103 results about "Mixing ratio" patented technology

The invention relates to the technical field of concrete, in particular to a concrete working viscosity and compressive strength prediction method based on statistical analysis, and the method comprises the following steps: S1, obtaining concrete component information and proportion information; s2, obtaining mixing conditions of concrete, and inputting the mixing conditions, the component information and the proportion information into a pre-constructed flow parameter prediction model to obtain flow parameters; s3, performing viscosity calculation on the flow parameter by using a preset constant term and a reference index to obtain the working viscosity of the concrete; s4, acquiring an environmental condition of a preset future time period; s5, inputting the concrete component information, the proportion information, the working viscosity and the environmental conditions into a pre-constructed compressive strength prediction model to obtain compressive strength; through scientific data processing and model optimization, more accurate working viscosity and compressive strength prediction results can be provided, and powerful support is provided for engineering decision making, so that the construction quality and the structure safety are effectively guaranteed.

To improve measurement accuracy.A concentration measurement device includes: an absorbance measurement unit configured to measure absorbance in a plurality of different wavelength regions for a mixed liquid in which different liquids are mixed; and a control unit configured to correct a concentration of at least one liquid on the basis of absorbance in the plurality of different wavelength regions. The absorbance measurement unit measures absorbance in two wavelength regions. The absorbance measurement unit measures absorbance in a spectrum. Particles contained in one of the different liquids are different from particles contained in another of the different liquids. Each of the different liquids is a suspension or a solution. The mixed liquid includes a white blood cell suspension and a red blood cell suspension. The control unit calculates a mixing ratio of a liquid mixed in the mixed liquid, from absorbance in the plurality of different wavelength regions. The control unit corrects the absorbance on the basis of a mixing ratio of a liquid mixed in the mixed liquid.

The invention discloses a gas density and mixing ratio online monitoring device and method, and in the device, a first conveying pipeline is communicated with a connector of a to-be-detected gas chamber; the first valve body and the flow controller are sequentially arranged on the first conveying pipeline. The mixing ratio detection module is arranged on the first conveying pipeline and located at a gas outlet of the flow controller. The first pressure sensor and the first temperature sensor are sequentially arranged on the first conveying pipeline and located between the first valve body and the flow controller. And an inlet of the gas storage tank is communicated with the first conveying pipeline. According to the device disclosed by the invention, gas in the gas chamber to be detected flows through the first conveying pipeline after the first valve body is opened and flows into the gas storage tank; when the gas in the gas chamber to be detected flows through the first conveying pipeline, the pressure and the temperature of the gas are detected by the first pressure sensor and the first temperature sensor, the flow is controlled by the flow controller, and the mixing ratio of the gas is detected by the mixing ratio detection module, so that the online monitoring of the gas density and the mixing ratio is realized.

The utility model discloses a natural material mixing and proportioning device, which relates to the technical field of material mixing and comprises a base, the top of the base is fixedly connected with a rectangular pipe, the top of the rear side of the rectangular pipe is provided with a feeding mechanism, the rectangular pipe is internally provided with a stirring mechanism, and two sides of the rectangular pipe are respectively provided with a circulating mechanism. The circulating mechanism comprises a circular pipe, a material returning pipe and a material discharging pipe are fixedly connected between the circular pipe and the rectangular pipe, a spiral rod is movably connected to the interior of the circular pipe through a bearing, and a second motor is fixedly connected to the top of the circular pipe. After multiple natural materials are introduced into the rectangular pipe in proportion through the feeding mechanism, the stirring mechanism can preliminarily stir the falling raw materials, the stirred mixed materials fall onto the ridge-shaped plate, flow towards the two sides, enter the two circulating mechanisms and are introduced into the rectangular pipe again to be stirred by the stirring mechanism, and circulation is repeated for multiple times; various natural raw materials can be quickly and sufficiently mixed together.

