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Method for regenerating battery-grade iron phosphate from phosphorus iron slag after lithium extraction
PendingCN119218951AReduce recycling costsreduce loss ratePhosphorus compoundsLithium iron phosphateElectrical battery
The invention provides a method for regenerating battery-grade iron phosphate from ferrophosphorus slag after lithium extraction. The method comprises the following steps: carrying out wet reduction leaching on the ferrophosphorus slag, removing impurities from a leaching solution, and roasting to prepare the battery-grade iron phosphate. According to the method, under the condition that impurity elements are not introduced, the leaching reaction of the ferrophosphorus slag is strengthened, and the leaching rate of phosphorus and iron elements can reach 99%; the purification liquid is prepared through impurity removal, the impurity removal rate is as high as 99.93%, and the ferrophosphorus loss rate is as low as 2.44%; and synthesizing the battery-grade iron phosphate from the purified liquid through a regulator. According to the method disclosed by the invention, deep removal of metal ions is realized, and the obtained product is high in purity and can completely meet the use requirements of commercially available battery-grade iron phosphate; and the slag obtained after lithium extraction of the waste lithium iron phosphate battery black powder is used as the battery-grade iron phosphate regeneration raw material, so that the iron phosphate regeneration cost can be reduced, the problems of solid waste stockpiling and landfill are effectively avoided, the resource utilization rate is increased, and deep recycling and green and environment-friendly circulation of the waste lithium battery resource are realized.
Owner:HUBEI XINGFA CHEM GRP CO LTD
Annular magnetic crushing system for micro-nano crushing of wood fibers
ActiveCN119502070Areduce centrifugal forceSports state is stableWood working apparatusGrain treatmentsFiberMechanical engineering
The invention discloses an annular magnetic crushing system for wood fiber micro-nano crushing, which comprises an annular crushing cavity, a breathing device and an emission recovery device, the annular crushing cavity is a closed structure, and the annular crushing cavity is filled with conductive particles; a circle of electromagnetic driving device and a circle of attraction device are arranged in the annular crushing cavity, the electromagnetic driving device is located on the outer circle, the attraction device is located on the inner circle, the attraction device and the electromagnetic driving device exist in a mutual accompanying mode, and the outer portion of the annular crushing cavity is connected with a conductive particle emission and recovery device; and breathing openings are formed in the top and the bottom of the annular crushing cavity and are connected with a breathing device. The wood fiber powder regularly moves up and down under the action of the breathing device, collides with the conductive particles moving at a high speed in the annular cavity and is broken down and broken. The problems that the diameter of existing professional corollary equipment is limited, the initial velocity of conductive particles cannot be obtained, and the machining efficiency is insufficient due to the lack of a breathing device are solved.
Owner:QINGDAO UNIV
Battery pack, control method of battery pack, electronic equipment and storage medium
PendingCN119364555AReduce loss rateImprove stabilityBatteries circuit arrangementsConnection managementElectrical batteryEmbedded system
The embodiment of the invention provides a battery pack, a control method of the battery pack, electronic equipment and a storage medium, and belongs to the technical field of battery management. The method comprises the following steps: in response to a power-on instruction, controlling a master node to establish wireless communication connection with a slave node through a wireless communication transceiver module, and establishing wired connection with the slave node through a daisy chain communication transceiver module; a communication processing module drives a wireless communication transceiver module of a master node to send a cell data query instruction to a slave node in a wireless communication mode according to a preset first time period; driving a daisy chain communication transceiver module of the master node to send a cell data query instruction to the slave node in a daisy chain communication mode according to a preset first time period; and controlling the master node to receive battery cell data fed back by the slave node according to the battery cell data query instruction, and generating a corresponding control instruction according to the battery cell data. According to the embodiment of the invention, the stability of battery pack communication can be improved.
Owner:SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD
Catalyst for synthesizing ortho-cresol as well as preparation method and application of catalyst
PendingCN119259021AThe preparation method is simple and easysafe preparationOrganic chemistryOrganic compound preparationHydration reactionPtru catalyst
The invention relates to a catalyst for synthesizing ortho-cresol as well as a preparation method and application of the catalyst. The molar ratio of Zn element to Al element in the metal spinel catalyst ZnAl2O4 is 1: (0.25-16), and the preparation method comprises the following steps: uniformly mixing aluminum nitrate nonahydrate and zinc nitrate hexahydrate in deionized water, stirring, adding a precipitator, and adjusting the pH value of the solution to form a precipitate dispersion liquid; and aging the precipitate dispersion liquid, carrying out suction filtration on the suspension liquid, washing, drying, and calcining to obtain the catalyst. Compared with the prior art, the catalyst disclosed by the invention is high in activity, simple to prepare, non-toxic, good in stability, long in service life, suitable for synthesizing o-cresol and 2, 6-xylenol through reaction of phenol and methanol, good in ortho-selectivity and few in by-products.
