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1348results about How to "Guaranteed separation effect" patented technology
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Toilet with function of urine separation
InactiveCN105484336AEasy to separateGuaranteed separation effectUrinalsLavatory sanitorySewageEngineering
The invention discloses a toilet with a function of urine separation. The toilet comprises a toilet body and a urinal. A water pipe for flushing the urinal is arranged at the top of the toile body, a delay infrared induction sensor for controlling the water pipe to close is arranged at the top of the urinal, and the bottom of the urinal is provided with a filter screen. The toilet is characterized in that a sewage pipe a corresponding to the filter screen and a urine separation device connected with the sewage pipe are connected to the bottom of the urinal, a water drain pipe is connected to the bottom of the urine separation device, and a sewage hose a is connected to one end of the urine separation device. The toilet with the function of urine separation is simple in structure and convenient to use, complete urine separation can be realized, and accordingly the problem of incompleteness in urine separation is avoided.
Owner:刁淑红 +1
Downhole gas-liquid separation device and working method thereof
ActiveCN105536299AReduce in quantitySimple structureLiquid degasificationSeparation devicesEngineeringProduct gas
A downhole gas-liquid separation device comprises a barrel-shaped body, and a positioning wheel is fixedly installed in the body. A rotatable swirling wheel is installed on the positioning wheel and provided with spiral wheel blades, and the positioning wheel is provided with fluid channels. A lower connector is connected to the body, a diverting joint is arranged at the inner end, located in an inner cavity of the body, of the lower connector, a gas outlet channel is formed in the center of the diverting joint in a coaxial mode, and the outer side of the diverting joint is provided with liquid drainage channels. An interval is formed between the swirling wheel and the diverting joint. The downhole gas-liquid separation device is small in part number, simple in structure and lower in cost; the swirling wheel is driven to rotate when liquid passes through the swirling wheel to enable the liquid to generate centrifugal force and swirlingly flow in the inner cavity in the mode of being attached to the wall, the liquid in gas is gathered to the center, and then the liquid and the gas flow out through the liquid drainage channels formed in the outer side and the gas outlet channel formed in the center respectively, so that gas and liquid separation is achieved; accordingly, the liquid sent to a motor does not contain the gas, damage to the motor is avoided, and the service life of the motor is prolonged.
Owner:JEREH ENERGY SERVICES
Federated learning information processing method and system, storage medium, program and terminal
ActiveCN111611610ARealize identity anonymityGuaranteed separation effectDigital data protectionNeural architecturesInformation processingData privacy protection
The invention belongs to the technical field of wireless communication networks, and discloses a federated learning information processing method and system, a storage medium, a program, and a terminal. A parameter serve confirms a training task and an initial parameter and initialize a global model. The parameter server randomly selects part of participants to issue model parameters, encrypts themodel parameters and forwards the model parameters through the proxy server; the participants receive part of parameters of the model and cover the local model, and the model is optimized by using local data; the participant calculates a model gradient according to an optimization result, selects a part of the model gradient for uploading, adds noise to the uploading gradient to realize differential privacy, encrypts the uploading gradient and forwards the uploading gradient through the proxy server; the parameter server receives the gradients of all participants, and integrates and updates the global model; and the issuing-training-updating process of the model is repeated until an expected loss function is achieved. According to the invention, data privacy protection is realized; the communication overhead of a parameter server is reduced, and anonymity of participants is realized.
Owner:XIDIAN UNIV
Three-phase separation and waste water purification standard treatment device of kitchen waste including 'waste oil' and solid waste and kitchen waste water
InactiveCN103159362AEfficient separationIncrease temperatureFatty oils/acids recovery from wasteFatty/oily/floating substances removal devicesNumerical controlWater quality
The invention discloses a three-phase separation and waste water purification standard treatment device of kitchen waste including 'waste oil', solid waste and kitchen waste water. The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water is mainly composed of a shell body, a solid-liquid separation chamber, a filtering bag with meshes, a liquid level displayer, an oil-water interface detector, a numerical control electric valve which discharges the 'waste oil', a flowmeter of the 'waste oil', a collection tank of the 'waste oil', a blower, an air heating device, a filtering tank, a drug adding tank and the like. According to the three-phase separation and waste water purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water, oil and water separation and waste water purification are carried out in the same device, an equipment structure is simplified, the water quality after being purified is in line with each indicator of 'water quality standard of sewage discharged into the city sewer' (CJ3082-1999), The three-phase separation and waste purification standard treatment device of the kitchen waste including the 'waste oil', the solid waste and the kitchen waste water has the advantages that the size is small, the investment is low, either manual or automatic operation is available and the like, and obvious creativity, novelty and good industrial applicability are provided.
