Calcium carbonate is divided into two categories: heavy calcium carbonate and precipitated calcium carbonate. Due to the differences of the particle size, crystal form, the nature of interface between heavy calcium carbonate and precipitated calcium carbonate, their features are vastly different.
calcining the raw materials such as limestone to generate lime (ingredient for calcium oxide) and carbon dioxide; then adding water to digest lime to generate lime milk (ingredient for calcium hydroxide)and then passing into the carbon dioxide carbide lime milk for calcium carbonate precipitation; lastly, the calcium carbonate precipitation by dehydration, drying and crushing system to get light calcium carbonate.
in the process of producing caustic soda (NaOH), can be a by-product of light calcium carbonate. Adding lime hydrate in soda ash aqueous calcium carbonate can generate precipitation, and get the caustic soda solution at the same time, lastly the precipitation of calcium carbonate by dehydration, drying and crushing system to get light calcium carbonate.
in the process of producing soda ash, by-product light calcium carbonate can be obtained. Saturated salt water with carbon dioxide for carbonation after inhaling ammonia, then get the heavy alkali (sodium bicarbonate) precipitation and ammonium chloride solution. Light calcium carbonate production technology is mainly divided into the following steps: 1. The limestone calcination 2. quick lime digestion 3.lime water carbonated4.sedimentation and filtration 5. Drying and crushing.
Stable performance, convenient operation, low energy consumption, adjustable and controllable final size, widely used grinding materials , equipped with special dust collector, and dust emission concentration is lower than the national environmental regulations completely.
The working principle is for vertical structure, covering a small area, complete and strong set, and motor transmission device enclosed gear box, with smooth transmission. An important part of the mill adopts high-quality steel manufacturing, so it is reliable and durable. Electrical system of the mill adopts centralized control, advanced and reasonable selection, automation with high degree, vibrating feeder with small size light weight, it is easy to adjust and save electricity.
It solves the leakage phenomenon when grinding the calcium carbonate, improves the grinding efficiency, eliminates the impact on the main shaft, prolonging the service life of the roller shaft, greatly improves the precision and efficiency of selecting powder, reduces the transmission between the mill and classifier and eliminates the resonance phenomenon.
This series mills are mainly applied to the powder processing of mineral products in the metallurgy, construction material, chemical, mining, the highway construction, water conservancy and hydropower, refractory materials, and steel, etc.
The working principle is that by the shovel blade ,calcium carbonate is put to the middle of calcium grinding roller and grinding ring , under the grinding pressure of calcium carbonate is crushed into powder, then under the action of the fan ,the powder of calcium carbonate is passed to analyzer. If the powder calcium carbonate fails to achieves the required fineness by analyzer, it will return to the grinding chamber to continue to grind then through analyzer, calcium carbonate is put into whirlwind powder collector finishing separation and collection. Lastly, with industrial filter cloth isolated exhaust was put into powder at one time. They can produce powder from various non-flammable and non-explosive mineral materials with Mohs hardness below 7.0 and humidity below 6%.
Lots of industries need calcium carbonate powder as raw material, such as PVC, Electric Cable, rubber, PE, painting and paper making industries. And many industries like PVC, PE and coating has specified standards to the powder size, usually it must be finer than 1250mesh. As a result, most grinding mills, such as coarse power mill, MTM series milling machine and MTW series grinding mill, are out of action. How to produce the ultrafine calcium carbonate powder? Currently, the mainstream machine is ZENITH XZM series ultrafine grinding mill. With this mill, not only 800-1250mesh powders are available, but also 1250-2500mesh powders are getable. Whats more important is that the production cost is quite low because of its special design.
Barite and fluorite compound mineralizer is incorporated in cement production ,which has a significant effect on promoting C3S formation and activation of C3S. Cement industry mineralizing agent
in 2009, a mining company in India intended to produce calcium carbonate powder with fineness of 5-10 micron at the capacity of 1.0 TPH. After investigate, we recommended him using our XZM221 Ultrafine mill and helped him build the plant.
LUM Series Ultrafine Vertical Grinding Mill is designed on the basis of many years' experience in grinding mill production. It adopts the Taiwanese grinding roller technology and German powder separating technology. The ultrafine vertical grinding mill integrates ultrafine powder grinding, grading, powder collecting and transporting.
Feed particle size: 0-10mm Production capacity: 5-18 tons / hour Applicable materials: calcite, marble, limestone, talc, dolomite, barite, kaolin, wollastonite, gypsum, feldspar, pyrophylite and other non-metallic mineral ores.
