Composite colloid gelling fire preventing and extinguishing material and use method thereof

A fire prevention and gelling technology, applied in fire prevention equipment, etc., can solve the problems of loss of treatment effect, excessive waste, slurry loss, etc., and achieve the effects of overcoming slow dissolution speed, preventing natural ignition, and reducing loss rate

Active Publication Date: 2019-05-17
SHAANXI COAL & CHEM TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inert gas techniques include nitrogen or CO infusion 2 Gas, and special equipment can also be used to perfuse liquid nitrogen or liquid CO 2 To treat the method, liquid nitrogen or liquid CO 2 The temperature is low, it can absorb the temperature of the fire area, and it can suppress or control some fire areas, and the control effect is better than nitrogen or CO injection. 2 gas, but liquid nitrogen or liquid CO 2 After gasification, its treatment effect and infusion of nitrogen or CO 2 The gas is basically the same, and it is discharged with the air flow, losing its governance effect
The grouting technology mostly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Calcium carbonate accounts for 3 percent, anhydrous magnesium chloride accounts for 0.5 percent, bentonite accounts for 46.5 percent, and sodium polyacrylate accounts for 50 percent, and is evenly mixed to prepare a composite colloidal gelling material in terms of mass percentage.

[0019] Water and loess are made into slurry according to the weight ratio of 1:1, and the fluidity diameter of the slurry is 203mm. In the prepared slurry, 2% of the composite colloidal gelling material of the slurry weight is evenly added while stirring according to the weight ratio. Continue to stir for 1min after completion, and the fluidity diameter of the slurry becomes 76mm.

Embodiment 2

[0021] Calcium carbonate accounts for 3 percent, anhydrous magnesium chloride accounts for 0.5 percent, bentonite accounts for 46.5 percent, and sodium polyacrylate accounts for 50 percent, and is evenly mixed to prepare a composite colloidal gelling material in terms of mass percentage.

[0022] Water and loess are made into slurry according to the weight ratio of 1:1, and the fluidity diameter of the slurry is 203mm. In the prepared slurry, 5% of the composite colloidal gelling material of the slurry weight is evenly added while stirring according to the weight ratio. Continue to stir for 1min after completion, and the fluidity diameter of the slurry becomes 71mm.

Embodiment 3

[0024] According to mass percentage, 20% of calcium carbonate, 5% of anhydrous magnesium chloride, 50% of bentonite and 25% of sodium polyacrylate are uniformly mixed to prepare a composite colloid gelling material.

[0025] Water and loess are made into slurry according to the weight ratio of 1:1, and the fluidity diameter of the slurry is 203mm. In the prepared slurry, 2% of the composite colloidal gelling material of the slurry weight is evenly added while stirring according to the weight ratio. Continue to stir for 1min after completion, and the fluidity diameter of the slurry becomes 119mm.

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PUM

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Abstract

The invention relates to a composite colloid gelling fire preventing and extinguishing material and a use method thereof. The composite colloid gelling fire preventing and extinguishing material is prepared from the following raw materials in percentage by mass: 3 to 40 percent of calcium carbonate, 0.5 to 5 percent of anhydrous magnesium chloride, 20 to 50 percent of bentonite and 20 to 50 percent of sodium polyacrylate. In order to solve the problems that by a traditional grouting method, the loss can easily occur, and the fire area cannot be effectively covered, a mixture of the calcium carbonate, anhydrous magnesium chloride, bentonite and sodium polyacrylate is used; the reasonable high polymer material molecular weight range is realized; in the use process, the composite colloid gelling fire preventing and extinguishing material is added into serous fluid; the flowability of the serous fluid can be reduced; the viscosity is increased. The problems of slow dissolution velocity andserious waste of high molecular weight materials, poor gelling effect and serious serous fluid loss phenomenon of low molecular weight or low viscosity materials are solved; an efficient new method and new path with low cost is provided for mine grouting fire preventing and extinguishing.

Description

technical field [0001] The invention relates to a mine spontaneous fire prevention and control material, in particular to a composite colloidal gel fire prevention and extinguishing material and its application method. Background technique [0002] After spontaneous combustion occurs in coal mines, inert gas technology or grouting technology is mostly used to treat it. Inert gas techniques include nitrogen or CO infusion 2 Gas, and special equipment can also be used to perfuse liquid nitrogen or liquid CO 2 To treat the method, liquid nitrogen or liquid CO 2 The temperature is low, it can absorb the temperature of the fire area, and it can suppress or control some fire areas, and the control effect is better than nitrogen or CO injection. 2 gas, but liquid nitrogen or liquid CO 2 After gasification, its treatment effect and infusion of nitrogen or CO 2 The gas is basically the same, and it is discharged with the air flow, losing its governance effect. The grouting tech...

Claims

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Application Information

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IPC IPC(8): A62D1/00
Inventor 黄克军朱兴攀王苏健邓增社杨琛
Owner SHAANXI COAL & CHEM TECH INST
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