Owner:周鼎力
Semiconductor device and fabrication method thereof
InactiveUS20060175686A1Efficient removalAvoid surface degradationSemiconductor/solid-state device detailsSolid-state devicesDielectricOxygen
A semiconductor device fabrication method comprises the steps of: (a) forming a pad electrode on the semiconductor device; (b) coating the surface of the semiconductor device with an organic dielectric film so as to expose the center portion of the pad electrode; (c) treating the exposed surface of the pad electrode by dry etching; and (d) removing an altered layer produced in the organic dielectric film due to the dry etching for the surface treatment, using an oxygen-free dry process.
Owner:FUJITSU MICROELECTRONICS LTD
Multi-dimension labelling and model optimization method for audio and video
InactiveCN108806668ARealize closed-loop operationImprove compatibilitySpeech recognitionImaging analysisVideo content analysis
The invention discloses a multi-dimension labelling and model optimization method for audio and video. The method specifically comprises the following steps: first, carrying out sample management andsorting, carrying out de-duplication aiming at sample data of an input system, carrying out numbering, and establishing a sample labelling task library; at the preprocessing stage of audio data, carrying out audio extraction on video data of the task library, and completing the preprocessing operation for the audio data; at the audio content analysis and feature extraction stage, after the audio preprocessing is completed, carrying out deep analysis according to a labelling standardized system configured at the background, and outputting label data; S304, at the video content analysis and feature extraction stage, carrying out image analysis on the video content, and carrying out deep analysis according to the labelling standardized system configured at the background, and outputting the label data; S305, carrying out feature fusion and label generation, namely, fusing the recognition features and label information, and outputting a label result of the sample; carrying out manual rechecking and model optimization, wherein the label result data generated by the system can be subjected to artificial re-check conformation.
Owner:NAT COMP NETWORK & INFORMATION SECURITY MANAGEMENT CENT +1
Rice cooking method and device of electric cooker
InactiveCN107343740AHigh degree of intelligenceLower the altitudeWarming devicesVessels with intergral heatingCookerEngineering
The invention discloses a rice cooking method and device of an electric cooker. The rick cooking method of the electric cooker comprises the following steps: detecting the volume of rice and water during a heating phase of rice; determining a standard boiling parameter value preset in a boiling phase according to the detected volume of the rice and the water, and controlling a heating module in the electric cooker to heat the rice to a boiling state with a first heating powder in the boiling phase, to enable the rice boiling parameter value to reach the standard boiling parameter value; controlling the heating module in the electric cooker to reduce the heating powder to heat by taking the first heating powder as a reference when the rice boiling parameter value reaches to the standard boiling parameter value so as to reduce the height of foam generated by boiling; cooking the rice in the container by vapour when entering into a braised rice phase. The invention discloses rice cooking device of the electric cooker. The method and the device of the invention realizes the automatic cooking including rice draining and improves the intelligence degree of the electric cooker.
