A kind of multi-stage vibrating screening equipment for coal gangue separation

Abstract

The invention provides a multi-stage vibrating screening device applicable to coal gangue separation. The device comprises a supporting mechanism, a conveying box, a conveying mechanism, a dischargingmechanism, a feeding mechanism and a transmission mechanism, wherein the discharging mechanism comprises a mounting box and a pulverized coal box; the feeding mechanism, comprising a first screeningnet, a base and a box body, is mounted on the top part of the pulverized coal box; the transmission mechanism comprises second screening nets, connecting plates, a screening frame, a driving plate, aconnecting shaft and a chute; the screening frame is obliquely glidingly connected into the mounting box; half of the screening frame is of a solid structure, and another half of the screening frame is oppositely welded with a plurality of groups of second screening nets and connecting plates. The device is capable of screening coal gangues in a multi-stage manner, and is high in linkage performance; blockage is avoided; and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of coal gangue screening, in particular to a multi-stage vibration screening equipment for coal gangue sorting. Background technique [0002] Coal gangue is solid waste discharged during the coal mining process and coal washing process. It is a black-gray rock with low carbon content and harder than coal that is associated with coal seams during the coal formation process. Including the excavation gangue during the roadway excavation, the gangue extracted from the roof, floor and interlayer during the mining process, and the gangue picked out during the coal washing process. [0003] Existing gangue screening is directly carried out by X-ray sorting, which is very likely to cause blockage, reduce the sorting accuracy, affect normal production, and even cause major safety accidents. The large-sized raw coal particles and gangue mixed in the raw coal are crushed. In view of this, the present invention propose...

AI Technical Summary

Problems solved by technology

[0003] Existing gangue screening is directly carried out by X-ray sorting, which is very likely to cause blockage, reduce the sorting accuracy, affect normal production, and even cause major safety accidents. The large-sized raw coal particles and gangue mixed in the raw coal are crushed. In view of this, the present invention proposes a multi-stage vibrating screening equipment for coal gangue separation, which has the following characteristics:

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