64results about How to "Continuous extraction" patented technology

An interstitial fluid (ISF) extraction device includes a penetration member configured for penetrating a target site of a user's skin layer and, subsequently, residing in the user's skin layer and extracting an ISF sample therefrom and at least three concentrically-arranged pressure rings, each adapted for applying pressure to the user's skin layer in the vicinity of the target site while the penetration member is residing in the user's skin layer. In addition, the ISF extraction device is configured such that (i) the pressure rings apply pressure in an oscillating manner with asymmetric deployment and retraction cycles and (ii) only one of the at least three concentrically-arranged pressure rings is deployed at a time, thereby mitigating an ISF glucose lag of the ISF sample extracted by the penetration member.

Systems and methods are provided for extracting a bodily fluid sample (e.g., an interstitial fluid sample) and monitoring an analyte therein. Certain of the systems include a a penetration member configured for penetrating and residing in a target site of a user's skin layer and, subsequently, extracting a fluid sample therefrom. The system also includes a pressure ring(s) adapted for applying pressure to the user's skin layer in the vicinity of the target site. The system is configured such that the pressure ring(s) is capable of applying pressure in an oscillating manner. Certain methods include penetrating the skin and applying pressure to the skin in an oscillating manner.

The invention discloses a method for continuously extracting antibactial substances and antioxidant substances from pyrolignucs acid; in the method, the pyrolignucs acid stock solution is extracted to be colourless by ethylacetate, extract liquid is extracted for at least three times with NaHCO3 with 1:1 volume ratio, the NaHCO3 extract liquid is mixed and the pH value of the mixed NaHCO3 extract liquid is adjusted to be the pH value of original pyrolignucs acid, and then the mixed NaHCO3 extract liquid is extracted for at least three times by ethylacetate with 1:1 volume ratio, pressure reduction distillation and drying are carried out to the obtained extract liquid to obtain solid which is the antioxidant substance, and the remaining solution is extracted for at least three times by Na2CO3 with 1:1 volume ratio, the Na2CO3 extract liquid is combined, and the pH value of the mixed Na2CO3 extract liquid is adjusted to be the pH value of original pyrolignucs acid, and the mixed Na2CO3 extract liquid is extracted for at least three times by dichloromethane, and the normal pressure distillation and drying are carried out to the extract liquid to obtain the solid which is the antioxidant substance. The antibactial substance and the antioxidant substance which are extracted have strong bacteriostasis and antioxidant effect compared with the pyrolignucs acid stock solution, therefore, the method can be widely applied to the field such as agriculture, food, daily health products and medicines.

The invention provides a water drainage system and method based on a downward extraction borehole, wherein the method comprises the following steps: tripping a protection casing and a breather pipe in the downward extraction borehole, wherein the breather pipe is communicated with the protection casing; extracting gas in the downward extraction borehole through the protection casing, and monitoring whether the negative pressure in the downward extraction borehole reaches the preset value in a preset period; when the negative pressure reaches the preset value in the preset period, opening the breather pipe and employing the pressure difference of the negative pressure and the outside atmospheric pressure to drain the logged water in the downward extraction borehole through the protection casing. The drainage system and method based on downward extraction borehole provided by the invention solve the technical defect in prior art that the logged water in the downward extraction borehole influences continuous gas extracting.

The invention discloses a human body sweat real-time monitoring and sensing system. The system comprises a flexible extensible sensor chip array attached to human skin, a plurality of sensing chips are arranged, the plurality of sensing chips are connected in parallel through a flexible circuit, each sensing chip comprises a nano gold working electrode, an Ag / AgCl reference electrode and a multilayer graphene carbon nanotube microporous pipe connecting the working electrode with the reference electrode, the reactant is attached to the inner wall of the microporous pipe, the reactant corresponds to the constituents detected by each sensing chip, the multilayer graphene carbon nanotube microporous pipe has ductility and does not affect the movement of the skin when attached to the skin, andthe sweat reacts with the reactants on the inner wall of the pipe when flowing through the microporous pipe to generate electric current or voltage signals and determine the condition of each component in the sweat according to the monitoring signals to determine the human health conditions so as to perform early warning for possibly generated diseases and provide medical-grade information for clinical diagnosis and treatment.

