xinhai secondary gold ore ball mills for mining

gold ball mill - xinhai

gold ball mill - xinhai

The steel ball is the grinding media of the gold ball mill. In the working process, the steel ball will directly affect the grinding efficiency of the gold ball mill and even the working efficiency and product quality of the whole concentrator.

Below, we will introduce the steel ball in detail from its specification and quantity, material, ratio and grading to help you choose and add the steel ball correctly, so as to improve the grinding efficiency of the gold ball mill.

Generally, the diameter of the steel ball is between 20mm and 125mm. Among them, the diameter of the small steel ball is generally 40mm and a 60mm, the diameter of the medium steel ball is generally 80mm, and the diameter of the large steel ball is 100mm or 120mm. The diameter of the super large steel ball is 130mm-150mm.

Theoretically, when the filling amount of steel ball in the ball mill is 40%, the ball mill can obtain the ideal output. But in the actual production, the filling rate of the steel ball in the ball mill is mostly about 35%, that is, the volume of the steel ball in the gold ball mill is kept slightly below the horizontal centerline of the ball mill.

As the "consumable" in the grinding operation, the wear degree of the steel ball is different due to the different material. At present, the mainstream steel balls of the gold ball mill on the market mainly include casting steel balls and forged steel balls.

Casting steel balls are mainly low chromium casting steel ball, medium chromium casting steel ball and high chromium casting steel ball, whose hardness, impact value and breakage rate are related to the metallographic structure of steel. The higher the chromium content, the better the wear resistance of the steel ball.

Forged steel gold ball mills mainly include low carbon alloy steel ball, medium carbon alloy steel ball, high manganese steel ball, rare earth chromium molybdenum alloy steel ball. The impact toughness of the forged steel ball is large, not easy to deform, but the crushing rate is low.

When first enabled, the gold ball mill needs the large, medium and small steel ball for matching, and the steel mill ball for the first time should be added to 80% of the amount limit that the ball mill manufacturer of ball mill suggests. Because the gears of the ball mill need mesh after the installation, and the processing capacity of the ball mill is increased gradually, then the ball mill operator needs to observe the condition of gear meshing in two or three days. If all is going well, the ball mill operator can open the hole cover to add the remaining 20% of steel ball.

Usually, the small steel balls are used only in the first addition. When the ball mill is running normally, there will be reasonable friction between the steel ball and the steel ball, the steel ball and the ore, the steel ball and the lining plate of the ball mill, which makes the wear increase. The large steel ball is ground into small, and the medium steel ball is ground into the small steel ball, so there is no need to add the small steel ball under normal circumstances. However, if the particle size of the useful mineral does not realize the monomer separation, and the grinding fineness of the ball mill cannot meet the separation requirements (especially the flotation separation requirements), the appropriate amount of small steel balls can be added into the gold ball mill.

In addition, the ball mill steel ball is constantly worn in the operation, the ball mill operator must regularly make up the steel ball and maintain the load filling rate of the steel ball and reasonable ratio.

Determine the grading scheme of the steel ball usually starts from the first warehouse (namely the coarse crushing warehouse). For the multi-bin ball mill, the grading of the first bin is particularly important. According to the cross-gradation principle, the minimum diameter of the steel ball in the previous bin determines the maximum diameter of the steel ball in the next bin. It can be seen that the grading of the steel ball in the first warehouse actually dominates the grading of the steel ball in the other warehouses.

The upper limit of the ball diameter is determined according to the upper limit of particle size of the grinding material. The average diameter of the steel ball is determined according to the average particle size of the grinding material.

The composition proportion of each specification steel ball is set according to the proportioned principle of "small at both ends and large in the middle" for the grinding body and the distribution characteristics of material size,.

Calculate the average ball diameter of the mixed steel ball, and compare with the original average ball diameter of the steel ball, add the steel ball according to the proportion of the ball size. If the deviation is large, it is necessary to set the composition proportion of various steel balls and rematch the balls until the deviation is small.

