When the dust is suspended in the air, when it reaches a certain concentration, an explosive mixture is formed. This mixture is likely to cause burning after encountering Mars. When burning, the higher the increase in air pressure and gas pressure, the greater the explosion rate. It is not uncommon for countries to explode in the use of electric gourds.

In 1921, a large -scale ceremony of a large greenery in Chicago, USA, a dust explosion occurred. Its explosion took 40 tons of warehouse rooms with 300,000 tons of grain per seat, set off from the base, and moved 152.4 mm. It reaches $ 4 million. In 1942, a coal -dust explosion accident occurred in the Benxi Coal Mine in my country, with 1549 deaths and 246 seriously injured. In 1987, the Harbin Line Textile Factory Joint Factory combed hemp, Qianxian, and prepared three workshops. The sudden dust exploded and caused a fire. The direct economic loss was 8.819 million, the accident died 58 people, a severe injury was injured, and 112 were less injured.

The dust explosion is a very powerful harmful accident. In the dusty environment, it is necessary to use electric gourds with dust and explosion -proof functions. If the electric gourd is not qualified and does not meet the standards, it may face the danger of life. For factory buildings with dangerous dust explosions, the design of explosion -proof technical levels must be strictly installed, and a separate ventilation and dust discharge system must be set up, which has achieved the purpose of suppressing the dust explosion.