Owner:FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD +1
Method for treating ferric trichloride etching waste liquor
ActiveCN101497484AEasy to separateImprove efficiencyMultistage water/sewage treatmentNickel halidesLiquid wasteLiquid state
The invention relates to a method for treating ferric trichloride etching waste liquor, in particular to a method for treating the ferric trichloride etching waste liquor containing nickel, which mainly adopts a two-stage extraction method to remove iron so as to achieve the complete separation of the nickel and the iron, wherein a first stage extraction organic phase combination comprises 15 to 40 percent of extractant, 10 to 20 percent of synergist and 40 to 75 percent of diluent agent according to the volume ratio; a second stage extraction organic phase combination comprises 20 to 50 percent of extractant, 5 to 10 percent of synergist and 40 to 75 percent of diluent agent according to the volume ratio; the extractants and the synergists used in the two stages have various selections; and under the condition that the technological parameters are controlled strictly, with the two stages of extractions, the iron contained in the etching waste liquor is regenerated into a liquid state ferric trichloride product, and the nickel is regenerated into a nickel chloride product. The method overcomes various defects of the prior art, has good iron and nickel separation effect, high efficiency and low cost, achieves the resource recycling of valuable metals to the utmost extent while achieving the decontamination of the ferric trichloride etching waste liquor, and has board technique application prospect.
Owner:DONGJIANG ENVIRONMENTAL
Building waste disposal device with metal separation function
The invention discloses a construction waste treatment device with a metal separation function, comprising a separation box and a crushing box; the crushing box is arranged on the top of the separation box; a feeding channel is arranged in the separating box, and the outlet of the feeding channel is A solenoid valve is installed at the position; a separation plate is also provided in the separation box, and through the setting of the transmission mechanism, the separation plate can separate the metal in batches from the garbage in the discharge channel; the outlet of the discharge channel A sieve is provided below. The invention can effectively separate the metals in the construction waste and avoid the waste of metal resources; meanwhile, the separation effect is good.
Owner:宋衡星
Multipath circulating fluidized bed boiler
ActiveCN101749696AGuaranteed separationGuaranteed long-term operationFluidized bed combustionIncinerator apparatusCombustion chamberPulp and paper industry
The invention discloses a multipath circulating fluidized bed boiler, which comprises a main combustion chamber, an auxiliary combustion chamber and an ash chamber which are parallel to the main combustion chamber, a tail flue, and a coal economizer and a centrifugal separator arranged in the tail flue; the bottom of the auxiliary combustion chamber is inclined to the ash chamber and the inclination angle alpha is between 30 and 60 degrees; the bottom of the ash chamber is inclined to the auxiliary combustion chamber and the inclination angle beta is between 45 and 75 degrees; a material falling passage is reserved between the bottom surface of the ash chamber and the bottom surface of the auxiliary combustion chamber; an asymmetrical inertia separation circulating device is formed by the bottom surfaces of the mutually inclined auxiliary combustion chamber, an inclined plate I and an inclined plate II fixed on the two sides, and the material falling passage; a flow area of the bottom of the ash chamber A2 is no more than half of a flow area A1 of the bottom of the auxiliary combustion chamber; and the bottom surface of the ash chamber is provided with a loose blast cap. The multipath circulating fluidized bed boiler can ensure the smooth conveying of materials and the required material separating amount, prevent the materials from accumulating on the bottom of the combustion chambers for a long time, and ensure smooth circulating, so that a combustion device normally operates for a long term.
Owner:TSINGHUA UNIV +1
Microwave radar moisture sensor
InactiveCN101706459AGuaranteed separation effectGuaranteed measurement efficiencyMoisture content investigation using microwavesTransceiverMoisture sensor
The invention relates to a microwave radar moisture sensor, in particular to a contact / non-contact medium continuous or point sensing type microwave radar moisture sensor. The microwave radar moisture sensor comprises a probe, a signal channel, a signal processor (DSP), a TPS interface, a microprocessor (MCU), an I2C interface and a driving interface, wherein the output port of the probe is provided with an antenna, and the antenna can be provided with a holder and a filter scraper; the signal processor (DSP) and the microprocessor (MCU) are managed by respective software respectively; a pre-detected signal is connected with the driving interface through the probe, the signal channel, the signal processor, the TPS interface and the microprocessor (MCU); in addition, the probe, a polarization separator and a signal transceiver form a loop; and the antenna is arranged on one side or two sides of a detection medium. Because the microwave radar moisture sensor belongs to a multi-sensor system, correlated variables of the sensor are provided with enough interfaces, and other probes for temperature and electric conductivity can be connected with the signal processor through the I2C so as to finish moisture parameter correction.
