rcn熱回流抽提濃縮器

thermal circumflence extraction ＆ concentrator

本設(shè)備適用于植物草藥、中藥材、動(dòng)物藥、食品添加劑等。采用水、乙醇、甲醇、丙酮等提取和有機(jī)溶劑的回收與濃縮。

the device serves for vegtable and herbal medicine、china traditional drug、animal drug、food additional to extract with water、ethanol、carbinol and acet and to reclaim and concentrate the organic solvent.

技術(shù)參數(shù)technology parameter：

工作原理：

將藥材投入提取罐內(nèi)，加藥材的5-10倍的溶煤如：水、乙醇、甲醇、丙酮等(據(jù)工藝要求)。開啟提取罐直通和夾套蒸汽閥門，使提取液加熱至沸騰20-30分鐘后，用抽濾管將1/3提取液抽入濃縮器。關(guān)閉提取罐直通和夾套蒸汽，開啟加熱器閥門使液料進(jìn)行濃縮。濃時(shí)產(chǎn)生二次蒸汽，通過蒸發(fā)器上升管送入提取罐作提取的熱源和溶液，維持提取罐內(nèi)沸騰。

二次蒸汽繼續(xù)上升，經(jīng)冷凝器冷凝成熱冷凝液，回落到提取罐內(nèi)作新溶劑加到藥面上，新溶劑由上而下調(diào)整通過藥材層到提取罐底部，藥材中的可溶性有效成份溶解于提取罐內(nèi)溶劑。提取液經(jīng)抽濾管抽入濃縮器、濃縮產(chǎn)生的二次蒸汽又送到提取罐作熱源和新溶劑，這梓形成的新溶劑大回流提取，故藥材中溶質(zhì)密度與溶劑中含溶質(zhì)密度保持高梯度，藥材中的溶質(zhì)高速溶出，直至濃縮成需要比重(1.2-1.34)的藥膏，放出被用。提取罐內(nèi)的無色液體，可放入貯罐作不批復(fù)用，藥渣從渣門排掉，若是用有機(jī)溶劑提取，則先加適量的水，開直通和夾套蒸汽，回收溶劑后，將渣排掉。

operation principle

put the drug material intl the extraction tank and in-sert the solvent such as water,ethanol,carbinol and acet,etc(in accordance with the technology requirement)whose capacity is five to ten times the drug material.the tee in the extraction tank and the vapor valve of clip sleeve open to heat the extraction liquid until boil that will last for about twenty to thirty minutes and then the extraction ＆ filter pipe sorbs one third extraction liquid into the concentrato.and the tee in the extraction tank and the vapour valve of clip sleeve are closed and the heater valve is opened to concentrate the material liquid.the second vapor produced during concentration can enter the extraction tank through the upward pipe at the evaporator to serve as the heat source for extraction to maintain the boil inside the tank.

the second vapor continues rising to change into the condensation liquid by the condensator and falls back inside the extraction tank to serve as new solvent to be added at the drug surface.the new wolvent arrives down at the bttom of the extraction tank throughout the drug material layer.the dissoluble effective content at the drug material is resolved into the solvent inside the extraction tank.the extraction liquid enters the concentrator.by the cxtraction ＆filter pipe and the second vapour produced for concentration arrives the extraction thank to serve as heat source and new solvent .the extraction of new solvent with large circumfluence can make the density of the drug material and solvent at high grads.the solvent in the drug material separates out at high speed until a complete until a complete separation(i.e.the extraction liquid is colorless).then,the extraction liquid stops entrance of the concentrator.the concentrated second vapor enters the cooler to continue concentration until the drug cream with reuse.the drug residue is drained out of the residue outlet.in the case of extraction with organic solvent,it is necessary to add proper water and open the tee and the clip sleeve vapor valve.after reclamation of sovent,the residue is drained.

設(shè)備特點(diǎn)：

1、收膏率比多能罐提高10-15%，藥膏內(nèi)含有可效成分高1倍以上。由于在提取過程中，熱的溶劑連續(xù)加到藥面上，由上至下高速通過藥材層，溶解藥材中的溶質(zhì)，藥材中的溶含量與溶劑中溶質(zhì)含量保持了高梯度，藥材中的溶質(zhì)高速溶出，直至*溶出，則有效成分提取率高，濃縮又在一套密封設(shè)備中完成，損失很小、轉(zhuǎn)化率高、故收藥膏率高，藥膏里有效成份含量高。

2、由于溶質(zhì)高速溶出，提取時(shí)間短，濃縮與提取同步進(jìn)行，故到濃縮藥膏只需7-8小時(shí)，生產(chǎn)率高。

3、設(shè)備單一，占地小，設(shè)備利用率高，故投資省。

4、提取只加1次溶劑，在一套密封設(shè)備內(nèi)循環(huán)使用，藥渣里的溶劑基本上能回收出來，故溶劑用量比多能提取罐少30%以上，消耗率可降低50-70%，這為用有機(jī)溶劑提取、提純中藥中有效成分鋪平了道路。

5、由于濃縮的二次蒸汽作提取的熱源，抽入濃縮器的提取液與濃縮同溫度，可節(jié)藥50%以上的蒸汽，操作很簡便，減少了操作人員。

equipment feature

1、the rate for cream collection is 10-15%higher than that of the multiple function tank ,and the effective content inside thecream is one time higher than the normal one.because the  heat solvent is added into the drug surface continuously and then they pass the drug  layer from up to down with high speed to solve the solute in the drug material during the extraction,so the solute in the drug material and the solute in the solvent keep high grads.if the solute in the durg material can separate out with high speed until it separates out ,then the extraction extent of the effective content is high.because the concentration is finished inside the seal device with little loss and high transformation rate,so the rate for cream collection is high and the effective content inside the drug cream is high.

2、for the factors of high speed of separation out of solute,short time of extraction synchronous operation of concen-tration and extraction,the time from changing the drug material into the concentrated drug cream is only seven to eight hours which highlights high equipment utility.

3、the equipment is simple and has little use area and features high equipment utility,which highlights economic investment.

4、the extraction just needs one time of use of solvent,which is used cyclically in a set of seal equipment,the solvent in the drug residue can be reclaimed basically,which makes the solvent quantity is 30%less than that of the multiple function extraction tank and the solvent consumption is 50-70%less than that of the multiple function extraction tank.the above advantages make it available the extraction of organic solvent and purification of effective content in the china traditional drug.

fot the concentrated secondary vapor serving as heat source,the extraction liquid into the concentrator is at the same temperature level with that of the concentrator,which can save the vapor for more than50%and feature easy operation and reduces the operator.