DEVICE FOR MINERAL CONCENTRATION Russian patent published in 1997 - IPC

FIELD: mineral concentration; may be used in separation of materials in size and density in centrifugal flow. SUBSTANCE: device comprises cylinder-conical hydrocyclone for separation of initial material and recleaning chamber located in hydrocyclone lower part and recleaning cylinder-conical hydrocyclone connected with recleaning chamber through adapter branch pipe by its cylindrical part. Installed in conical part of hydrocyclone for separation of initial material is circular insert with supplying branch pipe. Supplying branch pipe is located in recleaning chamber and in conical part of hydrocyclone parallel to their axes and provided with baffle at its outlet for motion along the axis of supplying branch pipe relative to its outlet hole. Distance from outlet hole of supplying branch pipe to upper part of circular insert with supplying branch pipe amounts to 1-2 heights of circular insert. Side surface of baffle is made in the form of pseudosphere, and its upper and lower parts are made in the form of paraboloid. EFFECT: higher efficiency of separation due to additional withdrawal particles fine and also mean in size and density. 2 dwg