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Received April 2, 2010
Accepted June 3, 2010
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Improvement of performance efficiency of a hydrocyclone with design modification by suppressing air core
1R&D Division, Tata Steel, Jamshedpur, 831003, India 2Indian School of Mines, Dhanbad, India 826004, Jharkhand, India 3Department of Chemical Engineering, Indian Institute of Technology, Kharaghpur 721302, India 4School of Chemical Engineering, Howard College, University of Kwazulu-Natal, King George Avenue, Durban 4041, South Africa
meikap@ukzn.ac.za
Korean Journal of Chemical Engineering, January 2011, 28(1), 225-231(7), 10.1007/s11814-010-0344-y
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Abstract
Hydrocyclones have been used for beneficiation of coal and mineral in coal washeries and mineral process industries. To enhance the efficiency of hydrocyclone, it is very essential to quantify the presence or absence of air core within the hydrocyclone. In the present study, for the first time, a new hydrocyclone design has been conceptualized and tested for its efficiency in separation of particles based on gravity. Experimental investigations have been carried out using design of experiments and the results have been analyzed statistically. The results have shown that suppressing the air core improves the separation efficiency of the hydrocyclone. Efforts have been made to explain the concept through fundamentals of fluid flow in hydrocyclone. The air core has a significant effect on particle separation as the relative density of the particles approach to the fluid density. The results will be used in the development of a new design of dense medium hydrocyclone at industrial scale that will improve the separation efficiency of the hydrocyclones by separating the near gravity particles more efficiently.
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References
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Xu J, Luo Q, Qui J, Filtration and Separation., 27, 276 (1990)
Chu LY, Yu W, Wang GJ, Zhou XT, Chen WM, Dai GQ, Chem. Eng. Process., 43(12), 1441 (2004)
Steffens PR, Whiten WJ, Appleby S, Hitcehns J, Int. J. Min.Processing., 39, 61 (1993)
DAVIDSON MR, Int. J. Miner. Process., 43(3), 167 (1995)
DYAKOWSKI T, WILLIAMS RA, Int. J. Miner. Process., 43(1), 1 (1995)
Dwari RK, Biswas MN, Meikap BC, Chem. Eng. Sci., 59(3), 671 (2004)
Chu LY, Chen WM, Lee XZ, Sep. Purif. Technol., 21(1-2), 71 (2000)
Shin HS, Lee JK, Pui D, Korean J. Chem. Eng., 25(4), 754 (2008)
Lee MS, Williams RA, Min. Eng., 6, 743 (1993)
Changlie LD, Jirun X, Lixin Y, Guangai X, Int. J. Min.Processing., 25, 297 (1989)
Sripriya R, Kaulaskar MD, Chakraborty S, Meikap BC, Chem. Eng. Sci., 62(22), 6391 (2007)
