the investment and economic benefits of mining part. In addition, they also solve the problems of mining for clients.

In the engineering consulting, the Electric Power Department will first have a detailed understanding about power condition and plant, and then provides a general electric equipment list according to the actual situation, finally providing the cost quotation of factory power part.

Civil Engineering Department should understanding the local meteorological and seismic condition, and designs supporting facilities according to the process design of the Mineral Dressing Research Institute and plant construction site, and finally gives general quotation with consideration of materials and size of buildings.

introduction of xinhai group - xinhai

introduction of xinhai group - xinhai

Shandong Xinhai Mining Technology & Equipment Inc. was founded in 1997. Now it is a stockholding EPC+M+O service provider covering design and research, machine manufacturing, equipment procurement, management service, mine operation, mine materials procurement & management as well as industry resources integration. With two production bases, it has employed over 500 people and established offices in some countries and regions. It has served nearly 2,000 mines and completed over 500 EPC+M+O projects. Xinhai is devoting to providing worldwide clients with overall construction and operation solutions for modern, efficient and energy-saving mines.We are committed to providing optimal solutions for your mine!

Xinhai concentrates on providing the Mineral Processing EPC+M+O service, that is Research and Design - Complete Equipment Manufacturing and Procurement - Commissioning and Delivery - Mine management - Mine operation. Based on the actual situation of processing plant, Xinhai provides one-stop customized mineral processing solution for global mining corporations.

Based in China, Xinhai has an ambition to be one of the world top developers, manufacturers, service providers and engineering contractors of mining technology and mining machinery, and forge Hundred-year Xinhai.

All rivers run into sea, its greatness contains everything. Adhering to the people-oriented concept, Xinhai pays much attention to the employees' improvement. Achieve the harmonious unity between the employee value and development goals of the company.

introduction of xinhai mining - xinhai

introduction of xinhai mining - xinhai

Xinhai (Yantai) Mining Engineering Co., LTD (Xinhai Mining, for short) is a high-tech enterprise to provide the Turn-key Solution for Mining Plant; including design and research(E), equipment manufacturing and procurement(P), mine construction, installation and commissioning(C), mine management and mine operation(M+O).

The business scope covers all parts of the world. Till now, Xinhai has completed over 2000 mine design and research, equipment supply projects, including over 500 mining EPC+M+O engineering projects. The products and service covers over 90 countries and regions. Xinhai highly focuses on technology innovation, keeping the core ideology that technology makes the future. It uses technology innovation as the priority productivity to face various technical problems in mine. Xinhai believes that service is also a product, which is the most essential and important product for most mines. Xinhai Mining EPC+M+O involves all the parts. Therefore, the service for each part purchases excellence and high quality.

Xinhai Mining has the strong technical force. Mr. Zhang Yunlong, the chairman of Xinhai Mining, is the AusIMM academician and has the internationally recognized signing authority for the public report on mining technology. There are more than 200 technical personnel in Xinhai Mining, involving more than 20 majors, such as geology, surveying, mining, mining equipment, general drawing, transportation, mineral processing, smelting, machinery manufacturing, pipelines, civil engineering, water supply and drainage, tailings, electric power, automation, technical economy. Xinhai Mining focuses on the world's most cutting-edge design concept, who can provide the 3D mining design and 3D concentrator design, mine animation design, VR design and so on.

Xinhai Mining has 70000 square meters of production base, the complete modern machinery processing equipment and the advanced Solidworks 3D mechanical design and computer simulation test system, who can provide various equipment and material, including exploration, mining, hoisting, transportation, ventilation, drainage, filling, power, water, air supplying, crushing, grinding, mineral processing.

Xinhai Mining construction and mine management team consists of technologists with decades working experience in mine and engineering and mine management staff with abundant mine production and management experience. They can undertake the construction and installation for new mine, and provide technology support in management and operation aspects for mine production, and solve the problems such as inadequate production links, unsatisfactory production target, etc.

What you need is what we can do! In the future, Xinhai Mining will keep depending on the technology, talents and management, insisting on international development strategy, and devote on providing modern, high-efficiency, and energy-saving complete mine construction and operation solution for clients, and trying every effort on forging international advanced enterprise in mining industry.

All rivers run into sea, its greatness contains everything. Adhering to the people-oriented concept, Xinhai pays much attention to the employees' improvement. Achieve the harmonious unity between the employee value and development goals of the company.

Xinhai uses innovation as the motivation of development from the beginning. In over 20 years, Xinhai achieve excellent results. Currently, Xinhai passed ISO9001:2015 International Quality Management System Certification, Intellectual Property Management System Certification, EU CE Certification, and has Laboratory Accreditation Certificate of China National Accreditation Service for Conformity Assessment (CNAS), Engineering Design Qualification, self-support import and export rights, qualification for foreign contracted projects, member unit of China Mining Federation, the unit of vice chairman of the gold industry technology innovation strategic alliance filed by the Ministry of Science and Technology and other relative qualifications and certificates. Besides, Xinhai also won multiple kinds of certificates and fund supports from government and organizations, such as Provincial contract-abiding and credit-honoring enterprise and Inspection-free Enterprise awarded by Shandong Administration for Industry and Commerce and Shandong Enterprise Credit Association, Trustworthy Enterprise awarded by banks, China Patent Shandong Star Enterprise awarded by Shandong Provincial Department of Science and Technology and Shandong Provincial Intellectual Property Office, Shandong Excellent Enterprise of Industrialization And Information Integration, Shandong Intelligence Property Advantage Enterprise etc. These honors are the affirm from society and public, and also acknowledged by clients.

engineering - xinhai

engineering - xinhai

Since the risk factor of each step in mining operation is high, the requirement for safe construction process and perfection degree of management mechanism is high. Only consistently enhance management and regulate construction behavior during the process of construction, improve mine construction safety techniques and optimize the relations between safety and benefits, can we maximally ensure the economic and social benefit.

