Slide dampers for a vertical type of apparatus for continuously heat-treating solid waste

Claim 1

A slide damper system used for a vertical type of furnace for continuously heat-treating non-particulate matter to recover the resulting combustive gases and/or liquids, comprising a gas sealing slide damper disposed in the upper portion of the furnace for sealing the interior of the furnace from the open air; at least two V-shaped slide damper means having a predetermined angle of inclination to a horizontal axis and movable at the same predetermined angle of inclination and vertically disposed below said gas sealing slide damper and spaced from each other in the furnace; each said slide damper means having a pair of plates abuttable at one end thereof to provide a retention means for the non-particulate matter, one plate of which is inclined generally downwardly and another plate of which is inclined generally upwardly, said plates define the V-shaped dampers and aid in charging the non-particulate matter into a dry-distillation chamber; and means for sensing and controlling the opening and closing actions of such slide damper means at the same predetermined angle of inclination for preventing two or more said slide damper means from opening simultaneously and for preventing the slide damper means from becoming clogged with residue of the charged non-particulate matter; and said slide damper means including means for heat-resisting.