Jaw crusher is a crushing equipment commonly used in the mining industry for coarse crushing. It can be used to crush all materials with compressive strength below 320Mpa. Jaw stone crushers are widely used in the crushing of various ores and bulk materials in mining and smelting, building materials, highways, railways, water conservancy and chemical industries. Recently, our customers have reported that the jaw crusher equipment has returned materials when it is working. Below I will introduce you to the reasons and solutions for the return of materials in detail.
Reasons for the return of jaw crusher machine
1. Unbalanced forces on the material
The vertical force of the material to be crushed in the crushing cavity is prone to be unbalanced, and under the action of the upward component of force, the phenomenon of material return is likely to occur.
2. The width of the discharge opening is too large
For jaw crushers of the same specification, the larger the width of the discharge opening, the easier it is to return materials. During the crushing process of the jaw crusher device, the material is in direct contact with the jaw plate, causing friction. When the jaw plate wears more severely, the possibility of return material phenomenon is greater.
3. The size of the material to be broken is too different
When the size of the material to be broken by the crusher is too different, it is easy to return material the phenomenon, which not only reduces the production efficiency but also easily causes the damage of the machine, so we should try to avoid the occurrence of the return phenomenon.
The solution to the return material of the jaw stone crusher
1. According to the condition of the material, choose a crusher of appropriate specifications.
2. When the jaw plate of the stone jaw crusher is worn, it is easy to return the material, and the jaw plate should be repaired or replaced in time.
3.When the particle size of the material is too different, we should screen it first; use a coarse jaw crusher machinery to preprocess the material, and then use a fine jaw crusher for finishing, so as to ensure the processing requirements of the material.
4.Add a wedge-shaped backing plate to the joint surface of the movable jaw and the fixed jaw plate to reduce the angle between the two jaw plates, so that the angle between the two jaw plates is less than twice the friction angle, and the phenomenon of material return is eliminated.
5.A protective plate can be welded above the inlet of the jaw rock crusher to prevent the material from flying out of the inlet and endangering the personal safety of the operator.
The above are the reasons and solutions for materials in the jaw crusher. The Nile Group has a variety of stone crushers to meet your diverse needs. If you have any questions about your crusher, you can consult us, and we will arrange professional technicians to explain it for you.
