83results about How to "Improve centrifugation efficiency" patented technology

The invention provides a fully automatic centrifuge apparatus. The fully automatic centrifuge apparatus automatically sends a centrifuged sample into a next operation, has a high automation degree and effectively improves the centrifuge efficiency. The fully automatic centrifuge apparatus comprises a centrifuge for centrifuging the sample, a sample loading mechanism, a sample unloading mechanism and a conveying mechanism for conveying a sample, and the sample loading mechanism picks up the sample to be centrifuged from the conveying mechanism and loads the sample to the centrifuge; and the sample unloading mechanism picks up the centrifuged sample from the centrifuge, and unloads the sample to the conveying mechanism in order to make the sample conveyed to a next operation by the conveying mechanism. The sample loading mechanism and the sample unloading mechanism can automatically realize loading and unloading of the sample in order to make the sample filled into the centrifuge and centrifuged and make the centrifuged sample automatically unloaded; and the conveying mechanism conveys the sample to the next operation without manual operation, so the automation of the centrifuge process is realized, thereby the work efficiency is effectively improved.

The invention relates to a food sample preprocessing instrument for food safety testing and a processing method thereof. The food sample preprocessing instrument comprises lifting motors, guide mechanisms, a multistage drive unit, a servo motor, a stirring motor, stirring rods, a blade and a heating trough. The multistage drive unit, the servo motor, the stirring motor, the stirring rods and the blade effectively and automatically extend into or out of centrifugal tubes by arranging the first lifting motor and the first guide mechanism, automatic ascending and descending of the heating trough are achieved by arranging the second lifting motor and the second guide mechanism, vertical movements of the units are more precise by arranging the first guide mechanism and the second guide mechanism, the stirring rods and the blade rapidly stir and smash the raw material in the centrifugal tubes through the stirring motor and the multistage drive unit, and the centrifugal tubes do not easily disengage from a rotating disc during centrifugation by arranging supporting blocks and centrifugal tube sleeves. The liquid in the centrifugal tubes is not easily splashed during centrifugation by arranging rod sleeves. The food sample preprocessing instrument replaces an existing manual operation method, the human resource cost is saved, and the testing and processing requirements are met.

The invention discloses a stem cell centrifugal device, and belongs to the technical field of stem cell centrifugation. The stem cell centrifugal device comprises a supporting and fixing device, a rotating device, a downwards-pressing device, a rotating plate cover and four centrifugal device bodies, wherein the supporting and fixing device is arranged on a horizontal plane, the rotating device isarranged at the top of the supporting and fixing device, the four centrifugal device bodies are distributed and mounted on the top of the rotating device in a rectangular shape, the downwards-pressing device is mounted at the upper end of the supporting and fixing device and located on the upper portion of the rotating device, and the rotating plate cover is mounted at the lower end of the downwards-pressing device. According to the stem cell centrifugal device, a test tube containing stem cell blood can be firmly fixed through the four centrifugal device bodies, then a test tube opening is sealed through the downwards-pressing device and the cover rotating plate, the centrifugal device bodies are pushed through the rotating device to centrifuge the stem cell blood, and therefore the device is high in centrifugal efficiency on the stem cells in the blood, and good in centrifugal effect, meanwhile, splashing is not likely to happen in a routine process, environmental protection and lowcost are achieved, and stability during centrifugation is good.

The invention discloses a continuous type centrifugal machine used for cell separation, relates to a continuous separating device, and aims to solve the problem that impurity removal operation after centrifuging is complex as influences are caused on cell activity while complex centrifugal operation is performed on an existing centrifugal device. The continuous type centrifugal machine comprises arotary sealed liquid inlet module, a swing stirring mechanism, a rotary platform, a transmission mechanism, a hollow main shaft, a drive motor and a conductive slide ring, wherein the bottom end of the hollow main shaft is fixedly mounted on a rotor rotary shaft of the conductive slide ring; the top end of the hollow main shaft passes through the rotary platform and is fixed to the bottom end ofthe rotary sealed liquid inlet module; the output end of the rotary shaft of the drive motor is connected to the hollow main shaft through the transmission mechanism; the swing stirring mechanism is mounted on the rotary platform; and each outlet end of the rotary sealed liquid inlet module is in sealing connection to one inlet end of the swing stirring mechanism through a pipeline separately. Thecontinuous type centrifugal machine belongs to the technical field of biological cell separation.

