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Electric heating load prediction method
InactiveCN107909220ARun accuratelyScientific and reasonable operationForecastingNeural architecturesElectricityLoad forecasting
The invention provides an electric heating load prediction method. The electric heating load prediction method comprises steps that main influence factors of an electric heating load are analyzed; theBP neural network calculation method is constructed; a genetic algorithm is constructed to optimize the BP neural network calculation method; integral data is selected as a training sample and a prediction sample, the BP neural network calculation method and the genetic algorithm are utilized to optimize the BP neural network calculation method to respectively predict an electric heating load, and effectiveness and scientificity of the genetic algorithm for optimizing the BP neural network calculation method are verified. The method is advantaged in that the electric heating load can be precisely predicted, a type of heating equipment of a heating system and a new load size can be accurately determined, heating parameters, idle capacity and a system operating status, etc., can be accurately determined, so operation, maintenance and overhaul of the heating equipment are made to be more scientific and reasonable.
Owner:TIANDAQIUSHI ELECTRIC POWER HIGH TECH CO LTD
Locking bone screw with expansionstructure
The invention discloses a locking bone screw with an expansion structure, which belongs to the technical field of medical devices. The locking bone screw with the expansion structure is characterized by comprising an expansion screw rod and a top screw matched with the expansion screw rod, wherein internal threads are formed in a blind hole or a through hole of the expansion screw rod; external threads which are engaged with the internal threads in the blind hole or the through hole of the expansion screw rod are formed in the top screw; more than one expansion groove is formed in the head part of the expansion screw rod; a groove, a polygonal blind hole or a polygonal bump through which the top screw can be screwed into the blind hole or the through hole of the expansion screw rod is formed in the tail part of the top screw; external threads through which the expansion screw rod can be screwed into a broken bone to form a taper are formed in the tail part of the expansion screw rod; a groove through which the external threads with the taper can be screwed into the broken bone is formed in the end surface of the tail part of the expansion screw rod. According to the locking bone screw with the expansion structure, the friction force between the bone screw and a cancellous bone can be increased, and the pulling resistance of the bone is increased, so that the screw is firmly connected with a cortical bone or the cancellous bone; the bone screw is easy and convenient to operate, and is easily screwed and removed during a surgery.
Owner:ZHEJIANG CANWELL MEDICAL DEVICES CO LTD
Resource scheduling method for multiple robots and resource scheduling system thereof
ActiveCN103064743AScientific and reasonable operationMeet the needs of differentiated schedulingResource allocationResourcesDistributed computingRobot
The invention discloses a resource scheduling method for multiple robots and a resource scheduling system thereof. The method includes storing a resource scheduling scheme of the multiple robots into a resource scheduling scheme base, providing all resource scheduling scheme options of the multiple robots in the resource scheduling scheme base of the multiple robots, judging whether to receive an operation command of a resource scheduling scheme option of the multiple robots and selected by a user and reading characteristic information of the user, scheduling a resource scheduling scheme corresponding to the characteristic information from the resource scheduling scheme base and executing the corresponding resource scheduling scheme on no judgment. The resource scheduling schemes of the multiple robots are stored in the resource scheduling scheme base in classification mode. Characteristic information of the user is read if the user has no selection, the corresponding resource scheduling scheme is automatically selected according to the characteristic information of the user, and difference scheduling requirements of the user are met.
Owner:深圳市弘志拓新创业投资企业(有限合伙)
Multidirectional-adjustable type textile cloth cutting device
ActiveCN108385357AEasy to adjust at multiple anglesRealize multi-angle adjustmentSevering textilesDrive shaftCotton material
The invention discloses a multidirectional-adjustable type textile cloth cutting device which comprises a machine body, wherein a shock absorption walking mechanism is mounted at the lower end of themachine body; a machine cavity is formed in the machine body; a servo motor is mounted at the middle part of the bottom end of the machine cavity; a driving shaft of the servo motor is provided with afirst gear in a sleeving manner; the driving shaft of the servo motor is fixed on the inner wall of the machine cavity through a first bearing pedestal; the first gear is meshed with a second gear having a diameter greater than the diameter of the first gear; a worm is inserted into the middle part of the second gear; both ends of the worm are meshed with worm wheels; nuts are fixedly inserted into the middle parts of the worm wheels; the nuts are fixed on the inner wall of the machine cavity through bearings; internal threads of the nuts are connected with screw rods. The multidirectional-adjustable type textile cloth cutting device is stable in structure, easy to operate, scientific and reasonable in design, short in production period, low in manufacturing cost, high in shock absorptionperformance and convenient to move, can be adjusted in multiple directions, can greatly save time and energy of a worker, and is worthy of popularization.
