Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

46results about How to "Reduced chance of poisoning" patented technology

Method for preparing hydrogenated C9 petroleum resin by directional hydrogenation

The invention relates to a method for preparing hydrogenated C9 petroleum resin by directional hydrogenation. The method comprises the following steps: (1) uniformly mixing C9 petroleum resin with a mixing solvent and then removing impurities through a Al2O3 packed bed; (2) conveying a pretreated liquid resin into a one-stage hydrogenation reactor loaded with Ni/Mo/W-Al2O3 catalyst and performing hydrogenation reaction, thereby acquiring a one-stage hydrogenated liquid resin; (3) conveying the one-stage hydrogenated liquid resin into a pressure-stabilizing flash column, thereby acquiring desulfurized liquid resin at the column bottom; (4) uniformly mixing the desulfurized liquid resin with hydrocracking aviation fuel and then feeding into a two-stage hydrogenation reactor, and performing hydrogenation reaction, thereby acquiring two-stage hydrogenated liquid resin; and (5) conveying the two-stage hydrogenated liquid resin into a decompression rectifying column, thereby acquiring the hydrogenated C9 petroleum resin at the column bottom. According to the method provided by the invention, the process is simple and convenient; the hydrogenation cost is low; the middle solvent is basically recycled; the prepared hydrogenated C9 petroleum resin has an excellent performance and a higher industrial value.
Owner:HENGHE MATERIALS & SCI TECH CO LTD

Process for preparing heparin sodium through membrane separation

The invention discloses a process for preparing heparin sodium through membrane separation. The process comprises the steps: intestinal mucosa enzymolysis, ceramic membrane filtration, ion exchange column chromatography, nanofiltraiton membrane concentration, alcohol precipitation and drying, wherein the optimal condition for the intestinal mucosa enzymolysis is formed by the proper proportion of intestinal mucosa to water, enzymolysis temperature and pH value of a system. A protease can take the optimal enzymolysis effect, the structure and activity of heparin are not damaged when the glucosidic bond linked between protein and the heparin is hydrolyzed, meanwhile, fewer low-molecular heparins are generated, the activity of the heparin can be improved by 20%, and the generated low-molecular heparins can be reduced by 10%. Due to the adoption of the ceramic membrane filtration, protein impurities and the heparin in an enzymatic hydrolysate can be effectively separated, so that the heparin loss is greatly reduced and can be reduced by 5-8% as comparison with that of the traditional process, the production cost is reduced, the discharged wastewater can be reduced by 50-60%, the resin utilization ratio can be increased by 40-50%, the consumption of auxiliary materials is low, the quality of the heparin sodium is stable, the process is convenient to operate, and the defects such as high impurity content in the enzymatic hydrolysate, serious waste liquid discharge pollution, high personnel utilization rate and the like are overcome.
Owner:HEBEI CHANGSHAN BIOCHEM PHARMA

Water-cooled seal fuel cell stack

InactiveCN103078125AImprove uniformityWater-cooled cooling effect is goodFuel cells groupingFuel cell auxillariesFuel cellsHydrogen
The invention discloses a water-cooled seal fuel cell stack. The fuel cell stack is encapsulated in a housing, and comprises a plurality of single cells connected in series and stacked; each cell comprises a membrane electrode, a hydrogen plate and an oxygen plate; the hydrogen plate and the oxygen plate are respectively arranged on two sides of the membrane electrode; an anode sealing plate tightly presses one end of the fuel cell stack; a cathode sealing plate tightly presses the other end of the fuel cell stack; a pipe inlet and a pipe outlet are formed in the housing; the pipe inlet is provided with a hydrogen input pipeline and an air input pipeline which are led to the fuel cell stack; hydrogen required by fuel cell stack reaction flows in from a hydrogen pipeline, and oxygen required flows in from an air pipeline; the pipe inlet is provided with a cooling tank led to the fuel cell stack, and a cooling water pipeline for providing cooling water for the fuel cell stack; and a hydrogen output pipeline, an air output pipeline and a cooling water drain pipeline, connected with the fuel cell stack, are connected to the exterior of the housing through a pipe outlet. The fuel cell stack is influenced a little by the environmental temperature, the pollution of air impurities on the membrane electrode can be reduced, the overall uniformity of the fuel cell stack is good, and the service life of the fuel cell stack is prolonged.
Owner:ARCHITECTURAL ENG INST GENERAL LOGISTICS DEPT P L A