The invention discloses an efficient solid-liquid separating centrifugal machine. Materials to be separated are sprayed into a rotary cylinder along a spiral passage of a flow guiding mechanism, the direction of the materials entering the rotary cylinder is consistent with the rotating direction of the rotary cylinder, the flowing direction of fluid in the rotary cylinder cannot be disturbed when the materials to be separated enter the rotary cylinder, the centrifugal separating efficiency of the rotary cylinder is improved, liquid in the materials is thrown out through the rotary cylinder rotating at a high speed and is discharged out of a liquid discharge port after being accumulated through a machine shell, and solid phases in the materials are intercepted on the side wall of the rotary cylinder. When the speed of the centrifugal machine is reduced, a scraper rod vertically moves so that a scraper blade can extend into the rotary cylinder, liquid is stopped entering a liquid inlet pipe, gas sprayed by a gas spraying mechanism enters the rotary cylinder along the spiral passage of the flow guiding mechanism, gas is sprayed to the inner wall of the rotary cylinder, the scraper blade is assisted in efficient scraping of the inner wall of the rotary cylinder, and the scraped solid-phase materials are discharged out of a discharge cylinder. The efficient solid-liquid separating centrifugal machine is reasonable in structural arrangement, the centrifugal separating efficiency is improved, and the solid materials can be scraped away conveniently.

The invention relates to a grease and oil residue separating device, and belongs to the technical field of separating devices. The grease and oil residue separating device comprises a base and a centrifuge body arranged on the base and provided with an upper opening. An annular filter screen is rotatably arranged in the centrifuge body, and a cavity is reserved between the annular filter screen and the centrifuge body; a support is arranged on the base, and a filtering device is arranged on the support; a filter device comprises a filter cylinder which is hollow and is provided with an openingin one end, and a U-shaped filter plate arranged below the filter cylinder; an oil receiving tank is arranged on the base and is positioned below the U-shaped filter plate; the filter cylinder is provided with a pressing assembly, and the support is provided with a track; the filter cylinder is movably arranged on the track, and the support is provided with a rotating assembly for driving the track to rotate; the filter cylinder is also provided with a push-out assembly, and an oil collecting tank is arranged below the centrifuge body; and a discharging device is arranged on the base. The grease and oil residue separating device has the advantages of reducing the labor intensity of workers and improving the efficiency of filtration and centrifugation.

The invention discloses a method for producing anhydrous citric acid crystal through inducing graining by continuous evaporation. The method comprises the following steps of: (1) carrying out double-effect evaporation and concentration; (2) inducing graining by vacuum evaporation, under the conditions of the vacuum degree of -0.092 to -0.095kPa and the temperature of 50-55 DEG C, heating and evaporating the concentrated solution till the density is 1360-1390kg / m<3>, adding 30-60 meshes anhydrous citric acid seed crystal to induce graining; (3) growing the grain; (4) separating the crystals; (5) drying, and obtaining the anhydrous citric acid crystal. The method is simple in technological operation, high in production efficiency, energy-saving and time-saving, moreover, the product is uniform in size and integral, the crystalline form is consistent, the moisture content is low, and the quality is steady, so that the method is suitable for industrial continuous production.

The invention discloses a graphene extraction and separation device comprises a main body and a control cabinet, a mortar is fixedly mounted at the upper end of the main body, a cover is movably mounted at the upper end of the mortar, a grinding rod is movably mounted at the upper end of the cover, a water inlet is fixedly mounted at the right end of the main body, and a fixing ring is fixedly mounted at the front end of the main body; a cabinet door is movably mounted on the outer surface of the front end of the main body, a handle is fixedly mounted at the front end of the cabinet door, anda water outlet is fixedly formed in the bottom end of the main body. According to the graphene extraction and separation device, the graphene extraction and separation device has an electric heating drying and sintering function and a multi-stage extraction effect, and if other impurities fall into an extraction solution in the extraction process, the impurities are separated out; and in addition,the graphene extraction and separation device further has a high-speed centrifugation effect; when raw materials are centrifuged, the raw materials can rotate along with blades and cannot be attachedto the interior of a centrifugal device, and the centrifugal treatment effect on the raw materials is improved.

