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Preparation method of degradable breathable antibacterial gloves
ActiveCN119505552AImprove antibacterial propertiesImprove breathabilityGlovesProtective garmentPolymer scienceVulcanization
The invention relates to the technical field of preparation of antibacterial gloves, in particular to a preparation method of degradable breathable antibacterial gloves, and an emulsion formula of the degradable breathable antibacterial gloves comprises the following components in parts by weight: 100 parts of nitrile rubber modified polylactic acid, 5-10 parts of modified antibacterial filler, 1-3 parts of an anti-aging agent, 0.5-3 parts of a vulcanizing agent, 0.3-2 parts of a vulcanization accelerator and 0.5-1 part of a foaming agent. Through a high-molecular compound composition system, nitrile rubber modified polylactic acid, modified antibacterial filler and other components are compounded to prepare the glove with controllable degradability, lasting antibacterial property and good air permeability; on the basis of covalent binding of silicon dioxide loaded with antibacterial groups and modified chitosan, the synergistic antibacterial effect of the modified antibacterial filler is achieved, and therefore the antibacterial performance of the glove is improved.
Owner:SHANDONG INTE MEDICAL TECH CO LTD
Test method of USB press-fit jig and USB press-fit jig
ActiveCN119470460Ascan accuratelyImprove detection efficiencyAnalysis by thermal excitationWork holdersLaser-induced breakdown spectroscopyTrend prediction
The invention discloses a test method of a USB press-fit jig and the USB press-fit jig. The method comprises the following steps: carrying out preliminary detection on a predetermined area of the press-fit jig according to operation data of the press-fit jig; determining a target detection area according to the preliminary detection data; performing laser-induced breakdown spectroscopy scanning on the target detection area to obtain spectral data; carrying out fusion processing on the preliminary detection data and the spectral data to generate pollution characteristic data; performing time sequence analysis according to the pollution characteristic data and the historical pollution data to obtain pollution trend data; performing multi-physics field coupling analysis on the USB interface performance based on the pollution characteristic data and the pollution trend data to obtain a performance influence evaluation result; and formulating and executing a differential cleaning strategy according to an evaluation result, and cleaning the pressing jig. According to the technical scheme, efficient detection and trend prediction of jig surface pollution are achieved, the cleaning strategy is dynamically optimized, and the jig performance and the long-term reliability of the USB interface can be effectively improved.
Owner:SHENZHEN OSCOO TECH
Small-opening scouring-resistant hard sealing ball valve
ActiveCN222559244Ureduce washoutExtended service lifePlug valvesOperating means/releasing devices for valvesSolid particleSolid content
The utility model relates to the technical field of sealing ball valves, and discloses a small-opening scouring-resistant hard sealing ball valve which comprises a valve body, a connecting column, a nut, a wrench, a triangular plate, a limiting column, a sealing connector, a lower valve rod, a lower bearing, a valve seat, a sealing ring and a second spring. Connecting columns are arranged on the four right-angle sides of the valve body in the same direction, the ball body is a core component for controlling fluid circulation, and passing or blocking of fluid is adjusted through a through hole in the ball body. According to the small-opening-degree scouring-resistant hard sealing ball valve, operation is allowed in a partial opening state through design, the scouring effect of solid particles in fluid on the interior of the valve is greatly reduced through the small-opening-degree characteristic, and therefore the service life of the valve is effectively prolonged, and the small-opening-degree scouring-resistant hard sealing ball valve is particularly important when the fluid flowing at a high speed or with the high solid content is treated; the small-opening operation also allows finer flow control, provides more adjustment flexibility, and meets specific process requirements.
