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A connection device and connection method for connecting underground reservoirs in upper and lower coal seams

An underground reservoir and connecting device technology, applied in mining devices, earth-moving drilling, mining equipment, etc., can solve the problems of long pipeline distance, many hidden safety hazards, difficult management, etc., to save costs, reduce precision control, and ensure construction safety. Effect

Active Publication Date: 2016-01-20
CHINA SHENHUA ENERGY CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to realize the interconnection between different underground reservoirs, inter-reservoir pipelines must be built. Underground reservoirs at the same level can be interconnected through pipelines, but the span between different coal seams is as high as hundreds of meters. The coal seam is connected to the tunnel construction pipeline, facing the problems of long laying pipeline distance, many safety hazards, large investment and difficult management

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  • A connection device and connection method for connecting underground reservoirs in upper and lower coal seams
  • A connection device and connection method for connecting underground reservoirs in upper and lower coal seams
  • A connection device and connection method for connecting underground reservoirs in upper and lower coal seams

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Embodiment Construction

[0036] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0037] like Figure 1-4 As shown, the present invention provides a connection device 1 for connecting the underground reservoirs in the upper and lower coal seams, comprising a borehole 11 arranged between the underground reservoirs 101 and 102 in the upper and lower coal seams, and the borehole 11 is along a vertical direction Set up and connect the underground reservoir 101 in the upper coal seam 100 and the underground reservoir 102 in the lower coal seam 200, wherein, at least one water supply pipeline 12 for water supply in the underground reservoir 102 in the lower coal seam 200 is arranged in the borehole 11, and the drilling At least one drainage pipe 13 for discharging sewage is also arranged in the hole 11 , and the drainage pipe 13 and the water supply pipe 12 are fastened in the hole 11 through the grouting layer 14 .

[0038] Tha...

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Abstract

The invention discloses a connecting device for communicating an underground water reservoir in an upper coal seam and an underground water reservoir in a lower coal seam. The connecting device comprises drill holes formed between the underground water reservoirs arranged in the upper coal seam and the lower coal seam, and the drill holes are formed in the vertical direction and used for communicating the underground water reservoir arranged in the upper coal seam and the underground water reservoir the lower coal seam, wherein at least one water supply pipeline for supplying water to the underground water reservoir in the lower coal seam is arranged in the drill holes, at least one water discharging pipeline used for discharging out sewage is further arranged in the drill holes, and the water discharging pipelines and the water supply pipelines are fastened in the drill holes through slip casting layers. The invention further discloses a connecting method for communicating the underground water reservoir in the upper coal seam and the underground water reservoir in the lower coal seam.

Description

technical field [0001] The invention relates to the technical field of coal mining and water conservancy engineering, in particular to a connecting device and a connecting method for connecting underground reservoirs in upper and lower coal seams. Background technique [0002] The western region is the main coal producing area in my country, but the water resources are scarce and the ecological environment is fragile. According to relevant statistics, in 2012, coal production in the western energy "Golden Triangle" region (Yulin, Ordos and Ningdong) accounted for 27% of the country's total, but water resources accounted for only 0.37%. . [0003] For every ton of coal mined in the west, about 2 tons of mine water is discharged on average. A large amount of mine water discharged is discharged to the surface after treatment. Since the evaporation in this area is about 6 times that of the rainfall, the discharged mine water is quickly lost and wasted due to evaporation. In or...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F17/16
Inventor 顾大钊李全生曹志国陈苏社
Owner CHINA SHENHUA ENERGY CO LTD
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