Owner:SHANGHAI INST OF TECH
Double-station automatic pressing machine
ActiveCN222471421Urapid productionSmall footprintMetal working apparatusMachineIndustrial engineering
The utility model discloses a double-station automatic press-fitting machine, which aims to solve the technical problems of low press-fitting efficiency and large occupied area of the press-fitting machine in the prior art, comprises a rack, a press-fitting device and a PIN feeding mechanism, and is characterized in that the PIN feeding mechanism is positioned above the rack, the press-fitting device is vertically suspended above the PIN feeding mechanism, and the PIN feeding mechanism is positioned above the rack. A press-fitting head is arranged below the press-fitting device, a movable press-fitting block, a left feeding jig and a right feeding jig are arranged on the PIN feeding mechanism, the movable press-fitting block can move within a limited distance of one degree of freedom, and the movable press-fitting block comprises a press-fitting station A and a press-fitting station B. Two sets of press-fitting stations on the PIN feeding mechanism are switched back and forth, so that two operation states of the machine are realized, quicker production of materials is realized, the production period is shortened, meanwhile, the number of press-fitting machines is reduced, and the investment funds of enterprises and the occupied area of plants are reduced.
Owner:广东品嘉灵智能科技有限公司
Unmanned aerial vehicle control link system and method
InactiveCN119536239AEnsure continuous controlImprove stabilityVehicle position/course/altitude controlPosition/direction controlControl engineeringUncrewed vehicle
The invention provides an unmanned aerial vehicle control link system and method, the unmanned aerial vehicle control link system comprises an unmanned aerial vehicle end control module, a ground station control module and a communication link module, and the communication link module is a multi-link redundant communication link module; the ground station control module is used for generating a control instruction and sending the control instruction to the unmanned aerial vehicle end control module through the communication link module; and the unmanned aerial vehicle end control module is used for receiving the control instruction of the ground station control module and controlling the flight and task execution of the unmanned aerial vehicle. According to the technical scheme, by adopting the multi-link redundancy design, the stability and reliability of a communication link are improved, and continuous control of the unmanned aerial vehicle in a complex environment is ensured.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
Method for recovering lithium and fluorine from electrolytic aluminum solid waste
PendingCN119464755Aachieve recyclingLow leaching rateCalcium/strontium/barium fluoridesProcess efficiency improvementEnvironmental engineeringFluoride calcium
The invention relates to a method for recovering lithium and fluorine from electrolytic aluminum solid waste, which comprises the following steps: firstly mixing the electrolytic aluminum solid waste and an iron-containing acid solution for complexing leaching to obtain a lithium-containing leachate; mixing the lithium-containing leaching solution with a calcium-containing additive for precipitation reaction to obtain a fluorine-removed lithium-containing leaching solution and calcium fluoride; then the fluorine-removed lithium-containing leaching solution is subjected to pH adjustment through alkali liquor, and an iron-removed and aluminum-removed lithium-containing leaching solution is obtained; finally, adsorbing and separating the lithium-containing leaching solution with iron and aluminum removed to obtain a lithium-rich solution; according to the method, lithium and fluorine resources in the electrolytic aluminum solid waste are efficiently recycled, the leaching rate of Li < + > is preferably as high as 87.2% or above, the loss rate of lithium is preferably as low as 1.00% or below, the recovery rate of the fluorine element is preferably as high as 85.9% or above, generation of a large amount of HF gas is avoided, and the method is environmentally friendly and low in recovery cost.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES +1
Switching value and analog quantity acquisition system
PendingCN119472424AReduce loss rateGuaranteed accuracyProgramme controlComputer controlOperational systemData acquisition
The invention provides a switching value and analog quantity acquisition system, and the system comprises a switching value acquisition module which is used for carrying out the signal acquisition through the combination of polling and interruption, and monitoring an interference source in real time through the photoelectric isolation and filtering technology in the signal acquisition process; the analog quantity acquisition module is used for performing data acquisition by adopting a multi-channel parallel acquisition mode, eliminating high-frequency noise and low-frequency interference by utilizing a digital filtering technology, and dynamically adjusting an acquisition range by utilizing a self-adaptive algorithm; the quick response module is used for performing task processing and performance optimization by utilizing a real-time operating system, so that the system response time is at a millisecond level; and the data storage module is used for designing a storage strategy in the main program and realizing data check, error processing and security storage. According to the invention, the response speed, anti-interference performance and signal integrity during switching value acquisition are guaranteed, high precision, real-time performance and the like during analog quantity acquisition are ensured, and the performance of an acquisition system is greatly improved.
