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95results about How to "Give full play to the superiority" patented technology

Blast furnace chute polycyclic distributing method

The invention discloses a blast furnace chute multi-ring burden distribution, which comprises firstly calculating the distance from the center of furnace burden from the center of a blast furnace after furnace burden fell into an xy plane, secondly deciding largest and smallest burden distribution angles in theory, thirdly deciding the actual burden distribution angles of outer ring and inner ring of ores and coke, fourthly deciding the burden distribution ring number of ores and coke, determining the burden distribution angle of middle ring of ores and coke and the angel difference of adjacent rings, and sixthly determining the burden distribution rings of each ring in ores and coke. The process largely enriches the regulating method on the upper portion of the blast furnace, changes coal gas distribution, effectively increases the coal gas usage of the blast furnace, reduces coke ratio, realizes the stable and long term operation of the blast furnace, has strong loading material capacity, can eliminate furnace burden gravity segregation and the existing of pile top, much reasonably distributes furnace burden, is beneficial for strengthening smelting, and improves the press amount relationship and further increases the air quantity of the blast furnace.
Owner:CHONGQING IRON & STEEL (GRP) CO LTD

Preparation method of carbon material surface boride-modified silicon-based antioxidation coating layer

The invention relates to a preparation method of a carbon material surface boride-modified silicon-based antioxidation coating layer, and belongs to a preparation method of a carbon material surface high-temperature antioxidation coating layer. The preparation method of the antioxidation coating layer comprises the following steps of firstly, preparing a boride MB2 slurry with controllable content, wherein M in MB2 is Zr (zirconium), Ta (tantalum) or Hf (hafnium); brushing, impregnating or spraying a preset layer of MB2 slurry to the surface of a carbon material substrate with an SiC (siliconcarbide) inner coating layer; after the preset layer is obtained, performing superhigh-temperature heat treatment sintering, so as to obtain the coating layer. The preparation method is characterizedin that by regulating, controlling and designing a proportional ratio of the slurry powder of composite ceramic, the content of component in the MB2-SiC (M is Zr, Ta or Hf) coating layer can be controlled; by controlling the brushing, impregnating or spraying times, the thickness of the MB2-SiC (M is Zr, Ta or Hf) coating layer can be controlled; the preset layer is subsequently subject to superhigh-temperature sintering heat treatment, so that the density of the coating layer is improved, and the bonding strength of interface of the inner coating layer is improved. The preparation method hasthe advantages that the preparation technology is simple, the coating layer is dense and uniform, the production cost is lower, and the preparation method is suitable for carbon material parts with various shapes and sizes.
Owner:CHINA UNIV OF MINING & TECH

method for diagnosing the damage degree of a bearing under different working conditions based on a GS-SVM

The invention relates to a method for diagnosing the damage degree of a bearing under different working conditions based on a GS-SVM. The method comprises the following steps: S1, acquiring vibrationacceleration signals of the bearing under different working conditions; S2, setting parameters of a VMD algorithm; S3, calculating a time domain index and a frequency domain index of the obtained vibration acceleration signal, carrying out VMD decomposition on the obtained vibration acceleration signal, and calculating a sample entropy based on a decomposition result; S4, forming a feature vectoraccording to the obtained time domain index, frequency domain index and component sample entropy of the vibration acceleration signal, and performing normalization; S5, optimizing the penalty coefficient C and the radial basis kernel function parameter g of the support vector machine by adopting a grid search method, and inputting the training set into the support vector machine for training; AndS6, inputting the test set into the trained support vector machine, and judging the damage degree of the faulted bearing. According to the method, the optimal SVM can be constructed, and the diagnosis of the damage degree of the bearing is more accurate.
Owner:FUZHOU UNIV +1

Mixed municipal sewage and fecal sewage A2/O-biomembrane nitrogen and phosphorus synchronous removing device and method thereof

