Screening device with multi-stage separation function for coal mine

Abstract

The invention relates to the technical field of coal screening, in particular to a screening device with a multi-stage separation function for a coal mine. The technical problems that an existing screening machine only screens coal briquettes according to the sizes of the coal briquettes, screening work of the coal briquettes of different shapes cannot be completed, and pulverized coal generated in the screening process cannot be treated are solved. According to the technical scheme, the screening device with the multi-stage sorting function for the coal mine comprises a screening shell, an electric conveyor is installed on the upper side of the right portion in the screening shell, an upper screening mechanism is installed on the upper portion in the screening shell, and a lower screening mechanism is installed on the lower portion in the screening shell. Multi-stage screening of coal briquettes is completed through cooperation of the first screening plate and the second screening plate, screening work of the coal briquettes in different shapes is achieved through cooperation of a special-shaped frame on the first screening plate and a rectangular through hole in the special-shaped frame, meanwhile, the screening efficiency of the coal briquettes is improved, pulverized coal generated in the screening process of the coal briquettes is filtered through a purification mechanism, and the screening efficiency of the coal briquettes is improved. And the pulverized coal is prevented from drifting in the air.

Description

technical field [0001] The invention relates to the technical field of coal screening, in particular to a screening device with multi-stage separation function for coal mines. Background technique [0002] Power generation in thermal power plants uses combustibles as fuel to produce electricity, while coal is mostly used for combustibles in thermal power plants. When generating electricity through coal, the size of the coal blocks is screened. [0003] When screening coal blocks, the coal blocks are usually poured into the existing screening machine, and the coal blocks are sorted by the existing screening machine, and the existing screening machine is screening the coal blocks. In the process of sorting, due to the different shapes of coal blocks, only the size of the coal blocks is screened, and the screening of coal blocks of different shapes cannot be completed, and the coal blocks of different thicknesses cannot be sorted. During the screening process, due to the small...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages that the existing sieving machine only screens the size of the coal block, cannot complete the screening of coal blocks of different shapes, and cannot process the coal powder generated during the screening process, the purpose of the present invention is to provide A screening device with multi-stage separation function for coal mines with different thickness screening

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