Owner:浙江中勋服装有限公司
Wind turbine generator power characteristic evaluation method based on cloud model and optimal combination empowerment
PendingCN111461564AHighly subjectiveObjective total preferenceResourcesSystems intergating technologiesEvaluation resultData set
The invention discloses a wind turbine generator power characteristic evaluation method based on a cloud model and optimal combination empowerment. The method comprises the steps: 1, acquiring a normal wind speed-power data set; 2, according to the wind speed-power normal data set, determining an evaluation factor set of the power characteristics of the wind turbine generator, wherein the evaluation factor set comprises annual power generation capacity of the wind turbine generator, a power standard deviation average value below the rated wind speed, a power standard deviation average value above the rated wind speed and a power coefficient maximum value below the rated wind speed; and 3, obtaining a comprehensive evaluation result. The method is easy to implement, and scientific, effective and reasonable operation of the wind power plant is guaranteed.
Owner:HUNAN UNIV
Buoyancy vertical pipe of self-balancing ups and downs cultivation net cage
InactiveCN102771421ASmooth intake and exhaustHigh speedClimate change adaptationPisciculture and aquariaExhaust valveMarine engineering
The invention provides a buoyancy vertical pipe of a self-balancing ups and downs cultivation net cage and relates to sea farming equipment. The pipe comprises a middle pipe body 1, a top pipe cap 2, a pipe cap internal-connected ventilation chamber 4 and a bottom flange plate 10; the bottom end of a pipe cavity is provided with a water inlet / drainage valve 12 while the top end is provided with a central air inlet / exhausting opening 7; the inner surface of the top of the pipe cavity 9 is a circular arc shape or a conic shape; and one floating ball 14 is arranged in the pipe cavity. The buoyancy vertical pipe has the advantages that the air inlet / drainage valve at the top end in the pipe cavity of the former buoyancy vertical pipe is removed; one floating ball is arranged in the pipe cavity so that the air inlet / exhausting and water inlet / drainage process is accelerated; and the net cage is steadier to life in a balance manner. The buoyancy vertical pipe is simple in structure and saves manufacturing cost.
Owner:翟玉明
Inclination-angle-adjustable mechanism and sickbed with same
InactiveCN105287135AOvercoming the defects of fixed angleSimple structureNursing bedsGear wheelDrive shaft
The invention discloses an inclination-angle-adjustable mechanism. The mechanism comprises a snap ring curved bar. One end of the snap ring curved bar is connected with a rocking bar, the lower portion of the snap ring curved bar is connected with a connecting bar, a crank is arranged below the connecting bar, a transmission shaft placed horizontally is arranged in the center of the crank, a gear is arranged on the transmission shaft, a rack is arranged below the gear, meshed with the gear and placed in the direction perpendicular to the transmission shaft, a rack bar is arranged below the rack, a telescopic lifting bar is hinged to the front end of the rack bar, and the rack and the rack bar are both installed on a rack support. The mechanism is simple in structure, easy to obtain and applicable to common beds, sickbeds, sofas, deck chairs and the like, overcomes the defect that in the prior art, the angle of the articles is fixed, and effectively increases use comfort. The invention further discloses a sickbed with the inclination-angle-adjustable mechanism. The sickbed relieves the labor intensity of nurses greatly and is high in stability and safety, convenient to use, practical and worthy of wide popularization.
Owner:QINZHOU UNIV
High-precision positioning and direction-finding receiver
ActiveCN107976693AEasy to disassemble for cleaningShorten the timeSatellite radio beaconingEngineeringRadiation
The present invention discloses a high-precision positioning and direction-finding receiver. The receiver comprises a base plate and a signal terminal and a body which are formed by employing an integrated forming mechanism, a heat radiation rack is sleeved on the body, a plurality of heat radiation fins are equidistantly clamped on the heat radiation rack, two nuts are symmetrically installed onthe heat radiation rack, each nut is in threaded connection with one bolt, the portion, located in the heat radiation rack, of each bolt Is rotationally connected with a first fixture block employingan arc structure, the heat radiation rack is fixed on the body through the first fixture block, two receiving grooves are symmetrically arranged on the body, the inner wall of the bottom end of each receiving groove is rotationally connected with one pedal, and the inner wall of the upper end of each receiving groove is provided with one first cavity. The high-precision positioning and direction-finding receiver is stable in structure, simple to operate, scientific and reasonable in design, short in production cycle, low in manufacturing cost, good in heat radiation performance, convenient todisassemble and assemble and convenient to be fixed on the ground, can save a lot of time and energy of workers, deserves to be popularized.
