| Popis: |
To investigate the effect of the methods of feeding SiC and CaCO 3 powders on the size and structure of binary composite granules made of the powders, experiments were performed by a simultaneous operation of granulation, grinding and separation in a continuous rotating conical vessel using two kinds of methods for feeding the binary powder. The structure of a composite granule was characterized by comparing the granule size with the size of the SiC-agglomerates contained in the granule. It was found that (i) by feeding dry SiC with CaCO 3 powders, it was difficult to obtain composite granules smaller than 0.3 mm in size, and that (ii) by feeding SiC-powder with binder in a slurry state, it was possible to make composite granules of larger than at least 0.13 mm, though the structure of composite granules depended on the concentration of SiC-powder in the slurry. |
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