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33results about How to "Change structure" patented technology
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Semi-solid-state complex no-tillage dry direct seeding method for crop seeds
The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.
Owner:HUNAN AGRI UNIV
Large-angle single-bottom hinge structure
ActiveCN224282291Uquick fixSimplify the installation processPin hingesScrew threadIndustrial engineering
This utility model discloses a large-angle, single-panel hinge, comprising: a rear fixing member, the top of which is fitted with a single-panel panel; the head end of the single-panel panel is fitted with a front fixing member; a first fastening screw hole is provided at the connection between the top of the front fixing member and the rear fixing member, and a first screw is installed in the first fastening screw hole; a second fastening screw hole is provided on the inner wall of the rear end of the rear fixing member and the single-panel panel, and a second screw is threaded into the inner wall of the second fastening screw hole. This invention relates to the field of hinge technology. By adopting an installation method combining snap-fit and screw fastening, it eliminates the traditional operation of drilling pre-embedded holes in the cabinet, greatly simplifying the installation process. Construction personnel do not need to use professional drilling tools or possess advanced drilling skills; simple assembly and screw tightening are sufficient to quickly complete the fixation of the internal frame of the cabinet, significantly improving installation efficiency.
Owner:ZHAOQING XIONGYE HARDWARE TECH CO LTD
Bi25-xErxFeO40 piezoelectric crystal, preparation method thereof and application of Bi25-xErxFeO40 piezoelectric crystal in catalytic degradation of organic pollutants
PendingCN121972176Achange structureImprove mineralization and degradation capabilitiesWater contaminantsCatalyst activation/preparationCrystal systemCubic crystal system
The invention provides a Bi < 25-x > Er < x > FeO40 piezo-electric crystal, a preparation method thereof and application of the Bi < 25-x > Er < x > FeO40 piezo-electric crystal in catalytic degradation of organic pollutants, the Bi < 25-x > Er < x > FeO40 piezo-electric crystal is a cubic crystal system, the space group is 123, and x is equal to 0.188-0.340. The Bi < 25-x > Er < x > FeO40 piezoelectric crystal can realize piezoelectric degradation of pollutants under stirring and dark conditions or under stirring and illumination conditions, and the piezoelectric catalytic degradation capability of the Bi < 25-x > Er < x > FeO40 piezoelectric crystal can be repaired under the dark and stirring conditions.
Owner:SHAANXI UNIV OF SCI & TECH
Isatis root and indigo antibacterial solid soap and preparation method thereof
PendingCN121825676Aavoid destructionretain biological activitySoap detergents with organic compounding agentsShaping soapSkin sensitizationAllergy
The invention discloses indigowoad root indigo antibacterial solid soap and a preparation method thereof. The indigowoad root indigo antibacterial solid soap is prepared from the following components in parts by mass: 5-30 parts of indigowoad root powder, 1000-1100 parts of soap base and 36-40 parts of coconut oil. The invention relates to the technical field of daily chemicals. According to the indigo indigo antibacterial solid soap and the preparation method thereof, high-purity indigo indigo powder is specially extracted, and a low-temperature cold soap making method is adopted, so that decomposition of indigo indigo and indirubin under high temperature and strong alkali is greatly avoided, and high efficiency of antibacterial and anti-inflammatory biological activity is ensured; impurities in crude indigo naturalis are removed, the risk of skin allergy and friction is reduced, the compounded soap base also makes the soap foam fine and smooth, and the skin is moist and not tight after the soap is used.
Owner:FENGGANG HEWUZHIZHI BIOTECHNOLOGY CO LTD
Arrow plough type high-speed and high-efficiency deep fertilization stirrer and fertilization method
PendingCN121942362Aevenly distributedguaranteed effectSpadesFertiliser distributersAgricultural scienceAgricultural engineering
The invention relates to the technical field of agricultural machinery, and discloses an arrow plough type high-speed efficient deep fertilization stirrer and a fertilization method.The arrow plough type high-speed efficient deep fertilization stirrer comprises a frame, one side of the upper portion of the frame is fixedly connected with an engine, the output end of the engine is fixedly connected with a connecting assembly, and the other end of the connecting assembly is fixedly connected with a speed reducer; the output end of the speed reducer is fixedly connected with a gearbox assembly, the other end of the gearbox assembly is fixedly connected with a stirring assembly, the bottom of the frame is fixedly connected with a soil turning assembly, the middle of the upper side of the frame is fixedly connected with a fertilizing assembly, and one side of the upper portion of the frame is fixedly connected with a hydraulic lifting assembly. The stirring assembly comprises a first stirring unit or a second stirring unit. By conveying the fertilizer to different depths of soil, the fertilizer can be conveniently mixed with the soil, so that the fertilizer is more uniformly distributed in the soil, the subsequent soil effect is ensured, and the nutrient supply of crop root systems is conveniently met.