Owner:HENAN KAI VALVE VALVE CO LTD
Image retrieval method and device based on multi-modal mixed index, equipment and storage medium
PendingCN119441519AEfficient integrationImprove image retrieval qualityStill image data indexingStill image data queryingSearch wordsImage extraction
The embodiment of the invention provides an image retrieval method based on a multi-modal mixed index, which comprises the following steps: according to an image description inverted index and an image tag inverted index, recall by utilizing an expanded search term to obtain an image description recall result and an image tag recall result; according to the image content feature index, recall is carried out through the expanded search word multi-modal features, and a multi-modal recall result is obtained; according to the image description feature index, carrying out recall by utilizing the expanded search word text features to obtain a text recall result; extracting reordering features of the search terms to obtain search term reordering features; reordering features of candidate images in the multiple recall results are extracted, and recall result reordering features are obtained; according to the search word reordering features and the recall result reordering features, the multiple recall results are preliminarily ordered to obtain a reordering result, the multiple recall results and the reordering result are combined and ordered again, and an ordered search result is obtained.
Owner:特赞(上海)信息科技有限公司
Phosphonic acid-benzenesulfonic acid double modified carbon microspheres, and preparation method and application thereof
The present application relates to a kind of phosphonic acid-benzenesulfonic acid double modified carbon microspheres and its preparation method and application, belong to oil field chemical field.The method includes: S1 with biomass as raw material preparation original carbon microspheres;S2 original carbon microspheres are pre-oxidized and activated, obtain activated carbon microspheres;S3 activated carbon microspheres are phosphonated grafting reaction;S4 last perform sulfonic group grafting reaction.The present application also provides the phosphonic acid-benzenesulfonic acid double modified carbon microspheres prepared by this method, and the application of the phosphonic acid-benzenesulfonic acid double modified carbon microspheres in the preparation of water-based drilling fluid.In this phosphonic acid-benzenesulfonic acid double modified carbon microspheres, phosphonic acid group and benzenesulfonic acid group are introduced into the surface of carbon microspheres by stable covalent interaction, not easy to fall off in high temperature and high salt environment, can improve the stability of material in high temperature condition, to ensure that modified carbon microspheres in downhole complex working condition Long-term effect, make drilling fluid system can simultaneously withstand high temperature and high calcium ion double test.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Steel grid wall structure provided with energy consumption component
PendingCN121952252AThe damage pattern is clearConcentrated and efficient energy consumptionWallsProtective buildings/sheltersClassical mechanicsMechanical engineering
The invention is suitable for the field of structural walls, and provides a steel grid wall structure provided with an energy dissipation component, which comprises edge frame columns, edge frame beams, grid components, lug plates and low-elasticity high-damping components, the edge frame columns and the edge frame beams are connected to form a frame, the lug plates are arranged on the inner sides of the edge frame columns and the edge frame beams, and the low-elasticity high-damping components are arranged on the inner sides of the edge frame columns and the edge frame beams. And the low-elasticity high-damping component is used for connecting the grid component and is arranged on the grid component. During use, the low-elasticity high-damping component is arranged in the grid component, compared with a traditional steel grid wall structure system, the steel grid wall structure system has the advantages of being clear in damage mode, concentrated in energy consumption and efficient, and effective control over a structural plasticity development area can be achieved.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY
Special mould for protective lining of gasifier process burner
ActiveCN222499046UCompact designReasonable structural designGranular/pulverulent flues gasificationStructural engineeringMechanical engineering
Owner:LUOYANG LIER REFRACTORY MATERIAL
Lens cleaning jig
ActiveCN222568716Uavoid flyingimprove securityFlexible article cleaningStructural engineeringMechanical engineering
Owner:CHONGQING JIAHE PHOTOELECTRIC TECH CO LTD
Method for controlling nitrogen oxides in the initial stage of a circulating fluidized bed boiler
ActiveCN113915610BGuaranteed long-termGuaranteed full loadFluidized bed combustionApparatus for fluidised bed combustionAir preheaterNitrogen oxides
The present application relates to circulating fluidized bed production technical field, more specifically, it relates to a kind of circulating fluidized bed boiler and furnace initial nitrogen oxide control method, the fuel in coal hopper before fluidized bed boiler ignition is coal material and slag block mixture material. Boiler ignition and furnace after the first hour, nitrogen oxide emission value can be controlled in 50mg / Nm 3 NO X Emission value is significantly controlled after optimization, can fully meet the examination requirements of environmental protection electricity price. Reduce the amount of ammonia water, prevent the effect of air preheater ash deposition in tail flue, ensure that the boiler long period, full load safe and stable operation is remarkable.
