Summary of Observed Differences and Comparative Mixing Data

4 Summary of Observed Differences, and Comparative Mixing Data 

Tabulation of differences in behaviour has become more difficult since the introduction of the many different styles of intermeshing and tangential rotors over the last few years. Table 2 should therefore be considered as a guide only. 

Note that the difference in shape of the discharged lump occurs because of the way that the batch breaks at the door edges as the door opens. With an intermeshing mixer on which the door is more closely profiled to the shape of the rotors, the batch is wound out from between the rotors in the form of the gap between them, hence the rough sheet form of the dumped batch. With a tangential machine, a significant proportion of the batch is between the door and the rotors, hence a large lump is dumped followed by material which is carried round and often stretched out by the rotor. 

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