The invention relates to the technical field of centrifuges and discloses a reagent centrifugal system which comprises a centrifuge, a turnover unit, an image acquisition device and a control unit; the centrifuge is provided with a top cover capable of being opened and closed and a centrifugal portion provided with a plurality of placing grooves for centrifugal tubes; the turnover unit is used incooperation with the centrifuge and is provided with a mechanical arm capable of taking and placing the centrifugal tubes; the image acquisition device can obtain an image of the centrifugal portion in the centrifuge in a state that the top cover is opened; and the control unit is in communication connection with both the image acquisition device and the mechanical arm and can control the taking and placing action of the mechanical arm by analyzing a stop position of the centrifugal portion according to the image obtained by the image acquisition device. For the reagent centrifugal system, byarranging the image acquisition device and the turnover unit and using the control unit to control the actions of the two of the image acquisition device and the turnover unit, taking, placing and position transferring of a reagent in the reagent centrifugal system can be automatically and mechanizedly achieved without manual operation, the taking, placing and position transferring efficiency of the reagent are greatly improved, and thus the centrifugal efficiency of the reagent centrifugal system is correspondingly improved.

The invention discloses a medical blood centrifuge. The medical blood centrifuge can realize synchronous centrifugation of multiple test tubes to achieve high centrifugation efficiency, can improve the rotating stability to prolong the service life, and is simple in structure; the test tubes are only placed in sleeves in use to achieve more convenience; the sleeves of the test tubes can be taken out for cleaning to prevent blood plasma of the test tubes from splashing to pollute the sleeves; the medical blood centrifuge is simple in structure and convenient to use, and greatly prolongs the service life; and through arrangement of suckers, the fixing stability can be improved, and the operation stability is further improved.

The invention discloses a method for producing corn starch with an enzymic method. The method comprises the following steps: (1), raw material handling; (2), primary soaking; (3), secondary soaking; (4), tertiary soaking; (5), steaming; (6), germ crushing and separating; (7), fiber precision grinding and separating; (8), centrifugal separation; (9), washing and waste removal; (10), drying; (11), crushing. The method improves the efficiency of a zymin, reduces the adding cost of the zymin, can improve the yield of corn starch, further improve the yield of protein powder, reduce the water consumption for washing, improve the washing efficiency, improve the centrifugation efficiency, further reduce the power consumption, and improve the economic benefit, thereby having the great application value.

The invention relates to a high-efficiency environment-friendly snow-melting biological liquid preparation which is prepared by the following steps: collected fruit and vegetable wastes are prepared to obtain organic mixed acid, and the organic mixed acid obtained in the step S1 and calcium carbonate powder are added into a reaction kettle for reaction to prepare low-carbon organic acid calcium; the low-carbon organic acid calcium solution prepared in the step S2 are stood and filtered, and water insoluble substances are removed through a centrifugal device; a first threaded rod is rotated, a first threaded cylinder in threaded connection drives a lifting plate to ascend and descend along a first guide rod, then impurities on the inner wall of an inner filter cylinder are scraped away through a first scraper until the lifting plate is taken down from the first threaded rod, and the lifting plate is cleaned; and a second threaded rod is rotated to drive a lifting ring to ascend and descend along a second guide rod through a second threaded cylinder in threaded connection, and then impurities on the inner wall of an outer filter cylinder are scraped away through a second scraper until the lifting ring is taken down from the second threaded rod, and the lifting ring is cleaned.