Owner:SHENYANG KEHONG MECHANICAL EQUIP CO LTD
A sampling device for undisturbed slip zone soil on bedding slopes
ActiveCN121595257Bchange structureAvoid layering confusionWithdrawing sample devicesClimate change adaptationHydraulic cylinderSoil science
This invention discloses a sampling device for undisturbed slip zone soil on a bedding slope, relating to the field of slip zone soil sampling technology. It includes an inserted hollow cylinder, with a mounting frame fixedly connected to the outer wall near the top of the hollow cylinder. The mounting frame is equipped with an inner support pressing and shaping mechanism. The device involves drilling and slotting the hollow cylinder, placing it into the slot, and adjusting a hydraulic cylinder to drive an inner support plate to compress and shape a localized area within the slot. This prevents the slip zone soil from sliding on the inner wall of the slot, which could lead to layering issues. Simultaneously, after the inner support plate is positioned, a sampling point pressure plate, under the action of a positioning spring rod, elastically positions the slip zone soil at the sampling point, preventing excessive compression that could alter the soil structure. During sampling, adjusting a hydraulic cylinder causes a rotating sampling plate to separate from the guide plate, allowing the slip zone soil to fall from the rotating hole, achieving effective layered collection.
Owner:SICHUAN HIGHWAY PLANNING SURVEY DESIGN AND RESEARCH INSTITUTE LTD
A flocculant for coking wastewater and a preparation method and application thereof
ActiveCN119191499BLarge specific surface areaImprove adsorption capacityNature of treatment waterSustainable biological treatmentProcess engineeringCoking wastewater
The application discloses a flocculant for coking wastewater and a preparation method and application thereof, and comprises the following raw materials in parts by weight: 1-5 parts of polydimethyl diallyl ammonium chloride and 6-12 parts of a composite, wherein the composite is prepared from kaolin loaded N-succinyl-O-carboxymethyl chitosan and konjac glucomannan. The application aims at solving the technical problem that coking wastewater cannot reach the discharge standard.
Owner:HEBEI SYNERGY WATER TREATMENT TECH CO LTD
Application of graphene oxide in improving quality of tea trees
PendingCN121867228Achange diversitychange structureBiocidePlant growth regulatorsMicroorganismTea catechin
The invention belongs to the technical field of biological agriculture, and particularly discloses application of graphene oxide to improvement of tea tree quality. According to the application of the graphene oxide in improving the quality of the tea tree, the tea tree is treated through the graphene oxide with an effective dose, the rhizosphere and phyllosphere microflora structures of the tea tree are adjusted, and then the quality is improved. The invention discloses application of graphene oxide to improvement of tea tree quality. The diversity and structure of tea tree rhizosphere microorganisms can be remarkably changed, catechin substances and special flavor substances are improved, the health function value of tea leaves is enhanced, astringency, freshness, acid and bitter balance of the tea leaves is optimized, and a mellow and harmonious unique flavor is formed.
Owner:HAINAN NORMAL UNIV
Wheat wetting device for preparing low-GI wheat flour through pullulanase debranching
ActiveCN224186173Uchange structureLow GI valueBioreactor/fermenter combinationsBiological substance pretreatmentsBiotechnologyEnzymatic hydrolysis
The utility model belongs to the technical field of wheat wetting and debranching devices, and discloses a wheat wetting device for preparing low-GI wheat flour by using pullulanase debranching, which comprises a tank body, a mixing box, a heating layer, a vibrating device, a stirring device and a spraying device, a mixing box with an opening in the top is arranged in the tank body, and a discharging opening matched with the discharging opening is formed in the bottom of the mixing box; a vibration device is arranged at the bottom of the mixing box; a heating layer is arranged between the inner wall of the tank body and the outer wall of the mixing box; a stirring device is arranged in the cavity of the mixing box; a spraying device is arranged on the top wall of the tank body; a feeding port is formed in the top of the tank body, and a discharging port is formed in the bottom of the tank body. By adopting the stirring, vibrating, heating and enzyme liquid spraying devices, the wheat wetting time is shortened, the wheat wetting efficiency is improved, and the enzymolysis debranching reaction is carried out while the wheat is wetted, so that the low-GI wheat flour is prepared.