Compared with urban civilian construction project, the mine civil engineering project is a comprehensive construction project with complicated construction conditions, more connections and restraints between each system, and closely relations between construction and production. At present, many countries are weak in their corresponding civil construction. Xinhai can provide the clients who have civil engineering construction and management needs with the services as follows:

Xinhai can provide the clients with rapid assembly colorful steel structure housing construction and installation for facilities such as mine office, staff dormitory, warehouse, chemical laboratory, maintenance workshop and guard;

Since cement prices in many countries of Africa are relatively high, generally, civil engineering adopting reinforced concrete materials, such as freshwater pool, backwater pool, raw ore bin and fine ore bin, will not be appropriate to adopt cement materials. Xinhai can provide the clients with steel structuralization construction services as required;

Provide continuing technical support services after the mineral processing plant EPC is put into production. We can provide professional mineral processing engineer, mechanical engineer, electrical engineer and chemical engineer; Provide operation management services after the mineral processing plant is put into production. The specific service form mainly includes:

Xinhai has participated in the investment, operation and management of multiple mines, including 3 gold mines in Gansu China, 6 feldspar mines in Yantai China, 1 gold mine in Zimbabwe, 1 gold mine in Mongolia, and 1 iron mine in Vietnam.

mineral processing casexinhai mining malaysia 700tpd gold cil project-xinhai

mineral processing casexinhai mining malaysia 700tpd gold cil project-xinhai

Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details

Gold CIP Production Line adsorbs gold from cyaniding pulp by active carbon including 7 steps: leaching pulp preparation, cyaniding leaching, carbon adsorption, gold loaded carbon desorption, pregnant solution electrodeposit, carbon acid regeneration, leaching pulp. View details

Looking down on the land, there are small islands scattered in the white clouds and an endless ocean. Everything is beautiful as far as the eye can see. Malaysia, besides the mountain, and near the sea, is rich in mineral resources. Surrounded by mountains, a 700tpd gold CIL project in Malaysia, built by Xinhai Mining, is running in an orderly manner.

When it comes to Malaysia, many people would associate with pristine beaches, exotic islands, pristine rain forests and modern cities. In fact, Malaysia has abundant mineral resources, such as tin, iron, gold, tungsten ore.

However, the production of mineral processing equipment in Malaysia cannot meet the current demand for mineral processing, and Malaysia didnt have the corresponding mine management, mineral processing technology to achieve the construction of modern plant independently. Depending on its innovative mineral processing mode, famous brand awareness and professional mineral processing technology, Xinhai Mining became the first choice for Malaysian mining development and cooperation.

With the implementation of One Belt And One Road initiative, more and more mining people had involved in the construction of the Malaysian mining industry. This 700tpd gold CIL project was an epitome of China-Malaysia mining cooperation.

Ore properties: The metal mineral of this project was mainly pyrite. The non metallic minerals were quartz, calcite, mica. The raw ore contained 4.70g/t of gold, 4.63g/t of silver, 20.10% of iron and 20.55% of sulfur.

In 2017, Xinhai Mining officially signed 700 tpd gold CIL project contract with the project company. Xinhai Mining provided this gold project with one-stop and customized mineral processing EPC+M+O service, including mineral processing test, mine design, equipment manufacturing and purchasing, packaging, package and shipping, installation and commissioning, worker training, standard reached, mine management and mine operation.

After the determination of the ore properties, Xinhai mine research institute concluded that the raw ore of this project mainly included natural gold, pyrite, quartz, calcite, mica, etc. The raw ore contained 4.70g/t of gold, 4.63g/t of silver, 20.10% of iron and 20.55% of sulfur. The valuable elements that can be recovered was gold.

Due to the ore properties of this project was simple, it was found when the raw ore was ground (85% -200 mesh), the lime was used as the protective alkali, the sodium cyanide was added to agitation leaching, the gold leaching rate reached 93.40% if the pulp concentration was 40%, the amount of lime was 7kg/t, and the amount of sodium cyanide was 4kg/t within 24 hours of leaching.

The grinding process adopted two stages closed circuit grinding and classification, the grinding product was screened by the trash screen, the undersize self-flowed to a thickener for thickening, the thickener underflow was sent to the leaching operation through the slurry pump. After the leaching and adsorption, the gold-bearing product was obtained and then sent to the original gold extraction plant. The leaching tailings adopted press filter for dehydration, and the return water was recycled, the dry tailings were conveyed to the tailings pond for storage.

In order to provide customers with mineral processing solution timely and effectively, Xinhai mine design institute sent several technical experts to the project site for investigating ore resources, surrounding terrain, water, electricity and other conditions, helping client to collect and integrate all kinds of information resources, and providing the professional and comprehensive planning for site selection, design, construction by combining the process that suggested according to the mineral processing test and the selection of mineral processing equipment.

According to the related equipment selection requirements of Malaysia 700tpd gold mineral processing report, Xinhai mechanical design institute customized the complete set of main and auxiliary equipment, and made a series of technical improvements on the basis of the original equipment for ensuring the perfect combination between mineral processing equipment and mineral processing technology. Besides, the whole production process of this project realized the mechanical operation, some key operation or post even realized automatic control, which greatly improved the production rate, reduced the energy consumption and prolonged the stable operation.

According to the equipment size, shape, weight, moisture-proof, hoisting condition, the requirements of handling, disassembling, transshipment and field installation, Xinhai Mining packaging and shipping team adopted computer simulation for classification and package;

According to the general layout of the construction site, Xinhai Mining packaging and shipping team determined the packing of each working area, formulated the accurate unloading position, which avoided the inconvenience caused by the second handling and lifting, improved the installation efficiency;

Malaysia 700 tpd gold CIL project was a typical cross-cultural cooperation project undertook by Xinhai Mining. In the cooperation process, Xinhai Mining faced many challenges in civil construction and equipment installation, which put forward higher requirements on the project schedule management of mineral processing EPC+M+O service, personnel configuration, technical support, supply, diet, transportation and other aspects.

In the process of installation and commissioning, Xinhai Mining dispatched the experienced installation and commissioning team to the site, which fully participated in and managed the equipment installation and commissioning of the project, then provided the professional maintenance and training services. The whole team completed all the installation and debugging work of the project within one month, and passed the process debugging index in the first time, and the qualified rate of the first acceptance was 100%, which demonstrated the efficiency and professionalism of Xinhai Mining to Malaysian clients.

In terms of mine management and operation, Xinhai Mining provided the professional technical guide of civil construction, steel structural construction, tailings treatment and tailings pond engineering design.