The invention relates to the field of chemical industry, in particular to utilization of tobacco. The method comprises the following steps of: crushing dried tobacco powder into powder with grain diameter of not less than 20 meshes; adding water medium in an amount which is equivalently 10-30 times the volume of the tobacco powder to fully soak; performing steam explosion pretreatment to obtain steam explosion pretreatment solution, wherein pressure of the steam explosion pretreatment is not less than 0.04MPa, and the pretreatment time is not less than 60 seconds; and extracting hemicellulose, pectin, cellulose and lignin sequentially and respectively. By using the method, the yield of the hemicellulose reaches up to 90.7 percent, the yield of the pectin reaches up to 12.3 percent, the yield of the cellulose reaches up to 93.6 percent, and the yield of the lignin reaches up to 90.9 percent; and the substances can be continuously extracted.

A powder spray booth includes a booth canopy wall arrangement to contain powder during a spraying operation; and a booth floor that is rotatable relative to the booth wall during a spraying operation. The floor can be rotated about an axis that is also the longitudinal axis of the spray booth. The booth may be generally cylindrical in shape with a round floor. The booth canopy and top are supported on a base frame separately from the floor. By this arrangement, the floor can be rotated relative to the booth canopy. A powder extraction apparatus in the form of a low pressure duct suspended off the floor draws up powder that has collected on the floor. The extraction duct is stationary with respect to the rotating floor during a spraying operation. The floor may also be translated along the axis of rotation between a first position in which the floor can rotate and a second position in which the floor is sealed against a lower edge of the booth canopy wall. The booth canopy and floor are made of composite materials that are very low in conductivity to minimize powder adhering to the floor and booth walls. The booth is thus easy to clean with a substantially shorter time period required for color change.

The invention discloses a preparation technology of pectin in a sunflower disk. The preparation technology of the pectin in the sunflower disk includes: using a smashing machine to evenly smash the sunflower disk, and using a 60 mesh screen to screen sunflower disk powder; destroying enzyme of the screened sunflower disk powder in boiling water for 3min, using 400 mesh gauze to remove filter liquor by filtering the sunflower disk powder, and preserving temperature of filter residues for 30min after using water at 75 degree centigrade to wash the filter residues; filtering the filter residues, adding distilled water into the filter residues according to a material-water ratio of 1:25, and adding hydrochloric acid to adjust PH (potential of hydrogen) value into 2; using a continuous microwave auxiliary extraction device to extract material liquid, and performing secondary extraction on the filter residues; filtering the material liquid, using diluted ammonia water to adjust PH value of the material liquid into a value about 3.5, using 95% ethyl alcohol to deposit the pectin, drying the pectin until the pectin is constant in weight under 50 degree centigrade, and thereby obtaining the final pectin.

The invention discloses a method for rapidly extracting latex. A rapid latex extraction device is composed of a positive and negative plate, a cleaning device and a drying device. A positive electrodeis composed of a conveying device with a surface where a conducting material is attached, and a negative electrode is composed of a conductive electrode plate. The latex is led into the rapid latex extraction device from a latex inlet, the distance of the positive and negative plate is adjusted to make the positive electrode and the negative electrode contact with the latex, a direct current voltage is adjusted, a thin film rubber piece is gathered on the conveying device serving as the positive electrode and is conveyed through the conveying device to the cleaning device to be cleaned, and the thin film rubber piece is dried and packaged to obtain a finished rubber. The method is simple in process, the obtained rubber performance is excellent, rubber ingredients are reserved completely,no flocculation process occurs, and the method is green and environmentally friendly and reduces cost. Man-made influence factors of the process are fewer, continuous production can be achieved, the product quality is stable, and industrialized research is easy.

