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Hydraulic pulse well drilling equipment
InactiveCN1786409AReduce pinch effectReduced crushing strengthLiquid/gas jet drillingVibration drillingImpellerStator
The invention discloses petroleum industry well drilling working underground tool. It is made up of joint, hanging plate, end cap, shunting rebel tool, impeller, shaft, cover, gland, rotor, stator, identity, and ball bearing. The invention is connected to the up of the drilling bit. While drilling, part of the drilling fluid drive impeller to make the rotor rotate by shunting rebel tool. When the flow passage of the rotor and stator are sealed, its area is the minimum. When the flow passages are circulated, the area is the maximum. High pressure pulsation jetting is formed at lower reaches to improve drilling speed. The other part of the drill fluid pass through the shunting hole to prevent drilling fluid from interrupting caused by impeller blocking to reduce tool application risk.
Owner:SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
Separable floating body device used for recycling AUV (Autonomous Underwater Vehicle)
ActiveCN104648635AReduce riskEnhance resilience and vitalityUnderwater vesselsUnderwater equipmentEngineeringUnderwater vehicle
The invention relates to the field of recycling of autonomous underwater vehicles (short for AUV) and particularly relates to a separable floating body device used for recycling the AUV. The separable floating body device comprises a separable floating force block, a traction rope, an underwater electromagnet, emergency throwing ballast iron and a framework, wherein the separable floating force block is fixedly arranged on an end plate of the framework through an elastic tensioning rope arranged on the separable floating force block; the underwater electromagnet is arranged in the framework and fixedly arranged on a second supporting plate of the framework; the emergency throwing ballast iron is arranged outside the framework and is adsorbed on the underwater electromagnet when the underwater electromagnet is electrified to generate magnetism; a flow guide floating force material is arranged outside the framework; a groove for containing the emergency throwing ballast iron is formed in the flow guide floating force material on the outer side of the second supporting plate of the framework; the framework is internally provided with a rope hub for winding the traction rope; and one end of the traction rope is fixedly arranged on a hub shaft of the rope hub and the other end of the traction rope is connected with the separable floating force block. According to the separable floating body device, people can manually recycle the AUV on a small boat without transferring the small boat to the lower level, and the safety of people and equipment is guaranteed.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Method and device for issuing messages by message queue
InactiveCN104753769AAvoid delayEasy to handleData switching networksMessage queueReal-time computing
Owner:XINYU XINGBANG INFORMATION IND
Machine learning model selection method
PendingCN110796270AImprove versatilityHigh Engineering AvailabilityKernel methodsEvaluation resultSi model
The invention discloses a machine learning model selection method, mainly comprising the steps of model setting, training testing, model evaluation, model selection, prediction reasoning and model monitoring. The adopted algorithm model is selected through the model selection strategy and the model evaluation result, and the model selection process is decomposed into multiple aspects such as resource consumption, performance and business risks, and necessary and key processes involved in machine learning model selection are covered more widely, and the machine learning model selection method can be suitable for selection of various types of machine learning algorithm models and is high in universality. Meanwhile, multiple dimensions such as resource consumption, performance and business risk are adopted as the basis of model selection, and the engineering cost and the business risk are introduced into the model selection process besides the conventional model performance, and the highengineering availability and the low application risk of the algorithm model are effectively ensured, and the practical value is high.
Owner:深圳市乾数科技有限公司
Audio-video information cross-network access and control method
InactiveCN102510472AGuaranteed real-timeReduce application riskClosed circuit television systemsTransmissionVideo monitoringRs 232 interface
The invention discloses an audio-video information cross-network access and control method which comprises the following steps: audio-video state information of an outer network audio-video monitoring system is obtained by an outer network client in real time and sent to an inner network client via an RS (remote sensing) 232 interface; a control order is sent to the outer network client by the inner network client through the RS232 interface, obtained by the outer network client and sent to the outer network audio-video monitoring system; corresponding digital audio-video information selected by the inner network client is sent to an outer network decoder by the outer network audio-video monitoring system; the digital audio-video information is transformed to the simulated audio-video information by the outer network decoder, output to an inner network decoder and transformed to digital audio-video information; the selected corresponding audio-video information is obtained by the inner network client through the inner network decoder, thus the inner network access and control of the outer network audio-video information is realized. According to the method disclosed by the invention, the relative safety management regulation is completely fitted, the safety of an inner network is protected at the maximum degree and the application risk of the inner network is greatly reduced.
