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CONTROL METHOD OF FLOW RATE OF DESULFURIZING AGENT IN COMBUSTION FURNACE PROVIDED WITH FLUIDIZED BED
CONTROL METHOD OF FLOW RATE OF DESULFURIZING AGENT IN COMBUSTION FURNACE PROVIDED WITH FLUIDIZED BED
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机译：流化床燃烧炉内脱硫剂流量的控制方法。
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摘要
PURPOSE:To largely and reliably suppress the concentration of SOX, by a method wherein a desulfurizing agent is fed at a flow rate which is the summation of a differential value at the increasing time of a fuel flow rate added with a value having a predetermined ratio to the flow rate of the fuel to be supplied to a fluidized bed. CONSTITUTION:The temperature of a fluidized bed 2 is detected by a detector 15 to input the result to a limestone flow rate computing circuit 16. The signal through a lime 11 and representing a fuel flow rate and the signal from a set circuit 13 and showing an air ratio are also inputted to the limestone flow rate computing circuit 16, and the signal indicating the ratio of a limestone flow rate to a fuel flow rate is inputted to a set circuit 17. The signal outputted to the line 11 through a boiler master control circuit 9 and showing a fuel flow rate is differentiated by the differential circuit in the limestone flow rate computing circuit 16 for summation. The signal from the flow rate computing circuit 16 is inputted to a limestone feed means 5 through a line 20.
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