METHOD AND EQUIPMENT FOR THE SEPARATION OF DISCARDED STORAGE BATTERIES

摘要

The method and the equipment are used in secondary metallurgyand in the chemical industry. They guarantee the utilization oflead discarded storage batteries by their separation in compositefractions - metal, oxide sulphate, polypropylene (polyethylene)and mixed ebonite- polyvinylchloride fraction. The method consistsin counter direction separation in an internal recirculationstream of heavy suspension of water and oxide sulphate fractionhaving 1.7-2.3 kg/dm3 density, when crushed discarded storagebatteries are fed in the middle of the stream. The device is inthe form of a rotational drum including a cylindrical part toboth ends of which conical parts are mounted as well as a feedingdevice coaxially fitted to it - tubular conveyor - which run inopposite directions. Spiral bands are mounted on the inner wall ofthe drum, and pushing screw-type blades which are submerged in thesuspension are fitted along the outer wall of the tubularconveyor.