Patent ID: 11898751
Assignee: IHI INSPECTION AND INSTRUMENTATION CO., LTD.
Field: Measurement (Instruments)
Classification: CPC F  G | IPC F

Claim 2:
3. An device for predicting ash adhesion in a coal-fired boiler comprising
a coal-ash generator for ashing coal into coal ash,
a sintered-ash generator for heating the coal ash generated in said coal-ash generator at a plurality of temperatures within a combustion temperature range in the coal-fired boiler to generate sintered ash at each of the heating temperatures,
a ratra tester for rotatively separating each sintered ash generated in said sintered-ash generator,
a sticking-degree calculator for calculating a sticking degree from a weight ratio of each sintered ash after and before the rotary separation thereof by said ratra tester,
a correlation determiner for burning each coal having a corresponding sticking degree calculated in said sticking-degree calculator in the coal-fired boiler to measure the exhaust gas temperature to thereby determine a correlation between sticking degrees and exhaust gas temperatures,
an exhaust-gas-temperature predictor for predicting an exhaust gas temperature from a sticking degree of coal to be employed as fuel on the basis of the correlation between the sticking degrees and the exhaust gas temperatures obtained in said correlation determiner and
an adhesion predictor for predicting ash adhesion in the coal-fired boiler on the basis of the exhaust gas temperature predicted in said exhaust-gas-temperature predictor.