China's coal industry machinery manufacturing continues to grow. From the market survey in recent years, the export volume and use volume of China's coal major countries are constantly increasing, which has greatly laid a good foundation for China's coal preparation equipment manufacturing industry.

The emergence of coal processing industry, mainly primary products, market share is relatively small. Coal preparation equipment has always been the advantage of developed countries in coal processing and large-scale equipment technology. If it is used freely, it can well grasp the control of coal commodities, and large-scale coal coking and gasification can also better realize its commercialization and industrialization. The process of crushing large pieces of material into small particles is called crushing. The machine used for crushing is called crusher. In coal preparation plant, crushing operation is mainly suitable for the requirements of selected particles.

If the high-speed equipment of coal separator is selected, the productivity can be improved, but the possibility of unsafe factors is increased. The selection of coal preparation machine should be based on the use conditions, environment and some special requirements of the equipment, according to the product quality index processed by the selected equipment, the performance structure of the coal preparation equipment itself, the physical and chemical composition of the parts, the material life of the equipment, the reliability of the safety automatic control device of the coal preparation equipment and other technical parameters.

At the same time, dialectical analysis method should be used to weigh the advantages and disadvantages of coal preparation equipment.

The higher the degree of automation of coal preparation equipment, the more complex the structure, the greater the possibility of failure of coal preparation equipment.