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92 results about "Oxygen balance" patented technology
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Oxygen balance (OB, or OB%) is an expression that is used to indicate the degree to which an explosive can be oxidized. If an explosive molecule contains just enough oxygen to form carbon dioxide from carbon, water from hydrogen atoms, all of its sulfur dioxide from sulfur, and all metal oxides from metals with no excess, the molecule is said to have a zero oxygen balance. The molecule is said to have a positive oxygen balance if it contains more oxygen than is needed and a negative oxygen balance if it contains less oxygen than is needed; the combustion will then be incomplete, and large amount of toxic gases like carbon monoxide will be present.
Method for growing Ce<3+> doped lutetium yttrium silicate scintillation crystal
ActiveCN103849933AAchieve oxygen balanceImprove crystal qualityPolycrystalline material growthAfter-treatment detailsLutetiumScintillation crystals
The invention relates to a method for growing a Ce<3+> doped lutetium yttrium silicate scintillation crystal. The method is characterized by comprising the concrete steps of (1) weighing and mixing; (2) pressing and sintering; (3) heating for fusing; (4) seeding; (5) high temperature oxygen diffusion; (6) necking, shoulder extending and keeping constant-diameter; (7) cooling; (8) in-situ annealing. According to the invention, a crystal growth furnace is properly modified, so that high-temperature oxygen diffusion and in-situ annealing at a reducing atmosphere can be simultaneously realized, oxygen balance can also be realized, and furthermore, the crystal is not easy to crack and become yellow and the good crystal quality is kept. The success rate for growing the crystal is increased from 40-45% to 75-85%.
Owner:SHANGHAI ADVANCED SILICON TECH CO LTD
Foam plastics mould preventing carbon defect of lost foam casting and preparation method thereof
InactiveCN102389941ASolving the carbon deficiency problemAvoid stickingFoundry moulding apparatusUltimate tensile strengthLost-foam casting
The invention discloses a foam plastics mould preventing carbon defect of a lost foam casting and a preparation method thereof. The preparation method comprises the following steps: (1) foam bead grains and oxidation components are mixed to obtain a pre-foaming material; and the oxidation components are solid powdery materials with the oxygen balance larger than zero; and (2) the pre-foaming material is subject to the pre-foaming and the foaming moulding in sequence to obtain the foam plastics mould, and through the adoption of the method, the foam plastics mould is burnt fully to form a clean pouring cavity for preventing foam residues from being stuck on the inner wall of a coating layer; and (3) the carbon increment of the casting is reduced to 0.01 percent below, the integral texture of the casting is compact, the surface property and the strength property are superior, the carbon accumulation defect is avoided, the quality of the casting is greatly improved, and the finished product ratio is improved.
Owner:郭雷辰
Converter steelmaking method for molten iron [Si] (0.50%)
InactiveCN108893574ANo splashingThe smelting process is stableManufacturing convertersLime productionSteelmakingPhosphor
The invention discloses a converter steelmaking method for molten iron [Si] (0.50%). The converter steelmaking method comprises the following steps: confirming objective temperature, objective carbon,final phosphor, dephosphorizing rate and alkalinity of final residue according to different types of steel; calculating lime addition amount, dolomite addition amount, sinter addition amount and oxygen addition amount during a blowing process according to oxygen balance and heat balance; performing circular smelting in the smelting sequence of leaving residue in the converter, protecting the converter by splashing residue, adding waste steel and mixing with iron, blowing and then tapping. According to the invention, the slag amount and the process splashing phenomenon can be reduced and the consumption of lime and dolomite can be reduced without influence on the dephosphorizing rate.