In the civil work, Xinhai Mining actively communicated with the contractor due to the differences in the construction period and steel structure quality. After repeated confirmation, the complete construction plan was determined. In view of the problem that the two parties had a different understanding of the drawings, Xinhai Mining technicians patiently answered the questions raised by the other side for many times, and adjusted the drawings according to the site conditions.

In addition, in order to ensure the smooth operation of the mineral processing project and achieve the expected recovery rate as soon as possible, Xinhai Mining paid many return visits to this project, and provided the reliable after-sales technical support, which ensured the standard recovery rate of the mineral processing project, safe product quality and stable operation of mineral processing equipment.

This project was the first mineral processing EPC+M+O cooperation project between Xinhai Mining and the project company. The one-stop and customized Xinhai mineral processing EPC+M+O service, namely design and research- complete equipment manufacturing and procurement-commissioning and delivery management and operation, proceeded from the project condition, and helped the client to obtain ideal technical indicators and economic benefits.

In civil engineering design, Xinhai mine design institute used PDM design management system for the combined steel structure production line design. All kinds of reinforced concrete ore bin, pool, platform, equipment support, hopper and chute were designed in combined steel structure, which realized the flexible assembly of equipment on the scene, reduced the workload of civil engineering and construction time, and saved the infrastructure investment.

Xinhai Mining had officially put the project into production within six months. The initial designed processing capacity was 600tpd, while the actual processing capacity was 700tpd. The expected recovery rate was 93%, but the actual recovery rate was up to 95%.

The production of Malaysia 700tpd gold CIL project marked the successful launch of the first All-slime cyanidation plant in Kelantan. Mining Magazine, an internationally renowned Magazine, had reported the project and gave full credit for Xinhai mineral processing EPC+M+O service.

Malaysia 700tpd gold CIL project achieved the standard production within a short period, which not only fully reflected Xinhais strong mineral processing strength, professional and customized solution and thoughtful customer service, but also laid a solid foundation for further cooperation between the two sides. After the project successfully put into production, Xinhai Mining signed the mining development strategic partnership agreement with the project company, and served a 700tpd lead and zinc ore project in Malaysia. The two sides jointly led the development of southeast Asia mineral processing industry to a new peak, Utusan Borneo, Sin Chew Daily and other media had carried in-depth reports on this strategic cooperation.

With the One Belt And One Road initiative, Xinhai Mining has successfully served a number of countries along the route, whose mineral processing service has spread to more than 90 countries and regions around the world. In the future, Xinhai Mining will continue to promote its own innovative development, improve the mineral processing technology and equipment, deepen its own market internationalization strategy, and effectively provide customers with more perfect and more professional mineral processing EPC+M+O service!

xinhai tanzania 1200tpd gold mineral processing plant, shandong xinhai

xinhai tanzania 1200tpd gold mineral processing plant, shandong xinhai

Tanzania 1200tpd gold mineral processing project has finished the installation and commissioning part recently, now has been put into operation, during the installation and commissioning process, Xinhai employees carry forward the work style of working hard and develop the rigorous attitude to guarantee high quality finishment of the work in short period. The production line has got anticipated recovery rate, Xinhai employees got highly appreciated from the customer.

Xinhai Tanzania 1200tpd gold mineral processing project is located in Africa,thus has big differences from domestic one in project management, construction technology,resource supply and work coordination.

Pictured above is the grinding and thickening panorama of the Xinhai Tanzania 1200tpd gold mineral process plant.Pictured right is a group photo from project site of Xinhai employees with the customer.

Mainly includes thickening,cyaninding and desorption electrosis parts.Main work of the installation and commissioning includes: 1.Install the equipment such as thickening, cyaniding, desorption electrosis system.2.Install the pipelines and operation platforms (exclude tailings pipelines of outdoors);3.The electric power, water supply and drainage.(exclude water supply from water source)

This project applys all slime cyanidation to leach gold,the ores mainly are sulfide ore and oxidized ore.Oxidized ore has grade of 2.4g/t,gold is the only valuable element that can be recovered and the all slime cyanidation get 93.75% recovery rate of gold; Sulfide ore has grade of 10.7g/t,gold is the only valuable element that can be recovered and the all slime cyanidation get 91.58% recovery rate of gold;

Above is part of the desorption electrolysis system of the project,which is the core equipment of the all slime cyanidation. Pictured left is a panorama of desorption electrolysis system.Anions that can be easily adsorbed by activated carbon have been put into the desorption system to displace Au(CN)2- for the desorption of gold.Rich liquid from the desorption of loaded carbon can be recovered by ionization method to get solid gold.

Civil construction mainly includes factory building and equipment foundation construction.after the foundation construction work of thickening and leaching tank, the installation and construction of pipeline and electric instrument also should be finished.

Field personnel of Xinhai in the project should pay more attention to sunscreen and mosquito bites, thus they has to wrap themselves in the unbearably hot day.

Subsection hoisting leaching tank. Equipment like leaching tank and thickener belongs to thin-walled tank,to protect the deformation of non-standard equipment,the larger-diameter tanks will manufacture in China,and install at the project site.For smaller-diameter tanks,professional hangers will be used in the hoisting work.

mine design, mine design construction plan, mine design qualification, xinhai mine design institute - xinhai

mine design, mine design construction plan, mine design qualification, xinhai mine design institute - xinhai

The key to mine design is all must be established on the basis of detailed investigation, and therefore Xinhai Mine Design Institute will firstly take a comprehensive field study to the mine of clients including the crude ore for dressing plant, site, water, electricity, traffic, geography, etc.

Xinhai Design Institute has Grade B design qualification in metallurgical industry and has a talent pipeline of 80 specialists in 16 areas, including geology, mining, mining machine, shaft construction, mineral processing, civil engineering, electricity, water supply and drainage, heating, ventilation, tailings, pipeline, automation, steel structure, technical economy and cost estimation.Xinhai also provides mine engineering design and consultancy for ferrous and nonferrous metal mines, gold mines, nonmetal mines and chemical mines with annual capacities ranging from hundreds of tons to millions of tons.

