Dregs of traditional Chinese medicine Treatment is usually divided into physical and chemical methods. The physical method is the main treatment method, while the chemical method is usually only used in specific cases. Here are some common physical methods:
one Horizontal screw centrifuge : recumbent snail Centrifuge The solid particles in the dregs of traditional Chinese medicine are separated from the liquid medicine through high-speed rotating spiral blades and screens. It is widely used and can greatly improve production efficiency. It does not require the use of chemicals, avoiding the possible pollution problems caused by chemical methods, and is the preferred equipment in the treatment of Chinese medicine residue.
2. Filter press: the filter press uses the function of filter cloth and pressure plate to Dehydration of traditional Chinese medicine residue 。 It is suitable for Chinese medicine dregs with more water content, and also for some Chinese medicine dregs requiring high temperature heating treatment. However, the material of the filter bag of the filter press needs to consider the cleanliness, otherwise it will cause the Chinese medicine residue to permeate into the filter bag and be polluted.
3. Vacuum dryer: vacuum dryer is widely used in medicine residue drying and molding. The equipment uses the low-temperature drying and vacuum characteristics to convert the water in the Chinese medicine residue into steam, so as to achieve the purpose of drying and molding.
It should be noted that the treatment methods and equipment for different kinds of Chinese herbal dregs should be selected according to the actual situation. For some Chinese medicine dregs with high requirements, multiple treatment methods may be required to be used together to obtain better results.
For the material selection of horizontal screw centrifuge, 304 stainless steel is a common material, which has good corrosion resistance, acid resistance and high temperature resistance, and is suitable for many occasions. Because the decanter centrifuge needs to contact with the residue of traditional Chinese medicine, there are certain requirements for hygiene and cleanliness, so it is advisable to choose a higher material. However, the specific material selection should also be based on the actual situation and operational needs.
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