![Converter steelmaking method for molten iron [Si] (0.50%)](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/b91bb63e-6f3d-4dcb-be2c-2c0d3c4466dc/BDA0001701172290000041.png "Converter steelmaking method for molten iron [Si] (0.50%)")
![Converter steelmaking method for molten iron [Si] (0.50%)](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/b91bb63e-6f3d-4dcb-be2c-2c0d3c4466dc/BDA0001701172290000042.png "Converter steelmaking method for molten iron [Si] (0.50%)")
![Converter steelmaking method for molten iron [Si] (0.50%)](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/b91bb63e-6f3d-4dcb-be2c-2c0d3c4466dc/BDA0001701172290000051.png "Converter steelmaking method for molten iron [Si] (0.50%)")
Owner:SHANDONG IRON & STEEL CO LTD
Reactor type instrument for quickly determining biochemical oxygen demand
InactiveCN1790002AAvoid designEasy to replaceMicrobiological testing/measurementMaterial analysis by electric/magnetic meansMiniaturizationWater quality
The invention discloses a BOD rapid detecting analyzer of water pollution monitor, which is characterized by the following: setting a cage in the biochemistry reaction measuring chamber; placing the solidified microbial particle in the cage; contacting the detected water sample in the biochemistry reaction measuring chamber directly through microscale aerated conduit; adapting metal hot container to cover the thermostatic device. The invention uses the aerated conduit instead of the magnetic blending device to accomplish rapid mass transformation and dissolved oxygen balance, which shortens the measuring time and changes the device periodically.
Owner:BEIJING TSINGNENG CHUANGXIN SCI & TECH CO LTD
Single-lobe-pump dual-action medical molecular sieve oxygen generating system and oxygen generating method
ActiveCN106365123AReduce and optimize process equipmentWork reliablySpecific gas purification/separationOxygen preparationSINGLE LOBEMolecular sieve
The invention discloses a single-lobe-pump dual-action medical molecular sieve oxygen generating system and an oxygen generating method and relates to the technical field of medical gas manufacturing equipment. The system comprises an oxygen-generating dual-action air compressor, an adsorption tower, an oxygen balance tank and an oxygen buffering tank; the output end of the oxygen-generating dual-action air compressor is connected with the input end of the adsorption tower, and the output end of the adsorption tower is connected with the input end of the oxygen buffering tank; an input pipeline and an output pipeline are connected between the output end of the adsorption tower and the input end of the oxygen balance tank. The number of technology equipment is reduced, the technology equipment is optimized, working is stable and reliable, oxygen-generating efficiency is improved, and energy consumption is lowered; meanwhile, the single-lobe-pump dual-action medical molecular sieve oxygen generating system is reasonable in structural design, convenient to install and maintain and low in operation and maintenance cost.
Owner:FEDERAL MEDICAL TREATMENT ENG CO LTD CHENGDU
Methods and compositions for decreasing carbon emissions
InactiveUS20090320728A1Reduce weightNo technology for easilyFuel supply regulationLiquid carbonaceous fuelsCombustion chamberOxygen balance
A method of burning fuel in a combustion chamber whereby reducing overall carbon emissions, comprising: feeding an oxidizing component and a combustible component to a combustion chamber in a ratio based on zero oxygen balance principle, wherein the oxidizing component has an oxygen balance value of more than zero, and the combustible component has an oxygen balance value of less than zero. The method of burning fuel can reduce overall carbon emissions, even to zero.
Owner:WEI PICHANG
Urban vegetation planning method
ActiveCN103700053ASatisfy carbon and oxygen demandData processing applicationsPlanning methodOxygen balance
The invention provides an urban vegetation planning method. The method comprises the following steps: figuring out an oxygen release ecological function index of urban vegetation according to an annual oxygen release amount of the urban vegetation and an annual urban oxygen consumption amount; figuring out a carbon fixation ecological function index of the urban vegetation according to an annual carbon fixation amount of the urban vegetation and an annual urban carbon emission amount; figuring out the vegetation area needing to be increased according to an oxygen release ecological function index of the urban vegetation and the carbon fixation ecological function index of the urban vegetation. According to the invention, the urban vegetation planning method can be used for planning urban vegetation according to a carbon-oxygen balance condition of the urban vegetation.