Owner:CHANGSHU HAIZHOU ELECTRIC CO LTD
Inclined-angle bale pickup machine
The invention relates to the technical field of bale collecting machinery, in particular to a dip angle bale picking machine. Comprising a machine body, an elastic tooth chain assembly, a dip angle chain and a horizontal chain. The machine body is provided with an inclined panel which is inclined downwards, and the inclined chain is mounted on the inclined panel; a horizontal panel is arranged at the top end of the dip angle panel, a horizontal chain is installed on the horizontal panel, and an elastic tooth chain assembly is arranged at the bottom end of the dip angle chain. Grass conveying plates are arranged on the elastic tooth chain assembly, the inclination angle chain and the horizontal chain, and the elastic tooth chain assembly is provided with a spring; the elastic tooth chain assembly lifts the bales from the ground to the inclined panel, the inclined chain moves the bales upwards to the horizontal panel, and the horizontal chain conveys the bales to the collecting platform. Traditional straw bales (two-rope straw bales and three-rope straw bales) can be picked up, and mesh bag straw bales can be picked up in a lossless mode.
Owner:LIAONING ZIZHU PILE FOUND ENG CO LTD
Master batch with food fresh-keeping function and preparation method thereof
The invention discloses a master batch with a food fresh-keeping function. The master batch comprises the following components: 40-80 parts of PE resin; 5 to 30 parts of a nano composite antibacterial agent; 0.1 to 5 parts of a surfactant; 2-10 parts of a polyolefin elastomer; 5-25 parts of an organic gas adsorption material; 5-20 parts of a microporous modified atmosphere material; 1-25 parts of an antifogging agent; 0.1 to 10 parts of a lubricant; 0.1-5 parts of a dispersant; 0.1 to 1 part of an antioxidant; 0.1 to 3 parts of absolute ethyl alcohol; and 80 to 300 parts of ultrapure water. The master batch with the food fresh-keeping function has a broad-spectrum antibacterial effect, can reduce the rotting rate, the weight loss rate and the loss rate of fruits and vegetables in the production circulation link, adsorbs organic gas generated by respiration of the fruits and the vegetables, spontaneously adjusts the gas concentration content, and prolongs the fresh-keeping time and the shelf life of the fruits and the vegetables.
Owner:GUANGZHOU YIPINXIAN TECH CO LTD
Sprayed concrete with high crack resistance and low rebound rate and preparation method thereof
The invention relates to the technical field of concrete preparation, in particular to sprayed concrete with high crack resistance and low rebound rate and a preparation method thereof. The nano aerogel, the polypropylene fiber and the modified vermiculite are creatively adopted to prepare the sprayed concrete, and the nano aerogel has the water retention and moisture absorption characteristics and plays an internal curing role in the concrete, so that the internal water loss rate is reduced, the shrinkage of the concrete is weakened, and the concrete is prevented from being damaged. Meanwhile, the polypropylene crude fiber with high breaking strength and elasticity modulus and a composite cross-linked network structure formed by the polypropylene crude fiber and the modified vermiculite can greatly improve the crack resistance and durability of the sprayed concrete under the interaction; furthermore, when the concrete is cracked, the modified liquid flows out of the inner cavity of the vermiculite and is adhered and cured at the crack to realize a self-repairing effect, so that the structural deformation of the tunnel can be better limited, and the service life of the tunnel lining in a complex environment is prolonged.