It owns many independent patents, such as multi-rotor classifier, special design of grinding curve and variable frequency motor, etc. All of these make it lead the trend of the milling industry in the world.
The dedicated grinding mill for high quality, huge capacity ultra-fine powder production, the best choice for ultra fine powder processing industry powder site can reach 10-20um D97 by first separation, 4-5um D97 by secondary seperation, capacity 5-30tons per hour.
Using GCC to replace the PCC, it saved the production cost. We have signed a long-term supply agreement with them. The production of PCC will cause the pollution. It is not good for the environment. Zenith LUM1125 mill meet the environmental protection standard. More and more customers choose our GCC powder.
SHANGHAI CLIRIK MACHINERY CO., LTD located in PUDONG New district of Shanghai china as a professional enterprise, which is specializing in research, manufacture and sales of all kinds of mining equipment. Our company has already formed a full set of modern production line, equipped with intelligent, standardized testing and controlling laboratories, owned a professional team for R&D, production, sales and service. Based on the principle of constant innovation and quality guarantee, customer foremost, we are able to provide our customers not only the highest quality products at the most favorable price but also the most reasonable solution.
Shanghai Clirik Machinery Co. Ltd. is an ISO 9001:2008 accredited manufacturer, supplier, trader and exporter of mineral grinding mill. Our company has already formed a full set of modern production line, equipped with intelligent, standardized testing and controlling laboratories, owned a professional team for R&D, production, sales and service. So far, we have established a whole production chain, the products cover micro powder grinding mill, high pressure grinding mill, vertical roller mill, Europe an version coarsegrinding mill, hammer crusher, jaw crusher, screw conveyor, bucket elevator and so on. They are widely used in the industry of mining, construction materials, chemicals, metallurgy, transportation, hydraulic engineering and so on. Specially we independently developed HGM micro powder grinding mill, which are not only renowned in domestic market, but also have been sold widely in Eastern Europe, Middle East, Africa, South Asia, Southeast Asia, Oceania, and America, etc. Our machines, mills, elevators and crushers are considered highly reliable due to their fluent performance, longer working life and no or minimal maintenance cost. In addition to the qualitative range, credit of our success goes to ability to meet sudden or bulk demands in less time, customer based approaches and strong financial position.
24 hours response to customer needs. According to the customer's grinding requirements, help customers choose equipment and program design. You are always welcome to visit our company and visit our prototype and showroom.
Strictly implement quality standards to ensure the quality of products shipped. Strictly implement the standard preparation and delivery process, timely and accurate inventory preparation, and fast delivery.
We have a number of overseas professional installation teams to provide technical guidance for equipment installation and commissioning. Provide professional operator training, including start-up process, disassembly methods, common problems and maintenance services.
Heavy calcium carbonate is ground from natural carbonate minerals (such as calcite, marble, limestone). It is a commonly used powder filler and is widely used in paper-making, plastics, rubber, paint, coatings, adhesives, sealants and other industries . At present, equipment in the mining industry is constantly being updated, and customers who are preparing to enter the industry see more and more milling equipment. The milling equipment of Zenith Group mainly includes Raymond mills, ring roller mills, ball mills, and ultra-fine vertical mills. Type mill and so on. So, which equipment is suitable for grinding heavy calcium carbonate?OWFUltrafine Grinder, Ultrafine Mill For Sale
Raymond mill mainly processes powder products of 200 ~ 400 mesh, and is the mainstream equipment for processing powder products below 325 mesh. The classifier can process 800 mesh products, but the output is small.OWFUltrafine Grinder, Ultrafine Mill For Sale
The ring roller mill is mainly used for processing 800-1500 mesh products, which has the advantage of low energy consumption, but the single machine production capacity is not large.OWFUltrafine Grinder, Ultrafine Mill For Sale
The ball mill plus the ultra-fine grade machine can process 600-2500 mesh ultra-fine powder at a time. The single machine has a large production capacity and stable performance, but the energy consumption is slightly higher.OWFUltrafine Grinder, Ultrafine Mill For Sale
The vertical mill has the characteristics of large independence, stable operation, high output, stable product quality, and low energy consumption (30%-40% higher than the energy efficiency of the ball mill).OWFUltrafine Grinder, Ultrafine Mill For Sale
The LUM ultra-fine vertical mill is a new type of mill based on the mill. It belongs to the grinding type with a high degree of strengthening of the mill. The direct improvement of the vertical mill is to increase the high-pressure spring system of the grinding roller part. The ultra-fine vertical mill is wider than the traditional mill, with finer particle size and higher grinding efficiency.OWFUltrafine Grinder, Ultrafine Mill For Sale
The improved dust removal system is more environmentally friendly, energy-saving and low power consumption than the previous mill. The electrical system of the ultra-fine vertical mill adopts centralized control, which has a better automation level. The vibrating feeder is small in size, light in weight, uniform in feeding, energy saving, easy to operate, and easy to maintain. The analyzer adopts an adjustable control system. Reduce power consumption and maintenance costs.OWFUltrafine Grinder, Ultrafine Mill For Sale
The dust-proof standard of the mill has reached the national standard, and the grinding device also adopts a more advanced laminated sealing setting method, which can actually greatly improve the sealing performance of the equipment. With good sealing performance, the LUM ultra-fine vertical mill has a greater advantage in the grinding work.OWFUltrafine Grinder, Ultrafine Mill For Sale
Grinding Mill, Ultrafine Mill, Vertical Grinding Mill manufacturer / supplier in China, offering Ultrafine Powder Grinding Pulverizer Plant for Barite/Calcite/Calcium Carbonate/CaCO3/Dolomite/Talc, CaCO3 Powder Paper Mill, Lime Dolo Vertical Grinding Mill Plant and so on.
