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Effect of Low Stirring Rate on the Attrition of NaCl Crystals in a Mechanically Stirred Crystallizer
Author(s) -
Gupta B. Sen,
Lim K. C.,
Ibrahim S.,
Hashim M. A.
Publication year - 2001
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/1522-2640(200106)73:6<704::aid-cite7041111>3.0.co;2-3
Subject(s) - kuala lumpur , attrition , technical university , queen (butterfly) , engineering , library science , management , mathematics , theology , philosophy , medicine , computer science , hymenoptera , botany , dentistry , marketing , economics , business , biology
Therefore the appearance of attrition needs to be examined. The present paper deals with a model for the calculation of the reduction of the particle diameter, the total particle surface of all particles in the bed, the weight masses of the bed, the total particle number, the retention time of a particle and the necessary mass flux of particles. In the course of this experimentally determined values of an abrasion coefficient are supposed to be applied. The model represented here makes it possible to replace the lengthy experimental investigation. For this reason investigations were executed under true-to-process conditions in a semitechnical test system with an apparatus diameter of 150 mm. The present paper offers the results of experiments carried out on a self-made granulate in order to determine the change of the distributions of the particle size caused by their use in fluidized beds.