Fire extinguishing coagulant-thickener of caustic sludge colloid

A thickening agent and colloid technology, applied in fire protection equipment and other directions, can solve the problems of affecting fire extinguishing effect, affecting grouting operation, and easy sedimentation of the slurry, so as to improve the fire extinguishing effect of grouting, improve the suspension, and be less prone to bumping. Effect

Inactive Publication Date: 2007-01-03
FUDAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

Most coal mines with a risk of spontaneous combustion have a ground grouting system. Generally, the greater the concentration of the slurry, the better the fire extinguishing effect, but the high-concentration s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example: 1. Prepare a slurry that can be used for coal seam face fire prevention. In each cubic meter of mixed slurry:

[0020] 600kg of fly ash or loess with an average particle size of less than 1mm

[0021] Alkali slag powder 120kg

[0022] Linear polymer material 0.3kg

[0023] Super absorbent silicon aluminum inorganic material 12kg

Example Embodiment

[0024] Example 2. Prepare coal seam working face fire extinguishing slurry, in each cubic meter of mixed slurry:

[0025] 700kg of fly ash or loess with an average particle size of less than 1mm

[0026] Alkali slag powder 160kg

[0027] Linear polymer material 0.6kg

[0028] High water absorption silicon aluminum inorganic material 16kg

Example Embodiment

[0029] Example 3. Prepare coal seam working face fire extinguishing slurry, in each cubic meter of mixed slurry:

[0030] 800kg fly ash or loess with an average particle size less than 1mm

[0031] Alkali slag powder 140kg

[0032] Linear polymer material 0.4kg

[0033] High water absorption silicon aluminum inorganic material 14kg

[0034] The above-mentioned silicon-aluminum inorganic material can be ultrafine fly ash, and the linear polymer material is a copolymer of acrylic acid and ethylene acetate.

[0035] The fire extinguishing colloids prepared in the above examples all have good performance, and the fire extinguishing effect is very ideal.

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Abstract

The present invention belongs to the field of fire extinguishing technology, and is especially one kind of fire extinguishing coagulant-thickener of caustic sludge colloid. The fire extinguishing coagulant-thickener consists of superfine caustic sludge powder, linear polymer material containing hydrophobic hydroxyl group or carboxyl group, and inorganic silica and alumina material. The fire extinguishing coagulant-thickener is mixed with fire extinguishing base material to form colloid, and may swell after being mixed with water to form mixture slurry with great heat absorption and high heat stability. It has excellent use effect in preventing spontaneous ignition of coal bed and extinguishing fire of coal bed. The present invention uses industrial waste as main material and has rich material source and low cost.

Description

technical field [0001] The invention belongs to the technical field of fire extinguishing and disaster prevention, and in particular relates to a colloidal fire extinguishing accelerator thickening agent used for coal mine fire extinguishing. Background technique [0002] Colloid fire extinguishing for coal mine fires has the characteristics of fast fire extinguishing speed, high efficiency, and not easy to re-ignite after fire extinguishing. At present, colloid fire extinguishing for mine fires generally uses a liquid base material mixed with an aqueous solution of a solid coagulant (or mixed with a slurry such as loess) and injected into the fire area, and the mixture forms a gel in the fire area to achieve the purpose of fire extinguishing. The colloidal fire extinguishing material used generally adopts silica gel, and the additive material per cubic meter is 80-150kg. The conditions are relatively poor, and this material has great limitations in fire extinguishing. Als...

Claims

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Application Information

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IPC IPC(8): A62D1/00
Inventor 马建敏王群力
Owner FUDAN UNIV
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