Patent ID: 8486231

Claim:
A pyrolytic energy recovery system for pyrolyzing wastes to obtain oil, the system comprising: a recovery furnace formed of multi-walls of a front, a rear, sides, a ceiling and a floor including insulating layers; a heat plate for dividing an inner space of the recovery furnace into upper and lower parts and having a height lowered from a center part to both sides thereof and formed with at least one ridge and valley in a longitudinal direction thereof; a heating chamber disposed under the heat plate and heated by a burner installed aside the recovery furnace; a pyrolysis chamber disposed over the heat plate and pyrolyzing the wastes introduced through a recyclable material inlet port installed at an upper part of a front or rear surface of the recovery furnace using a large amount of heat transferred from therearound; a heating pipe line installed inside the front and rear surfaces of the recovery furnace in a maze shape such that the heat induced from the heating chamber flows from a lower side to an upper side along inner surfaces of front and rear walls of the recovery furnace in a zigzag manner, and then, returns into the heating chamber at a pressure lower than a predetermined pressure and is discharged to the exterior at a pressure higher than the predetermined pressure; a plurality of rotaries installed in the pyrolysis chamber under the recyclable material inlet port in a longitudinal direction to evenly distribute recyclable materials introduced through the recyclable material inlet port; a residual discharger having primary residual conveyance screws longitudinally installed along the valley of the heat plate and rotated to convey the residual toward the center part from both sides, a residual hopper installed at a separate space in the heating chamber such that the residual conveyed to a center part of the heat plate through the primary conveyance screws is lowered to be gathered, and a secondary residual conveyance screw installed from the residual hopper to the exterior of the recovery furnace and discharging the residual accumulated in the residual hopper to the exterior of the recovery furnace; and a condenser separately installed at the exterior of the recovery furnace and receiving vaporized extracts generated through pyrolysis of the recyclable material in the pyrolysis chamber to exchange heat with the extracts to extract liquefied recovery oil.