Owner:CHONGQING AOBIN SCI & TECH CO LTD
Operation optimization method for cold end system of surface condensation type indirect air cooling power generator set
ActiveCN106894854AScientific and reasonable operationImprove operating economyMachines/enginesSafety/regulatory devicesAutomatic controlEngineering
The invention discloses an operation optimization method for a cold end system of a surface condensation type indirect air cooling power generator set, which enables the operation of the cold end system of a surface condensation type indirect air cooling power generator set to be more scientific and reasonable, improves operation economy of the power generation set, and performs automatic control operation to improve automated operation level of the set. A relation between a circulated water flow and backpressure under different loads and different environment temperatures can be obtained without performance testing on site, and operation optimization of the cold end system can be realized according to actual operation performances of the set. The conditions are changed along with change of time, the relation between the circulated water flow and the backpressure is different under different loads and different environment temperatures, such that the precision of operation optimization is improved by adopting the operation optimization method for a cold end system, and the project implementation investment is also reduced. According to the operation optimization method for a cold end system, the cold end system is enabled to be operated automatically and economically, manually adjusted errors of operating personnel are avoided, the labor intensity of the operating personnel is reduced and operation economy of the power generator set is improved.
Owner:XIAN XIRE ENERGY SAVING TECH
Transverse-moving-type stereo parking garage structure
The invention discloses a transverse-moving-type stereo parking garage structure which comprises a garage. The garage is provided with a plurality of supporting seats, and an opening is formed in theupper end of the garage. A garaging device is mounted at the opening and provided with a lifting motor which is wound with a lifting rope, and a support is fixedly connected to the end, away from thelifting motor, of the lifting rope. A bottom plate is mounted at the bottom end of the support, and a hydraulic oil station is mounted in the middle of the bottom end of the bottom plate. Hydraulic oil cylinders are mounted on the two sides of the bottom end of the bottom plate correspondingly, and the hydraulic oil station communicates with the hydraulic oil cylinders through oil pipes. Two supporting plates are symmetrically arranged at the upper end of the bottom plate, and the ends, close to each other, of the two supporting plates are rotatably connected to the bottom plate jointly. According to the transverse-moving-type stereo parking garage structure, the structure is stable, operation is easy, design is scientific and reasonable, vehicle storage can be convenient, vehicles can belimited and automatically garaged, the buffer anti-seismic property is good, a large amount of time and energy of workers can be saved, and the transverse-moving-type stereo parking garage structure is worthy of being popularized accordingly.
Owner:安徽双骏智能科技有限公司
Overcoating base paper used for outdoor highly-strengthened plate and preparation method of overcoating base paper
ActiveCN108130815AIncrease coverageImprove breathabilitySpecial paperReinforcing agents additionFiberPapermaking
The invention belongs to the technical field of papermaking, and in particular relates to overcoating base paper used for an outdoor highly-strengthened plate and a preparation method of the overcoating base paper. The base paper is prepared from the following raw materials: wood pulp, a filler, an auxiliary agent and a pigment, wherein the auxiliary agent is composed of sodium hydroxide, sulphuric acid, aluminium sulphate and a wet strength agent; and the filler is composed of titanium dioxide, magnesium silicate and kaolin. The prepared overcoating base paper used for the outdoor highly-strengthened plate provided by the invention has a good covering property, fiber distribution uniformity, fine paper surfaces, strong corrosion resistance, a high sun-proof grade, and high water washing color fastness; and after the base paper is impregnated with melamine for veneering, the base paper is impregnated into a solution with the pH of 3.5-10, and no phenomena such as blistering and deformation of the paper happen; and the sun-proof grade is 6 grade or more, and the water washing color fastness is high. The invention also provides a preparation method of the overcoating base paper usedfor the outdoor highly-strengthened plate, and the base paper has high practicability and scientific and reasonable operation, and is simple and practicable.
