Working principle and structural characteristics of straight ball mill for mining

A straight ball mill for mining is a ball mill with a cylindrical body with the main structure.This kind of ball mill is widely used in the mining and mineral processing industry, and its advantages are stable operation, strong processing capacity, and relatively uniform particle size.This article mainly introduces you to the working principle and structural characteristics of the straight ball mill for mining.

The working principle of a straight ball mill for mining

The straight ball mill for mining is a horizontal cylindrical rotating device with gear transmission on the outer edge.During work, the material enters the interior of the ball mill evenly from the feeding device through the feeding hollow shaft spiral.When the cylinder of the ball mill rotates, the steel balls in the cylinder are brought to a certain height due to inertia and centrifugal force, as well as friction with the wall of the cylinder, and the material and the grinding medium are thrown off at the same time. Under the action of impact and grinding, the material can be crushed.

During the grinding process, the speed of the cylinder plays a key role in the grinding effect.The speed of the grinding speed should be adjusted according to the hardness of the grinding material. For some ores with higher hardness, a higher speed is required to achieve a better grinding effect. If it is an ore with low hardness, the requirements for the speed are not so high, so the speed can be adjusted lower.

Characteristics of straight ball mill for mining

Structural features

The straight ball mill for mining is composed of the main parts such as the feeding part, the discharging part, the rotary part, and the transmission part. This structure has many advantages.The advanced design of the feeding department can ensure that the material enters the ball mill smoothly and reduce the occurrence of clogging.The discharge department can discharge the ground material in time to avoid over-crushing and improve production efficiency.

The hollow shaft is an important part of a straight ball mill for mining. It is generally made of cast steel, which has high strength and stability.The cast steel material enables the hollow shaft to withstand huge loads and ensures the safety of the ball mill during operation.At the same time, the design of the inner lining that can be removed and replaced provides convenience for the maintenance and maintenance of the equipment.When the lining is worn out, it can be replaced in time to extend the service life of the ball mill.

The lining of ball mills is generally made of wear-resistant, high-temperature-resistant and corrosion-resistant materials, such as high-chromium cast iron, high-manganese steel, rubber, ceramics, etc.Different lining materials have different characteristics. The high-chromium cast iron lining has excellent wear resistance and can withstand the impact and friction of materials and steel balls; the high-manganese steel lining has good toughness and impact resistance; the rubber lining has good noise reduction and shock absorption effects; the ceramic lining has the characteristics of high temperature resistance and corrosion resistance.Users can choose the appropriate lining material according to different production needs.

Product features

Large-diameter double-row spherical roller bearings are selected to replace the original tile alloy plain bearings, which greatly reduces friction and reduces energy consumption.According to statistics, after adopting large-diameter double-row spherical roller bearings, the energy consumption of the ball mill can be reduced by about 20 to 30%.Moreover, the mill is easier to start and the production efficiency is improved.

The end cap structure of the old-fashioned ball mill is retained, and the large-caliber inlet and outlet ports make the processing capacity large.Taking the MQG0921 mining straight ball mill as an example, the feed particle size can reach 0-25mm and the output is 0.5-1.3t/h, which can meet the needs of large-scale production.

For mining straight ball mills with a cylinder diameter of less than 2m, an integral frame can be selected, with high installation accuracy, easy civil construction and installation, and short cycle times.This saves users a lot of time and cost, and improves the speed at which the equipment is put into use.

In short, mining straight ball mills have always been widely used in the mineral processing industry. They can handle a variety of materials such as rare metals, metal minerals, and non-metallic minerals, and have the characteristics of reasonable structure design, long service life, easy installation, and stable operation.If you need a straight ball mill, please contact us.