Owner:CHINA TIESIJU CIVIL ENGINEERING GROUP CO LTD +1
Method for separating 1-fluoro-1, 1-dichloroethane and 1, 1, 1, 3, 3-pentafluorobutane azeotrope through extractive distillation
PendingCN119528690Areduce loss rateavoid pollutionHalogenated hydrocarbon preparationHeptyl alcoholAmyl alcohol
The invention relates to a method for separating azeotrope of 1-fluoro-1, 1-dichloroethane and 1, 1, 1, 3, 3-pentafluorobutane through extractive distillation. According to the method for separating the 1-fluoro-1, 1-dichloroethane and the 1, 1, 1, 3, 3-pentafluorobutane azeotrope through extractive distillation, an extracting agent is added into the 1-fluoro-1, 1-dichloroethane and the 1, 1, 1, 3, 3-pentafluorobutane azeotrope, and the extracting agent is one or more of n-amyl alcohol and n-heptanol. The method adopts intermittent extractive distillation or continuous extractive distillation operation, and has the advantages of simple and efficient separation process, high product purity and the like. The loss rate of the extracting agent is low, the extracting agent can be recycled, and environmental pollution can be avoided.
Owner:ZHENGZHOU UNIV
Hydraulic stretching equipment for battery case
InactiveCN119566156Aavoid deformationImprove stamping effectShaping toolsMetal-working feeding devicesStampingElectrical battery
The invention discloses battery case hydraulic stretching equipment which comprises a fixed base, lower die bodies and upper die bodies, a plurality of groups of lower die bodies are fixedly mounted on the inner side of the upper end of the fixed base, a plurality of groups of upper die bodies are movably mounted above the lower die bodies, and the plurality of groups of upper die bodies are connected and fixed through stamping plates; the upper end of the punching plate is driven by a hydraulic rod, material moving clamping strips are movably installed at the positions, located on the two sides of the lower die body, of the upper end of the fixed base, a plurality of sets of deviation correctors used for positioning the battery shell are installed on the side edges of the material moving clamping strips, a cooling groove is formed in the upper die body, and the upper ends of the multiple sets of upper die bodies are connected in series through a flow guide pipe. The outer surface of the upper die body is movably sleeved with a stripper plate, a transverse clamping plate is spliced and installed at the lower end of the stripper plate, an unwinding box is slidably installed on the outer surface of one side of the fixed base, and a conveying frame is arranged at the upper end of the unwinding box. And a deviation rectifying type auxiliary material moving structure is arranged, so that the deformation phenomenon of the battery shell during continuous stamping operation can be avoided, and the stamping effect of the battery shell is improved.
Owner:ANHUI ZHONGTENG INTELLIGENT EQUIPMENT TECHNOLOGY CO LTD
Positive electrode material lithium-containing precursor and preparation method thereof, positive electrode material and lithium secondary battery
PendingCN119191374AIncrease productionreduce manufacturing costSecondary cellsPositive electrodesElectrical batteryLithium carbonate
The invention provides a positive electrode material lithium-containing precursor and a preparation method thereof, a positive electrode material and a lithium secondary battery. The lithium-containing precursor of the positive electrode material meets the chemical formula Lia (Ni < x > Co < y > Mn < 1-x-y >) O (1 + a) (Li < 2 > CO < 3 >) z, wherein a is 0.10-1.08; 0 < x < 1, 0 < y < 1, and x + y < 1; z is greater than 0 and less than or equal to 0.354, and the carbon content is greater than 0 and less than or equal to 6.2 wt%. According to the lithium-containing precursor of the positive electrode material disclosed by the invention, lithium is directly pre-sintered into the precursor, so that the production process flow of the positive electrode material is simplified; decomposition of lithium carbonate into carbon dioxide is reduced, and carbon emission is reduced; lithium is directly pre-sintered into the precursor, so that the loss rate of lithium during sintering of the positive electrode material is reduced, the yield of finished products under the same bowl loading amount is improved, and the productivity of a production line is greatly increased; in addition, when the lithium-containing precursor of the positive electrode material is sintered, excessive waste water is not generated, so that the lithium-containing precursor of the positive electrode material provided by the invention is more economical and more environment-friendly compared with a traditional precursor.
Owner:HUNAN LEAGUER HOPE TECH CO LTD
Composite thermal insulation floor
PendingCN119392888ADisperse quickly and evenlyreduce temperature gradientCovering/liningsLighting and heating apparatusSolid woodCopper wire
The invention discloses a composite heat preservation floor, and particularly relates to the technical field of composite floors, the composite heat preservation floor comprises a basic reinforcing layer, a high-heat-conduction composite layer, a heat conduction liquid pipe and a heat conduction reinforcing layer, and a solid wood layer is arranged on the upper end face of the basic reinforcing layer; the efficient heat conduction network is formed through tight combination of the heat conduction enhancement layer and the metal copper wire net, and heat generated by floor heating can be rapidly and evenly dispersed to all areas of the heat conduction enhancement layer through the grid structure of the metal copper wire net; due to the uniform heat distribution, the temperature gradient formed by heat in the heat conduction enhancement layer is greatly reduced, the loss and retention of the heat in the conduction process are reduced, the heat is effectively reserved in the indoor space, a large amount of heat energy can be stored when floor heating heat is absorbed through the heat conduction liquid pipe, and after the indoor temperature reaches a set value, the heat conduction liquid pipe is closed. Even if heat supply of floor heating fluctuates or pauses, heat stored in the heat conduction oil can be slowly released, and indoor heat can be kept in the space for a longer time.
