利用管式炉和小流化床实验台，考察流化床锅炉飞灰残炭晶格结构变化及不同粒径入炉煤的燃尽时间，结果表明，煤焦晶格结构的变化将影响流化床锅炉飞灰残炭的形成，大颗粒入炉煤可能是飞灰残炭的重要来源。 The use of tube furnace and small fluidized bed test bed to investigate the fluidized bed boiler fly ash residual carbon lattice structure changes and different particle size into the furnace burned time, the results show that the coal char crystal lattice structure will affect the flow The formation of fly ash residue in the bed boiler, large particles into the furnace coal may be an important source of carbon residue fly ash.