Classification and quality-grading treatment and resource utilization method for asbestos tailings

The invention belongs to the technical field of solid waste treatment and resource utilization, and particularly relates to an asbestos tailing treatment and resource utilization method. According to the method, the asbestos tailings are treated by adopting a multi-stage crushing and screening separation technology, on the basis that stones and machine-made sand with different particle sizes are prepared, the tail ore is ground and pulped for magnetic separation, and iron ore concentrate is recycled; a collecting agent, a foaming agent and an accelerant are added into magnetic separation tailing liquid, flotation is carried out after size mixing, and asbestos concentrate is recycled; and the flotation tailings are further treated, and the cementing material is obtained. The asbestos tailings are treated in a physical processing mode, effective recovery and utilization of useful components in the asbestos tailings are achieved, and low-carbon green treatment and all-component resource utilization of the asbest