A dry chemical fire extinguisher is a type of fire extinguisher. Ordinary dry powder fire extinguishing agent is mainly composed of active fire extinguishing components, hydrophobic components and inert fillers, hydrophobic components mainly include silicone oil and hydrophobic silica, and there are many types of inert fillers, which mainly play the role of anti-vibration and agglomeration, improve the kinematic performance of dry powder, catalyze the polymerization of dry powder silicone oil and improve the compatibility with foam fire extinguishing agent. This kind of ordinary dry powder fire extinguishing agent has been widely used at home and abroad. Due to the large specific surface area and high activity of ultra-fine fire extinguishing particles, they can be suspended in the air for several minutes to form a relatively stable aerosol, so not only the fire extinguishing efficiency is very high, but also the use method is completely different from the general traditional dry powder fire extinguishing agent, which is similar to the halide drowning fire extinguishing.
