Discussion on Autoignition Mechanism and Prevention Method of Slag Spontaneous Combustion of A Molybdenum Nickel Ore in Zunyi
In order to carry out comprehensive treatment of molybdenum nickel ore slag spontaneous com-bustion,the mineral composition,element content,and main self igniting gas composition of molybdenum nickel ore slag were identified through on-site investigation and sample collection analysis.It was preliminarily deter-mined that the igniting material for self igniting molybdenum nickel ore slag was pyrite,and the combustible ma-terial that provided sustainable combustion was mainly carbon.When the slag's own properties met the require-ments,and the oxygen and heat supply conditions reached a certain balance,Spontaneous combustion will occur;Proposed comprehensive treatment measures such as"cooling+cutting off oxygen supply channels","grouting+covering",and prevention suggestions for slag that has not yet self ignited.The engineering verifica-tion governance has achieved good results,and the research results provide certain solutions and ideas for similar engineering problems.
万方数据
维普