Owner:HUANENG SUZHOU THERMAL POWER CO LTD
Cantilever retaining wall
The utility model relates to the field of building construction technology, concretely relates to a cantilever type retaining wall, including wall panel, wall toe board and wall heel board, the wall panel vertical setting, wall toe board and wall heel board set up in the both sides of wall panel respectively, wherein, the intersection of wall toe board and wall heel board both with wall panel is equipped with reinforcing body, the reinforcing body is equipped with reinforcing steel bar in, the lower part of wall panel is equipped with tenon, the tenon is set up and inclines to wall heel board, the retaining wall below is equipped with high pressure rotary jet pile and graded broken stone cushion, the graded broken stone cushion is laid in the downside and the inside and outside of wall toe board and wall heel board, a plurality of drainage channels are equipped on the wall panel, the back of drainage channel is equipped with filter back layer, the filter back layer includes the bagged gravel layer and bagged broken stone layer of alternately arranged. Therefore, can prevent the soil body loss and guarantee the smooth drainage more effectively and more durable.
Owner:RANKEN RAILWAY CONSTR GROUP
Integrated method for controlling the converter mouth and its application
PendingCN122235408ASolve the two major technical problems of "serious slag leakage"Guaranteed long-termManufacturing converters
This invention provides an integrated method for controlling the converter furnace mouth and its application. The method includes the following steps: S1. Structural optimization: synchronously performing adaptive adjustments to the water-cooled furnace mouth diameter expansion and furnace hood length to form a smooth charging channel; S2. Charge preparation: preparing magnesia-based supplementary charge with specific particle size and composition; S3. Charge supplementation: when the tapping angle reaches -80° to -85°, directionally supplementing the charge to the critical area of slag impact; S4. Feedback control: dynamically adjusting the supplementation amount based on real-time monitoring of the furnace lining condition; S5. System fine-tuning: performing closed-loop fine-tuning of structural parameters and supplementation strategies based on slag runoff and charging cycle data. This method integrates and solves the technical problems of long main raw material charging cycles and severe slag runoff at the furnace mouth during tapping, effectively improving converter production efficiency, reducing molten steel loss, and improving the production environment.
Owner:HUNAN HUALING LIANYUAN STEEL SPECIAL NEW MATERIAL CO LTD +1
A reverse osmosis membrane antiscalant for high-speed rail and high-alumina wastewater treatment and its preparation method
This invention relates to the field of scale inhibitor production technology, specifically to a reverse osmosis membrane scale inhibitor for high-iron and high-alumina wastewater treatment and its preparation method; it is used to solve the problems of poor scale inhibition performance and fouling deposition on the surface of reverse osmosis membranes by existing scale inhibitors; firstly, aminobutyric acid dihydroxyoxime acid and aminophenyl vinyl-8-hydroxyquinoline are synthesized, and the imine diacetic acid group of the chelating resin is reacted with the amino groups in aminobutyric acid dihydroxyoxime acid and aminophenyl vinyl-8-hydroxyquinoline respectively to obtain a double-modified chelating resin of isohydroxyoxime acid group and 8-hydroxyquinoline group. The isohydroxyoxime acid group forms a stable chelate with iron ions and aluminum ions through a hexadecimal octahedral complex structure, and the 8-hydroxyquinoline group forms a five-membered ring chelate with the nitrogen atom of the quinoline ring through the hydroxyl oxygen, which has the ability to chelate aluminum ions and iron ions, inhibiting the formation of fouling and organic deposits on the membrane surface and keeping the membrane surface clean.
