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42results about How to "Hierarchical implementation" patented technology

Automatic fruit grading device

The invention relates to an automatic fruit grading device. The grading device comprises a box body, wherein the upper part of the box body is provided with an input conveying belt; the outlet of the input conveying belt is positioned above a transparent buffer basket; the transparent buffer basket is in a trumpet shape with a large upper part and a small lower part; the internal diameter of an elastic outlet on the lower part of the transparent buffer basket is smaller than the external diameter of fruits to be graded; a triangular steering device is arranged below the transparent buffer basket; the left side of the triangular steering device is positioned on a first output conveying belt, and the right side of the triangular steering device is positioned on a second output conveying belt; a rack is arranged at the bottom of the triangular steering device and is meshed with a power gear; a rotating shaft of the power gear is rotatably arranged on the box body; a spectrum camera is arranged on the side of the transparent buffer basket and is connected with an intelligent grading distinguishing module; the intelligent grading distinguishing module is connected with a control motor capable of rotating positively and negatively; the control motor is arranged on the box body; and an output shaft of the control motor is connected with the rotating shaft of the power gear. The automatic fruit grading device can reduce labor amount and improve production efficiency and reliability.
Owner:ZHEJIANG UNIV

Walnut kernel grading method and walnut kernel grading device based on machine vision

The invention relates to the technical field of grading and tracking based on machine vision, in particular to a walnut kernel grading method and walnut kernel grading device based on the machine vision. The walnut kernel grading method based on the machine vision sequentially comprises the following steps that historical sample data are obtained, images are processed, the images are segmented, anoriginal characteristic matrix is established, characteristics are selected, a model is founded, and grading and tracking are carried out. According to the walnut kernel grading method and walnut kernel grading device based on the machine vision, the structure is reasonable and compact, and use is convenient. After walnut kernel images are collected through the machine vision, tracking and grading are carried out on the walnut kernels by a PC host, after the walnut kernels reach a grading position, and the walnut kernels are blown into a grading discharge groove in a method of air-blowing, sothat grading of the walnut kernels is realized. The characteristics of bin19, K1 and bin15 are adopted, and a naive bayesian classification method with the best classification effect is utilized as agrading model of the walnut kernels. The grading processing is high in speed, automatic grading of dynamic walnut kernels can be realized on a conveying platform, manual grading is replaced, and labor is saved.
Owner:XINJIANG AGRI UNIV

Circulating fluidized bed boiler system for achieving low nitrogen oxide discharge

InactiveCN105805730AImprove fluidization characteristicsWell mixedFluidized bed combustionStaged combustionFlue gasEngineering
The invention discloses a circulating fluidized bed boiler system for achieving low nitrogen oxide discharge. The circulating fluidized bed boiler system comprises a boiler, a cyclone separator, a dust remover and an induced draft fan which are sequentially connected. The circulating fluidized bed boiler system further comprises a primary air supply system and a secondary air supply system. A flue gas recirculation pipe is guided out of the rear portion of the induced draft fan and connected with the primary air supply system and the secondary air supply system in parallel. The secondary air supply system comprises a secondary air fan, a secondary air pipe, a plurality of secondary air vertical pipes arranged on the outer sides of a front wall and a rear wall of the boiler and secondary air nozzles, wherein the secondary air nozzles are arranged on a water cooling wall, connected with the secondary air vertical pipes and arranged in a dilute phase area of the boiler in a layered manner. According to the circulating fluidized bed boiler system, part of flue gas is mixed into primary air, the fluidization characteristic of a dense phase area during low-load running is improved, part of flue gas is mixed into secondary air, the air speed of the secondary air nozzles can be increased easily, a local high-temperature area is avoided, and generated NOx is reduced. By means of the secondary air arrangement manner of the system, the disturbance function of the flue gas in a hearth is increased, fuel is combusted fully, and the generated NOx is reduced.
Owner:QINGDAO JINTIAN THERMAL POWER CO LTD

