Raw Mill

Raw material mill is used widely for grinding (both drying and grinding)  cement raw material and other materials in building material, metallurgical,  electric and chemical industries.

Sorts and Features

a. Common Raw Mill

It is used for small & medium-sized raw materials  separating system outside the mill.

b. Air-swept Mill

The feature of Air-swept mill is short and thick in shell,  wide in diameter of inlet &outlet trunion, large in grate gap area of  diaphragms between drying chamber & grinding chamber, no grate plate in mill  outlet. therefore, air speed inside of mill could reach 5m/s due to small  resistance and drying capacity is strong since large amout of hot air could get  in.

c. Outlet Discharging & Lifting Cycle Mill

Comparing with Air-swept mill, material, passing through the  drying chamber, are discharged at the outlet of grinding chamber by mechanical  way, and then fed into separator by elevator which would return the coarse  material to mill again for cycle grinding.

d. Middle Discharging & Lifting Cycle Mill

From the view of drying, it is the combination of Air-swept  Mill & Outlet Discharging & Lifting Cycle Mill; from the view of  grinding, I workssimilar to secondary stage cycle grinding system. At the front  end, it has drying chamber with high drying efficiency. Materials are fed from  mill inlet, returned material from separator are fed through mill inlet &  mill outlet into rough grinding chamber & fine grinding chamber  respectively.

Main Technical  Parameters

Some spare parts of ball  mill

ball mill  cylinder

girth gear  

ball mill  liner

ball mill end  cap

electric  system