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Smart community management system based on Internet of things
InactiveCN106100672ARealize location monitoringRealize safety warningIndividual entry/exit registersTwo-way working systemsThe InternetSmart community
The invention discloses a smart community management system based on the Internet of things, comprising a smart community monitoring host used as an intelligent application layer. The smart community monitoring host comprises a community intelligent service system, a community unit management system, and a community intelligent management system. The community unit management system is used for managing each household unit of each building, and is connected to the smart community monitoring host through a property management switch. The community intelligent service system comprises a community convenience medical system. The community intelligent management system comprises a community positioning monitoring system, a community safety early warning system, and a commodity access control system.
Owner:TERMINUSBEIJING TECH CO LTD
Mining method with adjustable and controllable structure size of gentle dip medium-thickness ore body strip column reconstructed stope
ActiveCN104632220AReduce climbing angleReduce lossesUnderground miningSurface miningLoss rateEngineering
The invention discloses a mining method with an adjustable and controllable structure size of a gentle dip medium-thickness ore body strip column reconstructed stope. The work of a recovery process is safe by adopting an advanced top cutting anchor rod support roof; efficient recovery of ores is realized by middle-deep hole ore break down, retreating type recovery and ore removal of a carry scraper; a studding is not formed along the inclined direction of an ore body and thus the loss rate of ores is reduced; and a goaf roof is supported by a waste stone slip casting glue structured artificial strip column so that the effective management on ground pressure of the stope is realized. The mining method with the adjustable and controllable structure size of the gentle dip medium-thickness ore body strip column reconstructed stope, disclosed by the invention, has the advantages that the working is safe, the production efficiency is high, the loss rate of the ores is relatively low, and few filling raw materials are needed.
Owner:CENT SOUTH UNIV
Air inflation and tire repair integration machine
InactiveCN103802795AReduce weightSafe and efficient operation processVehicle servicing/repairingLiquid systemAutomotive engineering
The invention relates to the technical field of automobile spare parts, and discloses an air inflation and tire repair integration machine. The air inflation and tire repair integration machine comprises an integration machine case, an air inflation device and a tire repair device, wherein the air inflation device and the tire repair device are installed inside the integration machine case. The air inflation and tire repair integration machine is characterized in that the air inflation device and the tire repair device are connected into a whole to form the integration machine case; the air inflation device comprises an air compressor (1), a pressure gage (2), an air inflation pipe insertion head (8) and an air inflation pipe (9); the tire repair device comprises a tire repair liquid bottle (3) and a tire repair liquid system (11); the air compressor (1) is installed on one side of the integration machine case, and the pressure gage (2) is arranged on the upper surface of the integration machine case; the tire repair liquid bottle (3) is a tank and is installed on one side of the integration machine case. The air inflation and tire repair integration machine is safe, efficient, convenient to carry and worth popularization, saves the energy and protects the environment.
Owner:贾芳兰
Mechanized upward-slicing wedging mixed filling mining method
ActiveCN106894817AIncrease profitGuaranteed StrengthUnderground miningSurface miningMining engineeringUltimate tensile strength
The invention discloses a mechanized upward-slicing wedging mixed filling mining method. When mining is conducted through the upward horizontal slicing filling process, upward stoping and filling are conducted with each slice being 3-4 m, and slices from bottom to top are alternately subjected to full tail sand cementing filling and waste stone wedging mixed filling. During wedging mixed filling, waste stone is stacked upward to form a quadrangular frustum pyramid. The laying range of the bottom waste stone is arranged according to the size of a stope, and certain spacing is kept with an adjacent stope. Tail sand cementing filling is still conducted on the two sides of a waste stone pile, and making contact with upper and lower layered tail sand cementing filling bodies is conducted, the whole strength of a mixed filling body is guaranteed, and dilution caused by caving of an ore body or surrounding rock at the time of being unstable is stopped. When the upward horizontal slicing filling process is adopted, the strength of the filling body can be guaranteed, and a large quantity of the downhole waste stone can be consumed, so that the waste stone is not out of a pit, and accordingly the cementing filling material is saved, and the filling cost is reduced effectively.
