Chlorite-smectite mixed layer clay mesh gel foam mud fire prevention and extinguishing agent

Abstract

The invention discloses a chlorite-smectite mixed layer clay mesh gel foam mud fire prevention and extinguishing agent. The main points of the technical scheme are as below: the fire prevention and extinguishing agent comprises chlorite-smectite mixed layer clay composite flame retardant foaming agent, attapulgite clay powder with air purifying function, inorganic fiber spraying cotton, chlorite-smectite mixed layer clay powder, coal gangue powder, expanded perlite powder, sodium alginate and water. The ingredients for the chlorite-smectite mixed layer clay mesh gel foam mud fire prevention and extinguishing agent are input into a plow harrow type feed mixer, and subjected to high-speed stirring to form the chlorite-smectite mixed layer clay mesh gel foam mud fire prevention and extinguishing agent. The mesh gel foam mud is sprayed into a flaming coal seam by an inorganic fiber coating machine, so as to facilitate the formation of a holistic mesh gel foam mud film in the fire prevention and extinguishing process, and the film always covers and adheres on the ledge surface, rapidly isolates the contact of burning coal seam with air, prevents burning of the coal mine, and avoids after-combustion of the coal seam, so as to achieve the goals of flame retardancy and fire prevention. The fire prevention and extinguishing agent is applicable to fire prevention and extinguishing in coal mine, mine operation area and forest.

Description

technical field [0001] The invention relates to an anti-fire extinguishing agent, in particular to an anti-fire extinguishing agent for green smear clay reticulated gel foam mud. Background technique [0002] Fully mechanized top-coal caving mining has the advantages of high yield, high efficiency, and low consumption, and has been widely used in many coal production bases in my country. However, due to the high mining intensity of this coal mining method, there is a lot of residual coal left in the goaf, the height of the fall is large, and the air leakage is serious. A series of problems such as fire, gas, and dust that are difficult to solve often occur, especially fire. [0003] Foam fire extinguishing agents are divided into chemical foam, air foam, fluoroprotein foam, aqueous film-forming foam and alcohol-resistant foam. [0004] Chinese Patent Publication No. CN 102614615A, publication date: August 01, 2012, titled "a composite foam fire extinguishing agent for coal ...

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the above-mentioned patents are: although the foam multiple of the fire extinguishing agent can reach 20 to 200 times, and the foam stability time is ≥ 2.5 hours, it can only make the "inert gas carbon dioxide foam spread in the fire zone and fill its space in a short time." , so that the oxygen concentration in the fire area drops rapidly, causing the fire area to suffocate due to lack of oxygen", it cannot really isolate the contact between the burning coal seam and the air, prevent the coal mine from continuing to burn, avoid the re-ignition of the coal seam, and achieve flame retardancy and fire prevention. Purpose

Ammonium bicarbonate is used as the main raw material of the fire extinguishing agent. During the fire extinguishing process, a large amount of ammonia gas will be released, which pollutes the air in the mine and is not conducive to the health of operators.

[0006] my country's Inner Mongolia, Sichuan, Guangxi, Qaidam Basin and Tarim Basin all store a large amount of green smectite clay, but these green smectite clays are rarely used in actual production products