Sustainable Mining and Metallurgy

In this paper, the hazand sources of fire and explosion in the electrolysis workshop of an aluminum plant were identified, and the possible causes of fire and explosion accidents in the electrolysis workshop was found out by building a complete accident tree. Taking the fire accident as the top event, by analyzing the minimum cut set, the minimum path set, and the structural importance ranking of each basic event,It was found that the basic events such as furnace gang destruction, voltage supervision not in place, accidental shorting at the busbar short intersection, and so on have a greater impact on the top event. For the reasons that may lead to accidents, improvement measures were proposed from the aspects of process technology and safety management, respectively. In terms of process technology, it was recommended to strengthen the maintenance and inspection of the furnace gang, strengthen the monitoring of cathode soft connection, and strengthen the setting and maintenance of voltage monitoring system, etc. In terms of safety management, it was recommended to strengthen the staff's safety training and education, establish a perfect safety management system and operating procedures, and strengthen the regular inspection and maintenance of equipment, etc., in order to effectively prevent the occurrence of fire and explosion accidents in aluminum electrolysis plants.