Background technology
The contained complex chemical composition of Chinese medicine has carbohydrate, amino acid, protein, organic acid, alkaloid, flavonoids, quinones, terpene, glycoside, volatile oil, grease, wax, pigment, tannin, inorganic salts etc. usually.Every kind of Chinese medicine all contains thousands of kinds of chemical compositions, and in these compositions, some has obvious biological activity and plays the curative effect effect, often is called active ingredient, such as alkaloid, flavonoids, terpene, organic acid etc.Chinese medicine is developed to the products such as Chinese medicine, health products at first to be needed Chinese medicine is extracted.Extracting is exactly the process that the active ingredient in the Chinese medicine is dissolved out from plant tissue with suitable solvent.The technological parameters such as extracting method, extraction solvent and concentration thereof are most important to the acquisition of Effective Component of Chinese Medicine.Usually content is more little for active ingredient in the Chinese medicine, if the process parameter controls such as extracting method, extraction solvent and concentration thereof are improper, will make extracts active ingredients incomplete, even extract not out, has a strong impact on the curative effect of its product.
Existing hot reflux is extracted concentrator because the evaporation recovered solvent directly falls after rise to extractor, because the recovery solvent strength that obtains behind the evaporation-condensation is unstable, carrying out along with hot reflux circulation extraction, extraction solvent strength in the extractor can change and change Extraction technique, in fact changed the technological requirement that medicine, health products or extract are produced, do not met medicine, health products or extract the production of material GMP code requirement.
The patent that concentrator is extracted at present relevant hot reflux is mainly reflected in and saves the extraction solvent, saves extraction time, reduces aspects such as extracting concentrated energy resource consumption.
For example, disclose a kind of hot reflux in Chinese patent application number 201110026747.0 " the improved hot reflux extraction concentrators " and extract concentrator, formed by concentration tank, extractor, the pump housing and the circulation line that connects described concentration tank, extractor and the pump housing at least.Mainly be to take full advantage of the above cylindrical shell heat energy of liquid level, effectively increase evaporating surface, have the raising thickening efficiency, guarantee the concentrate quality evenly, shorten concentration time, reduce concentrated energy consumption, strengthen the froth breaking ability of concentration process, thoroughly solve the advantage such as barrel coking problem.
A kind of hot reflux extracting-concentration machine group of processing Chinese medicine is disclosed in Chinese patent application number 200810031387.1 " the hot reflux extracting-concentration machine groups ", it is characterized in that between the condenser condenses liquid outlet that has the hot reflux unit now and extractor condensate liquid refluxing opening, being connected with vacuum conversion tank, be connected with little condenser between demister outlet and the cooler cooling liquid inlet, the cooler cooling liquid outlet connects the oil water separator entrance point.After increasing vacuum conversion tank, audio inspissator vacuum-pumping is concentrated, converts the condensate liquid under the vacuum state condensate liquid of normal pressure to, is back to carry out normal pressure in the extractor and extract.Increase little condenser, will return in the extractor after the cooling of the steam in the extractor, realize extracting separately.But but not only alcohol extracting, but also water extraction, normal pressure extracts and negative pressure is concentrated carries out simultaneously, and extraction and concentration can use separately, also can use continuously, concentrates, the rate of filtration is fast, and energy conservation and consumption reduction effects is good.
A kind of multi-functional hot reflux extracting-concentration machine group is disclosed in Chinese patent application number 201210041987.2 " the multi-functional hot reflux extracting-concentration machine groups ", comprise extractor, concentration tank, alcohol recycling can and condensing unit, the gas vent at the gas vent at described extractor top and described concentration tank top respectively with described condensing unit treat the conducting of condensed gas inlet fluid, the liquid inlet fluid communication of the condensate outlet of described condensing unit and described alcohol recycling can, the medicine liquid outlet of described extractor bottom is by the liquid inlet fluid conducting at liquid conveyance conduit and described concentration tank top.Its advantage is: extract, concentrated and reclaim integrated work, can reach save time, the laborsaving and purpose of saving cost, and dna purity is high, cocnentration factor is large.
A kind of Chinese-medicinal thermal-refluxing extraction is disclosed in Chinese patent application number 200510027654.4 " Chinese-medicinal thermal-refluxing extractions ", it is characterized in that in lower the uncapping of described extractor, being provided with again the removable stainless steel filter plate with larger aperture and order number of one deck, the extractor liquid outlet is connected with the feed pump input through duplex strainer, the feed pump output divides two-way, one the tunnel is connected with heater, and another road back of pipeline head piece returns with extractor filter plate top tangent connection of tank chamber.Its purpose is smooth, stable in order to design a kind of fluid, is difficult for producing the stifled Chinese-medicinal thermal-refluxing extraction of gas.Compared with prior art, it has be difficult for to stop up, and the extraction of applicable different qualities material is concentrated, and medicinal liquid flow can effectively be controlled, the advantages such as filter screen easily fills, readily removable, easy cleaning.
Disclose a kind of reverse dual reflux in Chinese patent application number 03112719.3 " the traditional Chinese medicine extraction thickener " and extracted thickener, make extraction, concentrated, receiving cream loops simultaneously, also can carry out aromatic oil reclaims, alcohol reclaims, it is to be provided with motor-driven helical blade stirrer axle in extractor, be communicated with the bottom of liquid tube connector with extractor bottom and concentration systems, steam connection tube at extractor top and evaporimeter top is connected with another and is connected to the indirect steam condenser, coiled pipe cooler, the pipeline of oil water separator, under the extractor end socket, be provided with solidifying water aggregation shower, two cover concentration systems are arranged, draining condenser and indirect steam condenser, coiled pipe cooler, oil water separator, the both sides that antithesis is arranged at extractor namely by unidirectional concentrated addition be symmetric double to concentrated, medicine is carried the rate height, the concentrate time is short, energy consumption is low, occupied ground is few, investment is light.