Owner:INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
Energetic compound 3,3'-diamido-2,2'-2(2,2,2-trinitroethyl)-5,5'-linked triazole-diamine and preparation method and intermediate thereof
ActiveCN104447591AReduce sensitivityMild reaction conditionsOrganic chemistryNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsHydroxylamineHigh energy
The invention discloses an energetic material compound 3,3'-diamido-2,2'-2(2,2,2-trinitroethyl)-5,5'-linked triazole-diamine and a preparation method and intermediate of the energetic material compound 3,3'-diamido-2,2'-2(2,2,2-trinitroethyl)-5,5'-linked triazole-diamine. Firstly, 3,3'-diamido-5,5'-2(1H-1,2,4-triazole) is adopted as raw materials, and synthesized into 3,3',4,4'-tetramino-5,5'-linked triazole through nitrogenation and ammoniation of nucleophilic animation reagent 2,4,6-trimethylbenzene sulfonyl hydroxylamine, then hydroxylation is carried out through formaldehyde solutions, and finally a condensation reaction is carried out on the 3,3'-diamido-5,5'-2(1H-1,2,4-triazole) and trinitromethane to generate a target product. Solvents adopted in the preparation method are low in price. The raw materials are prepared easily, reaction steps are few, and productivity is high. The detonation energy of the target product can be equivalent to that of HMX, sensitivity is lower than that of RDX, intramolecular oxygen balance is high, and the energetic material compound 3,3'-diamido-2,2'-2(2,2,2-trinitroethyl)-5,5'-linked triazole-diamine is a high-energy explosive with the good application prospect.
Owner:INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
Method and system for determining suffocation death risk of fishes
ActiveCN108668962AThere is no risk of death from suffocationNo risk of deathClimate change adaptationPisciculture and aquariaDynamic modelsDeath risk
The invention discloses a method and system for determining the suffocation death risk of fishes. The method comprises the steps of obtaining fish data and water data in a closed environment; establishing an oxygen consumption rate prediction model and a non-fish oxygen balance model; utilizing the oxygen consumption rate prediction model and the non-fish oxygen balance model for establishing a dissolved oxygen concentration dynamic model; establishing a suffocation point prediction model; utilizing the dissolved oxygen concentration dynamic model for predicting a dynamic trajectory of the dissolved oxygen concentration in water to be predicted; utilizing the suffocation point prediction model for predicating suffocation points of the fishes in the water to be predicted; judging whether ornot predicted suffocation point values are smaller than or equal to the minimum dissolved oxygen concentration value in the dynamic trajectory of the dissolved oxygen concentration; if yes, determining that the fishes in the water to be predicted do not have the suffocation death risk; if not, determining that the fishes with weights corresponding to the predicted suffocation point values greaterthan the minimum dissolved oxygen concentration value have the suffocation death risk. By means of the method, the death risk of different fishes under the oxygen deficit condition of the water can be determined, and the reliability is high.
Owner:BEIJING NORMAL UNIVERSITY
Secondary refining production method of super-clean high-carbon chromium bearing steel
The invention relates to a secondary refining production method of super-clean high-carbon chromium bearing steel, which comprises the steps of performing processes of KR (Kanbara reactor), BOF (basicoxygen furnace), RS (Rhein Stahl) process, LF (ladle furnace), RH (Ruhrstahl Heraeus) process, CC (continuous casting), and rolling; carrying out further control, to be specific, (1) allowing final sulfur content of hot metal from KR hot metal pretreatment to be < / =0.005%; (2) performing BOF oxygen decarburization, allowing final carbon content to be 0.15-0.80%, adding aluminum of 0.5 kg / t and above into molten steel during tapping according to an aluminum-oxygen balance chart so that oxygen content in tapped steel is dropped to 30 ppm and below, and controlling tapping temperature to 1600-1700 DEG C; (3) after tapping of BOF converter smelting, performing RS slag scraping, and removing slag in a ladle completely; (4) adding refining slag for LF refining, controlling free CaO molecular percent to 40-60% in the refining slag, controlling aluminum content in steel to 0.03-0.07%, controlling oxygen content upon tapping to 10 ppm and below, and allowing tapping temperature to be 1550-1610DEG C; (5) performing argon stirring the whole RH vacuum degassing process, and holding the vacuity of 100 Pa and below for 10 min and longer. The method of the application has the advantages of highefficiency, low cost, and low energy consumption; steel refined via the method is super clean.
