rcn热回流抽提浓缩器

thermal circumflence extraction ＆ concentrator

本设备适用于植物草药、中药材、动物药、食品添加剂等。采用水、乙醇、甲醇、丙酮等提取和有机溶剂的回收与浓缩。

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.

技术参数technology parameter：

工作原理：

将药材投入提取罐内，加药材的5-10倍的溶煤如：水、乙醇、甲醇、丙酮等(据工艺要求)。开启提取罐直通和夹套蒸汽阀门，使提取液加热至沸腾20-30分钟后，用抽滤管将1/3提取液抽入浓缩器。关闭提取罐直通和夹套蒸汽，开启加热器阀门使液料进行浓缩。浓时产生二次蒸汽，通过蒸发器上升管送入提取罐作提取的热源和溶液，维持提取罐内沸腾。

二次蒸汽继续上升，经冷凝器冷凝成热冷凝液，回落到提取罐内作新溶剂加到药面上，新溶剂由上而下调整通过药材层到提取罐底部，药材中的可溶性有效成份溶解于提取罐内溶剂。提取液经抽滤管抽入浓缩器、浓缩产生的二次蒸汽又送到提取罐作热源和新溶剂，这梓形成的新溶剂大回流提取，故药材中溶质密度与溶剂中含溶质密度保持高梯度，药材中的溶质高速溶出，直至浓缩成需要比重(1.2-1.34)的药膏，放出被用。提取罐内的无色液体，可放入贮罐作不批复用，药渣从渣门排掉，若是用有机溶剂提取，则先加适量的水，开直通和夹套蒸汽，回收溶剂后，将渣排掉。

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.

设备特点：

1、收膏率比多能罐提高10-15%，药膏内含有可效成分高1倍以上。由于在提取过程中，热的溶剂连续加到药面上，由上至下高速通过药材层，溶解药材中的溶质，药材中的溶含量与溶剂中溶质含量保持了高梯度，药材中的溶质高速溶出，直至完全溶出，则有效成分提取率高，浓缩又在一套密封设备中完成，损失很小、转化率高、故收药膏率高，药膏里有效成份含量高。

2、由于溶质高速溶出，提取时间短，浓缩与提取同步进行，故到浓缩药膏只需7-8小时，生产率高。

3、设备单一，占地小，设备利用率高，故投资省。

4、提取只加1次溶剂，在一套密封设备内循环使用，药渣里的溶剂基本上能回收出来，故溶剂用量比多能提取罐少30%以上，消耗率可降低50-70%，这为用有机溶剂提取、提纯中药中有效成分铺平了道路。

5、由于浓缩的二次蒸汽作提取的热源，抽入浓缩器的提取液与浓缩同温度，可节药50%以上的蒸汽，操作很简便，减少了操作人员。

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.