Method for backfilling separately-recovered and sub-transported gangues of underground dirt band coal layer and complete equipment

Abstract

The invention discloses a method for backfilling separately-recovered and sub-transported gangues of an underground dirt band coal layer and complete equipment. The device comprises a front part scraper plate conveyor, wherein an output end of the front part scraper plate conveyor is provided with an external transportation reversed loader and a transportation belt; the transportation belt is provided with a reversing door; a far end reversed loader is arranged relatively to the reversing door of the transportation belt in a loading manner; a backhaul belt machine is arranged at an output end of the far end reversed loader; an output tail end of the backhaul belt machine is correspondingly provided with a backhaul reversed loader and a rear part conveyor for backfilling; an upper-layer coal layer, middle gangues and a lower-layer coal layer are adopted in sequence and the coal layers are transported to a well by a reversing device; the gangues are backhauled to a goaf, so that the mining rate of the coal layers is improved and the phenomenon of washing is avoided; and meanwhile, the upper and lower coal layers are transported to the well and the middle gangues are transported into an underground goaf so as to effectively avoid the pollution to an environment.

Description

technical field [0001] The invention relates to a coal mine fully mechanized mining device and a fully mechanized mining method used for gangue inclusion in coal. Background technique [0002] In recent years, with the continuous increase in the demand for coal due to the development of the national economy, the output of many coal mines has also been continuously increased under the premise of ensuring safety, resulting in a large amount of mine development projects and a large amount of gangue, and a certain degree of auxiliary transportation has appeared. A large amount of gangue enters the coal, which brings a heavy burden to the washing of coal. [0003] Many coal mines with gangue in the existing coal have adopted the mining method of mining the upper layer and dropping the lower layer, which has caused a huge waste of coal resources. [0004] There are also two layers that are mined, but the traditional treatment method of underground gangue is to lift it from the mi...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the waste of the lower coal seam of the existing gangue coal seam and gangue pollution, the present invention provides a method and a complete set of equipment for separately mining and gangue backfilling of the underground gangue coal seam, which can adopt upper and lower layers respectively The coal seam and gangue layer increase the mining rate of the coal seam and avoid waste. At the same time, the upper and lower coal seams can be transported to the well and the middle gangue can be transported to the underground goaf, effectively avoiding environmental pollution.

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