Smoking is strictly prohibited in the workshop for the production of flour, the main reason is to prevent dust explosion. Flour and other combustible dust in the restricted space and air mixed with the formation of dust clouds, under the action of the ignition source, the formation of dust-air mixture of rapid combustion, and cause the temperature and pressure of the chemical reaction of the rapid increase.

Dust explosion is accompanied by aluminum powder, zinc powder, aluminum processing grinding powder, a variety of plastic powder, organic synthesis of pharmaceutical intermediates, wheat flour, sugar, wood shavings, dyes, gum wood ash, powdered milk, tea powder, tobacco powder, coal dust, plant fiber dust produced by the production and processing sites.

Extended information:

"Strictly prevent the enterprise dust explosion of the five provisions of the first must ensure that the workplace meets the requirements of the standards and specifications are prohibited to be set up in the violation of multi-storey houses, safety spacing does not meet the standard plant and residential areas.

The second must be in accordance with the standard specifications for the design, installation, use and maintenance of ventilation and dust removal system, every shift in accordance with the provisions of the test and standardized cleanup of dust, in the dust removal system during the shutdown and dust exceeding the standard is strictly prohibited operations, and shut down the withdrawal of people.

The third must be in accordance with the norms of the use of explosion-proof electrical equipment, the implementation of lightning, anti-static and other measures to ensure that the equipment and facilities grounded, strictly prohibit the presence of various types of open flame and illegal use of operating tools in the workplace.

The fourth must be equipped with aluminum and magnesium and other metal dust production, collection, storage of waterproof moisture-proof facilities, dust is strictly prohibited in the wet spontaneous combustion.

Article V must be strictly enforced safety regulations and labor protection system, it is strictly prohibited to employees who are unqualified for training and not in accordance with the provisions of the use of anti-dust, anti-static and other labor protection products on duty.

Baidu Encyclopedia - Dust Explosion