Mechanical extending-cross frame outlet channel device for mining roadway working face

Abstract

The invention discloses a mechanical extending-cross frame outlet channel device for a mining roadway working face. The mechanical extending-cross frame outlet channel device comprises a hydraulic bracket placed in a roadway; the top of the hydraulic bracket supports a roadway roof; a protection net is laid on the roadway roof; anchor rods and anchor cables are further arranged at the top, from the free end of a top arm of the hydraulic bracket to the side, away from the hydraulic bracket, of a roof, of the roadway roof, wherein the anchor rods and the anchor cables are fixedly connected withthe roof; and the anchor rods are fixedly connected to the roof through trays, and the anchor cables are located between the adjacent anchor rods. By adopting the technical scheme, the roadway roof uses the anchor rods, the anchor cables and the protection net to cooperate with the hydraulic bracket to support the roadway mining space, compared with a traditional technology, consumption of supportmaterials of logs or steel plates is greatly reduced, meanwhile, using of single-body supporting columns is reduced, the labor intensity is relieved, the protection net is an elastic support, and thesafety of recovery operation of the fully mechanized coal mining face is guaranteed.

Description

technical field [0001] The invention belongs to the field of coal mining, and more specifically, the invention relates to a channel device for a mechanized brush expansion frame in a working face of a mining roadway. Background technique [0002] The harvesting of the fully mechanized mining face is an important part of coal mining, which directly affects the safety, output and efficiency of the mine working face; the safe, economical and fast out-of-shelf channel support is the basis for the smooth withdrawal of the working face equipment; especially For coal seams with large undulations and working faces with high gangue content, the retraction of the working face equipment in the prior art is that when the fully mechanized mining face is 10m away from the working line, the roof net is laid, and the last 3m is blasted with hand picks. For coal side expansion, the coal side uses round logs and single support to erect wooden sheds or uses steel plates and single support to e...

AI Technical Summary

Problems solved by technology

[0002] The harvesting of the fully mechanized mining face is an important part of coal mining, which directly affects the safety, output and efficiency of the mine working face; the safe, economical and fast out-of-shelf channel support is the basis for the smooth withdrawal of the working face equipment; especially For coal seams with large undulations and working faces with high gangue content, the retraction of the working face equipment in the prior art is that when the fully mechanized mining face is 10m away from the working line, the roof net is laid, and the last 3m is blasted with hand picks. For coal side expansion, the coal side uses round logs and single support to erect wooden sheds or uses steel plates and single support to erect iron sheds to obtain support retraction and transportation space; this operation method is subject to geological conditions, construction methods and support. Due to the limitation of protection form, the preparation process is cumbersome, the construction period is long, the cost of material input is high, the labor intensity is high, it is not good for the protection of electromechanical equipment, and there are great safety hazards

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