34 results about "Flash freezing" patented technology

The present invention is directed to the method and apparatus for the robotic harvesting of solids from liquids as exemplified by harvesting protein crystals. Further, the present invention is directed to a fluid/solid management system in a chamber that automates the task of solid harvesting. The fluid/solid management system includes two supporting structures for at least one pipette on one structure and a second pipette on the other structure, the two pipettes in tip-to-tip alignment. The pipettes each having a drop of liquid at the end thereof are moved apart to form a liquid bridge in which the solid crystal is isolated. A robotic arm has a device on the end thereof for the harvesting of the solid at the working point between the tips of the pipettes. The system has a flash freezing system in the chamber for the safe storage of the harvested solid.

The invention relates to a FeGa-RE magnetostrictive material and manufacturing technique. The characteristics of magnetostrictive material are that: the ingredient of material consists of Fe, Ga and RE, the content of Ga is 10-40at%, the content of RE is 0.01-20at%, the content of additional intermingle is: C=200-600ppm,N=200-600ppm,O=200-700ppm,other is Fe, the optimal value of Ga is 12-28at%, FeGa-RE magnetostrictive material, the ingredient of material adds one or more kinds of La, Ce, Pr, Nd, Tb, Dy whose content is 0.01-20at%. The manufacturing technique includes the alloy with purified material is cast as the needed round bar, and the alloy bar is crystallized by high temperature gradient flash freezing method and Bridgman method.

The invention relates to a making method of low-sugar blackberry jam in the jam process technological field, which is characterized by the following: choosing flash-freezing or fresh blackberry with good color and flavor and high sugar acidity as raw material; choosing natural food additives; using modern process technique and unique dispense prescriptions; making the blackberry jam with low sugar content, beautiful in color and sour-sweet taste; having more dense scent of raspberry with stable quality. The invention has the merits of (1) the dispense prescriptions is formed through researching over many years and fits the needs of food with low sugar and high pulp content and mellowing taste for modern people, and (2) the invention utilizes the methods of vacuum concentration, homogeneity and degassing to reserve nutrient in high limit and retains the natural flavor of the blackberry and stability of the product.

The invention discloses a method for rapidly extracting DNA (Desoxvribose Nucleic Acid) of a plant genome with a high flux. The method comprises the following steps: respectively putting plant materials to be extracted in hole plates 96; then putting a steel ball in each hole and performing liquid nitrogen flash freezing on each hole; fully grinding the plant materials to be extracted in the hole plates 96 by virtue of a crusher; and finally, extracting the DNA from the grinding powder via an improved NaOH, CTAB (Cetyltrimethyl Ammonium Bromide) or SDS (Sodium Dodecyl Sulfate) method, wherein various reagents are all added by utilizing channels 96 of a Zephyr MBW nucleic acid workstation during the DNA extracting process. The method has the advantages of high flux, low cost, rapid speed and the like. In addition, the extraction method is simple; and the obtained DNA of the plant genome is high purity and good in stability.

An apparatus and method of flash freezing a coffee-based liquid into small beads and then packaging the beads for consumers is disclosed. The beads are stored in a conventional freezer until desired and then reconstituted into a coffee beverage base as needed. In particular, a cold coffee-based beverage may be easily and affordably created using the frozen beads.

A method and apparatus for enhanced oil recovery comprising separating CO₂ gas from coal or flue emissions of a power plant, and flash freezing the CO₂ gas with super chilled air, to form frozen CO₂ ice blocks or cylinders, wherein the CO₂ blocks or cylinders can then be inserted into an abandoned oil well, and the CO₂ can be allowed to warm up and change phase to a gas, which enables the CO₂ gas to mix with the oil, and helps reduce the viscosity of the oil and allows it to flow more freely, so that it can be pumped out using conventional equipment. A first application comprises having top and bottom valves and the CO₂ blocks or cylinders being allowed to change phase to a gas while inside the injection pipe, to increase the pressure therein, such that, by opening the bottom valve, pressurized jets of CO₂ gas can be released into the oil, causing the oil to mix vigorously with the carbon dioxide gas, and reduce the viscosity thereof. A second application comprises allowing the CO₂ cylinders or blocks to drop into the oil itself, wherein the relatively warm oil causes the frozen CO₂ to change phase to a gas, which causes violent gas bubbles to form that vigorously mix with the oil, which helps reduce the viscosity of the oil so it flows more freely through the reservoir.

