Crushing bottom chute is a key component in the crusher, especially plays an important role in the coal mine crusher. The following is a detailed introduction to the crushing chute:
Function and role
Crushing chute is the carrier of friction for the scraper chain to transport coal and gangue, and it is also the impact force of coal and gangue in the crushing process. In the working process of the crusher, the crushing bottom groove plays a key role, which is not only the running track of coal and gangue, but also bears the impact force of the hammer on the coal and gangue, and transmits these forces to the corresponding parts of the crushing bottom groove.
Design features
1. Vulnerability: Since the crushing chute needs to bear large friction and impact in the working process, it is one of the vulnerable parts in the crusher and needs to be checked and replaced regularly.
2. Integral structure problem: The traditional crushing chute is mostly of integral structure, which is difficult to disassemble, time-consuming and costly to replace.
3. Split design: In order to solve the problem of monolithic structure, some new crushing chutes adopt split design. This design allows timely replacement of broken parts, saves resources, reduces production costs and improves production efficiency. Split crushing chute usually consists of base, crushing chute, side plate and coupling plate, etc. The parts are connected by bolts and other fasteners, which is easy to disassemble and maintain.
Structural Composition
Take the new split crushing chute as an example, it is mainly composed of the following parts:
- Base: the basic part to support the whole crushing chute.
- Crushing trough: the main crushing area of coal and gangue, and also the main part to bear the impact of the hammer.
- Side plate: standing on both sides of the crushing tank, play a role in fixing and supporting the crushing tank.
- Coupling plate: used to connect the base, crushing chute and side plate to ensure the stability of the whole crushing chute.
In addition, some new crushing chutes are also designed with movable base plate, lower support block, upper pad and other parts to further improve the durability and easy maintenance of the crushing chute.
Maintenance
In order to extend the service life of the crushing chute and improve the overall performance of the crusher, it is necessary to regularly maintain and repair the crushing chute. Specific measures include:
- Regularly check the wear and tear of the crushing chute and the damage of other wearing parts, and timely replace the wearing parts that have reached the limit of breakage.
- Do not force to use the damaged crusher, to avoid the safety coefficient decrease and increase the accident rate.
- Strictly in accordance with the relevant provisions of the formulation of scientific and reasonable safety operating procedures to ensure the normal operation of the equipment.
To sum up, the crushing chute is one of the key components in the crusher, and its design, manufacture, installation and maintenance all directly affect the overall performance and service life of the crusher. Therefore, when purchasing and using the crusher, the quality and performance of the crushing chute should be paid full attention to.