The invention provides a multi-source constraint reverse modeling method and system for ancient lake water chemical condition evolution, and relates to the technical field of mineral resource exploration, and the method comprises the steps: rock core element scanning, ore-bearing section XRD analysis, and obtaining of ancient lake water ion composition; judging the water chemical type of the ancient lake based on the water ion composition of the ancient lake, and determining the basic evolution path of the water chemical condition; measuring carbon, oxygen and sulfur isotopes, and analyzing isotope fractionation characteristics and control factors; a multiphase fluid mixing model is defined, a Monte Carlo algorithm is adopted to solve the mixing proportion, and reaction network initialization is carried out; dividing time steps of fresh water injection, evaporation concentration, salt precipitation critical periods and the like, carrying out dynamic simulation calculation, constructing a loss function between actual measurement and simulation results, carrying out back propagation correction by adopting an Adam optimizer, and verifying and optimizing the simulation results. The method has good applicability to the numerical simulation of the chemical condition evolution process of the ancient lake water.

The invention discloses an accurate lossless identification method for the real concentration of a filling body, belongs to the technical field of filling, and solves the problem that the real concentration of the filling body cannot be accurately measured after a goaf is maintained for a certain days. The method comprises the following steps: performing a hyperspectral scanning experiment on a test block by using a hyperspectral imager, extracting a surface spectral curve of the test block, collecting a modeling data set, dividing the modeling data set into a training set and a test set, performing iterative training on a concentration prediction model, loading a surface spectral curve of a filling body, executing the concentration prediction model, and outputting the concentration of the filling body. According to the method, the real concentration of the filling body is identified by utilizing a hyperspectral imaging technology, a sample does not need to be damaged, the method has the advantage of nondestructive detection, after the filling body concentration identification model is established, the corresponding concentration can be obtained after a test block with unknown concentration is scanned, the experiment detection period is greatly shortened, and the method has high efficiency.

A method includes introducing a first material component having a first permittivity and a second material component having a second permittivity to a mixing unit. The first and second material components are advanced through the mixing unit at a mixing ratio to form a material component mixture that is dispensed from the mixing unit. A third permittivity of the material component mixture, which is related to the first permittivity, the second permittivity, and the mixing ratio, is determined. The third permittivity is compared to a predetermined permittivity, which is related to the first permittivity, the second permittivity, and a predetermined mixing ratio. If the third permittivity differs from the predetermined permittivity by a threshold limit or more than the threshold limit, a corrective response is generated.

The invention discloses an in-situ calibration system and an in-situ calibration method for mixed gas measurement equipment, and relates to the technical field of insulating arc-extinguishing gas media. The system comprises an electric proportional valve which is configured to control the fixed gas cabin to be in at least two set output pressure states; the calibration gas cabin inflates the calibration pipeline in sequence based on each set output pressure state so as to change the pressure state of the calibration pipeline; the thermometer is configured to measure the temperature of gas in the calibration pipeline when the gas filling is finished; the pressure gauge is configured to measure the gas pressure in the calibration pipeline when inflation is finished; the SF6 concentration meter is used for measuring a gas density measurement value of the calibration pipeline when gas filling is finished; and the upper computer is used for calibrating the SF6 concentration meter according to the gas density measurement value, the gas temperature, the gas pressure and the set mixing ratio. By adopting the system, the in-situ calibration of the SF6 concentration meter can be completed by using the standard gas, and high-precision in-situ calibration can be realized.

The invention relates to the technical field of gas insulation of power equipment, in particular to a method, a system and equipment for quickly proportioning and mixing SF6 / N2 mixed gas in GIS (Gas Insulated Switchgear) equipment and a storage medium. GIS equipment geometric parameters are obtained, a pipeline model is constructed, and the effective volume of the equipment is derived based on a correction state equation introducing a compression factor Z; establishing a kinetic model of an SF6 / N2 diffusion rule, and simulating gas flowing, diffusion and mixing processes through a Standard k-epsilon turbulence model and a component transport model; performing real-time concentration detection on the mixed gas by using an infrared spectroscopy, and establishing a relation model of light intensity attenuation and gas concentration based on a Lambert-Beer law; and performing dynamic gas distribution control according to a detection result, and adjusting the flow of each gas branch through a mass flow controller to realize a target mixing ratio. Through multi-level technology integration, the technical problems of inaccurate volume calculation, non-uniform gas distribution and obvious detection hysteresis in a traditional mixing method are solved, and + / -0.5% mixing precision control and rapid mixing within 5 minutes are realized.