Owner:CENT SOUTH UNIV
Operation system for aggregate utility analysis of logistics information and configured equipment of operation system
InactiveCN102184480AReflect accuracyIntegrity guaranteedData processing applicationsTransmissionLogistics managementComputer module
The invention discloses an operation system for aggregate utility analysis of logistics information and configured equipment of the operation system. The operation system comprises a desktop client terminal device, a logistics information server, a central management device, a logistics node server and an advertising node server, wherein the logistics node server and the advertising node server effectively transmit information through a wireless network and the internet and the central management device conducts combination control. The operation system is characterized in that as the central management device, the logistics node server and the advertising node server are added in the system, the system is perfect and can operate under the combination control; and as an information utility analysis module is added in the logistics information server and an information utility analysis arithmetic module is added in the central management device, the completeness and the normativity of the essential elements of the logistics information can be ensured, besides, the operation system can conduct credit assessment, reflect the timeliness, the practicability, the correctness and the reliability of the information, help a user finding valuable logistics information as soon as possible and promote the transaction rate of system service as well as the safer and more efficient operation in logistics industries.
Owner:山东朗进通信有限公司
Packing container for flat display glass
ActiveCN1621324AReduce the number of peopleImprove work efficiencyRigid containersDamagable goods packagingFlat glassDisplay device
Provided are a packing box for a flat glass plate for a display and a packing method thereof. The packing box for a flat glass plate for a display has: a frame for placing the basic skeleton of the packing box for the flat glass plate for a display; The placement surface of the lower end of each of the above-mentioned flat glass plates for displays is at the rear end of the placement surface and is perpendicular to the placement surface, supporting the back surface of the back of the above-mentioned flat glass plates for displays; the flat glass plate fixing device is used to fix the above-mentioned placed A flat glass plate for a display; and an integrated packaging material, which is integrally fixed on the above-mentioned placement frame and can be freely opened and closed, and is used to freely open and close the open space of the above-mentioned placement frame exposing the above-mentioned flat glass plate for a display. A large number of flat glass plates for displays can be placed in an L-shaped frame, and the packaging material and the box are integrated to improve work efficiency.
Owner:SAMSUNG CORNING PRECISION MATERIALS CO LTD
Device for nailing base sheet fasteners
InactiveUS6213371B1Safe and efficient to operateInexpensive to manufacture and maintainStapling toolsNailing toolsFastenerEngineering
A device for base sheet fasteners used in conjunction with nail gun. The nail gun includes main and security triggers that a user has to simultaneously activate while lifting and dropping the nail gun. A slidable spring loaded longitudinal member is pushed back in line with the housing of a receiving assembly causing a leg to activate the safety trigger. This allows a user to place a base sheet fastener onto a magnetic hammer while the hammer is in the retracted position and upon dropping the nail gun, the magnetic hammer automatically strikes the surface thereby nailing the base sheet fastener in a safe and efficient manner. The resulting device permits the continuous installation of base sheet fasteners on a surface. A substantially cylindrical assembly is provided with a longitudinal cutout with cooperative dimensions to receive the base sheet fasteners.
