Dry Ball Mill

Dry Ball Mill

Dry ball mill is a grinding equipment used to deal with dry materials.




Dry ball mill is widely applied in mineral processing, building materials, metallurgy, chemical engineering industry. Most materials processed is metal in mineral processing.

Product improvement

Xinhai dry ball mill is horizontal type and tubular running device, which has two warehouses. This machine is grid type and its outside runs along gear.

♦ Advantages

Strong adaptability to the material, continuous production, and easy to adjust the fineness of grinding product;

Straight tubular designed at the discharge port, equipped with air-inducing device, which has a good dedusting effect;

Dy ball mill can be used for one-pass grinding or close-circuit grinding that is composed of powder concentrator;

Overflow dry ball mill and grid dry ball mill can be selected according to the ore property and discharge way;

The output material after the dry grinding is the qualified material;

Dry ball mill can be divided into levorotary type and dextral type according to the grinding process;

Simple structure, easy to maintain; the hollow shaft adopts steel casting, which make the linear replacement easier.

Note: The feed water of dry ball mill should not be too high, otherwise the material is easy to bond, thus resulting in the difficulty of ore discharge.

♦ Application

Dry ball mill is mainly used for the grinding of finished product and raw materials in the cement plant, and also used for various ores and other grindable materials of metallurgy, chemical industry, electric power, etc. The required materials must be dry, so the suitable materials of dry ball mill mainly include cement, silicate products, new building materials, refractory materials, fertilizer, black and non-ferrous metals, glass and ceramics.

♦ Working Principle

The materials are uniformly sent to the first chamber of dry ball mill by the feeding device through the feeding hollow shaft. The first chamber of dry ball mill contains stepped lining board or corrugated lining board, and steel balls of different specifications. The centrifugal force generated by the cylinder rotation will bring the steel balls to a certain height and then drop down, which will have a pounding and grinding effect on the materials. After the rough grinding is finished in the first chamber of dry ball mill, the materials will enter into the second chamber through the single-wall partition, which is lined with flat lining board and steel balls to further grind the materials. The powder material is discharged through discharge grates, then the grinding operation is completed.

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