55results about How to "High industrial application value" patented technology

The application provides a measuring equipment monitoring device, a monitoring adjustment method, a thickness measurement method, a terminal and a medium, wherein the measuring equipment monitoring method comprises a repeatedly executed monitoring adjustment process; a single monitoring adjustment process comprises: measuring a reference wafer by a measuring equipment to obtain a monitoring data set; comparing the monitoring data set with a reference data set to obtain a difference condition; if the difference condition between the thickness monitoring data and the thickness reference data meets a thickness imbalance condition, performing alignment positioning adjustment on the measuring equipment; and if the difference condition between the warping monitoring data and the warping reference data meets a horizontal imbalance condition, performing horizontal adjustment on the measuring equipment. Through the repeatedly executed monitoring adjustment process, the state of the measuring equipment is monitored and maintained, the error of the measuring equipment is prevented from being too large, and the measurement accuracy of the measuring equipment is improved.

The invention belongs to the technical field of freight unmanned aerial vehicle delivery, and relates to an intelligent cabin door system for an unmanned aerial vehicle and a cabin door structure design method. The system comprises a driving system, a reel system, a curtain plate system, a sliding rail unit and a control unit. The control unit is electrically connected with the driving system; the driving system is arranged on the unmanned aerial vehicle body; the curtain plate system is connected with an unmanned aerial vehicle body through the sliding rail unit, the curtain plate system is connected with the reel system, the driving system is in transmission connection with the reel system through a chain wheel transmission structure, and the driving system drives the reel system to rotate so as to drive the curtain plate system to stretch or retract along the sliding rail unit. Opening and closing of the cabin door are realized. According to the invention, the number of moving parts is greatly reduced, the probability of clamping stagnation and wear failure of a mechanical transmission mechanism is fundamentally reduced, and the operation reliability of a cabin door system in harsh operation scenes such as emergency logistics and disaster rescue is remarkably improved.

The utility model provides a scrap edge collecting device of a coil stock splitting machine. Relates to the technical field of coil stock splitting machines, the scrap edge collecting device of the coil stock splitting machine comprises a storage box, a collecting box is slidably installed in the storage box, a side edge block is fixedly installed on one side of the storage box, a first electric motor is arranged at the bottom of the side edge block, and a connecting frame is fixedly installed at the top of the side edge block; a first adapter shaft is rotatably mounted on the side block, the first adapter shaft is rotatably connected with the connecting frame, the first adapter shaft is fixedly sleeved with a modulation block, a round rod is rotatably mounted on one side of the modulation block, and a second electric motor is fixedly mounted at the top of the modulation block; the output shaft of the second electric motor and the circular rod are fixedly sleeved with circular gears. The waste gas leftover material collecting device has the advantages of reducing manpower expenditure, automatically collecting waste gas leftover materials and conveniently and rapidly cleaning the leftover materials.

The utility model relates to spot welding fixture technology field especially relates to a robot automatic spot welding fixture of turntable bottom plate subassembly, including mechanism body, be provided with lifting adjustment subassembly, positioning and pressing subassembly, lifting positioning subassembly, slide table positioning subassembly, head positioning subassembly, side edge mobile slide platform subassembly and vertical plate positioning subassembly on mechanism body. The utility model novel structure, can change type fast, can be compatible with different types of product model, realize flexible production, automatic welding, solved the problem of traditional through artificial clamping labor intensity, promoted the quality and production efficiency of product, saved work time, can accurate control workpiece's up and down, horizontal, vertical and angle positioning, adapt to different size and shape turntable seat circle and workpiece, improved welding accuracy, applicable to a variety of workpiece types and size, realized the multifunctionality and adaptability of equipment, can fasterly complete welding task, shorten production cycle, promote overall production efficiency.

This invention discloses a method and system for intelligent assessment and injury risk warning of fitness movements based on motion phase perception, belonging to the field of sports biomechanics. It includes: collecting user motion images, basic health physiological data, and musculoskeletal geometric parameters to construct an assessment dataset; identifying skeletal points, dividing the movement execution phase, and extracting the temporal sequence of key joint angles; constructing a collaborative pattern dictionary grouped by movement type and execution phase; dynamically invoking time-varying collaborative constraints using a soft gating mechanism; constructing a combined loss function by fusing inverse dynamic physical consistency terms; and achieving real-time torque prediction of multiple joints based on a spatiotemporal graph neural network. It also involves calculating joint contact forces and soft tissue stress distribution by simplifying the musculoskeletal model, constructing a cumulative injury factor and a dynamic safety threshold, and combining a contrastive learning motion quality embedding network to generate a motion correctness score and an individualized injury risk assessment value. This invention solves the problems existing in the prior art.