Owner:SHENYANG FIRE RES INST OF THE MIN OF PUBLIC SECURITY
Dynamic security detection method for Kubernetes cloud native application
ActiveCN110276199AReduce application riskEnsure safetyPlatform integrity maintainanceProgram loading/initiatingResource depletionMirror image
The invention discloses a dynamic security detection method for a Kubernetes cloud native application, and belongs to the technical field of cloud native security, and comprises the following steps: scanning the state of a running Chart application, identifying the running resource type, the mirror image type and the resource use condition of the Chart application, monitoring, analyzing and auditing the behavior of the Chart application, analyzing a malicious mirror image, a resource depletion attack, suspicious connection and other security problems. According to the method, various resource types of the Kubernetes Chartt application are dynamically and safely detected, the operation condition of the Kubernetes Chart application is identified and determined, and different resources are scanned and monitored by loading different plug-ins, so that the system security is ensured.
Owner:中国东盟信息港股份有限公司
Low-temperature-resistant preparation composition for production of cotton, preparation method and using method of low-temperature-resistant preparation composition
ActiveCN105712787AReduce accumulationMitigate peroxidation damageAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersGrowth plantPlant nutrition
The invention discloses a low-temperature-resistant preparation composition for production of cotton, a preparation method and a using method of the low-temperature-resistant preparation composition. The low-temperature-resistant preparation composition for production of the cotton comprises a preparation I and a preparation II; the preparation I comprises a low-temperature-resistant nutrient substance, a plant nutrition promoter, an antifreezing agent, a surfactant and water; and the preparation II comprises a low-temperature-resistant nutrient substance, a plant nutrition promoter, a plant growth regulator, a surfactant and water. The preparation I is mainly used at a seedling stage, and the preparation II is mainly used at blossoming and boll-forming stages. The preparations can well prevent and retard influence and harm of low temperature to production of the cotton, solve the problem of cotton plant growth retarding, cut production and the like caused by low temperature damage in a main cotton production region, guarantee production effectiveness and stable income of cotton planters, are simple in preparation process, easy and convenient to use, environment-friendly and obvious in effect, and can be widely popularized and used in cotton regions.
Owner:王翔
System for reducing carbon emission by blending combustion of ammonia gas and control method
PendingCN113405116AImprove combustion characteristicsEmission reductionGaseous fuel feeder/distributionDirect carbon-dioxide mitigationThermodynamicsCombustor
The invention discloses a system for reducing carbon emission by blending combustion of ammonia gas and a control method. The system comprises an ammonia gas source, a gasification device, a hydrogen preparation device and a hearth; an ammonia gas nozzle and an ammonia-hydrogen mixed burner are arranged above the over fire air of the hearth; and the ammonia gas source is connected with the input end of the gasification device, the output end of the gasification device is divided into three paths of output, the first path of output is connected with the input end of the hydrogen preparation device, the second path of output is connected with the output end of the hydrogen preparation device and the ammonia-hydrogen mixed burner, and the third path of output is connected with the ammonia gas nozzle on the hearth. The combustion characteristic of ammonia gas is improved by doping hydrogen, the hydrogen is doped in a direct current mode, the investment cost is reduced, the application risk is reduced, emission of CO2 is reduced by doping ammonia gas into an active-service coal-fired unit to replace fire coal with the same heat value and replacing carbon-containing fuel with non-carbon fuel; and meanwhile, active-service thermal power unit resources are fully utilized, so that the survival status of a thermal power generating unit is improved.
