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Intermittent ball mill

Intermittent ball mill

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Product introduction

Intermittent ball mills play an important role in the fields of cement, silicate products, building materials, etc. It is a common equipment for grinding and processing various materials. This equipment has many advantages and more distinctive features. It plays an important role in the beneficiation production line. An important role, it is a piece of equipment with high demand in the mining field.


The intermittent ball mill is mainly composed of cylindrical barrel, end cover, bearing and transmission gear ring and other components. Each component is complementary and inseparable.

Working principle

The intermittent ball mill is a horizontal cylindrical rotating device with outer gear transmission, two bins, and a grid-type energy-saving ball mill. The material enters the first bin of the mill evenly through the feeding device through the hollow shaft of the feeding device. The bin has a step liner or a corrugated liner with steel balls of different specifications. The rotation of the cylinder generates centrifugal force to bring the steel balls to a certain height. After falling, it has a heavy blow and grinding effect on the material. After the material reaches the rough grinding in the first warehouse, it enters the second warehouse through the single-layer partition board. The warehouse is lined with flat liners and steel balls to further grind the materials. The powder is discharged through the discharge grate plate to complete the grinding operation.

Grinding process

The grinding operation of the intermittent ball mill is carried out in the cylinder. When the cylinder rotates, it is taken up and raised to a certain height. Due to the gravity of the steel ball, it finally falls along a certain track. The steel ball in the area is subjected to two forces: one is the force applied to the steel ball from the tangential direction when rotating; the other is the force symmetrical to the diameter of the steel ball but opposite to the above force. It is caused by the steel ball sliding down due to its own weight. The above two forces will form a pair of force couples for the steel balls. Because the steel balls are squeezed between the cylinder and the adjacent steel balls, the force couple will cause different friction between the steel balls. When the ball revolves with the axis of the cylinder, it falls from the top to the bottom in the area, and then it has a strong impact on the ore in the cylinder in the area, breaking the ore. Therefore, the ore in the barrel of the ball mill is mainly ground by the action of the grinding peeling force, impact force and squeezing force.

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