InactiveCN101935132AImprove the function of nitrogen and phosphorus removalSolve the problem of mud age contradictionTreatment using aerobic processesTreatment with aerobic and anaerobic processesFecesNitration
The invention discloses mixed municipal sewage and fecal sewage A2/O-biomembrane nitrogen and phosphorus synchronous removing device and method thereof. In the device, a second aerobic tank is connected with an anoxic tank through a pipeline and a mixed-liquid reflux pump; a sedimentation tank is connected with an anaerobic tank through a pipeline and a sludge reflux pump; and suspended filling materials are dispersed into a first aerobic tank and the second aerobic tank and are three-dimensional hollow light porous porcelain granules. By filling the suspended filling materials into an aeration tank of the traditional AAO (Anaerobic, Anoxic and Oxic) technology, carriers of an attaching and growing surface of microorganism are provided, biomass in the aeration tank is increased, processing ability of waste water is improved and sewage bulking is overcome, and attached phases and suspended phases simultaneously exist in the aeration tank to sufficiently exert superiority. On the premise that the volume of a reactor is not increased, the invention intensifies a nitration generating condition, improves the function of removing nitrogen and phosphorus of the traditional active sludge method technology, solves the problem of sludge age contradiction of the traditional AAO technology in a nitrogen and phosphorus removing process and has good water processing effect.
Owner:SOUTH CHINA UNIV OF TECH

Coal mine wet method guniting process

InactiveCN103244148AContinuously adjustable particle size distributionRegular shapeUnderground chambersTunnel liningFiberDry mixing
The invention provides a coal mine wet method guniting process and belongs to the technical field of coal mine wet method guniting. The coal mine wet method guniting process comprises the following steps of 1.1 manufacturing mixed dry materials, namely performing dry mixing of a sand and stone mixed material, cement, coal ash, a water reducing agent, fiber and an accelerator to form the mixed dry materials; 1.2 performing dry material transportation, namely transporting the mixed dry materials to a guniting working face under a coal mine; 1.3 manufacturing wet slurry, namely pouring the mixed dry materials into a stirring, conveying and guniting integrated machine and simultaneously adding water to perform stirring to form evenly-mixed wet slurry; 1.4 performing guniting operation, namely utilizing a plunger type wet spraying machine (11) to perform continuous and quick guniting operation to the working face needing guniting; and 1.5 cleaning a pipeline, namely cleaning the guniting pipeline of the plunger type wet spraying machine (11), keeping the pipeline to be clean and preventing blockage. By means of the coal mine wet method guniting process, dry mixing, conveying, stirring, guniting and other processes are tightly combined integrally, the processes are compact, manpower is saved, the efficiency is improved, guniting materials are even and consistent in proportion, and the guniting effect is remarkable.
Owner:ZIBO MINING GRP

Hybrid electric vehicle compound power supply with maximally optimized energy efficiency and method of hybrid electric vehicle compound power supply

The invention discloses a hybrid electric vehicle compound power supply with maximally optimized energy efficiency and a method of the hybrid electric vehicle compound power supply. The compound power supply comprises a storage battery, a super-capacitor and a DC/DC converter, wherein the super-capacitor is serially connected with the DC/DC converter and then parallelly connected with the storage battery. The optimization method includes the steps: building mathematic models of the storage battery, the super-capacitor and the DC/DC converter; solving the loss of each model and the total power loss; concluding limiting conditions of the total loss to obtain an energy efficiency maximizing optimization model; solving by an approximate programming method; approximating a target function and constraint conditions of the optimization model as a linear function, solving the linear function by a simplex method, and taking an optimal solution meeting original conditions as a final solution of the optimization model. Power loss of an optimized compound power supply energy storage system is greatly reduced as compared with power loss before optimization, and energy use rate is increased. Working points of high-efficiency areas of the storage battery and the super-capacitor are increased and more densely distributed.
Owner:JIANGSU UNIV

Solar power supply control system and control method

The invention relates to a solar power supply control system, which comprises a solar photovoltaic panel, a storage battery, a direct current stable-voltage power supply and a controller, wherein the controller is connected with the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply and can control the on and off of the solar photovoltaic panel, the storage battery and the direct current stable-voltage power supply. The invention also relates to a solar power supply control method. In the method, when sunlight is sufficient, photovoltaic power is used preferably; when the voltage or current of the photovoltaic panel reduces to a preset value, the lead-acid storage battery is switched to and used; and the direct-current stable-voltage power supply is switched to only when both the photovoltaic power and the lead-acid storage battery can be used. In the invention, the solar power supply, the storage battery and the common stable-voltage direct-current power supply are integrated to form a diversified solar power supply system which can be switched automatically without disturbance, and the solar power supply system is free from the influences of weather conditions such as season turning, day and night alternation, weather change and the like.
Owner:HUNAN XINYASHENG PHOTOELECTRIC CO LTD