The invention discloses a small-sized high-speed large dynamic digital receiver system and method. The receiver system comprises a digital analog conversion part and a signal extraction part; the digital analog conversion part adopts an ADC (analog to digital converter) chip; the output of the ADC chip is connected with an FPGA (field programmable gate array) chip logic functional module; the signal extraction part adopts an FPGA chip; the FPGA chip comprises and is sequentially provided with a data conversion module, two levels of FIFO (first in first out) modules, an FFT (fast Fourier transform) module and a super resolution compensation module; a gigabit Ethernet is connected to perform signal outputting after signal extraction. The realizing method of the small-sizes high-speed large dynamic digital receiver system comprises the steps of performing digital analog conversion on a radar simulation signal by the ADC chip, realizing the large dynamic wideband receiving and super resolution compensation processing by the FPGA chip, detecting and sorting the signals in the frequency band, and extracting one or more target signals. The small-sizes high-speed large dynamic digital receiver system is simple in structure, small in size, low in power consumption and strong in hardware reliability, can achieve 10bit sampling bit wide and 4GHz sampling rate, can be used for extracting one or more signals at the same time, and can be applied to multiple fields of radar countermeasure, remote sensing and the like.

The invention discloses a method for continuously extracting flaxseed gum and lignan from flaxseed husks. The method comprises the following steps of 1, crushing flaxseed husks, adding a certain amount of water into the crushed flaxseed husks, stirring with heating until water boiling, and carrying out solid-liquid separation at a water boiling point, 2, concentrating a liquid phase separated by the step 1, adding a certain amount of alcohol into the concentrated solution, stirring and carrying out solid-liquid separation, 3, drying a solid phase separated by the step 2, crushing to obtain flaxseed gum, and recovering alcohol for next treatment, 4, adding alcohol separated by the step 2 into a solid phase separated by the step 1, carrying out dilution, stirring, and carrying out solid-liquid separation, and 5, transferring the alcohol recovered by the step 3 and a liquid phase separated by the step 4 into an alcohol rectifying tower, recycling a distillate of high-concentration alcohol, collecting a rectifying product liquid, adding an inorganic alkali solution into the rectifying product liquid for alkaline hydrolysis, adjusting a pH value of alkaline hydrolysis products to 7 by an inorganic acid, and carrying out concentration, drying and crushing to obtain lignan extract. The method has a high extract yield, a low production cost and no pollution on the environment, and realizes high efficiency, continuous extraction, time saving and labor saving.

The invention discloses a method for extracting panax notoginseng saponins by using a continuous countercurrent ultrasonic extraction combined film technology, belonging to the technical field of extraction and separation of plant effective components. The method mainly comprises the following steps of: adding 40-90 percent ethanol having 6-15 times by weight of the pseudo-ginseng crude powder and carrying out continuous countercurrent ultrasonic extraction for 20-120min at a temperature of 20-50 DEG C with the ultrasonic frequency of 20-80KHz; carrying out membrane concentration on filtering liquid by using 1,000-2,500 parts of ultrafiltration membrane or 100-800 parts of nanofiltration membrane at 20-50 DEG C under 0.4-4.1MPa; adding water into the liquid for diluting after the filtering liquid is subjected to pressure reduction and concentrating to be alcohol-free, or directly adding water for diluting; filtering macroporous adsorption resins and eluting with water, and eluting by using 50-90 percent ethanol; carrying out membrane concentration on peralkaline anion resins by using 100-800 parts of nanofiltration membrane under 0.4-4.1MPa; decoloring; carrying out pressure reduction and concentration; and spray-drying. With low-temperature extraction, high extraction ratio, continuous production and high purification ratio, the quality of the product is guaranteed and the method is simple.