Owner:SHAANXI GRAIN & AGRICULTURE IND TECHNOLOGY RESEARCH INSTITUTE CO LTD +1
A paper-clamping writing board
ActiveCN224588834Uchange structureWill not slip
The utility model relates to office supplies technical field especially, a kind of paper clamping writing board, overcome the problem that the tip of pen is easily slipped and leads to the difficulty of controlling pen and the deterioration of writing quality when the existing paper clamping writing board clamps thin paper writing, with writing support plate and the paper clamp of clamping paper on writing support plate, the paper clamp includes fixed part and elastic pressure part, the fixed part of the paper clamp is fixed on writing support plate, the surface of writing support plate upward and paper contact is glued with flexible pad, the thickness of the flexible pad is 0.2~2 millimeter, the writing support plate can be plastic plate, the writing support plate perimeter edge is integrally formed with the protruding muscle of upward protrusion, the flexible pad is located in the area surrounded by the protruding muscle, the utility model scheme is simple, but changes the structural form of paper clamping writing board all along.
Owner:CHANGZHOU OUDI OFFICE SUPPLIES CO LTD
Adjusting base for quickly adjusting X, Y and Z positions of heavy-weight transformer
ActiveCN224137986Uchange structurereduce distortionTransformers/reacts mounting/support/suspensionTransformerControl theory
The utility model discloses an adjusting base for quickly adjusting the X, Y and Z positions of a heavy-weight transformer, which comprises a transformer (1) and a klystron (2) arranged on the transformer (1), a support bottom plate (3) is arranged at the bottom of the transformer (1), a universal ball (4) and a four-way adjusting device are arranged on the support bottom plate (3), and the universal ball (4) is connected with the four-way adjusting device. The four-direction adjusting device is divided into adjusting bolts (5) arranged on the supporting bottom plate (3), and the adjusting bolts (5) are distributed along the four side edges of the supporting bottom plate (3). The universal balls (4) are evenly distributed on the supporting bottom plate (3), the weight of the transformer (1) can be dispersed and supported, the universal balls (4) are small in deformation, sliding can be easily achieved, adjustment in the X direction, the Y direction and the Z direction can be easily achieved, the structure of the supporting bottom plate (3) is changed, the overall mass is reduced, meanwhile, the machining difficulty is reduced, and the original supporting strength can be kept.
Owner:CHENG DU CHUAN XIN JIA KE JI YOU XIAN GONG SI
Organic phosphate hydrolase mutant and application thereof in degrading triphenyl phosphate
ActiveCN121896195Achange structureChange functionBacteriaHydrolasesPhosphoric acidEngineered genetic
The invention discloses an organophosphate hydrolase mutant and application of the organophosphate hydrolase mutant in degradation of triphenyl phosphate. The mutant is obtained by mutating valine at the 275th site of an amino acid sequence shown in SEQ ID NO.2 into aspartic acid V275D, leucine at the 139th site of the amino acid sequence shown in SEQ ID NO.2 into phenylalanine L139F and proline at the 256th site of the amino acid sequence shown in SEQ ID NO.2 into serine P256S. The invention also relates to a gene for coding the mutant, a recombinant vector, a recombinant genetically engineered bacterium and application thereof. Experiments show that the mutant has efficient degradation capacity on triphenyl phosphate, can degrade triphenyl phosphate in a water phase at normal temperature, and has high degradation efficiency and good application prospects.
Owner:NANJING UNIV
An automatically target-changing pulsed laser deposition apparatus and method
PendingCN122081868Areduce the introductionhigh purityVacuum evaporation coatingSputtering coatingEngineeringLaser detection
This invention discloses an automatically target-changing pulsed laser deposition apparatus and method. The apparatus includes a process chamber, a transfer valve, and a buffer chamber. The process chamber is connected to the buffer chamber via the transfer valve and is configured as an internal vacuum chamber. The buffer chamber has a door at its upper part and operates as a vacuum chamber. A sample stage is located on the upper inner side of the process chamber. Two neck tubes are located on the two sides of the process chamber for guiding an external laser source and mounting a laser detection device, respectively. The process chamber also includes a rotatable target stage for loading and unloading targets from the buffer chamber. The buffer chamber includes a rotating target stage mechanism and a vision camera for placing the target material and recording the bottom features of the target material, respectively. This invention provides an automatically target-changing pulsed laser deposition apparatus and method with a compact structure, precise positioning, and automatic target changing capabilities, enabling fully automated deposition of ultrapure thin films.