Owner:CABRERA PEDRO
Offshore floating integrated facility platform powered by green energy
InactiveCN109178228ASafe and efficient operationHave experimental conditions for scientific researchWaterborne vesselsVessels for aircraftFresh water organismWaste recycling
The invention discloses an offshore floating integrated facility platform driven by green energy, including a main body of a semi-submersible platform, a sustainable power supply system, an ocean observation system, an integrated test system, a connection system, an ocean communication and relay system, a freshwater system and an organic waste recycling and energy utilization system which are installed on the main body of the semi-submersible platform. The offshore floating integrated facility platform driven by green energy takes the large-scale semi-submersible wave energy power generation platform as a carrier to construct an offshore sustainable power supply system composed of wave energy + solar energy + energy storage + standby diesel generator set, is equipped with seabed, underwater, water surface and sky detection equipment and instruments, and is equipped with general and special equipment to form a complete observation equipment launch, operation, recovery support system, toensure the safety and efficiency of scientific research equipment in a variety of operating conditions; and the offshore floating integrated facility platform driven by green energy is integrated with natural gas hydrate, hydrology, meteorology and other research cabins to form an integrated ocean laboratory, and has open sea test conditions for long-term scientific research.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI
Method and system for preventing catalyst blockage
ActiveCN102698597ASafe and efficient operationContinue to operateDispersed particle filtrationFlueFastener
The invention discloses a system for preventing catalyst blockage. The system comprises a longitudinal flue (2) and a transverse flue (3), wherein a dust gauze A (1) is arranged in the longitudinal flue (2); only one end of the dust gauze A (1) is movably connected with the longitudinal flue (2); a slide fastener rapping device A (4) is connected above the dust gauze A (1), and is connected with the dust gauze A (1); a dust hopper A (5) is arranged below the dust gauze A (1); an ash hopper lever meter (20) is arranged in the dust hopper A (5); and the lower end of the dust hopper A (5) is connected with a discharging device A (6). According to the system, dust particles of which the particle diameters are over 4 centimeters can be prevented from entering a catalyst layer, dust particles on the dust gauze can be discharged automatically under the condition of no stop of a boiler, and the system can run safely, efficiently and continuously at low pressure loss.
Owner:CHINA HUADIAN ENG +1
Multi-functional two-way pressurization and vibration brick making machine
The invention relates to a multi-functional two-way pressurization and vibration brick making machine, comprising a material storing hopper, a material distributing mechanism, a brick outlet mechanism, a hydraulic unit and a complete machine automatic control device; the brick making machine is characterized in that the lower ends of an upper pressure head master cylinder (8) and an upper head auxiliary cylinder (9) are provided with an upper travel mechanism (10), a lower travel mechanism (13) is a die cavity; an underbeam (7) is internally provided with a vibration lifting mechanism (14); a brick outlet mechanism (4) is provided with an air bag brick clamping mechanism; a hydraulic system is applied to the material distributing mechanism, the pressure head, the travel mechanism, the uplifting and brick outlet motion; the complete machine automatic control device of the brick making machine is a PLC programming control. The invention features high degree of automation, safe and effective utilization, good product compactedness, fine quality, extensive material adaptability, so that the brick making machine is not only suitable for producing concrete bricks but also for processing industrial wastes such as sand, stone, pulverized fuel ash, slag and the like into various raw bricks which are formed without being subjected to sintering.
Owner:WUHAN BANDAO HEAVY IND
Large rolling shaft seal welding tool
InactiveCN105033527AReduce labor intensityEasy to adjustWelding/cutting auxillary devicesAuxillary welding devicesFree rotationElectric machinery
Owner:铜陵重钢机械装备有限公司
Obstacle-crossing multifunctional wall-climbing robot
The invention relates to an obstacle-crossing multifunctional wall-climbing robot. The obstacle-crossing multifunctional wall-climbing robot is technically characterized in that the robot comprises amiddle platform, two vehicle bodies and two limiting knuckles, the two vehicle bodies are completely of the same structure and are symmetrically installed on the two sides of the middle platform through the limiting knuckles, and the two limiting knuckles are both two-freedom-degree limiting knuckles and allow the two vehicle bodies to have two rotation freedom degrees relative to the middle platform. The obstacle-crossing multifunctional wall-climbing robot is reasonable in design, the obstacle-crossing capacity is good, meanwhile, the load capacity is strong, the adaptability to the wall surface form and the curvature change is good, the robot can be quickly detached, transported and installed and easily and conveniently controlled to move and make a turn, and the requirements for motionand operation in the complicated environment can be met.
