In the plasterboard industry, the Raymond mill can scatter and lift the desulphurized gypsum slag cake with water content less than 12% by drying the rotor of a hammer crusher. Moreover, it can be fully heat exchanged with the 550 ℃ hot air introduced to form the material with water content of less than 1%. The material enters the rising pipe from the exhaust pipe and is carried away by hot air into the next process. The Raymond mill can also be used in the cement industry for drying and crushing carbide slag in filter cake and environmental protection field.

The rotary rotor of the raymond mill dissolves the material, and the hot air dries the material. The airflow carries the broken and dried material to the separation chamber. The fine powder is then separated into the cyclone, and the coarse particles are returned to the hammer crusher to break again.