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Basic principle and method of comminution of Chinese Medicine

發布時間:2017-06-27 11:22:15

Solid medicine grinding process, is the use of external mechanical force, partially destroy cohesion between molecules, the drug bulk grain into small particles, the surface area increases, the process of mechanical energy into the surface energy. Polar crystalline substances, such as gypsum and borax, have considerable brittleness and are easily crushed. When crushed, they usually break into small crystals along the bond surface of the body. Non polar crystal material such as camphor, borneol etc. is brittle, when applied to certain mechanical force, easy deformation and hindered their crushing, usually by adding a small amount of volatile liquid, when the liquid solid intermolecular fractures, because it can reduce the cohesion between the molecules, resulting from crystal separate cracks. Amorphous drug such as resin, gum has certain elasticity, crushing machine part can be used to cause the elastic deformation, finally changed into heat energy, thereby reducing the crushing efficiency, can reduce the temperature (0 degrees Celsius) to increase the brittleness of amorphous drug, in order to crush. The complex nature of medicinal plants, and contains a certain amount of water (about 9%-16%), with toughness, which contains less water, medicine is more brittle, more conducive to crushing, and should be in accordance with its characteristic of grinding before the appropriate drying. Any of various herbs of the parenchyma, such as flowers, leaves, and some rhizomes, that are easily crushed. Long wooden structure horny herbs, medicinal herbs and animal oil containing viscous or large tendons, bone and armor is not easy to be broken, optional winnowing Chinese medicine grinder.

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