Owner:NANTONG KEMIAN HOME FURNISHING CO LTD
Electric spark multivariable self-adaptive efficient machining control system and method
The invention belongs to a non-traditional machining electric spark machining technology in the field of manufacturing, and discloses an electric spark multivariable self-adaptive efficient machining control system. The control system comprises an interelectrode discharge pulse distinguishing module, a gap machining state detection module, a gap environment machining state detection module, a gap voltage control module, a cutter lifting period control module and a pulse interval duration control module. By means of the method, the breakdown strength of spark liquid can be effectively maintained under various machining conditions, the probability of abnormal discharge is reduced, the machining process is stable, the discharge efficiency and the machining efficiency are high, and by establishing a corresponding machining process mathematical model and a control strategy, according to the machining condition of the discharge gap, the machining efficiency is improved. The optimal electric gauge calibration parameter configuration under the current machining condition is obtained, the electric gauge calibration parameters are adaptively changed and controlled in real time, and therefore the stable and efficient machining purpose is achieved.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
Composite curtain wall system with wing type decorative grating and construction method
ActiveCN119434509Aavoid secondary damagefast constructionWallsClimate change adaptationSingle plateComposite slab
The invention discloses a composite curtain wall system with a wing type decorative grating and a construction method, and relates to the technical field of decorative composite curtain walls. The method comprises the following steps of construction scheme compilation and demonstration, scheme disclosure, construction preparation, civil engineering transfer, civil engineering structure error check, surveying and setting out, post-repair embedded part installation, post-repair embedded part pull-out test, connecting part installation, keel installation and curtain wall fire prevention. Installation of a lightning protection system, hidden acceptance, installation of glass plates, installation of aluminum single plates, installation of aluminum composite plates, installation of decorative grids, and ash removal and gluing. According to the invention, in a decoration project with short construction period, accurate and rapid construction and high-quality adjustment of each unit module of the composite curtain wall are effectively realized, each component is assembled and mounted in the whole course, secondary processing procedures on site are reduced, the construction is convenient and fast, the construction efficiency of decoration, brightening and drainage projects is improved, and the construction cost is reduced. And meanwhile, secondary damage to each system component by a construction site is also avoided, and the loss rate is reduced.
Owner:CHINA MCC5 GROUP CORP LTD
Method and device for managing storage medium
PendingCN119396336AImprove reliabilityreduce loss rateInput/output to record carriersDigital data protectionComputer hardwareUnique identifier
The invention discloses a method for managing a storage medium and electronic equipment, and belongs to the technical field of computers. The method comprises the following steps: reading a unique identifier of the hard disk, wherein the unique identifier is used for uniquely identifying the hard disk; checking a reserved area corresponding to the hard disk, and determining whether encrypted information exists in the reserved area or not; if the encrypted information exists in the reserved area, acquiring the encrypted information, and decrypting the encrypted information by using a preset key to obtain target decrypted information; and judging whether the target decryption information is the same as the unique identifier or not, and executing a hard disk operation based on a judgment result. The reliability of the storage medium is improved, and the probability of loss is reduced.
Owner:CHINA UNICOM ONLINE INFORMATION TECHNOLOGY CO LTD
Method for selectively removing iron from rare earth pickle liquor
PendingCN119464713Aavoid hydrolysisreduce loss rateProcess efficiency improvementSocial benefitsPhysical chemistry
The invention relates to the technical field of selective impurity removal of valuable elements in acid solutions, in particular to a method for selective iron removal of rare earth pickle liquor. The method comprises the following specific steps: firstly, taking pickle liquor generated in an industrial production process, adding a first medicament, and stirring for pretreatment; adding a second medicament into the pretreated solution, and stirring to selectively remove iron; finally, a coagulant is added for solid-liquid separation, and supernate and iron-containing sediment are obtained. The total iron content in the supernate is lower than 5.0 mg / L, so that the production requirements of enterprises are met. The method has the advantages of simple and easy process, low equipment requirement, convenience in operation, wide application range and the like, and has good social benefits and economic values.