Owner:ANSTEEL LITIAN WATER TREATMENT CO LTD (ANSHAN)
Scale storage device under pump
ActiveCN119491680ASimple structureSolve the fouling problemCleaning apparatusFlexible member pumpsCouplingPumpjack
The invention discloses a dirt storage device under a pump. The device comprises an upper coupling, an upper hoop frame, a first adsorption pipe, a second adsorption pipe, a third adsorption pipe, a fourth adsorption pipe, an outer connecting pipe, a lower hoop frame, a locking ring, a rotational flow joint and a lower joint, the upper coupling and the lower joint are connected to the upper and lower ends of the outer connecting pipe; the upper hoop frame, the first adsorption pipe, the second adsorption pipe, the third adsorption pipe, the fourth adsorption pipe, the outer connecting pipe, the lower hoop frame, the locking ring and the rotational flow joint are arranged in the upper coupling, the outer connecting pipe and the lower connector. The dirt storage device under the pump has the following beneficial effects that the structure is simple, operation is easy and convenient, the dirt storage device is tripped into a shaft along with oil well pump operation, and extra manual maintenance operation is not needed in daily life; the actual problem of scaling of the pump cylinder and the rod pipe can be effectively solved, the requirement for long-period and low-cost production is met, and popularization is easy.
Owner:PETROCHINA CO LTD
Voltage stabilizer, crosslinked polyethylene cable insulation material and preparation method thereof
ActiveCN119613262AGuaranteed long-termImprove DC breakdown strengthPreparation from carboxylic acid halidesPolymer scienceNaphthoquinone
The invention provides a voltage stabilizer, a crosslinked polyethylene cable insulating material and a preparation method thereof, and relates to the technical field of cable insulating materials. The 5-oleoyloxy p-naphthoquinone is used as a voltage stabilizer of the crosslinked polyethylene cable insulating material, so that the energy of high-energy electrons can be consumed more quickly and efficiently; the electrical resistance of the cross-linked polyethylene insulating material is improved, and the problems that a voltage stabilizer added in an existing cross-linked polyethylene insulating material is prone to migration loss in the cable production, storage and use processes, and the action effect of the voltage stabilizer is reduced are solved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Construction linear and anti-overturning control construction method of a type cable tower
PendingCN122280075AImprove overturning abilityReduce the risk of working at heightsControl systemPre stress
This invention discloses a construction method for controlling the construction alignment and overturning resistance of a type A cable tower, comprising the following steps: preliminary preparation; design, verification, and evaluation of the cable tower's anti-overturning combined control system, which includes a cable tower hollow column construction alignment combined control system formed by connecting the tower column stiffening frame system and the anti-overturning system, a multi-level horizontal active cross bracing system, and a prestressed concrete upper crossbeam system. This system resists the overturning force generated by the upward suspended construction of the hollow tower column through the cable tower hollow column construction alignment combined control system. Combined with the synergistic effect of the horizontal active cross bracing system and the prestressed concrete upper crossbeam system, it jointly offsets the inward tilting force generated by the self-weight and construction load of the two limb tower columns during construction, thereby balancing the tower column overturning moment and ensuring that the cable tower alignment, inward tilting force, and tilt angle meet design requirements. The method also includes the following steps: dynamic control analysis of the spatial position of the cable tower column construction segments; construction and dismantling of the cable tower anti-overturning combined control system.
Owner:CCFEB CIVIL ENG
A high-precision filter element, a preparation method and a dust removal device comprising the filter element
ActiveCN118179149Bavoid cloggingImprove water resistanceDispersed particle filtrationTransportation and packagingFiberDust control
The present invention provides a high-precision filter element, a preparation method and a dust removal device comprising the filter element. The preparation method of the high-precision filter element comprises the following steps: S1: preparing SiO 2 Nanofiber membrane; S2: preparation of cross-linking agent; S3: SiO 2 The nanofiber membrane, glass fiber, protein and cross-linking agent are evenly dispersed and placed in a mold for drying to obtain the high-precision filter element; wherein the cross-linking agent is obtained by reacting sodium hyaluronate and chlorosilane. The filter element has high strength, high filtration efficiency, high temperature resistance and good water resistance, and is suitable for use in high-temperature and high-water content flue gas dust removal systems, which can reduce the frequency of equipment cleaning, reduce the energy consumption of the device, and ensure long-term and high-load operation of the device.
