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A strip-type structure filling protection-water storage system in a coal mining area

A strip-filling and strip-type technology, applied in waterway systems, mining wastewater treatment, water supply devices, etc., can solve the problems of water resource waste and groundwater loss in coal mining areas, and achieve reliable storage, prevent evaporation, and reduce pollution. Effect

Active Publication Date: 2021-04-06
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems of groundwater loss and waste of water resources in the coal mining area due to the breakage of the water-resisting rock formation in the existing coal mining area, and provides a strip-type structure filling protection-water storage system in the coal mining area

Method used

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  • A strip-type structure filling protection-water storage system in a coal mining area
  • A strip-type structure filling protection-water storage system in a coal mining area
  • A strip-type structure filling protection-water storage system in a coal mining area

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Embodiment 1

[0035] Embodiment 1, with Datun mine as the background, designs with the present invention.

[0036] The Datun mining area is located in Peixian County, Jiangsu Province, with a total area of ​​about 245km 2 , built 4 coal mines, 4 coal washing plants and 1 power plant (including gangue power plant). Before the mine water and domestic sewage were not treated and utilized, the production and domestic water in the entire mining area was drawn from deep underground wells, except for the surface water from Weishan Lake used by the power plant. The current actual water intake is about 39 million m 3 / a, the long-term overloaded pumping of groundwater has resulted in the formation of stable settlement funnels in some areas of the mining area, resulting in large-scale surface subsidence, which has already threatened mine shafts and industrial square buildings. It is necessary to seek supplementary water sources to reduce the extraction of groundwater quantity. The most direct and ...

Embodiment 2

[0051] Embodiment 2, with Daizhuang mine as the background, designs with the present invention.

[0052] Daizhuang Coal Mine is the second large-scale mine built by Zibo Mining Group Co., Ltd. in Jin (Ning) North Mining Area. It started construction in January 1998 and was handed over to production on January 26, 2000. The designed production capacity is 1.5 million t / a. Daizhuang Coal Mine is located in a water-rich area, the mine water volume is relatively large, and the maximum water inflow in the mine is 530m 3 / h, the current normal water inflow is 450m 3 / d, water resource fees are also increasing year by year, which not only causes serious waste of water resources, but also increases the economic burden of enterprises.

[0053] Jining City is located in the East Asian monsoon climate zone, which belongs to the warm temperate monsoon climate. In summer, it is mostly southerly wind, affected by tropical marine air mass or denatured tropical marine air mass, with high tem...

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Abstract

A strip-type structure filling protection-water storage system for coal mining areas belongs to the technical field of water resources protection and utilization in coal mining areas, and can solve the problem of groundwater loss and coal mining problems caused by the breaking of water-resistant rock formations in existing coal mining areas. Waste of water resources in mining areas, including strip filling body bearing structure, rainwater collection system, domestic sewage collection system and mine water collection system, domestic sewage, rainwater, mine water through the filtration system, primary sedimentation tank, secondary purification tank, Isolation, storage and treatment, to meet the industrial and agricultural water quality standards, to meet the water demand of industrial and agricultural production and coal mining face in the dry season of the mining area, to efficiently and reliably store the rainwater and clean mine water that have been tested to meet the drinking water standard, to meet the dry season of the mining area domestic water needs. The invention realizes water conservation coal mining and full recovery and utilization of water resources in coal mining areas.

Description

technical field [0001] The invention belongs to the technical field of protection and utilization of water resources in coal mining areas, and in particular relates to a strip-type structure filling protection-storage system in coal mining areas. Background technique [0002] In China, 70% of the coal mines are short of water resources, of which 40% of the coal mines are seriously short of water, and the water shortage of the state-owned coal mines reaches 698,600 m 3 / d, of which domestic water shortage is 33,000 m 3 / d. Northeast, Northwest, Shanxi, Inner Mongolia and Western Henan are the main coal-producing areas in my country. The water supply of coal mines in these areas is extremely tight, and some mining areas have less than 4 hours of daily water supply, which seriously restricts mine production and affects the daily life of coal workers. The life of workers and the key factor restricting the development of coal production. [0003] During the coal mining process,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E03F5/10C02F9/06C02F103/10
CPCC02F1/001C02F1/281C02F1/4693C02F1/5245C02F9/00C02F2001/007C02F2103/10C02F2301/08E03F5/10Y02A10/30
Inventor 冯国瑞杜献杰冉洪宇郭育霞戚庭野王泽华李庆东王鹏
Owner TAIYUAN UNIV OF TECH
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