Owner:HEBEI UNIV OF TECH
Automatic guiding system and method of tower crane
ActiveCN103979443AReduce tedious workReduce construction costsCranesLoad-engaging elementsLiquid-crystal displayHigh definition
The invention discloses an automatic guiding system and an automatic guiding method of a tower crane. The automatic guiding system comprises a control host, a spherical camera, a hard disk video recorder, a liquid crystal display, a height sensor and a range sensor, wherein the control host, the hard disk video recorder and the high-definition liquid crystal display are mounted in a cab of the tower crane; the spherical camera is mounted at the most front end of the tower crane; the height sensor is mounted at a balance arm winch of the tower crane; the range sensor is mounted at a suspension arm winch of the tower crane; the spherical camera, the height sensor and the range sensor are respectively connected with the control host; the control host and the spherical camera are connected with the hard disk video recorder, and the hard disk video recorder is connected with the liquid crystal display. According to the automatic guiding system and the automatic guiding method, the spherical camera mounted at the most front end of the suspension arm is utilized for guiding a tower crane driver to safely work according to frames photographed along the synchronous rotation of a lifting hook, and an accident caused when the tower crane driver cannot clearly see a working site is avoided.
Owner:合肥嘉联智能科技有限公司
Multifunctional two-way pressure vibration brick making machine
InactiveCN101733824BStir quicklyAvoid unevennessCeramic shaping apparatusAutomatic controlMachine control
Owner:WUHAN BANDAO HEAVY IND
Disturbance rejection mechanical arm repeating motion planning method with saturation characteristic
PendingCN108422424ASafe and efficient operationGuaranteed safe operationProgramme-controlled manipulatorPotential riskEngineering
The invention provides a disturbance rejection mechanical arm repeating motion planning method with saturation characteristics. The method comprises the following steps: 1) designing quadric form disturbance rejection mechanical arm repeating motion performance indexes with saturation characteristics, and generating a quadric form optimization analysis scheme; 2) converting the quadric form optimization analysis scheme in the step 1) into secondary planning; 3) dissolving the secondary planning in the step 2) by using a secondary planning dissolver; 4) conveying the dissolution results in thestep 3) to a slave computer controller, thereby driving a mechanical arm to move. The invention provides saturation designing of performance indexes of mechanical arm motion planning, and a too rapidjoint angle speed phenomenon caused by too large deviation can be remarkably inhibited. Potential risks of the mechanical arm in the motion process can be effectively avoided by preventing too large swinging speeds of the mechanical arm; in addition, the disturbance rejection performance of the mechanical arm is improved, and the improvement has positive significance and wide application in the field of engineering application.
Owner:LANZHOU UNIVERSITY
Novel bridge type ship unloader operation method
ActiveCN108622679AOperational scienceImprove economic efficiencyConveyorsLoading/unloadingEngineeringMechanical equipment
The invention relates to a novel bridge type ship unloader operation method, and belongs to the technical field of port bridge type grab ship unloader operation. The technical scheme is characterizedin that the grabbing position of a grab (2) is determined according to the height of bulk cargos in a cabin (1), and the direction of the grab (2) is controlled by moving the position of a trolley (8); grabbing is started from the first layer of the first row, cargoes on the odd number rows are grabbed firstly, and then cargoes on the even number rows are grabbed; the even number rows become protruding rows manually firstly; the cargoes on the first layers and the second layers of the even number rows are grabbed, and after the cargoes on the even number rows are completely grabbed, the odd number rows form protruding rows; and operation is carried out according to the rule, and grabbing operation of the bulk cargos in the cabin (1) is completed. The novel bridge type ship unloader operation method has the beneficial effects that joining is compact, safety and high efficiency are achieved, the function of mechanical equipment can be achieved to the greatest extent, and the ship unloading efficiency is improved.
Owner:PORT OF CAOFEIDIAN ORE TERMINAL CO LTD
Automatic sample pre-treatment instrument control system
ActiveCN105549458AImprove throughputReduce labor intensityProgramme controlComputer controlMicrocomputerCentrifugation
The invention discloses an automatic sample pre-treatment instrument control system. The system comprises an instruction input module, a display module, a main control module, an acquisition module, a driving module and a single-chip microcomputer set. According to the system, functions of liquid feeding, stirring, heating and centrifugation required by sample pre-treatment are integrated into one body, full automation for pre-treatment on a to-be-detected sample is realized, properties of large sample flux, simple operation and high efficiency are realized, labor intensity of operators is reduced, and detection efficiency is greatly reduced. The system can not only realize one-key automatic operation for pre-treatment on a foodstuff safety detection sample, realizes the high humanization degree, is convenient to operate, realizes all operation steps on a touch display screen, has no external button, avoids a problem of line aging damage, has low requirements for the operators and is suitable for basic-level operators.