Owner:JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
Compound energy-saving type medical molecular sieve central oxygen generation and medical air compression integrated device
InactiveCN102674259AGuaranteed stabilityGuaranteed validityRespiratorsOxygen preparationAir compressionMolecular sieve
The invention relates to a compound energy-saving type medical molecular sieve central oxygen generation and medical air compression integrated device, comprising a main air supply source, auxiliary air supply sources, and a standby air supply source for continuing to supply oxygen when the main air source and the auxiliary air sources stop at the same time, wherein the main air supply source, the auxiliary air supply sources and the standby air supply source share one air balance tank, one oxygen balance tank and one oxygen division pot with a voltage-sharing and flow-equalizing function, the auxiliary air supply sources are arranged beside the main air supply source side by side and perform auxiliary supplement air supply for the main air supply source, and the standby air supply source continues to supply oxygen when the main air supply source and the auxiliary air supply sources stop at the same.
Owner:珠海市精钰科技设备有限公司
Preparation method of polymer-based composite energetic material-coated modified nano metal particles
InactiveCN110452075AUniform particle size distributionHigh particle sphericityExplosive working-up apparatusNon-explosive/non-thermic compositionsMetal particlePolymer solution
Owner:NORTHWESTERN POLYTECHNICAL UNIV +1
Multifunctional explosive mixing and loading truck
InactiveCN103319288AImprove operational reliabilitySimple structureExplosivesEmulsion explosiveEngineering
The invention provides a multifunctional explosive mixing and loading truck which comprises a spiral material delivering system, a plurality of material bins and a plurality of pipelines. Emulsified base, porous granular-form ammonium nitrate or physical density controllers are stored in main material bins. A diesel oil tank, sensitizing solution tanks and a water tank for cleaning are provided in auxiliary material bins. By means of different combinations of different raw materials in the material bins, output pipelines, spirals, partitions and baffles, the truck can achieve the technical effect of mixing a plurality of explosives. The truck provided by the invention is a multi-purpose vehicle with wide applications. The truck can mix and load, on site, multi-density emulsion explosives, heavy emulsion or heavy anfo explosives, fixed-density heavy emulsion or heavy anfo explosives, porous granular anfo explosives, emulsion explosives for long-distance delivery, and negative oxygen balance-based heavy anfo or heavy emulsion explosives; and thus the truck meets the needs of a plurality of blasting operation environments.
Owner:QINGDAO TARGET MINING SERVICES
Cool burning gas generating material for a vehicle occupant protection apparatus
A gas generating material (140) for use in a vehicle occupant protection apparatus (10) comprises about 5% to about 20% by weight of the gas generating material, of a binder, 0 to about 50%, by weight of the gas generating material, of an energetic fuel, and an amount of oxidizer effective to oxygen balance the gas generating material. More than 50% by weight of the oxidizer is basic copper nitrate. The binder comprises at least about 20% by volume of the gas generating material.