Owner:杨厚荣
Coal combustion apparatus capable of separating carbon dioxide and separation method thereof
InactiveCN101699187AEasy to handleReduced compression energy consumptionExothermal chemical reaction heat productionCarbon compoundsCycloneEngineering
The invention provides a coal combustion apparatus capable of separating carbon dioxide, which is mainly formed by connecting a fuel reactor, a primary cyclone separator, a dipleg and an air reactor in series; wherein the lower part of the fuel reactor is provided with a mixing chamber with large cross section, and the upper part thereof is provided with a lifting tube with small cross section; and the height of the lifting tube is over three times higher than that of the mixing chamber. The invention also provides a method using the coal combustion apparatus capable of separating the carbon dioxide to separate the carbon dioxide. The fuel reactor adopts the structure of a reactor with long residence time, internal circulation can be formed by granules, and the gas-solid turbulence is improved; the air reactor adopts a moving fluidized bed to ensure the operation to be stable, so that the heat can be evenly released; meanwhile, a heat exchanger is arranged inside the bed, so that coking caused by local overheating since a great deal of heat is released in a centralized way in oxidation reaction can be avoided. Furthermore, the fuel reactor and the air reactor run under the pressure, so that the equipment can be compact, the utilization efficiency of system energy is high, and the subsequent carbon dioxide compression energy consumption is reduced.
Owner:SOUTHEAST UNIV
Fast layout method of 3D printed object based on contour and device thereof
InactiveCN105931296AGuaranteed separabilitySave total printing timeAdditive manufacturing apparatus3D modellingObject basedComputer graphics (images)
The embodiment of the invention discloses a fast layout method of a 3D printed object based on a contour and a device thereof. The method comprises a step of obtaining the projection contour of a three-dimensional model in an XOY plane, a step of obtaining the minimum rectangular enclosing box of each object outer contour polygon, a step of carrying out two-dimensional layout on an enlarged rectangular enclosing box and filling holes, and a step of carrying out corresponding conversion on the three-dimensional model according to a conversion matrix after a contour polygon layout process recorded in the layout process. In the embodiment of the invention, multiple object models in a 3D printer are subjected to automatic layout, while the separation independence between objects can be ensured, more objects as possible are placed in a 3D printing substrate, the total printing time of printing a 3D object can be saved, the method is suitable for all 3D printers such as an FDM and an ink-jet 3D printer.
Owner:SUN YAT SEN UNIV
Preparation process of D-mannose
ActiveCN101851689ANo Contamination ConsequencesGuaranteed separation effectSaccharides productionMolybdateAlcohol
The invention discloses a preparation process of D-mannose, which comprises the following steps that: glucose takes molybdate as a catalyst to be epimerized and converted into mannose under acidic conditions; through simulating the separation of a moving bed, a mannose-rich component B1 and a glucose-rich composition A1 are obtained; the glucose-rich component A1 returns to be epimerized; the mannose-rich component B1 is concentrated; the feed liquid is crystallized in an aqueous phase and centrifuged to obtain crystalline D-mannose C1and mannose mother liquor D1; and the crystalline D-mannose C1 is soaked in absolute ethyl alcohol, refined and dried to obtain a high-purity crystalline D-mannose finished product. The invention has simple process, low environmental pollution degree, low production cost and high purity of products.