Owner:WUXI ZODOLABS BIOTECH
Full-automatic microbial nucleic acid extraction and detection device and extraction and detection method
ActiveCN112725162ARealize automatic operationFast and efficient automated extraction and detection processBioreactor/fermenter combinationsBiological substance pretreatmentsMicroorganismRobotic arm
The invention relates to a full-automatic microbial nucleic acid extraction and detection device and an extraction and detection method. The device comprises a mechanical arm, a plurality of reagent tubes, a low-temperature plasma generation device, a magnetic needle probe, a heating rod and a liquid guide tube, the mechanical arm comprises a plurality of mechanical arms, and the mechanical arms are connected with ports of the reagent tubes, the low-temperature plasma generation device, the magnetic needle probe and the heating rod in a matched mode; wherein the low-temperature plasma generating device, the magnetic needle probe and the heating rod respectively extend into the reagent tubes in a matching way, the bottoms of the plurality of reagent tubes are respectively connected with the liquid guide tubes, the reagent tubes are movably connected with the liquid guide tubes, and switches are arranged at the joints, so that the reagent tubes are communicated or closed with the liquid guide tubes. The method can be used for extracting and analyzing the nucleic acid of microorganisms in gas, solid and liquid samples in various places, and the working efficiency is improved.
Owner:SHANDONG UNIV
Fuse carrying pliers
The invention discloses fuse carrying pliers, which comprise two hinged plier bodies. Two plier handles which face to each other are formed on the two plier bodies along one side of a hinged position and two plier noses which face to each other are formed on the other side of the hinged position. The fuse carrying pliers additionally comprise two arc-shaped baffles which penetrate through the plier handles, wherein the shapes of the sides of the two arc-shaped baffles are matched with each other. The cross sections of the two arc-shaped baffles are arc-shaped and are arranged on two adjacent circular-arc sections of the same circle. Two notches which face to each other are arranged on the internal side walls of the plier noses adjacent to end parts. The two notches form one cylindrical hole. The tool which is provided by the invention and is used for replacing a fuse conveniently has the advantages that the safety of working personnel can be protected, the arc-shaped baffles enable the working personnel to operate more safely, conveniently and efficiently, the fuse carrying pliers are more rapid to use, the jaw is improved according to the shape of the fuse, the fuse carrying pliers are more fit to the size of the fuse during operation, and the speed and the safety factor of the replacement of the fuse of a combined junction box are further improved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Shot blasting room for metal plate machining
PendingCN110842794AEasy to pile upReduce wasteAbrasive machine appurtenancesAbrasive blasting machinesEngineeringStructural engineering
The invention relates to a shot blasting room for metal plate machining. The shot blasting room comprises a blasting room body, a grid plate is arranged on the bottom in the blasting room body, a shotblasting mechanism is arranged above the grid plate, a separation and dust collection mechanism is arranged below the grid plate, the separation and dust collection mechanism comprises a separation assembly and a dust collection assembly, the separation assembly comprises a filter net, a vibrator and two guide plates, the dust collection assembly comprises a fan, an air supply pipe, a dust discharge pipe and a collection box, and the shot blasting mechanism comprises a loading assembly and an adjusting assembly. In the shot blasting room for metal plate machining, the height and the angle ofa nozzle can be adjusted, different workpieces are subjected to automatic comprehensive shot blasting treatment, work is safer and efficient, the shot blasting quality is better, dust is prone to being stacked, wind is adopted for conveying dust, cleaning is efficient and convenient, effective shots can be separated and recycled, the raw material waste is reduced, and production cost is reduced.