The invention provides a large-volume biological cell sap concentrating and washing system and a method thereof. The large-volume biological cell sap concentrating and washing system comprises a centrifugal assembly and a concentrating and washing assembly, wherein the centrifugal assembly comprises a centrifugal machine, the concentrating and washing assembly comprises a centrifugal cup, the centrifugal cup is installed on the centrifugal machine, and the centrifugal machine drives the centrifugal cup to rotate at a high speed; the centrifugal cup comprises a static part and a rotating part, the static part and the rotating part are in rotary sealing fit, the rotating part comprises a separation cavity, the separation cavity is a cavity formed by a cup body and an inner core, and when the centrifugal cup rotates at a high speed, cells and liquid in a cell sap sample are separated in the separation cavity. According to the large-volume biological cell sap concentrating and washing system and method, the movement path of the cell sap is long, and centrifugal efficiency is high; meanwhile, the inner core is additionally arranged in the separation cup, so the dynamic volume of the separation cup can be adjusted, the minimum centrifugal force is ensured, the separation effect is further ensured, and the cell recovery rate is improved.

The invention discloses a centrifugal machine for disinfection bath foam preparing, and relates to the technical field of disinfection bath foam preparing. A base is included. A machine case is arranged at the upper end of the base. Side plates are correspondingly arranged on the two sides of the upper surface of the machine case. A machine barrel is arranged between the two side plates. An annular pipe is arranged on the outer surface of the machine barrel in a surrounding manner. One side face of the annular pipe communicates with a connecting pipe. The inner side face of the connecting pipecommunicates with sprayers. The lower surface of the annular pipe communicates with a conveying pipe. An outer drum is arranged in the machine barrel and internally rotationally connected with an inner drum. Through the design of the double drums, the centrifugal force of the centrifugal machine is increased, accordingly, the material centrifuging effect is improved, and solid particles and liquid in liquid materials are more thoroughly separated; and meanwhile, through the link action of an electric air heater and a high-pressure water pump, residual solid particles adhering into the centrifugal machine can be dried and separated, cleaning is easy, operation is simple, and the cleaning efficiency is high.

The invention provides a circulating fermentation technology for cowpeas. The circulating fermentation technology comprises the following steps: adding pickling water with lactic acid bacteria powder into cowpeas for cowpea fermentation; when fermented by the 4nth time, performing centrifugation, water removal, supplementation of new pickling water, lactic acid bacteria powder adding, detection and adjustment on the pickling water for fermentation at the 4nth time, and continuously applying the pickling water to cowpea fermentation, wherein the n adopts a continuous positive integer in sequence; the fermentation is hermitically performed for 40-65 hours under the condition that the temperature of 20 to 24 DEG C; the difference between the new pickling water and the pickling water with the lactic acid bacteria powder is that the new pickling water does not contain the lactic acid bacteria powder. The technology adopts an innovate fermentation method; after performing fermentation by certain times, the pickling water is subjected to centrifugation, water removal, supplementation of new pickling water and the like, so that the pickling water can be recycled; the pickling water raw material and the cost of the preparation technology are reduced, the fermentation time of the cowpeas is shortened, and the quality and the taste of the soaked cowpeas are enhanced; the circulating fermentation technology is suitable for large-scale production and has good economical benefit, and the development of the pickling industry is promoted.

The invention discloses a centrifugal device based on copper powder separating. The centrifugal device comprises a hollow shell; a rotating seat is arranged in the center of the bottom of the shell, is connected to a motor arranged outside the shell, and is provided with a filter barrel; the wall face of the filter barrel is provided with a plurality of through holes, a fixing ring and a filter net are arranged in the filter barrel and are fixed to each other, and the circumference of the filter net is connected to the inner wall of the fixing ring. The centrifugal device is simple in structure, convenient to operate and high in centrifugal efficiency; precipitated copper in etching solution can be filtered and dried effectively, purity of the copper powder is guaranteed, and fine environment is provided to the copper powder for subsequent storage and use.

The invention discloses a multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system which comprises a runway pond. A turbulence carbon dioxide supplement device, an algae cell harvesting device utilizing microbubble back flushing, a flow retaining device and two paddle wheels are disposed in the runway pond, and a groove structure is disposed below each paddle wheel. The multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system is communicated with an algae cell settling pond, a disinfecting pond and a nutritive salt blending pond. The multidirectional-turbulence and efficient-mixing novel runway pond microalgae cultivation system has the advantages that water circulation in the runway pond can be accelerated, and air exchanging frequency between liquid surface and atmosphere is increased; primary concentration of algae cells can be achieved in real time and effectively, and centrifuging efficiency is increased; escaping of dispersed carbon dioxide can be prevented, carbon dioxide utilization rate can be increased, and algae liquid pH can be adjusted fast; convection between the upper layer and the lower layer of the algae liquid can be promoted effectively; continuous microalgae cultivation can be achieved.

