Info

Z 7H

X IG

654-

cr w lii

POROSITY 20%

POROSITY 20%

0 10 20 30 40 50 60 70 80 90 100 liquid saturation (%)

Fig. 2 Predicted tensile strength due to mobile liquid bonding of agglomerates with different porosities. Spheres of diameter 20 pm wetted with a liquid having surface tension 68 mN m ~1 and zero contact angle to the solids.

solids. Tsubaki and Jimbo (1984) showed that the precompressive stress, applied to achieve a desired packing density of the particle assembly, influences the apparent tensile strength because of effects of interparticle forces in addition to effects of mobile liquid bondings. Although the dense particle packing achieved in agglomeration processes must be due to free movement of the particles into a tight packing, it is assumed that interparticle forces also affect the deformability of moist agglomerates composed of irregular particles with wide size distributions.

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