Scalping screens are mainly used in the coal industry to grade coal and screen the size of coal blocks. Scalping screens can be used in coal mining, crushing, screening, coal washing, and other links in the entire coal production process. Scalping screens are not only used in the coal industry, but also in metallurgy, mining, building materials, electric power, chemical industry, refractory materials and other industries for screening, filtering and grading.

The scalping screen is used to screen coal slime to reduce the fines of coal pollution during the dehydration process. Coal preparation plant slime with high ash content, improve the power spray washing to remove part of the fine slime in water, which is called desliming screening. It is used to check the dense media for coal preparation in the central coin medium, the media system’s mold to reduce the separation of coal pollution. In order to re-check the mild coal preparation, the medium and heavy coal preparation products are screened on the edge of the water jet heavy machinery to improve the product quality and separation quality.

There are sieve holes of certain shapes and sizes on the screen surface of the vibrating screen. Usually ,two products can be obtained on one screen surface. The material remaining on the screen surface is called the oversize material, and the material passing through the screen surface is called the undersize material. When screening on several sieves with different screen hole sizes in sequence, products of different particle size grades can be obtained. The number of products obtained by screening is always one more than the number of screen surfaces.

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