Owner:XIAN THERMAL POWER RES INST CO LTD
Chemical co-production equipment and method for phosphorus and coal
PendingCN107739025AUnavailable solutionImprove utilization efficiencyGasification processes detailsPhosphorus compoundsSyngasSlag
The invention discloses chemical co-production equipment and a method for phosphorus and coal. The equipment is characterized in that high-temperature crude synthesis gas produced in a coal gasifyingreaction is taken as a heat source for producing yellow phosphorus, so that the problem that heat at a high-temperature segment of the crude synthesis gas produced in the coal gasifying reaction cannot be used is solved; moreover, heat can be supplied to yellow phosphorus production, and the energy utilization rate is high; meanwhile, a reaction product CO produced during yellow phosphorus production and the crude synthesis gas are taken as raw materials of synthesis ammonia, so that the yield of liquid ammonia is increased, and a production process is efficient and contributes to energy saving and environment protection. The chemical co-production equipment for the phosphorus and coal comprises a raw material storing-transporting unit, a grinding unit, a pelletizing-drying unit, a reducing reaction unit, a slag cooling unit, a separating-washing unit, an air separating unit, a gasifying unit, a converting unit, a purifying unit and a synthesizing unit. The chemical co-production equipment and method have the advantages of simplified process flow, technically mature in units, energy saving, environmental friendliness and low application risk, and a beneficial technical option is provided for phosphorus and coal chemical complementation in various fields.
Owner:BEIJING AEROSPACE MWAY TECH CO LTD
Golden finger connector and mis-plug prevention device
InactiveCN102723642APrevent mis-insertionReduce application riskCoupling device detailsElectrical and Electronics engineering
Owner:HUAWEI TECH CO LTD
Startup preparation method of hydrotreating device
ActiveCN111378479AAvoid pollutionAvoid obstructionHydrotreatment operations starting-upPtru catalystAcyl group
The invention discloses a startup preparation method of a hydrotreating device. The method is used for the starting process of the ex-situ prevulcanization type hydrotreating catalyst containing the thionyl compound. Especially in the airtight process, the constant-pressure heating section, the constant-pressure constant-temperature section and the constant-pressure heating section are arranged, so heat generated by hydrogenolysis of sulfide and / or auxiliaries in the airtight starting process is reasonably distributed and controlled, the phenomenon of centralized heat release is avoided, and the risks of over-temperature and temperature runaway are reduced. The method provided by the invention thoroughly solves the obstacles in the industrial application process of the catalyst, not only improves the use activity of the catalyst, but also eliminates the hidden danger of environmental protection caused by the leakage of the vulcanizing agent, and has a very good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
Equipment and method for producing yellow phosphorus from middle-low-grade phosphate ore
PendingCN107686099ASolving underutilizedImprove utilization efficiencyChemical industryCement productionPhosphateFlue gas
The invention discloses equipment and a method for producing yellow phosphorus from middle-low-grade phosphate ore. The yellow phosphorus production equipment can be used for preparing the yellow phosphorus from the middle-low-grade phosphate ore, further improves an energy utilization efficiency and effectively controls pollutant generation at the same time. The yellow phosphorus production equipment comprise a grinding unit, a ball making and drying unit, a reduction reaction unit, a furnace slag cooling unit and a separating and purifying unit, wherein the grinding unit comprises a grindingdevice and an air conveying device; the ball making and drying unit comprises a mixer, a ball making machine and a drying machine; the reduction reaction unit comprises a high temperature flue gas generation furnace and a reaction phosphorus furnace; the separating and purifying unit is communicated with the reaction phosphorus furnace, the high temperature flue gas generation furnace and the furnace slag cooling unit; the furnace slag cooling unit is communicated with the ball making and drying unit. The invention further discloses the method for producing the yellow phosphorus from the middle-low-grade phosphorus ore. According to the equipment, heat contained in CO and high temperature furnace slag is comprehensively utilized, and a part of fuel is supplemented at the same time, so that the energy utilization efficiency is improved.