This invention discloses a machining process for precision screws, belonging to the field of mechanical manufacturing technology. It includes the following steps: S1, rough machining and forming: treating the surface of the bar stock and machining functional slot structures, followed by pre-deburring; S2, structural strengthening: heat-treating the workpiece for strengthening; S3, precision finishing: correcting the form and position tolerances of the heat-treated workpiece and precision grinding each surface; S4, quality assurance delivery: completing inspection, cleaning, and packaging. This process flow is clear, employing a logical arrangement of "forming first, then strengthening, and then fine-tuning," resulting in a workpiece with not only a high-hardness surface but also improved coaxiality of its stepped axis and thread trajectory accuracy. This significantly enhances the screw's operational stability at high speeds. Furthermore, through staged quality control and precision correction, it improves the first-pass yield of the workpiece and reduces the risk of scrap due to heat treatment deformation, possessing extremely high industrial application value.

The utility model relates to a shoe -pad and shoe sole convenient to dismount, including shoe -pad body and support board, the bottom of shoe -pad body is equipped with the accommodation groove, the support board is placed in the accommodation groove, the front end of above -mentioned support board is equipped with the guide slot and the round hole connected in the rear end of guide slot, the groove bottom of accommodation groove rear end is equipped with the locating post, and the one end of locating post is connected with the locating cap away from shoe -pad body, the side of above -mentioned support board rear end is equipped with the bayonet, and the groove bottom of accommodation groove rear end is equipped with the locking post of cooperation bayonet, and the lower end of this locking post is connected with the locking cap. The rectangular section design of the locating post of the application can limit the rotation of the support board around the locating post with the linear cooperation of the guide slot, further ensure the position accuracy of the support board in the accommodation groove, avoid the influence of the supporting effect due to the deviation of the support board, the user can complete the dismounting of the support board without the help of the tool, and precise positioning can be realized without repeated adjustment, the convenience and the precision are considered, and the operation is simple and convenient.

The invention belongs to the technical field of composite material preparation, and particularly relates to a tungsten infiltrated copper composite material and a preparation method thereof. According to the invention, through a multi-scale through pore network formed by'prefabricated material construction ', molten copper liquid can be rapidly filled along a large pore channel and fully permeates into the tail end of a small pore, so that the defect of'black core' generated by closed pores is thoroughly avoided. According to the prepared composite material, the tungsten phase and the copper phase respectively form a stable and communicated three-dimensional network, so that the unification of high conductivity (greater than or equal to 60% IACS), high strength and toughness (hardness greater than or equal to 100 HB) and excellent arc ablation resistance is fundamentally and synergistically realized, and the long-standing limitation of'impossible performance triangle 'is effectively broken through. And the process is high in integration level, green and remarkable in strengthening effect, and process simplification, environmental protection strengthening and performance improvement are achieved at one stroke. The advantages of raw materials and process cost are outstanding, the industrialization prospect is wide, and the relationship among high performance, designability and mass productivity is perfectly balanced.

The invention discloses an asphalt concrete feeding process optimization method based on an intelligent algorithm, and relates to the technical field of industrial process control. The method comprises the following steps: step 100, extracting three-dimensional dynamic characteristic data of a raw material; step 200, constructing a three-dimensional dynamic flow field model based on the three-dimensional dynamic characteristic data, realizing global prediction of the raw material flow velocity through the three-dimensional dynamic flow field model, and generating an unloading control instruction in combination with a dynamic pre-compensation logic and a drift adaptive correction logic; and the discharging control instruction is transmitted to the PLC, and a discharging execution mechanism is driven to act through the PLC. High precision, high adaptability and economical efficiency in the asphalt concrete feeding process are achieved, and the product performance stability and the industrial application value are remarkably improved.

