In recent years, Industrial dust collector has been widely used in various industries due to its high dust removal efficiency and low environmental pollution. However, due to insufficient knowledge of the contents of dust removal and explosion protection, and ignoring the explosion accidents that may occur during its application,resulting in frequent dust explosion accidents, explosion-proof dust collectors have also become the new Safe dust removal equipment.

Therefore, it is very important to analyze the conditions of explosion and make corresponding explosion-proof design.

Basic conditions of dust explosion

There are three necessary conditions to cause an explosion, three conditions.

The dust in the air reaches a certain concentration, that is, at the upper and lower limits of the explosion. Generally speaking, the upper and lower limits of the explosion are the most worrying.

Sufficient ignition energy;

Mix well with air or oxygen.

Dust explosion is a very complicated process. Affected by many factors, a general dust explosion has undergone the following development process: Dust explosion is firstly heated by the surface of the dust particles obtained by the ignition source, and then continuously heated inside or outside to melt or vaporize, spraying out hot fine proton particles Or sparks, thus forming a source of ignition for dust explosions.

At this time, the dust is in contact with the air, the internal temperature of the dust particles rises, and the gasification process of the dust particles will be more obvious.

Generally speaking, under the action of the ignition source, the air and dust will burn to a certain extent. If the two are mixed to a high degree, a dust explosion accident will occur directly, and the energy will be continuously released during the explosion to form dust. A second explosion occurs when dust comes in contact with the residue from the explosion.

Generally speaking, a dust explosion mainly depends on the diameter of the dust particles and the existence of the detonation source. The explosion caused by the dust cloud will increase the degree of explosion. Therefore, the conditions of a dust explosion are mainly reflected in: the dust concentration reaches the lower explosion limit, and the ignition energy is sufficient to cause a dust explosion. Therefore, PURE-AIR, a manufacturer of dust removal equipment such as explosion-proof dust collectors, reminds major production and processing companies to equip them with safe Explosion-proof dust collectors to effectively avoid accidents!

If you want buy fume extractor, please contact with Dongguan Pure-Air Tech Co.,ltd, E-mail: sales@pure-airtech.com.