Cold-state experiment and study have been carried out on the test stand in laboratory with bluff-body of different shapes fixed at the outlet of dual-channel swirl pulverized coal burner

and the effects of said bluff-body on the aerodynamic flow field at the outlet of said burner have been compared. The reasonable shape of bluff-body has been found and applied to the burners of a 410t/h boiler in Huozhou Power Plant

Shanxi Province

and its good performance of stable combustion under low load has been confirmed.