Combined with experiences in operation of two 160 t/h CFB boiler in Yankuang Guohong Chemical Company for mixedly burning blended fuels

such as relaxedly deflated gas

coal slime

washed middling coal

gangue

ash and slag from gasified furnace etc.

the features of adjustment in operation for the negative pressure in furnace

the thickness of material layer in CFB boiler

the temperature of main steam

the temperature of discharged flue gas etc.

as well as some measures in operation and maintenance

including slag removal system of the boiler

abrasion of the heating surface

the coal haddling system

and the ash removal and conveying system etc.

have been analysed

providing certain reference for mixedly burning blended fuel

and realizing comprehensive utilization of wastes.