A system and method for coal mine water resource zone pre-mining

Abstract

The invention discloses a zoned pre-mining system and method for coal mine water resources. The zoned pre-mining system comprises a water resource mining system and a water resource drainage and irrigation system, wherein the water resource mining system comprises a tubular well used for being extended into a water resource mining area, a first water pump and a water pumping pipeline; the water resource drainage and irrigation system comprises a water storage space, a second water pump and a drainage pipeline; one end of the water pumping pipeline is arranged in the tubular well; the other end of the water pumping pipeline is communicated with a fluid in the water inlet of the first water pump; the first water pump is arranged outside the tubular well; the water storage space is arranged downstream the water outlet of the first water pump; one end of the drainage pipeline is arranged in the water storage space; the other end of the drainage pipeline is communicated with a fluid in the water inlet of the second water pump; the second water pump is arranged outside the water storage space. According to the zoned pre-mining system and method, prevention, development, protection and repair are conducted on a water resource in a coal mining zone according to actual conditions, so that pre-protection of the coal mining zone is realized.

Description

technical field [0001] The invention belongs to the technical field of coal mine mining and the field of comprehensive utilization of water resources, and relates to a system and method for pre-mining water resources in coal mines. Background technique [0002] my country's coal reserves rank first in the world, and it is a country with huge coal production and consumption. As the demand for coal increases, so does the amount of coal mined. At present, there are two main forms of coal mining in China, including open-pit mining and underground mining. Underground coal mining is very prone to subsidence, roof and surrounding rock collapse, leading to aquifer damage, rapid leakage and discharge of groundwater in various aquifers, and even ground surface subsidence. The methods of open-pit coal mining can be divided into stripping the land and digging damage, etc., resulting in surface subsidence and ground fissures in the mining area and surrounding areas, causing river water...

AI Technical Summary

Problems solved by technology

The existing water conservation mining is to take countermeasures during the coal mining process, which is a passive defense, which has inevitably caused pollution and loss of local water resources

Images