The utility model provides a composite fresh-keeping gas premixing device capable of adjusting the mixing proportion, which relates to the technical field of gas premixing, and comprises an input pipeline and a working mechanism, the working mechanism is arranged at the upper end of the input pipeline, and through the arrangement of the working mechanism, when the device is used, an efficient and accurate gas treatment process is realized; the filter assembly is driven to effectively introduce and purify the gas, the purity of the gas is ensured, a solid foundation is laid for subsequent treatment, the transfer assembly provides necessary storage and flow control for the gas, the stability of gas supply and the accuracy of proportional mixing are ensured, and the service life of the gas is prolonged. The proportion adjusting assembly realizes accurate control of the mixing proportion of different gases, which is crucial for meeting specific fresh-keeping requirements, the gas mixing assembly ensures full mixing of different gases, the mixing efficiency and uniformity are improved, and finally, the pressure adjusting assembly maintains the mixed gas within a proper pressure range, so that the fresh-keeping effect of the fresh-keeping device is improved. And the mixing effect and the safe and stable operation of equipment are ensured.

The invention discloses a high-arsenic hot spring replenishment surface water resource quantity determination method, device and equipment, a medium and a product, and relates to the technical field of water resource evaluation and ecological environment protection. The method comprises the following steps: acquiring information data of a target research area; screening symbolic characteristic parameters of the information data by adopting a statistical analysis method and geochemical diagrams to obtain screened information; based on the law of conservation of mass and the end member mixing theory, a multivariate mixing model is constructed according to the screening information; solving the multivariate mixed model by adopting a least square method to obtain a mixing ratio; the mixing ratio is used for analyzing spatial distribution characteristics of the mixing process of the high-arsenic hot spring and the surface water in combination with water flow path survey information; and determining the replenishment resource quantity of the high-arsenic hot spring according to the mixing proportion. The method aims at improving the accuracy and efficiency of determining the surface water resource quantity supplied by the high-arsenic hot spring.

A method for separating a fluorocarbon gas, the method including feeding a mixed gas that includes two or more kinds of fluorocarbon gases having different molecular diameters from each other to a porous membrane and separating a gas composition in which a mixing ratio of one kind of a fluorocarbon gas selected from the two or more kinds of fluorocarbon gases is increased or a single gas, where the porous membrane includes a zeolite.

The application relates to the field of concrete mixing ratio experiments, in particular to a mixing ratio experiment device and method for ultra-high performance concrete, which comprises a round mold, a feeding cylinder, a limiting assembly, a baffle, a driving assembly, a mounting plate, a knocking hammer, a knocking assembly and a bottom plate. The limiting assembly is used for quickly locking the feeding cylinder and the round mold through cooperation of a pull rod, a spring, a rotating disc, a driving groove, a driving rod and a limiting block; the driving assembly is used for driving the baffle to be synchronously opened and closed through transmission of a knob, a first rotating rod, a cone wheel set and a threaded rod, so that mechanical scraping is realized; and the knocking assembly is used for realizing alternate knocking of the round mold through linkage of a rotating handle, a third rotating rod, a push block, a connecting rod and the knocking hammer. The application has the advantages of convenient assembly and disassembly, reliable sealing, accurate scraping, high efficiency and the like, effectively eliminates bubble interference and human errors, and improves the accuracy, reliability and operation efficiency of the slump experiment of the ultra-high performance concrete.

The utility model discloses a gas state monitor for displaying the mixing ratio of mixed gas, which relates to the technical field of electric power and comprises a body and a connector, the body comprises a shell, a gas state detection component and an intelligent processing unit, the gas state detection component and the intelligent processing unit are mounted in the shell, and the connection direction of the connector is the side wall or the rear part of the shell. One end of the connector is connected with the gas state detection assembly, the gas state detection assembly is electrically connected with the intelligent processing unit, and the intelligent processing unit is used for carrying out data processing on the gas characteristics of the mixed gas detected by the gas state detection assembly and obtaining the mixing ratio of the mixed gas; and the intelligent processing unit can output the obtained mixing ratio data of the mixed gas. According to the utility model, the mixed gas density and the mixed gas mixing ratio can be monitored, and the safe operation of a power grid is ensured.

