Fluidized bed furnace and method for processing waste

• Main Authors: IMAMURA KOHKI, NAKAMURA YUKIHIRO, KIRA MAKOTO, SAITOH HIROSHI, ISHIKAWA RYUICHI, YAMAGUCHI SHIGERU
• Format: Patent
• Language: Chinese; English
• Published: 07.08.2013
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; DISPOSAL OF SOLID WASTE; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING; WEAPONS

The present invention relates to: a fluidized bed furnace which is capable of continuously performing adequate processing of waste, combustion of which is likely to be unstable; and a method for processing waste. A fluidized bed furnace (1) is provided with: a moving bed (21) that thermally decomposes waste and produces a thermally decomposed residue, while moving the waste downward, and a fluidized bed (22) that combusts a part of the thermally decomposed residue; a gas supply means (50) for the moving bed; a gas supply means (60) for the fluidized bed; a moving bed temperature sensor (31); a fluidized bed temperature sensor (32); and a control unit (80). The control unit (80) controls so that a gas (A2) for the fluidized bed is supplied to the fluidized bed (22) at a flow rate at which the temperature of the fluidized bed (22) is at a predetermined temperature and a gas (A1) for the moving bed is supplied to the moving bed (21) at a flow rate at which the temperature of the moving bed (21) is lower than the