hot water extraction machine

The hot reflux extraction and concentration unit is suitable for the extraction and concentration process of pharmaceutical materials, which changes the traditional process of extracting first and then concentrating, and realizes the process of extracting and concentrating at the same time. The entire unit can meet various extraction requirements under negative pressure, normal pressure, and positive pressure conditions, and is suitable for water extraction and alcohol extraction processes.

Hot water extraction "is a physical extraction process that uses water as a solvent and promotes the dissolution of target components through heating. It is widely used in the initial extraction process of natural products, traditional Chinese medicine, food, and chemical raw materials; The "extraction and concentration equipment" is an integrated unit that integrates extraction, separation, concentration, and even drying functions, often with hot water extraction as the pre core process. The two are highly synergistic in actual production lines, especially in scenarios where thermosensitive components need to be retained or organic solvents need to be avoided, with outstanding advantages

Product characteristics of small-scale hot water extraction machine:
1.The hot water extraction machine unit consists of an extraction tank, tubular heater, evaporating dish, condenser, oil separator, oil collector, pharmaceutical pump, metering tank, liquid storage tank, filter, vacuum pump, distribution cabinet, etc. Both the extraction tank and the top steam outlet of the evaporator are equipped with frothers. 
2. It can perform hot reflux cycle extraction, concentration, conventional extraction, concentration, water precipitation (alcohol precipitation), percolation and other operations.
3. Able to work under negative pressure, normal pressure, and positive pressure conditions. Can adapt to water extraction, alcohol extraction or solvent extraction, and meet the requirements of "GMP".
4. The hot water extraction machine unit has great advantages in multifunctionality, high efficiency, energy saving, and wide operating range. In terms of overall performance,. It is a pilot equipment for natural plant medicine extraction.

This hot water extraction machine unit is a combined application device for the extraction and concentration of active ingredients in pharmaceuticals. Its advantage is that it integrates extraction and concentration. During the hot extraction process, the liquid medicine in the extraction tank is connected to the heater and evaporator through a filter layer for circulating concentration. The secondary steam generated by extraction and concentration is condensed by a special condenser and refluxed with the hot condensate to the deep layer of the material in the extraction tank, allowing the material to fully contact and play a dynamic extraction and solvent replenishment role. At the same time, it shortens the extraction and concentration time, greatly improving production efficiency and drug yield.

working principle of hot water extraction machine
The traditional Chinese medicine hot reflux low-temperature concentration unit integrates four extraction principles: reflux, percolation extraction, countercurrent extraction, and hot reflux extraction concentration. It simultaneously carries out the two processes of traditional Chinese medicine extraction and concentration, completing the new process of traditional Chinese medicine extraction and concentration in one go. The working temperature inside the extraction tank is improved to be controlled between 50 ℃ and 70 ℃, which maximizes the retention of effective ingredients in traditional Chinese medicine from evaporation and loss.
At the same time, the secondary distillation generated by extraction and concentration is sent to the reflux cooler to form a hot condensate, which falls back into the extraction tank and is added to the medicinal herbs as a new solvent. The new solvent dynamically leaks from top to bottom through the medicinal herb layer, and the soluble substances dissolved in the medicinal herbs reach the bottom of the extraction tank and enter the concentrator for concentration.

Application field
1) Traditional Chinese Medicine Industry: Extracting effective ingredients from Chinese medicinal materials (such as baicalin, polysaccharides, ephedrine, etc.), supporting various modes such as water extraction, alcohol extraction, and hot reflux;
The equipment must comply with GMP standards, and common configurations include extraction tanks, condensers, oil-water separators, vacuum concentrators, etc.
2) Food and health products industry: producing ash tree flower extract powder, loquat polysaccharide, oat β - glucan, sea octopus crude polysaccharide, etc;
The process emphasizes low-temperature/vacuum concentration to protect the active ingredients, such as spray drying or freeze drying combined with hot water extraction.
3) Biological resources and marine industry: extraction of sea cucumber collagen, marine active protein, seaweed polysaccharides, etc
Often combined with enzymatic hydrolysis, ultrasound assisted and other reinforcement methods to improve yield.
4) In the field of chemical engineering and environmental protection: processing oil sands (such as No.2 oil sands hot water alkali wash oil), industrial wastewater, slurry dewatering, etc;
Concentrating equipment combines solid-liquid separation and resource recovery functions in such scenarios.
5) Research and pilot scenarios:
Universities and research institutes use small multifunctional units (such as 50-500L specifications) to carry out process optimization and component analysis