Pre-locating shake-off layering harvester

ActiveCN108419528AImprove shake rateReduce surface damage rateRenewable energy machinesPicking devicesElectric machineryEngineering
The invention provides a pre-locating shake-off layering harvester, which solves the problems in the prior art that winter jujubes are difficult to harvest and the harvesting efficiency is low. The pre-locating shake-off layering harvester comprises a stander, a wide-tooth shake-off mechanism, a layering pre-locating mechanism, a distance measuring mechanism, a sector unfolding collection mechanism, a roller-shaft baffle plate transmission mechanism and a threaded roller grading mechanism, wherein the stander is provided with a parallel four-rod protraction mechanism, and the parallel four-rodprotraction mechanism is driven by a first motor arranged on the stander; the wide-tooth shake-off mechanism is arranged on the parallel four-rod protraction mechanism, and the wide-tooth shake-off mechanism is driven by a second motor arranged on the stander to vibrate and used for shaking off fruits; the layering pre-locating mechanism is arranged on the layering pre-locating mechanism; the distance measuring mechanism is installed on the front end of the stander and used for detecting a distance to a trunk; the sector unfolding collection mechanism is arranged below the wide-tooth shake-off mechanism; one end of the roller-shaft baffle plate transmission mechanism is disposed on a lower end opening of the sector unfolding collection mechanism; and the threaded roller grading mechanismis arranged on one side of the roller-shaft baffle plate transmission mechanism and used for grading the transferred fruits.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Wheat steeping device with classifying function

The invention discloses a wheat steeping device with a classifying function, comprising a classifying screen and a wheat steeping slot, wherein the classifying screen is arranged at the top of the wheat steeping slot and is obliquely arranged, the wheat steeping slot is divided into two wheat steeping chambers; the lower part of the cylinder of the wheat steeping slot is a circular truncated conebottom, the circular truncated cone bottom is in a funnel shape and the bottom is in a circular arc shape, ventilation pipes are arranged in the two wheat steeping chamber, each ventilation pipe is formed by two straight pipes and a flat S-shaped pipe, the two ends of the flat S-shaped pipe are connected with the straight pipes, the two straight pipes respectively penetrate through the top and thebottom of the wheat steeping slot, the flat S-shaped pipe is positioned in the middle of the circular truncated cone bottom, and the bottom of the wheat steeping slot is fixedly connected with a discharge pipe, an exhaust pipe and a drain pipe. The wheat steeping device with a classifying function, disclosed by the invention, can steep wheat of different sizes separately, so that the two kinds ofwheat both achieve a good steeping quality, and further the overall growth quality of the wheat can be improved; and meanwhile, uniform ventilation of the wheat steeping slot is realized, and waste gas such as CO2 can be exhausted timely.
Owner:黄林海

Thermal-insulation microsphere particle grading device

The invention discloses a thermal-insulation microsphere particle grading device. The device is characterized in that a grading channel is provided with at least two levels of vertically arranged turning channels, the front and rear side walls of the turning channels are aligned to the front and rear edges of receiving hoppers respectively, each of the left side wall and the right side wall of each turning channel is formed by connecting vertical upper sections and lower sections inclined leftwards, air outlets are formed in the connection positions of the upper sections and the lower sections of the left side wall of each turning channel, air inlets are formed in the connection positions of the upper sections and the lower sections of the right side wall of each turning channel, horizontal air pipes are connected to the air inlets and connected with a fan or a compressed air tank, lower edges of the left and right side walls of the bottommost turning channel are aligned to the left and right edges of receiving hopper groups, the upper edge of the turning channel at the lower part is connected with the lower edge of the turning channel at the upper part, and a falling hopper is connected with the upper edge of the topmost turning channel through a conical cover and is provided with a falling channel having the same width as the inside dimension of the front and rear part of the turning channel. The thermal-insulation microsphere particle grading device can realize grading, can realize one-time multi-grade separation, is high in efficiency and can remove dust.
Owner:ANHUI EMINENT BUILDING MATERIALS TECH

