16 results about "Reflux extraction" patented technology

The invention relates to the technical field of extraction and concentration units, in particular to an automatic extraction and concentration hot reflux extraction and concentration unit which comprises an extraction box, a motor is fixedly connected to the bottom end of the extraction box, a stirring and heating rod is fixedly connected to the output end of the motor, and a heating part is fixedly connected to the outer wall of the stirring and heating rod. A real-time monitoring mechanism is arranged, a condensate amount monitoring assembly in the real-time monitoring mechanism monitors the pressure change generated on a water baffle when condensate in a detection pipe is accumulated through a pressure sensor, converts a pressure change signal into an electric signal and transmits the electric signal to a PLC, and therefore the amount of the condensate is monitored in real time; the condensate concentration monitoring assembly calculates the concentration of the condensate through a light-emitting plate and a photoresistor plate according to the change of the resistance value of the photoresistor plate caused by different light absorption and scattering degrees of the condensate with different concentrations, and the real-time regulation and control mechanism is electrically connected with the PLC, the heating piece and the stirring heating rod to form a regulation loop.

The present application relates to a traditional Chinese medicine hot reflux extraction device and an extraction process control method, which achieves stable control of the concentration of the extraction solvent during the hot reflux extraction process of traditional Chinese medicine, and achieves stable control of the quality of the concentrated extract, thereby achieving the goals of improving extraction efficiency, ensuring the stability of the extract quality, and reducing energy consumption. The present invention uses an online detection system to achieve online detection of the alcohol content of the solution in the tank. By configuring the ethanol preparation tank to adjust the concentration of the added ethanol online, the concentration of the ethanol solvent in the tank can be accurately controlled, thereby ensuring the stability of the quality of the hot reflux extract.

This utility model discloses a preparation device for total flavonoid extract from alfalfa, comprising: a pulverizing device, a hot reflux extraction device, a distillation device, a centrifuge, an extraction device, a first waste liquid tank, a first conditioning device, a resin adsorption device, and a second waste liquid tank. The first inlet of the distillation device is connected to the outlet of the hot reflux extraction device; the outlet of the distillation device is connected to the inlet of the centrifuge; the outlet of the centrifuge is connected to the inlet of the extraction device; the inlet of the first waste liquid tank is connected to the outlet of the extraction device; the inlet of the first conditioning device is connected to the outlet of the extraction device; the inlet of the resin adsorption device is connected to the outlet of the first conditioning device; the outlet of the resin adsorption device is connected to the third inlet of the distillation device; and the inlet of the second waste liquid tank is connected to the outlet of the resin adsorption device. This utility model can extract total flavonoid compounds from alfalfa with high extraction efficiency and good purification effect.

The invention relates to the technical field of production equipment and process of homology of medicine and food, and discloses extraction equipment of a novel cistanche deserticola extract instant in drinking wine and a preparation method of the cistanche deserticola extract. The device comprises a supporting base, a console is mounted on one side of the upper surface of the supporting base, a double-effect reflux extraction tank is mounted above the supporting base, the upper end of the double-effect reflux extraction tank is communicated with a feeding port, the lower end of the double-effect reflux extraction tank is communicated with a first conveying pipe, one side of the first conveying pipe is communicated with a filtering channel, and the other side of the first conveying pipe is communicated with a second conveying pipe. One side of the filtering channel is communicated with a waste residue collecting box, the lower end of the filtering channel is provided with a filtrate collecting box, a conveying pump is installed in the filtrate collecting box, one end of the conveying pump is communicated with a second conveying pipe, the other end of the second conveying pipe is communicated with a low-temperature alcohol precipitation tank, and under the mutual cooperation of all the devices, linkage of multiple processes such as water extraction, alcohol precipitation and freeze-drying is achieved; the production efficiency is improved, the product is easier to dissolve in drinking wine, and the instant solubility is improved.

The anti-explosion boiling reflux extraction device provided by the utility model comprises a heating component, an extraction component, a condensation component and a condensate supply device, the extraction component is connected with the heating component, the condensation component is connected with the extraction component, the condensate supply device is connected with the condensation component, and the reflux extraction device further comprises a condensation cover, the condensation cover is arranged at the joint part of the condensation part and the extraction part and is sleeved on the extraction part, steam in the extraction part is condensed to form small liquid drops, and the small liquid drops flow back to a solution in the extraction part along the inner wall of the extraction part, so that the problem of explosion boiling is effectively solved. Meanwhile, according to the anti-explosion boiling reflux extraction device disclosed by the utility model, the accurate control on heating reflux is further realized by adjusting the flow rate of condensate of each component and the start-stop and heating power of the heating component.