Construction method of impacting and rolling

The invention discloses an impact rolling construction method, belonging to the technical field of roadbed reinforcement construction, comprising the steps of leveling the surface of the impact rolling section, detecting the degree of compaction and water content, and when the degree of compaction and the water content of the surface of the impact rolling section are After the water content meets the design requirements, use an impact compactor to impact and roll 3 to 9 times, and at the same time use a bulldozer to level it, remove excess earthwork, arrange the roadbed, and use a vibratory roller or smooth wheel roller to roll 1 to 2 times. The secondary deformation modulus Ev2 value of the foundation soil after impact rolling; the present invention accurately limits which geological conditions are suitable for the impact rolling reinforcement construction method, more fully exerts the effect of impact rolling, and greatly reduces the impact of rolling. The number of times of rolling is generally 3 to 9 times. The detection index after rolling reaches the German high-speed railway foundation standard, which reduces the project cost and speeds up the project progress. The present invention is especially suitable for the foundation reinforcement construction of high-speed railways and highways.
Owner:CHINA RAILWAY NO 8 ENG GRP CO LTD

Walking training device for electric power training based on VR system and training method

The invention provides a walking training device for electric power training based on a VR system and a training method. The device comprises an operation platform, a PC main unit, a large screen, a chair and a VR helmet, the PC main unit is connected with the operation platform, the large screen, the chair and the VR helmet respectively, and the PC main unit is used for generating various failure virtual scenes and synchronously displaying the scenes through the large screen and the VR helmet; a touch screen displayer is arranged on the operation platform, all the failure scenes are displayed on the touch screen displayer, a cross operating crank is arranged on a handrail on one side of the chair and is used for controlling the main visual angle to move forward, backward and conduct left displacement and right displacement, and two or more buttons are arranged on a handrail on the other side of the chair and are used for selecting and judging the scenes; a vibration device and an air supply device are further arranged on the chair. Compared with an existing complex VR system, the walking training device is simple in logic of the operation process, the superiority of the VR system is sufficiently achieved, so that an operator completes walking training for electric power training more comfortably and conveniently, and the effective, safe and harmless training aims are achieved.
Owner:STATE GRID CORP OF CHINA +2

Prestressed pipe pile upright

The invention discloses a prestressed pipe pile upright. The prestressed pipe pile upright comprises a steel lattice post, a pipe pile and a pipe pile core insert. The pipe pile core insert is coaxially and fixedly connected with the lower end of the steel lattice post and fixedly inserted into the pipe pile in an annular column shape. The lower end of the steel lattice post is fixedly connected with the upper end of the pipe pile core insert. The upper end of the pipe pile core insert is connected with a pipe pile end plate on the top of the pipe pile. The lower end of the pipe pile core insert is fixedly provided with a layer board. A pouring space is formed by the layer board and the inner side gap, above the layer board, of the pipe pile and is filled with expansive concrete in a poured mode. The prestressed pipe pile and the steel lattice post are combined together to serve as an upright system for a deep foundation pit horizontal support, the system is high in construction speed, expenses are reduced, large moment of inertia is provided, the function of improving the whole rigidity is achieved, and the superiority that the steel lattice post is connected with the support at the upper portion of a foundation pit and penetrates through a bottom board for waterproof construction is fully played at the same time.
Owner:江苏九如建设有限公司

MBBR (Moving Bed Biofilm Reactor) packing material negative pressure and positive pressure conveying method and device

The invention relates to an MBBR (Moving Bed Biofilm Reactor) packing material negative pressure and positive pressure combined conveying method which is characterized by comprising the following steps of: collecting an MBBR packing material via an inlet water collecting pipeline in a vacuum type and connecting to a vacuum tank, connecting the top of the vacuum tank with a negative pressure generating apparatus via a pipeline, cutting off the vacuum after the MBBR packing material is collected to the vacuum tank, and opening a positive pressure pipeline communicated with the vacuum tank. A positive air pressure pipeline is also arranged at the top of the vacuum tank, the MBBR packing material is ejected to a water pool from a packing material ejection pipeline, and a water outlet pipe connected with the vacuum tank is communicated to the water inelt end of the MBBR water pool. With the method, the packing material is not easy to break, microorganisms on the surface of the packing material are not easy to flush away, and thus, the aerobic biochemical efficiency of a carrier is greatly improved. The purpose of conveying the MBBR packing material to a long distance can be achieved.
Owner:高晓华 +3

Pesticide waste residue fluidized bed incinerating process and pesticide waste residue fluidized bed incinerating device