With professional SolidWorks 3D design software and PDM design management system, Xinhai can provide mobile mineral processing plant design; 3D mineral processing plant design; production line design of modular steel structure processing plant, that is, to design and manufacture the ore bin, water pond, platform, equipment support, hopper, chute and other reinforced concrete components into modular steel structure type. It is very flexible in installation at the mine site, which can reduce the amount of civil work, shorten the construction time, decrease the investment, and be easy to disassemble and move.

Xinhai can provide the design in accordance with not only Chinese standards, but also Australian JORC standard, Valmin specification and Canada NI43-101 standard. Xinhai has established strategic partnerships with mining design consulting companies in Australia and Canada, with complementary advantages. For the E part in EPC project, the scheme is determined by both parties, the specific work is undertaken by Xinhai, and the design review and qualification are handled by Xinhai partners in Australia or Canada. For some countries and regions in Africa, South America, Central Asia and Southeast Asia, Xinhai can conduct the design according to the standards and codes of China, Australia, Canada and local countries.

No mines in the world are the same, and Xinhai will always provide customized design scheme for your mine.Comprehensive site investigation: the raw ore, ore supply, plant site, water and electricity, transportation, geography, etc.Feasibility plan: 14 departments of Mine Design and Research Institute cooperate with each other to collect the data, study the feasibility, determine the feasibility plan and compose the Feasibility Study Report.Construction drawings of plant: after the preliminary design of some construction drawings is approved, Mine Design and Research Institute will begin to design the construction drawings according to design scheme, and at the same time, it will introduce the design and hand over the precautions, strict specifications, important contents and other details to construction commanders at the construction site.

In the feasibility study stage, first, Mine Design Institute and the client need to sign the entrustment agreement. After the two sides reaching an agreement, Xinhai Mine Design Institute starts to establish a working group for work including: planning, investigation, data collection, planning and optimization, project evaluation, "report" writing, and exchanging views with commissioned units to form a formal report.

In all the work of the working group to carry out, investigation, data collection and plan optimization is the most important basis for selecting plant construction scheme. For these important parts, the working group requires different professional division and cooperation, including:

Collecting "Geological General Survey and Design", "Geological Survey (detailed survey) Report" or "Reserve Verification Report" and the approved documents of qualified geological prospecting departments.

Information collection: (1) Opinion and requirements of clients of mine construction; (2) For new mines, collecting the existing layout maps of exploration engineering; for technical improvement mines, collecting the existing transit system information; (3) Detailed knowledge of mining area terrain and surrounding environment conditions; (4) Design information of the preliminary design stage of mine.

Collecting the data on lifting, transportation, air compression, drainage and ventilation, then judging the status quo of existing equipment of the mine or the quantity and specifications of equipment required of new mine, coming up with the feasible plans for improvement, usage and procurement of mine equipment.

Information collection: (1) Investigation field geomorphic condition; (2) Collecting hydrological data and "geotechnical engineering investigation report"; (3) To know the local architectural style, structure, waterproof, thermal insulation and other building practices; (4) Investigation of material sources, transportation and price of the local building including gravel, brick, lumber, steel, cement, etc. Basing on these data, Civil Engineering Department explains the form of building construction for customers in the report and determines the main project structure and the main construction method.

For new mine, information collection: (1) The electricity supply environment of mine; (2) Topography and geomorphology between ore area and current source; (3) The basic condition of transformer substation; (4) The requirements of local power supply department, such as power, power supply mode, the starting mode of large electrical equipment; (5) The local requirements of lightning protection and grounding; (6) The condition of external communication and local communication. For improvement and extension mine, information collection: (1) Mine power supply existing situation; (2) The general situation of transformer substation; (3) The setting situation of existing safety source; (4) Existing communication situation.

Information collection for new mine: "Ore beneficiability test report", plant topographic map (1:500 1:1000), the water, electricity, tailings dam, environmental protection requirements, the construction standards, the amount of investment and building an opinion of owners. Information collection for extension mine: the current project scale, ore beneficiability test report, the present production process, operating parameters, material consumption, existing specification and production capacity of equipment, general layout plans of the existing processing plant, equipment layout plans of a workshop, production problems. Basing on these data, mineral dressing specialty comes up with a feasible solution for new or renovation and expansion mineral dressing plant.

In addition, the specialties needing to collecting information including general plan transportation (geographic and topographic data; social economy; weather; flood; engineering geology and hydrology geology; traffic; environmental protection), tailings (tailings information, hydrometeor), drainage, HVAC, etc.

By the data collection and the feasibility study from the various specialties, Mine Design Institute ultimately determines a feasible scheme for the plant construction and writes the " feasibility study report " submitted to the relevant departments.

"Feasibility study report" with strict requirements on qualification, ability, experience, professional title of a writer is an important basis for evaluation EIA and safety unit (some projects must take soil and water conservation and land reclamation evaluation).

After "Feasibility study report" approved, Mine Design Institute starts preliminary design and comes up with the design of dressing plant construction. Design mainly involves dressing, general layout, electric power, communication, civil engineering, environmental protection, water supply and drainage, tailings, safety and fire protection, investment estimates, economic benefit. For the improvement and extension enterprises, the preliminary design will illustrate the status, characteristics, plant, main problems, utilization of main buildings and equipment.

Xinhai Mine Design Institute has many engineers who can design different types of dressing plants (less investment, quick capital return or easy management) according to clients requirements. what's more, the design cost is lower than the national standard.

After the completion of the preliminary design, Design Institute experts will gather all content to form the detailed Preliminary design report " submitted to the competent department of Mine Design Institute.

When the preliminary design is approved, Mine Design Institute starts to design working drawings. Every aspect of dressing plant needs a lot of construction drawings (generally, over 100 working drawings), such as civil construction. Engineers of Xinhai Mining Institute are numerous with rich experience and drawing speed. When the working drawings completed, the designers must hand the drawings over to construction commanding officers, especially, the notes, strict regulation and important content.

Xinhai Mine Design Institute is the first mineral processing design institute, with class B design qualification of metallurgical industry, which can undertake the design business of non-ferrous metals industry construction projects and support engineering without scale limitation.

Xinhai Mine Design Institute provides technical support for EPC, mainly responsible for the relevant problems of mine design and mine consulting. Over the past 20 years, hundreds of Xinhai EPC are completed successfully relying on the technical support of Mine Design Institute as.

