Automatic combustion control method for fluidized bed type sludge incinerator and fluidized bed type sludge incinerator

摘要

Problem to be solved: to control the flow state of the sand layer based on the temperature difference of the temperature measured by the sand bed temperature measuring instrument installed in each sand layer, and to reduce the N2O concentration in the exhaust gas.Solution: the sand layer s and the free board part f formed on the upper side of the sand layerA fluidized bed type sludge incinerator 1 for burning the supplied sludge MProvided in the sand layer s;A plurality of temperature measuring devices 10 for measuring the temperature of a plurality of sand layers11Temperature measuring instrumentCalculates the temperature difference of temperature measured byIf the temperature difference of the sand layer temperature exceeds 15 to 30 degrees Celsius based on the temperature difference valueThe primary air amount supplied to the sand layer s is increased by 1 toOn the other handIf the temperature difference becomes 0 to 15The fluidized bed type sludge incinerator is characterized in that there is a control device 27 for controlling the primary air amount supplied to the sand layer s by 1 to 5%.Diagram