Types of Granule Growth

Types of Granule Growth The importance of deformability to the growth process depends on hed agitation intensity. If little deformation takes place during granule collisions, the system is referred to as a low-deformahility or low-agitation-intensity... 

Figure 13.5 Schematic of the two main different types of granule growth and the way that they depend on the deformability of the granules. Reprinted from Handbook of Powder Technology, Vol. 11, eds Salman et ah, Granule rate processes, Hapgood et ah, p. 933, Copyright (2007) Elsevier...

In 2001, Holm, Schaefer, and Larsen have applied the Leuenberger method to study various processing factors and their effect on the correlation between power consumption and granule growth. They have found that such a correlation did indeed exist but was dependent, as expected, on the impeller design, the impeller speed, and the type of binder. The conclusion was that it was possible to control the liquid addition by the level detection method whereby the liquid addition is stopped at a predetermined level of power consumption. An alternative approach involves an inflection point (peak of the signal derivative with respect to time). 

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