Paste filling fully-mechanized coal mining device and method for support matching template

Abstract

The invention discloses a paste filling fully-mechanized coal mining device for a support matching template. The device comprises a telescopic support and an automatic filling template, the automatic filling template is positioned behind the telescopic hydraulic support, the telescopic support comprises a main support base and an auxiliary support base, both the main support base and the auxiliary support base are of an integrated box-type structure, a first hydraulic support column is vertically arranged on the main support base, and a second hydraulic support column is vertically arranged on the auxiliary support base. The telescopic six-column supporting hydraulic support matching self-moving filling template is researched and developed according to a paste filling working surface of a thin coal seam, coal mining and filling are simultaneously operated, and processes such as 'mining, supporting, moving and filling' are mechanized and integrated.

Description

technical field [0001] The invention belongs to the technical field of mining and relates to a paste filling fully mechanized mining method. Background technique [0002] The paste filling mining coal seam technology is different from the gangue filling mining technology. It refers to processing waste materials such as coal gangue on the ground into a toothpaste-like slurry that does not require dehydration, and transporting it to the underground filling goaf or separation area through pipelines. , forming an overlying rock support system dominated by paste filling bodies. This technology can effectively control surface subsidence and solve the problem of "three downs" mining. [0003] The filling paste needs to have enough solidification time to reach a certain strength in the goaf to form an effective support for the roof. It needs to exchange space for time to make the paste solidify. The hydraulic support filled with paste in ordinary working faces can basically meet the...

AI Technical Summary

Problems solved by technology

[0003] The filling paste needs to have enough solidification time to reach a certain strength in the goaf to form an effective support for the roof. It needs to exchange space for time to make the paste solidify. The hydraulic support filled with paste in ordinary working faces can basically meet the site requirements. For thin In the coal seam working face, filling hydraulic supports cannot be used due to space constraints. Generally, the common fully mechanized mining technology of single column controlling the roof and filling formwork controlling paste solidification is adopted. Although the filling formwork with self-moving characteristics is adopted later, it still needs to be filled in the filling formwork. A large number of individual pillars are set up between the formwork and the shearer, and a large amount of manpower and financial resources are consumed in the process of moving the support units and the formwork. At the same time, manual pushing is required, which takes a long time, low work efficiency, and low degree of automation. Realize the effective connection of each process of "collecting, supporting, moving and charging"

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