The invention discloses an extraction system of duckweed starch. The extraction system comprises a lifting device, a grinding device, a slag-slurry separation device, a precipitation device and a spin-drying device, wherein a motor is arranged at the top of the lifting device; a transmission chain is arranged in a bin; multiple groups of collection plates for collecting and lifting duckweed are arranged on the transmission chain; the motor drives the transmission chain to rotate; the slag-slurry separation device is provided with a cylinder, and a strip brush is arranged on a spindle in the cylinder; the spin-drying device is provided with a drum which is connected with a vacuum pump through a vacuum pipeline, and the water-containing starch stuck on the surface of the drum is completely pumped by the vacuum pump; and the lifting device, the grinding device, the slag-slurry separation device, the precipitation device and the spin-drying device are connected in turn. The invention also discloses an extraction method for duckweed starch. Through the invention, current blank of starch extraction technology is filled, continuous and efficient extraction of duckweed starch is facilitated after large-scale culture of duckweed, and later utilization and processing of the duckweed starch are convenient.

An integrated apparatus for precisely and synchronously controlling amounts of discharged hydraulic oil and fluid using a motor, includes a housing. A movable dual-piston extractor, a motor and a plunger pump are configured in the housing and sequentially connected. A hydraulic pipeline and a fluid pipeline are connected with the housing to control flows of hydraulic oil and a fluid. A specified amount of fluid sample can be precisely extracted by precisely controlling, according to a control circuit, the number of rotations of the motor, which is indirectly reflected to a travel distance of the lead screw. A motor indirectly drives a lead screw, a nut and a piston to move linearly along a hydraulic chamber through mechanisms including a transmission shaft, and according to a position where the transmission shaft of the motor rotates, the displacement distance of the piston can be measured precisely.

A powder spray booth includes a booth canopy wall arrangement to contain powder during a spraying operation; and a booth floor that is rotatable relative to the booth wall during a spraying operation. The floor can be rotated about an axis that is also the longitudinal axis of the spray booth. The booth may be generally cylindrical in shape with a round floor. The booth canopy and top are supported on a base frame separately from the floor. By this arrangement, the floor can be rotated relative to the booth canopy. A powder extraction apparatus in the form of a low pressure duct suspended off the floor draws up powder that has collected on the floor. The extraction duct is stationary with respect to the rotating floor during a spraying operation. The floor may also be translated along the axis of rotation between a first position in which the floor can rotate and a second position in which the floor is sealed against a lower edge of the booth canopy wall. The booth canopy and floor are made of composite materials that are very low in conductivity to minimize powder adhering to the floor and booth walls. The booth is thus easy to clean with a substantially shorter time period required for color change.

The invention discloses a novel continuous extraction and concentration device, comprising a solvent condensing storage chamber, a vacuum electromagnetic valve, an extraction and concentration chamber, an extracting cup conveyor, an on-line detecting system, a refrigeration heat recovery system, a touch screen all-in-one machine, a vacuum system, an extracting cup, an extract storage tank and a control system. The novel continuous extraction and concentration device can realize the continuous extraction and concentration as well as automatic quality detection of traditional Chinese medicines,increases the production efficiency, and is beneficial to industrialization of automatic extraction and concentration.

The invention provides a method for extracting oil and fat from soybeans through enzymolysis by using a gas-liquid-solid three-phase magnetically-stabilized fluidized bed. Innovation lies in that protease is immobilized on a magnetic carrier, can be regularly distributed by using a magnetic field generated by the magnetically-stabilized fluidized bed and can be of magnetically-stabilized distribution, and then, the soybeans can be subjected to full enzymolysis by the protease so as to extract oil and fat. The method comprises the steps of crushing extruded soybeans, which serve as a raw material, mixing the crushed soybeans and water so as to form a mixture, preheating the mixture to a specified temperature, then, enabling the preheated mixture to enter the bottom of a gas-liquid-solid three-phase magnetically-stabilized fluidized-bed reactor, adding magnetic immobilized protease into a gas-liquid-solid three-phase magnetically-stabilized fluidized bed, enabling the mixture, formed by the soybean powder and the water, and the magnetic immobilized protease to be subjected to reaction and enzymolysis, extracting soybean oil through high-speed centrifugal separation after enzymolysis, inspecting the influence on oil and fat extraction rate caused by the protease dosage, reaction temperature, pH value and mixed material-liquid ratio of the magnetic immobilized protease in the magnetically-stabilized fluidized-bed reactor by taking oil and fat extraction rate as a reference index, and searching reaction parameters of the magnetically-stabilized fluidized-bed reactor.

