We all know the continuous development of our time, which cannot be separated from the progress of science and technology.

Today, let's take a look at the dry powder fire extinguishers in dry powder fire extinguishers. In fact, dry powder fire extinguishers can be divided into categories: ordinary dry powder fire extinguishers and superfine dry powder fire extinguishers.

Let's first look at ordinary dry powder fire extinguishers. This fire extinguisher is mainly composed of active fire extinguishing components, hydrophobic components, and inert fillers. The hydrophobic components mainly include silicone oil and hydrophobic white carbon black. Improve the performance of dry powder, catalyze the polymerization of dry powder silicone oil, and improve the compatibility with foam fire extinguishing agents. This type of ordinary dry powder fire extinguishing agent has been widely used at home and abroad.

The fire extinguishing principle of this fire extinguisher is that by spraying powder, the concentration is dense and the particles are fine. When it is covered with solid combustion materials, it can form an isolation layer that hinders combustion. At the same time, non-flammable gas is precipitated, which reduces the oxygen concentration in the air and extinguishes the flame. .

The fire extinguishing component of the dry powder fire extinguishing agent is an inactive substance of the combustion reaction. When it enters the flame in the combustion area, the free radicals generated by the decomposition react with the free radicals such as H and OH generated in the flame combustion reaction to capture and terminate the combustion. The free radicals produced by the reaction reduce the rate of the combustion reaction. When the dry powder concentration in the flame is high enough, the contact area with the flame is large enough, and the rate of free radical termination is greater than the rate of combustion reaction generation, the chain combustion reaction is terminated, and the flame is extinguished.

Dry powder fire extinguishers are suitable for the initial fires of oil, flammable, combustible liquids, gases and charged equipment; in addition to the above types of fires, ammonium phosphate dry powder fire extinguishers can also extinguish the initial fires of solid substances. But neither can extinguish metal burning fires.

The fire extinguishing effect is obvious, and it is a very direct manifestation. According to different fire causes, special solutions are provided.