DEEP CONE THICKENER WITH UNDERFLOW CONCENTRATION RAPID AUTO-ADJUSTMENT

摘要

A deep cone thickener with an underflow concentration rapid auto-adjustment pertains to the technical field of mining tailing disposal. The thickener includes a shell body, a dilution flocculation system, a shearing dewatering system, an underflow circulatory system, and an auto-control system. The shell body includes a thickener pool wall, a cone body, and a collection cylinder. The dilution flocculation system includes a feed pipe, a flocculant charging pipe, and a central feed well. The shearing dewatering system includes a drive motor, a drive shaft, and a rake. The underflow circulatory system includes discharging valves, underflow pumps, circulatory pipes, and a concentration meter. The auto-control system includes a PLC control system. During the underground paste filling, the dilution flocculation system and shearing dewatering system can form a paste slurry. When there is no need for underground backfill, the underflow circulatory system is used to lower the underflow concentration rapidly.