Coal is a very valuable resource in the energy sector and is used as a fuel for various devices. However, before coal can be used, it must first be processed using crushers. Crushers are designed to break large chunks of coal into smaller pieces that can be transported more easily and burned more efficiently. In this article, we will discuss the different types of crushers that are used to process coal.

1. Jaw Crushers:

Jaw crushers are the most commonly used primary crushers in the mining industry. They are designed to crush materials with a compressive strength of up to 320MPa. Jaw crushers work by compressing the material between two surfaces, one of which is a fixed jaw and the other is a movable jaw. The movable jaw exerts pressure on the material, crushing it against the fixed jaw until it is small enough to pass through the gap between the two jaws.

2. Impact Crushers:

Impact crushers are used to crush materials that are not very hard, such as coal and limestone. They work by using a vertical shaft that spins at high speed to strike the material. As the material is struck, it breaks apart and is thrown against the walls of the crusher. This process continues until the material is small enough to pass through the bottom of the crusher.

3. Cone Crushers:

Cone crushers are used to crush hard materials such as granite, basalt, and ores. They are designed to operate at a fixed or variable speed and are used to reduce the size of the material by squeezing it between a mantle and a concave bowl. The material is crushed as it is forced against the mantle and is then released, allowing it to fall back into the bowl where it is crushed again.

4. Hammer Crushers:

Hammer crushers are used to crush materials that are not very hard, such as coal and limestone. They work by using a hammer to crush the material against a plate. The material is fed into the crusher and is initially crushed by the hammer. As the material is crushed, it is forced against the plate and is further crushed until it is small enough to pass through the gap between the plate and the hammer.

In short, crushers play an essential role in the processing of coal. Different crushers are used depending on the size of the coal and the required output size. Jaw crushers are commonly used for primary crushing, while cone crushers and impact crushers are used for secondary and tertiary crushing. Hammer crushers are also used to crush coal but are generally used for softer materials. By understanding the different types of crushers available, you can choose the one that is best suited for your needs.