The invention provides a method and process for extracting total asiaticoside from centella asiatica, and relates to the technical field of organic chemical agent manufacturing, and the extraction method comprises the following steps: pretreating and crushing raw materials; performing water reflux extraction; adsorbing and purifying by using macroporous resin; carrying out alcohol precipitation impurity removal and concentration, controlling the evaporation temperature and the vacuum degree in the concentration process to adjust the feeding flow rate, so that the liquid medicine uniformly forms a film, and concentrating until the specific gravity of the liquid medicine is 1.2 to obtain thick paste; and closing the heating system after concentration is finished. According to the invention, the heat loss rate of asiaticoside can be reduced, the output is increased, and the circulation rate is increased through a condensation recovery system, so that the consumable cost and the equipment cost are effectively reduced, efficient and mild material treatment is realized through a falling film evaporation technology, and by utilizing the synergistic effect of film flow and vacuum low temperature, the product quality is improved. And the solvent is quickly removed within an extremely short heating time, so that the heat-sensitive asiaticoside is protected from being degraded and discolored to the greatest extent.

The invention relates to the technical field of hot reflux extraction tanks, in particular to a hot reflux extraction tank with an automatic deslagging function, which comprises a tank body, a feeding block is mounted at the front end of the tank body, a discharging block is mounted at the rear end of the tank body, a roller is rotatably mounted in the tank body, a crushing assembly and a conveying assembly are mounted in the feeding block, and the crushing assembly and the conveying assembly are mounted in the discharging block. And an extrusion assembly is installed in the discharging block, a driving mechanism is installed among the roller, the conveying assembly and the extrusion assembly, and a heating rod is installed at the bottom of the inner wall of the tank body. According to the medicinal material extraction device, assembly line type hot reflux extraction and automatic residue discharging of medicinal materials are achieved through the feeding block, the roller and the discharging block, all the assemblies are synchronously driven by the driving mechanism to operate in a coordinated mode, the problems that traditional equipment is low in batch type production efficiency and wastes time in residue cleaning are solved, and the continuity, efficiency and automation level of medicinal material extraction are improved.

The present invention relates to the technical field of extraction and concentration units, and specifically to an automatic liquid extraction and concentration hot reflux extraction and concentration unit, comprising: an extraction box, the bottom end of which is fixedly connected to a motor, the output end of the motor is fixedly connected to a stirring and heating rod, and the outer wall of the stirring and heating rod is fixedly connected to a heating element. A real-time monitoring mechanism is provided, wherein a condensate amount monitoring component monitors the pressure change on the water baffle when condensate accumulates in the detection tube through a pressure sensor, converts the pressure change signal into an electrical signal and transmits it to a PLC controller, thereby monitoring the amount of condensate in real time; the condensate concentration monitoring component calculates the concentration of the condensate through a light-emitting board and a photoresistor board according to the different degrees of light absorption and scattering of condensate of different concentrations, resulting in changes in the resistance value of the photoresistor board, and the real-time control mechanism is electrically connected to the PLC controller, the heating element, and the stirring and heating rod to form a regulation loop.

The invention discloses a method for extracting high-purity imperatorin from angelica dahurica, which comprises the following steps: compounding angelica dahurica medicinal materials, performing hot reflux circulating extraction, reducing the degree, performing graded elution, concentrating, scheduling, freezing to remove impurities, reducing the degree, performing secondary graded elution, crystallizing, recrystallizing and performing vacuum drying to obtain an imperatorin pure product with the purity higher than 99%. The used raw materials are wide in source and easy to obtain, the used extraction equipment is common, the cost of the extraction solvent is low, the purification process is convenient and fast, an organic solvent with strong volatility and irritation is not used, and a novel green and environment-friendly industrial production method is provided for preparing the high-purity imperatorin.

The invention relates to the technical field of traditional Chinese medicine detection, in particular to a detection method and identification application of a trogopterus dung medicinal material. The detection method comprises the following steps: adding an extraction solvent into a trogopterus dung medicinal material, mixing, carrying out hot reflux extraction on the obtained mixture, and filtering to obtain a test solution; the extraction solvent is alcohol; performing high performance liquid chromatography-mass spectrometry combined detection on the test solution, and determining the expression quantity of the marker; the marker comprises at least one of xanthine, tryptophan and 2, 4-dihydroxybenzoic acid. According to the detection method of the trogopterus dung medicinal material, the key markers in the trogopterus dung medicinal material can be detected, and the specification and authenticity of the trogopterus dung medicinal material can be accurately identified by measuring the expression quantity of the markers.

The utility model discloses an oil washing tower, and relates to the technical field of chemical equipment, the oil washing tower comprises a first cylinder, a second cylinder, a third cylinder, an upper seal head, a lower seal head, a gas-liquid contact tray assembly and a skirt support mechanism; a plurality of manholes and a plurality of first temperature detectors are uniformly arranged on the side walls of the first barrel, the second barrel and the third barrel from top to bottom; a tower top cold reflux inlet, a carbolic oil circulating gas phase return port and a carbolic oil fraction outlet are respectively formed in the side wall of the first barrel; a middle-section backflow inlet, a middle-section backflow extraction opening, a wash oil gas circulation return opening and a wash oil outlet are formed in the side wall of the second barrel, a feeding opening is formed in the side wall of the third barrel, and a waste liquid output opening is formed in the bottom of the lower sealing head; the gas-liquid contact tower tray assemblies are uniformly distributed in the first barrel, the second barrel and the third barrel. Through a segmented modular structure, multi-stage tray mass transfer, precise temperature control backflow and a circulation system, efficient separation and energy consumption optimization are realized.