Owner:BEIJING AEROSPACE MWAY TECH CO LTD
A kind of biocompatible bile acid chelating agent and its preparation method and application
ActiveCN104086789BGood biocompatibilityReduce application riskOrganic active ingredientsMetabolism disorderBiocompatibility TestingBile acid
The invention relates to a biocompatible bile acid sequestrant and its preparation method and application. The preparation method steps are as follows: (1) N-hexylallylamine is added dropwise in hydrochloric acid to obtain N-hexylallylamine hydrochloride; (2) N-hexylallylamine hydrochloride aqueous solution and Allylamine hydrochloride aqueous solution is mixed uniformly, adding initiator, polymerization reaction, obtains polymer precursor; (3) methyl-α-D-glucopyranoside is dissolved in deionized water, adds oxidizing agent, avoids photoreaction to prepare a dialdehyde crosslinking agent; (4) adding a dialdehyde crosslinking agent solution to the polymer precursor aqueous solution, stirring and mixing, and standing at room temperature for reaction to prepare a biocompatible bile acid chelating agent. In the preparation method of the present invention, the cross-linking agent only uses the biocompatible dialdehyde cross-linking agent obtained by oxidizing glycosides. In addition, no other toxic cross-linking agents are used, which has good biocompatibility and reduces risks of in vivo application.
Owner:山东慕尔斯新材料科技有限公司
Detection method and apparatus for exception processing mechanism of diskette array system
InactiveCN105700976AImprove job stabilityReduce application riskDetecting faulty hardware by configuration testFunctional testingProcess mechanismDisk array
Embodiments of the present invention provide a detection method and apparatus for an exception processing mechanism of a diskette array system. The method comprises: selecting an operating disk in a diskette array system as a current simulation fault disk, and simulating the current simulation fault disk entering a fault state; removing the current simulation fault disk out of the diskette array system, connecting a standby disk into a slot of the current simulation fault disk, and reconstructing a diskette array system; and determining whether the reconstructed diskette array system can normally operate, and if no, determining that a diskette array exception processing mechanism is abnormal, and if yes, selecting another operating disk as a next simulation fault disk. It can be known previously whether the diskette array system can normally operate after replacing a fault operating disk with a standby disk, so that operating stability of the diskette array system is improved, and the application risk is reduced.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND
Information processing method and apparatus and computer storage medium
ActiveCN109445904AAvoid modificationReduce application riskSoftware simulation/interpretation/emulationInformation processingOpen source
The embodiment of the invention discloses an information processing method, which comprises the following steps of obtaining the first information for an open source application container engine (docker), wherein the first information is sent by a Kubernetes container management platform, and the first information is a first instruction or a first instruction parameter; reassembling the first information according to a preset information assembling rule to obtain a second information; adapting the second information to the service of the Kubernetes container management platform; sending the second information to the docker. The embodiment of the invention also discloses an information processing device and a computer storage medium.
Owner:MIGU CO LTD +1
Frozen wall development condition judgment and early warning method based on thermo-acoustic coupling algorithm
PendingCN111680403AReduce application riskAccurate judgmentGeometric CADDesign optimisation/simulationEarly predictionAcoustics
The invention discloses a frozen wall development condition judgment and early warning method based on a thermo-acoustic coupling algorithm, and the method comprises the steps: building an indoor physical test model of two-hole freezing of a water-rich sand layer at a freezing construction preparation stage, and drawing a wave velocity-temperature relation curve; utilizing the wave velocity-temperature relation curve to establish a wave velocity-temperature nonlinear relation expression; obtaining an artificial frozen soil thermo-acoustic coupling algorithm considering phase change; utilizinga thermo-acoustic coupling algorithm to solve the average wave velocity of the designed frozen wall development; calculating a quantitative relationship among different freezing frontal surfaces, non-crossed circle distances and the calculated average wave velocity; and judging and early warning the development condition of the frozen wall by comparing the actually measured and calculated frozen frontal surface and non-crossed circle distance. The method can be used for judging and early warning the abnormal development condition of the frozen wall between any two holes by utilizing the standard, and processing in time. And early prediction, process monitoring and effect evaluation of the intersection condition of the frozen wall can be realized.
