What value can coal gangue bring after crushing and sand making, and the application of coal gangue
A large amount of coal gangue is piled up to generate dust and pollute the atmosphere, but after being crushed, it is widely used, not only for power generation, but also for agriculture, building materials and construction. Mixed materials, masonry mortar and wall materials, etc., its residual value can be fully utilized.
In the process of crushing coal gangue to make sand, the raw coal gangue is first crushed by the jaw crusher of the rough crushing equipment, and the coarsely crushed coal gangue is then sent to the impact crusher or cone crusher by the conveying equipment for secondary crushing. The finely crushed stone is screened by vibrating screen to screen out materials of different specifications, and the coal gangue that meets the feeding particle size of the sand making machine is processed for sand making, and the other part is returned to the secondary crushing stage for re-crushing until the particle size is suitable, and then sent to the sand making machine Carry out sand making operations. The whole production line has a reasonable design and can be customized according to customer needs, with reasonable gradation and reliable quality; the finished materials are excellent, the crushing effect is better, the particle size is uniform, and the size is suitable; the production line has a high degree of automation, long working hours, and shutdown. The time is short, the estimated construction period is greatly shortened, and the efficiency is relatively high; and the concept of green environmental protection, energy saving and high efficiency is integrated, and the pollution to the environment during the operation is relatively small, which meets the requirements of environmental protection.
After a series of processes of crushing and sand making, coal gangue can not only be used to manufacture building materials, but also replace clay as a raw material for brick making. When burning bricks, the combustible material of coal gangue itself can be used to save coal; on the other hand, coal gangue can Part or all of the clay component can be replaced to produce ordinary cement. The spontaneous combustion or artificial combustion of coal gangue has a certain activity and can be used as an active mixing material for cement. It can also be directly mixed with lime and gypsum in an appropriate ratio, and ground into non-clinker cement as a cementitious material, using boiling slag as aggregate or using stones and boiling slag as coarse and fine aggregates to make concrete blocks or concrete hollow blocks, etc. building materials.
With the continuous development of society, coal gangue is also used to produce gangue cement, concrete raw materials, refractory bricks and other materials. Many people combine gangue and coal to promote hybrid power generation, produce crystalline aluminum chloride, water glass and other chemical products, or extract rare metals. At the same time, it can also be used as fertilizer. Generally speaking, after reasonable processing and utilization, coal gangue has high application value and wide range, so many investors come to consult coal gangue crushing equipment. Smmvik is a manufacturer with rich examples. If necessary, please consult us online, and we will always provide you with considerate service.