Zhejiang University Research and Development Energy-saving Chinese Herbal Extract Drying Technology

Zhejiang University Suzhou Institute of Technology uses energy-saving Chinese medicine extract drying technology, developed into a vacuum belt drying equipment, access to national science and technology science and technology key scientific and technological special support. The vacuum belt drying equipment has completely independent intellectual property rights, the manufacturing cost is only one third of the import cost, and it breaks the foreign technology monopoly and fills the domestic gap. According to reports, the design of the machine was inspired by the coffee machine used for coffee, which can be said to be the result of the introduction of digestion and absorption. The vacuum belt dryer is a contact type vacuum drying equipment. After the Chinese medicine extract is preheated to the set temperature in the feed tank, the feed pump feeds at a preset feed rate and evenly spreads through the feeder. A number of drying belts in the dryer are driven by a special rubber roller driven by a motor to move the drying belt along the direction of the dryer cylinder at a set speed. Each drying belt is provided with an independent heating plate and a cooling plate. In close contact with the heating plate and the cooling plate, the energy required for drying is transferred to the materials in a contact heat transfer manner.

Vacuum belt drying technology has six characteristics:

1. Drying temperature is low, suitable for dry heat-sensitive Chinese medicine extract;

2. Suitable for dry and easily oxidized Chinese medicine extract;

3. Suitable for drying high concentration, high viscosity Chinese medicine extract;

4. The product has good dissolving performance. After the material is dried, microscopically, micropores are observed. After the particles are directly crushed to the required particle size, the particles have good fluidity. At the same time, the particles have a microscopic loose structure and have good fast dissolving properties. ;

5. During the drying process, the product is always in a vacuum state. At the same time, the material is cooled to make it close to the greenhouse, which reduces the oxidation of the product and makes the material difficult to paste. Maximize its original character and obtain high quality final products;

6. Continuous operation, suitable for large-scale production.

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