화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.28, No.2, 613-619, February, 2011
DOI10.1007/s11814-010-0372-7  Export Citation
Influence of pulsing-air injection distance on pressure drop in a coke dust bagfilter
Jeong-Min Suh, Young-Il Lim1, †, and John Zhu2
  • Department of Regional Environmental System Engineering, Pusan National University, 50 Cheonghak-ri, Samryangjin-eup, Miryang, Gyeongnam 627-706, Korea
  • 1Department of Chemical Engineering, Hankyong National University, Anseong-si, Gyonggi-do 456-749 Korea
  • 2Division of Chemical Engineering, School of Engineering, University of Queensland, Brisbane 4072 QLD, Australia
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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.
Keywords:Pulse-jet Bagfilter;Coke Dust;Pressure Drop;Modeling;Nozzle Injection Distance
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