Owner:BEIJING CHINA COAL MINE ENG CO LTD
High-suspension mineral gel with low heavy metal and cristobalite and preparation method
ActiveCN109126646AReduce application riskGel preparationColloidal chemistry detailsClay mineralsSodium Bentonite
The invention discloses high-suspension mineral gel with low heavy metal and cristobalite. The mineral gel is prepared from, by weight, 100 parts of clay mineral, 2-8 parts of inorganic base and 0.5-2parts of sodium citrate and sodium pyrophosphate, wherein the clay mineral is selected from one or more of attapulgite clay, bentonite, sepiolite, halloysite and montmorillonite clay. The preparationmethod includes steps: grinding the clay mineral, adding inorganic base aqueous solution, mixing and extruding into sheets; covering with a film, keeping moisture to pile up for more than 10 days, adding water, and beating into emulsion; dewatering after filtering through a vibrating screen, adding water and diluted acid into a cake material to adjust pH to 3-4, and ultrasonically dispersing; adding a mixture of sodium citrate and sodium pyrophosphate, ultrasonically dispersing, adding water and alkali to adjust pH to 7-8, dewatering, drying and grinding to obtain the high-suspension mineralgel. By cristobalite removal, heavy metal removal and electric charge regulation for gel preparation in sequence, the high-suspension mineral gel is applicable to fields of medicines, food, daily chemicals and the like.
Owner:江苏圣一纳米科技有限公司
Programmable signal processing module based on SiP
PendingCN113126878AHighly integratedImprove performanceArchitecture with single central processing unitInput/output processes for data processingComputer hardwareSystem integration
A programmable signal processing module based on SiP comprises an analog-to-digital conversion unit used for converting collected analog quantity into digital quantity to be calculated and processed by a core processing chip, and the analog-to-digital conversion unit comprises a high-speed parallel ADC chip and a low-speed serial ADC chip; a core processing chip which comprises an FPGA chip and is used for completing the generation of a time sequence signal and the design of a closed-loop algorithm, calculating and processing the digital quantity converted by the analog-to-digital conversion unit and inputting the processed digital quantity into the digital-to-analog conversion unit; a digital-to-analog conversion unit which comprises a high-speed parallel DAC chip and is used for converting the digital quantity input by the core processing chip into analog quantity and outputting the analog quantity outwards; and a refreshing chip which is used for refreshing the core processing chip in real time when the single event upset occurs on the core processing chip so as to enable the core processing chip to quickly recover operation. System integration is achieved through the SIP technology, an FPGA + ADC + DAC architecture is adopted, the system is high in flexibility and integration degree, and miniaturization is achieved.
Owner:北京轩宇空间科技有限公司
Start-up preparation method of hydrocracking unit
ActiveCN111378476ACan exert hydrogenation catalytic propertiesAvoid pollutionHydrotreatment operations starting-upThermodynamicsPtru catalyst
The invention discloses a start-up preparation method of a hydrocracking unit. The method is used for the start-up process of an ex-situ presulfurization type hydrotreating catalyst containing a sulfinyl compound and a small pore volume hydrocracking catalyst. Particularly, in the airtight process, a constant-pressure heating section, a constant-pressure constant-temperature section and a constant-pressure heating section are arranged, so heat generated by hydrogenolysis of sulfide and / or auxiliaries in the airtight starting process is reasonably distributed, controlled and stably released, the phenomenon of centralized heat release is avoided, and the risks of over-temperature and temperature runaway are reduced. According to the method, obstacles in the industrial application process ofthe combined catalyst are thoroughly solved, the use activity of the catalyst is improved, meanwhile, the environmental protection hidden danger of leakage of a vulcanizing agent is eliminated, and the method has a good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
Preparation method for start-up of hydro-upgrading unit
ActiveCN111378480BCan exert hydrogenation catalytic propertiesExert hydrogenation catalytic propertiesHydrotreatment operations starting-upPtru catalystPhysical chemistry
The invention discloses a preparation method for starting a hydrogenation reforming device. The method is aimed at the start-up process of the external presulfided hydrofining catalyst containing dihydroxy compounds and the hydrogenation upgrading catalyst with large pore volume, especially the airtight process, and the constant pressure and temperature rise section, the constant pressure and temperature rise section and the constant pressure and temperature rise are set. In the section, the heat generated by the hydrogenolysis of sulfides and / or additives during the airtight start-up process is reasonably distributed, controlled and released stably, avoiding the occurrence of concentrated exothermic phenomena, and reducing the risk of overheating and overheating. The method of the invention completely solves the obstacles in the industrial application process of the combined catalyst, not only improves the use activity of the catalyst, but also eliminates the hidden danger of environmental protection caused by leakage of the vulcanizing agent, and has good application prospects.
