Compared with rock grinder (stone flour mill), the coal mill we make is with reasonable structure, high grinding efficiency and is the ideal equipment for coal processing. It is featured with reliable operation, continuous operation and large production capacity. The coal is made of pulverized coal by the coal mill mainly through the three ways of crushing, shredding and grinding. It has high efficiency and high output.And we also have other mining machines, such as stone crushing plant, desulfurization gypsum drying machine, china dryer, granite crusher and hammering machine and so on. Among the three ways, the energy consumption of the crushing process is the smallest while that of the grinding process is the most. The milling process of the various coal mills contains two or three ways of the above-mentioned. Coal mill is mainly used in the coal milling industry. In the operation of the coal mill, drum dryer, it is inevitable to generate the noise. The following is the ways to control the noise of the coal mill. Firstly, to reduce the noise at the sound source and there are many ways from this aspect such as the damping acoustic treatment in the cylinder; the second is to control the noise from the noise transmission routes: it mainly includes the development of the fixed acoustic enclosures or assembled acoustic enclosures with sound insulation. Working process of fote machinery coal mill is as follows: raw materials are sent to grind mill through feeder and rotate with mill cylinder after the hot air entering the grinding mill, then coal and hot air carry out heat exchange. While the coal is crushed and ground, fine pulverized coal will be discharged from the discharge opening of mill driven by hot air. The grinding process of the coal is the process that the coal is crushed and its surface area is in increase. To add the new surface area must overcome the binding force between solid molecules, which requires the consumption of energy. china sand washer:...