dry ball mill

Introduction to Dry Ball Mill

Dry ball mill, also known as dry grinding material, is a common type of ball mill compared to wet ball mill. This type of ball mill is mostly used for lime, oxidized copper ore, and ores with very fine grinding particle size requirements and other special requirements. It generally has higher requirements for sealing and environmental protection. Dry ball mill is mainly used for grinding raw materials or finished products such as cement, refractory materials, chemical raw materials, phosphate fertilizers, and grinding ores before selecting non-ferrous metals in mineral processing plants. The ground mineral powder has a small particle size and high work efficiency. While reducing unit energy consumption, the output has also been significantly increased. Moreover, due to the unique design technique adopted by the dry ball mill, the wear resistance of the body has been greatly improved, saving you a lot of maintenance costs.

Dry ball mill structure

The dry ball mill is mainly composed of feeding section, discharging section, rotating section, transmission section (reducer, small transmission gear, motor, electric control) and other main parts. The hollow shaft is made of cast steel and the inner lining can be replaced. The rotating large gear is processed by casting gear hobbing, and the cylinder body is embedded with wear-resistant lining plate, which has good wear resistance. The machine runs smoothly and reliably. Additionally, depending on the material and ore discharge method, dry ball mills and wet grid ball mills can be selected.

Working principle of dry ball mill

This dry ball mill is a horizontal cylindrical rotating device, which works similarly to a grid type ball mill. It has two compartments and is driven by outer gears. When the material enters the first compartment of the mill uniformly through the hollow shaft screw of the feeding device, there are stepped or corrugated lining plates inside the compartment, which are filled with steel balls of different specifications. The rotation of the cylinder generates centrifugal force to bring the steel balls to a certain height and then drop them, causing heavy impact and grinding on the material. After the material reaches rough grinding in the first warehouse, it enters the second warehouse through a single-layer partition plate. The warehouse is lined with a flat lining plate and contains steel balls for further grinding of the material. The powdered material is discharged through the discharge grate to complete the grinding operation.

Technical parameters of dry ball mill

Note: The equipment model parameters are constantly being improved. If you cannot find the required model in the parameter table, you can contact us directly. Our technicians will configure the equipment that best suits your production needs and site requirements according to your requirements.