Owner:苏州市金典精密制造有限公司
Automatic driving luggage trailer for airports
PendingCN112793804ASafe and efficient operationSafe and efficient drivingFreight handling installationsItem transportation vehiclesAutopilotLidar
The invention relates to an automatic driving luggage trailer for airports. The automatic driving luggage trailer comprises a trailer head, wheels and at least one section of tray. A control module interacting with an upper system in the airport is arranged in the trailer head; a main laser radar used for monitoring the conditions around the trailer and a height detector used for limiting the height are arranged at the top of the trailer head; and each section of tray is provided with a weight detector. The control module can safely and efficiently control the automatic driving luggage trailer according to an instruction of the upper system; and during control, the main laser radar on the top of the trailer head can monitor the condition around the trailer body in real time and feed back a monitoring result to the upper system, so that normal driving is prevented from being influenced by obstacles in a safe range in the driving process of the vehicle. The height detector can monitor the placing height of the goods on the vehicle, and thus the danger that the goods are prone to toppling over in the driving process when placed too high is avoided. The weight detector can monitor the load of the tray to ensure that the load is within a safe range, so that safe and efficient driving of the vehicle is realized.
Owner:中科大路(青岛)科技有限公司
A Mechanized Upward Layer Wedging and Mixed Filling Mining Method
ActiveCN106894817BIncrease profitGuaranteed StrengthUnderground miningSurface miningMining engineeringUltimate tensile strength
The invention discloses a mechanized upward-slicing wedging mixed filling mining method. When mining is conducted through the upward horizontal slicing filling process, upward stoping and filling are conducted with each slice being 3-4 m, and slices from bottom to top are alternately subjected to full tail sand cementing filling and waste stone wedging mixed filling. During wedging mixed filling, waste stone is stacked upward to form a quadrangular frustum pyramid. The laying range of the bottom waste stone is arranged according to the size of a stope, and certain spacing is kept with an adjacent stope. Tail sand cementing filling is still conducted on the two sides of a waste stone pile, and making contact with upper and lower layered tail sand cementing filling bodies is conducted, the whole strength of a mixed filling body is guaranteed, and dilution caused by caving of an ore body or surrounding rock at the time of being unstable is stopped. When the upward horizontal slicing filling process is adopted, the strength of the filling body can be guaranteed, and a large quantity of the downhole waste stone can be consumed, so that the waste stone is not out of a pit, and accordingly the cementing filling material is saved, and the filling cost is reduced effectively.
Owner:CENT SOUTH UNIV
Batch drilling well wellhead design and assembling-disassembling method for modular drilling machine
InactiveCN107503703ASolve the high risk factorIncreased cost of resolution timeSealing/packingWellheadSpecial design
The invention discloses a batch drilling well wellhead design and assembling-disassembling method for a modular drilling machine. The wellhead design comprises the following design of supporting facilities: wellhead deck design, split bell mouth design, bell mouth fixing mode design, bell mouth fixed suspension design, grouting pipeline fixed design of bell mouths, reflux pipes and metering pumps, bell mouth variable diameter design, bell mouth variable diameter hoisting special tool design, telescopic inner and outer drum horn tube design, sealing design of special pressure plate sealing or gas inflatable pneumatic tires, lifting pipe hoisting special design, and special lifting pipe suspending channel design which are easy enough to operate. The batch drilling well wellhead design and matched wellhead assembling-disassembling method for the modular drilling machine provided by the invention can solve the problem of time consumption caused by frequently moving of a derrick in batch drilling operation of the modular drilling machine, reduce hoisting risks and risks of high falling objects caused by dissembling and throwing wellhead parts and optimize assembling and disassembling method of wellheads, and further are simple and convenient in design and simple in operation mode.
