Influence of pulsing-air injection distance on pressure drop in a coke dust bagfilter |
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| Authors: | Jeong-Min Suh Young-Il Lim John Zhu |
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| Affiliation: | 1.Department of Regional Environmental System Engineering,Pusan National University,Miryang, Gyeongnam,Korea;2.Department of Chemical Engineering,Hankyong National University,Gyonggi-do,Korea;3.Division of Chemical Engineering, School of Engineering,University of Queensland,Brisbane,Australia |
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| Abstract: | The effect of the pulsing-air injection distance between the nozzle and venturi on total pressure drop was investigated in
a pilot-scale pulse-jet bagfilter for coke dust of a steel mill factory. Theoretical and empirical models were used to predict
the pressure drop. The empirical model contains two parameters—dust cake resistance and exponent of areal mass density—to
be estimated by experiment. The optimum injection distance for minimizing the total pressure drop was evaluated by 64 experimental
data at a fixed filtration velocity and pulse pressure in the practical ranges of dust concentration and pulse interval time.
The dust cake resistance shows a minimum value at the optimum injection distance. The empirical model is in good agreement
with the experimental data, showing a correlation coefficient of 0.952. |
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