Closed type kneader

B - Operations – Transporting – 01 – F

Patent

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259/42

B01F 7/04 (2006.01)

Patent

CA 1314539

ABSTRACT OF THE DISCLOSURE According to the present invention, the drawback that it is difficult to introduce a large amount of material and the operability and productivity are low because of poor bite-in performance, which drawback is common to closed type kneaders using intermeshing type rotors, can be overcome easily by providing an auxiliary blade so as to synchronize with the main blade tip of a mating rotor over a length not shorter than 1/2 of the rotor axial length. In this point the present invention is extremely advantageous and superior. By this construction it is made possible to introduce a large amount of material, improve the bite-in performance for the material and further improve the operability and productivity. Moreover, by stabilizing the bite-in performance it is possible to avoid increase of the scatter in quality between batches, maintain stable kneading contents and uniform quality and facilitate production control. Besides, since these can be attained merely by modifying the structure of rotor blades, the invention can be practised extremely easily.

611205

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