Method for making bone-free common Japanese mackerel fillets through cold air drying and impregnating for flavoring

The invention discloses a method for making bone-free common Japanese mackerel fillets through cold air drying and impregnating for flavoring and mainly solves the problems that an existing common Japanese mackerel product does not have fresh taste and tastes bad. The method comprises steps as follows: fresh common Japanese mackerels or thawed frozen fresh common Japanese mackerels are selected as raw materials, after the head is removed, each fish body is sliced along the vertebra, then viscera, belly bone and fishbone are removed, and the common Japanese mackerel fillets are prepared from the fish body through cutting; the common Japanese mackerel fillets are cleaned up and soaked in salt and sugar water for reduction of histamine, then the common Japanese mackerel fillets are taken out, subjected to surface salt and sugar removing and placed in clear water for ultrahigh pressure processing and then are impregnated in a flavoring liquid for impregnating and flavoring, and after low-temperature fermentation, cold air drying, anti-freezing impregnation processing, electron-beam cold sterilization, quick-freezing, packaging and detection of qualification, the bone-free common Japanese mackerel fillets are obtained. The making method has the advantages of reasonable technology, high operability and high making efficiency; the common Japanese mackerel fillets made with the method taste mellow and delicious, are free of fishy smell, and have palatable sweet and salty taste, unique flavor, abundant nutrition and long guarantee period.
Owner:HENGMAO IND GRP

Making method of quick-frozen seasoned pacific saury

The invention discloses a making method of quick-frozen seasoned pacific saury. The method mainly solves the problems of no fresh taste and poor mouthfeel of existing canned pacific saury products and short shelf life of frozen fresh fish segments. The making method includes: selecting frozen and brine thawed fresh pacific saury as the raw material, conducting scaling, decapitating, viscus removing and washing to obtain pacific saury strips; soaking the pacific saury strips in salt sugar water to reduce histamine, washing off the salt sugar on the strip surfaces, then putting the pacific saury strips in clear water to conduct ultrahigh pressure treatment, then dipping the pacific saury strips into seasoning liquid in order to be tasty, then putting the pacific saury strips into a mycose antifreeze solution to conduct antifreeze dipping treatment, draining the antifreeze solution from the surfaces of the pacific saury strips, then carrying out electron beam cold sterilization, quick-freezing, packaging and inspection to be qualified. The making method provided by the invention has the characteristics of reasonable process and strong operability. The made pacific saury not only has the characteristics of safety and sanitation, and long shelf life, but also has bright color, mellow taste, palatable sweet and salty taste, and unique flavor.
Owner:HENGMAO IND GRP

Galvanized steel wire galvanizing device

The invention relates to the field of galvanizing, and particularly relates to a galvanized steel wire galvanizing device. The galvanized steel wire galvanizing device comprises a galvanizing tank, wherein a pair of guide rollers is mounted on the galvanizing tank, a galvanizing solution tank is dug in the galvanizing tank, a pair of limiting rollers are rotatably connected in the galvanizing solution tank, and steel wires are connected between the guide rollers and the limiting rollers; and an automatic heat preservation scraping mechanism is arranged in the galvanizing solution tank, arranged on the upper sides of the limiting rollers and comprises a cover plate. According to the galvanized steel wire galvanizing device, by arranging the corresponding mechanisms on the galvanizing tank,the solidification speed of a surface layer galvanizing solution is greatly decreased, an operator does not need to frequently conduct scraping work, meanwhile, the hands of the operator are liberated, the operator does not need to manually scrape the galvanizing solution solidified on the inner surface layer of the galvanizing tank, the whole device can be automatically removed, the safety of theoperator is greatly improved, meanwhile, the scraping efficiency is improved, the steel wire galvanizing effect is greatly improved, and the situation that the steel wires are affected by the solidified galvanizing solution is avoided.
Owner:ANHUI HUITENG INTELLIGENT TRANSPORTATION TECH CO LTD

Fe-modified nano manganese oxide/MIL-125 (Ti) catalyst and preparation method thereof