Owner:石家庄华旭药业有限责任公司
Zero-emission treatment system and method of epoxy ethane
InactiveCN103706233AFully dissolveImprove liquidityDispersed particle separationChemicalsEpoxyTreatment system
The invention discloses a zero-emission treatment system and method of epoxy ethane. The method comprises the following steps: firstly, a chemical combination treatment is carried out on an epoxy ethane waste gas in a chemical combination device; the epoxy ethane waste gas generates a sulfonation reaction with a sulfonation reaction agent in the chemical combination device; the epoxy ethane is oxidized to generate carbon dioxide and ethylene glycol; the generated carbon dioxide and the residual epoxy ethane waste gas are discharged into a turbulence ball tower; the residual epoxy ethane waste gas is output to the turbulence ball tower by a gas-liquid pump and is fully mixed and dissolved in hot water pumped by the gas-liquid pump in the turbulence ball tower; then, the epoxy ethane waste gas dissolved in the wastewater is treated on the basis of an aeration tank, a sedimentation tank and a filter tank, and meanwhile, organic matters in the wastewater can be treated as well, wherein micro-biological degradation is mainly used for carrying out oxygenation degradation on the epoxy ethane waste gas dissolved in the water through microbial communities forming flocculating constituents in the aeration tank; finally, CO2, H2O, NH3, SO42 and the like are generated and are discharged with the water, so that the epoxy ethane waste gas is treated.
Owner:杨亮月 +1
Equipment for producing cyclohexenol through benzene plus hydrogen
An apparatus for preparing cyclohexane from benzene by hydrogenation is composed of a reaction system and a settling separation system. Said reaction system is a high-pressure reactor with heat-exchanging spiral tube, multi-stage stirrer, gas-phase distributor, liquid-phase distributor and overflow dam. Said settling separation system is a diameter-varied separator with grate barrier overflow dam, settling pipe and baffle plate.
Owner:CHINA SHENMA GROUP +1
Method for smelting vanadium-aluminum alloy by electro-aluminothermic process
Owner:HEBEI IRON AND STEEL
Mobile payment security system for wireless data private network physical isolation internet
ActiveCN103619020AEnsure safetySafe Payment GuaranteePayment protocolsSecurity arrangementNetwork linkPrivate network
The invention provides a mobile payment security system for the wireless data private network physical isolation internet and aims to provide a mobile payment security system which has the advantages that interactivity is strong, internet invasion can be evaded, payment information is not prone to being stolen by a trojan, internal network data transmission is secure and reliable, internet access is not affected, an SIM card can be prevented from being copied. According to the technical scheme, application systems including a payment server and an authentication device are established in a mobile payment security data network which is isolated from the internet, the mobile payment security data network links with an APN or a VPDN, wherein the APN or the VPDN is isolated from the internet and connected with a GSN mobile gateway, the payment sever account establishment, mobile phone number, IMSI number and password four-in-one binding multiple authentication through a password authentication device and a mobile phone number authentication device; when the mobile payment security data network is networked, an internet access channel is automatically disconnected; after physical isolation of the internet succeeds, graphical verification code information interaction is performed between the mobile payment security system and the mobile payment server through a base station.
Owner:龙岩荣创信息科技有限公司
Method for modifying Bayer process, processing low-grade diaspore bauxite and producing alumina
The invention provides a method for modifying a Bayer process, processing low-grade diaspore bauxite and producing alumina. The method comprises steps that: (1) silicon is chemically pre-removed, wherein the low-grade bauxite is immersed into a sodium aluminate solution containing a stabilizing agent, such that a slurry containing dissolved silica is obtained; (2) obtained high-silicon sodium aluminate solution is processed through desilication, wherein desilication crystal seeds are added to the slurry processed through filtration, such that desilication is carried out; (3) the sodium aluminate solution is processed through seed precipitation, wherein aluminum hydroxide crystal seeds are added to the sodium aluminate solution processed through desilication, such that seed precipitation is carried out; (4) the obtained aluminum hydroxide product is baked, such that an alumina product is obtained; (5) a high-pressure dissolution process is carried out, wherein the obtained seed precipitation mother liquor is processed through evaporation and alkali supplementation, and is used in high-pressure dissolution of a concentrate obtained in the step (2); a stabilizing agent is added to the obtained sodium aluminate solution, the sodium aluminate solution is then used for processing the next batch of bauxite, and the steps (1) to (4) are repeated. The method provided by the invention is suitable to be used for processing low-grade diaspore bauxite. With the method, a silicon scaling problem in alumina industries can be effectively solved, energy consumption can be substantially improved, and the quality of the finished product alumina can be improved.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI
Method for representing navigation grid map for 3D scene
ActiveCN106600697AGuaranteed separation effectImprove efficiency3D modellingComputer visionConstrained Delaunay triangulation
The invention provides a method for representing navigation grid map for 3D scene, comprising the following steps: extracting the walking hierarchy planes in a 3D scene; obtaining a set of the walking hierarchy planes; removing the isolated planes and the non-walking planes; abstracting the initial non-passable regions of a way-finding role in the walking hierarchy planes so as to abstracting the models in the 3D scene as non-passable regions; conducting region combination to the polygons in the initial non-passable regions so as to obtain a final non-passable region; combining the intersecting regions in the initial non-passable regions to form a final non-passable region; performing constrained Delaunay triangulation to the constraints of the hierarchy planes to form a triangular set; and structuring a final navigation grid by the triangular sets of all walking hierarchy planes. The final navigation grid capable of fully separating obstacles from walking regions. The invention is applied to the technical field of a digital media and can effectively ensure that obstacles are separated from walking regions.
