Dry Ball Mill for Cement prodution line

Dry Ball Mill is used to grind limestone, Feldspar, Gypsum stone by drying method. They are the main powder grinding equipment widely served in Cement industry, building material industry and chemical industry. It gets its name for installing discharging grid plate at the discharging end. The equipment consists of driving part, rotating part, main bearing, feeding and discharging part, lubrication part and electric control part. Successful projects all over the world attest to the competence of SBM.

Dry Ball Mill Parameter :
• Capacity: 5-137 t/h
• Feed inlet size: <25(mm)
• Manufacturer: SBM
• Application: Cement Industry
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SBM Dry ball mills for every requirement

Dry ball mills are cylindrical or conical shell rotating about a horizontal axis, partially filled with a grinding medium such as natural flint pebbles, ceramic pellets or metallic balls. The common classification of Dry ball mill is any type of mill in which mild steel or iron balls are used. In most cases the cylinder of such mill is made of alloy steel or some special type of lining. The material to be ground is added so that it is slightly more than fills of the voids between the balls (with a maximum limit of number of balls not exceeding 50% of the mill capacity for proper grinding). The shell is rotated at a speed, which will cause the pellets to cascade, thus reducing particle sizes by impact. It has been proposed that in the plastics industry the term Dry ball mill be reserved for metallic grinding media, and the term pebble mill for non-metallic grinding media. There are two different methods of comminution: autogeneous comminution where the material is pure and heterogeneous comminution where the material is mixed with heavy spheres from steel of typical diameter of several centimeters to increase efficiency. There exists much experimental knowledge on the operation mechanism of Dry ball mills and on the comminution of granular matter in these mills. To increase efficiency of the mill one would have to tune the rotation velocity so that the average collision velocity becomes maximum.

 

Our Dry Ball Mill have been exported to more than 130 countries, Nigeria, India, South Africa, Indonesia, Saudi Arabic, Vietnam, ect. Our Dry Ball Mill widely used in global Grinding and Beneficiation industry. SBM is the biggest Dry Ball Mill manufacturing company in China, we have 30 years Professional Quarry and Beneficiation equipments Manufacturing Experience. Authentication by 200 thousands Customers, Certificated by ISO9001 : 2000 Quality and Managementand EU CE .

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