| 摘要 |
The device for mixing, heating, drying and/or granulating powdery, granular and/or pasty materials. A conical mixing vessel (1) with a vertical axis (2), narrows in a downward direction and has at least one vertical mixing shaft (3) which can rotate in the vessel. The shaft has a number of elements projecting gradually from it with their outer ends extending near to the side wall (6) of the vessel. The shaft carries a great number of elements (4) and has a high to very high number of revolutions by means of which the material to be treated experiences a very strong shearing at both the elements and at the inner wall so that in a very short time a very intensive mixing of the product is effected.
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