Rapid sealing anti-explosion foaming agent for coal mine tunnel, generator and sealing anti-explosion method

A technology of foam generators and coal mine roadways, which is applied in mining equipment, earthwork drilling, fire protection equipment, etc., can solve the problems of life safety threats to construction personnel in confined places, inability to effectively guarantee mine safety, difficulty in resisting blast shock waves, etc., and promote Shear thickening effect, improvement of compressive performance, and effect of resisting blast impact

Active Publication Date: 2022-06-24
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology

The traditional roadway sealing process is generally to pile up thick masonry or concrete walls by manpower. This method is labor-intensive and time-consuming, and there are great safety risks
When the wall is piled up, a gas explosion occurs in the fire area, and the shock wave generated will pose a great threat to the safety of the construction workers in the airtight place
In recent years, some technicians have begun to try to adopt inflatable airbag type airtight technology, but it is difficult to resist the blast shock wave and cannot effectively guarantee mine safety

Method used

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  • Rapid sealing anti-explosion foaming agent for coal mine tunnel, generator and sealing anti-explosion method

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Embodiment Construction

[0022] Below by embodiment and in conjunction with accompanying drawing, the present invention is further described:

[0023] An explosion-proof foaming agent for rapid sealing of coal mine roadways, comprising 14-16%wt silica particles, 0.8-1.0%wt sodium lauryl sulfate, 0.5-0.7%wt guar gum, 20-24%wt 1-butane imidazole tetrafluoroborate solution, 1.0-1.5% wt trimethylglycine, and the balance is liquid carbon dioxide.

[0024] Silica particles are used as the dispersed phase, and the diameter is preferably 25-35nm, which can ensure that there are enough particles in the unit base liquid, increase the probability of mutual interference and collision between particles, promote shear thickening effect, and resist explosion impact; The particles are in the shape of elliptical disks. Because the ratio of the long and short axes is larger than that of the disks, the resistance is greater when moving in the dispersion system, which promotes the increase of shear thickening strength an...

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Abstract

The invention discloses a rapid sealing anti-explosion foaming agent for a coal mine tunnel. The rapid sealing anti-explosion foaming agent is prepared from 14 to 16 percent by weight of silicon dioxide particles, 0.8 to 1.0 percent by weight of lauryl sodium sulfate, 0.5 to 0.7 percent by weight of guar gum, 20 to 24 percent by weight of 1-butylimidazole tetrafluoroborate solution, 1.0 to 1.5 percent by weight of trimethylglycine and the balance of liquid carbon dioxide. Meanwhile, the invention further discloses a quick sealing anti-explosion foam generator for the coal mine tunnel and a quick sealing anti-explosion method for the coal mine tunnel. The shear thickening fluid material is introduced in the technical field of coal mine roadway sealing, roadway sealing is carried out, the sealing rate is increased, meanwhile, better explosion impact resistance is achieved, the personal safety of victims and rescue workers is guaranteed, and safe production of the coal mine industry is promoted.

Description

technical field [0001] The invention relates to the technical field of coal mining safety, in particular to a rapid-sealing explosion-proof foam agent for coal mine roadways, a rapid-sealing explosion-proof foam generator for coal mine roadways, and a method for rapid sealing and explosion-proofing of coal mine roadways. Background technique [0002] Mine fires and explosions are catastrophic problems that plague the safety production of the coal mining industry. When a fire breaks out in a local area of ​​the mine, and it is difficult to quickly extinguish the fire, it is usually necessary to seal the roadway in the fire area, that is, block the entrance and exit roadways of the fire area, so as to isolate the roadway in the fire area from the external roadway, and suffocate the fire area through anaerobic asphyxiation. to put out the fire and control the further expansion of the fire area. The traditional roadway sealing process generally involves manpower stacking thick ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/02E21F17/103
CPCA62D1/0071E21F17/103
Inventor 黄启铭李明阳桂真闫雨婷陈凯鹏
Owner SHANDONG UNIV OF SCI & TECH
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