Owner:JIANGWAN CENTURY (SUZHOU) SEMICONDUCTOR TECHNOLOGY CO LTD
Deaminase mutants and uses thereof
ActiveCN118048349BIncrease enzyme activityhigh activityBacteriaHydrolasesChemical synthesisChemical compound
The present application relates to a kind of deaminase mutant and its application, the deaminase mutant is obtained by the mutation of the amino acid sequence shown in SEQ ID NO.1, the mutation at least includes one in following mutation site: the 60th by L mutation A or V, the 100th by S mutation A or T, the 170th by G mutation S or C, the 200th by E mutation K or H.The deaminase mutant is applied to nucleoside compound, catalytic activity is high, stability is good, compared with wild type deaminase, there is different degree of improvement.The catalyzed reaction compared with chemical synthesis method is simple and mild, reaction selectivity is high, preparation cost is low, with good application prospect.
Owner:YANGZHOU LIANAO BIOMEDICAL CO LTD +1
A pipe flow type experimental device for simulating erosion corrosion of a weld in a pipeline
The utility model discloses a kind of pipe flow type experimental devices simulating pipeline internal weld scouring corrosion, including cooling loop part, experimental loop part, test system;In the main pipeline of experimental loop part, three test pipe sections are provided in parallel along the solution flow direction, each test pipe section is sequentially provided with valve, flowmeter, electrochemical test pipe section II, electrochemical test pipe section I, weight loss test pipe section II, weight loss test pipe section I, each test pipe section is different diameter;And experimental pipe section has simulated weld shape, can realize the electrochemical test of multiple samples at different positions of weld under scouring condition, weight loss test, and galvanic corrosion test between samples.Compared with traditional scouring corrosion technology, the utility model has small floor area, low operating cost.The utility model not only changes structure, but also changes the material of test pipe section, with the advantages of efficient, reliable, easy to install etc.
Owner:INNER MONGOLIA FIRST MASCH GRP CORP CO LTD
Boiler deaerator exhaust steam recycling device
The utility model provides a kind of boiler oxygen-removing device exhaust steam recycling device, including shell, recovery pipeline, three-way valve, serpentine duct, water purifier;Wherein, the shell is equipped with oxygen-removing device main body, and is equipped with the exhaust port for discharging the exhaust steam generated by the oxygen-removing device main body, the exhaust port is connected by recovery pipeline with the serpentine duct in water purifier, recovery pipeline is also equipped with three-way valve, the three-way valve is connected with external methanol condensate return pipe.The high-temperature exhaust steam generated by oxygen-removing device is recycled by recovery pipeline, and the high-temperature exhaust steam after recycling can heat the purified water in water purifier by serpentine duct, so that the heat energy in high-temperature exhaust steam is effectively utilized.Oxygen-removing device can use heated purified water, thereby effectively reducing the energy consumption of oxygen-removing device.When oxygen-removing device needs to change oxygen-removing mode, methanol gas generated by oxygen-removing device can be sent into methanol recovery equipment by recovery pipeline, avoiding changing the original structure of oxygen-removing device.
Owner:SHIZONG COAL & COKE CHEM CO LTD
A wood-fired griddle oven
A wood-fired griddle oven relates to the field of outdoor stoves, and more particularly to a wood-fired griddle oven. It includes a griddle assembly, a combustion chamber assembly, and a reflector assembly mounted on the oven body. The griddle assembly is positioned above the oven body and is fixedly connected to the oven body via the reflector assembly. The combustion chamber assembly is located inside the oven body and includes a combustion chamber cavity, an outer combustion chamber panel, an outer combustion chamber bottom plate, and combustion channels. The combustion chamber cavity has multiple first ventilation holes. The outer combustion chamber panel encloses the combustion chamber cavity, and the side walls of the outer combustion chamber panel are connected to the combustion channels. The outer combustion chamber panel and the outer combustion chamber bottom plate are fixedly connected. This application provides a compact, lightweight, and convenient wood-fired griddle oven to meet the needs of users seeking the ultimate flavor and high-temperature grilling experience.
