Vertical coal mill is typically designed to process materials in medium hardness, like soft coal or bituminous coal, and it is mainly used in positive pressure pulverizing system of soft coal. It is widely used in electricity field, metallurgy sector, building material industry, chemical industry, etc. It is an ideal device that integrates crushing, drying, grinding, and grading conveying all together.

Environmental Friendly

With small vibration, low noise, and the overall sealing, the system works under negative pressure, so there is no dust going out.   (It meets the requirements of the state environmental protection.)

High Drying Ability

As the hot air inside contacts directly with the material, drying ability is higher, and it saves energy. By regulating the air temperature, it can meet requirements with different humidity.

Simple and Reliable Operation   

Firstly, it is equipped with automatic control systems, so remote control makes it easy to operate. Second, it is equipped with one device, which prevents the roller from contacting with the liner directly, and avoids the destructive impact and severe vibration.

It's from http://www.great-wall.co/products/vertical-roller-mill/vertical-coal-mill.html#.VRN4nvmUfNc.