Abstract
Tumbling granulators and coaters include discs, drums, pans and a range of similar equipment. In tumbling granulators, particles are set in motion by the tumbling action caused by the balance between gravity and centrifugal forces. These granulators have the following characteristics:
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Product granule size is in the range 2 to 20 mm. Tumbling granulators are not suitable for producing very small granules.
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Tumbling granulators are good for producing high density “balls” or pellets. It is more difficult to produce high porosity agglomerates.
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Tumbling equipment can also be used for coating relatively large (group D) particles.
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Discs and drums generally operate continuously and can be up to 4 m in diameter. They are capable of very large throughputs (up to 100 tonne/hr) and are therefore extensively used in mineral processing and fertiliser granulation.
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Bibliography
Adetayo, A.A., Litster, J.D. and Desai, M. (1993). Chem. Eng. Sci., 48 (23), 3951–3961.
Capes, C. E. (1980). Handbook of Powder Technology: Vol. 1: Particle Size Enlargement, Elsevier Science, Amsterdam.
Sherrington, P.J. and Oliver, O. (1981). Granulation, Heyden, London.
Sastry, K.V.S. and Fuerstenau, D.W. (1973). Powder Technology, 7, 97–105.
Sarwono, R. and Litster, J.D. (1994a). Proc. I st Interational. Particle Technology. Forum, Denver, Aug. 17–19, 265.
Sarwono, R. and Litster, J.D. (1994b). Proc. CHEMECA 94, Perth, Sep. 25–28, 553.
Iveson, S.M. and Litster, J.D. (1998). AIChE J., 44 (7), 1510.
Iveson, S.M., Wauters, P.A.L., Forrest, S., Litster, J.D., Meesters, G.M.H. and Scarlett, B. (2001). Powder Technology, 117 (1–2), 83.
Wauters, P.A.L., Van de Water, R., Litster, J.D., Meesters, G.M.H. and Scarlett, B. 2001. Powder Technology, 117.
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© 2004 Springer Science+Business Media Dordrecht
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Litster, J., Ennis, B. (2004). Tumbling Granulation. In: The Science and Engineering of Granulation Processes. Particle Technology Series, vol 15. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-0546-2_8
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DOI: https://doi.org/10.1007/978-94-017-0546-2_8
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-6533-9
Online ISBN: 978-94-017-0546-2
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