Owner:GUANGDONG CANBO ELECTRICAL
Portable construction safety monitoring device for elevators
ActiveCN115716636Bchange structurereduce volumeSafety devices for lifting equipmentsStands/trestlesControl cellStructural engineering
This invention relates to the field of safety monitoring technology and discloses a portable elevator construction safety monitoring device, comprising: a mounting box; mounting lugs fixedly connected to the top of the mounting box; lug locking screws located on the front side of the mounting lugs and threadedly connected to them; a control unit located on the rear side of the mounting box and fixedly connected to it; and a sliding rail fixedly connected to the top of the mounting box. This portable elevator construction safety monitoring device, by incorporating three different sensors connected to an existing elevator via mounting lugs and lug locking screws, monitors workers on the elevator. Furthermore, by adjusting the position of the posture adjustment seat and the angle of the sensors, blind spots are avoided from negatively impacting monitoring operations. The dual-monitoring layout further enhances the reliability of the monitoring process.
Owner:CHINA CONSTRUCTION THIRD BUREAU FIRST ENGINEERING & MEP CO LTD
A method for lithium-mediated electrochemical synthesis of ammonia
PendingCN122081964AAchieve multi-dimensional coordinated controlTo achieve selective regulationElectrodesElectrolytic agentPtru catalyst
A lithium-mediated electrochemical method for ammonia synthesis, relating to the field of ammonia synthesis technology, solves the technical problems of severe side reactions, limited nitrogen mass transfer, and poor interfacial stability in existing lithium-mediated ammonia synthesis systems. Tetra(4-formylphenyl)porphyrin iron and an amino-containing multifunctional organic ligand are added to a mixed solvent of n-butanol and o-dichlorobenzene. An acid catalyst is added, and after stirring until homogeneous, the mixture is degassed and sealed for reaction. The solid product is collected by centrifugation, washed, and dried to obtain COF powder. This powder is then added to an ethanol-water solution, followed by ultrasonic dispersion with Nafion solution. The powder is then drop-coated / sprayed onto the surface of a carbon paper current collector and dried. This powder is used as the working electrode, with a platinum mesh as the counter electrode, a platinum wire as the quasi-reference electrode, and a LiBF4 tetrahydrofuran solution as the electrolyte. Ethanol is used as the proton donor, and electrolysis is performed under a nitrogen atmosphere using a constant current. This invention can be applied to the field of ammonia synthesis technology.
Owner:CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCES
A device for unclogging the cone section at the bottom of a tower.
This utility model relates to the field of oxidation tower cleaning technology, and in particular to a device for unclogging the cone section at the bottom of the tower; it includes a collection component, a drainage component, and a cutting component. The collection component is detachably connected to the bottom of the absorption oxidation tower, the drainage component is connected to the side wall of the collection component, and the cutting component extends through the drainage component into the interior of the absorption oxidation tower; the cutting component includes a telescopic rod and cutting blades, the telescopic rod extends through the collection component into the interior of the absorption oxidation tower, and multiple cutting blades are fixedly connected to the end of the telescopic rod extending into the absorption oxidation tower; this utility model enables convenient cleaning of the cone section of the absorption oxidation tower.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Compact high-torque harmonic speed reducer
The utility model relates to the technical field of harmonic speed reducers, and discloses a compact high-torque harmonic speed reducer which comprises a shell, a rigid gear, a flexible gear and a wave generator. Wherein the shell comprises a first flange and a second flange, a containing groove is formed between the first flange and the second flange, the rigid gear is clamped in the containing groove, the flexible gear is rotationally connected with the shell, the wave generator is arranged in the flexible gear, and outer teeth of the flexible gear are partially meshed with inner teeth of the rigid gear under the action of the wave generator. According to the utility model, the rigid wheel can be fixed more conveniently, and the torque of the speed reducer is increased under the condition that the external size is not changed.
