METHOD OF FINAL EXTRACTION OR MINERALS FROM PULP FEED-LINE OF MINERAL RAW MATERIAL CONCENTRATION WASTES AND PLANT FOR FINAL EXTRACTION OF USEFUL COMPONENTS FROM PULP FLOW Russian patent published in 2000 - IPC

FIELD: equipment for concentration of materials and extraction of useful components; mining and chemical industries; manufacture of building materials from mineral concentration wastes. SUBSTANCE: plant for final extraction of useful components from pulp flow includes pulp feed-line, hydraulic conical screen, hydraulic classifier for separation of granular material according to size with inlet and outlet branch pipes and device for thickening and dehydration of products of classification and pump with water receiver. Plant is provided with bypass pipe line whose starting end is brought in communication with bottom portion of pulp feed-line and end of bypass pipe line is brought in communication with upper portion of pulp feed- line to which water clarified after separation is fed. Inlet branch pipe of conical hydraulic screen is connected with starting end of bypass pipe line; outlet branch pipe is connected with hydraulic classifier whose outlet branch pipe is brought in communication with water receiver of pump; outlet of pump is brought in communication with end of bypass line. EFFECT: enhanced efficiency of final extraction of useful components; reduced consumption of labor; low power requirements. 3 cl, 4 dwg