The invention relates to a lithium-sulfur battery technology, and aims to provide a preparation method and application of modified thin-wall hierarchical porous carbon for a lithium-sulfur battery. According to the invention, sodium chloride is taken as a template, water-soluble transition metal salt is taken as a modifier, water-soluble glucose thiourea resin is taken as a carbon source, and themodified thin-wall porous carbon forming nano sulfide on a carbon wall is obtained through freeze drying, calcination and water washing through flash freezing of a mixed solution, coordinated with transition metal, of a glucose thiourea prepolymer and sodium chloride. The modified thin-wall hierarchical porous carbon has the characteristics of large specific surface area and large pore volume, andcan bear more metal lithium. The thin wall endows the hierarchical porous carbon with pore deformation capability and high strength, so the capability of bearing puncture of lithium dendrites is improved. Gas is used to passivate the surface of metal lithium, thereby facilitating improving of the production efficiency and improving of the passivation effects and consistency. The dispersed sulfidehas strong affinity to polysulfide ions, is beneficial to adsorption of the polysulfide ions and inhibition of shuttling of the polysulfide ions, and is suitable for preparation of a high-performancesulfur electrode material.

An apparatus and method of flash freezing a tea-based liquid into small beads and then packaging the beads for consumers is disclosed. The beads are stored in a conventional freezer until desired and then reconstituted into a tea beverage base as needed. In particular, a warm or cold tea-based beverage may be easily and affordably created using the frozen beads.

The invention discloses a preparation method of high-viscosity modified attapulgite, relates to the technical field of attapulgite processing, and comprises the following steps: (1), selecting natural attapulgite ore as a raw material and pulverizing to obtain natural attapulgite powder; 2), configuring the attapulgite suspension; (3), adding an acid solution with a concentration of 5-10% to the attapulgite suspension obtained in step (2) to obtain a semi-finished product of modified attapulgite powder; (4), The modified attapulgite powder semi-finished product is extruded into the cold storage through an extruder to obtain the modified attapulgite powder; (5) Blow hot air into the finished modified attapulgite powder, and then spray it into the churning powder Thickener and viscosifier, high viscosity modified attapulgite is prepared by spray drying. The invention uses attapulgite powder as a raw material, has low production cost and high efficiency, and the obtained high-viscosity modified attapulgite has high bonding strength and good durability.

The invention relates to a novel medicament for treating the cardio-cerebrovascular diseases and a preparation method and belongs to the technical field of preparation of the novel medicament for treating the cardio-cerebrovascular diseases. According to the invention, blood-sucking leeches, panax pseudoginseng and earthworm are used as raw materials. According to the invention, by a special preparation process of carrying out liquid nitrogen flash freezing, low-temperature superfine grinding and freeze drying before sterilization on the raw materials, the grinding fineness can reach 1 to 10 micrometers, the active ingredients of the blood-sucking leeches can be stored to the greatest extent, the active ingredients can be sufficiently adsorbed by a patient, and the novel medicament has comprehensive effects of promoting circulation, removing stasis, resisting to coagulation, reducing the pressure, lowering lipid, resisting to platelet aggregation and dissolving thrombi and is safe and reliable to take. The invention solves the problems that an existing medicament which uses leeches as the raw materials and is used for treating the cardio-cerebrovascular diseases adopts non blood-sucking leeches as the medicine and adopts a conventional grinding method, so that the antithrombase effect is poor and the curative effect is influenced; and enteric capsules only adopt the single medicine of blood-sucking leech and have poor effects of reducing the pressure, lowering the lipid and dissolving the thrombi and the preparation process ensures the active ingredients of the leeches not to be completely stored and is unbeneficial for a patient to adsorb the active ingredients.

The invention discloses a processing method of frozen cooked clear-water hairy crabs and belongs to the technical field of aquatic product processing and preservation. According to the invention, the frozen cooked clean-water full-body hairy crab products are prepared by adopting fresh and live hairy crabs as raw materials through the steps of performing selection, performing rinsing, performing cooking, performing cooling, performing grading, performing measuring, performing placing onto dishes, performing soup juice addition, performing vacuum packaging, performing quick-freezing, performing metal detection, performing outer packaging and performing refrigeration. According to the invention, the effects are as follows: the originally contained flavors and nutrients of the hairy crabs are effectively retained through high-temperature fast cooking and a liquid-nitrogen flash freezing technology; the limits of regions and seasons are eliminated; and a sales radius is expanded.

A method for processing food using a tray having a plurality of substantially similarly-sized compartments. The method includes at least partially filling at least two of the plurality of substantially similarly-sized tray compartments with an organic food, and flash-freezing the organic food within the plurality of substantially similarly-sized tray compartments.