Owner:HUBEI KEFENG TRANSMISSION EQUIP CO LTD
Aluminum alloy refiner as well as preparation method and application thereof
PendingCN121992231AChange interface componentschange structureProcess efficiency improvementAluminium alloy
The invention provides an aluminum alloy refiner and a preparation method and application thereof, and relates to the technical field of aluminum alloys, and the preparation method of the aluminum-titanium-boron-rare earth composite refiner comprises the following steps that aluminum, an Al-Ti intermediate alloy, an Al-rare earth intermediate alloy and an Al-B intermediate alloy are subjected to melting treatment and stirred to be uniform, and then an aluminum alloy melt is obtained; the aluminum alloy melt is subjected to degassing treatment, slagging-off and heating to obtain aluminum alloy liquid, and the aluminum alloy liquid is subjected to casting, annealing and cooling to obtain the aluminum-titanium-boron-rare earth composite refiner. The aluminum-titanium-boron-rare earth composite refiner can reduce the average grain size of the aluminum alloy.
Owner:ANHUI XINBO PHOTOVOLTAIC MATERIALS CO LTD
Test System Based on Train Onboard Transponder Transmission Module
This invention discloses a test system based on the transmission module of an onboard transponder for high-speed trains in the field of railway communication technology. The system includes an electronic tag installed on the high-speed train for storing train information; a receiving unit comprising an onboard BTM antenna for receiving radiated signals emitted by the train during operation and recording the magnetic field energy of the radiated signals; a locomotive identification unit for automatic identification of the train; a BTM electromagnetic interference source location unit for calculating the location of interference sources on the train based on the magnetic field energy received by the receiving unit and Biosava's law; and a data terminal for receiving, storing, and querying test data of the interference sources. This invention utilizes the magnetic field energy received by the BTM antenna and Biosava's law to locate the interference source with only one train run, reducing energy, time, and manpower consumption required for train runs and saving investigation costs.
Owner:BEIJING JIAOTONG UNIV
Waterproof heating air duct structure of tea set cabinet
ActiveCN224206440Uchange structureavoid direct accessDispersed particle separationCabinetsMechanical engineeringPhysics
Owner:GOLDEN FIELD IND CO LTD
Full-automatic decontamination and descaling instrument
ActiveCN224062523UEfficient cleaningguaranteed cleanlinessWater/sewage treatment by magnetic/electric fieldsStationary filtering element filtersSewageBrush
The utility model relates to the technical field of descaling instruments, and discloses a full-automatic decontamination and descaling instrument which comprises a descaling shell, a filter screen cylinder and an electric brush, the descaling shell is composed of an upper shell and a lower shell, and a flange between the upper shell and the lower shell is in butt joint with a connecting disc; the filter screen cylinder is mounted at the top of the connecting disc and is used for intercepting particle impurities in sewage; and the electric brush extends into the filter screen cylinder and is used for brushing impurities on the inner wall surface of the filter screen cylinder. The working principle of the full-automatic decontamination and descaling instrument is mainly that dirt and impurities are intercepted and cleaned in a physical and mechanical mode. The filter screen cylinder is used for intercepting particle impurities in sewage, and the electric brush is used for removing adhesive substances on the inner wall of the filter screen cylinder, so that the filtering effect is ensured.
Owner:WUXI NEW YUNGTAY ENVIRONMENTAL PROTECTION EQUIP CO LTD
Top cover structure and battery
ActiveCN224191182Uchange structureReduce the area of used materialsCell component detailsElectrical batteryBattery cell
The utility model provides a top cover structure and a battery, and relates to the technical field of batteries. The utility model provides a cover plate structure, including pole, top cover body and adapter piece, the adapter piece is provided on the lower surface of top cover body, on the adapter piece is provided with the hollow cooperation groove, and the lower pole below the mounting hole is connected with the adapter piece, and the lower pole is cooperatively arranged in the hollow cooperation groove. Compared with a double-layer structure in which the lower pole is connected with the upper surface of the switching piece in the prior art, the hollow matching groove is formed in the switching piece, and the prior art is changed into a single-layer structure in which the lower pole is connected with the hollow matching groove of the switching piece, so that the occupied space in the battery is reduced, and the space utilization rate in the battery is improved; meanwhile, the hollow matching groove is formed in the adapter piece, so that the structure of the adapter piece is changed, the used material area of the adapter piece is reduced, and the manufacturing cost is reduced.