The invention provides a black body light source with the adjustable color temperature. The black body light source comprises a large integrating sphere, a small integrating sphere, a xenon lamp light source, an optical beam splitter, halogen tungsten lamp light sources, light selection assemblies, iris diaphragms, a spectrum collection system and a master control system. The large integrating sphere and the small integrating sphere are connected through the iris diaphragms. The xenon lamp light source is connected with the large integrating sphere through the optical beam splitter. The halogen tungsten lamp light sources are connected with the large integrating sphere. Some light selection assemblies are arranged between the optical beam splitter and the large integrating sphere, and the other light selection assemblies are arranged between the halogen tungsten lamp light sources and the large integrating sphere. The spectrum collection system is arranged below a light outlet of the small integrating sphere. The master control system is connected with the light selection assemblies, the spectrum collection system, the xenon lamp light source and the halogen tungsten lamp light sources. The invention further provides a color temperature adjusting method for the black body light source with the adjustable color temperature. The black body light source with the adjustable color temperature can be operated accurately, reliably and conveniently.

Container equipment which can integrate an animal cell culture reactor and a separator is applied in experimental and production processes of animal cell culture and animal cell's metabolite extraction in the field of bio-fermentation engineering. The equipment is composed of an external tank with an elevating wall for adjusting volume and an internal tank with a fixed volume, and two work systems, namely an agitatory animal cell culture reactor and a separator, are configured. When the external tank and the internal tank are combined, the formed inner space can be used as a reactor to support the cell culture fermentation process under the control of an automation procedure. When the elevating wall is lifted by a hydraulic device, a separate disengagement chamber formed at the bottom of the tank is used to support the separation and extraction process under the control of the automation procedure. By the adoption of the equipment, cell metabolite can be extracted timely, continuously and conveniently, hygienic requirements can be guaranteed, and production efficiency can be raised.

The invention discloses a constant-temperature rapid nutrient extraction device and an extraction method for continuous film-coated slow-controlled release fertilizers. The extraction device comprises a constant-temperature water tank, an electric heater, an extraction cup, an extraction cup cover, and an extraction mesh bag. etc., above the water surface in the constant temperature water tank, the extraction cup fixing plate is fixedly installed, and the extraction cup fixing plate has an extraction cup hole, and the extraction cup is fixed through the fixing plate, and the extraction cup cover is connected to the extraction cup through a hook. Lift the net bag, after the extraction liquid reaches the set temperature, put the extraction bag containing the fertilizer into the extraction cup, seal the extraction cup through the stainless steel cover with silicone pad, and extract the stainless steel sample from the mesh bag when sampling Take it out and put it back into the extraction cup that has reached the set temperature, saving the process of reheating the extraction liquid. The invention solves the technical problem of rapid leaching of the release rate of controlled-release fertilizers at high water temperatures in industrial production, and is suitable for rapid measurement of nutrient release rates and on-line quality detection of slow-controlled release fertilizer manufacturers.

A process for producing saponin and rhamnose from turmeric belongs to the technical field of saponin extraction. The method comprises the following steps of: (1) pulverizing a dried turmeric material; (2) mixing the sieved material with low molecular alcohol and stirring into homogenate; (3) heating the homogenate and then sending into a ceramic membrane extraction apparatus for extraction; (4) adding acid liquor into the concentrated mixed liquid for hydrolysis, filter pressing the solid-liquid mixture after hydrolysis, and drying to obtain a hydrolyzate; (5) mixing the hydrolyzate with petroleum ether, sending into the ceramic membrane extraction apparatus for extraction, performing crystallization separation on the extracted mixed liquid to obtain a saponin crystal substance; (6) adding the acid hydrolysis waste water in step (4) into lime water for neutralization, and then decolorizing, separating, concentrating and crystallizing to obtain the rhamnose. The process for producing saponin and rhamnose from turmeric achieves the clean production of the saponin, the acid hydrolysis waste water generated during production is less than 5% of a traditional process, and the yield of saponin is improved by 30% or above.

