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Novel hydrogel coal field fire preventing and extinguishing material and using method thereof

An anti-extinguishing and hydrogel technology, applied in fire protection equipment, fire rescue and other directions, can solve the problems of poor water retention and repeated water absorption, complex production process, large grouting resistance, etc., and achieve good oxygen barrier effect and less usage. , the effect of preventing air flow

Inactive Publication Date: 2020-11-10
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the patents with the publication numbers CN111214799A and CN111019047A respectively proposed the preparation method of water-based gel fire-resistant materials for mines, and achieved oxygen barrier, cooling and flame-retardant effects on pyreous coal by utilizing the water content and bonding characteristics of the materials themselves. , but due to the complex production process, high cost, poor water retention and repeated water absorption, and high initial grouting resistance, it is difficult to achieve a good control effect on the re-ignition of coalfield fires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Mass ratio of new hydrogel coalfield fire prevention and extinguishing materials

[0023] Dry material: water = 2: 100; wherein, the ratio of dry material is composite environmental protection hydrogel material: composite anti-enzyme preservative: composite halogen salt = 80: 10: 10; wherein, composite environmental protection hydrogel The ratio is instant polyanionic cellulose: high-viscosity polyacrylamide: superabsorbent resin = 50: 1.5: 48.5; wherein, the ratio of compound anti-enzyme preservative is calcium propionate: potassium sorbate: calcium benzoate: desorbed Hydroacetic acid=40:20:15:25; wherein, the proportion of compound halogen salt is calcium chloride:sodium chloride=70:30.

[0024] (2) How to use new hydrogel coalfield fire prevention and extinguishing materials

[0025] Mix the new hydrogel coalfield fire prevention and extinguishing material with a material-to-water ratio of 2:100 with water, stir for 3-5 minutes, and spray the initially formed hy...

Embodiment 2

[0027] (1) Mass ratio of new hydrogel coalfield fire prevention and extinguishing materials

[0028] Dry material: water = 3: 100; wherein, the ratio of dry material is compound environmental protection hydrogel material: compound anti-enzyme preservative: compound halogen salt = 80: 10: 10; wherein, compound environmental protection hydrogel The ratio is instant polyanionic cellulose: high-viscosity polyacrylamide: superabsorbent resin = 40: 1.5: 58.5; wherein, the ratio of compound anti-enzyme preservative is calcium propionate: potassium sorbate: calcium benzoate: desorbent Hydroacetic acid=30:30:15:25; wherein, the proportioning ratio of compound halogen salt is calcium chloride:sodium chloride=50:50.

[0029] (2) How to use new hydrogel coalfield fire prevention and extinguishing materials

[0030] Mix the coal field hydrogel fire prevention material with a material-water ratio of 3:100 and water, stir for 3 to 5 minutes, and spray the initially formed hydrogel liquid ev...

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Abstract

The invention discloses a novel hydrogel coal field fire preventing and extinguishing material, which is prepared by mixing a fire preventing and extinguishing dry material and water according to a material-water mass ratio of 2-3:100; wherein the fire preventing and extinguishing dry material is prepared from the following components in percentage by mass: 80 to 85 percent of composite environment-friendly hydrogel material, 5 to 10 percent of composite anti-enzyme preservative and 10 to 15 percent of composite halogen salt; the composite environment-friendly hydrogel material is prepared from the following components in percentage by mass: 40 to 60 percent of instant polyanionic cellulose, 0.5 to 1.5 percent of high-viscosity polyacrylamide and 38.5 to 58.5 percent of super absorbent resin; the compound type anti-enzyme preservative is prepared from the following components in percentage by mass: 30 to 40 percent of calcium propionate, 15 to 30 percent of potassium sorbate, 15 to 20percent of calcium benzoate and 15 to 30 percent of dehydroacetic acid. The novel hydrogel coal field fire prevention and extinguishing material provided by the invention has good water retention performance, which forms a waterproof film with a certain thickness on the surface of a coal body, so that the product can quickly reduce the temperature of a coal field fire area, and effectively prevents air flow, so that spontaneous combustion of coal is inhibited.

Description

technical field [0001] The invention relates to the field of surface coalfield fire prevention and extinguishing, in particular to a novel hydrogel coalfield fire prevention and extinguishing material and its application method. Background technique [0002] my country is the country with the most severe coalfield fires in the world. The amount of coal directly burned due to spontaneous combustion of coalfields reaches more than 20 million tons every year, among which Xinjiang and Shanxi are the most serious, which not only causes huge economic losses, but also seriously affects the ecological environment. harm. According to the "Coalfield Fire Extinguishment Code" (2010), the common technical processes for coalfield fire prevention and extinguishment include stripping, water injection, drilling, grouting, covering, etc. Among them, grouting and covering, as the main technology for preventing and controlling coalfield fire, are of great significance for preventing and contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00A62C3/06A62C99/00
CPCA62C3/06A62C99/0009A62D1/0064
Inventor 邸晟钧王继仁郝晋伟黄戈凡永鹏穆永亮范楠
Owner LIAONING TECHNICAL UNIVERSITY
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