The invention provides a pesticide waste residue fluidized bed incinerating process and a pesticide waste residue fluidized bed incinerating device. The process comprises the following steps: charging pesticide waste residues into an incinerating device to incinerate at 900 DEG C-950 DEG C at pressure of minus 100-minus 200Pa; then charging smoke into a waste heat boiler to carry out heat exchange; leading the cooled smoke to be in contact with water and absorbing residual HCl and Cl2 in the smoke by alkali. The incinerating device comprises a fluidized bed incinerator body, wherein an explosive prevention door and an ammonia water spray gun are arranged on a sparse phase incinerating area; the lower part of a dense phase incinerating area is provided with a wind allotting plate, the lower part of the wind allotting plate is provided with a wind chamber, and the bottom end is provided with a residue discharge pipe; the top of the incinerator body is communicated with the upper part of a cyclone separator; the top of a center cylinder of the cyclone separator is connected with the top of a smoke channel at the tail part, and the bottom is communicated with the dense phase incinerating area of the incinerator body by a material return device. The invention can ensure the thorough incineration of pesticide waste residues, prevent secondary pollution and realize decontamination and recycling of wastes.
Owner:BEIJING HANGHUA ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD

Kit and detection method for specifically detecting lily cucumber mosaic virus

The invention provides an IC-RT-LAMP (Immune Capturing-Reverse Transcription-Loop-Mediated Isothermal Amplification) kit and detection method for specifically detecting a lily cucumber mosaic virus CMV. The kit mainly comprises a specific CMV antibody IgG, a specific RT reverse primer CMV-R, a specific LAMP primer group, a first-chain cDNA (complementary Deoxyribonucleic Acid) synthesis reagent, an LAMP amplification reaction reagent, a fluorescent dye detection solution, a negative reference substance and a positive reference substance; the specific LAMP primer group is composed of a frontward outer primer F3, a backward outer primer B3, a frontward inner primer FIP, a backward inner primer BIP, a positive loop primer LF and a backward loop primer LB; the negative reference substance is ddH2O and the positive reference substance is a Lanzhou lily CMV CP gene standard product. According to the kit provided by the invention, RNA (Ribonucleic Acid) does not need to be extracted and molecular biology special instruments and equipment including an enzyme labeling instrument, a PCR instrument or a fluorescent quantitative PCR instrument and the like are not needed; amplification reaction can be finished in a constant-temperature water bath, and the specificity and sensitivity are high; the kit is convenient to operate and has high applicability; the kit can be used for monitoring generation, spreading and prevalence of the lily CMV and is suitable for being popularized and applied in grassroots.
Owner:NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS

Gearbox compound fault diagnosis method based on VMD and OMEDA

InactiveCN109238717AAvoid Modal AliasingOvercome Difficult Choice ProblemsMachine part testingCharacter and pattern recognitionFrequency bandVibration acceleration
The invention relates to a gearbox compound fault diagnosis method based on VMD and OMEDA. The gearbox compound fault diagnosis method comprises the steps that firstly, a vibration acceleration signalof a fault gearbox is obtained, the penalty factor alpha in VMD is set to be 2000, thus the modal-aliasing angle is avoided, and the decomposing number K is determined; secondly, on the basis of determined VMD parameters, VMD decomposing is conducted on an original vibration signal, and all components are subjected to envelope demodulation analysis; then, whether protruding frequency lines and the double frequency exist in envelope spectrums of all the components or not is observed, if yes, the protruding frequency lines are compared with the fault character frequency of the gearbox, and if not, the components are subjected to OMEDA noise reduction continuously and then subjected to envelope demodulation analysis; and finally, the comparing results of the protruding spectrum lines of theenvelope demodulation spectrums of all the components and the fault character frequency are synthesized, and the compound fault type of the gearbox and the parts where faults are located are judged. Signal noise reduction and separation of all frequency bands are achieved through VMD, fault impact components covered by noise are further enhanced through OMEDA, and gearbox compound fault diagnosisis more accurate.
Owner:FUZHOU UNIVERSITY

K clustering intelligent selection microwave signal multipath interference suppression method