Owner:TRW INC
Carbon nanostructure synthesis from carbon-excess explosives in supercritical fluid
Carbon nanostructures are synthesized from carbon-excess explosives having a negative oxygen balance. A supercritical fluid provides an environment that safely dissolves and decomposes the explosive molecules into its reactant products including activated C or CO and provides the temperature and pressure for the required collision rate of activated C atoms and CO molecules to form carbon nanostructures such as graphene, fullerenes and nanotubes. The nanostructures may be synthesized without a metal reactant at relatively low temperatures in the supercritical fluid to provide a cost-effective path to bulk fabrication. These nanostructures may be synthesized “metal free”. As the supercritical fluid provides an inert buffer that does not react with the explosive, the fluid is preserved. Once the nanostructures are removed, the other reaction products may be removed and the fluid recycled.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA +1
Method for adjusting oxygen balance of energy-containing material based on emulsion method
ActiveCN107473911AHigh energyImprove securityExplosive working-up apparatusBulk chemical productionEmulsionFreeze-drying
The invention discloses a method for adjusting oxygen balance of an energy-containing material based on an emulsion method. The method comprises the following steps: weighing a certain amount of the energy-containing material and an oxidant; dissolving the energy-containing material and the oxidant into specific solvents respectively; after sufficiently dissolving solutes, mixing and stirring; adding a proper amount of a surfactant until a suspension solution is formed; carrying out ultrasonic treatment for certain time to form uniform emulsion; taking out the emulsion and immediately putting the emulsion into a freezer for rapidly freezing the emulsion; putting the frozen emulsion into a freeze drying device and drying to obtain a composite energy-containing material. According to the compound prepared by the method, the energy-containing material and the oxidant are uniformly compounded in a micro-scale, and energy is greatly improved (the heat releasing amount can be improved by 60 percent or more); meanwhile, the safety performance can be remarkably improved. The method disclosed by the invention has the advantages of moderate conditions, simple flow, low cost, safety and reliability; the novel method for adjusting the oxygen balance of the energy-containing material has a wide application prospect in military and civilian fields.
Owner:SOUTHWEAT UNIV OF SCI & TECH
Water-resisting colloidal emulsion explosive and preparation method thereof
The invention discloses water-resisting colloidal emulsion explosive. The water-resisting colloidal emulsion explosive is prepared from the following components in parts by mass: 88-96 parts of ammonium nitrate, 6-10 parts of sodium nitrate, 4-8 parts of potassium nitrate, 3-5 parts of urea, 1-3 parts of an emulsifying agent, 9-11 parts of water, 5-7 parts of an oil phase, 4-6 parts of expanded perlite and 0.5-1.5 parts of mixed rare earth. The invention further discloses a preparation method of the water-resisting colloidal emulsion explosive. When the product is used, the product has low sensitivity on mechanical and thermal effects; the medicine filling density can be adjusted; the product has good water resistance and can be stored in flowing water, even deep water; the detonation sensitivity can be adjusted so that a relay detonator is used for detonating when necessary from the detonation of a standard detonator; no dust is generated and no electrolysis and oil seepage phenomena occur; and meanwhile, the system is close to zero oxygen balance, the toxicity of gas released in a detonation process is small, raw materials are easily available and the construction cost is relatively cheap.
Owner:宜兴市阳生化工有限公司
Carbon nanostructure synthesis from carbon-excess explosives in supercritical fluid
Carbon nanostructures are synthesized from carbon-excess explosives having a negative oxygen balance. A supercritical fluid provides an environment that safely dissolves and decomposes the explosive molecules into its reactant products including activated C or CO and provides the temperature and pressure for the required collision rate of activated C atoms and CO molecules to form carbon nanostructures such as graphene, fullerenes and nanotubes. The nanostructures may be synthesized without a metal reactant at relatively low temperatures in the supercritical fluid to provide a cost-effective path to bulk fabrication. These nanostructures may be synthesized “metal free”. As the supercritical fluid provides an inert buffer that does not react with the explosive, the fluid is preserved. Once the nanostructures are removed, the other reaction products may be removed and the fluid recycled.
Owner:THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA +1
Compound medical molecular sieve center oxygen generation and medical compressed air integrated equipment
InactiveCN102674264AImprove reliabilityGuaranteed stabilityRespiratorsChemical industryMolecular sieveEngineering
The invention relates to compound medical molecular sieve center oxygen generation and medical compressed air integrated equipment, which comprises a main air source, an auxiliary air source and a standby air source which can continuously supply oxygen after the main air source and the auxiliary air source are shut down at the same time. The main air source, the auxiliary air source and the standby air source share one air balance tank, one oxygen balance tank and an oxygen distribution cylinder with a pressure and flow equalizing effect. The auxiliary air source is abreast arranged beside the main air source and is used for conducting auxiliary and supplementary air supply to the main air source. After the main air source and the auxiliary air source are shut down at the same time, the standby air source continuously supplies air.
