How do mud balls form in lime kilns?-Reference-Cited by-同舟云学术

How do mud balls form in lime kilns?

Published:2023-05-01 Issue:4 Volume:22 Page:258-267
ISSN:0734-1415
Container-title:April 2023
language:en
Short-container-title:TJ

Author:

HINTON-BARBER PATRICK,TRAN HONGHI

Abstract

Mud ball formation in lime kilns has been a persistent problem in many kraft mills, particularly for older kilns that are equipped with chains. A systematic laboratory study was conducted to examine how mud balls are formed and the key factors that affect ball formation. The results confirm the general mill experience that high moisture and high sodium contents in lime mud are the main contributing factors to ball formation. The high moisture content allows lime mud to agglomerate and grow to form balls, while the high sodium content helps make the balls hard and retain their shape. A ball formation mechanism is proposed to explain how mud balls form and grow near the kiln feed end.

Publisher

TAPPI

Subject

Mechanical Engineering,General Materials Science,Media Technology,General Chemical Engineering,General Chemistry

Reference7 articles.

1. Tran, H.N. and Barham, D., Tappi J. 74(1): 131(1991).

2. Tran, H.N., “Lime kiln chemistry and effects on kiln operations,” TAPPI Kraft Recovery Operations Course, TAPPI Press, Atlanta, 2006.

3. Adams, T.N., “Lime reburning,” in Pulp and Paper Manufacture – Volume 5. Alkaline Pulping (T.M. Grace and E.W. Malcom, Eds.), 3rd edn., TAPPI Press, Atlanta, 1989, pp. 590-608.

4. Tran., H.N., Vollick, S., and Gauthier, M., TAPPI J. 6(4): 9(2007).

5. Hinton-Barber, P., “How do mud balls form in lime kilns?”, M.Eng. thesis, Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, 2016.