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E-mail
shchaosheng@163.com
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13853746518
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No. 666, Yingkelei Industrial Park, 327 National Road, High tech Zone, Jining City
Jining Shuanghe Ultrasonic Equipment Co., Ltd
What is the process principle of countercurrent circulation extraction equipment?
Date: 2025-09-25Read: 5
The process principle of the countercurrent circulation extraction equipment is mainly based on dynamic countercurrent contact and enhanced mass transfer technology, and its core is to achieve efficient separation and continuous production through the reverse flow of two-phase fluids. The following is a specific principle analysis:
1、 Countercurrent contact mechanism
1. Reverse flow design: The raw material liquid and extraction solvent are added from both ends of the equipment to form a reverse flow mass transfer process. The raw material liquid moves from the feed end to the solvent end, while the solvent flows in the opposite direction, achieving an increase in solute concentration gradient through multi-stage contact.
2. Continuous operation: The system supports 24-hour continuous feeding, avoiding the pouring step of traditional intermittent processes and significantly improving production efficiency.
2、 Enhanced Mass Transfer Technology
1. Ultrasonic assisted extraction: Some equipment integrates an ultrasonic generator (15-60KHz), which destroys the cell wall through cavitation effect, accelerates the dissolution of target components, and improves extraction efficiency by more than 30%.
2. Centrifugal force field synergy: In centrifugal extraction machines, the centrifugal force generated by high-speed rotation (3000-4000r/min) enhances interfacial mass transfer, shortens separation time to the minute level, and reduces impurity residue to less than 0.1%.
3、 Modularization and environmental protection characteristics
1. Multi level series structure: usually adopts a modular design of 3-12 levels, each level can independently regulate parameters such as pH and temperature, suitable for high-purity raw materials or natural product extraction.
2. Solvent recovery system: Through online regeneration technology, more than 90% of the solvent is recovered, reducing energy consumption and waste disposal pressure, and meeting green production standards.
This technology has been widely applied in fields such as traditional Chinese medicine extraction and biomedicine, and its efficient, continuous, and environmentally friendly characteristics have become an important breakthrough in modern separation processes.