Owner:JIANGXI COPPER TECHNOLOGY RESEARCH INSTITUTE CO LTD
Cleaning device with adjustable screening behavior suitable for densely-planted corn
PendingCN121986657AChange the throwing forceControl separation strengthThreshersCrankAgricultural engineering
The invention provides a cleaning device with an adjustable screening behavior suitable for densely-planted corn, and belongs to the field of corn harvesting machinery. Comprising an upper screen box, a shaking plate, a centrifugal fan, a crank connecting rod mechanism and a lower screen box, the centrifugal fan is fixedly connected with a harvester, the shaking plate is arranged above the centrifugal fan, one end of the shaking plate corresponds to a discharging port of a threshing device, the other end of the shaking plate is provided with the upper screen box, and the lower screen box is arranged below the upper screen box. The ends, close to the centrifugal fan, of the upper screen box and the lower screen box are connected through crank connecting rod mechanisms, the crank connecting rod mechanisms are symmetrically arranged on the two sides of the upper screen box and the two sides of the lower screen box, and a structural unit of the vibrating screen with the adjustable screen penetrating behavior is composed of an upper-section screen plate, a middle-section screen plate, a lower-section screen plate and an inclination-angle-adjustable screen plate. The throwing force of the front end area of the vibrating screen on mixture particles and the vertical speed of air flow on the screen are increased, the separation effect of impurities and grains is promoted, the grain penetrating through the screen is improved, and the low-loss and high-cleanliness purposes of corn grain cleaning are achieved.
Owner:JILIN UNIVERSITY
Android system mobile device positioning real-time acquisition implementation method
PendingCN119322643ASave time and costImprove development efficiencySatellite radio beaconingProgram loading/initiatingSoftware developmentMobile device
The invention is applied to the technical field of software development, and particularly discloses an Android system mobile device positioning real-time acquisition implementation method, which comprises the following steps: step 1, acquiring current longitude and latitude information of a device based on a bottom layer GPS module of the device; step 2, using a native Android development tool to combine related function modules with modules officially provided by Uniapp, and uniformly packaging to generate an AAR plug-in; and step 3, using a Uniapp tool to carry out integration with the generated AAR plug-in. According to the Android system mobile device positioning real-time acquisition implementation method, initial longitude and latitude information of a device is obtained for positioning information of the mobile device based on a positioning chip of the device, and the longitude and latitude information obtained by the positioning chip of the device is used as a basis to be compared with positioning information obtained by an Android native AAR plug-in for calibration, so that the accuracy of positioning of the mobile device is improved. Therefore, the real-time and accurate positioning information of the mobile equipment is obtained.
Owner:CHANGZHOU FORSUN INFORMATION & TECH CO LTD
Large-span basement multi-stage water guide and drainage structure and construction method
PendingCN119663882AEasy constructionensure safetySewerage structuresFoundation engineeringBasementLine tubing
The invention discloses a large-span basement multi-stage water guide and drainage structure and a construction method, and belongs to the technical field of building construction. The drainage guide pipes are hung below a main beam of a basement structure, and every two adjacent drainage guide pipes are connected through a three-way pipe. The two sides of the three-way pipe are in sealed connection with the drainage guide pipes on the two sides through fixing glue respectively, and the other side of the three-way pipe is vertically arranged upwards. The drainage branch pipe is hung below a secondary beam of the basement structure; the water inlet end of the drainage branch pipe is arranged in the dewatering well and connected with a water pump in the dewatering well, and accumulated water in the dewatering well is sucked through the water pump; the water outlet end of the drainage branch pipe is communicated with the three-way pipe between the drainage guide pipes; the water outlet end of the drainage guide pipe closest to the water-collecting well is communicated with the water-collecting well; the water collecting well is sequentially communicated with a peripheral drainage ditch and a municipal pipeline through a pipeline to drain accumulated water. The water guide and drainage system is optimized, and compared with traditional ground pipeline pulling and arranging, the problem that ground pipelines are arranged disorderly is solved, and convenience is provided for construction.