A kind of Chinese-medicinal thermal-refluxing extraction group is disclosed in Chinese patent application number 200510027655.9 " the Chinese-medicinal thermal-refluxing extraction groups ", it is characterized in that the oil water separator delivery outlet is connected with a heating device input port, the heating device delivery outlet is connected with extractor.Its purpose is in order to design a kind of Chinese-medicinal thermal-refluxing extraction group that temperature stabilization, energy-saving effect are showing of extracting.Compared with prior art, it has condensate temperature and promotes and can automatically control, and extraction rate is stable, and the condenser condenses ability such as can normally bring into play at the advantage.
Disclose a kind of traditional Chinese herbs by thermal reflux in Chinese patent application number 200410058127.5 " traditional Chinese herbs by thermal reflux extracts, concentrates unit " and extracted, concentrated unit, this unit is characterized in that mainly the end of described hot reflux condenser (1) is provided with vacuum tank (14), and be connected with vavuum pump at vacuum tank, described vacuum tank is communicated with described vacuum switch (4), have the difference in height that can overcome the poor suction of vacuum between vacuum tank and the extractor between described vacuum tank and the extractor, all pipelines when vavuum pump is worked on this unit all are in connected state.Unit of the present invention is when opening vavuum pump, whole unit is under the vacuum state to be moved, after cooling off through hot reflux condenser, the indirect steam that produces turns back to extractor replenishing as solvent, the temperature of extractor is controlled at low-temperature condition, make solvent repeatedly move in medicinal material surface with infiltrate into medicinal material inside, improve solvent to friction wash-out power and the solubility of medicinal material, increase the soluble substance in the medicinal material and solvent strength is poor and extended capability, improved the rate of extract of Chinese medicine, guaranteed that the active ingredient of medicinal material is not evaporated loss.
Summary of the invention
The present invention seeks to provides a kind of hot reflux to extract concentrator for the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
Concentrator is extracted in hot reflux of the present invention, comprise that extractor, concentration tank, evaporative condenser reclaim solvent tanker, solvent strength on-line determination device, solvent tank and condensing unit and form, described evaporative condenser reclaims solvent tanker between extractor and condensing unit, the solvent that refluxes behind the evaporative condenser is collected in first evaporative condenser and reclaims in the solvent tanker, by solvent strength on-line determination device and solvent tank allotment solvent strength, it is concentrated by concentration tank after the extraction that the solvent that meets concentration requirement just is disposed in the extractor.
Described evaporative condenser reclaims on the solvent tanker solvent strength on-line determination device is installed.
Solvent strength on-line determination device is installed on the described solvent tank.
Described solvent strength on-line determination device reclaims solvent strength in the solvent tanker for detection of evaporative condenser, when the recovery solvent strength is lower than the solvent strength of extraction process requirement, makes the recovery solvent strength reach extraction process by solvent tank interpolation high concentration solvent and require just to be disposed in the extractor.
Described solvent strength on-line determination device reclaims solvent strength in the solvent tanker for detection of evaporative condenser, when the recovery solvent strength meets the solvent strength of extraction process requirement, directly will reclaim solvent discharge to extractor.
Described solvent strength on-line determination device reclaims solvent strength in the solvent tanker for detection of evaporative condenser, when the recovery solvent strength is higher than the solvent strength of extraction process requirement, makes the recovery solvent strength reach extraction process by solvent tank interpolation low concentration solvent and require just to be disposed in the extractor.
Hot reflux of the present invention is extracted concentrator evaporative condenser recovery solvent is carried out concentration determination, regulating the recovery solvent strength by the solvent tank system just is disposed in the extractor after meeting technological requirement, guarantee that solvent strength is stable in the leaching process, improved technology stability in the leaching process, overcome that concentrator is extracted in existing hot reflux because evaporation recovered solvent concentration is unstable and directly be disposed to and cause the unsettled defective of extraction process in the extractor.
The specific embodiment
As shown in Figure 1, concentrator is extracted in hot reflux of the present invention, comprise that extractor 1, concentration tank 2, evaporative condenser reclaim solvent tanker 3, solvent strength on-line determination device 4, solvent tank 5 and condensing unit and form 6, described evaporative condenser reclaims solvent tanker 3 between extractor 1 and condensing unit 6, the solvent that refluxes behind the evaporative condenser is collected in first evaporative condenser and reclaims in the solvent tanker 3, by solvent strength on-line determination device 4 and solvent tank 5 allotment solvent strengths, it is concentrated by concentration tank 2 afterwards to make the solvent that meets concentration requirement just be disposed to extractor 1 interior extraction.
Described evaporative condenser reclaims on the solvent tanker 3 solvent strength on-line determination device 4 is installed.
Solvent strength on-line determination device 4 is installed on the described solvent tank 5.
Described solvent strength on-line determination device 4 reclaims solvent strength in the solvent tanker 3 for detection of evaporative condenser, when the recovery solvent strength is lower than the solvent strength of extraction process requirement, makes the recovery solvent strength reach extraction process by solvent tank 5 interpolation high concentration solvents and require just to be disposed in the extractor.
Described solvent strength on-line determination device 4 reclaims solvent strength in the solvent tanker 3 for detection of evaporative condenser, when the recovery solvent strength meets the solvent strength of extraction process requirement, directly will reclaim solvent discharge to extractor.
Described solvent strength on-line determination device 4 reclaims solvent strength in the solvent tanker 3 for detection of evaporative condenser, when the recovery solvent strength is higher than the solvent strength of extraction process requirement, makes the recovery solvent strength reach extraction process by solvent tank interpolation low concentration solvent and require just to be disposed in the extractor.
The above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.