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A device for controlling gas in upper corners of coal mines based on water-air vortex fluid

A vortex and fluid technology, applied in the direction of gas discharge, safety devices, mining equipment, etc., can solve the problem of gas accumulation and other problems

Active Publication Date: 2020-01-03
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of this invention is to control the gas in the upper corner of the coal mine based on the water-gas vortex fluid. Different fluids are mixed to form a multiphase water-gas vortex fluid, which fills the upper corner of the coal mine, and through continuous vortex flow, the gas in the upper corner of the coal mine overflows into the main air flow for dilution and discharge, or with The liquid particles are combined and discharged together with the coal mine minerals or other liquid solids; and the vortex fluid flow fills the upper corner of the coal mine so that no gas accumulation can occur in this space. The technical scheme of the device and application method, the technical scheme is simple, reliable, It is easy to operate, timely, reliable, thorough, efficient, and does not cause secondary pollution. The water-gas vortex fluid control gas device in the upper corner of the coal mine, so as to avoid the occurrence of vicious incidents caused by the out-of-control gas in the upper corner

Method used

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  • A device for controlling gas in upper corners of coal mines based on water-air vortex fluid

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Effect test

Embodiment approach 1

[0019] A device for controlling gas in the upper corner of a coal mine based on a water-air vortex fluid, the device consists of a pressure water circuit 1, a pressure gas circuit 2, an intelligent controller 3, a gas-water vortex generating device 4, a fixed pillar assembly 5, and an air flow guide overflow Baffle plate 6, upper corner 7, goaf 8, working face coal wall 9, coal mining face 10, main air flow 11, roof 12 and bottom plate 13, pressure water channel 1 and pressure gas channel 2 are used as air-water vortex The power source of swirling fluid, their working pressure range is 0.6Mpa, and the dosage volume ratio is 1:0.05. The gas-water swirl generating device 4 is connected to the pressure water circuit 1 and the pressure gas circuit 2 respectively through the intelligent controller 3, and the pillar assembly is fixed 5 is supported between the top plate 12 and the bottom plate 13, the fixed pillar assembly 5 is arranged in the upper area of ​​the upper corner 7, and ...

Embodiment approach 2

[0028] The working pressure is 0.2Mpa, the dosage volume ratio is 1:0.001, the fixed pillar assembly 5 is arranged separately, and the air-water vortex generator 4 is fixed on the side of the upper corner of the fixed pillar assembly 5 close to the upper corner 7, so that it is 30 degrees The gas-water atomized vortex fluid is sprayed toward the position of the top plate 12 in the direction of the upward inclination angle, and the fixed pillar assembly 5 is arranged in the middle of the upper corner 7, and the others are the same as in the first embodiment.

Embodiment approach 3

[0030] The working pressure is 0.5Mpa, the dosage volume ratio is 1:0.03, the fixed pillar assembly 5 is arranged separately, and the air-water vortex generating device 4 is fixed on the upper part of the fixed pillar assembly 5 close to the upper corner 7, so that it is 35 degrees The gas-water atomized vortex fluid is sprayed toward the position of the top plate 12 in the direction of the upward inclination angle, and the fixed pillar assembly 5 is arranged at the lower part of the upper corner 7, and the others are the same as in the first embodiment.

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Abstract

The invention discloses a device based on water-gas vortex fluid to manage coal mine upper corner gas and belongs to the technical field of fluid application. The device is characterized in that liquid-phase fluid and gaseous-phase fluid which are totally different in physical performance are mixed to generate multi-phase flow water-gas vortex fluid which is allowed to fill a coal mine upper corner, and gas at the coal mine upper corner is enabled to overflow into main air flow to be diluted and discharged through continuous vortex flowing or to be combined with liquid particles to be discharged along with coal mineral or other liquid-solid content; the vortex fluid flows to fill the coal mine upper corner, so that no gas is accumulated in this space. The device can avoid malignant eventscaused by the fact that the upper corner gas is out of control and is great in application prospect and significance. The device is simple and reliable, easy to operate, timely, thorough, efficient and free of causing secondary pollution.

Description

Technical field: [0001] The invention is a device for controlling gas in the upper corner of a coal mine based on a water-air vortex fluid, which belongs to the field of fluid application technology, and is specifically a method for mixing two fluids with completely different physical properties in a liquid phase and a gas phase to generate a multi- The phase-flow water-air vortex fluid makes the fluid fill the upper corner of the coal mine, and through the continuous vortex flow, the gas in the upper corner of the coal mine overflows into the main air flow for dilution and discharge, or combines with liquid particles to accompany the coal mine minerals or other The liquid and solid matter are discharged together; and the device and application method are filled with the upper corner of the coal mine through the vortex fluid flow so that no gas accumulation can occur in this space. Background technique: [0002] Gas refers to the harmful gas mainly consisting of methane in m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 郭建珠邵和何艳沈积雄
Owner TAIYUAN UNIV OF TECH
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