The invention provides a performance adjusting method and system for a mixing ratio continuously adjustable steam generator, and belongs to the technical field of liquid rocket engine tests. According to the method, a mapping model of the mixing ratio, flow and steam parameters is established, a reference working medium is selected to be kept constant, and non-reference working medium flow is calculated to achieve mixing ratio stepless adjustment; the mixing ratio is kept stable through differential pressure closed-loop control; independently adjusting the water working medium to correct the steam temperature; and the optimal mixing ratio is searched in a steady state. Stepless continuous adjustment of the mixing ratio and decoupling control of the total flow of a working medium are achieved, and the problem that traditional grading adjustment is insufficient in precision is solved. The influence of pipeline resistance fluctuation is eliminated through a pressure difference closed loop, and the stability of the adjusting process is guaranteed; independent temperature adjustment of the water working medium avoids mutual interference with the mixing ratio, and the steam quality is improved; and the combustion efficiency and the system performance are remarkably improved through the steady-state optimization function.

Method, for example implemented by computer means, for determining an improved surface adapted for a progressive addition lens, wherein the method comprises: - obtaining an initial surface adapted for the progressive addition lens, - determining a smoothed surface based on the initial surface, - determining a mixing ratio map between the smoothed surface and the initial surface at each point of the initial and smoothed surfaces, the mixing ratio map being determined so as to exclude a primary viewing zone of the initial surface, - determining an improved surface adapted for the progressive addition lens by mixing the initial surface and the smoothed surface on a point-by-point basis using the determined mixing ratio map.

The invention provides a method and equipment for determining the proportion of multiple fused salt components, a medium and a product, and relates to the technical field of fused salt materials. The method comprises the following steps: determining a plurality of pure components forming the multi-element molten salt, and determining an interaction coefficient between any two pure components; determining a plurality of mixing ratios of the multi-element molten salt based on the plurality of pure components; and based on the multiple mixing ratios and the interaction coefficient between any two pure components, respectively determining melting enthalpies corresponding to the multiple mixing ratios, and determining the mixing ratio with the maximum melting enthalpy in the multiple mixing ratios as the component ratio of the multi-element molten salt. According to the method, the melting enthalpy error caused by the interaction of anions in the molten salt system is corrected through the interaction of different pure components, rapid prediction of the melting enthalpy of the multi-element mixed molten salt is achieved, the prediction precision of the melting enthalpy is remarkably improved, and the method is suitable for the complex multi-element mixed molten salt system.

An SF6 / CF4 mixed gas preparation and direct filling device and method with real-time correction of the mixing ratio, belonging to the technical field of operation and maintenance of electrical equipment, which solves the problem of stratification of SF6 gas and CF4 gas existing in the SF6 / CF4 mixed gas filling and supplementing operation; the input flow rates of SF6 and CF4 gases are controlled by the first and second mass flow controllers. After the input SF6 and CF4 gases enter the buffer tank through the gas mixing nozzle and are mixed evenly, the mixing ratio of the SF6 / CF4 mixed gas is detected by the thermal conductivity detector, and finally filled into the electrical equipment; the gas mixing nozzle effectively mixes the SF6 and CF4 gases evenly, eliminates the stratification phenomenon, makes the detection result of the mixing ratio more credible and has higher accuracy; by controlling the first and second mass flow controllers, the mixing ratio of the SF6 / CF4 mixed gas is adjusted in real time to ensure that the mixing ratio of the filled SF6 / CF4 mixed gas meets the requirements.

This utility model relates to the field of mining engineering equipment technology, and in particular to an intelligent control device for mine filling. It includes a base, a main control box fixedly connected to the top of the base, and two conveying barrels mirror-distributed around the main control box. Flange pipes communicating with the inner walls of the two conveying barrels are fixedly connected to the tops of the two conveying barrels. Flow meters are fixedly connected to the inner walls of the flange pipes. A mixing tank is installed on the outer wall of the base, and a stirring rod is rotatably connected to the inner wall of the mixing tank. A liquid level sensor is fixedly connected to the inner wall of the mixing tank. The flow meter collects the material conveying volume of the main material bin and the auxiliary material bin in real time. The controller automatically compares the actual conveying ratio with the set value, avoiding the mixing ratio error caused by manual observation of material level and manual speed adjustment, ensuring that the ratio of main material to auxiliary material remains stable within a reasonable range. A concentration sensor monitors the mixing state of the filling slurry in the mixing tank, ensuring the basic quality of the filling slurry and improving the strength stability of the filling material.