Owner:沈阳新松虚拟现实产业技术研究院有限公司
Chromatographic stationary phases prepared by taking porous frame material as matrix and used for chiral separation
ActiveCN109569026AIncreased durabilityThe synthesis method is simpleSolid sorbent liquid separationAntibiotic YChiral stationary phase
Owner:NANKAI UNIV
System and method for multistation cooperation preparation of flexible electronics
ActiveCN105711099AIncrease productivityRealize repetitive productionAdditive manufacturing apparatusLaser beam welding apparatusElectricityComputer module
The invention discloses a system and a method for multistation cooperation preparation of flexible electronics. The system comprises a rotating disc module, and a substrate loading and unloading module, a base electro-spraying module, a bottom-layer insulating layer 3D print module, an electrospinning module, a top-layer insulating layer 3D print module, a laser peeling module and a material fetching module, which are distributed at the periphery of the rotating disc module, wherein the rotating disc module is used for fixing substrates and converting stations; the substrate loading and unloading module is used for picking and transferring substrates; the base electro-spraying module is used for preparing bases; the bottom-layer and top-layer insulating layer 3D print modules are separately used for printing bottom-layer and top-layer insulating layers; the electrospinning module is used for spinning circuits; the laser peeling module is used for ablating bases and automatically separating substrates from flexible electronics; and the material fetching module is used for fetching separated flexible electronics from substrates. The method utilizes the system to carry out the multistation cooperation preparation of flexible electronics. The whole set of system can be cyclically used, and is high in production efficiency, low in cost and high in precision.
Owner:武汉国创科光电装备有限公司
Steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system and process
ActiveCN106186445APollution realizedReduce pollutionSludge treatmentOrganic compound preparationSludgeEngineering
The invention discloses a steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system and process and belongs to the technical fields of environmental protection and wastewater treatment. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal system disclosed by the invention comprises a mud acid stirring and dissolving device, a lead and zinc removal device, a flocculating agent preparation device, a hydrogen sulfide absorption device and a lead and zinc precipitation separation device, wherein the mud acid stirring and dissolving device is connected with the lead and zinc removal device through a pipeline; and the lead and zinc removal device is connected with the flocculating agent preparation device, the hydrogen sulfide absorption device and the lead and zinc precipitation separation device through pipelines. The steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal process disclosed by the invention comprises the following steps: stirring and dissolving mud acids, removing lead and zinc, preparing polyferric flocculants, purifying hydrogen sulfide tail gas and performing lead and zinc precipitation separation. According to the invention, steel wire rope picking waste acid and high zinc and lead-containing sludge co-disposal can be realized, the elements such as zinc and lead can be effectively removed, and industrial products with high additive values are prepared.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Preparation method and device for polyenoic acid and ester monomer thereof
ActiveCN103804171ARelieve pressureAvoid pollutionIon-exchange process apparatusOrganic compound preparationChromatographic separationDead volume
The invention provides a preparation method and device for polyenoic acid and an ester monomer thereof. The polyenoic acid and the ester monomer thereof are prepared by combining a primary short-range distillation method without consumption of an organic solvent with a supercritical carbon dioxide fluid chromatography. The short-range distillation technology is used for pre-separating long-chain compounds, polar compounds and volatile compounds in the raw materials of the polyenoic acid and the ester thereof to relieve the pressure of supercritical carbon dioxide fluid chromatographic separation and avoid polluting a chromatographic column, so that the polyenoic acid and the ester monomer thereof can be more efficiently prepared; a supercritical carbon dioxide fluid chromatograph device which takes carbon dioxide at a supercritical state as a chromatographic separation mobile phase, and has constant temperature control, no pulse and very small system dead volume is used for separating compound monomer components. The preparation method and device can be used for high-purity separation preparation of the polyenoic acid and the ester monomer thereof in fish oil, microalgae oil, microorganism oil, plant oil and other bio-oil rough grease. The preparation method and device can be used for guaranteeing high purity of produced products and no solvent residues; and the method is economical, safe and effective.