Owner:CHINA NAT OFFSHORE OIL CORP +1
Water level control method for boiler steam drum
PendingCN107191913ASafe and effective controlSafe and efficient operationBoiler indication operationsBoiler controlAuto regulationSteam pressure
An embodiment of the invention provides a water level control method for a boiler steam drum and belongs to the technical field of boiler control. The method comprises the steps as follows: when the initial actual water level is not in the expected boiler steam drum water level range, the initial steam pressure and the initial steam temperature in a boiler are detected, the real-time steam quantity is calculated according to the initial steam pressure and the initial steam temperature, and a boiler adjusting valve is controlled for addition of the initial water injection quantity not smaller than the actual steam quantity; after the initial water injection quantity is added, a water level sensor is reused for detecting the subsequent actual water level of the boiler steam drum, the subsequent steam pressure and the subsequent steam temperature in the boiler are detected again, and the boiler steam drum water level theoretic value at the moment is calculated according to the subsequent steam pressure and the subsequent steam temperature; the deviation value of the subsequent actual water level relative to the boiler steam drum water level theoretic value is calculated, and the adjusting valve is controlled again on the basis of the deviation value to input the subsequent water injection quantity corresponding to the deviation value. Thus, the water level of the boiler steam drum is adjusted automatically.
Owner:林琳
Method for rapidly determining content of hyaluronic acid in fermentation liquor
ActiveCN111551513AQuick checkSimple and fast operationPreparing sample for investigationColor/spectral properties measurementsBiochemistryOrganic chemistry
The invention discloses a method for rapidly determining the content of hyaluronic acid in fermentation liquor. The method comprises the following steps: adsorbing and purifying fermentation liquor; diluting the adsorbed and purified supernatant and then carrying out enzymolysis; thoroughly performing enzymolysis on hyaluronic acid in fermentation liquor to obtain 4, 5-unsaturated disaccharide, detecting ultraviolet absorption values of the fermentation liquor before and after enzymolysis, substituting a difference value of the ultraviolet absorption values of the fermentation liquor before and after enzymolysis into a standard curve of the concentration of the 4, 5-unsaturated disaccharide and the ultraviolet absorption values, and calculating and obtaining the content of the hyaluronic acid in the fermentation liquor. The method is simple and convenient to operate and high in specificity, hyaluronic acid in the fermentation liquor does not need to be purified, the number of samples detected in batches is large, the method can be widely applied to detection of the content of hyaluronic acid in the field of hyaluronic acid fermentation, and a convenient and efficient tool is provided for optimization and process monitoring of a hyaluronic acid fermentation process.
Owner:BLOOMAGE BIOTECHNOLOGY CORP LTD
Isotope capsule for well logging
PendingCN112240201AStrong process controllabilityImprove timelinessConstructionsBittering AgentsWell logging
The invention discloses an isotope capsule for well logging. The isotope capsule comprises a capsule body, an isotope solid tracer, a capsule cover and an additive; the capsule body and the capsule cover are connected to form a capsule; the isotope solid tracer and the additive are both located in a cavity in the capsule; and the additive comprises a bitter agent and an odor agent. Isotope solid tracer powder is fixedly arranged in a closed space by adopting a capsule shell, so that the controllability of an isotope is improved, the pollution channel is controlled from the source of the isotope, and secondary pollution does not exist in the whole process of delivery, transportation, split charging and use; the dosage of the isotope solid tracer in the capsule shell is determined accordingto the minimum dosage of production well injection profile logging, after capsule isotope manufacturing is completed, the secondary split charging link is avoided in the distributing and assembling process, the timeliness of the assembling and using link is improved, an operator can carry out on-site reassembling after the isotope attenuation phenomenon occurs, and the production efficiency is improved, and operation is safer, more efficient, simpler and more convenient, and personal injuries are avoided.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Molten forging steel used for manufacturing eccentric shaft of crusher and smelting method for molten forging steel
The invention discloses molten forging steel used for manufacturing an eccentric shaft of a crusher and a smelting method for the molten forging steel. The molten forging steel used for manufacturing the eccentric shaft of the crusher comprises the following chemical components in percentage by weight: 0.40-0.47wt% of C, 0.25-0.35wt% of Si, 0.70-0.90wt% of Mn, 0.015-0.025wt% of Nb, 1.00-1.20wt% of Cr, 0.20-0.30wt% of Mo, less than or equal to 0.005wt% of S, less than or equal to 0.020wt% of P, less than or equal to 0.0008wt% of O, less than or equal to 0.0001wt% of H, and the balance of Fe and inevitable impurities. The preparation method comprises the following steps: pre-treating and deeply desulfurizing molten iron by a KR process, carrying out LD converter smelting, carrying out LF steel ladle furnace smelting, carrying out VD furnace vacuum refining, and the like. The molten steel provided by the invention has high cleanliness and low impurity content; and the eccentric shaft forging steel produced by the molten steel has high strength, good toughness and good wear and corrosion resistance, and is not liable to deform and crack for a long time in work, so that long-time safe and efficient operation of the crusher is ensured.