Owner:ZIBO OU MU SPECIAL PAPER
Full-automatic artificial airway management instrument
InactiveCN108096674AGuaranteed comfortAutomatic provisioningTracheal tubesBalloon catheterPeristaltic pumpSolenoid valve
The invention belongs to the technical field of medical instruments, and provides a full-automatic artificial airway management instrument. The full-automatic artificial airway management instrument comprises a box, wherein the box is provided with an operation panel, an artificial airway air bag interface, an air bag upper drainage tube, a normal saline supply tube and a gas feeding / discharging tube; solenoid valves are separately arranged on the artificial airway air bag interface, the air bag upper drainage tube, the normal saline supply tube and the gas feeding / discharging tube; peristaltic pumps are further separately arranged on the air bag upper drainage tube and the normal saline supply tube; an air pump is arranged on the gas feeding / discharging tube; the operation panel, the peristaltic pumps, the solenoid valves and the air pump are connected with a CPU arranged in the box; and the CPU is further connected with a power supply module and a pressure acquiring chip. The full-automatic artificial airway management instrument is skillful in design and simple and convenient to operate; and the technical problems that in the prior art, when an artificial airway is used, the working intensity is large, and the operation accuracy is poor are solved.
Owner:北京中安维华科技有限公司
Moringa oleifera plant beverage and preparation method thereof
InactiveCN107348289ADeworming sleep qualityImprove sleep qualitySugar food ingredientsFood ingredient as colourNutrientCaffeine
The invention discloses a moringa oleifera plant beverage and a preparation method thereof, relates to the technical field of health beverages, and aims to improve the technical problems in the prior art that the taking convenience degree and crowd accepting degree of a moringa oleifera leaf suspension beverage are relatively low. The moringa oleifera plant beverage disclosed by the invention does not contain caffeine, contains rich nutrients, has a health-care function and better taste, is suitable for people of all ages, and is suitable for various crowds to drink. The invention also provides a preparation method of the moringa oleifera plant beverage. The preparation method comprises the following steps: fully extracting moringa oleifera leaves to obtain moringa oleifera leaf extract, then mixing the moringa oleifera leaf extract with other raw material components, and controlling conditions, such as temperature and treatment technology, in preparation processes, thereby finally obtaining the moringa oleifera plant beverage product which contains rich nutrients and is delicious with slight sweetness and sour.
Owner:尹飞
Combined conveyor belt with automatic identification system
ActiveCN109867106AEasy to disassembleEasy to install and disassembleConveyor partsMechanical conveyorsCartonConveyor belt
Owner:GUANGDONG JIALONG FOOD
Woody chair leg bending method
InactiveCN109435000AMildew proofImprove qualityWood treatment detailsWood stock bendingEngineeringUltimate tensile strength
The invention discloses a woody chair leg bending method which comprises chair leg pretreatment, autoclaving, bending treatment, as well as mildewproof treatment, cleaning treatment and setting treatment after the bending treatment. According to the woody chair leg bending method, the steps are in close fit and are scientific and reasonable, so that the bending effect is improved, the rate of finished products is high, the bent chair leg is higher in quality and more smooth in surface, and the bending accords with the ideal state; and the treated chair leg has the anticorrosion and mildewproofperformance, is improved in toughness and strength before the treatment and deserves popularization and application.
Owner:安徽申华家俱有限公司
Bus route adjusting method based on historical passenger flow volume
ActiveCN111126681AUnderstand ride needsOptimize schedulingInternal combustion piston enginesForecastingTransit networkSimulation
The invention relates to a bus route adjusting method based on historical passenger flow volume. The method comprises the following steps: traversing passenger flow volume time sub-sequences of all lengths and clustering by using correlation coefficients, wherein a clustering result forms two time sequence sets, namely a positive correlation cluster set and a negative correlation cluster set whichrespectively represent route stations with the same riding behavior trend and route stations with opposite riding behavior trends, and analyzing the clustering result to obtain macroscopic passengertravel behavior characteristics between the routes and between the stations. The riding requirements of passengers can be known, stations with the same or similar passenger flow volume change can be found, a basis is provided for laying a bus network, setting a new route and adjusting an existing route in a city, decision support is provided for route adjustment, bus dispatching can be improved, and more scientific and reasonable operation is achieved. The invention does not depend on a specific scene, is more universal, and can be used for public transportation networks of various large and medium cities.
