Gangue Crusher - double Stage crusher,hammer crusher,impact crusher box type crusher，mobile crusher,sand making machine plant & price

Due to the diversity of gangue’s chemical composition, the complexity of its mineral composition, the uncertainty of its stacking time and the scale of its production, the basic research and high value-added utilization of gangue have brought great technical challenges. To achieve the scale, resource utilization and harmlessness of gangue, it is necessary to comprehensively consider the “quality” of gangue – rich in silicon chloride and aluminum oxide and the “quantity” – bulk. The dual similarity of gangue and building materials in “quality” and “quantity” determines that the resource utilization of gangue building materials is the most effective technical approach to achieve large-scale high value-added utilization of gangue. This chapter starts with the source and classification of gangue, and introduces the hazards of gangue on the basis of analyzing the physical and chemical properties of gangue, especially discussing the current status and existing problems of gangue utilization.

The process of turning large particles into small particles by external force is called crushing, and the machine used is called a crusher. The process of using external force to turn small particles into powder is called grinding or grinding, and the machine used is called grinding machine. The combination of crushing and grinding is referred to as crushing or crushing, and the machine used is referred to as crushing machine or crushing machine.

Increasing the specific surface area of materials
After the material is crushed, its specific surface area increases, which can improve the effect of physical action and the speed of chemical reaction. For example, when mixing several different solid materials, the finer the object is crushed, the higher the degree of uniformity of mixing; the burning of cement clinker is basically a solid-phase reaction, and its reaction speed is related to the particle size of the material. The finer the material is ground, the faster the reaction speed. The faster the reaction speed, the more heat is saved during calcination.

Preparing concrete aggregates and artificial sand
Preparing concrete requires aggregates (crushed stones) of various particle sizes, which are crushed and screened from large blocks of stone mined. When natural sand is insufficient, artificial sand can be prepared by crushing.

Dissociate the useful components in the ore
In the mineral processing operation, the crushing and grinding operation is to separate the useful components and impurities that are closely combined and coexisted in various useful minerals, that is, “dissociation”. After the material is dissociated, the impurities can be removed by mineral processing methods to obtain pure concentrates.

Prepare for the next step of raw material processing or facilitate use
In coking plants, sintering plants, briquetting plants, building materials and powder metallurgy departments, the raw materials used are generally large in size and require grinding to a certain particle size for the next step of processing.
In industrial sectors such as food, chemical medicine, fertilizers and pesticides, products are often ground into powder for use.

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