Owner:WUKUN STEEL
Method for measuring position of neutral axis of engineering structure through modal strain
InactiveCN105547205ASolve measurement problems of neutral axis under difficult to apply static loadImprove applicabilityMeasurement devicesClassical mechanicsEngineering structures
The invention discloses a method for measuring the position of a neutral axis of an engineering structure through modal strain. In a strain mode, the distribution of modal strain of the same cross section accords with a plane cross-section assumption, so the method can calculate the position of the neutral axis through measuring the modal strain of two different positions on the cross section. The method comprises five steps: dynamic strain response collection, strain modal analysis, modal strain extraction, neutral axis position coefficient extraction, and neutral axis height calculation. The method is clear in concept, is simple in flow, is suitable for traffic loading, environment excitation and artificial excitation, achieves the high-precision measurement of the position of the neutral axis of the engineering structure under the a non-static force, is high in market competiveness, and provides technological support for guaranteeing safe and effective operation of the engineering structure.
Owner:SUZHOU UNIV
Tower crane operation virtual simulation monitoring system provided with head tracking functions
InactiveCN106698217AImprove safe operation rateSafe and efficient operationLoad-engaging elementsCranesDisplay deviceMonitoring system
The invention discloses a tower crane operation virtual simulation monitoring system provided with head tracking functions. The tower crane operation virtual simulation monitoring system provided with head tracking functions is capable of increasing the probability of tower crane safety operation, changing a traditional monitoring method based on onsite monitoring by commanders and informing of operators by the commanders, and improving the efficiency and safety of tower crane operation process. The tower crane operation virtual simulation monitoring system comprises a tower crane operation virtual simulation software system, a head tracking interactive system, and an environment information acquisition system; the tower crane operation virtual simulation software system comprises an environment rendering module and a tower crane scene simulation module; the environment rendering module is connected with a display; the head tracking interactive system comprises an operator, a head posture change acquisition module, and a head posture detection module; detection results of the head posture detection module are sent to the environment rendering module; and the environment information acquisition system comprises a multisensor system, and an environment information acquisition server; the environment information acquisition server is connected with the tower crane scene simulation module; and the environment information acquisition system is used for transforming real dynamic change scene into virtual dynamic change scene.
Owner:由国峰
Winching equipment
InactiveCN106517014AAvoid situations that change the tension of the wire ropeAvoid damageWinding mechanismsSocial benefitsReduction drive
The invention discloses winching equipment which comprises a motor, a motor coupler, a speed reducer, a spool coupler and a spool body, wherein the motor coupler, the speed reducer, the spool coupler and the spool body are sequentially connected; a steel wire rope is arranged on the outer part of the spool body. The winching equipment further comprises a tension adjustment device arranged between the spool body and the spool coupler; the tension adjustment device comprises a taper sleeve movably connected with an output shaft of the spool coupler in a sleeving manner, and a spool inner bushing matched with the taper sleeve, and further comprises a lock nut arranged on the output shaft of the spool coupler, and a disk-shaped spring arranged between the taper sleeve and the lock nut. Equipment damage and a safety accident which arise from undetermined hoisting height are avoided, winching operation is matched with operation of other equipment operation accurately and timely, the operation can be carried out safely, and the winching equipment is high in practicability and convenient to popularize and use, and has obvious social benefit.
Owner:SHANDONG IRON & STEEL CO LTD
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