Owner:ZHONGTIAN CONSTR GROUP
Autonomous target following control method fusing multiple judgment modes for robot
PendingCN119396150Aimprove accuracyImprove efficiencyVehicle position/course/altitude controlPosition/direction controlColor imageGoal recognition
The invention discloses a multi-judgment-mode-fused autonomous target following control method for a robot, and the method comprises the steps: enabling the robot to obtain the color and depth information of a surrounding environment through a carried depth camera, detecting whether a target object exists in a color image through a target detection algorithm, obtaining the pixel coordinates of the target object if the target object exists, and carrying out the recognition of the target object; meanwhile, distance information is acquired by using the depth image. And if the target is lost, predicting the position of the target by using Kalman filtering. And when the predicted time exceeds a threshold value, the UWB is used for repositioning the position and the distance of the target. And finally, calculating a linear velocity and an angular velocity of robot following according to the position information obtained in the above mode through a control strategy, and realizing autonomous following. According to the method, multiple judgment modes are fused, the accuracy of target recognition and judgment in the robot following process can be improved, and the method has the advantages of good following stability, low loss rate, low false alarm rate and the like and can be suitable for more diversified working scenes.
Owner:CHONGQING UNIV OF TECH +1
Crystalline silicon solar cell with high conversion efficiency and preparation process thereof
PendingCN119521832Aincrease profitExtended propagation pathFinal product manufactureDoped grapheneElectrical battery
The invention provides a crystalline silicon solar cell with high conversion efficiency and a preparation process thereof, and belongs to the technical field of solar cell preparation. The preparation process comprises the following steps: pretreating a crystal silicon wafer; preparing a bionic micro-nano composite film; preparing a composite structure on the surface of the silicon wafer; preparing the glass powder doped with the phosphorus-doped graphene; preparing a positive electrode conductive slurry; and preparing the crystalline silicon solar cell. The CuS nanocrystals / quantum dots are deposited on the surface of the bionic micro-nano composite film, the effects of antireflection, passivation and sensitization of the silicon wafer can be achieved, the photoelectric conversion efficiency of the battery is further improved, the CuS nanocrystals / quantum dots are deposited, the absorption range of the silicon wafer to the optical wavelength can be increased, and the photoelectric conversion efficiency of the battery is improved. Meanwhile, one absorbed photon can be converted into a plurality of photon-generated carriers through the CuS quantum effect, and the photoelectric conversion efficiency of the cell is improved.
Owner:NINGBO OSDA SOLAR CO LTD
A method for improving the drying quality and functional factors of fruits and vegetables by low-temperature freeze-thaw combined with integrated immersion freeze-drying
ActiveCN115777770Bavoid lostGuaranteed lossFood processingFruits/vegetable preservation by freezing/coolingBiotechnologyFreeze-drying
The present invention relates to a method for improving the drying quality and functional factors of fruits and vegetables by low-temperature freeze-thaw combined with integrated immersion freeze-drying, and belongs to the technical field of fruit and vegetable drying processing. The method uses fruits and vegetables with solid content less than 12% as raw materials, adopts a cyclic low-temperature freeze-thaw method to complete the freeze-thaw link of the material in a frozen state, selects small molecule peptides, functional oligosaccharides, and soluble dietary fiber as sugar substitutes to increase the solid content and functional factors, and adopts a fruit and vegetable raw water collection system to recover the water and flavor and pigment substances removed during the vacuum freeze-drying process. At the same time, the loss of nutrients is avoided by atomizing and spraying the impregnation liquid, and the pre-drying, vacuum impregnation, freezing, and post-drying processes are completed in one device. The patented method greatly improves the processing efficiency of dried fruit and vegetable products, reduces the loss of nutrients during the processing process, realizes the comprehensive utilization of fruit and vegetable raw water and flavor pigments, and enriches a variety of nutritional functional factors.
Owner:JIANGSU ACAD OF AGRI SCI
Agricultural multifunctional picking vehicle and working method thereof
InactiveCN119422649Asolve efficiency problemsQuality assurancePicking devicesAgricultural engineeringObstacle avoidance
The invention provides an agricultural multifunctional picking vehicle and a working method thereof. The agricultural multifunctional picking vehicle comprises a picking vehicle picking mechanical arm, an electric cabinet, a storage classification cabin, crawler wheels, a picking vehicle body, a picking vehicle split charging module and an automatic obstacle avoidance module. Two sides of the vehicle body are connected with symmetrically distributed crawler wheels, an automatic obstacle avoidance module is arranged at the front end of the vehicle body, and a picking vehicle split charging module is loaded at the upper end of the automatic obstacle avoidance module. An electric control box is arranged in the center of the vehicle body and comprises a microprocessor, a storage battery and a wireless communication module, and all subsystems of the picking vehicle are generally controlled. Mechanical arms are arranged at the rear end of the vehicle body. The crawler wheels are used for achieving movement, instability caused by multiple road conditions such as gullies and muddy farmland ground is avoided, meanwhile, vibration of the vehicle body is effectively relieved, meanwhile, the mechanical arm is high in freedom degree, it can be guaranteed that the robot can adapt to crops of different heights, and the application range of the robot is wider. The device is reasonable in structural design, complete and stable in function, easy to operate and capable of efficiently completing crop picking.