Fujian Longyi Powder Equipment Manufacturing Co. Ltd. Is an innovative technology enterprise specializing in researching, manufacturing and marketing various powder manufacturing machines located in economic and technological development zone (national hi-tech district) in Longyan, Fujian. We also offer value-added technical support and professional after-sales services for customers home and abroad. With experienced management team, advanced powder equipment manufacturing technology and many R&D teams ...
As a new type of superfine grinding equipment, the LUM ultrafine vertical roller mill integrates powder grinding, separation and transportation. With years experience in mill production, the LUM ultrafine vertical roller mill are designed by our company, basing on vertical mills, we introduce Taiwans grinding roller technology and Germany powder separating technology.
As a professional medium and high-end processing equipment in plastic master batch, PVC, artificial stone, electric cable, non-woven fabrics and other industriesLUM Series Ultrafine Vertical Grinding Mill is mainly used for the ultrafine grinding of calcite, marble, limestone, talc, dolomite, barite, kaolin, wollastonite, gypsum, feldspar, pyrophylite and other non-metallic mineral ores.
The grinding curves of the roller shell and lining plate are uniquely designed based on the ultrafine pulverization principle, which makes it easier to form material bed, improving the grinding efficiency and increasing the proportion of finished products from the primary grinding.
According to the material bed pulverization principle, the materials stay a short time in the mill to reduce the repeated grinding.As a result, the iron content in the finished products is low and the whiteness and purity of the product are high
By adopting PLC control system, major parameters like grinding pressure, rotating speed of grinding disc and speed of classifier etc. can be accurately controlled to achieve accurate cutting size and stable quality.
Thanks to the use of ultrafine pulverization and multi-rotor separation, LUM series ultrafine vertical grinding mill saves energy by 30% to 50% compared to a common type mill when producing the powder of the same fineness, which achieves better economic effects.
The whole equipment is well sealed and the system operates under negative pressure. Therefore, powder and dust are prevented from flowing out of the system. It is environmentally-friendly and meets the national environmental protection requirements.
The materials drop on the grinding plate center through the screw feeder and evenly move outwards under the action of centrifugal force of the rotating grinding plate driven by the reducer; Large materials are crushed and ground by the grinding rollers when passing through the grinding area, while smaller materials form a material bed by extrusion for further inter granular crushing. The crushed materials continue to move towards the mill edge until being taken into the classifier by the air flow from the air inlet.
The powder particles failing to meet the particle size requirement fall back on the grinding plate for further grinding while the qualified powder particles are collected in the pulse dust collector with the air flow and discharged as finished products. However, the iron blocks and other sundries mixed in the materials move along with the materials towards the edge of the grinding plate due to their own weight. They fall into the lower chamber of the mill and then be discharged out of the mill through the slag discharge opening by the scraping plate.
In PVC and cable production industry, people usually add some additives to improve their quality. Calcite is one ingredient that could be added to PVC and cable production, our company could offer you the right grinding equipment to grind the raw calcite to suitable size. If you have any question, please feel free to chat with us online for free.
Additive is the material that dispersed in the molecular structure of plastic. It will not affect the molecular structure seriously, but can improve their properties and could reduce the cost. Crushed calcite powder with fineness of 800mesh is popular additives for both PVC and cable.
