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A gas-assisted spraying device for preventing spontaneous combustion of residual coal in goaf

A spray device, air-assisted technology, applied in safety devices, dust-proof, mining equipment, etc., can solve the problems of inflexibility, convenience, lack of overall design, poor effect, etc., and achieve high promotion and application value and market. Value, saving the use of liquid medicine, saving manpower

Active Publication Date: 2020-02-07
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But most of them have low efficiency, poor effect, and certain dangers, lack of overall design, and are not flexible and convenient to use.

Method used

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  • A gas-assisted spraying device for preventing spontaneous combustion of residual coal in goaf
  • A gas-assisted spraying device for preventing spontaneous combustion of residual coal in goaf
  • A gas-assisted spraying device for preventing spontaneous combustion of residual coal in goaf

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Experimental program
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Effect test

Embodiment Construction

[0029] The specific embodiments of the present invention will be described in detail below.

[0030] Such as figure 1 and figure 2 As shown, the air-assisted spraying device for preventing the spontaneous combustion of residual coal in the goaf of the present application includes a liquid delivery system, a gas delivery system, an electrostatic charging system, a spraying system, a lifting system, a pan-tilt system, a spray boom and a wheeled frame.

[0031] The liquid conveying system is installed in the vehicle frame, and is composed of a pressure air pipe 6, an outlet valve 9, a liquid storage tank 8, a pressure regulating valve 10, a safety valve 11, a pressure gauge 12 and an infusion hose 5 connected in sequence, and the infusion hose 5 is connected with the The liquid pipe 2-3 inlaid in the spray bar 2 is connected.

[0032] The gas conveying system is installed in the vehicle frame, and is composed of a pressure air pipe 6, an outlet valve 9, a safety valve 11, a pr...

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Abstract

A gas-assisted spraying device for preventing spontaneous combustion of residual coal in goafs, including a liquid delivery system, a gas delivery system, an electrostatic charging system, a lifting system, and a spray boom, wherein the spray boom includes a spray head, a spray frame body, a liquid distribution pipe, a The air pipe and the spray rod bracket, the nozzle includes the infusion pipe, the air pipe, the ring electrode, and the nozzle body. The nozzle body of the nozzle is inlaid with the ring electrode. The distance between the ring electrode and the gas-liquid mixing chamber in the nozzle is 1-2 cm, and the wire of the ring electrode passes through A micro plug is connected to the electrostatic generator in the electrostatic charging system on the outside of the boom. The air-assisted spraying device realizes uniform spraying of anti-fire extinguishing materials in the goaf of the coal mine, high utilization rate, effective coverage of the coal left in the goaf, and greatly reduces the occurrence of danger.

Description

technical field [0001] The invention belongs to the field of mine fire prevention and extinguishing, and in particular relates to a gas-assisted spraying device for preventing spontaneous combustion of leftover coal in a goaf. Background technique [0002] In recent years, with the increasing degree of coal mining, the continuous development of high-yield and high-efficiency new technologies, the continuous extension and development of mines, and the relative complexity of ventilation systems, the natural danger of coal seams has a tendency to increase significantly. The complexity of the environment and the concealment of the coal spontaneous combustion area make it difficult for the existing coal spontaneous combustion prevention and control technology to meet the needs of intensive mine safety production; and the current methods for mine coal prevention and control mainly include grouting, inert gas injection, and resistance injection. Chemical agent, gel injection and fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F5/00E21F5/02
CPCE21F5/00E21F5/02
Inventor 胡相明邵志昂吴明跃程卫民赵艳云胡尊翔任晓峰张茜
Owner SHANDONG UNIV OF SCI & TECH
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