Hydraulic isolation support for coal mine paste filling mining

Abstract

The invention relates to a hydraulic isolation support for coal mine paste filling mining, and belongs to hydraulic supports for filling of coal mining faces. Four hydraulic support supporting columnsfor supporting a top beam is arranged between the top beam and a base of the hydraulic support, an inclined beam, a front connecting rod and a rear connecting rod are hinged between the top beam andthe base, a tail beam is hinged to the rear end of the top beam, a front beam is hinged to the front end of the top beam, a telescopic beam is embedded in the front beam, and a face guard is hinged tothe front portion of the telescopic beam; a short beam is hinged to the rear end of the top beam, and an upper isolation plate is hinged to the short beam; an isolation plate tension device is hingedto the rear portion of the base; a middle isolation plate is embedded in the upper isolation plate, a lower isolation plate is embedded in the middle isolation plate, the lower isolation plate is hinged to the isolation plate tension device, an upper isolation flexible strip is arranged at the upper end of the upper isolation plate, and a lower isolation flexible strip is arranged at the lower end of the upper isolation plate. The hydraulic isolation support has the advantages that in filling coal mining, a to-be-filled area of a coal mining face is quickly isolated and sealed, the work of manually constructing an isolation formwork is omitted, the manual labor is reduced, the safety of workers' auxiliary operation is ensured, and the production efficiency of filling mining is improved.

Description

technical field [0001] The invention relates to a hydraulic support for filling a coal mining face, in particular to a hydraulic isolation support for coal mine paste filling and mining. Background technique [0002] As one of the green mining technology systems of coal mines, the paste filling technology is mainly aimed at solving the "three downs and ups" pressure coal, improving the recovery rate of coal mine resources, and prolonging the service life of mines. [0003] At present, the low efficiency of isolation and sealing of gobs to be filled is an important factor restricting the efficient production of paste filling coal mining face. If only manual methods are used to isolate and plug leaks in the mined-out area, not only the operation is cumbersome, the labor intensity of the workers is high, but also time-consuming and low in efficiency. However, the traditional fully mechanized mining supports are not equipped with isolation devices for sealing and filling slurry,...

AI Technical Summary

Problems solved by technology

[0003] At present, the low efficiency of isolation and sealing of gobs to be filled is an important factor restricting the efficient production of paste filling coal mining face

If only manual methods are used to isolate and plug leaks in the mined-out area, not only the operation is cumbersome, the labor intensity of the workers is high, but also time-consuming and low in efficiency. However, the traditional fully mechanized mining supports are not equipped with isolation devices for sealing and filling slurry, and manual work is also required. The isolation retaining wall is built in the same way, and the degree of mechanization is low, which cannot meet the requirements of high-efficiency production in coal mine paste filling mining.

[0004] Therefore, in the paste filling mining technology, the degree of mechanization of the isolation preparation work is not high, and the efficiency is low, which has become an urgent problem to be solved by those skilled in the art.

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