Owner:CHINA PETROLEUM & CHEM CORP +1
A kind of start-up preparation method of hydrotreating unit
ActiveCN111378479BAvoid pollutionAvoid obstructionHydrotreatment operations starting-upPtru catalystThermodynamics
The invention discloses a start-up preparation method for a hydrotreating device. The method is aimed at the start-up process, especially the air-tight process, of an off-site pre-sulfided hydrotreating catalyst containing sulfinyl compounds. By setting a constant pressure heating section, a constant pressure constant temperature section and a constant pressure heating section, the gas-tight start-up process is The heat generated by the hydrogenolysis of sulfide and / or auxiliaries is reasonably distributed and controlled, which avoids the occurrence of concentrated heat release and reduces the risk of over-temperature and overheating. The method of the invention completely solves the obstacles in the industrial application process of the catalyst, not only improves the use activity of the catalyst, but also eliminates the environmental protection hidden danger of leakage of the vulcanizing agent, and has a good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
Anti-low temperature preparation composition for cotton production, preparation method and application method thereof
ActiveCN105712787BReduce accumulationMitigate peroxidation damageAlkali orthophosphate fertiliserAmmonium orthophosphate fertilisersGrowth plantPlant nutrition
Owner:王翔
Start-up activation preparation method of hydrocracking unit
ActiveCN111378482ACan exert hydrogenation catalytic propertiesAvoid pollutionHydrotreatment operations starting-upThermodynamicsPtru catalyst
The invention discloses a start-up preparation method of a hydrocracking unit. According to the method, for the start-up process, particularly the airtight process of an ex-situ prevulcanization typehydrotreating catalyst containing a carboxyl compound and a large-pore-volume hydrocracking catalyst, a constant-pressure heating section, a constant-pressure constant-temperature section and a constant-pressure heating section are arranged, so that heat generated by hydrogenolysis of sulfide and / or auxiliaries in the airtight start-up process is reasonably distributed, controlled and stably released, the phenomenon of centralized heat release is avoided, and the risks of over-temperature and temperature runaway are reduced. By the method, obstacles in the industrial application process of thecombined catalysts are thoroughly solved, the use activity of the catalysts is improved, and the environmental protection hidden danger of leakage of a vulcanizing agent is eliminated. The method hasa good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
A detachable floating body device for AUV recovery
ActiveCN104648635BReduce application riskImprove adaptabilityUnderwater vesselsUnderwater equipmentMarine engineeringBallast
The invention relates to the field of recycling of autonomous underwater vehicles (short for AUV) and particularly relates to a separable floating body device used for recycling the AUV. The separable floating body device comprises a separable floating force block, a traction rope, an underwater electromagnet, emergency throwing ballast iron and a framework, wherein the separable floating force block is fixedly arranged on an end plate of the framework through an elastic tensioning rope arranged on the separable floating force block; the underwater electromagnet is arranged in the framework and fixedly arranged on a second supporting plate of the framework; the emergency throwing ballast iron is arranged outside the framework and is adsorbed on the underwater electromagnet when the underwater electromagnet is electrified to generate magnetism; a flow guide floating force material is arranged outside the framework; a groove for containing the emergency throwing ballast iron is formed in the flow guide floating force material on the outer side of the second supporting plate of the framework; the framework is internally provided with a rope hub for winding the traction rope; and one end of the traction rope is fixedly arranged on a hub shaft of the rope hub and the other end of the traction rope is connected with the separable floating force block. According to the separable floating body device, people can manually recycle the AUV on a small boat without transferring the small boat to the lower level, and the safety of people and equipment is guaranteed.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Method for utilizing sludge from municipal sewage treatment plant as forestry soil matrix
InactiveCN102515901BPromote growthShortened growth cycleBio-organic fraction processingClimate change adaptationHigh concentrationForest industry
The invention discloses a method for utilizing sludge from a municipal sewage treatment plant as forestry soil matrix and belongs to the technical field of environmental protection. The sludge is utilized according to a composting method; the nutrition constituents in the sludge are fully utilized; the growth of trees is accelerated; the growth cycle of the wood is shortened; the yield of wood is increased; the harmful matters in the sludge do not participate in food chain cycle; and the application risk is smaller. The garden plants can accept high-concentration heavy metal, the poison symptom is difficult to occur, and the sludge is safer than vegetables and crops after the compost is applied to forest land, so that the utilization of the sludge for composting the forest land is wide in developing space.