Xinhai Mine Design Institute owns over 200 professionals from various specialties including geology, mining, mineral machinery, ore dressing, smelting, civil engineering, electric power, general drawing, drainage, tailings, heating and ventilation, technical economy, budget, etc.

Mining Department is usually carried out geological exploration and survey and provides mining method and equipment according to the opinion & requirement of clients, terrain landform and the surrounding environment of the mining area.

In engineering consulting, Mining Department provides a better mining method and outline of mining equipment list according to the actual situation and their rich experience. They would estimate the investment and economic benefits of mining part. In addition, they also solve the problems of mining for clients.

In the engineering consulting, the Electric Power Department will first have a detailed understanding about power condition and plant, and then provides a general electric equipment list according to the actual situation, finally providing the cost quotation of factory power part.

Civil Engineering Department should understand the local meteorological and seismic condition, and designs supporting facilities according to the process design of the Mineral Dressing Research Institute and plant construction site, and finally, gives general quotation with consideration of materials and size of buildings.

malaysia cnmc 700t/d gold cil project

malaysia cnmc 700t/d gold cil project

As one of the countries along with One Belt and One road, Malaysia is rich in tin, iron, gold, tungsten and other mine resources. Among these resources, the reserve of tin is at the second of the world. There is not enough mine equipment in Malaysia for current mineral processing demand, although with rich mine resources. Therefore, Malaysia is highly depending on import mine equipment and the mineral processing market is highly potential. China became the best choice of import mine equipment source for Malaysia depending on advantage geography position mature mine industry experience.

At the same time, CNMC Goldmine Holdings Limited (CNMC), as the top mine company in Malaysia, is looking for a strategy cooperation partner to provide professional mine technology consultant service and high-quality mineral processing equipment for them, depending on the experience and knowledge of mining producers, as well as the rich market resources and mine resources accumulated over the years. They need a partner who can help them extending the market of Malaysia mine industry.

The natural ore of this project includes pyrite, quartz, calcite, mica, etc. The raw ore has 4.70g/t gold, 4.63g/t silver, 20.10% iron, and 20.55% sulphur in it. Gold is available for recovery of valuable elements.

Wet energy-saving grid ball mill, wet energy-saving overflow ball mill, updated high-efficiency thickener, double-impeller leaching agitation tank, XPA high-lifting wear-resistance rubber slurry pump, filter press, XPA wear-resistance rubber slurry pump,etc.

The ore characteristic of this project is simple. After mineral processing experiment the process flow was determined as raw ore grinding to 85% -200 mesh, lime as protective alkali, and add sodium cyanide agitating and leaching. Under the consider that pulp concentration is 40%, lime is 7kg/t, and sodium cyanide is 4kg/t, leaching for 24 hours, the final leaching rate of gold is 93.40%.

Grinding stage uses two-block close circuit grinding and classification, grinding production flows to thickener after screening by dust screen. The underflow is pumped to leaching operation. Through leaching, absorption, carbon lifting, get gold carbon product. The gold carbon products are transported and dealt in gold desorption plant.

The design and research service of Malaysia CNMC gold processing plant project was responsible by the professional project group from Xinhai Mine Design and Research Institute. The professional project group finished the project experiment and design task in limited time, and defined the process flow and process index according to the ore samples from clients.

Equipment manufacturing and mine design were at the same time. Xinhai Mining manufactured and purchased relative equipment to short the engineering period and reduce the cost of project.

The installation and debugging staffs from first line of mine production participated in and managed the installation and commissioning of project equipment in the whole process, quickly solved the routine problems in the field civil engineering and installation work, and adjusted the construction scheme in real time. Xinhai Mining finished the installation and commission of CNMC project in high quality during limited time.

To ensure the successful operation and to reach predicted recovery rate as soon as possible, the technics of Xinhai Mining trained and instructed the workers in processing plant. So that the workers could be familiar with the operation of processing plant as soon as possible.

This is the first project under the cooperation between Xinhai Mining and CNMC. According to processing experiment through the sample ore from clients, the process flow and index was confirmed after the comparing gravity separation and all-sliming cyanidation technology.

During the construction design, the relevant aboveground part of the bunker, platform, design foundation, pool design was designed into steel structure as far as possible, so that in the mine site was very flexible assembly, not only reduced the civil work load and construction time, and reduced investment, but also easy to disassemble and move.

Since May 2017, when Xinhai Mining accepted Malaysia CNMC gold project, it put into production in only six months. The origin capacity is 600t/d, but the real capacity is up to 700t/d. The predicted gold recovery rate is 93%, while the real recovery rate is up to 95%, which received a good profit for this project.

Malaysia CNMC 700t/d gold project has successfully reached the standard and put into production in a short period of time, which not only fully reflects the excellent mineral processing technology strength and the overall service advantages of Xinhai technology and mineral processing EPC+M+O service, but also wins further recognition for Xinhai Mining. After the project was successfully put into production, Xinhai Mining and CNMC became stategy partners and once again joined hands with Malaysia 500tpd lead-zinc project, leading the development of dong mineral processing industry in Southeast Asia to a new peak. With the "One Belt And One Road" initiative, Xinhai Mining has successfully served many countries along the line, mineral processing EPC services all over the world, in the future, Xinhai Mining will also strive to create customized mineral processing EPC+M+O service for each customer.

epc, mine epc, mine design epc, xinhai mine epc+m+o - xinhai

epc, mine epc, mine design epc, xinhai mine epc+m+o - xinhai

Xinhai devotes to providing Turn-key Solution for Mineral Processing Plant, namely design and research- complete equipment manufacturing and procurement-commissioning and delivery - management and operation. Up to now, Xinhai has established multiple overseas offices in the world.

Manufacturing and purchasing mining and processing equipment, mine supplies, installation and repairing instrument, machine maintenance workshop, test room and laboratory equipment, combined rooms, steel structure workshop, combined steel structure mineral processing plant producing line;

Instruction of mineral processing plant construction and equipment installation, completing equipment commission, training workers, providing spares and consumptions, repairing, equipment maintenance, gold smelting and so on;

Mine manage and operation service is the management in mine construction and operation in mine production due to client needs. It includes mining engineering, construction engineering, tailings pond construction, mine daily operation and management and so on.