The invention discloses a high-efficiency solid-liquid separation centrifuge. The material to be separated is sprayed into the rotating drum along the spiral path of the flow guide mechanism, and the direction of entering the rotating drum is consistent with the turning direction of the rotating drum, so that the material to be separated enters the rotating drum. It will not disturb the flow direction of the fluid in the drum and improve the centrifugal separation efficiency of the drum. The high-speed rotating drum will throw out the liquid in the material, accumulate it through the casing and discharge it from the liquid discharge port, and at the same time trap the solid phase in the material in the On the side wall of the drum, when the centrifuge slows down, the scraper rod moves vertically, so that the scraper blades extend into the drum, and at the same time, the liquid inlet pipe stops entering the liquid, and the gas ejected by the air injection mechanism enters the rotor along the spiral path of the flow guide mechanism. In the drum, air is sprayed on the inner wall of the drum to help the scraper blade scrape the inner wall of the drum efficiently, and the scraped solid-phase materials are discharged through the discharge drum. The high-efficiency solid-liquid separation centrifuge proposed by the invention has reasonable structure and arrangement, improves centrifugal separation efficiency, and is convenient for scraping off solid materials.

The invention discloses a novel medicine blood centrifugation device. According to the device, a plurality of test tubes can be simultaneously centrifuged, the device is high in centrifugation efficiency, rotating smoothness of a centrifugal machine can be improved, and the service life of the device is prolonged. The device is simple in structure, the test tubes can be conveniently used when being placed in sleeves, test tube sleeves can further be taken out and cleaned, and pollution of the sleeves caused by plasma flown out from the test tubes is prevented. The device is simple in structureand convenient to use, the service life of the device is greatly prolonged, fixing stability can be improved by suckers, and running smoothness is further improved.

The invention provides an upgrading method and application of paper-making reconstituted tobacco water paste. The upgrading method comprises the following steps: extraction: extracting a tobacco raw material with hot water, carrying out solid-liquid separation after leaching to obtain a leaching solution, and centrifuging the leaching solution to obtain a tobacco extracting solution; primary concentration: performing vacuum concentration on the tobacco extracting solution to obtain a tobacco water paste primary product; upgrading: adding a food-grade upgrading agent into the tobacco water paste primary product, stirring into paste, uniformly mixing and stirring with an alcohol solution to obtain a treatment solution, centrifuging the treatment solution, precipitating and discarding, and obtaining a supernatant for later use; and secondary concentration: concentrating the supernatant under reduced pressure to the initial solid content of the tobacco water paste to obtain the upgraded tobacco water paste, and recovering the alcohol solution. The upgrading method disclosed by the invention is simple in process requirement, high in yield and suitable for large-batch production. The quality-improved tobacco water paste is used in the formula of the reconstituted tobacco coating liquid, and the aroma quality and taste can be obviously improved.

The invention discloses an underwater separation device with a pre-separation pipeline and an underwater separation method. The device comprises the pre-separation pipeline and a centrifugal separator, wherein the pre-separation pipeline comprises a main gas phase pipe, an inclined liquid phase pipe and liquid falling pipes; the main gas phase pipe comprises an inlet condensate section, a horizontal section and an outlet condensate section which are connected in sequence; the inlet condensate section extends downwards relatively to the horizontal section; the outlet condensate section extends upwards relatively to the horizontal section; the inclined liquid phase pipe is arranged below the main gas phase pipe in an inclined manner; the inlet end of the inclined liquid phase pipe is communicated with the bottom of the inlet condensate section; the liquid falling pipes are respectively arranged between the bottom of the horizontal section and the inclined liquid phase pipe and between the bottom of the outlet condensate section and the inclined liquid phase pipe; the centrifugal separator comprises a pressure vessel tank and a plurality of centrifugal separation pipes; the pressure vessel tank is divided into a gas discharging chamber, a gas inlet chamber, and a liquid discharging chamber; the plurality of centrifugal separation pipes for communicating the gas discharging chamber and the liquid discharging chamber; and a gas discharging opening of the outlet condensate section is communicated with the gas inlet chamber.