The invention provides a high-pressure mixed gas preparation method considering temperature and pressure influences, and relates to the technical field of unconventional natural gas extraction. Comprising the following nine steps: determining constant parameters, determining proportioning concentration, initializing a pressure value, calculating the partial pressure of each component of mixed gas, vacuumizing a device, filling a component I gas, vacuumizing a pipeline, filling a component I gas and analyzing the components of the gas. According to the method, the partial pressure of each component gas is accurately calculated in combination with the compression factor, so that high-precision and flexible preparation of the mixed gas components can be realized, high cost caused by frequent purchase of prefabricated gas is avoided, trace gas can be accurately prepared according to actual requirements, and gas consumption and cost are greatly reduced. And meanwhile, the repeatability and the reliability of the gas preparation process are improved, and the device is particularly suitable for experiment conditions of high pressure and various gas components.

The invention discloses a method and a system for calculating the mixing proportion of multi-end-member water mass mixed particles. The method comprises the following steps: calculating the contribution proportion of each water mass end member of a mixing area by adopting an isotope mixing model; generating initialization information of a multi-end-member water mass mixed particle model by using the delta < 18 > O and salinity of each end member and derivative information; based on the contribution proportion and the initialization information, constructing a multi-end-member water mass mixed particle model; simulating a simulated delta < 18 > O-salinity linear relation of a mixing area under all iterative mixing proportion combinations based on a multi-end-member water mass mixed particle model; and calculating the mixing ratio of each end member by comparing the simulated delta 18O-salinity linear relationship with the actual delta 18O-salinity linear relationship. According to the method, the multi-end-member water mass mixed particle model is constructed, and iterative calculation and fluctuation simulation are combined, so that accurate quantification of a water mass mixing ratio and quantitative analysis of mixing sufficiency are realized.

The invention discloses a preparation method of a soft soil similar material meeting the requirements of transparency and similarity, which ensures the transparency of the material by accurately controlling the preparation of mixed oil, calibrating an Abbe refractometer and standardizing the mixing ratio of n-dodecane to 15 # white oil and the stirring and standing process; the white carbon black dispersion and quartz sand mixing and stirring processes are strictly standardized, and it is guaranteed that the mechanical properties such as the material weight and the internal friction angle are similar to those of real soft soil. Meanwhile, strict operation standards are set in the steps of model filling, air exhaust saturation, sample sampling and the like, the environment and measuring tool conditions are controlled, and parameters and reserved samples are completely recorded. The method effectively solves the problems that transparency and mechanical properties of a traditional material are difficult to balance, and configuration lacks accuracy and repeatability, and provides a reliable soft soil similar material preparation means for geotechnical engineering research and engineering practice.

Water softener includes a soft water tank, a neutralization tank, bypass flow path that sends, as untreated water, raw water to a downstream side of the neutralization tank without passing the raw water through the soft water tank and the neutralization tank, mixer that mixes the untreated water sent from bypass flow path and the neutralized soft water sent from the neutralization tank to generate mixed water, flow rate adjustment unit that adjusts a supply amount of at least one of the untreated water and the neutralized soft water to mixer, and controller that controls a mixing ratio between the untreated water and the neutralized soft water by flow rate adjustment unit. Controller includes mixing ratio determination unit that determines the mixing ratio between the untreated water and the neutralized soft water based on instruction information related to at least one of a regeneration time during which a regeneration process can be performed and a water softening degree of the mixed water, and flow rate controller that adjusts the supply amount to be adjusted by flow rate adjustment unit such that the mixing ratio determined by mixing ratio determination unit is obtained.

This application relates to a method, system, terminal, and medium for producing lightweight aggregates based on hazardous waste, belonging to the field of hazardous waste treatment technology. The method includes: obtaining information on the type of hazardous waste; pre-treating the hazardous waste according to the type information to obtain waste to be processed; collecting the chemical composition and elemental content of the waste to be processed; generating a mixing ratio and an auxiliary material ratio based on the chemical composition and elemental content, using a preset processing standard as a reference; mixing the waste to be processed according to the mixing ratio, and adding auxiliary materials according to the auxiliary material ratio to form a mixed waste; and sintering the mixed waste to obtain lightweight aggregates. This application has the effect of improving the sintering effect of lightweight aggregates.