Owner:HUAQIAO UNIVERSITY
Industrial control software test system and software test method
The invention discloses an industrial control software test system and a software test method. The industrial control software test system comprises a system test log, a program structure test unit, aprogram running unit, a staged test unit and a cloud remote test unit; the program structure testing unit comprises a black box testing unit and a white box testing unit which are respectively used for testing results and internal structures; the program running unit has a static test and a dynamic test, the static test is carried out when a program does not run, and the dynamic test is carried out when the program runs; the staged test unit comprises a system test, a unit test and an integration test. The invention provides an industrial control software test system and a software test method, which cover creation of a system test log, test of a program structure, test of program operation, periodic test and cloud remote test, test software more comprehensively, scientifically and reasonably, and are beneficial to normal operation of the software.
Owner:NANJING CHENXIAO SOFTWARE TECH CO LTD
Construction waste recycling and crushing equipment and using method thereof
ActiveCN109894186AImprove crushing effectImprove recycling qualityMagnetic separationGrain treatmentsLarge sizeImpurity
The invention relates to a construction waste recycling and crushing equipment and a using method thereof. The equipment comprises a machine box, a discharging device, a crushing device, a impurity removing device and a collection box; and the crushing device comprises a first crushing device and a second crushing device, the discharging device is arranged at the upper end of the machine box, thefirst crushing device is arranged at the lower end of the discharging device, the impurity removing device is arranged at the lower end of the first crushing device, the second crushing device is arranged at the lower end of the impurity removing device, and the collection box is arranged at the lower end of the second crushing device. The method comprises the following steps that construction waste is treated by the discharging device, large-size materials sequentially pass through the first crushing device and the impurity removing device, small-size materials directly enter the impurity removing device, and the impurity removing device enters the second crushing device after being treated, and finally enters the collection box. According to the construction waste recycling and crushingequipment, centralized treatment of the large-size building waste is realized, resources are saved, the equipment operation is stable, the efficiency is high, the service life is long, various metalsdoped in the construction waste are separated, and the recovery processing quality of the construction waste is improved.
Owner:LIUPANSHUI NORMAL UNIV
Selenium-rich instant nostoc commune chips and preparation method thereof
InactiveCN108497371AFull of nutritionDeliciousFood ingredient as taste affecting agentFood ingredient as mouthfeel improving agentBiotechnologyMonosodium glutamate
The invention discloses selenium-rich instant nostoc commune chips and a preparation method thereof and relates to the technical field of food processing. The selenium-rich instant nostoc commune chips are prepared from a main material and auxiliary materials; the main material is nostoc commune; and the auxiliary materials comprise the following components in percentage content counted by the main material: 20%-25% of lily root powder, 30%-40% of black bean powder, 2%-3% of monosodium glutamate, 2%-3% of edible salt, 2%-3% of soy sauce, 4%-6% of xylitol, 3%-5% of edible oil, 0.0005%-0.001% ofselenized carrageenan, 0.0005%-0.001% of locust bean gum, 0.2-1.5% of sodium carboxymethyl cellulose and 0.5%-2% a compound swelling agent. The selenium-rich instant nostoc commune chips are delicatein appearance, crisp in mouthfeel and delicious in taste and also contain rich nutritional components and higher content of trace element selenium.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY
sunroof
ActiveCN105089211BImprove air tightnessGuaranteed uptimeRoof coveringBuilding braking devicesEngineeringAir tightness
The invention discloses a skylight, which comprises glass, a first frame, a second frame located below the first frame and a lifting mechanism, the glass is inlaid in the first frame, one side of the first frame and the second frame One side of the second frame is movably connected, and the lifting mechanism is located on the other side of the second frame, and is used to support or lower the first frame on this side, thereby opening or closing the second frame. The skylight is composed of the first frame and the second frame, and adopts a special hinged structure to effectively improve the watertightness of the wood-aluminum composite skylight, fundamentally solving the problem of water leakage of the flat roof skylight; The root sealing strip not only buffers the impact force on the second frame when the first frame is lowered, but also improves the airtightness of the skylight; the hook hinge mode and the limit strip used in the present invention make the first frame of the skylight rise and fall The process runs smoothly and is not easy to fall off and steal, which improves the safety and reliability of the skylight application.