The invention belongs to the technical field of composite material preparation, and particularly relates to a Fe-modified nano manganese oxide / MIL-125 (Ti) catalyst and a preparation method thereof. The preparation method comprises the following steps: A, ultrasonically mixing MnSO4, NaClO3 and NaCl in deionized water; adding ferric trichloride hexahydrate for ultrasonic treatment; then dropwise adding concentrated sulfuric acid into the solution under the condition of ice bath stirring, and reacting in a reaction kettle; B, centrifugally washing the precipitate with absolute ethyl alcohol anddeionized water, drying, grinding, and calcining in a muffle furnace to obtain iron modified nano MnOx; C, after DMSO and C3H8O are mixed, adding 1, 3, 5-BTC and nano MnOx for ultrasonic treatment, and then dropwise adding C12H28O4Ti during stirring at the room temperature; putting the solution into a reaction kettle to react; and finally, centrifugally washing with isopropanol and water, and freeze-drying to obtain the composite catalyst. The composite catalyst provided by the invention can effectively reduce the conversion temperature of nitrogen oxides, improve the toxicity resistance andprolong the service life of the catalyst.
Owner:ZHEJIANG ZHIYUAN ENVIRONMENTAL TECH CO LTD

Convenient pesticide spraying device for planting of grapes

The invention discloses a convenient pesticide spraying device for planting of grapes. The device comprises a baseplate, a stirring device, a water pumping device and a driving device. A groove is formed in the left side of the upper surface of the baseplate, and the lower surface of the inner wall of the groove is fixedly connected to the lower surface of a pesticide box; the left side of the upper surface of the pesticide box is clamped to a feeding port, and the stirring device is clamped to the middle of the upper surface of the pesticide box; the bottom of the stirring device is located in the pesticide box, and a fixing frame is fixedly and separately connected to the left and right sides of the part, on the upper surface of the pesticide box, of the stirring device. According to theconvenient pesticide spraying device for planting of the grapes, through arrangement of a placement plate, a second motor, a first gear, a second gear, a second rotating shaft, a spraying head, a third motor, a gear disc and a gear rod, people can push the device for spraying pesticide on the grapes, so that the labor intensity of people is reduced, the poisoned probability of people is decreased, more inconvenience is avoided for people, and the work efficiency of people is improved.
Owner:徐州佳昶农业科技股份有限公司

Vertebral body internal expansion device based on three-column fixation, implantation sleeve and implantation method

PendingCN111449745AImprove stabilityReduce the incidence of surgical failureOsteosynthesis devicesDevice implantOuter Cannula
The invention discloses a vertebral body internal expansion device based on three-column fixation, an implantation sleeve and an implantation method. An elongated implant (1) with a hollow middle anda hollow screw (2) form an integrated or separated expansion device, the implantation sleeve (3) comprises an outer sleeve (31) and an inner rod (32), the inner rod (32) can move in the outer sleeve (31), and an external thread (321) is arranged at one end of the inner rod (32), an integrated vertebral body internal expansion device or a separated assembly type vertebral body internal expansion device can be implanted into target area in a vertebral body through an established working channel (4) by means of the implantation sleeve (3), and the distance between a front end and a proximal end of the implant (1) is shortened through the acting force between the outer sleeve (31) and the inner rod (32); the middle part of the implant (1) is expanded to have a certain supporting force, so thatimmediate mechanical support in an operation is realized; and three-column fixation is realized through the implant (1) and the screw (2), so that the stability of the expansion device in the vertebral body is further enhanced.
Owner:FIRST PEOPLES HOSPITAL OF YUNNAN PROVINCE +2

Anti-poison safety helmet with real-time monitoring function

The invention relates to the technical field of gas defense safety helmets and particularly relates to a gas defense safety helmet with a real-time monitoring function. The safety helmet is characterized in that the safety helmet comprises an environment detection module which is used for detecting the current environment in real time and acquiring the information data of the current environment; a vital sign detection module which is used for detecting and acquiring vital signs of a person wearing the gas defense safety helmet in real time and acquiring life body information data of the person wearing the gas defense safety helmet; and a central processing chip which is used for acquiring the environment information data sent by the environment detection module and acquiring life information data sent by the vital sign detection module and performs data interaction with a terminal system, sends current detection data to the terminal system for display and receives the instruction information sent by the terminal system. The anti-poison safety helmet has the effects of evaluating the risk degree of the working environment and monitoring vital signs of constructors, the poisoning probability of the constructors can be reduced, and rescue efficiency of the constructors after an accident occurs is improved.
Owner:JILIN JIANZHU UNIVERSITY