Owner:CHINA UNIV OF MINING & TECH
Intelligent soybean harvesting system
InactiveCN119278765Areduce wearreduce loss rateHarvesters3D modellingAgricultural scienceAgricultural engineering
The invention discloses an intelligent soybean harvesting system, and relates to the field of agricultural intelligent harvesting equipment.The system comprises a first collecting unit, a second collecting unit, a third collecting unit, a harvesting unit and a control unit.The system can control the harvesting unit to harvest soybean plants according to a harvesting route; in the harvesting process, the cutting height of the harvesting unit is controlled according to the harvesting height data corresponding to the position through which the harvesting route passes; unmanned automatic intelligent soybean harvesting can be achieved, the height of the harvesting cutter can be automatically adjusted according to the terrain, abrasion of the harvesting cutter is reduced, and the loss rate of pod harvesting is reduced.
Owner:SICHUAN ACADEMY OF AGRICULTURAL MACHINERY SCIENCES +1
Turnover device and turnover equipment
ActiveCN222311883Ureduce loss rateExtension of timeConveyor partsElectrical batteryMechanical engineering
The utility model belongs to the technical field of battery processing, and particularly relates to a turnover device and turnover equipment, the turnover device comprises a rotation driving assembly, a clamping assembly and at least one lifting bearing assembly, the rotation driving assembly comprises a rotation driving part and a rotation speed reducing part, the rotation driving part is connected with the rotation speed reducing part, and the rotation speed reducing part is connected with the clamping assembly; the clamping assembly is used for clamping a workpiece, the clamping assembly is in transmission connection with the rotary driving part to rotate the workpiece, the lifting bearing assembly comprises a lifting driving part and a carrier, the lifting driving part is in transmission connection with the carrier to drive the carrier to be close to or away from the clamping assembly, and the carrier is used for containing the workpiece; the lifting driving piece drives the carrier to be away from the clamping assembly so as to avoid the clamping assembly. After the rotary driving assembly rotates the clamping assembly, the lifting driving piece drives the carrier to get close to the clamping assembly so as to bear the workpiece on the clamping assembly, the time that the speed reducer on the turnover device bears eccentric torque force is shortened, and the loss rate of the speed reducer is reduced.
Owner:HANS LITHIUM BATTERY (YIBIN) INTELLIGENT EQUIPMENT CO LTD
Feeding device for punch forming
ActiveCN222539824UReduce loss ratequality improvementMetal-working feeding devicesDe-stacking articlesStructural engineeringElasterell
Owner:YONGKANG BOND IND & TRADE CO LTD
Complex electromagnetic environment simulation method based on digital domain synthesis and channel multiplexing
ActiveCN119199765Aquality improvementReduce loss rateRadio wave reradiation/reflectionMultiplexingComputational physics
A complex electromagnetic environment simulation method based on digital domain synthesis and channel multiplexing comprises a common-platform multi-radiation source signal digital domain synthesis generation technology, an antenna array multi-radiation source synthesis signal feed control technology and a common-platform multi-radiation source synthesis signal generation channel and independent platform radiation source signal generation channel multiplexing technology. On the premise that the number of channels of the simulation system is not changed, the signal pulse simulation number of the system is remarkably increased, the radiation source pulse loss rate is reduced, the electromagnetic environment complexity is improved, and the test result quality is improved; the method has the technical advantages of a traditional technical scheme, and when the condition that multiple radiation sources are carried on the same platform does not exist, a complex electromagnetic environment can be constructed in a pulse sorting and channel multiplexing mode according to the implementation thought of a traditional radio frequency simulation system; on the premise that the requirement for complex electromagnetic environment simulation is not changed, the requirement for the number of channels of a simulation system can be reduced, the hardware scale and technical complexity of the simulation system are reduced, the development cost of the simulation system is reduced, and the test cost-effectiveness ratio is increased.
Owner:UNIT 63892 OF PLA