|
Korean Journal of Chemical Engineering, Vol.28, No.2, 613-619, 2011
Influence of pulsing-air injection distance on pressure drop in a coke dust bagfilter
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.
[References]
- Allen RWK, Goyder HGD, Morris K, Chem. Eng. Res. Des., 77(3), 223, 1999
- Ellenbecker MJ, Leith D, Powder Technol., 25, 147, 1980
- Dean AH, Cushing KM, J. Air Pollut. Control Assoc., 38, 90, 1988
- Gabites JR, Abrahamson J, Winchester JA, Powder Technol., 187(1), 46, 2008
- Peukert W, Wadenpohl C, Powder Technol., 118(1-2), 136, 2001
- Simon X, Chazelet S, Thomas D, Bemer D, Regnier R, Powder Technol., 172(2), 67, 2007
- Koehler JL, Leith D, Atmos. Environ., 17, 1909, 1983
- Leith D, Ellenbecker MJ, Atmos. Environ., 14, 845, 1980
- Strangert S, Filtr. Sep., 15, 42, 1978
- Lu HC, Tsai CJ, J. Environ. Eng., 125, 583, 1999
- Lu HC, Tsai CJ, J. Environ. Eng., 129, 811, 2003
- Tsai CJ, Tsai ML, Lu HC, Sep. Sci. Technol., 35, 211, 2000
- Doring N, Meyer J, Kasper G, Chem. Eng. Sci., 64(10), 2483, 2009
- Kavouras A, Krammer G, Chem. Eng. Sci., 58(1), 223, 2003
- Hindy KT, Sievert J, Loeffler F, Environ. Int., 13, 175, 1987
- Tsai CJ, Tsai ML, Lu HC, Sep. Sci. Technol., 35(2), 211, 1999
- Liu DHF, Liptak BG, Environmental Engineers’ Handbook: Air Pollution, Lewis Publishers (CRC Press), New York, 1997
- Hsin-Chung LU, Tsai CJ, Environ. Sci. Technol., 30, 3243, 1996
- Loeffler F, Sievert J, Filtr. Sep., 24, 110, 1987
- Park SJ, Choi HK, Park YO, Son JE, Aerosol Sci. Technol., 37, 685, 2003
- Choi JH, Ha SJ, Park YO, Korean J. Chem. Eng., 19(4), 711, 2002
- Yoa SJ, Cho YS, Choi YS, Baek JH, Korean J. Chem. Eng., 18(4), 539, 2001
- Calle S, Contal P, Thomas D, Bemer D, Leclerc D, Powder Technol., 128(2-3), 213, 2002
- Ju J, Chiu MS, Tien C, Powder Technol., 118(1-2), 79, 2001
- Kim ST, A study on the pressure drop variance of pulse interval, injection distance in pulse air jet type bag filter, Miryang National University, Miryang, 2004
- Jang YD, A study on the pressure drop variance of inlet concentration and face velocity in pulse-jet type bag filter, Miryang National University, Miryang, 2007
- Cheng YH, Tsai CJ, Aerosol Sci. Technol., 29, 315, 1998
- Silva CRN, Negrini VS, Aguiar ML, Coury JR, Powder Technol., 101(2), 165, 1999
- Choi JH, Bak YC, Jang HJ, Kim JH, Kim JH, Korean J. Chem. Eng., 21(3), 726, 2004
- Jeon KJ, Jung YW, Powder Technol., 141(1-2), 1, 2004
- Lu HC, Tsai CJ, Environ. Sci. Technol., 30, 3243, 1996
|