The selection of explosion-proof dust collector is mainly based on two aspects: dust properties and economy.

The selection of explosion-proof dust collector is mainly based on the two aspects of dust properties and economy. The types of flammable and explosive dust include agricultural product dust, carbon dust, chemical dust, plastic dust, etc. Each type of dust contains a variety of dusts with different properties. The properties, lower explosion limit concentration, maximum explosion pressure, explosion index and hazard level of dust particles of different diameters are different. Therefore, it is necessary to select the explosion-proof valve model and the size and quantity of the explosion relief device through strict calculation based on the particle diameter and properties of the dust.

From economic considerations, wet explosion-proof dust collectors are preferred, but wet dust collectors are only suitable for dust that is hydrophilic and does not easily react chemically with water, such as aluminum powder, iron powder, nylon dust and high temperature or high humidity dust. Bag type explosion proof dust collectors are more widely used. In addition to high temperature or high humidity dust, most other dust filtration and collection can be applied, such as wood powder, aluminum powder, starch and other dusts.

It should be noted that different types of combustible dust cannot be used in the same dust collector. According to the nature of the dust, when using a bag-type explosion-proof dust collector, inert dust or gas can be added to the main dust collection pipeline to reduce the concentration of flammable and explosive dust inside the dust collector. The function of the dust collector can also be expanded according to the characteristics of the dust, such as wood dust. The wood dust can be recycled and reused. In order to facilitate the collection of wood dust, the bottom of the bag dust collector can be raised and enlarged. After the dust is stored to a certain volume, the dust can be recycled centrally.

There are other explosion-proof measures in actual use, such as explosion suppression devices, Mars detectors, automatic sprinkler fire-extinguishing devices, etc. Explosion-proof measures should be reasonably selected based on the nature of the dust, installation location, and actual application characteristics to achieve safety and reliability.