Waste rock can be processed to a desired gradation by crushing and sizing, like any other source of aggregate. The hardness of the waste rock is determined by the rock type. For example, iron ores are often found in hard igneous or metamorphic rock formations, so waste rock from iron or taconite ore processing is usually hard and dense.The solid waste generated during the mining period is mainly waste soil separated from soil and rock after blasting, sedimentation tank sludge, and domestic garbage generated by employees. Solution It is necessary to establish a waste slag yard for classified storage to avoid the loss of control of the slope of the slag yard and the loss of.