Dry carding and grading method and equipment for biomass long and short fibers

As for the problems that the fibrocyte and heter-cell tissue utilization in a biomass raw material has mutual influence and mutual restriction, and the traditional fiber grading method generates a great amount of sewage and is not suitable for industrialized utilization, the invention provides dry carding and grading method and equipment for long and short fibers of biomass raw materials. The method comprises the following steps of: classifying the raw materials; selecting the steam explosion condition for carrying out steam explosion treatment according to different raw materials; and charging the materials obtained after steam explosion treatment into fiber carding and grading equipment for grading to respectively obtain fiber bundle tissue and heter-cells. The steam explosion is coupled with mechanical carding and tissue grading; the carded and graded long fiber can be used for a high-quality fiber raw material of the industrial applications such as papermaking, spinning and the like; the fine fiber formed by parenchyma cells and the like can be used for producing biofertilizer and feed protein or producing a series of biochemical products, such as ethanol, butanol, 2,3-butanediol, xanthan gum and the like through enzymatic zymotechnics, and thereby the component grading separation, cleaning and high-value utilization of the biomass long and short fibers can be realized.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI

Secondary air distribution device used for circulating fluidized bed boiler

The invention discloses a secondary air distribution device used for a circulating fluidized bed boiler. The secondary air distribution device comprises the boiler, water walls arranged on the four walls of the interior of the boiler and provided with receding pipes and a secondary air system. The lower portion of the boiler is a dense-phase zone, and the upper portion of the boiler is a lean-phase zone. The secondary air system comprises a secondary air branch pipe, a plurality of secondary air stand pipes arranged on the outer side of the front wall of the boiler and the outer side of the rear wall of the boiler, and secondary air nozzles arranged on the water walls and connected with the secondary air stand pipes. The secondary air nozzles comprise the double nozzles and the single nozzles and are arranged in the lean-phase zone of the boiler in a layered mode. The receding pipes comprise the double-hole receding pipes and the single hole receding pipes. The disturbing effect of smoke in a boiler hearth is added through the secondary air distribution modes, fuel can be completely burnt, generation of NOx is reduced, grading of secondary air in the height direction is achieved, and grading of the secondary air in the horizontal direction is achieved.
Owner:QINGDAO JINTIAN THERMAL POWER CO LTD

Method of graded use of reverse flotation phosphorus concentrate pulp

PendingCN111659549AImprove competitiveness and economic efficiencyLow MER valueVortex flow apparatusFlotationOre concentrateSodium silicate
The invention provides a method of graded use of reverse flotation phosphorus concentrate pulp and relates to the technical field of phosphorus concentrate pulp classification. The method comprises the following steps of S1, crushing and ore-grinding raw ores with relatively high carbonate impurities, guaranteeing that ores of with grinding fineness of -20 meshes is greater than 80%, fully dissociating gangue minerals such as phosphorite and carbonate and controlling beneficiated pulp concentration at 25-28wt%; and S2, feeding the pulp into a first floatation stirring tank and a second floatation stirring tank for treatment, and adding an inhibitor and an adjustor sulfuric acid, sodium fluosilicate sewage and slag gallery return water into the first stirring tank, wherein the pH value of the pulp is controlled at 4.0-4.5. On a basis of rough concentrate obtained by reverse flotation rough concentration by a flotation column, graded phosphorus concentrate which is higher in quality andlower in MER value and overflow concentrate which is slightly inferior in quality and slightly high in MER value are obtained by cyclone classification, so that quality grading of the phosphorus concentrate is achieved, differential production of acid making is executed, and a purpose of superior use of superior ores, graded use and quality improvement and cost lowering is achieved.
Owner:云南云天化红磷化工有限公司

