The identification and control of hazard of coal dust explosion

Aiming at the present situation of accident frequency of coal dust explosion in China, based on the hazard theory studied by previous scholars, according to the energy transfer theory and accident-causing theory, the further discussion was carried on to the hazard theory from the angle of the system security. The hazard was defined as the elements of what can effect or cause the accidental release of energy or toxicity so that destroy the system security and lead to accidents, which was divided into three types, then a interaction accident-causing model was got among them. And took coal dust explosion as example, the identification and control of hazard had been applied, accordingly, concrete measures which could contain the frequent accidents of coal dust explosion in coal mine were got.