The Mongolia 1,000t/d gold mineral processing plant was an EPC+M+O project. Xinhai worked to achieve high recovery of gold and other valuable minerals by cutting costs and maximizing benefits and attach great importance to workers safety, environmental protection and energy conservation.

Mexico 1500t/d copper lead zinc gold and silver polymetallic ore dressing project is a mining industry chain service (EPC + M + O) project undertaken by xinhai, which is solely undertaken by xinhai from design and research, manufacturing and procurement of complete sets of equipment, commissioning and delivery to mine management and operation.

The Guinea 6,000t/d gold mineral processing plant was an EPC+M+O project. The design scope covered construction drawings and workshop drawings and involved engineers in the fields of mineral processing, water supply and drainage, power, civil engineering and general layout.

The Malaysia 700t/d gold mineral processing plant was a symbol of Chine-Malaysia cooperation in the mining industry under the policy of The Belt and Road. The raw ore consisted of pyrite, quartz, calcite and mica, with gold being the valuable mineral. It had a gold grade of 4.70g/t, silver grade of 4.63g/t, iron grade of 20.10% and a sulfur grade of 20.55%.

The Sudan 700t/d gold mineral processing plant was an EPC+M+O project. The ore of this project contained 2.97g/t of gold, most of which were earthy minerals with particle size below 2mm. A small part of the ore was blocky minerals, and the maximum particle size was 70mm.

mineral processing, equipment manufacturers, ball mills, flotation, thickener - xinhai

mineral processing, equipment manufacturers, ball mills, flotation, thickener - xinhai

The new grooved annular liner increases the ball ore contact surface, strengthens the grinding effect, and has the ability to lift the ore, reducing energy consumption; the large double-row spherical roller bearing design can reduce the friction.

An air inflation mechanical agitation floatation cell with slurry suction, which is featured with strong agitation force, good air spreading effect, uniform mixing of slurry and air, less sedimentary of tailings, low turnaround speed and low power consumption.

This thickener is a new type thickening equipment independently developed by Xinhai. The thickener is equipped with additional deaerating tank, which can eliminate the solid particles attaching to the bubbles.

A double stages slurry pump with head of 70m. It is lined with high wear-resisting rubber, whose abrasion resistance index is up to 128%. Double Stages Slurry Pump is a rare rubber slurry pump with integrated effects of wear-resisting, anticorrosion and high head.

The Mongolia 1,000t/d gold mineral processing plant was an EPC+M+O project. Xinhai worked to achieve high recovery of gold and other valuable minerals by cutting costs and maximizing benefits and attach great importance to workers safety, environmental protection and energy conservation.

Mexico 1500t/d copper lead zinc gold and silver polymetallic ore dressing project is a mining industry chain service (EPC + M + O) project undertaken by xinhai, which is solely undertaken by xinhai from design and research, manufacturing and procurement of complete sets of equipment, commissioning and delivery to mine management and operation.

The Guinea 6,000t/d gold mineral processing plant was an EPC+M+O project. The design scope covered construction drawings and workshop drawings and involved engineers in the fields of mineral processing, water supply and drainage, power, civil engineering and general layout.

The Malaysia 700t/d gold mineral processing plant was a symbol of Chine-Malaysia cooperation in the mining industry under the policy of The Belt and Road. The raw ore consisted of pyrite, quartz, calcite and mica, with gold being the valuable mineral. It had a gold grade of 4.70g/t, silver grade of 4.63g/t, iron grade of 20.10% and a sulfur grade of 20.55%.

xinhai mine design instituteplanning reasonable mines, and focus on the full effect-xinhai

xinhai mine design instituteplanning reasonable mines, and focus on the full effect-xinhai

Xinhai mineral processing equipment mainly include: grinding equipment, flotation equipment, dewatering equipment, magnetic separation equipment, and so on. Some of the equipment is Xinhai independent research and development, and has been awarded national patent. View details

Gold CIP Production Line adsorbs gold from cyaniding pulp by active carbon including 7 steps: leaching pulp preparation, cyaniding leaching, carbon adsorption, gold loaded carbon desorption, pregnant solution electrodeposit, carbon acid regeneration, leaching pulp. View details

Mine construction has the specifics of a complex system, large investment and high risk. The risks are shown not only on the uncertainty of resources, and also on the risks during construction, production and management. To guarantee the successful production and receiving the predicted economic efficiency, the mine design is essential. Mine design serves the whole life of mine projects. The reasonable mine design can effectively reduce the investment, avoid risks and guarantee the project advancement.

Xinhai Mine Design Institute has the professions including geology, mining, processing, tailings, general drawing, drainage, HVAC, power telecom, instrument and automatization, civil construction and steel structure, preliminary budget, technical economy, etc. It can provide a thoughtful consultant, design and service.

Xinhai Mine Design Institute has the class B design qualification for metallurgical industry issued by the Ministry of Housing and Urban-Rural Development of the Peoples Republic of China. It provided consultant service for over 2000 projects in China. It took part in over 200 design and construction projects of metallurgical mines, non-ferrous metal mines, gold mines, and nonmetal mines in over 90 countries and districts. It took part in near 30 design projects and over 20intent projects in only the first half-year of 2020.

Before the design of mine construction project, Xinhai Ming carries out multiple experiments and researches according to metallurgical, non-ferrous metals, gold, and nonmetals minerals. According to the experiment results, the scientific mine design is carried out with a reasonable production flow and recovery indexes. The three important content includes feasibility studies, preliminary study, and construction documents design.

According to the environmental conditions and policy requirements of the project site, the reasonable process configuration is customized for every project from technical guarantee and economy. The feasibility studies are issued according to Chinese standard, Australian JORC standard, Valmin standard and Canadian NI43-101 standard.

It optimizes and refines the process solution and equipment deployment in the feasibility study, and also break the indexes down to link with the later construction accurately. For reconstruction, expansion and continuing construction enterprises, it is explained in the preliminary that current situation, characteristic, main problems and usage condition of main building and equipment.

According to the process configuration and determining equipment list, the basic, structure and installation detail drawings are deployed. Excavation and filling works and buildings, the consumption of installation materials, personnel deployment and working time consumption are also statistics.