Powder metallurgical particle vibration grading device

ActiveCN106238334AProtects against Particle Sorting EffectsProtection against grading effectsGradingPhysicsPowder metallurgy
The invention discloses a powder metallurgical particle vibration grading device. The powder metallurgical particle vibration grading device comprises a vibration table and is characterized in that a vibration block is arranged on the vibration table, a slope is connected to the vibration block, side plates arranged in a bilateral symmetry manner are connected to the slope, a storage platform is connected to the upper end of the slope, a surrounding plate connected with the side plates is arranged on the platform, each side plate is divided into an upper segment and a lower segment from top to bottom along the slope, the upper segments of the two side plates are close to each other downwards and gradually along the slope, the lower segment of each side plate is sequentially and at least provided with two stages of screening areas from top to bottom along the slope, the two side plates in each stage of screening area are parallel, the distance between two parallel side plates in the upper stage of screening area is smaller than the distance between the two parallel side plates in the lower stage of screening area, and the two side plates between the two stages of screening areas are gradually away from each other along the slope from top to bottom, a layering plate is connected between two parallel side plates in each stage, and the distance between the layering plate on the upper stage and the slope is larger than the distance between the layering plate on the lower stage and the slope; the side, located at the lower end of the slope, of each layering plate before the tail stage is connected with a vertical plate, and the layering plates are connected with a discharging sliding way; the device is small, exquisite and free of hole blockage.
Owner:重庆九瑞金属材料有限公司

Method for grading test text reading difficulty of children based on Ross model

PendingCN113569556ARepresents difficultyStands for reading comprehensionData processing applicationsCharacter and pattern recognitionCorrelation coefficientAlgorithm
The invention discloses a method for grading test text reading difficulty of children based on a Ross model. The method comprises the following steps: finding text fragments involved in an answer of a reading understanding question in a text; calculating language variables of the text segments to serve as independent variables; converting the reading understanding score into a Logit value, and then converting the Logit value into a text difficulty value in a 200-1500 interval as a dependent variable; adopting a Pearson product difference correlation coefficient to screen out an independent variable with a high correlation coefficient with the dependent variable; and determining an optimal linguistic variable for predicting the dependent variable by adopting a least square method, and exporting an optimal matching function. According to the method, the Ross model and the score conversion method thereof are adopted to carry out difficulty level analysis on the text by using any number from 200 to 1500, the goodness of fit is high, and the method accords with the language characteristics of Chinese. Students can measure and calculate the difficulty level of reading the text by reading the text and completing 3-4 reading understanding questions corresponding to the text, the calculation is simple and rapid, and the method has good applicability and generalization performance.
Owner:HUAIHUA UNIV

Adjustable grid bar type round large-grain seed grading device

The invention discloses an adjustable grid bar type round large-grain seed grading device. The device comprises a box body, wherein the side walls on the left and right sides of the box body are respectively provided with arc-shaped grooves, a plurality of mounting holes are provided on mounting bars, a plurality of grid bars are arranged across both the arc-shaped groove, the left and right endsof each grid bar respectively extend out of the two arc-shaped grooves and are bent upward to form a lateral bending section, the plurality of bending sections on the same side are connected by adjusting plates, the plurality of lateral bending sections respectively run through a plurality of adjusting holes on the adjusting plates, the upper ends of the lateral bending sections at both ends of each grid bar are bent inward to form hooks, both ends of each grid bar are respectively inserted into the mounting holes on the mounting bars on both sides through the hooks, and the distance between the two adjacent grid bars is adjusted by adjusting the upper and lower positions of the adjusting plates to realize the classification of seeds in different sizes. Compared with the prior art, the adjustable grid bar type round large-grain seed grading device has the following advantages of being able to realize the classification of seeds in different size ranges and realize continuous and stepless adjustment of classification parameters.
Owner:CHUZHOU UNIV

