| 摘要 |
PROBLEM TO BE SOLVED: To provide the soot blower control device of a boiler permitting the optimization of the number of motions of a soot blower to any kinds of coal without setting a threshold value for each kind of coal, avoiding the adverse effects on the main body of the boiler due to the fixation of ash and contriving to prevent the occurrence of erosion due to the reduction in the consumption of an atomizing medium and the atomizing medium on the inner surface of the furnace wall of a furnace and the surface of various heating tubes. SOLUTION: The state value that becomes a maximum in the case when an actual furnace heat yield rate 39 to the entire heat yield shifts from the tendency to rise to the tendency to fall is stored as the standard value of the furnace heat yield rate 37', and the relative reduction in the furnace heat yield rate 39 from the standard value of the furnace heat yield rate 37' by a predetermined rate is detected. Then, a soot blower-starting command 42' is outputted. Thus, this device is constituted.
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