Continuous coal mining machine paste filling mining method

Abstract

The invention belongs to the technical field of application of coal mining equipment and coal mining method, and for solving the problems that conventional 'three unders (under building, railways and water bodies)' unexploited coal filling is high in cost and low in efficiency, matched filling materials are mostly solid filling materials, the transport project amount is large, the filling speed is slow, transportation and filling are difficult to match and synchronize, and the goaf compacting effect is not ideal after filling, provides a continuous coal mining machine paste filling mining method; a main lane and an auxiliary lane are arranged at the middle part of a mining area, the two lanes are connected through connection lanes at intervals, two sides of the main lane and the auxiliary lane are each provided with remining branched lanes, and two sides of each branched lane are each provided with mining adits for re-mining. A continuous coal mining machine performs re-mining at the one-side branched lanes, and a paste filling system performs goaf filling in the-other-side branched lanes. The mining and filling parallel operation is achieved, damage of coal mining on ground buildings (structures) and ecological environments is reduced, the economic benefits of the 'three unders' coal mining is increased, the mining and filling efficiency is high, equipment movement is flexible, the process is advanced, and the method is the quite ideal 'three unders' unexploited coal mining method.

Description

technical field [0001] The invention belongs to the technical field of the application of coal mining equipment and coal mining methods, and in particular relates to a continuous coal mining machine paste filling mining method, which is a continuous coal mining machine mining method of "three-down" coal pressing. Background technique [0002] Filling mining has become an effective technical approach to solve the "three down" coal mining. At present, domestic coal mining technologies that are compatible with filling mining mainly include roadway mining (strip mining), longwall general mining (blasting mining) and longwall fully mechanized mining. Problems and deficiencies, such as: high filling cost and low efficiency, most of the matching filling materials are solid filling materials, large amount of transportation work, slow filling speed, difficult matching and synchronization of transportation and filling, compaction effect of goaf after filling unsatisfactory issues. ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of high cost and low efficiency of the existing "three-down" compressed coal filling, the matching filling materials are mostly solid filling materials, the transportation engineering volume is large, the filling speed is slow, and the transportation and filling are difficult to match and synchronize. For problems such as unsatisfactory goaf compaction effect after filling, a continuous miner paste filling mining method is provided, and the continuous miner short-wall mining technology combined with paste filling technology is used to solve the "three-down" coal mining method , while realizing the safe and efficient mining of "three under" coal pressure, strictly control the movement of rock strata and surface subsidence, and reduce the damage of coal mining to surface buildings (structures) and ecological environment

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