Owner:TANGSHAN JINFUDUN ENERGY SAVING TECH CO LTD
Large multilayer penetration screening method and screening machine
PendingCN107127146ARealize concatenationAchieve parallelismSievingScreeningStructural engineeringLinear vibration
The invention discloses a large multilayer penetration screening method and a screening machine, belongs to the field of vibration screening machinery, and is designed to solve such problems as low treatment amount, weak screening effect and weak screen frame stress condition of a large vibration screen in a traditional multilayer classification screen. Vibrators are two rows of single shaft box type vibrators serially connected for parallel, large-gap and self-synchronization operation; the formation resultant force is a linear vibration trajectory; and an included angle between the vibration resultant force and a screen surface is 80-90 degrees to realize through screening of materials by penetrating through a screen. Two rows of serial-connected box vibrators are mounted on two independent mounting square beams of a screen frame by large span; and the center distance thereof is larger than 1 / 3 of the length of the screen box. A bridge vibrator mounting beam structure consisting of spring base reinforcing rib plates, the vibrator mounting square beams, the single shaft box vibrators and reinforcing beams enables the screen frame to achieve balanced stress and improved rigidity. The screening machine has such characteristics as reasonable and compact structure, stable self-synchronization, reliable operation and convenience in screen and vibrator installation and adjustment, and is suitable for large-scale development of multilayer screening machines.
Owner:威领新能源股份有限公司
Wind speed adjustable electric mosquito suction device
PendingCN111387164APrevent escapeReduce the chance of damageInsect catchers and killersMechanical engineeringPhysics
The invention discloses a wind speed adjustable electric mosquito suction device. A control module of the wind speed adjustable electric mosquito suction device comprises a variable-speed regulating circuit and a variable-speed regulating switch and is used for regulating the wind speed of a power module; a suction head part is divided into a suction head part and a connecting part, the connectingpart is connected to a power module through a filter screen structure, the outer diameter from the suction head part to the connecting part is evenly increased to form a conical structure, the suction head part is provided with a funnel-shaped pipeline structure extending towards an inner cavity of the suction head, and the pipeline structure and the side wall of the suction head part form a mosquito storage bin; and a through hole sealed by a gauze element is formed in the front end face of a suction head cover. According to the wind speed adjustable electric mosquito suction device, the mosquito catching rate is high, the mosquito damage rate is low, and mosquitoes can be effectively prevented from escaping.
Owner:上海市黄浦区疾病预防控制中心 +1
Liquid purification method
PendingCN112386931AEasy to operateSimple methodEnergy recuperation in distillationWater/sewage treatment by heatingThermodynamicsPurification methods
Owner:高云芝
Latex paper and its preparation method
ActiveCN109610225AImprove water resistanceGood flexibilityWater-repelling agents additionAbrasion apparatusAcrylic resinWet strength
Belonging to the technical field of paper making, the invention in particular relates to a latex paper and a preparation method thereof. The latex paper is prepared from the following raw materials byweight percentage: 40%-88% of wood pulp in terms of an absolute dry weight; 5%-20% of polypropylene fiber; 2%-10% of an assistant in pulp; 0%-10% of a pigment; and 5-20% of a surface assistant. The surface assistant is composed of acrylic resin, melamine resin and a water-resistant agent, and the assistant in pulp consists of aluminum sulfate, a water-resistant agent and a wet strength agent. Thelatex paper provided by the invention has the characteristics of good water resistance, high softness, high paper surface flatness, firm bonding of latex paper, a binder and abrasive particles, etc.The abrasive paper formed by processing of the latex paper provided by the invention can meet the requirements of high-quality water-resistant abrasive paper. The preparation method of the latex paperhas strong practicability, and the operation is scientific and reasonable, simple and feasible.
Owner:山东华沙新材料有限公司
Method for evaluating early-stage anti-freezing performance of concrete by drawing
ActiveCN109632634AScientific and reasonable operationEvaluation data is reliableUsing mechanical meansMaterial analysisAnti freezingQuality control
The invention relates to a method for evaluating the early-stage anti-freezing performance of concrete by drawing. The mechanical performance of concrete tends to decrease in winter construction due to influence of low temperature, especially, the concrete is frozen at subzero temperature; and freezing brings about additional intensity of the concrete, so that the mechanical performance of the concrete in the subzero temperature environment in winter construction is hard to master accurately, the progress of winter construction is influenced, the construction quality control is hard to ensure,intensity development of onsite concrete cannot be fed back accurately and timely, and further, it is more possible that there is risk in projects. A first concrete area and a second concrete area adjacent to the first concrete area are selected in a concrete project, temperature rise time Deltat for reaching a non-ice state of the first concrete area is obtained, the first concrete area is heated according to the temperature rise time Deltat, drawing test is carried out on the heated first concrete area and the unheated second concrete area, and the drawing force values are compared to evaluate the early-stage anti-freezing performance of the concrete. Thus, the anti-freezing performance of the concrete is evaluated.