A powder metallurgy particle vibration classification device

ActiveCN106238334BProtects against Particle Sorting EffectsProtection against grading effectsGradingBilateral symmetryUpper segment
The invention discloses a powder metallurgical particle vibration grading device. The powder metallurgical particle vibration grading device comprises a vibration table and is characterized in that a vibration block is arranged on the vibration table, a slope is connected to the vibration block, side plates arranged in a bilateral symmetry manner are connected to the slope, a storage platform is connected to the upper end of the slope, a surrounding plate connected with the side plates is arranged on the platform, each side plate is divided into an upper segment and a lower segment from top to bottom along the slope, the upper segments of the two side plates are close to each other downwards and gradually along the slope, the lower segment of each side plate is sequentially and at least provided with two stages of screening areas from top to bottom along the slope, the two side plates in each stage of screening area are parallel, the distance between two parallel side plates in the upper stage of screening area is smaller than the distance between the two parallel side plates in the lower stage of screening area, and the two side plates between the two stages of screening areas are gradually away from each other along the slope from top to bottom, a layering plate is connected between two parallel side plates in each stage, and the distance between the layering plate on the upper stage and the slope is larger than the distance between the layering plate on the lower stage and the slope; the side, located at the lower end of the slope, of each layering plate before the tail stage is connected with a vertical plate, and the layering plates are connected with a discharging sliding way; the device is small, exquisite and free of hole blockage.
Owner:重庆九瑞金属材料有限公司

Classification method and system for auxiliary devices of thermal power plant

The invention provides a classification method and system for auxiliary devices of a thermal power plant and relates to the technical field of the power plant. The system comprises a data obtaining device which is used for obtaining system data of the thermal power plant; a data statistic device which is used for carrying out statics on the devices of the thermal power plant, the functions of the devices, influences on a production process and influences on production cleaning performance according to the system data; a device division device which is used for dividing the devices according to functions and classes, thereby obtaining various classes of devices; a parameter obtaining device which is used for obtaining classification parameters of the devices, wherein the classification parameters are preset set according to the functions, the influences on the production process and the influences on the production cleaning performance; and a device classification device which is used for classifying the various classes of devices according to the classification parameters. According to the method and the system, the auxiliary devices are classified, and demands of DL / T 793-2012 are expanded, thereby forming a more complete technical system and enabling an application range to be relatively wide.
Owner:NORTH CHINA ELECTRICAL POWER RES INST +1

Circulating Fluidized Bed Boiler System Realizing Low NOx Emissions

InactiveCN105805730BImprove fluidization characteristicsWell mixedFluidized bed combustionStaged combustionFlue gasNitrogen oxide
The invention discloses a circulating fluidized bed boiler system for achieving low nitrogen oxide discharge. The circulating fluidized bed boiler system comprises a boiler, a cyclone separator, a dust remover and an induced draft fan which are sequentially connected. The circulating fluidized bed boiler system further comprises a primary air supply system and a secondary air supply system. A flue gas recirculation pipe is guided out of the rear portion of the induced draft fan and connected with the primary air supply system and the secondary air supply system in parallel. The secondary air supply system comprises a secondary air fan, a secondary air pipe, a plurality of secondary air vertical pipes arranged on the outer sides of a front wall and a rear wall of the boiler and secondary air nozzles, wherein the secondary air nozzles are arranged on a water cooling wall, connected with the secondary air vertical pipes and arranged in a dilute phase area of the boiler in a layered manner. According to the circulating fluidized bed boiler system, part of flue gas is mixed into primary air, the fluidization characteristic of a dense phase area during low-load running is improved, part of flue gas is mixed into secondary air, the air speed of the secondary air nozzles can be increased easily, a local high-temperature area is avoided, and generated NOx is reduced. By means of the secondary air arrangement manner of the system, the disturbance function of the flue gas in a hearth is increased, fuel is combusted fully, and the generated NOx is reduced.
Owner:QINGDAO JINTIAN THERMAL POWER CO LTD

A sorting device for thermal insulation microbeads

The invention discloses a thermal-insulation microsphere particle grading device. The device is characterized in that a grading channel is provided with at least two levels of vertically arranged turning channels, the front and rear side walls of the turning channels are aligned to the front and rear edges of receiving hoppers respectively, each of the left side wall and the right side wall of each turning channel is formed by connecting vertical upper sections and lower sections inclined leftwards, air outlets are formed in the connection positions of the upper sections and the lower sections of the left side wall of each turning channel, air inlets are formed in the connection positions of the upper sections and the lower sections of the right side wall of each turning channel, horizontal air pipes are connected to the air inlets and connected with a fan or a compressed air tank, lower edges of the left and right side walls of the bottommost turning channel are aligned to the left and right edges of receiving hopper groups, the upper edge of the turning channel at the lower part is connected with the lower edge of the turning channel at the upper part, and a falling hopper is connected with the upper edge of the topmost turning channel through a conical cover and is provided with a falling channel having the same width as the inside dimension of the front and rear part of the turning channel. The thermal-insulation microsphere particle grading device can realize grading, can realize one-time multi-grade separation, is high in efficiency and can remove dust.
Owner:ANHUI EMINENT BUILDING MATERIALS TECH