The invention discloses a method for extracting high-purity ceramide from rice bran. The method comprises the following steps: (1) pretreatment: cleaning the rice bran raw material, grinding and sieving; and then performing enzymolysis and filtration to obtain enzymolysis rice bran; (2) microwave countercurrent extraction: adding an organic solvent into the enzymolysis rice bran, and performing microwave countercurrent extraction and thermal-insulation filtration to obtain rice bran extract; (3) concentration: concentrating the rice bran extract and recycling the organic solvent to obtain a rice bran concentrate; (4) organic solvent extraction and separation: stirring and extracting the rice bran concentrate with the organic solvent, and performing vacuum concentration to obtain a tarry lipid mixture; (5) performing silica gel chromatography adsorption separation, eluting the organic solvent and collecting the ceramide target fraction; and (6) concentrating and drying to obtain a ceramide product. The method disclosed by the invention has the advantages of simple technology and low energy consumption and cost and is suitable for industrial continuous production; and the purity of the obtained ceramide product is greater than or equal to 99%, and the yield is greater than or equal to 0.075%.

The invention provides a method for obtaining ethylene glycol and diethylene glycol from a recovered solution, which comprises the following steps of: atmospheric distillation: carrying out atmospheric distillation on the recovered solution, and separating out methanol to obtain a first mixed solution; negative-pressure evaporation: carrying out negative-pressure evaporation on the first mixed solution, and separating out a steam substance which contains diethylene glycol and ethylene glycol; and negative-pressure rectification: carrying out negative-pressure rectification on the steam substance to separate out a second gas-phase substance and a second mixed solution containing diethylene glycol, the second gas-phase substance containing ethylene glycol. According to the method, the ethylene glycol and the diethylene glycol in the recovered solution are separated by adopting a normal-pressure rectification and negative-pressure film evaporation mode, and then the ethylene glycol is separated by virtue of negative-pressure rectification, so that the recovery rate of the ethylene glycol is 99% or above, and the recovery rate of the diethylene glycol is 70%-80%. The equipment can perform continuous operation to continuously extract ethylene glycol and diethylene glycol, and is high in working efficiency.

The invention discloses a latex extraction device with an extremely strong electric field. The latex extraction device consists of positive and negative plates, a spray cleaning device and a drying device; the positive electrode is composed of a conveying device with a conductive material attached to the surface; and the cathode consists of a conductive electrode plate. The method for extracting the latex by the extremely strong electric field is a method for continuously extracting the latex by constructing the extremely strong electric field, and comprises the following steps of: feeding the latex into an extremely strong electric field latex extracting device from a latex inlet, adjusting direct-current voltage, and adjusting the minimum distance between two poles of the extremely strong electric field; extracting the latex by the extremely strong electric field to obtain residual liquid and a rubber sheet on the other side; and continuously discharging the rubber sheet condensed on the positive electrode roller through a traction device. The method is simple in process, the obtained rubber is excellent in performance, meanwhile, rubber components are completely reserved, no flocculation process exists, the method is environmentally friendly, and the cost is saved. The method has the advantages of few human influence factors, realization of continuous production, stable product quality, low energy consumption, high extraction efficiency, and easiness in industrial research.

PCT No. PCT / ES96 / 00215 Sec. 371 Date Sep. 15, 1997 Sec. 102(e) Date Sep. 15, 1997 PCT Filed Nov. 15, 1996 PCT Pub. No. WO97 / 19187 PCT Pub. Date May 29, 1997A batch fermentation is carried out continuously or semicontinuously using strain of Streptomyces clavuligerus for the production of clavulanic acid. The fermentation process is carried out with strict control of the soluble phosphate in the medium both at the beginning and throughout the process.

