Coal gangue ultrafine mill

Coal gangue is solid waste discharged during coal mining and coal washing. It is a kind of dark gray rock with lower carbon content and harder than coal which is associated with coal seam during coal formation. Including roadway driving in the process of excavation gangue, mining process from the roof, floor and interlayer in the mining of waste rock and coal washing process pick out the gangue. As the main energy source in our country, coal plays an extremely important role in the social and economic development. The development and utilization of coal not only plays a huge role in promoting the social economy, but also has a significant impact on the environment. Coal gangue and coalbed methane are the major wastes generated during coal development and have long been regarded by the coal industry as hazardous and catastrophic gases. Coal gangue is the solid waste discharged during coal mining, mining and washing. Do not dispose of gangue, occupy a large area of ​​land. Sulfide in the coal gangue escapes or leaches can pollute the atmosphere, farmland and water. Waste piles will also spontaneous combustion fire, or collapse in the rainy season, silting up rivers and causing disasters. China accumulates more than 1 billion tons of coal gangue and annually discharges 100 million tons of coal gangue. In recent years, coal gangue is no longer regarded as only one of the largest industrial solid waste, but as a resource, it has been widely studied and applied in the fields of chemical industry, building materials, metallurgy and light industry. Coal gangue resources Has become the focus of the comprehensive utilization of coal gangue. For the choice of coal gangue ultrafine mill, Shanghai SBM pointed out: "The selection of good milling equipment is very crucial." In this field of production equipment, the well-known domestic mine crusher, mill research and development and manufacturers Shanghai Keli Rick has 20 years of production experience, its computer technology, network technology and other multi-disciplinary integrated integrated support for economic construction, driven by market demand, the harmonious development of mankind and nature, the step Steady pace, continue to digitize, intelligent, ecological and pleasant direction.

评论

发表评论

此博客中的热门博文

Artificial aggregate production process and advantages and disadvantages

Wool sand making machine by crushing, screening, grinding, washing the resulting sand and gravel. In the absence of natural sand areas, often using artificial aggregate pouring concrete. Artificial aggregate production process are: wool mining, processing coarse aggregate, fine aggregate processing, screening, after washing reserves and transportation. Advantages of artificial aggregate are: ① wool stope nearest arrangements, reduce storage, loading and transport links, saving investment; ② to adjust production mix than the aggregate of all levels make full use of wool, save mining cost; ③ artificial aggregate particle size distribution is good, save cement, fresh surface roughness to increase bond strength, good mechanical properties. The disadvantage is the need to increase drilling blasting, crushing, sieving, washing, sand and other processes, the process is cumbersome, install more equipment and a greater direct costs of the system. Wool sand by crushing, screening, grinding, wa...
阅读全文

Raymond Mill grinding system new advantages

Raymond Mill is a kind of grinding equipment that we commonly use in industrial ultrafine mill . It is suitable for limestone, calcite, marble, talc, gypsum, barite, fluorite, zeolite, manganese ore, ilmenite, phosphorus Minerals, bentonite, starch, kaolin and other stones with a hardness of less than Mohs 7 are ground and used in a wide range of applications, all of which are inextricably linked to its new grinding system. So what technology is applied to the grinding system used by Raymond Mill? 1. The new technology adopts a new vertical roll device. The grinding roller and the grinding ring are always in balance during the grinding process to form a uniform line contact grinding zone. The height of the grinding roller and grinding ring is increased from the original 160 mm to 200 mm, which increases the grinding contact area to a greater extent. 2. The classifier adopts a forced turbine classifier to extend the granularity of the finished product from the original 80-325 mesh range...
阅读全文

New sand maker consolidates infrastructure construction

Since the 18th National Party Congress, our country has been inclined tocontinue to invest heavily in infrastructure to promote economicbooming, which will further expand the market demand for vsi sand making machine and gravelaggregate. In the face of the huge gravel aggregate demand, it isnecessary for gravel equipment R D manufacturer to activelyprepare for high-tech sand making machine to help the rapid development of economy. Sand making equipment is the key to the production of high-quality sandand gravel aggregate, the quality of sand and gravel aggregates directlyaffects the quality of infrastructure works. For a long time, theoverall technical level of sand making is low; facing increasinglystringent technical and quality requirements in the market, China sandmaking machine manufactures require to take active innovation, furtherincrease R D investment on technological application to meet thehigh standards and high demand of the market. Hongxing machine deeply understands...
阅读全文