The invention provides a cyclone separation device which can improve the efficiency of separating suspended matter in a fluid. In a cyclone type dust collection device, as a cyclone separation device, which has a hollow and substantially tapered second cyclone cylinder, an accelerating area at an upstream side and a centrifugal force amplifying area at a downstream side are arranged in a central axis (X) direction and constitute the abovementioned cyclone cylinder, in the abovementioned accelerating area, the circulation area (Ab) decrease from a start end of the central axis (X) direction to a finish end, and in the abovementioned centrifugal force amplifying area, the circulation area (Ac) decreases from the start end of the central axis (C) direction to the finish end, thus, after the flow velocity of rotating flow rises in the accelerating area, in the centrifugal force amplifying area, the increase of the rate of rise of the velocity of the rotating flow can be inhibited and the velocity (Vc) is enabled to rise, and the rotating times of the rotating flow at a relatively fast flow velocity (Vc) increases, improving the efficiency of separation of suspended matter, i.e. dust, in the rotating flow.

The invention discloses a blood detection and inspection centrifugal pretreatment device, and relates to the technical field of blood detection, the blood detection and inspection centrifugal pretreatment device comprises a bottom plate, hydraulic rods are fixedly connected to the left and right sides of the upper surface of the bottom plate, and the upper ends of the two hydraulic rods are fixedly connected to the lower end of a lifting plate. According to the blood measuring tube fixing device, the hydraulic rod, the lifting plate, the fixing rod, the sliding block, a square plate, a transverse plate, an inclined groove, a first fixing plate and a second fixing plate are matched with one another, so that two arc-shaped clamping plates can be driven to get close to one another, the fixing effect on a blood measuring tube is achieved, and the stability of the blood measuring tube during blood perfusion is guaranteed; according to the blood metering and taking device, an operator does not need to hold a blood metering and taking pipe by hand to conduct blood perfusion, the labor amount of the operator is reduced, and meanwhile the stability of the blood metering and taking pipe can be guaranteed; a sliding plate can be driven to move leftwards through mutual cooperation of an electric push rod, a sliding block and a supporting rod; therefore, the influence on the taking and placing process of the blood measuring tube is avoided.

The invention discloses a full-automatic centrifugal machine. A detection switch is arranged on the side part of a first test tube conveying assembly, the first test tube conveying assembly and a second test tube conveying assembly are arranged in parallel, and a transposition channel is arranged between the first test tube conveying assembly and the second test tube conveying assembly; a reversing mechanism is connected to the side part of the first test tube conveying assembly, a ejecting mechanism is arranged at the tail end of a conveying mechanism and is positioned at the inner side of acentrifugal portal frame, and the tail end of the conveying mechanism extends above a workbench top from the side part of the centrifugal portal frame; centrifugal stations are arranged at the outer side of the tail end of the conveying mechanism, each centrifugal station comprises a limiting frame and a centrifugal carrier, the limiting frames are erected at the upper end of the worktable top, and each centrifugal carrier is arranged at the upper end of the corresponding limiting frame; and a centrifugal mechanism is arranged below the worktable top, a placing port is formed in the position,above the centrifugal mechanism, of the worktable top, a transfer mechanism is connected below the top of the centrifugal portal frame, and the transfer mechanism transfers the centrifuge carriers tothe interior of the centrifuge mechanism through the placing port. According to the full-automatic centrifugal machine, high-efficiency centrifugal treatment of a blood sample is realized.

