Coordinated mining system for coal and coal measure symbiotic bauxite and downward development and extension method thereof

Abstract

The invention discloses a coordinated mining system for coal and coal measure symbiotic bauxite and a downward development and extension method thereof. A bauxite layer is located on the lower portion of a coal mine layer and comprises a main shaft, an auxiliary shaft, an air return shaft, a section haulage roadway, a section air return roadway, a haulage roadway and a blind inclined shaft, wherein one end of the haulage roadway communicates with the section haulage roadway, the section air return roadway and the air return shaft of the coal mine layer, and the other end of the haulage roadway communicates with the main shaft; and one end of the blind inclined shaft communicates with the main shaft, and the other end of the blind inclined shaft extends downwards and communicates with a bauxite mining horizontal main roadway. According to the development and extension method, the blind inclined shaft and a ramp development mode are adopted to extend to the mining level of the lower aluminum mine layer, then a shaft station, the main roadway and other development roadways are arranged, and a new aluminum mine layer mining level is formed; and the original coal mine main shaft, the original coal mine auxiliary shaft and an original lifting system are fully utilized, and the newly developed and extended development roadways are combined, so that lifting and transporting of coal mine and bauxite do not interfere with each other, and coordinated mining of the bauxite and the coal mine is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a coordinated mining system of coal and coal-measure paragenetic bauxite and a downlink development and extension method thereof. Background technique [0002] my country's coal-measure strata are widely distributed. In addition to coal resources, these coal-measure strata also contain a large number of co-associated resources, including germanium, gallium, uranium, lithium, aluminum, rare earth and other emerging strategic mineral resources, coalbed methane, shale Gas, oil shale, natural gas hydrate, sandstone-type uranium ore and other energy minerals, as well as kaolin, graphite, clay ore and other non-metallic minerals, are of various types, high in grade, abundant in reserves, and high in recoverable value. Among them, coal-measure paragenetic bauxite reserves are extremely rich, especially the occurrence of aluminum under coal-measure strata is more common, and bauxite resour...

AI Technical Summary

Problems solved by technology

In the traditional single-resource mining, enterprises often only focus on a certain resource, the exploration target is single, and the mining design and management are single. There are many problems, which are not conducive to the subsequent exploitation of associated resources.

For example: (1) After the mining of the lower bauxite mine, the movement of the upper rock layer caused the damage of the upper coal seam of the bauxite mine, which made the coal seam unable to be mined, resulting in a huge loss of resources

(2) Due to the simplification of preliminary exploration and design, the original shafts and other engineering facilities cannot be used, and there is a problem of repeated construction in the later exploitation of associated resources

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