熱回流提取濃縮機組機組由提取罐、過濾器、藥液泵、加熱器、蒸發(fā)器、冷凝器、冷卻器、油分器、升溫器、工控機等組成。     
中藥經(jīng)浸泡加熱后，浸出液由泵從提取罐底部泵入外加熱器加熱。多余泵液切向進入提取罐底部回流，起到局部攪拌作用。
提取液由加熱器加熱后，經(jīng)分離濃縮器閃蒸分離。二次蒸汽切向進入提取罐，一方面把熱量傳給提取罐內(nèi)溶劑，一方面起攪拌作用。

熱回流提取濃縮機組余氣一路進入冷凝器冷成溶劑，回流進入提取罐。一路進入冷凝液升溫器進行熱交換，使冷凝液溫度接近提取罐溶液沸點，余氣進入冷凝器。由于溶劑回流量大，藥材與溶劑中含溶質(zhì)的密度保持高梯度，溶質(zhì)快速溶出。    
由于是一面提取，一面濃縮，且濃縮液不斷排出，流程時間大大縮短，僅需4-6小時。
由于能使冷凝液回流溫度接近提取罐溶液沸點，能耗低。整個機組為密閉操作，溶劑消耗少。
 

整個機組由工控機控制，操作程序，加熱溫度、蒸發(fā)溫度、回流溫度、系統(tǒng)真空壓力、提取罐溶劑液面，濃縮液濃度、蒸發(fā)濃縮罐液面均能設(shè)定和控制，使工藝流程運行可靠、穩(wěn)定、安全。
因工藝性能好，收膏率提高。且機組能適應(yīng)真空、常壓、正壓工藝操作的水提和醇提，特別適應(yīng)熱敏性物料的低溫提取、濃縮。機組工藝流程布局合理、緊湊，外形美觀、污染小，符合GMP要求。
機組在高效、節(jié)能、多功能等方面具有很大優(yōu)勢。   
在綜合性能方面處于國內(nèi)位。它是與天然品接軌的現(xiàn)代化工藝裝備。我公司也生產(chǎn)普通的手動控制機組，或半自動控制機組，可滿足不同客戶的需要。
該機組不但具有中草藥(干品)提取濃縮的優(yōu)良功能。還具有*的能保持鮮活風(fēng)味的植物鮮品低溫提取濃縮功能。如鮮花、蘆筍等鮮品的提取濃縮。它已在中藥廠、保健品廠等工廠的實際應(yīng)用中，顯示了它*的功能優(yōu)勢。該機也可用于天然調(diào)味品、食品添加劑中有關(guān)動物、海洋生物的提取濃縮。

The residual air will enter into the condenser and become solvent,and  after reflux it will enter into the extracting tank.It will enter into the heater for condensed liquid to carry out heat exchange and make the tem perature of condensed liquid approximate to the boiling point of solution in  the extracting tank.Then the residual air will enter into condenser.As the solvent has large reflux quantity, the density of solute in the medicine and solvent keeps high gradient, and the solute will be rapidly dissolved.   
The extraction and concentration are synchronous with continuous discharge of concentrated liquid, thus, the process is greatly reduced and only requires 4-6 hours.
As the reflow temperature of condensed liquid is approximate to the boiling point of solution in extracting tank,the energy consumption is very low.The whole unit is operated under airproof equipment, so the solve has little consumption.
The whole unit is controlled by industrial control computer, through which, heating temperature,evaporation temperature,reflow temperature,system vacuum pressure, liquid level of solvent in extracting tank, concentration of concentrated liquid and liquid level of evaporation concentrating tank can be set and controlled.Thus, the technology process can be operated reliably, stably and safely. With good technology performance, the ointment-collecting rate is enhanced.Water or alcohol solvent distillation in conditions of negative pressure, normal pressure and positive pressure, especially low-temperature distillation of heat sensitive materials can be made. The process flow of the unit hasreasonable and compact layout, beautiful appearance and low pollution,which is in accordance with GMP requirements.
The unit has many advantages such as high efficiency, energy saving, multifunction.
As to the comprehensive performance,it is at the leading position in domestic. It is modernized technology equipment keeping pace with international natural plant medicine. Our company can also produce ordinary manual control unit or semi-automatic control unit to satisfy different requirements of customers.
The unit not only has good functions for extraction and concentration of traditional Chinese medicine and Chinese herbal medicine (Dry product),but also has powerful functions for extraction and concentration of fresh plant products at low temperature with fresh flavor preserved, such as the extraction and concentration of flower and asparagus etc. fresh products. It has applied in traditional Chinese medicine factories and health product factories, which shows its powerful function advantages.  
The equipment is also applicable to the extraction and condensation of natural condiments and food additives concerning animals and halobios.