Special fire-fighting long-distance fire extinguishing particles and preparation method thereof

Abstract

The invention belongs to a fire extinguishing material and a preparation method thereof, and particularly relates to special fire-fighting long-distance fire extinguishing particles and a preparationmethod thereof. Raw materials adopted by the special fire-fighting long-distance fire extinguishing particles are ceramsite prepared from perlite, vermiculite, shale, fired coal gangue, biological sludge, clay and fly ash, wherein the particle size of the ceramsite is generally 2-15 mm, the maximum particle size of the ceramsite is 20 mm, the internal structure of the ceramsite is characterized bybeing fine honeycomb micropores, and the ceramsite is composed of 49-51 parts by weight of optional one of the raw materials; sodium bicarbonate or potassium bicarbonate, triammonium phosphate, diammonium hydrogen phosphate, ammonium dihydrogen phosphate and a mixture of the sodium bicarbonate or potassium bicarbonate, triammonium phosphate, diammonium hydrogen phosphate and ammonium dihydrogen phosphate are used. According to the special fire-fighting long-distance fire extinguishing particles and the preparation method thereof, the fire extinguishing particles granulated by different materials are respectively adopted according to the stacked material properties of fire scenes, so that the physical effect of quickly striking, striking, burying and covering a fire source and the chemicaleffect of inhibiting flame combustion are achieved.

Description

technical field [0001] The invention belongs to fire-fighting and fire-extinguishing materials and a preparation method thereof, in particular to a special fire-fighting long-distance fire-extinguishing particle and a preparation method thereof. Background technique [0002] At present, fire extinguishing agents at home and abroad include water, foam, powder, gas, etc. When fires occur in hazardous chemical enterprises, warehousing and transportation, oil stations, and large-scale fires in forests and grasslands, aircraft are generally used to throw powdered fire extinguishing agents and water. Water is easily heated and evaporated into water vapor, and powdered fire extinguishing agents are easy to It drifts with the heat wave transpiration and drifts with the wind, so it is difficult to achieve accuracy and efficiency. Fire-fighting aircraft work at high altitudes, and the fire-fighting effect is not good; ultra-low-altitude operations are extremely dangerous. When unkno...

AI Technical Summary

Problems solved by technology

The fire department in Tianjin is not familiar with the stored dangerous goods, and has not formulated corresponding fire fighting plans for dangerous goods of different natures. They directly use water cannons and water cannons on fire trucks to extinguish and cool down the fire. As a result, the combustion and explosion are intensified, resulting in great loss

On February 28, 2012, the heat-conducting lubricating oil leaked and caught fire at the discharge valve at the bottom of No. 1 reactor of Hebei Kerr Company located in Zhaoxian Industrial Park, Shijiazhuang City, causing local heating of the reactant guanidine nitrate and unreacted ammonium nitrate in the kettle , decomposed rapidly and exploded, killing 25 people and leaving 4 missing

On April 06, 2015, an explosion occurred in Fujian Gulei PX Chemical Plant. The heavy oil burned for a day and a night. Fire sprinklers could only cool down the surrounding areas of the explosion area. The distance and range are extremely limited, only up to 3-5 meters, atomized and drifted with the wind and heat waves, and did not achieve the fire extinguishing effect