D type dry powder extinguishing agent

Abstract

The invention relates to a D type dry powder extinguishing agent. The D type dry powder extinguishing agent is prepared from, by weight, 10-20 parts of a blocking agent, 50-70 parts of a foaming agent, 15-20 parts of a filling agent, 1-5 parts of a stabilizing agent, 1-5 parts of impregnating compounds and 1-5 parts of catalysts.

Description

technical field [0001] The invention relates to a class D dry powder fire extinguishing agent. Background technique [0002] With the continuous development and progress of science and technology, the raw materials and procedures of our life and industrial production have made great progress compared with the past. Special metal raw materials such as potassium, titanium, magnesium, sodium and lithium, and alkylaluminum catalysts have also become very important parts of people's lives and production. The fires caused by the above substances are called Class D fires. This kind of fire is a very rare and special kind of fire caused by the combustion of metal substances. A large number of casualties, it is quite difficult to extinguish. [0003] For Class D fires, non-combustible materials such as dry sand, diatomaceous earth, graphite, or vermiculite powder are traditionally used to cover or absorb them to block combustion. The fire extinguishing speed is slow and the efficie...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, Class D dry powder fire extinguishing agents are generally divided into two categories, one is the special type, which is only suitable for certain or certain types of metal fires, and the applicable area is small, but it often has high fire extinguishing efficiency

The second is the general-purpose type, which has a wider range of applications, but has problems such as fire extinguishing speed and anti-resurgence, especially after fire extinguishing, resurgence is easy to occur, and the site is difficult to clean up.

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