Coal Series Kaolin And Its Processing With Coal Series Kaolin Grinding Mill

The reserves of coal measures kaolin in China are very rich, and the coal measures kaolin is an important kaolin resource with complete varieties and excellent quality. Coal series kaolin resources, calcined kaolin products with high whiteness, have great development and application prospects. HCMilling(Guilin Hongcheng), as a manufacturer of coal series kaolin grinding mill equipment, will introduce coal series kaolin and its processing and utilization as follows:

HLM  coal series kaolin vertical roller mill 

The coal measures are mainly hosted by hard kaolinite, which is usually in dense massive and sandstone shape in appearance. Due to organic matter and impurities, most of them are black gray, brown, light green, gray green and other colors. The fracture is porcelain or shell shaped, dull to waxy luster, with a hardness of about 3, and streaks of gray white white. Kaolinite has poor water absorption It is broken into small particles without plasticity and cohesiveness. According to the occurrence, genesis and physical properties of ore, the sedimentary kaolin in coal measures can be divided into kaolin deposits at the top and bottom of coal seams, and kaolin deposits with dirt bands that are not connected with coal seams. Different resource characteristics It basically determines the industrial direction that this resource can be suitable for development. Kaolinite is mostly used for industry. After grinding and calcination, kaolin can be obtained as commodity. High quality kaolin has the properties of soft, high whiteness, easy dispersion and suspension in water, so kaolinite has become a ceramic, chemical, pharmaceutical coating, rubber Mineral raw materials for building materials, metallurgy, national defense and other related industries. Due to the slightly different composition of kaolinite from different regions, some contain some trace elements beneficial to human body, such as selenium, germanium, strontium, iodine, etc., which are used in the field of personal health care products. Some cosmetics (especially facial mask) also contain kaolinite ingredients.

Processing technology of coal series kaolin: semi hard - semi soft - soft kaolin in coal series can be dispersed in water after crushing or without crushing. Due to its special physical and chemical properties, the processing and separation technology of hard kaolin is different from that of soft kaolin.

1. Dry mechanical crushing: At present, many manufacturers use coal series kaolin Raymond mill to process coal series kaolin into 200 (325) target soil powder. This kind of soil powder is mainly used as rubber, plastic, paint filler and ceramic raw materials.

2. Calcination and grinding: As sedimentary kaolinite mostly contains organic carbon, the most economical and simple method of carbon removal is calcination. Calcination of kaolinite can not only obtain products with high output value, but also improve the whiteness of products. The particle size of calcined kaolin often fails to meet the industrial requirements, so it needs to be further grinded by coal series kaolin ultra-fine vertical roller mill. HCMilling(Guilin Hongcheng) can provide ultra-fine vertical roller mill to grind kaolin to the required particle size range.

3. Synthesis of zeolite from kaolin: as a molecular sieve, zeolite is widely used in gas and liquid adsorption, drying, separation and purification, oil catalysis, cracking, soil improvement, etc. The raw materials of artificial zeolite are mainly silicon compound, aluminum compound, alkali and water. The chemical composition of high-quality kaolinite in coal measures is close to the theoretical value of kaolinite. This kind of kaolinite can be calcined to synthesize artificial zeolite with aluminum compounds, alkali and water under certain physical and chemical conditions.

The coal measures of Shanxi and Inner Mongolia in China contain a large amount of kaolinite. The development and utilization of kaolin resources in coal gangue can turn waste into treasure, further develop circular economy and extend the industrial chain, which has significant mine environmental and economic benefits. HCMilling(Guilin Hongcheng) is a manufacturer of coal series kaolin grinding mill equipment. Our coal series kaolin Raymond mill, coal series kaolin ultra-fine vertical roller mill, coal series kaolin vertical roller mill and other equipment have been widely used and recognized in coal series kaolin processing and utilization projects. If you have relevant processing needs, please contact us for details of the equipment.