An apparatus and method of flash freezing a coffee-based liquid into small beads and then packaging the beads for consumers is disclosed. The beads are stored in a conventional freezer until desired and then reconstituted into a coffee beverage base as needed. In particular, a warm coffee-based beverage may be easily and affordably created using the frozen beads.

The invention relates to the technical field of sodium-sulfur batteries, and aims to provide a preparation method of polypyrrole quantum dots and a sodium-sulfur battery diaphragm. The preparation method comprises the following steps: adding a pyrrole solution and the DMSO solution of ferric nitrate into a solvent thermal reaction kettle together, and uniformly stirring; carrying out solvothermalreaction at the temperature of 180 DEG C for 0.5-5 h and cooling to the room temperature to obtain a DMSO solution containing the polypyrrole quantum dots. According to the preparation method, the high strength and high heat resistance temperature characteristics of PBO resin are utilized, so that the safety and reliability of a sodium-sulfur battery are greatly improved by taking the diaphragm asa raw material. Directional branch-shaped pore channels are obtained through flash freezing pore-forming, and sodium ion transmission is facilitated. The polypyrrole quantum dots are beneficial to long-chain polysulfide adsorption, the polysulfide adsorption capacity of the diaphragm is improved, a medium polysulfide concentration gradient is established in the diaphragm, the content of sodium ions is increased, the internal impedance of the sodium-sulfur battery is reduced, growth of sodium dendrites is passivated so as to prevent the sodium dendrites from penetrating through the diaphragm,the possibility that the sodium dendrites are in contact with the positive electrode in a charging and discharging process is eliminated, and short-circuiting of the battery is prevented.

The invention discloses a quick-frozen mango fruit product and a preparation method thereof. The preparation method comprises the following steps of (1) selecting raw materials: selecting 70%-80% ripened yellow-skin mangoes which are plump in fruits, thick in flesh quality, free from stains and scars, and free from insect damages; (2) performing washing: performing washing by clean water, removingbacteria and other impurities on outer skin of the selected mangoes, and performing airing; (3) performing bacterium removal: performing physical bacterium removal by high-pressure ion flow sterilization equipment, and performing airing; (4) performing skin removal and kernel separation: removing mango fruit tips (mango fruit tails) and mango fruit heads (mango fruit stems: the taste of the mangofruit stems is astringent, and the mango fruit stems are sensitive areas), performing skin removal under the low-temperature condition by mechanical equipment, and performing kernel separation underthe low-temperature condition by the mechanical equipment, so as to obtain chopped mango flesh; (5) performing pulping, performing homogenizing and performing deoxidizing: making the obtained choppedmango flesh into mango pulp by a pulping machine, performing homogenizing treatment under the low-temperature condition, performing deoxidizing treatment under the low-temperature condition, and performing standing; (6) performing flash freezing and quick freezing: performing flash freezing and quick freezing on the sterilized mango fruit product under minus 60-minus 80 DEG C by liquid nitrogen for shaping;, and (7) performing low-temperature storing: quickly transferring the quick-frozen mango fruit product to a cold storage storeroom of which the temperature is minus 25-minus 35 DEG C, so asto obtain the finished products. Through the adoption of the preparation method disclosed by the invention, the quick-frozen mango fruit product is mushy and soft in mouth feel, pure in flavor and bright yellow in color.

The invention discloses an aquatic product low-temperature refrigeration device and method. The device comprises a flash-freezing solution, a refrigeration pool, an ultrasonic-assisted refrigeration system, a quick start module, a refrigeration unit and a hoisting machine, wherein the whole refrigeration pool has an annular shape, one half of the refrigeration pool is a pre-cooling pool, and the other half of the refrigeration pool is a freezing pool; the ultrasonic-assisted refrigeration system comprises an ultrasonic generator and an ultrasonic transducer; the refrigeration unit comprises asingle-stage compression-type refrigerator and a cascade refrigerator, and an evaporator pipeline of the single-stage compression-type refrigerator is arranged on the outer wall of the pre-cooling pool; and an evaporator pipeline of the cascade refrigerator is arranged on the outer wall of the freezing pool. According to the device, cold energy can be sufficiently recycled and utilized, so that the starting time and starting energy consumption of the refrigeration device can be greatly reduced; low-frequency ultrasonic intermittent working assisted refrigeration is adopted, the super-cooling degree of cell tissues of an aquatic product can be reduced, generation of large ice crystals in the cell tissues of the aquatic product can be inhibited, the structure of the cell tissues of the aquatic product can be protected, and the aquatic product can be quickly frozen with high quality.

