The pulverizer has received extensive attention throughout the country and has become a hot topic of discussion in the Chinese medicine industry, the chemical industry, and the food industry. As far as the Chinese medicine industry is concerned, the ultrafine pulverizer has such an indispensable role in the current form, and its development has also received much attention. It can be said to break the bottleneck of insufficient pulverization of the conventional pulverizer. The application of ultrafine pulverizer in the Chinese medicine industry has been recognized by the majority of customers, and it has attracted more and more attention.
Development and industrialization of ultrafine powder. Ultra-fine powder makes the product take effect quickly and has high bioavailability, which can improve the curative effect, reduce the side effects, reduce the dosage, and save the medicine. Transform traditional extraction processes. After ultrafine pulverization of traditional Chinese medicine, the contact area with the solvent is greatly increased, the extraction time can be shortened, the active ingredient transfer rate can be improved, energy can be saved, and the comprehensive utilization ratio of raw materials can be improved. Change the original dosage form. After ultra-micro treatment, the Chinese medicine has fine particle size, fine specific surface area and increased porosity. The drug can be well dispersed and dissolved in the gastrointestinal fluid, thereby increasing the absorption rate. It can crush materials with strong fiber. For fiber-rich materials (Ganoderma lucidum, licorice, scutellaria, etc.) can break the cells, which is not possible with ordinary pulverizers, which can improve the efficacy and reduce the waste of raw materials. Change the dosage form of valuable herbs. For precious Chinese herbal medicines such as ginseng, velvet antler, and Cordyceps sinensis, they can be made into ultra-fine, traditional Chinese medicine oral powder, capsules, microcapsules, transdermal absorption preparations, etc., the fineness is increased, the taste can be improved, and it is convenient to take.
Although it has not been developed for a long time, it has already shown its bright prospects and strong advantages in the Chinese medicine industry.
The following describes several methods for smashing materials by mechanical force according to the difference in applied force.
First, the crushing method: only applies to large materials, put the material between the two working surfaces, after applying pressure to the material, it is broken due to the pressure reaching its compressive strength.
Second, mashing: It is the tensile strength of the plane beyond the material in the original direction, so the material can be crushed faster. The method of operation places the material between a plane and a sharp-edged working plane. When the sharp-edged working plane presses the material, the material will split in the direction of the pressure line of action.
Third, the broken material is broken by the bending stress. A two-point simply supported beam or a multi-point beam that is subjected to concentrated load by the crushed material. When the bending stress of the material reaches the bending strength of the material, it is broken and broken.
4. The crushed material is broken by the impact force, and its crushing force is instantaneous. The crushing efficiency is high, the crushing ratio is large, the energy consumption is small, and the impact crushing has the following conditions: (1) The working body of the movement (2) High-speed moving materials impact on a fixed working surface ; (3) High-speed moving materials impact each other ; (4) High-speed moving working body impacts on suspended materials. 5. After the grinding ( grinding ) material and the moving working surface are subjected to a certain pressure and shearing force, when the shearing stress reaches the shear strength limit of the material, the material is pulverized ; or when the materials rub against each other The shearing and grinding action causes the material to be pulverized.
Ultra-fine pulverization in the laboratory is to use the laboratory ultra-fine pulverizer to superfine the material. The main purpose of pulverization is to increase the surface area of ​​the drug and promote drug dissolution. It is beneficial to prepare various pharmaceutical dosage forms. Accelerate the dissolution of active ingredients in the medicine. It is easy to formulate, take and exert its effects. It also facilitates the drying and storage of fresh herbs.
The basic principle of pulverization The formation of objects depends on the cohesion between molecules. The laboratory superfine pulverizer exhibits different hardness and properties due to the difference in cohesion. Therefore, the pulverization process is to partially destroy the cohesive force between the molecules by means of external forces. To achieve the process of crushing purposes.
The Chinese medicine superfine pulverizer obtains the material through the high-speed relative movement between the movable plate and the fixed plate, so that the pulverized material is combined with the impact, shearing, friction and impact between the movable plate and the fixed plate. Smash.
The main features of the Chinese medicine superfine pulverizer are that the machine's motion system rotates in one-way high-speed continuously, and the motor is rotated by the motor→belt drive→active disk for high-speed rotation. It adopts a single belt rotation and has smooth transmission when rotating at high speed. The front cover of the machine must be opened after the machine is stopped, which is suitable for cleaning the inner cavity of the machine to ensure the cleanliness of the working face of the machine. The pulverized material can be discharged directly from the abdomen of the machine. The thickness of the pulverization can be achieved by different aperture sieves.
It is suitable for the crushing of various Chinese herbal medicines.
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