Owner:珠海市精钰科技设备有限公司
A kind of extra-furnace refining production method of ultra-pure high-carbon chromium bearing steel
Owner:JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
Nitramine furazan energetic potassium salt, and preparation method and application thereof
ActiveCN106928161AOrganic chemistryNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsPotassiumNitration
The invention provides a nitramine furazan energetic potassium salt, and a preparation method and the application thereof. The nitramine furazan energetic potassium salt has the structure as shown in the description and can be prepared by a one-pot method of nitration of an aminofurazan nitration precursor and treatment of potassium salt. The nitramine furazan energetic potassium salt has the characteristics of being high in oxygen balance, high in energy and high in content of potassium, can be used as a green primary explosive, and can be applied to flash suppression in a solid propellant.
Owner:SHANGHAI INST OF ORGANIC CHEMISTRY - CHINESE ACAD OF SCI
Procedure and installation for on-site manufacturing of explosives made from a water based oxidizing product
The procedure involves the mixture of a water based oxidizing product with an oxygen balance greater than 14% consisting of a water solution saturated with oxidizing salts, oxidizing particles in suspension and thickening agents, with a fuel and a gas in a mixer, by means of the formation of an intimate mixture of the oxidizing product and the fuel and the formation of a suspension or emulsion of gas in the mixture. The density of the end explosive product may be varied according to the gas flow and this is controlled before introducing the explosive into the bore. The installation consists of a tank (1) with the oxidizing product, a fuel tank (11), a gas reserve (10), a mixer (5), a pump (3), a dosing device for the fuel (12) with a flow meter (13) and a regulating device of the gas flow (8), and, optionally, a tank (2) with a stabilizer of the gas bubbles, a dosing pump (4) and a flow meter (7).
Owner:UNION ESPANOLA DE EXPLOSIVOS SA
Diazo(N-dinitryl ethyl) furazan energy-containing ionic salts and preparation method thereof
InactiveCN103121977AHigh densityImprove detonation performanceOrganic chemistryNitrated acyclic/alicyclic/heterocyclic amine explosive compositionsDetonationOrganic base
The invention relates to diazo(N-dinitryl ethyl) furazan energy-containing ionic salts and a preparation method thereof, and belongs to the technical field of energy-containing materials. The synthetic method comprises the following steps of: performing acid-base neutralization reaction of diazo(N-dinitryl ethyl) furazan and 2 times of organic base in mole to obtain corresponding energy-containing ionic salts or performing reaction of diazo(N-dinitryl ethyl) furazan sylvite with 2 times of hydrochloride in mole of corresponding cations; and filtering the precipitate to obtain the target product. The synthetic method provided by the invention is simple and easy to industrialize. 6 energy-containing ionic salts are better in thermal stability, the calculated detonation performance of the energy-containing ionic salts is far superior to that of TNT (Trinitrotoluene), and the detonation performance of part of compounds is approximate to that of RDX (Cyclotrimethylene Trinitramine). The diazo(N-dinitryl ethyl) furazan energy-containing ionic salts can be used as substituents of a nitroform explosive and a furazan explosive for improving oxygen balance in a mixed explosive and used as an oxygen supply component in a propellant.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Pentazole lead composite salt and preparation method thereof
ActiveCN113278160AImprove thermal stabilitySignificant exothermic featuresNon-explosive/non-thermic compositionsPressure gas generationPtru catalystPhysical chemistry
The invention discloses pentazole lead composite salt and a preparation method thereof. The molecular formula of the pentazole lead composite salt is Pb12H82N104O53, and the pentazole lead composite salt has a three-dimensional coordination polymer structure. The method comprises the following steps: preparing a pentazole lead solution; conducting a reaction for synthesizing of a composite salt; and volatilizing the solvent to synthesize the Pb12(N5)20(NO3)4(H2O)41 crystal. The pentazole lead composite salt provided by the invention is a stable existence form of pentazole lead, has the advantages of simple preparation method, good stability, zero oxygen balance and the like, and can be used as a solid propellant combustion catalyst.
