Fire-extinguishing mixture

Abstract

The invention relates to a fire-extinguishing mixture used for retarding fire spreading, in particular to a fire-extinguishing mixture which can form the gel barrier layer and have high viscosity. The fire-extinguishing mixture is prepared by mixing super absorbent polymer (SAP) with water-soluble thickener and water-soluble foaming agent in specific proportions so that when mixed in water, SPA absorbs moisture to form gel to be covered on the surface of a blazer and cut off oxygen supply needed by the fire source; the water-soluble thickener is used to increase the adhesion of gel and reducecracks generated in the gel barrier layer on the surface of the blazer; and water-soluble foaming agent is used to generate foam to increase the vertical adhesion of the gel barrier layer, further prolong the time that the gel barrier layer adheres to the surface of the blazer, overcome the problem that the traditional fire-extinguishing method using water or foam has poor adhesion or retarding property, and greatly improving the extinguishing effect.

Description

technical field [0001] The present invention relates to the technical field of fire extinguishing, specifically refers to a fire extinguishing mixture with high viscosity and high hysteresis, so as to form a gel barrier layer with excellent adhesion on the surface of a combustion body, which can effectively achieve the fire extinguishing effect. Background technique [0002] When a fire breaks out, under the influence of high temperature, flames and thick smoke, it is very easy for trapped people to be unable to pass through the fire scene, thus often causing extremely serious loss of life and property. And how to quickly extinguish and block the fire source is the only way to reduce casualties and economic losses. The existing fire classification mainly includes Class A fires (ordinary fires, such as wood, paper, cotton yarn, cloth, plastics and other flammable substances), Class B fires (oil fires, such as solvents, oils, liquefied gas, etc. series of substances) and Clas...

AI Technical Summary

Problems solved by technology

[0003] The existing fire extinguishing methods and materials for the aforementioned Class A fires mainly use water flushing, or use chemical foam or air foam, etc., but taking water flushing as an example, the downward flow of water is extremely fast and easy. Evaporation, so it cannot cover the surface of the burning body for a long time, nor can it effectively extinguish the flames, making the fire extinguishing process time-consuming and labor-intensive, and the surrounding environment will be seriously damaged after being washed by water, which will invisibly expand economic losses

As for the part of chemical foam or air foam, although the foam attached to the surface of the combustion body is produced through a special nozzle to prevent the contact between the combustion body and oxygen in the air and produce a blocking effect, it is also suitable for Class B fires, but the foam is easy Due to the high temperature or the absorption of water-soluble solvents, the foam will burst, which will affect the overall fire extinguishing effect.

[0004] As for Class B fires, in addition to using the aforementioned foam to extinguish the fire, there are also dry powders, but the shielding effect is not good, and these fire extinguishing materials are also unpredictable, which may damage other equipment in the fire scene, and cause Possibility of environmental pollution

[0005] And although the industry provides different fire extinguishing materials such as China Taiwan Patent No. 589357, No. 1267395, No. 280887 and U.S. Patent No. US 5,849,210 and No. Or due to factors such as poor barrier properties, insufficient vertical adhesion, and insignificant mutual adhesion, the effect of fire extinguishing is affected tangible or intangible.