1, combustion and explosion accidents and preventive measures
The three conditions for the combustion of the centrifuge are: combustibles, oxidants and ignition sources. And the temperature of the material has an important impact on the combustion explosion.
1.1 cause of the accident
1.1.1 In the case where the temperature of the scraper centrifuge material is lower than its flash point or the temperature of the non-scraper centrifuge is equal to or higher than its flash point, the possibility of a combustion explosion is greater.
1.1.2 When the material temperature of the scraper centrifuge is equal to or higher than its flash point, the possibility of a combustion explosion is extremely high. The following are the same as the "
1.1.3 centrifuge due to uneven material, eccentric operation, the drum load is too heavy, resulting in friction between the drum and the chassis fire, causing the machine flammable gas explosion.
1.1.4 centrifuge cutting tube fastening bolts loose, collided with the pusher to produce a spark, causing the machine flammable gas explosion.
1.1.5 flammable gas leaked into the centrifuge, the formation of explosive mixed gas, when the centrifuge high-speed operation, due to the occurrence of static spark and explosion.
1.1.6 centrifuge use time is too long, serious corrosion, so that the drum becomes thin and lead to drum operation when the explosion.
1.1.7 Violation of operating procedures, over-current, over-temperature, overpressure operation or smoking in the post and detonated.
1.1.8 Overspeed operation causes drum explosion. The speed of the drum is generally high, such as over speed operation (more than the maximum safe speed) and make the stress exceeds the allowable stress of the drum material, will cause the drum explosion.