The invention discloses an immune cell culture method. The method comprises the following steps: S1, preparation work, S2, sample dilution, S3, gradient centrifugation, S4, buffy coat collection, S5, washing, S6, washing, S7, inoculation, S8, addition of feeder cells, S9, culture start, S10, observation and recording, and S11, cryopreservation. According to the immune cell culture method, the conditions that manual operation of cell culture medium blowing is time-consuming and laborious and the blowing effect is poor are avoided, the blowing efficiency is improved, centrifugal treatment of the cell culture medium can be achieved through first centrifugal mechanisms and second centrifugal mechanisms, by arranging four first centrifugal mechanisms and four second centrifugal mechanisms outside a blowing mixing mechanism at one time, multi-station operation is achieved, a large number of immune cells can be cultured at one time, and the device is high in efficiency and is convenient in popularization.

The invention relates to a system for producing crystallized xylose by using xylose mother liquor. The system comprises a raw material tank, a flocculation tank, a primary plate-and-frame filter, a primary ion exchanger, a membrane separator, a chromatographic column, a plate-and-frame filter front tank, a secondary plate-and-frame filter, a secondary ion exchanger, an evaporation tank, a crystallization cylinder, a centrifugal machine and a dryer which are sequentially communicated through pipelines. The invention also discloses a method for producing crystallized xylose by using the xylose mother liquor by using the system. The trapped fluid obtained through membrane separation treatment contains a xylan component, after the trapped fluid is subjected to enzyme hydrolysis treatment, an enzymatic hydrolysate and an extracting solution obtained through chromatographic separation are mixed before secondary filtration and impurity removal, reutilization of the xylan component in the xylose mother liquor is achieved, the utilization rate and utilization value of the xylose mother liquor are increased, and the yield of xylose is also improved.

The invention discloses a centrifugal device for processing the stem cell exosome. The centrifugal device comprises a device body, a mounting plate is fixedly arranged on one side wall in the device body, a second motor is fixedly arranged on the mounting plate, a rotating part of the second motor is fixedly connected with a gear, and a support is further fixedly arranged in the device body. A fixing cylinder is rotationally arranged on the support, and a gear ring is fixedly arranged on the outer surface of the fixing cylinder. A first motor is fixedly arranged at the top of the device body, a first bevel gear is fixedly arranged on a rotating part of the first motor, a second bevel gear is connected to the first bevel gear in an engaged mode, the stem cell exosome is put into the fixing cylinder. And at the moment, the second motor rotates to drive the gear to rotate, the gear rotates to drive the gear ring to rotate, then the fixing cylinder is driven to rotate, and therefore the stem cell exosome is centrifuged; and meanwhile, the first motor rotates to drive the first bevel gear to rotate, and the first bevel gear rotates to drive the second bevel gear to rotate.

The invention discloses a high-speed centrifugation type centrifuge with multiple driving properties. The high-speed centrifugation type centrifuge comprises a main hollow outer case. The high-speed centrifugation type centrifuge can be driven by a driving motor so as to be used in a simple centrifugation mode, and can also be driven by wind power of a turbine. The high-speed centrifugation type centrifuge is high in running speed and high in centrifugal efficiency. The high-speed centrifugation type centrifuge realizes the combination of two driving power sources, and has a wide practical range and few limitations. Moreover, the centrifuge is provided with a helical spring structure elastic type maximum air pressure difference control mechanism so as to realize the maximum air pressure difference between the inside and the outside under the action of the elasticity of a helical spring and prevent the occurrence of component deformation caused by excessive air pressure. In addition, the centrifuge is provided with a spherical structure position-limiting type component connection universal rotation mechanism, and the rotation function of two components is not influenced after connection, so that the situation that the components are stuck due to movement can be avoided. In addition, the centrifuge is provided with a barrel-shaped structure type liquid material storage mechanism.

The invention discloses a rapid blood centrifugal separation and collection device and a control method. The device comprises a base, a driving motor, a blood container, a valve body, a separated object collection container, an annular coil, a photoelectric sensor and a controller. Blood centrifugal layering is achieved through rotation of the driving motor, separation and collection of layered blood are achieved through valve element actions of the annular coil control valve body, whether separation is completed or not is detected through the photoelectric sensor, centrifugation, separation and collection are automatically completed through the device without manual operation, the blood centrifugal separation efficiency is greatly improved, and the labor intensity of workers is reduced. The separation precision is high, and the purity of the separated sample is good.