Abstract
In this study, conventional ball mill and hybrid (roll crusher + ball mill) grinding techniques were compared in the preparation of porcelainized stoneware tile body mix in terms of energy consumption. In the conventional ball mill grinding technique, raw materials for porcelainized stoneware body mix were ground in the fast mill alone. In the case of hybrid grinding technique, the same material was first crushed using roll crusher and then subsequently ground in the fast mill. Specific energy consumptions were determined for both techniques. Comparing the results it was found that hybrid grinding appears to offer considerable energy saving over conventional ball milling alone. In this example energy saving was about 40%. Some of the important technological properties of products obtained from conventional and hybrid grinding techniques were found to be similar indicating that hybrid grinding offers energy saving without altering technological properties of the products.
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