The invention discloses a deep counterfeiting detection method based on double-flow fusion and adaptive feature enhancement, and belongs to the technical field of computer vision and digital media security. According to the method, a double-flow feature extraction network is constructed, a high-low feature adaptive enhancement module (HLFAE) is adopted in a spatial flow to decompose multi-scale texture features, and micro texture expression of a forged area is enhanced in combination with expansion convolution and a channel attention mechanism; introducing a high-frequency sub-band capable of learning a discrete wavelet transform self-adaptive decomposition image into a frequency domain flow, and amplifying frequency domain artifact features through a convolutional network; a multi-modal enhanced feature attention module is designed to dynamically fuse space and frequency domain features, significant features are weighted through a multi-scale convolution kernel and a double attention mechanism, and feature interaction consistency is improved based on a cross-modal contrast enhancement (CMCE) module. According to the method, the highest AUC value of 99.63% is achieved on data sets such as FaceForce + + and Celeb-DFv2, the cross-domain generalization ability and the anti-disturbance robustness are remarkably improved, and the method is suitable for financial risk control and media content auditing.

The invention discloses a method for co-producing hydrogen-rich synthesis gas and a hard carbon material through biomass transient high-temperature gasification, and belongs to the technical field of biomass resource utilization and electrochemical energy storage materials. The method comprises the following steps: mixing a biomass raw material, a conductive additive and water according to a specific mass ratio, and carrying out ball milling and high-pressure molding to obtain a low-resistivity conductive blank; in a vacuum environment, through primary Joule heating, the green body is transiently heated until gasification is completed, and hydrogen-rich synthesis gas and primary porous carbon are synchronously collected; and mixing and molding the primary porous carbon and a binder, and carrying out secondary Joule heating until carbonization and hole sealing to obtain the hard carbon material. Through precise regulation and control of the two-step Joule heating process, synergistic efficient conversion of the biomass to the hydrogen-rich synthesis gas and the hard carbon material is achieved, and the method has the advantages of being high in reaction rate, high in energy efficiency, free of chemical additives, high in product value and the like and is suitable for large-scale industrial application.

This invention discloses a polyvinylidene fluoride (PVDF) resin, its preparation method, and its application. The preparation method includes the following steps: (1) preparing PVDF resin emulsion particles by emulsion polymerization of PVDF monomer; (2) adding a reducing agent and a fluorinated solvent to the obtained PVDF resin emulsion particles; (3) adding PVDF monomer, a dispersant, and an oil-soluble initiator to the emulsion obtained in step (2), and then heating to carry out a suspension polymerization reaction; (4) separating the product after the suspension polymerization is completed to obtain the PVDF resin. The PVDF resin of this invention has high flexibility, high product purity, and high adhesion.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

The invention provides a regeneration method of a molecular sieve membrane, a regenerated molecular sieve membrane and application. The regeneration method of the molecular sieve membrane, provided by the invention, comprises the following steps: treating the used molecular sieve membrane by adopting alkali liquor to obtain an alkali-treated molecular sieve membrane; and mixing the alkali-treated molecular sieve membrane with the membrane preparation liquid, and crystallizing to obtain the regenerated molecular sieve membrane. The molecular sieve membrane synthesized by the method is high in yield, the regenerated molecular sieve membrane is uniform and compact, high in repeatability and low in synthesis cost, large-scale preparation is facilitated, and the method has a better industrial utilization prospect.

This invention, belonging to the field of computational processing technology, proposes a method to accelerate sparse 3D convolution based on thread bundle alignment and memory access rearrangement. To address the issues of discontinuous memory access and low memory bandwidth utilization caused by the sparsity of convolution kernels in GPU architectures, this invention establishes a thread bundle aligned convolution kernel format method based on the direct convolution method. This method uses the width of the thread bundle as the basic unit for grouping and compression to obtain the thread bundle aligned convolution kernel format. Considering the single-instruction multithreading (SIMT) characteristics of graphics processors and the properties of convolution operations, this method is used to merge sparse convolution kernel data and perform vectorized memory access. A memory access conflict resolution rearrangement method is also established: Input data is stored in shared memory using a DHWC layout, and then a greedy algorithm is used to rearrange the weight storage order within each basic unit of the WAF, thereby eliminating shared memory conflicts for input data access by manipulating the address of each memory access.