The utility model belongs to the technical field of traditional Chinese medicine processing, and particularly relates to a traditional Chinese medicine hot reflux extraction thickener which comprises a main shaft, the main shaft is rotatably installed on an upper tank body, the inner side of the upper tank body is connected with a supporting frame, the main shaft is rotatably inserted in the supporting frame, and the bottom end of the main shaft is connected with an isolation box. The isolation box comprises a lower shell and an upper shell which are connected through bolts, a hinge type stirrer is installed on the portion, above the supporting frame, of the main shaft, the bottom end of the upper tank body is connected with a lower tank body through bolts, and a driving mechanism is connected between the upper tank body and the lower tank body. Medicinal materials can be separately placed in the isolation box, so that medicine residues can be conveniently separated and taken out after concentration is finished; the isolation box synchronously rotating with the main shaft is matched with water flow conveyed by the hinge type stirrer to efficiently contact and mix with the solvent, so that the dissolving efficiency is improved; the lower tank body is driven by the driving mechanism to be opened so that personnel can take and place medicine residues conveniently.

The utility model discloses a purification treatment device for gas detection, which relates to the technical field of waste gas purification and comprises a treatment box and a gas detector fixedly embedded on the inner wall of the top surface of one side of the treatment box, the device further comprises an adjusting and closing unit arranged outside the treatment box, a filtering and purifying unit arranged on the adjusting and closing unit and a backflow pumping assembly arranged on the treatment box. The adjusting and sealing unit comprises a bearing box, a screw rod, a supporting block, an extension sleeve and a sealing supporting plate; the filtering and purifying unit comprises purifying filter cotton, a filter plate, a water tank, a water conveying pipe, a conveying pump and a spraying plate. According to the device, the lead screw is controlled to rotate forwards and backwards on the bearing box, one supporting block in threaded connection with the lead screw can drive the extension sleeve to ascend and descend on the bearing box to adjust the exposed area under the stress effect, and the closed supporting plate is driven by the extension sleeve to flexibly adjust the distance between the closed supporting plate and the treatment box. And the equipment is simple and labor-saving in overall maintenance and assembly of the purification filter.

The invention belongs to the technical field of extraction and purification of natural products, and provides a rapid preparation method of high-purity pedunculoside. Optimized ethanol reflux extraction is combined with a multi-step integrated purification process, and the method specifically comprises the steps of raw material pretreatment, ethanol water solution heating reflux extraction, filter residue repeated extraction, filtrate combination and vacuum concentration, distilled water dispersion and precipitation, activated carbon decoloration, petroleum ether deoiling, methanol water solution recrystallization and the like, and finally a high-purity pedunculoside product is obtained. The process is simple and efficient, avoids complex operation of traditional column chromatography purification, has the outstanding advantages of high product purity, short operation period, low solvent consumption, easiness in large-scale amplification and the like, and is suitable for industrial large-scale production.

The invention discloses a rotary evaporator with a reflux extraction function. The rotary evaporator is characterized in that a flow guide structure is arranged at the lower end of a snake-shaped condensation pipe, a first port communicated with the condensation pipe, a second port communicated with a collection bottle and a lower port communicated with an evaporation bottle are formed in the middle of an inclined conical sleeve; the outer wall of the conical flow guide valve is attached to the inner wall of the sleeve, and a feeding channel, an evaporation inlet channel, a first condensation outlet channel, a second condensation outlet channel and a backflow outlet channel are integrated in the conical flow guide valve. When the diverter valve is rotated to a first working position, the first condensation outlet channel is aligned with the first port, and the second condensation outlet channel is aligned with the second port, so that a concentration function that solvent steam in the evaporation bottle flows into the collection bottle after being condensed is realized; when rotating to a second working position, the reflux outlet channel is aligned with the first port, so that the evaporation bottle is communicated with the snake-shaped condensation pipe to form a closed loop, and a solvent circulating reflux extraction function is realized. The device can improve the experiment efficiency and reduce the system pollution risk, and is suitable for laboratory solvent concentration and material extraction scenes.

The invention discloses a production and preparation process of high-purity Maixiangyu saponin E, and belongs to the field of natural product chemistry. According to the process, the Agrostis gigantean saponin E is efficiently prepared by taking Agrostis gigantean as a raw material, and the Agrostis gigantean saponin E is prepared through the stepped flow of raw material degreasing pretreatment, 70% water and alcohol reflux extraction, n-hexane-ethyl acetate-n-butyl alcohol sequential solvent distribution, macroporous resin (HP-20 / XAD-7) enrichment, silica gel column gradient chromatography, preparative C18-HPLC (high performance liquid chromatography) refining and trehalose / cyclodextrin co-freeze-drying stabilization. The method has the advantages that directional enrichment and purification of target components are realized, process parameters are controllable, the product purity is larger than or equal to 95%, the storage stability is obviously improved (the degradation rate is smaller than 0.6% after 12-month storage in a dark place at the temperature of-20 DEG C), the operation process meets the industrial production requirement, and the industrial applicability is good.