Coal mine return air crossheading roadway non-repetitive supporting outfit

Abstract

The invention belongs to the technical field of coal mine underground support, and particularly relates to coal mine return air crossheading roadway non-repetitive supporting outfit. The problem thatduring existing coal mine underground temporary support, repetitive supporting exists, and the damage to a top plate is accelerated to different degrees is solved. The coal mine return air crossheading roadway non-repetitive supporting outfit comprises a single-straddle-type supporting device and a crossheading supporting device carrier, the single-straddle-type supporting device comprises a crossbeam and a stand column which can stretch out and draw back, the crossheading supporting device carrier comprises a trackless explosionproof rubber-tied vehicle, a lifting platform and a rotating andclamping device, the rotating and clamping device is arranged on the lifting platform and can act on the single-straddle-type supporting device, through lifting, the single-straddle-type supporting device is connected with the top and separated from the top, after being separated from the top, the single-straddle-type supporting device is rotated by a limited angle and clamped through the rotating and clamping device, and then the crossheading supporting device carrier carries out carrying. By means of the coal mine return air crossheading roadway non-repetitive supporting outfit, a reliableand flexible supporting condition is created for safely and efficiently mining of a fully-mechanized coal mining face, non-repetitive supporting of the top plate can be achieved, and the integrity ofthe top plate is guaranteed; meanwhile, the coal mine return air crossheading roadway non-repetitive supporting outfit is significant in completing the mechanized mining technology of a tunneling face, increasing the mining speed and improving the production efficiency.

Description

technical field [0001] The invention belongs to the technical field of underground support in coal mines, and in particular relates to a complete set of non-repeated support equipment for a coal mine return air channel roadway. Background technique [0002] The "Coal Mine Safety Regulations" stipulates that within 20m of the connection between all safety exits and roadways in the coal mining face, the support must be strengthened; in the comprehensive mechanized coal mining face, the height of the roadway within this range shall not be lower than 1.8m, that is, coal mining Advance support must be adopted within 30m of both sides of the working face. At present, there are roughly three types of advance support in the two parallel grooves of the coal mining face: the traditional single hydraulic prop support method; the integral advance support hydraulic support; the split advance support group: [0003] 1. The support method of single hydraulic prop and metal hinged top beam...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of repeated support in the existing underground temporary support of coal mines, which accelerates the damage to the roof to varying degrees, the present invention provides a complete set of equipment without repeated support for the return air channel roadway of the coal mine

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