The invention discloses a polystyrene nano zero-valent iron composite material and a preparation method and application thereof and belongs to the field of organic macromolecular material synthesis. According to the composite material, a liquid-phase reduction method is adopted, nano zero-valent iron is loaded into porous polystyrene pellets obtained by means of a flash freezing method, polystyrene is firstly dissolved in a certain quantity of an organic solvent to obtain a polystyrene solution, and then the polystyrene solution is dropwise added into liquid nitrogen containing another solid organic solvent; liquid nitrogen slowly volatilizes, the solvent slowly melts along with the temperature rise of a system, an organic solvent in original polystyrene is replaced to obtain the porous polystyrene pellets, and the porous polystyrene pellets are soaked in a high-concentration iron-containing solution and then taken out to be soaked in a methanol solution of sodium borohydride; by repeating the operation above several times, the polystyrene nano zero-valent iron composite material is obtained. The material prepared by the method has the advantages of high stability and activity, great separation capacity in water, excellent catalytic degradation performance on water pollutants, high in mechanical strength, environmentally friendly and the like.

The invention provides an LC-MS/MS method for detecting IPP, GPP, FPP and GGPP in a fresh tobacco leaf. The LC-MS/MS method comprises the following steps: 1) preparing an extraction solvent; 2) conducting liquid nitrogen flash freezing on the fresh tobacco leaf, and conducting freeze drying and crushing; 3) adding the extraction solvent to the crushed sample, and conducting ultrasonic extraction at low temperature; 4) carrying out refrigerated centrifugation, taking supernatant, and filtering; 5) conducting LC-MS/MS method to detect IPP, GPP, FPP and GGPP in the detected sample. The LC-MS/MS method has the advantages that the pretreatment method of the sample is simple and only comprises ultrasonic extraction and filtration; compared with the existing method, the method is high in sensitivity, good in precision, and high in recovery of standard addition; the sample can be directly fed and analyzed through filtration, but according to the methods in the existing documents, the pretreatment method is complicated and time-consuming, and requires pyrophosphatase and alkaline phosphatase for carrying out biochemical reaction on the sample. Therefore, the LC-MS/MS method disclosed by the invention can effectively increase the analysis efficiency, and is suitable for analysis of the ultralow content target in the complex substrate.

The invention discloses a method for extracting a lily flavonoid compound. The method comprises the following steps of: mixing inner and outer petals of lily, and grinding a mixture by liquid nitrogen flash freezing into lily petal powder; placing the lily petal powder added with an ethanol solution in a gas-bath constant-temperature oscillator to be extracted to obtain an extract; centrifuging the extract to remove a precipitate by using a high-speed centrifuge so as to obtain a supernatant; concentrating the supernatant on a rotary evaporator to remove a solvent, and placing in a vacuum freeze drier to freeze to dryness to give a lily flavonoid extract. The extraction process of the lily flavonoid compound is studied to provide a reference for further study on free radical scavenging ability of the lily flavonoid compound. The process is simple and feasible, and has a better reference value.

The invention discloses a liquid cooling flash-freezing device and method for fresh keeping of meat products. The liquid cooling flash-freezing device comprises a low-temperature flash-freezing liquid circulating pond, a microwave-assisted freezing device, a controller and low-temperature flash freezing liquid circulated in the low-temperature flash freezing liquid circulating pond, wherein the low-temperature flash freezing liquid circulating pool comprises a precooling pond and a flash freezing pond, the precooling pond and the flash freezing pond are connected through circulating pump pipes to form a circulating system; the microwave-assisted freezing device is provided with magnetrons and a microwave resonance cavity, wherein the magnetrons are mounted on a mounting plate and connected with the controller; the microwave resonance cavity is connected with the magnetrons; the low-temperature flash freezing liquid mainly consists of the following substances in percentage by mass: 15-20% of sodium chloride, 15-20% of ethanol, 5-10% of glucan, and the balance of distilled water. According to the low-temperature flash freezing device for the meat products, the flash freezing liquid and the flash freezing device are in cooperating operation, so that the condition that nutrients of frozen meat products run off under the condition that the frozen meat products are stored for a long term can be reduced, and the suitable targets comprise the meat products including common pork, beef, mutton and the like.