The application belongs to the technical field of lithium ion batteries, and particularly relates to a composite negative electrode sheet and a preparation method and application thereof. The composite negative electrode sheet comprises a current collector and a negative active material layer coated on the surface of the current collector; the negative active material layer comprises a negative active material, a conductive agent and a binder; the negative active material comprises graphite and a silicon material; and the particle size ratio of the graphite and the silicon material is (0.95-1.05):1. The application has the beneficial effects that the composite negative electrode sheet is designed by matching the particle size grading and morphology of the graphite and the silicon material, the electrode is comprehensively optimized from multiple aspects such as microstructure, mechanical properties and electrochemical properties, the rate performance and cycle stability of the battery are significantly improved, outstanding substantial features and significant progress are achieved, and the application has high industrial application value and wide market prospect.

This invention discloses a multi-source fusion monitoring method based on gravity gradient tensor and sedimentary evolution, belonging to the field of water conservancy engineering monitoring technology, including the following steps: Data acquisition: acquiring gravity / gravity gradient data, surface geometric deformation data, and spectral data. Spatial constraint: constructing a dynamic mask using geometric deformation data to constrain the spatial boundary of gravity inversion. Physical enhancement: performing gradient processing or fusion on gravity data to obtain high-resolution mass distribution. Density correction: calculating the dynamic density of sediments over time based on a sedimentary evolution model, and correcting the background fluid density based on spectral data. Coupled solution: substituting the above parameters into the coupling equation to solve for the volume or mass of sediments. This invention can achieve long-term, continuous, non-contact, and quantitative accurate monitoring of reservoir capacity changes and sediment deposition volume through the synergistic fusion of satellite gravity observation, airborne gravity gradient tensor observation, optical remote sensing, and sedimentary physical evolution models.

The application discloses a bearing rotating speed measuring tachometer and belongs to the field of bearing rotating speed measuring tachometers. The tachometer comprises a mounting vertical plate, a rotation-preventing fixing piece is detachably mounted on the upper surface of the rear surface of the mounting vertical plate through bolts, the rotation-preventing fixing piece is internally fixedly connected with a bearing seat, the outer side of the rear surface of the bearing seat is threadedly provided with a shell, the inside of the shell is provided with a main control board, and the rear surface of the main control board is provided with a Hall sensor; the inner side of the rear surface of the bearing seat is fixedly connected with a bearing, the inner side of the bearing is provided with a bearing connecting shaft, and the rear end of the bearing connecting shaft penetrates through the rear of the bearing seat; the tachometer effectively solves the defects of the prior measuring device, has a reasonable overall structural design, is high in adaptability, convenient to install and debug, does not need to additionally set a counterweight, reduces the risk of rotor imbalance, and improves the measurement reliability under high-speed working conditions.

The application discloses application of phosphonated starch in selective flocculation desliming of fine-grained niobium ore, and a structural formula of the phosphonated starch is composed of a phosphonate group and a polysaccharide group of starch, the polysaccharide group is a high molecular chain formed by connecting multiple six-carbon sugar units through a glycosidic bond, and the phosphonate group is used for chelating with Nb 5+ A chelation reaction occurs, the polysaccharide group high molecular chain produces flocculation, and fine-grained gangue minerals are removed by selective flocculation. The phosphonate group of the phosphonated starch in the application chelates with exposed niobium ions on the surface of niobium minerals, so that the phosphonated starch is selectively adsorbed on the surface of the niobium minerals, the polysaccharide high molecular chain plays a bridging and sweeping role, fine-grained gangue slimes can be significantly removed by the method of selective flocculation desliming, the grade of Nb2O5 is improved, and the method has important significance for efficient recycling of fine-grained niobium ore.

The application discloses a terminal display screen intelligent brightness adjusting method based on light sensing and infrared composite sensing, and belongs to the technical field of intelligent terminal display control. The application realizes multi-dimensional composite detection of environmental light intensity, human existence state, viewing distance and viewing posture by synchronously collecting environmental light sensing data and infrared human sensing data, and breaks through the technical limitation of traditional single light sensing detection. After data filtering fusion and time sequence synchronous processing, multiple use scenarios such as unattended standby, close-range viewing, long-distance observation, strong light and weak light are subdivided, a scenario-based layered dynamic brightness adjusting strategy is constructed, the traditional fixed threshold dimming mode is abandoned, and differentiated brightness parameters and adjusting rates are matched according to different combined scenarios, and a anti-shake mechanism and a personalized calibration function are additionally added.

