Mobile smoke purification machine mechanism and characteristics of dust explosion

Mobile smoke purification machine dust explosion mechanism and characteristics of the mobile soot purification machine dust explosion and gas explosion are similar, is also a kind of chain reaction, namely the dust cloud under the effect of fire induced or other conditions, the local chemical reactions release energy, dust react rapidly induce a large area and release energy, this energy to improve the air by temperature, swelling, formation strength and great shock wave. Compared with the gas explosion, dust explosion has the following three characteristics. (1) there must be a sufficient number of the dust float in the sky in the air dust explosions can occur. Dust float in the sky and the size of the particles to the moving speed of the gas. (2) dust combustion process more complicated than the gas combustion process, the induction periods long. Some dust passes through decomposition on the surface of the particles or evaporation stage, and even direct oxidation, such particles are spread process from the surface to the center. Induction time ( Catches fire to complete chemical reaction time) Up to tens of seconds for gas dozens of times. (3) dust in some critical initiation energy is big, is almost gas dozens of times. Mobile smoke purification machine on the danger of dust explosion and the following two characteristics. (1) produce secondary explosions of dust explosion, it is possible that because the initial blast blast dust deposition of dust kicked up, on explosion concentration and produce the new space form, this is called secondary explosions. The continuous explosion can cause very serious damage. (2) dust explosion produces two kinds of toxic gases: one kind is CO. The other is a explosives ( Such as plastic) Its decomposition of toxic gases. Gas generation often after an explosion caused by a large number of people and livestock poisoning casualties, must full attention.