The multi-functional extraction tank is a versatile piece of equipment widely used in the traditional Chinese medicine, food, and chemical industries. It can perform various processes such as atmospheric extraction, vacuum extraction, water decoction, warm soaking, heat reflux, forced circulation, essential oil extraction, and organic solvent recovery. Its user-friendly design and efficient operation make it an ideal choice for industrial applications.
The working principle of the multi-functional extraction tank varies depending on the specific process being carried out:
1. **Water Extraction**: The herbal material and water are placed into the extraction tank, and the heating source in the jacket is activated. Once the mixture begins to boil, the heat source is reduced to maintain a gentle boil. The duration of this process depends on the pharmacological requirements of the extraction. After cooling, the steam is condensed and returned to the tank to maintain temperature and ensure continuous circulation.
2. **Alcohol Extraction**: In this process, the medicinal ingredients and alcohol are sealed within the tank. Steam is introduced into the jacket to provide heat, while cooling water is used to regulate the temperature inside the tank. As the alcohol vapor rises, it passes through the condenser, where it is cooled and returns to the tank as liquid. To enhance efficiency, a pump can be used to circulate the liquid from the bottom to the top of the tank, ensuring even distribution and improved extraction.
3. **Essential Oil Extraction**: The herbal material containing volatile oils is added to the tank along with water. The oil separator’s circulation valve is opened, and the bypass return valve is adjusted. Heat is applied until the desired temperature for volatilization is reached, followed by the activation of cooling water. The liquid level in the separator is maintained to allow proper separation of oil and water. This process may involve alternating between two oil-water separators for better efficiency.
4. **Solvent Recovery**: For recovering alcohol or other solvents, the tank is filled with the appropriate solvent. Steam is introduced, and the cooling system is activated. The recovery valve is then opened to collect the condensed solvent, allowing for reuse in subsequent extraction cycles.
This advanced extraction technology ensures high efficiency, minimal waste, and consistent quality in the production of herbal extracts, essential oils, and other valuable compounds. Whether you're working in pharmaceuticals, food processing, or chemical manufacturing, the multi-functional extraction tank is a reliable and flexible tool that supports a wide range of extraction needs.
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