A production method of preserved flash-frozen slim fish slices or fillets comprises the steps of (1) dividing slim fishes, to be specific, dividing caught slim fishes within 2 h, and removing bones toobtain slim fish meat; (2) cutting to obtain fish slices or fillets, to be specific, cutting the slim fish meat of step (1) into small fish slices or fillets, and removing bones from the slices or fillets; (3) flash freezing, to be specific, placing the fish slices or fillets of step (2) into a flash freezer such that center temperature of the fish slices or fillets drops to -30 DEG C and below within 60 seconds; (4) refrigerating, to be specific, packaging the fish slices or fillets of step (3) in vacuum, and storing in a freezer at -20 DEG C and below. The slim fish slices or fillets produced via the production method retains original fresh taste and nutrition of slim fishes, have good taste after being cooked, and are especially convenient for young children and old people to eat as nobones are present in the fish slices or fillets.

The invention relates to the technical field of sodium batteries, and aims to provide a preparation method of a low-temperature sodium-sulfur battery diaphragm and a low-temperature sodium-sulfur battery. The preparation method comprises the following steps: adding a dendritic microporous PBO diaphragm modified by carbon quantum dots into a poly-sodium sulfide solution; and dipping for 12 hours at 50 DEG C, and carrying out THF washing and drying to obtain the low-temperature sodium-sulfur battery diaphragm treated by the poly-sodium sulfide. According to the invention, high strength and high heat-resistant temperature characteristics of the PBO resin are utilized, and the safety and reliability of the sodium-sulfur battery are greatly improved through the diaphragm with the PBO resin as the raw material. Directional dendritic pore channels are obtained through flash freezing pore forming, so that sodium ion transfer is facilitated. Carbon quantum dots on the walls of the dendritic PBO micropores are beneficial to adsorption of long-chain polysulfide, the adsorption capacity of polysulfide is improved, the concentration gradient of polysulfide is established in the membrane, the content of sodium ions is increased, the internal impedance of the sodium-sulfur battery is reduced, growth of sodium dendrites is passivated so the sodium dendrites are prevented from passing through the diaphragm, the possibility of contact between the sodium dendrites and a positive electrode in the charging and discharging process is eliminated, and short circuit of the battery is prevented.

The invention discloses a screw loosening agent, which comprises the following components in part by weight: 60 to 80 parts of hydrocarbon refrigerant, 10 to 25 parts of hydrocarbon solvent oil, 3 to 5 parts of synthetic ester and 5 to 10 parts of sulfonate rust inhibitor, wherein the hydrocarbon refrigerant is R-433b or tetrafluoroethane HFC-R134a or a mixture of the R-433b and tetrafluoroethaneHFC-R134a; the hydrocarbon solvent oil is one or a mixture of C10 to C16 alkane; the synthetic ester is trimethylolpropane; and the sulfonate rust inhibitor is sulfonate. In the invention, according to the principle of expansion and contraction, a fastener which is rusted and cannot be loosened is subjected to flash freezing in a detachment process to make a required gap between structural members bonded into a whole due to rust corrosion, so that the solvent oil, synthetic ester, sulfonate and the like, which are sprayed out together with the refrigerant, can permeate into the gap for derusting and lubricating; and thus, both the fastener and the structural members get necessary repair and the loosening of the screw is realized naturally.

The invention provides a full-automatic feeding and discharging mechanism for freeze-drying tablet production equipment. The full-automatic feeding and discharging mechanism comprises a conveying chain board device and an automatic feeding and discharging device. The start end of the conveying chain board device is connected with a liquid nitrogen flash freezing forming machine and a film coating packaging machine is arranged at the tail end of the conveying chain board device. A freeze-drying machine is arranged on one side of the conveying chain board device and the automatic feeding and discharging device is arranged on the other side of the conveying chain board device. The conveying chain board device comprises a conveying chain board and a variable-frequency motor is connected with the conveying chain board. The automatic feeding and discharging device comprises an automatic feeding and discharging guide rail, an inserting and conveying rack is arranged on the automatic feeding and discharging guide rail and connected with a drive device, and an inserting frame is arranged at the end of the inserting and conveying rack and connected with an inserting frame drive assembly. The automatic feeding and discharging guide rail is connected with the side face of the tail end of the conveying chain board. The full-automatic feeding and discharging mechanism is simple in structure, freeze-drying tablets are fed and discharged automatically in an unmanned manner, it is guaranteed that the whole bubble cap transfer process is rapid and efficient, the labor cost is reduced, and meanwhile the influences caused by human intervention on air and medicine in a clean room are reduced.