Continuous two-stage crushing type crusher

Abstract

The invention discloses a continuous two-stage crushing type crusher, and belongs to the field of crushing devices. The continuous two-stage crushing type crusher comprises a crusher main box body (8), a first-stage crushing hammer group (5) and a second-stage crushing hammer group (6). The first-stage crushing hammer group (5) and the second-stage crushing hammer group (6) are rotationally arranged in the crusher main box body (8). The first-stage crushing hammer group (5) is arranged on the side close to a crusher feeding groove (7), and the second-stage crushing hammer group (6) is arrangedon the side close to a crusher discharging groove (4). The first-stage crushing hammer group (5) and the second-stage crushing hammer group (6) are connected with a power device for driving the first-stage crushing hammer group (5) and the second-stage crushing hammer group (6) to work. The coal and gangue obtained through second-stage crushing has the particle size of 300 mm or below; coal blocks can be blocked to a certain extent by the second-stage crushing hammer group, large coal blocks passing through the first-stage crushing hammer group can be crushed under the impact of the first-stage crushing hammer group, and therefore the crushing effect can be effectively improved. The crusher is good in crushing effect, compact in structure and high in coal throughput.

Description

Technical field [0001] The continuous two-stage crusher belongs to the field of crushing equipment. Background technique [0002] The coal mined from the existing coal mining face is transported by a scraper to the bridge transfer machine. The bridge transfer machine is equipped with a hammer crusher. During operation, the transfer machine transfers the hammer crushed coal and gangue to the trough On the belt conveyor, due to the certain defects of the existing hammer crusher, the upper and lower hammer heads have two sets of hammer heads, which have great impact. However, long flat coal and gangue often pass through the transfer scraper and bridge type The transfer point of each belt conveyor has a certain drop between the transfer machine and the conveyor belt conveyor. The large coal and large gangue rocks on the transfer machine have jamming failures and have a greater impact on the conveyor belt. Groove belts will cause great damage and subsequent damage to the transportati...

AI Technical Summary

Problems solved by technology

The present invention arranges two breaker groups in the main box of a crusher, which not only solves the problem of complex structure and high cost of two-stage crushing in the past, but also solves the problem that the two-stage breaker groups pass under the first breaker group. The lumps of coal are blocked to a certain extent. At this time, the large lumps of coal passing through the first-level breaker group will be crushed by the impact of the first-level breaker group, which can effectively improve the crushing effect.

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