Owner:THIRD INST OF OCEANOGRAPHY STATE OCEANIC ADMINISTATION
Atmospheric aerosol trapping method and device
The invention relates to an atmospheric aerosol trapping method and a device thereof. The method is characterized in that an electrical heating rod is utilized to heat pure water in continuous constant current to generate vapor; the vapor meets atmospheric airflow in a cavity where an aerosol absorbs moisture and expands; with the stay of the vapor airflow in the cavity where the aerosol absorbs moisture and expands, and with the natural cooling action, the aerosol absorbs moisture and expands; the airflow takes the aerosol which absorbs moisture and expands to a snake-shaped cooler to cool the vapor airflow into a solution, and the aerosol is trapped in the solution; the airflow with the solution formed through condensation realizes the separation of the air and the solution in an aerosol impact collector, and the collection of the aerosol. The aerosol trapping device comprises an air course part, a vapor generating part for providing vapor for the air course, a cooling device for cooling the air course circularly, and a circuit part for controlling the vapor generating part, the air course part and the cooling device. The method and the device can effectively realize the quick trapping of aerosol and on-line automatic analysis of the chemical composition of the aerosol.
Owner:PEKING UNIV
Method for efficiently preparing feldspar glazes for ceramics
The invention discloses a method for efficiently preparing feldspar glazes for ceramics. The method comprises the following specific steps: after raw feldspar ores are crushed, grinding the raw feldspar ores by a high-alumina ball grinding mill, classifying the raw feldspar ores in a spiral manner by a spiral classifier, and screening the raw feldspar ores by a high-frequency classifying screen, so that the sufficient dissociation of feldspar mines and the controlling the granularity can be ensured, the feeding granularity of the fed feldspar mines can be ensured, and conditions for the following magnetic separation and the classifying processes of a cyclone are created; separating and effectively removing magnetic impurities of the raw feldspar ores by the magnetic separation with various intensity in a classifying and multi-section manner of the granularity, increasing the kinds of products, and increasing the recovery of resources. Through the use of the technologies, such as the classification of the cyclone, the permanent magnet iron removal of a drum magnetic separator, the iron removal of a vertical ring pulsating high-gradient strong magnetic separator and the like, the adaptability and the reliability are greatly improved, the quality of the concentrates is effectively ensured and stabilized, the risk due to fluctuation of the impurity content is reduced, the separating efficiency and the comprehensive utilization of resources are improved, and the efficiently comprehensive utilization of the feldspar resources is realized.
Owner:赣州金环磁选科技装备股份有限公司
Easy-to-remove double-sided UV protective adhesive tape and preparation method of same
InactiveCN108611010ARealize easy removal functionGood removal effectPolyureas/polyurethane adhesivesEster polymer adhesivesUv protectiveEconomic benefits
The invention relates to the technical field of double-sided adhesive tapes and particularly relates to an easy-to-remove double-sided UV protective adhesive tape and a preparation method of same. Theadhesive tape includes, successively, an upper release film, a first adhesive layer, a base material film, a second adhesive layer and a second release film, wherein the base material film is a PET heat shrinkage film; the first adhesive layer is a pressure-sensitive glue layer and the second adhesive layer is a UV bonding-reduced glue layer. One side of the double-sided UV protective adhesive tape is the UV bonding-reduced glue layer while the other side is the pressure-sensitive glue layer, so that adhesion performances of the two sides are different; during use, the side with the UV bonding-reduced glue layer is attached to a metal sheet material while the side with the pressure-sensitive glue layer is attached to a glass sheet material; in addition, the base material film is preparedwith the heat shrinkage film, so that the adhesive tape is separated from the metal sheet material and the glass sheet material sequentially. The preparation method is simple and is free of strict conditions and equipment, is very suitable for large-scale mass production and has great economic benefit.