Owner:NANJING UNIV OF SCI & TECH
Method for determining furnace heat by using blast furnace slag iron heat index
ActiveCN112593030AImproved furnace heat controlQuality improvedSteel manufacturing process aspectsBlast furnace detailsSlagHeat balance
The invention relates to a method for determining furnace heat by using a blast furnace slag iron heat index, belongs to the technical field of blast furnace operation control, and solves the technical problem about making correct judgment on the furnace heat of a blast furnace. The method has the main principles that a slag-iron heat index capable of reflecting the heat states of slag and molteniron is solved by using a blast furnace high-temperature zone heat balance and carbon-oxygen balance equation, then a blast furnace heat storage index is constructed according to historical data, thetotal heat level in the furnace is determined, and a furnace heat index of the blast furnace is constructed by combining chemical heat and physical heat parameters of the blast furnace, then the furnace heat level of the blast furnace can be determined, and blast furnace heat judgment and adjustment are guided, so that the molten iron quality is improved, and the furnace condition is stabilized.
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
Oxygen generation equipment of composite medical molecular sieve center
InactiveCN102674260AImprove reliabilityGuaranteed stabilityOxygen preparationMolecular sieveProcess engineering
The invention relates to oxygen generation equipment of a composite medical molecular sieve center, which comprises a main gas supply source, an auxiliary gas supply source and a backup gas supply source which can continue to supply oxygen when the main gas supply source and the auxiliary gas supply source are shut down at the same time, the main gas supply source, the auxiliary gas supply source and the backup gas supply source share an air balancing tank, an oxygen balancing tank and an oxygen separating cylinder which has functions of equalizing pressure and equalizing flow, the auxiliary gas supply source are arranged beside and in parallel with the main gas supply source to auxiliary supplement oxygen for the main gas supply source, and the backup gas supply source continues to supply oxygen when the main gas supply source and the auxiliary gas supply source are shut down at the same time.
Owner:珠海市精钰科技设备有限公司
Efficient oxygen dissolving system for aquaculture and dynamic intelligent control method of system
PendingCN107568141AHigh yieldAutomated Oxygen ManagementPisciculture and aquariaAutomatic controlGaseous oxygen
The invention discloses an efficient oxygen dissolving system for aquaculture and a dynamic intelligent control method of the system. The system comprises a plurality of high-aeration oxygen dissolving water preparation devices, a frequency modulation pump, an oxygen sensor and a PLC (programmable logic controller). Each high-aeration oxygen dissolving water preparation device comprises an oxygenbalance tank, an oxygen dissolving generator, a gaseous oxygen dissolving balance device, a gas-liquid interface generator and a moisture separator, wherein the oxygen dissolving generator is connected with the oxygen balance tank, the gaseous oxygen dissolving balance device is connected with the oxygen dissolving generator, the gas-liquid interface generator is connected with the gaseous oxygendissolving balance device and the oxygen dissolving generator, and the moisture separator is connected with the gas-liquid interface generator, the oxygen dissolving generator and the oxygen balance tank. The oxygen sensor is arranged in aquaculture water, the frequency modulation pump is connected with the oxygen dissolving generator and used for adjusting the quantity of high-aeration oxygen dissolving water conveyed into the aquaculture water, and the PLC is electrically connected with the gaseous oxygen dissolving balance device, the gas-liquid interface generator, the frequency modulationpump and the oxygen sensor. According to the system and the method, automatic control is realized, manpower is effectively saved, and fishpond daily management and cost are effectively reduced.