Owner:HARBIN INST OF TECH
Precise high-quality plate-burning technology
InactiveCN107450281AReduce incidenceScientific and reasonable operationPhotomechanical exposure apparatusMicrolithography exposure apparatusScreen printingGeneration rate
The present invention proposes a precision and high-quality printing process, which includes the following steps: S1: processing of the plate base; S2: coating of the photosensitive adhesive layer; S3: determination of the best exposure time, first, calculate the approximate exposure time ; Then expose according to 50% of the screen of the approximate exposure time; then cover 1 / N of the screen, and then expose according to 25% of the approximate exposure time, that is, cover 1 / N more each time, and follow the previous exposure time Expose 50% of the exposure to get N areas with different exposure levels. After the screen is washed, dried, and proofed, the best exposure time is obtained; S4: Printing according to the best exposure time; S5: Printing at 70 When ‑80 blocks, replace the developer. The operation steps of the present invention are scientific and reasonable. The optimal exposure time is determined before the formal printing, which reduces the generation rate of waste plates in the printing. The superimposed exposure time is successively reduced by grading, so that multiple exposure times can be obtained at one time. Accurate test results, saving time, labor and cost.
Owner:郑州华美彩印纸品有限公司
Bridge cover girder construction supporting device
PendingCN107938523APrevent slippingIncrease the lengthBridge erection/assemblyArchitectural engineeringScrew thread
The invention discloses a bridge cover girder construction supporting device. The device comprises an iron box, a large through hole is formed in the middle of the iron box, a threaded hole communicated with the exterior of the iron box is formed in the side wall of one side of the large through hole, and the threaded hole is internally in threaded connection with a bolt; the upper side wall of the iron box is provided with a lower iron wedge, the upper end of the lower iron wedge is provided with an upper iron wedge, mounting holes are formed in the lower iron wedge and the upper iron wedge and internally connected with an opposite pulling rod, the two ends, located outside the mounting holes, of the opposite pulling rod are both provided with nuts, the two sides of the exterior of each mounting hole are provided with stiffened steel plates, and the stiffened steel plates are assembled in the inner side walls of the lower iron wedge and the upper iron wedge. The bridge cover girder construction supporting device is simple in structure, easy to operate, scientific and reasonable in design, short in production cycle, low in production cost and capable of being used for a long time after one-time manufacturing, no amortization occurs after turnover is conducted multiple times, and not only are unsafe factors of a jack avoided, but also the device can be easily adjusted and dismantled and meet production and safety requirements.
Owner:CCFED THE FIGTH CONSTR & ENG
Powder feeding dust removal device
ActiveCN103272712BReasonable structural designReduce labor intensityVortex flow apparatusThree stageEngineering
Owner:大庆市考维尔自动化设备制造有限公司
A method for filtering stream cut attachments
The invention provides a method for filtering flow-cut attachments. The filter surface of the filter plate is impacted by the flow rate of the liquid, and the impact is separated from the attachments intercepted by filtering on the filter surface, and then circulated through the circulation interception system. The mixed liquid with the attachments circulates and intercepts the attachments into the interceptor, realizing the detachment of the filter surface from the attachments. The invention is scientific and reasonable, simple, practical and efficient, and realizes rapid cleaning and continuous filtration.
Owner:高云芝
Preparation method of grain granule for maintaining beauty
InactiveCN105901619AConvenient for daily consumptionEasy feedingFood shapingFood ingredient functionsSide effectSlurry
The invention discloses a preparation method of a grain granule for maintaining beauty and relates to the technical field of food processing. The preparation method comprises the following steps of weighing materials, pretreating in batches, and combining and mixing to prepare slurry; performing high-low-temperature treatment, and then concentrating and drying to obtain a final product. The preparation method disclosed by the invention has the beneficial effects that a preparation process of the grain granule, provided by the invention, is simple in processing method, and is scientific and reasonable in operation steps; the prepared grain granule is accurate in dosing and high in nutrient value, has the effects of clearing vivotoxin, resisting aging, moisturizing skin and promoting metabolism, and has the advantages of easily-obtained raw materials, low price, no toxic and side effects and suitability for being taken for a long time.
Owner:ANHUI LEISHI AGRI TECH
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