Measurement &Usage of CFBB Minimum Fluidization Air Flow

The minimum fluidization velocity(u mf )of wide-grade coal and the ratio of u mf in cold and hot positions were calculated using the Ergun and Zhejiang University's Equations respectively.The relationship of the u mf in cold and hot positions was analyzed and from the analysis the conclusion that the cold and hot u mf should be nearly the same to keep the CFB running properly can be drawn.