METHOD OF CONTROLLING COMBUSTION IN FLUIDIZED BED INCINERATOR

摘要

A method of controlling combustion in a fluidized bed incinerator. In the fluidized bed incinerator (5), a waste feed rate is measured by a feed rate measuring device (11) using photoelectric elements (1) provided in a chute (2) for feeding the waste to be burnt (3) from a dust feeder (4) to the incinerator (5) and, when the feed rate of the waste exceeds a predetermined value: the feed rate of the waste to be burnt from the dust feeder (4) is decreased to suppress the combustion; an induction gas volume by an exhaust gas induction blower (9) of the incinerator is increased to suppress the rise of pressure in the incinerator; an air volume of a forced draft blower (7) for fluidizing air is decreased to suppress the combustion; or an air volume of a blower (8) for feeding air to a free board section is increased to prevent the occurrence of unburnt gas.