The present application relates to the technical field of vulcanization pressure control, and specifically to a vulcanization pressure control method and system for a vulcanizer, the method comprising: determining a pressure response index by analyzing the correlation between all mixing ratio data and all pressure data in each time period, and combining the degree of chaos of all pressure data in the frequency domain; analyzing the difference between the average levels of all the dynamic response indices and the pressure response indices of all time periods, and comprehensively considering all mixing ratio data, all pressure data, and all temperature data within a preset time period before the current moment, determining the urgency of pressure compensation, and correcting the proportional coefficient at the current moment to control the pressure of the vulcanizer at the current moment. The present application solves the problem of prediction failure of traditional linear extrapolation models in continuously changing scenarios, and improves the timeliness and accuracy of pressure compensation.

The application relates to the technical field of industrial control, and discloses a control method for hydrogen production from natural gas, which comprises the following steps: obtaining historical correlation information and real-time process parameters of raw material natural gas; determining a load prediction result of the raw material natural gas based on the historical correlation information; determining a target mixing ratio of steam and carbon and an actual mixing ratio of steam and carbon according to the real-time process parameters and the load prediction result; generating a feedforward control signal according to the load prediction result; generating a feedback control signal according to the deviation between the target mixing ratio and the actual mixing ratio; superimposing the feedforward control signal and the feedback control signal into a target control signal, and adjusting a steam pipeline and a fuel gas pipeline according to the target control signal. Through the technical scheme, the problems of control lag of the mixing ratio of steam and carbon and low hydrogen production efficiency in the related art are solved, the timeliness of the control of the mixing ratio of steam and carbon is improved, and the hydrogen production efficiency is improved.

Provided is an analysis method enabling accurate estimation of the types, amounts, and mixing ratios of fillers present in an elastomer composition, including whether the sample contains two or more fillers. The present disclosure relates to an analysis method including estimating the type, amount, and mixing ratio of at least one filler in an elastomer composition containing an elastomer component and the filler, the method including estimation based on the property, particle size, and particle size distribution of the filler.

The present application relates to a kind of verification method and device of mixed gas density relay with humidity detection function, belong to density relay verification technical field, solve the problem that humidity and gas mixing ratio cannot be detected simultaneously when carrying out density relay verification in existing.The method comprises: in the verification chamber, fill mixed gas to pressure balance;The verification chamber is cooled by refrigeration, the actual pressure in the verification chamber, actual temperature, the light energy value of light after the action of the verification chamber, and the measured pressure read by the pressure sensor of density relay;During the cooling process, the pressure sensor of density relay is verified by comparing actual pressure and measured pressure;The humidity detection and mixing ratio detection of mixed gas in the verification chamber are carried out in turn by monitoring the multiple change rates of light energy value.Various tasks are integrated, and the comprehensive operation and maintenance efficiency is improved.

To enable accurate measurement of a flow rate of a gas flowing in a non-metallic tube. An ultrasonic flowmeter includes a first wedge member having a first angle, a second wedge member having a second angle, and a flow rate measurement unit that measures a flow rate of a gas based on a propagation time difference of a longitudinal wave excited by a tube. The first angle and the second angle are configured such that the tube excites both a longitudinal wave and a shear wave, and a mixing ratio of the shear wave to the longitudinal wave is 10% or less.

The invention relates to the technical field of additive manufacturing, and particularly discloses a method for improving the forming quality of silver alloy additive manufacturing. By synergistically utilizing the characteristics of high fine powder yield of gas atomized powder and high sphericity degree of plasma rotating electrode atomized powder, the mixing ratio of the two types of powder is determined, and the mixed powder with the high laser absorptivity of 15-53 microns is obtained through forward and reverse alternate grinding of a planetary ball mill. By optimizing L-PBF parameter forming, the problem of fusion defects caused by high reflectivity of the silver alloy to 1064nm laser is solved. The laser absorptivity of the mixed powder is improved to 48.3-49.4%, the density of a formed part is larger than or equal to 97.5%, and the forming quality and the precious metal powder utilization rate are both considered. According to the method, the melting forming quality of the silver alloy laser powder bed is remarkably improved, and the problems that due to the high reflectivity of current silver alloy laser, absorption is difficult, and a traditional powder preparing method cannot give consideration to the fine powder rate and the sphericity rate, and the cost of precious metal is high are solved.