Impact Crusher Principle And Solution To Faults

Impact Crusher Principle And Solution To Faults

The impact crusher is a machine that utilizes the high-speed impact of the plate hammer and the rebound action of the impact crusher to cause the material to be broken by the impact of the repeated double-roll crusher. The hammer is fixed on the high-speed rotating rotor, and several impact plates are arranged at different angles along the crushing chamber. When the material enters the action zone of the hammer, it is firstly crushed by the first impact of the hammer, and at the same time, the kinetic energy is obtained, and the high-speed rushing counterattacks the beneficiation equipment board. After the material collides with the counterattack plate and is broken again, it is bounced back to the action area of ??the hammer and is again impacted by the hammer.

This is repeated until it is broken into the desired particle size and discharged out of the machine. Compared with the hammer crusher, the impact crusher has a larger crushing ratio and can more fully utilize the high-speed impact energy of the entire rotor. However, due to the extremely easy wear of the hammer, it is also limited in the application of hard material crushing. It is usually used for coarse brittle materials such as coarse crushed, medium crushed or finely crushed limestone, coal, limestone and chemical raw materials. The performance of the impact crusher is unique structure, no key connection, high chrome plate hammer, unique counterattack lining, hard rock crushing, high efficiency and energy saving, the shape of the product is cubic, the size of the discharge material is adjustable, and the crushing process is simplified.

During operation, under the driving of the motor, the rotor rotates at a high speed. After the material enters, it impacts and breaks with the hammer on the rotor, and then is impact crusher to the liner to break again, and finally discharged from the discharge port. Compared with other crushers, this machine has the advantages of low cost and high efficiency. The machine is a new type of high-efficiency crushing equipment, which is characterized by small volume, simple structure, large crushing ratio, low energy consumption, large production capacity, uniform high-grain grinding of the product, and selective crushing. Very promising equipment.

Causes and elimination of problems caused by impact crushers

First, if the crusher (impact crusher) is found to be abnormally vibrating:

  1. 1. If the material is too large, you can check the feed size.
  2. 2, uneven wear, indicating that the counterattack hammer needs to be replaced.
  3. 3. The rotor is unbalanced and needs to be adjusted.
  4. 4. If the foundation is not properly handled, check the anchor bolts and strengthen them.

Second, if the crusher (impact crusher) bearing heat is found:

  1. 1, indicating the lack of oil in the bearing, need to refuel in time, of course, too much oil will make the bearing heat, must check the oil level when refueling.
  2. 2, the bearing is damaged, it is necessary to replace the bearing in time.
  3. 3, the top cover is too tight, to adjust the bolts, the appropriate degree of tightness is appropriate.

Third, if the crusher (impact crusher) is found to have too large a particle size:

  1. 1. Explain that the hammer head is worn out, and the hammer head needs to be freed or replaced.
  2. 2. The clearance between the hammer head and the counterattack plate is too large, generally adjusted to 15-20mm.
  3. 3. The excessive particle size of the feed will also affect the particle size of the discharge.

Fourth, as now the crusher (impact crusher) belt flip:

  1. 1. Describe the wear of the belt and replace the V-belt.
  2. 2. Because of the problem of belt conveyor assembly, the pulleys need to be adjusted on the same plane.
  3. 3. must pay attention to the quality of the triangle belt itself.

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