Mining machinery, as a basic industry of the national economy, was driven by the rapid development of the domestic investment economy in the first ten years of this century, coupled with the growth in demand for steel, coal, cement, and non-ferrous metals brought about by the process of global economic integration. The machinery industry is developing rapidly.

The grinding method of ball mills can be divided into dry grinding and wet grinding. Among them, wet grinding can be used in a wide range. Most minerals can be used in wet grinding, and dry grinding can be used in a smaller range, but some raw materials can only be used. Dry grinding.

The key equipment for dry grinding of ball mill is dry type ball mill. The structure of dry type ball mill is relatively complicated. Wet type ball mill must be equipped with induced draft equipment, dust exhaust pipe and dust removal equipment. It is decided by its principle. The dry grinding of the ball mill stipulates that the raw materials in the mill are dry, and no water or other liquids are allowed. The raw materials are ground by the material of the ball mill in the mill, and the products exceeding the regulations are driven out by the wind or cyclone.

The key equipment for wet grinding of the ball mill is the wet ball mill. The structure of the wet ball mill is simple and does not need to add too many auxiliary parts. Water or absolute ethanol must be added during the whole grinding process. During the grinding work, the bulk raw materials will be in the ball mill material. Cracks are caused by the impact and milling effect of the powder, the cracks gradually increase and aggravate, and finally the raw materials are separated from the cracks, which exceeds the effect of grinding the bulk raw materials.

The raw materials and grinding minerals are mixed together, collide with each other, and extruded. If it is dry test grinding, because there are no chemical substances in the cracks, it is very likely that the cracks will be squeezed smaller and smaller during the entire process of extrusion. This will result in high efficiency and low grinding efficiency, and the separation of raw materials is very slow; and if it is wet test grinding, when small cracks appear in the massive minerals, the circulation of water will drive the flowing water into the cracks, which will isolate it. After the impact of grinding minerals and extrusion molding, cracks will gradually increase, and finally the bulk raw materials will be smashed, so the high efficiency of wet grinding.

In addition to the high efficiency of wet grinding, it also has the characteristics of low noise, fine and uniform particle size distribution, and less air pollution during work. The advantages of the dry grinding of the ball mill depend on the choice of the grate flat-type grinding tail feed. The feed is faster and smoother, and the problem of belly bulging is not easy to occur. The head is not cooled by water and has a long service life.

The left and right are talking about the advantages of dry grinding and wet grinding, and there are disadvantages. The disadvantage of dry grinding is that there will be blind areas in the mill. If the raw materials enter the blind areas, they will not be able to go out without the push of water, and they will not be ground. The disadvantage of wet grinding is that after grinding, the whole process of drying and drying must be carried out, which increases the cost.