Jaw crusher is one of the important equipment in various production lines and mining work. The main features of jaw crusher are relatively strong crushing force, relatively simple structure, convenient maintenance, uniform particle size, and reliable operation. Widely used in many industries such as mining, smelting, building materials, roads, railways, water conservancy and chemical industries.
Uneven discharge particle size is one of the failures that jaw crushers often encounter in the production process. Let’s analyze the reasons for the uneven discharge of jaw crushers.
1. The displacement of the jaw plate. After the position of the jaw plate changes, the tooth top is opposite to the tooth top, and the problem can be solved by adjusting the jaw plate.
2. The particle size of the material is too large and too hard. When there are materials with too large or too hard particles in the crushing chamber, the particle size segregation of the materials in the crushing chamber of the jaw crusher will be seriously segregated, and the input materials cannot be completely crushed, resulting in uneven discharge.
3. The material contains too much water. When the material with too much water enters the crushing cavity of the jaw crusher, it will stick to each other and cause the material in the crushing cavity to be blocked, which reduces the crushing ability of the equipment for the material, resulting in uneven discharge.
4. Too much material is fed. When too much material is put into the crushing cavity, it is easy to cause the material to be blocked in the crushing cavity, occupying part of the space in the crushing cavity, so that the material crushing space is reduced, and the particle size of the crushed material may be uneven.
5. The size of the ore discharge port is inappropriate. When the size of the discharge port of the jaw crusher is improper, it is easy to cause the crushed materials to be discharged too late, resulting in blockage of the materials, affecting the crushing of the materials, aggravating the blockage of the materials, and causing uneven crushing of the materials.
6. The working site voltage is too low. When the working voltage of the crushing site is too low, it cannot provide production conditions for the normal crushing of the jaw crusher, and the crushing power is insufficient, resulting in uneven particle size of the crushed product.
7. Wear between parts. The gap between the movable jaw and the bearing is too large after wear, causing the outer ring of the bearing to rotate relative to each other. At this time, it is necessary to replace the bearing, the movable jaw or take other feasible measures to reduce the gap between the movable jaw and the bearing.
When the jaw crusher works for a period of time, regular maintenance must be carried out. If the broken parts are found to be worn, the movable jaw and bearing should be replaced immediately to make the crushing particle size uniform.
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