This invention relates to the field of catalyst preparation technology, and more specifically, to the preparation and application of a metal catalyst for the production of the rubber antioxidant 6PPD. Copper nitrate and zinc nitrate compounds are dissolved in deionized water, and silicate esters are added and mixed in a water bath. The pH is adjusted, the mixture is aged, filtered, and washed with water to obtain the catalyst precursor. Copper halide is added and stirred until homogeneous, then dried in an oven, ground, and calcined to obtain the metal catalyst for the production of the rubber antioxidant 6PPD. This invention's metal catalyst maintains high activity and selectivity while also being low in cost, exhibiting excellent stability and environmental friendliness. The preparation process is simple, reproducible, and suitable for large-scale production, providing a novel catalytic solution with high industrial application value for the efficient and green synthesis of p-phenylenediamine antioxidants.

This invention relates to the field of carbon fiber sizing agents, specifically to carbon fiber sizing agents, their preparation methods, and applications. The carbon fiber sizing agent comprises the following components in parts by weight: 100 parts sulfonated polyether ether ketone (PEEK), 1-5 parts aminated carbon nanotubes, 0.5-2 parts catalyst, and 2-6 parts condensing agent. The carbon fiber sizing agent provided by this invention exhibits uniform dispersion, long-term storage stability, and excellent film-forming properties. The carbon fiber-PEEK resin composite material prepared using this carbon fiber sizing agent demonstrates excellent interfacial bonding strength and significantly improved mechanical properties.

The present application relates to the technical field of microbial application, and in particular to Limosilactobacillus fermentum producing exopolysaccharide and application thereof in hemp seed slurry fermented yogurt. The microbial classification and naming of the Limosilactobacillus fermentum is Limosilactobacillus fermentum GXBMR4, and the preservation number is GDMCC No: 64791. The exopolysaccharide yield of the strain GXBMR4 reaches 288.33 mg / L, the viscosity of the fermentation broth reaches 40.66 mPa·s, and the strain GXBMR4 has safety characteristics such as bile salt tolerance, no hemolyticity, and high antibiotic sensitivity. In addition, the strain GXBMR4 can effectively solve the problems of unstable system and unique "fishy smell" existing in the hemp protein system in the development of hemp protein fermented food. Not only does it promote the development and utilization of hemp protein, but also has high industrial application value in the production of fermented food, and provides a new idea for the development of other plant proteins.

The utility model provides a defect observation device for penetrant flaw detection. The defect observation device comprises a magnetic mark generation mechanism, an image mechanism and a man-machine interaction mechanism, the magnetic field on the surface of the workpiece is effectively applied through cooperation of the magnetic pole piece and the electromagnetic yoke, magnetic lines escape from the surface of the workpiece at the surface defect position of the workpiece to form a leakage magnetic field, and magnetic powder applied to the surface of the workpiece can be adsorbed to form aggregation magnetic marks due to existence of the magnetic pole. Meanwhile, due to the multi-shaft driving structure of the magnetic mark generating mechanism, comprehensive spraying of magnetic powder on the surface of the workpiece is achieved, it is ensured that defects are clearly shown, and the detection accuracy is improved. And secondly, the image mechanism adopts four cameras which are arranged at an included angle of 90 degrees, so that all-directional coverage on the surface of the workpiece is realized, and the defect identification capability and the detection precision are effectively improved in combination with processing of the image processing unit on the images shot by the cameras. And thirdly, the man-machine interaction mechanism is integrated with a touch display screen and a processor, so that the operation convenience and the data tracing capability are improved.

This invention provides a method for preparing crude sucralose using an improved alcohol-water alkaline hydrolysis system, relating to the field of fine chemical technology. Using an aqueous solution of crude sucralose-6-acetate as raw material, the method involves alkaline hydrolysis in an alkali metal hydroxide and methanol-water system. This process converts sucralose-6-acetate and sucralose ester impurities (sucralose diester and tetrachlorosucralose-6-acetate) in the crude sucralose-6-acetate aqueous solution into sucralose, significantly improving the sucralose yield. The invention employs multiple concentrations and multiple extraction-back-extraction processes between the ethyl acetate / water dual solvent system to achieve equilibrium between fat-soluble and water-soluble impurities. This avoids caramelization of sugars during concentration, ensures sufficient crystallization of sucralose in ethyl acetate, improves the sucralose yield, effectively separates inorganic salts from sucralose, and reduces the cost of treating subsequent high-salinity wastewater.