Owner:SHANGHAI QITI TECH CO LTD
Preparation method of zero clinker ultra-high performance concrete by using waste incineration bottom ash for gradient grading
ActiveCN118047587BAchieve low-carbon preparationHigh value-added utilizationSolid waste managementBottom ashClinker (waste)
The application discloses a kind of gradient hierarchical utilization garbage incineration bottom ash preparation's zero clinker ultra-high performance concrete and its preparation method, including following weight parts raw materials: garbage incineration bottom ash 660-700 parts;Mineral powder 460-500 parts;Silica fume 35-45 parts;Fine quartz sand 380-420 parts;Activator 370-380 parts;Modifier 15-17 parts;Steel fiber 110-130 parts.Garbage incineration bottom ash includes following particle size and weight parts garbage incineration bottom ash: 8 μm below garbage incineration bottom ash 35-45 parts;8-40 μm garbage incineration bottom ash 75-85 parts;40-150 μm garbage incineration bottom ash 150-170 parts;150-500 μm garbage incineration bottom ash 380-420 parts.The application cooperates and utilizes garbage incineration bottom ash, mineral powder and silica fume, and does not use Portland cement as UHPC cementing material raw material, and UHPC preparation cost and carbon emission are greatly reduced.
Owner:TIANJIN CEMENT IND DESIGN & RES INST CO LTD
Constant-temperature battery structure
ActiveCN222619880UGuaranteed long-termExtended service lifeCell temperature controlBattery isolationThermodynamicsElectrical battery
The utility model discloses a constant-temperature battery structure which comprises a shell and a battery cell module, an inner cavity is formed in the shell, the battery cell module is arranged in the inner cavity, the constant-temperature battery structure further comprises a heating piece and an adapter plate assembly, the battery cell module, the heating piece and the adapter plate assembly are arranged in the inner cavity from top to bottom, and the upper surface of the heating piece is attached to the battery cell module; the battery cell module, the heating piece and the adapter plate assembly are electrically connected, and the adapter plate assembly is used for collecting battery cell voltage information of the battery cell module and controlling on and off of the heating piece; and a glue filling hole is formed in the shell and is communicated with the inner cavity. The heating piece can enable the battery to be in a proper temperature range, so that the service life of the battery is prolonged, and the charging and discharging performance of the battery is improved. The pouring sealant is injected into the inner cavity, can play waterproof, dustproof and insulating roles in the battery, and can also be used as a thermal resistance material to limit thermal diffusion, so that the reliability of the battery maintained in a proper temperature range is further improved.
Owner:ZHEJIANG LUYUAN ELECTRIC VEHICLE
Application of 3-cinnamoyl-4-hydroxycoumarin, cable insulation material and preparation method of cable insulation material
PendingCN119613628AGuaranteed long-termavoid destructionOrganic chemistryPhysical chemistryElectric cables
The invention provides application of 3-cinnamoyl-4-hydroxycoumarin, a cable insulation material and a preparation method of the cable insulation material, and relates to the technical field of cable insulation materials. 3-cinnamoyl-4-hydroxycoumarin is used as a voltage stabilizer to prepare the cable insulation material, so that the electrical resistance of the cable insulation material is improved, and the problems that the voltage stabilizer added in the existing cable insulation material is easy to migrate and lose in the production, storage and use processes of cables and the action effect of the voltage stabilizer is reduced are solved; and meanwhile, the problem of photodegradation caused under the action of a high-voltage electric field is solved.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1