Gob retardant efficient spraying system and spraying method

A spraying system and inhibitor technology, applied in mining equipment, earthwork drilling, safety devices, etc., to achieve the effects of optimizing technical methods, improving safety, and avoiding hidden dangers of spontaneous combustion

Inactive Publication Date: 2015-02-04
LIAONING TECHNICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the existing mine inhibitor spraying process, the present invention provides a high-efficiency spraying system and spraying method for goaf inhibitors

Method used

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  • Gob retardant efficient spraying system and spraying method
  • Gob retardant efficient spraying system and spraying method
  • Gob retardant efficient spraying system and spraying method

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing and certain coal mine 28412 fully mechanized caving working face examples the present invention is described in further detail.

[0039] Such as figure 1 , figure 2As shown, a goaf inhibitor efficient spraying system includes the first inhibitory pumping station 29 arranged at 100 meters away from the lower corner 12 of the air inlet roadway, and the first resistive chemical pump station 29 arranged at the upper corner 20 meters away from the return airway 27. The second resistance chemical pump station 30 at one hundred meters and the nitrogen delivery pipeline 2 arranged at the air inlet lane 1; the first resistance chemical pump station 29 consists of the first liquid storage tank 3, the first resistance chemical pump 4, the first The filter 5 and the first high-pressure ball valve 7 are composed, the first liquid storage tank 3 is connected with the input end of the first resistance pump 4, and the output end of the f...

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Abstract

The invention discloses a gob retardant efficient spraying system and a gob retardant efficient spraying method, and belongs to the technical field of prevention and control of natural disasters under a coal mine. The system comprises a retarding pump station and a nitrogen conveying pipeline, wherein a liquid storage tank is connected with the input ends of retarding pumps; the output end of the first retarding pump is connected with the input end of an atomizer through a first filter; the output end of the atomizer is connected with the first port of a tee joint; the second port of the tee joint is connected with the nitrogen conveying pipeline; a first pressure gauge is arranged on the third port of the tee joint; the output end of a second retarding pump is connected with a spray head arranged on the back part of a hydraulic bracket respectively after passing through a second filter; a first high-pressure ball valve is arranged on a pipeline between the first filter and the atomizer; a second pressure gauge and a second high-pressure ball valve are arranged on a pipeline between the second filter and the spray head; a third pressure gauge is arranged on the nitrogen conveying pipeline. In the spraying method, by taking high-pressure nitrogen gas as a carrier, an atomized retardant is delivered to the back part of a working surface bracket and is then automatically sprayed from a plurality of points .

Description

technical field [0001] The invention belongs to the technical field of spontaneous combustion disaster prevention and control in coal mines, and in particular relates to a high-efficiency spraying system and spraying method of a goaf inhibitor. Background technique [0002] Spontaneous combustion of coal is one of the major threats to coal mining. In my country's key coal mines, about 50% of the mines have the danger of coal spontaneous combustion, and 94% of the total number of mine fires are coal spontaneous combustion, of which coal spontaneous combustion in goafs accounts for about 60%. Spontaneous combustion of coal has caused about 4.2 billion tons of high-quality coal loss, and the loss is still increasing at an annual rate of 30 million tons. At the same time, the spontaneous combustion of coal in the goaf is likely to produce many toxic and harmful gases, which diffuse into the working face or roadway with the wind, often causing poisoning or even death of coal min...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/00
CPCE21F5/04
Inventor 张勋邓存宝王继仁金智新王雪峰戴凤威高飞
Owner LIAONING TECHNICAL UNIVERSITY
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