Process afterheat classification utilization system and purpose thereof

The invention provides a process afterheat classification utilization system and a method for efficient coproduction of electricity and high-grade heat by utilizing the system. The process afterheat classification utilization system not only can efficiently use external afterheat, but also can perform the classification conversion on the afterheat to output available energy to the external in such various forms as electricity and heat. After an evaporation heating device obtains the afterheat, a fluid A is vaporized by the evaporation heating device, and a fluid B is heated by the evaporation heating device; the fluid A and the fluid B respectively enter a turbine power generation device, and then, respectively enter a heat exchanger and a condenser; the condensed fluid B enters the heat exchanger after passing through a throttle valve; the fluid B and the fluid A exchange heat in the heat exchanger; then, the fluid A is pressurized by a pump to enter the evaporation heating device; and the vaporized fluid B is pressurized by a compressor to enter the evaporation heating device to finish circulation of the afterheat classification utilization system so as to obtain electric energy and heat energy. In addition, the selection and the matching of working fluids directly influence the afterheat utilization efficiency of the system.
Owner:DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD

A kind of sesame grain classification and cleaning system and method based on positive and negative pressure separation

The invention discloses a classification and cleaning system for sesame seeds separated by positive and negative pressure. The classification and cleaning system comprises a screening system (1), an impurity removal system (2) and a classification system (3). The screening system (1) comprising a hopper and at least one layer of filter screen for blocking impurities larger than the screen openings from entering the classification system (3); the impurity removal system (2) is used for removing impurities by conveying airflow towards the filter screen; the The grading system (3) is used for grading and cleaning sesame based on positive and negative pressure. According to the characteristics of sesame seeds, the present invention adopts a device combining positive and negative air pressure, so as to realize the classification of sesame seeds into good and bad grades. First, the sesame seeds are adsorbed to the seed suction hole of the separation drum through negative pressure, and then the separation drum is driven to rotate into the positive pressure zone by the transmission of the sprocket, and the sesame seeds are blown out from the seed suction hole by the positive pressure and transported to the collection bag through the seed collection bin. middle. The invention has many advantages such as safety, reliability, convenience and flexibility, and high efficiency.
Owner:CROP INST ANHUI PROV ACAD OF AGRI SCI

Grading device

The invention relates to a mussel grading device. The mussel grading device comprises a plurality of grading screen drums which are arranged in parallel at intervals, wherein the grading screen drumsare horizontally arranged and drum walls are close to each other; penetrating strip-shaped openings are formed in the grading screen drums; the length direction of each of the penetrating strip-shapedopenings is parallel to that of each of the grading screen drums; a plurality of penetrating strip-shaped openings are formed in the circumferential directions of the grading screen drums at intervals; the plurality of grading screen drums are driven by a driving unit to be rotated synchronously in the same direction; the width and the length of each of the penetrating strip-shaped openings are gradually increased along the conveying direction of materials; material receiving tracks are arranged in the drum cavities of the plurality of grading screen drums; the track surfaces of the materialreceiving tracks are perpendicular to the material supply directions of the grading screen drums in the horizontal and conveying direction; due to the rotary grading screen drums, mussels climb up along the surfaces of the grading screen drums, so that the mussels with smaller sizes can be fallen on the material receiving tracks from the corresponding penetrating strip-shaped opening formed in thefirst level of grading screen drum, and the mussels with larger sizes climb onto the second level of grading screen drum from the first level of grading screen drum, so that screening of the musselswith larger sizes can be realized, and grading of the mussels is realized.
Owner:王根节
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