Owner:DONGGUAN AOZON ELECTRONICS MATERIAL
Technique and system for preparing propylene oxide by directly oxidizing propylene with oxygen and hydrogen
ActiveCN104650008AAvoid damageAvoid pollutionOrganic chemistryBulk chemical productionEnvironmental resistanceOrganic sulfide compound
The invention provides a technique and a system for preparing propylene oxide by directly oxidizing propylene with oxygen and hydrogen. The technique comprises the following steps that: (1) propylene, circulation propylene, and high-boiling-point organic sulfide are added to a mixed solvent of methanol and hydrazine hydrate, hydrogen and oxygen are accessed, and raw propylene oxide is produced; (2) raw propylene oxide is cooled and pumped into a rough separation tower by a pump, and organic sulfide and a few of high-boiling-point by-products in raw propylene oxide are removed; (3) a balance mixture of propylene and propylene oxide enters a propylene stripping tower, and unreacted propylene and a little propylene oxide in the mixture are removed; and (4) balance propylene oxide mixed liquor enters an extraction purification tower containing cumin and an alkaline solution, and is further extracted and rectified to form propylene oxide with high purity. The technique and the system are energy-saving and environmentally friendly, can increase the purity and the yield of propylene oxide significantly, reduce the losses of propylene oxide, and are suitable for industrialized production.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Synthesis method and applications of magnetic nano high-molecular polymer
InactiveCN105294908AImprove hydrophobicityGood dispersionFatty/oily/floating substances removal devicesLiquid separationSynthesis methodsCompound (substance)
The invention discloses a synthesis method of a magnetic nano high-molecular polymer. The polymer is polystyrene coated ferriferrous oxide nanoparticle, which is prepared through a chemical co-precipitation method. In the synthesis of ferriferrous oxide nanoparticle, trisodium citrate is taken as the modifier to improve the dispersibility of ferriferrous oxide in a water solution; at the same time, polystyrene can better cover the surface of ferriferrous oxide nanoparticles, the specific surface of the nanoparticle is large, at the same time, the hydrophobicity of polystyrene is large, and the polystyrene that is covered on the surface of ferriferrous oxide nanoparticle has good affinity on oil. The synthesized nanoparticle is super-paramagnetic, has a large specific surface and strong hydrophobicity, and thus can be used to process oil-containing wastewater. The wastewater treatment has the characteristics of short separation time, simple operation, high oil elimination rate, and environment-friendliness.
Owner:云南健牛环境监测有限公司
Method for extracting copper from organic silicon chemical waste residue leaching liquid of chloride and mixed salts containing copper
InactiveCN1844422AGuaranteed separation effectLow costPhotography auxillary processesCopper oxides/halidesChemical industryDecomposition
The invention selects oxalic acid solution to act as the precipitating agents of organosilicon chemical industry waste slag leachate of copper chlorate or mixture salt system, after filtering, washing and drying of the process residue of copper oxalic acid, heat decomposition in oxidizing atmosphere and at the temperature of 500~900 centigrade, the production of copper oxide is obtained by product yield cool-down. The yield acid of oxalic acid precipitation process is retuned organosilicon chemical industry waste slag leachate system to act as infusion. After the heat decomposition copper oxide dissolves in sulphuric acid, the solution can be used in electrodepositing cathode copper or regenerating copper sulphate, also can be used to produce cathode copper by copper electrodepositing solution dissolution regeneration electrodeposition, also sell as commercial copper oxide.
Owner:范有志
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