The invention discloses a K clustering intelligent selection microwave signal multipath interference suppression method, and relates to an interference suppression method. The method comprises the following steps: 1) establishing and training a multipath interference suppression model; 2) setting test conditions of the antenna in the anechoic chamber; 3) adding reflection plate interference sources of different materials or shapes to establish an interference model; 4) dividing the difficulty condition of the interference degree; and 5) correspondingly and respectively selecting proper algorithms according to interference degree classification to complete K-clustering intelligently-selected microwave signal multipath interference suppression. When the multipath interference mode is simple,a polynomial regression algorithm is used, a gradient descent method is used to train the model until the error converges, the current optimal multipath interference suppression model is stored, theoperation is simple, and the precision is improved. And when the multipath interference mode is medium, multipath interference suppression under the condition of three interference paths is realized by adopting a random forest. When the multipath interference mode is difficult, the neural network is adopted to realize multipath interference suppression under the condition of five interference paths, and finally, the optimization efficiency of the antenna is improved.
Owner:XIAMEN UNIV

Kit used for specific detection of LiLy mottlt virus, and detection method thereof

The invention discloses an IC-RT-LAMP kit used for specific detection of LiLy mottlt virus (LMoV), and a detection method thereof. The IC-RT-LAMP kit mainly comprises a specific LMoV antibody IgG, a specific RT reverse primer LMoV-R, a specific LAMP primer pair, a first chain cDNA synthesis reagent, an LAMP amplification reaction reagent, a fluorescent dye detection solution, a negative control, and a positive control; the specific LAMP primer pair is composed of a forward outer primer F3, a reverse outer primer B3, a forward inner primer FIP, a reverse inner primer BIP, a forward loop primerLF, and a reverse loop primer LB; the negative control is ddH2O, the positive control is Lilium davidii LMoV CP gene standard substance. In the detection method, extraction of RNA is not needed, no molecular biology profession instrument such as enzyme-labeled instrument, PCR instrument, or fluorescent quantitation PCR instrument is needed, amplification reaction can be completed in constant temperature water bath, the specificity and the sensitivity are high, operation is convenient, the applicability is high, and the IC-RT-LAMP kit can be used in monitoring of infection, diffusion, and epidemic of lily LMoV, and is suitable for popularization.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Kit for detection of arabis mosaic virus (ArMV) of lilies and detection method of arabis mosaic virus

Disclosed is a kit for detection of IC-RT-LAMP of arabis mosaic virus (ArMV) of lilies and a detection method of the arabis mosaic virus and a detection method of the arabis mosaic virus. The kit mainly comprises a specific ArMV antibody IgG, a specific RT reverse primer ArMV-R, a specific LAMP primer group, a first chain cDNA synthesis reagent, an LAMP amplification reaction reagent, fluorescentdye detection fluid, a negative reference substance and a positive reference substance; the specific LAMP primer group is formed by a positive external primer F3, a reverse external primer B3, a positive internal primer FIP, a reverser internal primer BIP and a positive loop primer LF; the negative reference substance is ddH2O, and the positive reference substance is an ArMV gene standard substance for cut-flower lilies. Extraction of RNA (ribonucleic acid) is omitted, professional instruments and equipment for molecular biology of microplate readers, PCR (polymerase chain reaction) instruments are not needed, amplified reaction can be completed in thermostatic waterbath, and the kit is high in specificity and sensitivity, convenient in operation, high in applicability, applicable to monitoring of the occurrence, spread and prevalence of the ArMV virus in the lilies, and suitable for grassroots application.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS

Preparation method of carbon material surface boride solid solution modified silicon-based coating

The invention discloses a preparation method of a carbon material surface boride solid solution modified silicon-based coating, and belongs to a preparation method of a carbon material surface anti-oxidation coating. The preparation method comprises the following steps: preparing content-controllable boride solid solution NB2 modified silicon-based composite ceramic slurry, wherein N is equal to ZrxTa1-x, HfxTa1-x or ZrxHf1-x, and x is equal to 0-1; applying a preset layer of the NB2 slurry, by brushing, dip coating or spraying, to the surface of a carbon material matrix with a SiC internal coating; performing heat treatment and sintering to synthesizing the coating. According to the preparation method disclosed by the invention, the solid solubility of the solid solution phase in the coating is controlled by taking boride solid solution powder as a raw material; the component content of the coating can be controlled by controlling and designing the slurry-powder ratio of composite ceramic; control on the coating thickness can be realized through control on the times of the brushing, dip coating or spraying. Through late heat treatment on the preset layer, the density of the coating and the bonding strength of the internal coating interface can be enhanced. The preparation method disclosed by the invention has the advantages of simple preparation technology, dense and uniform coating and relatively low production cost, and is suitable for carbon material components different in shape and size.
Owner:CHINA UNIV OF MINING & TECH
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