How does Raymond Mill (Pulverizer) Work?

The Raymond Mill(Pulverizer) is an excellent grinding device for materials used in the fields of building materials, mining, metallurgy and chemical industry which is not flammable and non-explosive as well. Such materials include Limestone, calcite, barite, dolomite, potassium feldspar, marble, talcum, gypsum, kaoline, medical stone, rock phosphate, manganese ore, iron ore, glass, ceram, active carbon, carbon black, fireproof materials, heat preservation materials, chemical materials and so on.

Properties of Materials to be grinded	Value
Hardness	< 7 in Moh's scale
Humidity	< 6 percent
End products granularity	adjusted from 30 to 325 meshes

At first required materials to grinded enter the grinding chamber of the main frame, the grinding roller swings outward and presses closely upon the grinding ring due to the centrifugal force generated by the rotation of the main shaft. The blade carries materials to the space between the grinding roller and grinding ring, and materials are ground as the grinding roller rolls. 

After being ground, the powder is selected by classifier via the cycle wind of the blower and the rough powder will be back to the grinding chamber for regrinding. The qualified powder is brought into the powder collector together with airflow. The powder comes out as end products while the airflow goes back to the powder collector in cycling to make the machine work normally. The remained airflow comes out after purification by dust filter.