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2021
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The superiority of vertical pellet mill
Advantages of vertical pellet mill: Dry granulation generally does not need to add additives. Dry powder can be made into granules directly, increasing the bulk density, improving the appearance and fluidity, and controlling the disintegration degree, which is convenient for storage and transportation.
Advantages of vertical pellet mill: Dry granulation generally does not need to add additives. Dry powder can be made into granules directly, increasing the bulk density, improving the appearance and fluidity, and controlling the disintegration degree, which is convenient for storage and transportation. It is relatively wet granulation. Save energy, improve the multiple processes of wet granulation, and reduce pollution.
The scope of application of vertical pellet mill: general materials containing crystal water, Chinese medicine extracts, and materials containing a certain amount of moisture can be granulated by dry method. Except for a few special materials such as flour, carbon black, graphite, etc., it is difficult to granulate. , And it is difficult to granulate pure Chinese medicine without special treatment. You can consider adding appropriate auxiliary materials; the fineness of powder is about 80-300 mesh. It is better for coarse or fine powder to granulate dry powder. It has a greater impact: for coarser powders, the granulated particles are not uniform; for finer powders, there is a certain degree of difficulty in feeding and tableting, which will directly affect the yield of granules.
Roundness of vertical pellet mill particles: The roundness of dry granulation is slightly worse than that of wet granulation, but the roundness of dry granulation has a certain relationship with the thickness of the tablet and the form of the pelletizing tool. In addition to the material itself, the roundness of the particles can be improved by changing the thickness of the tablet. Generally, the thickness of the compressed tablet can be adjusted appropriately according to the particle size, so that the roundness of the particles after the granulation is better, and the wholeness should be improved. The structure of the pellet knife can also improve the roundness of the pellet.
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