Chinese medicine crushing degree and crushing rules

The Chinese herbal medicine pulverizer is suitable for small Chinese medicine factories, Chinese medicine shops, Chinese medicine hospitals, and is also suitable for chemical, mining and scientific research units. The Chinese herbal medicine pulverizer has high work efficiency and simple operation. The fineness of the product is up to 200 mesh, which is more effective for crushing the easy-to-bond, expensive Chinese medicine which is usually difficult to crush.

Chinese medicine crushing - crushing degree and crushing principle

The degree of comminution is the degree of pulverization of the solid drug. Often expressed as the ratio (n) of the average diameter (d) of the unpulverized drug to the average diameter (d1) of the pulverized drug, that is, n=d/d1.

The shredding rules are as follows:

(1) The drug should not be excessively pulverized to achieve the required degree of comminution. To save energy and reduce drug losses during the crushing process.

(2) During the pulverization process, the components and pharmacological effects of the drug should be kept as much as possible. The medicinal part of Chinese herbal medicines must be smashed and applied. For parts that are difficult to pulverize, such as veins or fibers, they should not be discarded at will, so as not to lose the active ingredients or to increase the active ingredient content of the drug.

(3) When smashing toxic drugs or drugs with strong irritancy, attention should be paid to labor protection to avoid poisoning. When smashing flammable and explosive drugs, pay attention to fire and explosion protection.

(4) Plant herbs should be as dry as possible before crushing.

The formation of an object depends on the cohesive force between molecules. The object exhibits different hardness and properties due to the difference in cohesion. Therefore, the pulverization process is a process of partially destroying the cohesive force between the molecules of the material by means of external force to achieve the purpose of pulverization. Medical education.

The difficulty of comminution of drugs depends mainly on the structure and properties of the substance, but it is also closely related to the size of the external force.

The external forces of various pulverizing machines acting on the pulverized material are of the following types: cutting, squeezing, grinding, impacting, splitting, tearing, and boring.

According to the nature of the drug, different types of crushing machinery with external force can be used to obtain the expected crushing effect.