One-hole dual-purpose technology capable of meeting underground pressure relief and hydrogen sulfide treatment

Abstract

The invention relates to the technical field of coal production, and particularly relates to a one-hole dual-purpose technology capable of meeting underground pressure relief and hydrogen sulfide treatment. The one-hole dual-purpose technology comprises a transportation gate road, an air return gate road and a measure groove, wherein the air return gate road is arranged below the transportation gate road; the transportation gate road and the air return gate road are connected through the measure groove; a drill hole is formed between the transportation gate road and the air return gate road; aPVC pipeline is arranged on the inner side of the drill hole; the top end of the air return gate road communicates with the PVC pipeline; and the outer side of the PVC pipeline is coated with a firstcoating layer and a second coating layer. The large-diameter drill hole is drilled in a coal seam, and hydrogen sulfide adsorption liquid is injected at high pressure, so that the coal seam is softened while hydrogen sulfide in the coal seam is neutralized, and an anti-impact effect is achieved; and the large-diameter drill hole has a pressure relief effect, so that one drill hole can be constructed to achieve two effects of pressure relief and hydrogen sulfide treatment, comprehensive treatment of disasters is achieved, and the cost of disaster treatment is greatly saved.

Description

technical field [0001] The invention relates to the technical field of coal production, in particular to a one-hole dual-purpose technology that can satisfy underground pressure relief and hydrogen sulfide treatment. Background technique [0002] In the process of coal production, the concentration of hydrogen sulfide in some areas of the coal seam is relatively high. During the mining period, a large amount of hydrogen sulfide gas is released into the return air flow, causing the concentration of hydrogen sulfide in the return air channel of the working face to exceed the standard. bodily harm. The main methods for treating hydrogen sulfide include spraying sodium carbonate solution, splashing lime water, drilling holes in the coal seam and injecting hydrogen sulfide adsorption liquid under high pressure; at the same time, the coal seam has a strong impact risk, and the task of preventing and controlling rock burst is arduous; the prevention and control of rock burst The m...

AI Technical Summary

Problems solved by technology

[0002] In the process of coal production, the concentration of hydrogen sulfide in some areas of the coal seam is relatively high. During the mining period, a large amount of hydrogen sulfide gas is released into the return air flow, causing the concentration of hydrogen sulfide in the return air channel of the working face to exceed the standard. bodily harm

The main methods for treating hydrogen sulfide include spraying sodium carbonate solution, splashing lime water, drilling holes in the coal seam and injecting hydrogen sulfide adsorption liquid under high pressure; at the same time, the coal seam has a strong impact risk, and the task of preventing and controlling rock burst is arduous; the prevention and control of rock burst The main pressure relief methods in the methods include large-diameter drilling pressure relief, blasting pressure relief, coal seam water injection, etc.; the two kinds of disasters coexist, which brings harm to the personal safety and health of underground operators, increases the difficulty of treatment, and costs a lot of money. of funds and human resources are spent on governance of both disasters

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