Abstract: The optimized adjustment of combustion has important guiding significance for circulating fluidized bed boiler operation. Combining with practical operation of Henan Lianfu Power Plant, according to the experiment in long time, the parameters influenced boiler combustion were optimized, and proper operation parameters were obtained. The results can be used as reference for combustion optimization plan.

Key words: preboiler coal grade, rigidity of secondary air, house service consumption rate, carbon content in fly ash, optimized adjustment of combustion