Fire preventing and extinguishing gel preparation method and coal mine fire preventing and extinguishing method

A technology of anti-fire extinguishing and gel, which is applied in fire prevention equipment, fire prevention, dust prevention, etc. It can solve the problems that the anti-fire extinguishing gel does not use natural polymer materials, cannot capture coal spontaneous combustion, and is difficult to achieve the desired effect. Improve fire prevention efficiency, good environmental protection effect, and oxygen isolation effect

Inactive Publication Date: 2021-07-02
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (1) After the existing fire extinguishing gel is used, it only prevents the open fire at that time, and cannot continue to capture the spontaneous combustion of coal generated during coal mi

Method used

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  • Fire preventing and extinguishing gel preparation method and coal mine fire preventing and extinguishing method
  • Fire preventing and extinguishing gel preparation method and coal mine fire preventing and extinguishing method
  • Fire preventing and extinguishing gel preparation method and coal mine fire preventing and extinguishing method

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preparation example Construction

[0038] Such as figure 1 Shown, the preparation method of the anti-fire extinguishing gel provided by the invention may further comprise the steps:

[0039] S101: dissolving carboxymethyl cellulose in distilled water, heating and fully stirring, then adding aluminum citrate to the solution and passing nitrogen gas for protection, and reacting to obtain the first solution;

[0040] S102, raising the temperature to 60° C., continuing to add gluconolactone to the first solution, stirring continuously and reacting for 1 hour, to obtain a second solution;

[0041] S103: adding sodium bicarbonate into the second solution and stirring evenly, adding a pH agent, and adjusting it to about 4-5 to obtain a third solution;

[0042] S104: Dissolving the water glass in distilled water, and after being thoroughly mixed, adding it dropwise to the third solution, and reacting for 1 hour to obtain a final product.

[0043] In the present invention, the first solution is obtained by reacting fo...

Embodiment 1

[0046]The preparation method of the anti-fire extinguishing gel provided by the present invention comprises weighing 3g of carboxymethyl cellulose and dissolving it in 200ml of water under the condition of 85°C. Adjust the temperature to 65°C, add 0.1g gluconolactone to the solution, stir at a constant temperature for 30min, then slowly add 3g of aluminum citrate into the beaker, stir at a constant temperature for 30min, then add sodium bicarbonate, continue heating and stirring for 1h to obtain For the final product, add an appropriate amount of NaOH to adjust the pH value to 4 to obtain a high-temperature resistant and highly water-absorbent fire-fighting gel G1, and test related properties.

Embodiment 2

[0048] The preparation method of the anti-fire extinguishing gel provided by the present invention comprises weighing 2.5g carboxymethyl cellulose and dissolving it in 200ml water under the condition of 85°C; Adjust the temperature to 65°C, add 0.1g gluconolactone to the solution, stir at constant temperature for 30min, then slowly add 3g of aluminum citrate into the beaker, stir at constant temperature for 30min, then add sodium bicarbonate, continue heating and stirring for 1h, After obtaining the final product, add an appropriate amount of NaOH to adjust the pH value to 4 to obtain high-temperature resistant and highly water-absorbent fire-fighting gel G2, and test related properties.

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Abstract

The invention belongs to the technical field of coal mine fire prevention and extinguishment, and discloses a fire preventing and extinguishing gel preparation method and a coal mine fire preventing and extinguishing method. The fire preventing and extinguishing gel is prepared from, by mass, 1%-2% of carboxymethyl cellulose, 4%-5% of a cross-linking agent, 4%-5% of sodium bicarbonate, 4%-5% of a water glass diluted solution, 0.1%-0.3% of a pH regulator and water. The preparation method comprises the following steps: dissolving carboxymethyl cellulose in distilled water, heating and fully stirring, then adding aluminum citrate into a solution, introducing nitrogen for protection, and reacting to obtain a first solution; raising the temperature, continuously adding glucolactone into the first solution, and continuously stirring and reacting to obtain a second solution; adding sodium bicarbonate into the second solution, uniformly stirring, adding the pH regulator, and adjusting to obtain a third solution; dissolving water glass in distilled water, mixing, dropwise adding into the third solution, and reacting to obtain a final product. The coal storage time is prolonged, and the safety production efficiency of a coal mine is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mine fire prevention and extinguishing, and in particular relates to a method for preparing a fire prevention gel and a coal mine fire prevention and extinguishing method. Background technique [0002] At present, coal spontaneous combustion is one of the main threats to coal mine safety. The resulting fire will cause casualties and heavy property damage, as well as serious environmental pollution. In recent years, the average annual output of coal in the world has reached about 7.5 billion tons. Gas and coal dust explosions caused by coal spontaneous combustion occur from time to time, and the direct economic losses caused by coal spontaneous combustion amount to billions of dollars every year, while indirect losses such as ecological environment degradation and air pollution are difficult to estimate. At present, fire prevention and extinguishing technologies for preventing coal spontaneous combu...

Claims

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Application Information

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IPC IPC(8): A62D1/00E21F5/00
CPCA62D1/0064E21F5/00
Inventor 周刚李帅龙刘冬张欣远牛琛茜徐翠翠王勇梅邢梦瑶王凯丽董晓素贺敏
Owner SHANDONG UNIV OF SCI & TECH
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