Breaking and separation integrated comprehensive recovery system of chrysotile tailings

Abstract

The invention provides a breaking and separation integrated comprehensive recovery system of chrysotile tailings, which is characterized in that a fan is connected with a pulverizing host and a duster respectively by a three-way valve; 4-8 sand discharge ports are annularly formed at the bottom of the pulverizing host; an outlet of the pulverizing host is connected with a cyclone collector by a pipeline; an inlet of a screw conveyer is connected with an outlet of the cyclone collector; an outlet of the screw conveyer is conveyed to a plane revolving screen or a plane shaking screen to achieve recovery of chrysotile; integrated functions of breaking and separation are achieved; a weak magnetic separator, a ball mill and a wet weak magnetic separator are connected sequentially to form a magnetic separating system of magnetite; and the magnetic separating system is used for magnetic separating of the magnetite from dust. According to the recovery system, the sand discharge ports in the pulverizing host separate tailing waste, two production processes of grinding & asbestos fiber opening and separation are organically combined into a whole, the production cost is lowered, the energy conservation and consumption reduction are achieved, and the magnetic separating system weakly separates the magnetite to produce iron ore concentrates.

Description

Technical field [0001] The invention relates to a system for comprehensively recovering useful minerals chrysotile and magnetite from chrysotile asbestos tailings, in particular to an integrated comprehensive recovery system for chrysotile asbestos tailings crushing and sorting, and belongs to the technical field of comprehensive utilization of tailings. Background technique [0002] At present, domestic and foreign asbestos beneficiation adopts the traditional process technology route of segmented crushing and segmented suction selection, namely: drying → crushing → uncovering cotton → suction selection → sand removal and dust removal → classification → purification dry air separation process. Among them: the drying part generally adopts natural air drying, drum drying, etc.; crushing and uncovering cotton generally use jaw crushers, cone crushers, impact crushers, hammer crushers, wheel mills and other coarse, medium and fine crushing equipment or Cotton opener, etc.; the sucti...

AI Technical Summary

Problems solved by technology

However, in the production process of this method, chrysotile needs dehydration, drying and other processes, and there are many disadvantages such as high energy consumption for dehydration and drying, long cycle and complicated process.

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