Xinhai Mine Design Institute has class B design qualification of metallurgy industry, and 6 administrative offices, 18 professions, and over 80 professional design talents involving the majors of geology, mining, mine machine, underground construction, processing, drainage, HVAC, tailings, pipeline, technical economy, preliminary budget, thermomechanical, general drawing, civil construction, electricity, automatization, 3D, steel structure, etc. It can provide design and consultant service for black metal mines, ferrous metal mines, gold mines and nonmetal mines. The design scale is hundreds of tons to millions of tons per year.

Besides, Xinhai Mine Design Institute can provide mine design service before sales. According to the requirements of clients and the practical production experience of similar mines, the preliminary processing flow, equipment list and general investment budget are issued.

Xinhai Mine Design Institute has professional SolidWorks 3D design software and PDM design management system. It can carry out the design for conventional mines, mobile mineral processing plant, 3D mines, combined steel structure mineral processing production line. The combined steel structure mineral processing production line combines all the reinforced concrete silo, sinks, plates, equipment supports, funnels, chutes and so on. It can flexibly assemble at the scene, which reduces the workload of civil construction and construction time, and also reduces the investment. It is also easy to disassemble and move. According to the requirement of a small gold processing plant in some districts overseas, Xinhai Mine Design Institute developed design and disassembly drawing of steel structure construction drawing of modular dressing plant, which gradually formed into a set of small scale steel structure frame design standard.

Xinhai Mine Design Institute can design according to not only the Chinese standard, but also Australian JORC standard, Valmin standard, and Canadian NI43-101 standard. Xinhai established strategic partnerships with the mining design consulting companies in Australia and Canada. Strategic cooperation between the two sides, complementary advantages. The E part of mineral processing EPC+M+O can be completed by both sides. The main and specific part is completed by Xinhai, and the design examination and qualification are responsible by the Australian or Canadian cooperation of Xinhai.

For Africa, South America, mid-Asia, southeast Asia and other countries and districts, Xinhai Mine Design Institute can design according to the design standard of China, Australia, Canada, and local countries.

Ore characteristic: The ore of this project is mainly oxide. The 80% of ore is powdery clay ore with gold particles. The average grade of ore is 1.0g/t. There are few impurities and gold is the only valuable mineral.

The 80% of ore is powdery clay ore, with water 25%~30%. On the one hand, Xinhai Mining solved the problems of feeding and easy to block. On the other hand, the gravity separation and cyanidation process is applied, and strengthen the gravity separation and grinding. A part of gold particles is recovered at the gravity separation stage. The gold grade into leaching operation is reduced, also reducing the reagent consumption and production costs.

Ore Characteristic: The mineral composition of ore is simple. The metal minerals are mainly copper pyrite, iron pyrite and so on. The non-metal minerals are mainly quartz, chlorite, etc. From the multiple element analysis, the valuable element of this ore is copper. The copper grade of raw ore is 0.80%.

Xinhai solution: Two and a half stage closed crushing one stage closed grinding one stage rough separation two-stage scavenging two-stage concentrating flotation two-stage mechanical dewatering process.

The rough crushing and half crushing use jaw crusher. Fine crushing uses cone crusher. The heavy type circular vibrating screen is applied for screening operation. The final crushing particle size is less than 12mm. Wet grid ball mill is applied for grinding operations. The linear vibrating screen is applied for pre-classification. Controlling classification uses XCII classifying hydrocyclone unit. The final grinding fineness is 68.0% under 200 mesh. Lime can be used as a regulator, and Z200 as a collector. The raw ores grind to 68.4% under 200 mesh. The rough separation and two-stage scavenging use XCF or KYF flotation cells. BF flotation cell is used two-stage concentrating flotation. Finally, the grade of copper flotation concentrate is 20.00%. The copper recovery rate is 90%. The first stage dewatering uses updated high-efficiency thickener. The second stage dewatering uses a chamber filter press. Finally, the water content of copper concentrate filter cake is 20%.

Ore character: The ore is mainly sulfide and oxide. The grade of oxide ore is 2.4g/t. The gold is the only valuable element. The leaching rate of all-slime cyanidation is 93.75%. The gold content of sulfide ore is 10.7g/t. The gold leaching rate is 91.58%.

Crushing stage: one stage open crushing; Grinding and classification stage: one stage closed grinding, hydrocyclone classification; Processing operation: all-slime cyanidation processing flow. The gold-bearing carbon is withdraw in desorption electrolysis system; The gold mud smelts. The tailings are dry stocking through concentration and dewatering.

Ore characteristic: The ore deposit is featured by stable standard mineral. Different stages of mineralization repeats. The sulfur content is very low. It is low sulfide ore. The metal minerals include silver-gold, gold, blende, galena, hematite, etc. The gangue minerals include quartz, sericite, feldspar, calcspar, chlorite, zircon, apatite, etc. The weakness of this ore deposit is fault mud. Fault mud is along the main crack, with thickness of 5-20 cm. The rock is formed with gray-black and gray-white mud.

One stage open crushing processing flow is used. The final crushing production particle size is under 160mm. One stage open self-grinding and one closed grinding classification flow are applied. The grinding fineness is 55% under 200 mesh. To increase fine particle content, suitable steel balls should be added during production. The self-grinding mill is under half self- grinding state. Hydrocyclone unit is used in classification operation with high classification efficiency, simple structure, reliable and small footprint. In flotation, XCF-KYF flotation combined unit is applied, which has a simple configuration and low consumption. In the concentration stage, self-inflation SF flotation cell is used which has a good flotation effort. The gold concentrates are pumped to the original concentrate dewatering system. The tailings are sent to the original tailings pond and downhole filling.

There arent the same mines in the world. Only customized mine design completed in the early stage the whole mineral processing plant can realize the balance of investment, cost, indexes, and economic effectiveness. Xinhai Mining insists on customizing design solution for every mine with innovation thoughts, and strong technology strength as core competitiveness, and provide ideal processing efficiency for your mine.

mineral processing caseguinea 6000tpd gold processing project - xinhai

mineral processing caseguinea 6000tpd gold processing project - xinhai

This is a country known as the "geological miracle", who is rich in mineral resources and is an important resource-based country in West Africa. Guinea has a large variety of mineral resources, large reserves, wide distribution, high mining value and great development potential. In particular, bauxite, iron, gold, diamond, nickel, copper, cobalt and other resources occupy an important position in the world. In recent years, mining companies from around the world have been taking part in mining in guinea.