The secondary grading method means to only select two different diameters of ball mill steel balls for grading. The diameter of the large steel ball depends on the particle size of the grinding material, and the diameter of the small steel ball depends on the size of the space between the large steel balls.

Usually, the diameter of small steel ball should be 13%-33% of the diameter of large steel ball. Generally, the small steel ball accounted for 3%-5% of the mass of large steel ball, and the incorporation amount of small steel ball shouldnt affect the filling rate of large steel ball in principle.

These are the main aspects of the steel ball involved in the grinding process: specifications and quantity, material, ratio and grading. For the concentrator, the selection and application of the steel ball involve many technical problems, it is suggested that the mine owners carefully analyze their own actual situation, determine the suitable steel ball for the concentrator through consulting the professional gold ball mill manufacturers, thus avoiding the unnecessary economic losses.

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

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

Xinhai devotes to providing Turn-key Solutions for Mineral Processing Plant (EPC+M+O), namely design and research - complete equipment manufacturing and procurement - commissioning and delivery - mine management - mine operation. The essence of EPC+M+O Service is to ensure sound work in every link. The model is suitable for most of the mines in the world.

Focusing on the research and development and innovation of mineral processing equipment, Xinhai has won more than 100 national patents, strives for perfection, strives to complete the combination of equipment and technology, improve productivity, reduce energy consumption, extend equipment stable operation time, and provide cost-effective services.

With Class B design qualifications in the metallurgical industry, rich in ore mining, beneficiation, smelting technology and experience, completed more than 2,000 mine design and research, not only can provide customers with a reasonable process, but also can provide customized equipment configuration.

The precious metal minerals are mainly gold and silver mines. Xinhai Mining has more than 20 years of experience in beneficiation for gold and silver mines, especially gold ore beneficiation technology. Gold craft and placer gold selection craft etc.

With Class B design qualification, it can provide accurate tests for more than 70 kinds of minerals and design a reasonable beneficiation process. In addition, it can also provide customized complete set of mineral processing equipment and auxiliary parts.

Xinhai can provide the all-round and one-stop mineral processing plant service for clients, solving all the mine construction, operation, management problems, devoting to provide modern, high-efficiency.

Through mineral processing experiment, the mineral processing flow is customized. Multiple tests are carried out in every link, and make sure the final processing flow to guarantee the successful mineral processing plant construction.

According to tailing processing technology, Xinhai has tailings reprocessing technology and tailings dry stacking. Tailings dry stacking is the self-launched tailings dewatering technology, which is the effective technology in green mine construction.

More than 2,000 mine design and research, equipment supply projects, more than 500 mining industry chain services (EPC+M+O) projects in more than 90 countries and regions around the world, we are always committed to providing you with one-stop, customized Chemical mine solution!

news - xinhai

news - xinhai

Usually, the maintenance and overhaul work of the flotation cell shall be equipped with full-time personnel, mainly including daily inspection, cleaning, lubrication and regular maintenance and other operations, so as to ensure the stable and continuous operation of the flotation cell.

Based on the above problems, the gold tailings disposal methods and comprehensive utilization of gold tailings is extremely urgent. At present, the common gold tailings disposal methods and comprehensive utilization mainly include the following ways: gold tailings reprocessing method, gold tailings dry stacking method, production of building materials, mine filling, reclamation and making field.

On March 18, The ceremony of Xinhai donating 250,000yuan scholarship to School of Chemistry and Biological in Shandong University of Science and Technology was held in meeting room of School of Chemistry and Biological.

On January 18th, Xinhai Mining EPC organized the 2020 Safety Summary Meeting and 2021 Safety Production Kick-off Meeting. Mr. Zhang Yunlong, chairman of Xinhai Mining, Mr. Han Qingwang, director of administration and operation, and the heads of various departments of the Production Management Center attended this meeting.

