What is the role of pre-screening and screening?

The screening operation before the ore enters the crusher is called pre-screening. It can pre-screen fine particles so that the crushed ore does not enter the crusher, thereby increasing the crusher's production capacity and preventing over-grinding and reducing equipment wear and power consumption. When dealing with mud and wet ore, the use of pre-screening can avoid or reduce the blockage of the crusher discharge port, which is conducive to the normal operation of the crusher.

The so-called inspection screening operation is to screen the ore discharged from the crusher in a crushing section, so that the product on the sieve (greater than the specified particle size) is returned to the crusher for the crushing operation, and the product under the sieve is the section. Broken qualified products. Checking the sieve can ensure the crushing of the final product particle size, and will not produce a large ore size, which has a direct impact on the stable production of the mill.

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