firefighter bunker gear ordinary powder fire extinguisher dry powder extinguishing agent composed mainly by active fire fighting components, hydrophobic ingredient, inert fillers, hydrophobic component silicone oil and hydrophobic silica, a wide variety of inert filler, mainly from the anti-vibration real, caking, improve dry powder the role of sports performance catalytic dry powder silicone oil polymerization, and improve the total capacity of the foam extinguishing agent. Such common dry powder extinguishing agent at home and abroad has been very widely used.
Domestic production of Firefighter Bunker Gear products: ammonium phosphate, sodium bicarbonate, sodium chloride, potassium chloride powder extinguishing agent. Dry powder fire extinguishers each extinguishing particles there are an upper critical diameter less than the critical diameter of all particles from extinguishing effect, greater than the critical diameter of particles extinguishing efficiency is drastically reduced, but its large momentum, to generate the air through the air to small particles kinetic tension, forcing small particles followed, toward the center of the flame, but not yet reached the flame and hot air was blown away, reducing the efficiency of fire. Firefighter Bunker Gear commonly used in dry powder extinguishing agent particle size between 10 ~ 75μm particles diffuse poor, more than a relatively small surface area. Quantitative dry powder having total surface area is small, a larger mass of individual particles, sedimentation rapid, slow decomposition when heated, resulting in its ability to capture radicals is small, so the fire extinguishing capability is restricted to a certain extent, limit the powder extinguishing agent to use the range. Powder extinguishing agent particle size and its extinguishing powder fire extinguisher performance directly associated with the greater extinguishing components critical particle size, extinguishing the better. So, dry powder fire extinguisher prepared in the fire space can be uniformly dispersed ultrafine extinguishing powder suspended to ensure fire-fighting component particle activity, lower unit space usage of the extinguishing agent is a very effective means to improve the performance of dry powder fire extinguishing agent.