Combustibles, oxidizers, ignition sources, dust dispersion, limited space. Flour explosion refers to flour particles encountered in an open flame explosion phenomenon. The production process produces a large number of flour of very fine dust suspended in the air, reaching higher concentrations such as 9.7g per cubic meter of air containing flour, encountered a fire, sparks, electric arcs or the appropriate temperature, it will instantly combust, the formation of a violent explosion.

Five conditions of the flour explosion

Dust will become "explosives", is due to the dust has a large surface area. Compared with the lump material, the dust of chemical activity, contact with the air area is large, can adsorb more oxygen molecules, resulting in oxidative exothermic process.

When the conditions are appropriate, if one of the dust is ignited by the fire, it will be like an atomic bomb as a chain reaction, resulting in an explosion.