Rice production operation platform and operation method based on intelligent agricultural technology

The invention discloses a rice production operation platform and operation method based on an intelligent agricultural technology. The rice production operation platform comprises a blockchain technology platform, the blockchain technology platform is connected with a breeding processing unit, an unmanned aerial vehicle, an intelligent agricultural machine, a rice processing unit and a field management unit. The blockchain technology platform is also connected with a trusteeship platform, a customization platform, a traditional channel wholesale platform, an e-commerce direct sale platform andan achievement allocation platform. Individuals and collections are connected in the trusteeship through a protocol, the traditional channel wholesale and e-commerce direct sale platform are connected with clients, and product data sources are connected through the clients.. According to the invention, through the technical applications of the big data platform, the unmanned aerial vehicle application technology, the intelligent agricultural machine technology and the like, the standardized management and large-scale operation service of rice production are realized in combination with the data transmission and recording of the operation process, and the product plastic source is facilitated.
Owner:广州思谋信息科技有限公司

Visual monitoring system and method for harmful gas in animal house based on terahertz spectroscopy

PendingCN108051390AAlarm is accurate and real-timeAlarms are implemented accurately and in real timeMaterial analysis by optical meansVisual monitoringSpectroscopy
The invention provides a visual monitoring system and method for harmful gas in an animal house based on a terahertz spectroscopy. The harmful gas visual monitoring system comprises a terahertz spectroscopy detection device and a harmful gas detection tank which are fixedly arranged, an air sampling device which is arranged in the target animal house, computer equipment which is in communication connection with the terahertz spectroscopy detection device, and visual alarming equipment which is in communication connection with the computer equipment, wherein the air sampling device is communicated with the harmful gas detection tank; the terahertz spectroscopy detection device is used for carrying out terahertz spectroscopy detection on each harmful gas in the air in the harmful gas detection tank, sending a detection result into the computer equipment and controlling the visual alarming equipment to carry out alarming according to types of the harmful gas with exceeding content. According to the visual monitoring system and method, provided by the invention, detection, advanced early warning and visual alarming of the harmful gas can be accurately realized in real time, and the timeliness and the safety of detection are improved, so that influences, caused by the harmful gas, on livestock are effectively reduced.
Owner:BEIJING RES CENT FOR INFORMATION TECH & AGRI

A method for preparing hydrogenated C9 petroleum resin by directional hydrogenation

ActiveCN106832127BGood activity in catalytic hydrogenation of aromaticsImprove qualityHydrogenation reactionPetroleum resin
The invention relates to a method for preparing hydrogenated C9 petroleum resin by directional hydrogenation. The method comprises the following steps: (1) uniformly mixing C9 petroleum resin with a mixing solvent and then removing impurities through a Al2O3 packed bed; (2) conveying a pretreated liquid resin into a one-stage hydrogenation reactor loaded with Ni / Mo / W-Al2O3 catalyst and performing hydrogenation reaction, thereby acquiring a one-stage hydrogenated liquid resin; (3) conveying the one-stage hydrogenated liquid resin into a pressure-stabilizing flash column, thereby acquiring desulfurized liquid resin at the column bottom; (4) uniformly mixing the desulfurized liquid resin with hydrocracking aviation fuel and then feeding into a two-stage hydrogenation reactor, and performing hydrogenation reaction, thereby acquiring two-stage hydrogenated liquid resin; and (5) conveying the two-stage hydrogenated liquid resin into a decompression rectifying column, thereby acquiring the hydrogenated C9 petroleum resin at the column bottom. According to the method provided by the invention, the process is simple and convenient; the hydrogenation cost is low; the middle solvent is basically recycled; the prepared hydrogenated C9 petroleum resin has an excellent performance and a higher industrial value.
Owner:HENGHE MATERIALS & SCI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products