A design method for coal gangue underground sorting and in-situ filling engineering

Abstract

The invention discloses a design method for underground sorting and in-situ filling engineering of coal gangues. The design method comprises the following steps: analyzing the washability of underground coal gangues; determining a sorting method, sorting equipment and a sorting chamber of mines according to the washability and a washability scale of the underground coal gangues; determining the sorting amount of gangues and a working surface filling capability according to sorting scale; combining filling requirements to determine a final filling method; then determining filling equipment andtechnology through the needed filling amount and designing parameters of a filling surface; finally, designing a mining-sorting-filling production system according to actual mining arrangement of themines, and determining a mining-sorting-filling integration technology and verifying and feeding back key parameters for adjusting the mining-sorting-filling integration production system. By adoptingthe design method disclosed by the invention, the lifting cost of the coal gangues is reduced and environment pollution caused by the fact that the gangues are stacked and accumulated on the ground is avoided.

Description

technical field [0001] The invention relates to a filling engineering design method, in particular to a design method suitable for coal gangue underground sorting and on-site filling engineering in coal mining. Background technique [0002] At present, with the massive mining of coal resources, the shallow resources in the east are gradually exhausted, and the development strategy of my country's coal is gradually developing to the deep and west. Gangue is piled on the surface, causing irreparable impact on the environment. On the other hand, in the process of mining coal resources, a large area of ​​subsidence area is caused, which has a serious impact on the buildings and ecological environment on the ground. [0003] Through the underground coal gangue sorting and on-site filling technology, not only can the ecological environment quality of the mining area be changed, but also the movement of the rock strata can be effectively controlled and the coal resources under the ...

AI Technical Summary

Problems solved by technology

[0002] At present, with the massive mining of coal resources, the shallow resources in the east are gradually exhausted, and the development strategy of my country's coal is gradually developing to the deep and west. Waste rock is piled on the surface, causing irreparable impact on the environment

On the other hand, in the process of mining coal resources, a large area of ​​subsidence area has a serious impact on the ground's buildings and ecological environment.

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