Owner:BATTEROTECH CO LTD
A photocatalytic material of NH2-COFs@ZnS, its preparation method and application
ActiveCN117143305BHigh catalytic activityHigh product selectivityOrganic-compounds/hydrides/coordination-complexes catalystsCatalyst activation/preparationOrganic chemistryPhoto catalysis
The application discloses an NH2-COFS@ZnS photocatalytic material and a preparation method and application thereof. A multi-amino aromatic ligand and a multi-aldehyde aromatic ligand are combined into an NH2-COFS material through a Schiff base reaction, and the NH2-COFS material is combined with a zinc salt and a sulfur source through a hydrothermal reaction to obtain an NH2-COFS@Zn photocatalytic material. The NH2-COFS@ZnS photocatalytic material has excellent photocatalytic activity, good structural stability and reusability, can be applied to photocatalytic reduction of CO2, and has the advantages of simple preparation method, low cost and meeting industrial production.
Owner:CENT SOUTH UNIV
An annulus protection fluid and a preparation method and application thereof
ActiveCN117659977BHas corrosion and scale inhibitionFunctionalDrilling compositionBorehole/well accessoriesActive polymerMorpholine
The application discloses an organic annulus protection fluid for oil and gas wells and a preparation method thereof. The annulus protection fluid comprises 0.01-3wt% of active polymer, 0.1-5wt% of oxygen scavenger, 0.1-2.5wt% of bactericide, 0.1-0.5% of pH regulator, and the rest is water. The active polymer in the annulus protection fluid is copolymerized from N-acryloyl morpholine and acrylate compounds. The annulus protection fluid has good chemical stability, can effectively delay the corrosion rate of the casing and the oil and gas pipeline, solve the problems of fouling, bacterial reproduction, under-deposit corrosion and plugging caused thereby, and reduce the pressure difference between the oil and gas pipeline and the annulus. The system is suitable for annulus protection of oil and gas wells, and is especially suitable for high-acid and high-sulfur oil and gas wells.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1
Device and method for treating high manganese steel through thermal ultrasonic shot blasting and high manganese steel
PendingCN121931316AAffects surface hardnessAffect wear resistanceFurnace typesHeat treatment process controlGrain structureWear resistance
The invention belongs to the field of alloy materials, and particularly relates to a device and method for treating high-manganese steel through thermal ultrasonic shot blasting and the high-manganese steel. The invention discloses a device for treating high manganese steel through thermal ultrasonic shot blasting. The device comprises a sealing chamber, cast steel shots arranged in the sealing chamber, an ultrasonic transducer arranged above the sealing chamber and a heating platform arranged below the sealing chamber, and a high-manganese steel substrate to be treated is arranged in the sealing chamber. According to the method, room-temperature ultrasonic shot peening is adopted as a contrast, high-manganese steel is treated in two modes of hot ultrasonic shot peening in the embodiment, and the influence of shot peening temperature on the microstructure and the mechanical property of the material is researched by applying multiple advanced characterization methods. The result shows that the surface hardness, the wear resistance and the impact toughness of the high manganese steel are obviously influenced by adopting the thermal ultrasonic shot blasting technology; correspondingly, the thermal ultrasonic shot peening enables the grain structure, dislocation and other defects in the near-surface area to be obviously changed.
Owner:CHINA ROAD & BRIDGE +1
Four-blade pagoda alloy drill
ActiveCN224183410UIncreased durabilityreduce wearStone-like material working toolsTool bitAxial force
A four-blade pagoda alloy drill comprises an alloy tool apron and a U-shaped groove rod, the bottom of the alloy tool apron is fixedly connected with the top of the U-shaped groove rod, the outer wall of the alloy tool apron is connected with a blade structure, the blade structure comprises first side blades and side cutting edges, the inner sides of the two first side blades are fixedly connected with the front side and the rear side of the alloy tool apron respectively, and the inner sides of the two side blades are fixedly connected with the rear side of the alloy tool apron respectively. The second side edge on the outer wall of the alloy tool apron is a 90-degree side edge, cutting is conducted in the direction perpendicular to the axis of the drill bit, main radial cutting force is provided, the flatness and perpendicularity of the hole wall are ensured, in the initial stage of drilling, the drill bit is helped to be rapidly centered, the machining precision is improved, and the main cutting edge at the top of the second side edge bears the main cutting task. Materials are directly cut off in the drilling process, the 90-degree angle design enables cutting force to be concentrated, a workpiece can be conveniently and rapidly cut in, drilling efficiency and machining quality are improved, an original tool bit structure is changed, axial force, tangential force and radial force are effectively dispersed, tool abrasion is reduced, and tool durability is improved.
Owner:JISHAN COUNTY CHANGSHUNDA DIAMOND TOOLS CO LTD