Exploration and Practice of Green and Efficient Large-scale Utilization Technology of Iron Tailings in Shougang Mining Industry
In order to solve the problem of waste of iron tailings resources and environmental pollu-tion,Shougang Mining Company has carried out a series of comprehensive utilization research and produc-tion practice of iron tailings from the green,efficient and large-scale utilization of iron tailings.Aiming at the problem of large-scale disposal of iron tailings,the tailings reconcentration technology of tailings reser-voir is explored.Iron metal is recovered by reconcentration process,and tailings are used to produce con-struction sand,which effectively alleviates the problem of land occupation and resource waste of tailings,and reduces the pollution to the surrounding environment.By using tailings to fill the goaf,the zero dis-charge of tailings is realized,the filling process is optimized,and the resource utilization efficiency of the mine is improved.The use of tailings to prepare building materials and ecological restoration materials has realized the high-value resource utilization of ultra-fine tailings.The application of the whole process inte-grated tailings disposal process combines the efficient concentration of tailings,dry discharge and building sand extraction technology to realize the large-scale consumption and safe disposal of tailings resources.The above series of technical exploration and practice have significantly improved the comprehensive utilization rate of tailings resources,extended the service life of tailings reservoirs,and achieved remarkable compre-hensive benefits,which can provide reference for the comprehensive utilization of iron tailings in the indus-try.