PLANT FOR EXTRACTION OF VALUABLE MINERALS Russian patent published in 2002 - IPC

FIELD: concentration of minerals from ores and gravels by gravitational dynamic method on thin-layer flows in apparatus combined principles of concentration on standard concentration tables and on rotary tables at activation of process of decontamination of middlings. SUBSTANCE: plant for extraction of variable minerals is provided with decontamination system including decontamination deck plates fitted with riffles and guide chutes which are mounted under concentration deck plates at shift in radius relative to common axis; concentration deck plates are provided with antifriction bearing for motion over guide of wave profile; bearings of concentration deck plates are mounted under upper points; provision is made for adjustment of longitudinal and transversal inclinations of deck plates and rotation of deck plates around axis of universal joints; concentration decks are made in form of sectors and are mounted at shift above chutes for high-density fraction; high-density fraction receiving chute is mounted under decontamination deck plates at inclination towards high-density fraction discharge side; low-density fraction receiving chute consists of two parts which are interconnected and mounted in such position that guide may be located between them; bottom of low-density fraction receiving chute is inclined towards discharge of low-density fraction; drive ensures synchronous rotation of distributor of pulp and water supply system for flushing concentration deck plate and decontamination area around common axis. EFFECT: enhanced efficiency of extraction of valuable minerals; reduced toxicity of middlings. 6 dwg