Non-frame spacing fully-mechanized hydraulic support and method for preventing roof leakage of inclined loose thick coal seam

Abstract

The invention discloses a non-frame spacing fully-mechanized hydraulic support and method for preventing roof leakage of an inclined loose thick coal seam, and belongs to the technical field of mining hydraulic supports. The non-frame spacing fully-mechanized hydraulic support comprises a hydraulic support body, wherein a pair of side guard plates is hinged to the left and the right of the lower portion of a front beam or a face guard of the hydraulic support body through hinge mechanisms respectively, so that the function of preventing the roof leakage phenomenon caused by the fact that a gap is formed between the front beam or the face guard between two adjacent hydraulic supports in a matched mode is achieved; and partition plates made of rubber are arranged on the upper portion of a top beam and the side guard plates of the top beam, so that the situation that a coal seam roof of a large-inclination-angle working face leaks gangue in the lateral direction of the top beam of the hydraulic support in the working face mining process due to the inclination angle is prevented, the partition plates made of the rubber enable the top beam to be capable of squeezing the roof, and therefore the anti-skid and anti-falling functions of the hydraulic support are achieved. According to the non-frame spacing fully-mechanized hydraulic support and method, the anti-skid, anti-falling and gangue leakage prevention functions of the hydraulic support can be achieved in the large-inclination-angle working face mining process, the safety coefficient of underground operation personnel in the working process is increased, and the support and material cost of coal mine enterprises is saved.

Description

technical field [0001] The invention relates to the technical field of mining hydraulic supports, in particular to a fully mechanized caving hydraulic support without frame spacing and a method for preventing roof leaks in inclined loose thick coal seams in inclined fully mechanized mining working faces. Background technique [0002] The coal industry is the lifeblood of driving the country's economic development, and the safety of its production is also particularly important. According to incomplete statistics, among the 8 types of coal mine accidents that occurred across the country from 2010 to 2020, the number of deaths caused by roof accidents caused by roof fall, chipping, gangue leakage, etc. was relatively high. The slabs and roof caving can easily cause the collapse of large coal rock mass. The slabs cause the expansion of the empty roof area between the front end of the support and the coal wall. Casualties pose a huge threat to the production of the working face...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the existing problems, to provide a fully mechanized caving hydraulic support without frame spacing and a method for preventing roof leakage in inclined loose and thick coal seams. Problems of caving, leaking, and slipping occur between side panels and at the top beam

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