Owner:上海通凌化工有限公司
A method for growing trivalent cerium ion doped yttrium lutetium silicate scintillation crystal
ActiveCN103849933BAchieve oxygen balanceImprove crystal qualityPolycrystalline material growthAfter-treatment detailsLutetiumScintillation crystals
The invention relates to a method for growing a Ce<3+> doped lutetium yttrium silicate scintillation crystal. The method is characterized by comprising the concrete steps of (1) weighing and mixing; (2) pressing and sintering; (3) heating for fusing; (4) seeding; (5) high temperature oxygen diffusion; (6) necking, shoulder extending and keeping constant-diameter; (7) cooling; (8) in-situ annealing. According to the invention, a crystal growth furnace is properly modified, so that high-temperature oxygen diffusion and in-situ annealing at a reducing atmosphere can be simultaneously realized, oxygen balance can also be realized, and furthermore, the crystal is not easy to crack and become yellow and the good crystal quality is kept. The success rate for growing the crystal is increased from 40-45% to 75-85%.
Owner:SHANGHAI ADVANCED SILICON TECH CO LTD
Detonation preparation method for alumina-adhered diamond nano composite particle material
InactiveCN104028171AGood particle dispersionEasy to prepareOther chemical processesUltra-high pressure processesDetonationAluminium hydroxide
The invention discloses a detonation preparation method for an alumina-adhered diamond nano composite particle material, belonging to the technical field of explosion processing. The method is characterized in that the alumina-adhered diamond nano composite particle material is prepared by using a detonation method; when the surfaces of diamond particles are boronized and the diamond particles are mixed with an aluminum salt solution, the particles are subjected to ultrasonic or homogenizing dispersion, the calcination time of the boronized particles is 30 minutes to 1 hour, and the temperature is 400-450 DEG C. Aluminum nitrate, aluminum hydroxide or sodium metaaluminate is adopted as aluminum salt; a negative oxygen balance explosive such as RDX, PETN (pentaerythritol tetranitrate) and an emulsion explosive is properly adopted as a detonation explosive; in an explosion container, water or a series of non-oxidation gas such as carbon dioxide and nitrogen difficultly reacting with oxygen is adopted as a protective medium. The method has the effects and the advantages that the particle dispersion is good; the size of the particles is 50-200nm; the thickness of a coating layer is about 1-2nm; the preparation method is simple and low in cost. The alumina-adhered diamond nano composite particle material is applicable to being directly used as a polishing abrasive material of gem, a silicon wafer and an LED (light emitting diode) substrate, and can be deeply processed into various diamond grinding tools.
Owner:DALIAN UNIV OF TECH
Electrolysis device for producing hydrogen through water electrolysis and method of electrolysis device
InactiveCN106801232AMeet sealing requirementsSolve the problem of insufficient sealing technologyCellsHydrogenElectrolysis
The invention provides an electrolysis device for producing hydrogen through water electrolysis and a method of the electrolysis device. The electrolysis device comprises an electrolytic tank, wherein a cylinder is arranged outside the electrolytic tank in a sleeving manner; an oxygen discharging pipe is arranged in a cavity between the cylinder and the electrolytic tank; the electrolytic tank is connected with a hydrogen discharging pipe; hydrogen produced from the electrolytic tank is discharged through the hydrogen discharging pipe and directly enters a use workshop; oxygen produced from the electrolytic tank enters a steam-water separator through an oxygen balance pipe I, so as to remove steams and water from the oxygen; the water-removed oxygen enters the cavity between the cylinder and the electrolytic tank through an oxygen balance pipe II; finally, the oxygen is discharged through the oxygen discharging pipe. The electrolysis device for producing the hydrogen through the water electrolysis solves the problem of defects of a sealing technology of the existing electrolytic tank for producing the hydrogen through the water electrolysis through a self-balance structure and a mode of taking the oxygen as balance gas.
Owner:SHAANXI HUAQIN NEW ENERGY TECH CO LTD
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