Fully mechanized caving hydraulic support without frame spacing to prevent roof leakage of inclined loose thick coal seams

Abstract

The invention discloses a fully mechanized caving hydraulic support with no frame spacing, which is suitable for sloping fully mechanized mining face to prevent roof leakage of sloping loose thick coal seams, and belongs to the technical field of mining hydraulic supports. Including the body of the hydraulic support, a pair of side guards are hinged left and right under the front beam or the guard plate through the hinge mechanism, so as to prevent the occurrence of gaps between the front beams or the guard plates between the adjacent two hydraulic supports The function of roof leakage phenomenon; the upper part of the roof beam and the side guards of the roof beam are provided with rubber baffles to prevent the roof of the coal seam in the working face with a large inclination angle from moving along the roof beam side of the hydraulic support during the mining process of the working face due to the inclination angle. In the direction of leakage, the rubber baffle plate enables the top beam to squeeze the top plate so as to realize the function of anti-skid and anti-fall of the hydraulic support. The invention can realize the anti-skid, anti-fall and anti-leakage of the hydraulic support when the working face with large inclination angle is mined, improve the safety factor of the underground operators when working, and save the support and material cost of the coal mine enterprise.

Description

technical field [0001] The invention relates to the technical field of mining hydraulic supports, in particular to a fully mechanized caving hydraulic support with no frame spacing suitable for inclined fully mechanized mining face to prevent roof leakage of inclined loose thick coal seams. Background technique [0002] As the lifeblood of the country's economic development, the safety of its production is also particularly important in the coal industry. According to incomplete statistics, among the eight types of coal mine accidents that occurred in the country from 2010 to 2020, the number of deaths caused by roof accidents caused by roof fall, gangway, and leakage of gangue was relatively large. The slats and roof fall can easily cause the collapse of large coal and rock masses. The slats cause the area of ​​the empty roof between the front end of the support and the coal wall to expand. Under the action of the roof pressure, roofing accidents are prone to occur, resulti...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the existing problems and provide a fully mechanized caving hydraulic support without frame spacing to prevent roof leakage in inclined loose and thick coal seams, which can effectively solve the problem of loose and broken roofs in front of two adjacent hydraulic supports on inclined coal seam working faces. Problems of caving, leaking, and slipping occur between the roof beams

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