Owner:南京市生态环境保护科学研究院
A dual-beam antenna
ActiveCN103367932BSmall structureReduce application riskPolarised antenna unit combinationsDual beamRadiating element
Owner:WUHAN HONGXIN TELECOMM TECH CO LTD
A kind of start-up preparation method of hydrorefining unit
ActiveCN111378473BAvoid pollutionAvoid obstructionHydrocarbon oils treatmentRefining to eliminate hetero atomsPtru catalystPhysical chemistry
Owner:CHINA PETROLEUM & CHEM CORP +1
Startup preparation method for hydrotreating device
ActiveCN111378478AAvoid pollutionAvoid obstructionHydrotreatment operations starting-upCarboxyl radicalPtru catalyst
The invention discloses a startup preparation method of a hydrotreating device. The method aims at the starting process of the ex-situ prevulcanization type hydrotreating catalyst containing the carboxyl compound. Particularly, in the airtight process, a constant-pressure heating section, a constant-pressure constant-temperature section and a constant-pressure heating section are arranged, so heatgenerated by hydrogenolysis of sulfide and / or auxiliaries in the airtight starting process is reasonably distributed and controlled, the phenomenon of centralized heat release is avoided, and the risks of over-temperature and temperature runaway are reduced. According to the method, obstacles in the industrial application process of the catalyst are thoroughly solved, the use activity of the catalyst is improved, meanwhile, the environment-friendly hidden danger of leakage of a vulcanizing agent is eliminated, and the method has a good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
Highly suspended mineral gel low in heavy metals and cristobalite and preparation method thereof
ActiveCN109126646BReduce application riskGel preparationColloidal chemistry detailsHalloysiteClay minerals
The invention discloses a high-suspension mineral gel low in heavy metals and cristobalite, comprising the following components by weight: 100 parts of clay minerals, 2-8 parts of inorganic alkali, 0.5-2 parts of sodium citrate and sodium pyrophosphate; The clay minerals are selected from one or more of attapulgite clay, bentonite, sepiolite, halloysite and imonite. The preparation method comprises the following steps: pulverizing and grinding clay mineral raw ore, adding an aqueous solution of inorganic alkali to mix, extruding into flakes; covering with a film, keeping the moisture and stacking for more than 10 days, adding water and beating to form an emulsion; passing through a vibrating sieve After dehydration, add water and dilute acid to the cake material to adjust the pH to 3-4, and then ultrasonically disperse; add a mixture of sodium citrate and sodium pyrophosphate and continue to ultrasonically disperse, then add water and alkali to adjust the pH to 7-8, then dehydrate and dry 1. Obtain the high-suspension mineral gel after crushing. The invention has the characteristics of firstly removing cristobalite, then removing heavy metals, and then adjusting charge to prepare gel, and can be applied to the fields of medicine, food, daily chemical and the like.
Owner:江苏圣一纳米科技有限公司
Preparation method for start-up of hydrotreating unit
ActiveCN111378478BAvoid pollutionAvoid obstructionHydrotreatment operations starting-upCarboxyl radicalPtru catalyst
The invention discloses a start-up preparation method of a hydrotreating device. The method is aimed at the start-up process of the pre-sulfurized hydrotreating catalyst outside the device containing carboxyl compounds, especially the airtight process. A constant pressure and temperature rising section, a constant pressure and constant temperature section and a constant pressure and temperature rising section are set up, and the airtight start-up process sulfide and / or the heat generated by the hydrogenolysis of additives is reasonably distributed and controlled to avoid the occurrence of concentrated exothermic phenomena and reduce the risk of overheating and overheating. The method completely solves the obstacles in the industrial application process of the catalyst, not only improves the activity of the catalyst, but also eliminates the hidden danger of environmental protection of the vulcanizing agent leakage, and has a good application prospect.
Owner:CHINA PETROLEUM & CHEM CORP +1
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