System for discharging thermal decomposition residue containing carbon residue and steel wire balls

摘要

A system for discharging a thermal decomposition residue containing carbon residue and steel wire balls, the discharge system including: a discharge mechanism including a double shaft screw conveyer having respective screws thereof supported at one end thereof and located contiguous to a residue outlet of a thermal decomposition unit, a housing hermetically connected to the residue outlet of the thermal decomposition unit and enclosing the double shaft screw conveyer with ample space on the upper side thereof; a first outlet provided in a front bottom portion of the housing for discharging the carbon residue transferred by lower portions of the double shaft conveyer; a second outlet provided at the discharging free end of the double screw conveyer for discharging the steel wire balls transferred by upper portions of the double screw conveyer; a seal provided in said first outlet for shielding the interior of the housing from ambient atmosphere; and a water-sealer including a water bath, a chute connected to the second outlet at the upper end and opened into the water bath at the lower end thereof, and a conveyor for transferring the steel wire balls dropped into the water bath through the chute to a position outside the water bath.