Vertical roller mill processing coal gangue

Coal gangue is a coal series hard kaolinite rock, also called kaolin is a nonmetal mineral resources, closely associated with coal. This kind of material for good brittleness, hardness is relatively not high, is easy to implement with a crusher, grinding machine grinding smooth, simple process, is very suitable for the resource rich area production project investment management. Liming heavy industry mill is composed of coal gangue powder grinding station production of coal gangue, coal gangue spontaneous combustion coal gangue powder and mineral products, some artificial or spontaneous combustion of calcination, through technical methods with living waste waste treatment, physical and chemical activation technology measures, by fine grinding of coal gangue powder products, Shi Fuhe, the compressive strength was as high as 80%, with a volcano ash effect, obvious micro aggregate filling effect and durability of effect. After fine grinding machine grinding, the activation of coal gangue and the spontaneous combustion coal gangue powder products are mainly used in: cement: composite activation of coal gangue and the spontaneous combustion of coal gangue powder and fly ash, to replace the traditional cement admixture. The concrete: composite activation of coal gangue and the spontaneous combustion of coal gangue powder and fly ash replacement products, which eliminates the coarse aggregate, in the part of the traditional ordinary concrete (gravel, pebbles in), production and test results show that: as long as the proper proportion, and adding appropriate additives, calcined fine coal gangue as admixture to produce high performance concrete. The additive, activator, curing agent, modifier. The thermal insulation products etc.. The airport, roads, reservoirs and dams. The mountain tunnel, well, well, well construction and pressure filling engineering. The suitable road brick, grass planting brick, road edge stone, brick, stone retaining River, culvert pipe, plate, sheet, pipe, cement tile, cement products and components. In recent years, many local area resources comprehensive utilization of coal gangue to gradually pay attention to it, and even specially formulated incentive measures to support, encourage enterprises to purchase related crusher, milling machine, the solid waste is more and more thought into electricity, building materials, energy and other resources available, in order to solve the problem of environmental pollution for a long time, with the application fields of coal waste stone powder is widely, especially in papermaking, coating industry flagship is the inevitable future development of the industry, the development and utilization of coal gangue is quite optimistic about the prospects.

The general coal gangue crushing and grinding is not high equipment requirements, jaw crusher, impact crusher, sand making machine can be easily achieved on coal gangue were preliminary crushing operations, such as hypertension and normal Raymond mill, grinding machine, milling machine, vertical roller mill machine, ladder and other large mill equipment can be carried out grinding on the product, according to the different areas can be applied to high or medium speed mill ring mill for superfine grinding materials. After calcination, the mill, ultrafine grinding, had abandoned coal gangue can handle to the field of paper, paint and other industrial grade requirements, turning waste into treasure. In addition, mill grinding of coal gangue can be used to make cement, building ceramic, power supply, fire retardant coating, rubber additive compound fertilizer production, a wide range of uses. At present, Guangxi Heshan City has been the introduction of advanced mill equipment of fly ash resource utilization in this area is rich in coal gangue, high whiteness, production of ultra-fine calcined kaolin, polymers, synthetic cryolite alumina powder, aluminum chloride and polymeric aluminum chloride, hollow bead and other high technology products.