If you need to grind the raw calcite to 800 mesh, we recommend to you using our company's ZYM Ultrafine Mill or MTM130X Strengthened Ultrafine Mill. Big raw calcite first be crushed into small pieces, then they are fed into ZYM ultrafine mill or MTM130X strengthened ultrafine mill for grinding. Both of these two grinding mills can grind the calcite to 800mesh. To see how these two grinding mills works, please click ZYM Ultrafine Mill and MTM130X Strengthened Mill.
Put the raw material into hammer crusher by loader. The crushed raw material will be lifted into the raw material silo by bucket elevator. There is a belt feeder which can feed the crushed raw material into the XZM series ultrafine mill. The qualified size powder will be separated by the classifier and collected by the pulse bag filter!
Ultrafine powder vertical mill is the ideal equipment to process nonmetallic mineral powder such as calcite powder and lime stone powder etc. Guilin Hong Chengultrafine vertical millwith high cost performance and reasonable price is customers first choice.
Calcite which is a kind of common natural calcium carbonate mineral is mainly used in the areas of paper making, plastics, rubber, cable, and oil paint and coating material. Calcite powder is important to national economy.
Guilin Hong Cheng calcite ultrafine powder vertical mill (with several national patents) which is an integration of grinding and conveying can achieve one button automatic starting up and 4-40t/h output which can be adjusted by changing the number of the rollers; it is equipped with advanced multi-head ultrafine powder classifier; the grain size range of the finished product can be 325-2500meshes. Guilin Hong Cheng ultrafine powder vertical mill whose energy consumption is 40-50% lower compared with other mills can meet customers demand for large scale production of calcite powder.
The price of calcite ultrafine vertical mill differs according to different models, parameters and brands. Guilin Hong Cheng can customize calcite ultrafine vertical mill according to customers demand for output, grain size, moisture etc. to better meet the requirements in practical application so that unnecessary devices can be canceled to lower investment cost. Guilin Hong Cheng always follows the principle of reasonable price and high cost performance, our products are very competitive in the market compared with domestic and imported counterparts.
Application areas: widely used in the areas of metallurgy, chemical industry, desulfuration in power plant ,nonmetallic mineral powder production, coal powder production, rubber, coating material, plastics, pigment, printing ink, building material, medicine, food, etc.
Grinding features:high output and efficiency, eco-friendliness, high efficiency of classifying, wide grain size range of the finished product, high level of automation, high reliability, easy maintenance, and low running cost.
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calcite Moh's hardness is 3, it's one of friable minerals in many nature raw mine. After be grind, the calcite powder can be used in many different industries. and according to different calcite powder fineness, it will play different role in many different areas. About 300-2500 mesh calcite powder grinding, Clirik HGM micro powder grinding mill is a good helper. Details welcome to visit pour website https://lnkd.in/gDM_Djx or contact me on wechat or whatsapp +86
The purpose of this study was to investigate the dry grindability of calcite powders in a vertically and horizontally orientable laboratory batch type stirred mill. The experimental results were evaluated using stress intensity analysis. The performance was also compared in terms of mill orientation. The results showed that the d50 values decreased with increasing stress energy down to a certain point and then increased for both milling orientations. Even though the optimum stress energies for both vertical and horizontal orientations were in the range of 1*103 to 5*103Nm at 750 and 1500kJ/kg energy consumption, the product size was finer for the horizontal orientation at the same stress energy value. Additionally, to the best of the authors knowledge, this is the first study to compare mill orientation (vertical vs. horizontal) for the same mill and under the same test conditions.
Barley RW, Conway-Baker J, Pascoe RD, Kostuch J, McLoughlin B, Parker DJ (2004) Measurement of the motion of grinding media in a vertically stirred mill using positron emission particle tracking (PEPT) part II. Miner Eng 17:11791187
Blecher L, Kwade A, Schwedes J (1996) Motion and stress intensity of grinding beads in a stirred media mill. Part 1 : Energy density distribution and motion of single grinding beads. Powder Technol 86:5968
The authors would like to thank MicronS Company (Nigde, Turkey) for providing the sample, and Nide mer Halisdemir University Scientific Research Projects Directorate (Project No. FEB2016/23 BAGEP) for funding this research.
Cayirli, S., Gokcen, H.S. The Influence of Stirred Mill Orientation on Calcite Grinding. Mining, Metallurgy & Exploration 38, 15511560 (2021). https://doi.org/10.1007/s42461-021-00426-7