The application discloses a remote sensing image water body extraction method based on texture topological feature guidance and visual segmentation large model cooperation, comprising the following steps: acquiring a multi-modal remote sensing image, and calculating a statistical feature map; based on the statistical feature map and a preset brightness physical constraint threshold, a texture constraint mask and a brightness suppression mask are respectively constructed, and a spectral feature mask is selectively constructed, and then a potential water body mask is obtained based on two or three thereof; a target connected region is extracted from the potential water body mask, and a geometric extreme point in the target connected region is calculated based on a spatial topological analysis algorithm and is defined as a spatial position prompt; the multi-modal remote sensing image and the spatial position prompt are input into a visual segmentation large model which is pre-trained and activated, and a multi-level candidate mask and a corresponding prediction confidence score are output; and the mask with the highest score is selected as the final remote sensing image water body extraction result. Based on this, the application realizes the automatic extraction of the remote sensing image water body.

The present application relates to the technical field of underground mine transportation equipment, and particularly relates to an explosion-proof remote control electric mine car. The technical scheme comprises a bearing mechanism, a driving mechanism, a load bearing mechanism and an intelligent detection mechanism, the bearing mechanism is provided with a bearing main frame, the driving mechanism is fixedly installed at the bottom of the bearing main frame, the load bearing mechanism is hingedly installed at the top of the bearing main frame, and the intelligent detection mechanism is fixedly installed at the outer side of the bearing main frame. The whole machine adopts an explosion-proof sealing integrated structure, is suitable for the underground working condition of coal mines prone to combustion and explosion, sets a remote control, a disconnection, a manual triple redundant braking structure, cooperates with a multi-dimensional hardware protection mechanism of obstacle detection, gas linkage power-off, Beidou trajectory early warning and battery temperature and pressure monitoring, forms a closed loop safety system, does not need software to participate in control, effectively solves the problems of single protection of traditional mine cars, remote control disconnection and loss of control, battery overheating and gas operation risk, and comprehensively improves the underground transfer safety and equipment stability.

The application discloses an ammonia-oxidizing bacterium and application thereof, relates to the technical field of microorganisms, and specifically relates to an alkaligenes ammonioxydans Alcaligenes ammonioxydans , and a symbiotic combination of the alkaligenes ammonioxydans Pseudomonas oleovorans with pseudomonas oleovorans, which has the advantages of high biofilm formation efficiency, short start-up time and high nitrification efficiency.

The invention relates to the technical field of oilfield chemistry, in particular to a multi-specific-surface-area denitration catalyst and a preparation method and application thereof.The multi-specific-surface-area denitration catalyst is of a core-shell structure and sequentially comprises a porous cordierite matrix, a transition metal composite active layer and a porous co-catalysis layer from inside to outside; the transition metal composite active layer comprises a vanadium-tungsten-titanium composite oxide and mesoporous silica; the porous co-catalyst layer comprises a cerium-zirconium solid solution and a ZSM-5 molecular sieve. According to the multi-specific-surface-area denitration catalyst, porous cordierite serves as a matrix, through the three-stage porous structure design of matrix pore forming, active layer mesopore regulation and control and assistant catalyst layer micropore construction, the multi-specific-surface-area denitration catalyst has the high specific surface area, the high NOx removal efficiency and the high sulfur poisoning resistance, and the mechanical strength is larger than or equal to 10 MPa. The preparation process is simple and controllable, the raw material cost is low, and the catalyst is suitable for flue gas denitration in the industries of thermal power, steel, cement and the like, and has extremely high industrial application value.

The invention relates to the technical field of catalysts, and discloses a formed catalyst and a preparation method and application thereof.The formed catalyst comprises a lanthanum-containing substance and cordierite, the cordierite comprises Mg and Fe, and the molar ratio of Mg to Fe in the cordierite is larger than 1. The formed catalyst provided by the invention has high mechanical strength, and can meet the requirements of equipment on the catalyst in the industrial amplification process. When the formed catalyst is used for oxidative coupling of methane, the conversion of methane and the selectivity of hydrocarbon with two or more carbon atoms can be improved.