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Gel foam material for treating large-area fire area caused by deep inflammable coal seam

A flammable coal seam, gel foam technology, applied in fire protection equipment and other directions, can solve the problems of sodium dodecyl benzene sulfonate with slight toxicity, low biodegradation rate, incomplete degradation, etc., achieve high water retention, The effect of strong fluidity and prolonged ignition time

Pending Publication Date: 2022-06-28
ANHUI UNIV OF SCI & TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. Sodium dodecylbenzene sulfonate is slightly toxic, the biodegradation rate is extremely low, and the degradation is incomplete. It is easy to cause serious pollution to the environment when used in large quantities

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Through the quantitative feeder X, respectively, at 0.001m 3 / h~0.002m 3 / h, 0.0007~0.001m 3 The sodium dodecyl sulfonate and cocamidopropyl betaine are transported to the A pool at the speed of / h, and are respectively 0.0005~0.001m through the quantitative feeder Y. 3 / h, 0.0015~0.002m 3 / h,0.003m 3 The sodium carboxymethyl cellulose, water glass and AES were transported to the A pool at the speed of / h, and then passed through the submersible pump at a rate of 1 m 3 Inject clean water into pool A at a speed of / h.

[0026] The A pool is stirred by a screw agitator to form the initial foaming phase.

[0027] Inject the initial foaming phase of pool A into the mixer through pipeline transportation, and add the pump to 1m 3 / h Add 20% magnesium chloride and 20% sodium chloride solution to the mixer, and form a foam stock solution after mixing.

[0028] The raw liquid is connected to the KSP foaming machine, and nitrogen is filled into the foaming machine through ...

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Abstract

Aiming at the characteristics that deep mine fire accidents are easy to occur, spontaneous combustion accidents are frequent, and a large-area fire area is difficult to extinguish, the invention researches a gel foam material for treating the large-area fire area caused by a deep inflammable coal seam by applying interface chemistry, colloidal chemistry, physical chemistry and field actual environment. Compared with traditional fire prevention and extinguishing measures such as a grouting technology, inert gas, a stopping agent and three-phase foam, the material has the advantages of being high in foaming times, good in stability, good in flame retardant effect, capable of being stacked at a high position, good in air leakage stopping performance, environmentally friendly and the like, and a large-area smoldering fire area can be rapidly extinguished and reburning of the large-area smoldering fire area can be inhibited for a long time. The foaming agent comprises the following components: a compound foaming agent, a thickening agent, a catalyst, a foam stabilizer, a flocculating agent, water, nitrogen and the like.

Description

technical field [0001] This product belongs to the field of fire-fighting materials, and specifically relates to a new type of gel foam material for treating large-area fire areas caused by deep flammable coal seams, and a preparation method and application method thereof. Background technique [0002] In recent years, with the increase of the degree of coal mining and the continuous extension and development of mines, the danger of flammable coal seams has an obvious trend of increasing. According to statistics, most of the thick coal seams are flammable coal seams. However, the complexity of the mine environment and the concealment of the coal spontaneous combustion dangerous area make it difficult for the existing coal spontaneous combustion prevention technology to meet the needs of intensive mine safety production. After spontaneous combustion of coal, it is very easy to have a chain effect to form a large-scale fire area. Every year, hundreds of millions of tons of co...

Claims

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Application Information

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IPC IPC(8): A62D1/00A62D1/02
CPCA62D1/0064A62D1/0071
Inventor 廖秋杰舒森辉袁兴康袁兴健雷文昌丁宇航
Owner ANHUI UNIV OF SCI & TECH
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