A method of filling a coal mining area by using a filling support

Abstract

The invention discloses a method for filling a coal mining area by using a filling support, comprising: controlling the opening of the filling support to fit the coal wall and / or the filling body to form a closed space; controlling the filling system to pour paste into the closed space, the paste After the body is solidified, a filling body is formed; judge whether the coal cutting depth has increased to a preset value, if so, control the filling bracket to separate from the filling body, and repeat the above steps; judge whether the coal cutting is over, and if so, control the filling bracket to be taken out. During the use of the filling bracket, the movement of the filling bracket and the action of the filling device can be controlled by the control system, so that after a single filling of the paste, the filling bracket can move to the position for the next injection of paste under the control of the control system , to avoid the process of manually transporting and filling the support; and, before the end of coal cutting, it can realize the continuous filling of paste in the coal mining area for many times, and improve the filling efficiency of the coal mining area.

Description

technical field [0001] The invention relates to the technical field of coal mining, in particular to a method for filling a coal mining area with a filling support. Background technique [0002] After coal resources are mined, it is easy to cause the mining area to collapse. How to avoid the collapse of the mining area after coal mining is the key to improving the safety of coal mining; in the prior art, the space after coal mining is generally filled Filling to avoid subsidence problems in coal mining areas. [0003] In the prior art, there are two filling methods used, one is gangue filling and the other is paste filling; gangue filling support has a complex structure, low filling rate, large investment, and ground subsidence in the goaf after filling Serious; paste filling is now only used for roadway filling, the filling width is narrow, and during the filling process, after the filling bracket completes a filling, it is necessary to manually move the filling bracket to...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, there are two filling methods used, one is gangue filling and the other is paste filling; gangue filling support has a complex structure, low filling rate, large investment, and ground subsidence in the goaf after filling Serious; paste filling is now only used for roadway filling, the filling width is narrow, and during the filling process, after the filling bracket completes a filling, it is necessary to manually move the filling bracket to the next filling position. In the case of continuous coal cutting, The filling bracket cannot complete the process of continuous multiple filling, which reduces the filling efficiency

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