At the end of 2020, 84 teachers and students from the School of Chemical Engineering of Shandong University of Science and Technology came to Xinhai Mining for a 3-day visit and practice. Mr. Zhang Yunlong, chairman of Xinhai Mining EPC., and various departments warmly received the teachers and students and arranged a rich and reasonable internship program for them.

Time engraves new rings and records the footprints that go ahead. In the extraordinary 2020, we faced difficulties, turned against the wind, and became more brave as we fought. The hardworking and brave people in Xinhai, still handed over a shining performance report.

In recent years, "Green Mining" has become an inevitable choice for mining enterprises. As the "waste" after mineral processing, tailings has been recognized as the potential secondary resource, but traditional tailings wet discharging violates the principle "Green Mining".

Grinding mill has an impact on grinding cost and performance. The common grinding mills used in the mineral processing include ball mill machine, rod mill, autogenous mill, Raymond mill. Making a reasonable choice of grinding mill, reducing the grinding cost are important ways to improve the mineral processing efficiency.

Under the new situation, Xinhai Mining has paid long-term attention to extraction of gold, technology and equipment research & development. According to the different types of gold ore characteristics and user requirements, Xinhai has formed three kinds of gold mining processes for the extraction of gold, include gold cyanide leaching process, gold floatation process, gold gravity separation process.

According to the different grinding conditions, the ball mill can be divided into wet ball mill and dry ball mill. Before selecting the type of ball mill, we should know about the difference between the wet ball mill and dry ball mill, then make a targeted choice.

ball mill, grinding mill, ball mill manufacturers, ball mill working principle - xinhai

ball mill, grinding mill, ball mill manufacturers, ball mill working principle - xinhai

Xinhai grinding mill has excellent energy saving ability. According to the customer demand, manganese steel liner and wear-resistant rubber liner can be customized for Xinhai ball mill with good wear resistance, long service life, easy maintenance

High-quality equipment manufacturing capabilities, focusing on the research and development and innovation of mineral processing equipment, extending the stable operation time of the equipment, and providing cost-effective services.

mexico 1500t/d polymetallic mineral processing plant - xinhai

mexico 1500t/d polymetallic mineral processing plant - xinhai

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 design, manufacture and construction of the polymetallic ore dressing project are in strict accordance with the international standards of design, manufacture and application.In order to protect the interests of investors, reduce the investment as far as possible, increase the benefits as the main idea, at the same time, pay attention to the health and safety of the operation personnel, emphasize the harmony with the environment, resource conservation and recycling, single machine and machine group combination of high efficiency and energy conservation, and strive for each operation and the whole process of gold ore recovery.

mining engineering, extraction of metals, mineral processing, ball mills, flotation, mineral processing
 epc

mining engineering, extraction of metals, mineral processing, ball mills, flotation, mineral processing epc

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

Xinhai provides optimized solutions for your mine, one-stop service for mineral processing plant.include sample test, mine design, equipment manufacture, etc. LEARN MORE >>

dry ball mill

dry ball mill

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

The materials are uniformly sent to the first chamber of dry ball mill by the feeding device through the feeding hollow shaft. The first chamber of dry ball mill contains stepped lining board or corrugated lining board, and steel balls of different specifications. The centrifugal force generated by the cylinder rotation will bring the steel balls to a certain height and then drop down, which will have a pounding and grinding effect on the materials. After the rough grinding is finished in the first chamber of dry ball mill, the materials will enter into the second chamber through the single-wall partition, which is lined with flat lining board and steel balls to further grind the materials. The powder material is discharged through discharge grates, then the grinding operation is completed.

A Gansu mineral processing plant wanted to choose a dry type ball mill manufacturer for its second construction plant. At the early stage, too high equipment failure rate seriously influenced the productivity of entire mineral processing plant. Through the friend introduction, the client knew Xinhai Mining, and bought two dry ball mills for the mineral processing plant. At present, the dry ball mill has been formally put into production without abnormalities, and the working efficiency of the dry ball mills was increased by 12%.

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