Circular traveling grate machine for process requiring minimum gas leakage

摘要

A traveling grate consisting of individual pallets each supported on four wheels and independently connected to continuous side walls so that the pallets can pivot down away from and back toward the continuous sidewalls as the rear wheels follow a depressed portion of the trackway in the discharging zone of a retort. The wheels travel in a tunnel which is isolated from the processing zone of the grate retort but is in fluid communication with the charging and discharging zones. The processing zones are also separated from the remainder of the retort by transverse seals formed by false windboxes. Gas leakage from the processing zone is minimized by the tunnel-encapsulation of the retort's processing zone.