The invention relates to a method and a device for continuously extracting starch in corn fiber skin by an enzymic method. The device comprises a motor, an extraction barrel, a screw conveyer bar and a storage tank, wherein the screw conveyer bar is arranged in the extraction barrel, and a hydrolysate outlet is communicated with the storage tank. The method comprises the following steps of: (1) preparing an extracting solution; (2) carrying out backward motion contact on the corn fiber skin and the extracting solution to hydrolyze starch in the corn fiber skin; and (3) when the content of the starch in corn fiber skin residues is larger than 1.5 wt%, regulating through reducing the feeding speed of the corn fiber skin, prolonging the hydrolysis time and / or improving the hydrolysate adding speed; and when the DE (Dextrose Equivalent) value of the hydrolysate is smaller than 15%, regulating through reducing the feeding speed of the corn fiber skin, prolonging the hydrolysis time and / or improving the amylase concentration of the extracting solution. The stable and continuous extraction of the starch in the corn fiber skin is realized by the method provided by the invention, the extraction efficiency is high, and the yield is high; and the hydrolysate concentration is high, which is as high as 3-5 times of intermittent extraction concentration.

The invention provides a separation and extraction method for sulfur powder in water during preparation of insoluble sulfur. The method is characterized by comprising the following steps: pumping slurry formed by water and crude insoluble sulfur powder into a separation tank by using a pump, wherein an extraction solvent is added into the separation tank, settling sulfur particles to enter the solvent, pumping a mixture of the solvent and the sulfur particles into the upper part of an extraction tower by using a pump, pumping the solvent to the lower part of the extraction tower by using a pump, allowing the solvent flowing out from the top of the extraction tower to return to the separation tank, performing evaporation on part of the solvent to recover the solvent to obtain soluble sulfur, adding a stabilizer into insoluble sulfur and a solvent flowing out from the bottom of the extraction tower, performing filtration, and performing evaporation to recover the solvent and obtain the purified insoluble sulfur.

The invention discloses a continuous extraction device and a continuous extraction method adopting the continuous extraction device. The continuous extraction device comprises an extraction kettle and a distillation kettle, wherein the extraction kettle is provided with a material inlet, an extraction liquid outlet and an extraction agent liquid return opening, the distillation kettle is providedwith an extraction liquid inlet, a solute outlet and an extraction agent steaming outlet, the extraction liquid outlet of the extraction kettle is connected with the extraction liquid inlet of the distillation kettle through an extraction liquid pipe, the extraction agent steaming outlet of the distillation kettle is connected with the extraction agent liquid return opening of the extraction kettle through an extraction liquid pipe, and the ratio of the distance H2 from the extraction liquid outlet to the liquid surface of the extraction kettle to the distance H1 from the extraction liquid outlet to the extraction liquid inlet is equal to the density ratio of high-density extraction agents and low-density raw solvent. The continuous extraction device has the advantages that the whole extraction process can be continuously carried out, and the manual operation is not needed. In addition, through the design, the height of the whole extraction device can be reduced, and the requirement on production places is low.

The invention discloses a method to rice protein by alkali, including the technical step in sequence: rice washing, lye soaking, slurry milling, stir-extracting, separating, acid precipitation, separating and drying; NaOH solution soaking: concentration 0.05-0.15mol / L, solid-liquid ratio 1 to 6-8 and soaking time for 2-3 hours; the stir-extracting is to stir by keeping mixed liquor pH 11, the acid precipitation is isoelectric precipitation, i.e. it adjusts pH value by HCl to 5.5 to precipitate protein; the drying temperature is limited below 50 deg.C. It can continuously extract rice protein on a large scale. Its extraction rate is high and its fat content is low.

The invention provides a method for producing schisandra extract by adopting high voltage pulse electric field technology. As the high voltage pulse electric field extraction technology is adopted to extract schisandra active ingredients at normal temperature, the raw type state of schisandra is remained to the maximum degree and simultaneously, the product quality and productivity are improved while the production cost is reduced. The process is advanced, the extracting time is short, the technology is novel and the extraction rate is high. The method realizes the integration of normal-temperature extraction and sterilization, guarantees no degradation of thermosensitive substances, continuously and quickly extracts and is energy-saving, environment-friendly and high-efficiency.