In 2018, Xinhai Mining formally signed the contract of 4000tpd gold processing plant with the client, providing it with one-stop and customized mineral processing EPC+M+O service. Xinhai Mining pointed out that due to the presence of gold particles, some gold particles were lost in the process of sampling, sample preparation and reduction in the original geological exploration process. Therefore, it is necessary to take large samples and then adopt gravity separation, and the concentrates, medium ores and tailings obtained by the gravity separation for sampling and analysis respectively, and the adhesion of gold particles on the equipment surface during the sample making process shall be considered.

The rigorous attitude, accurate data and customized services of Xinhai Mining were greatly appreciated by the client. And the client also recognized Xinhai Mining's strong brand strength, customized mineral processing EPC+M+O service, advanced and reliable equipment quality and excellent customer service, which contributed to the partnership. Finally, Xinhai Mining only took 10 months (including 2 months of transportation and customs clearance) before the project was formally put into operation with considerable economic benefits.

In 2019, the client decided to expand the original 4000tpd gold processing plant and expand the production capacity to 6000tpd on the original basis. Based on the successful production practice in the first phase, the client chose Xinhai Mining for re-cooperation, and entrusted Xinhai Mining to provide one-stop, customized mineral processing EPC+M+O service for its 6000tpd gold processing project.

Ore Properties: the ore of this project was mainly oxidized ore, 80% of the ore was powdery clay ore, containing granular gold. The average grade of the ore was 1.0g/t, the quality of impurities is very little, the gold was the only recoverable element, and the ore was easy to be separated.

Most of the raw ore in this project was fine slime ore with fine particle size, which didn't need the crushing stage. The raw material can be directly fed to the raw material warehouse, or discharged to the raw material warehouse for storage, and then sent to the steel bin by the forklift truck. The material was fed into the belt conveyor by the belt feeder under the material bin, then sent to the ball mill for grinding.

The underflow density of the thickener was concentrated to about 40%, which was pumped into the double impeller efficient leaching tank by the slurry pump for leaching and carbon adsorption. And the roots fan was used to fill the leaching tank with air, the NaCN was added at the same time to make the full reaction among slurry, reagent and air.

The gold in ore reacted with NaCN in alkaline environment to form gold cyanogen complex ion. The gold entered the solution and was adsorbed by activated carbon. During the production, the carbon was extracted in reverse and the saturated gold-bearing carbon was extracted by the No.2 leaching tank. The undersize pulp was returned to the No.2 leaching tank. The oversize gold-bearing carbon was sent to the carbon storage tank for washing the carbon by the hydraulic conveying. The clean saturated gold-bearing carbon was re-sent to the desorption electrolysis system for gold processing, and the gold sludge was smelted in the high frequency melting furnace to obtain the final composite gold.

After a few times of use, the activity of activated carbon was weakened, the adsorption capacity of gold was decreased. In order to recover its activity and ensure its recycling, it is necessary to conduct regeneration treatment on degold-deoxidized carbon. There were two regeneration methods of activated carbon: one was pickling regeneration, another was high temperature activation regeneration.

The cyanide tailings were transported to the tailings pond by slurry pump for precipitation. The tailings were stocked in the pond, and the clarified water was returned to the production pond for recycling, so as to realize zero discharge of production sewage.

From mineral processing test, mine design, equipment manufacturing and procurement, packaging and delivery, installation and debugging, worker training, production standards reached to the project management and mine operation, all links were contracted by Xinhai Mining. The one-stop, customized plant solution was featured with high efficient project construction, short construction period, put into production quickly.

The price of concrete was expensive in Guinea, the cost of the same amount of concrete was about five times of China. In order to reduce the investment and speed up the construction speed, Xinhai Mining adopted combined steel structure (including the warehouse) for the above-ground part, the steel structure was totally pre-processed in China, which can be assembly, disassembly and movement flexibly after transported to the site with fast construction, low investment and beautiful shape.

80% of the ore were powdered clay ore, the raw ore contained 25%-30% water. On the one hand, Xinhai Mining solved the plugging and feeding problems of powdered clay.On the other hand, Xihai Mining adopted gravity separation + cyanide process, specially strengthened the gravity separation process and grinding process, that is, firstly recycled part of the gold particles in the gravity separation process, reduced the gold grade of entering the leaching operation, thereby reducing the reagent consumption, saving the production costs.

The whole plant was built according to terrain, each building was relatively concentrated. The equipment configuration in each plant room of the concentrator considers the main pulp to realize self-flow as far as possible.

the leaching agent used in the project adopted the environmentally friendly leaching agent with low toxicity, reagent consumption and cost. At the same time, the indicators obtained by this leaching agent is the same as the sodium cyanide.

At present, the Guinea 6000tpd gold processing plant project has been successfully put into operation, the whole plant operates steadily, the equipment quality is reliable, and the dressing index and economic benefits have reached the expectation. Xinhai's professional mineral processing service strength has also been affirmed by the project customer.

The Guinea 6000tpd gold processing plant has successfully reached the standard and put into operation within a short time, which not only fully reflected the strong ore dressing strength, professional customized solutions and thoughtful customer service of Xinhai Mining, but also laid a solid foundation for further cooperation between the two sides.

After the successful operation of this gold processing plant, the project company in guinea quickly started the construction of another 15000tpd gold processing project in 2019, and continued to the cooperation with Xinhai Mining. At present, the Guinea 15000tpd gold processing plant has entered the stage of installation and debugging.

From the first cooperation, to the second cooperation, and then to the third cooperation, this project customer has become a partner who has a deep partnership with us. The mineral processing plants undertaken by Xinhai Mining has become the model project examples in local.

In Africa, more than 100 mineral processing EPC+M+O projects undertaken by Xinhai Mining spread in Guinea, Tanzania, Zimbabwe, Sudan, Nigeria, Morocco and other countries, effectively promoting the development of African mining industry. In the future, we will continue to adhere to the comprehensive deepening of reform, in-depth promotion of Xinhai solution, spread the correct concept and method of mine construction, and effectively provide global customers with more perfect, professional mineral processing EPC+M+O service!

Related Equipments