Coordinated Mining System of Coal and Coal Measures Coexisting Bauxite and Its Downward Exploitation and Extension Method

Abstract

The invention discloses a coal-coal symbiotic bauxite coordinated mining system and its downward development and extension method. The bauxite layer is located at the lower part of the coal mine layer, including: a main shaft, an auxiliary shaft and a return air shaft; a section transportation platform Roadway and section return air entryway; transport roadway, one end of which is connected with the section transport entryway, section return air entryway and return air shaft of the coal mine seam, and the other end is connected with the main shaft; blind inclined shaft, One end is connected with the main shaft, and the other end is extended downwards and connected with the bauxite mining horizontal roadway; the development and extension method adopts the method of blind inclined shaft and ramp development to extend to the mining level of the lower aluminum layer and arrange the well The development of roadways such as bottom car yards and main roads will form a new mining level for aluminum deposits; make full use of the original main and auxiliary shafts and hoisting systems of coal mines, and combine the newly developed and extended roadways to make the lifting and transportation of coal mines and bauxite mutually interactive. No interference, ensuring coordinated mining of bauxite and coal mines.

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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