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15results about How to "Realize the filtering effect" patented technology
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Waste residue recovery device capable of achieving multiple screening
The invention discloses a waste residue recovery device capable of achieving multiple screening, and relates to the technical field of steel machining, the waste residue recovery device comprises a base, at least four supporting frames are fixedly installed at the top of the base, every two supporting frames form a group, and the two groups of supporting frames are symmetrically arranged on the base; a multi-screening assembly is arranged at the top of the supporting frame; through the arrangement of the sliding grooves and the sliding plates, one set of sliding plates slide in the sliding grooves, then the stop rods in the sliding plates fixedly connected with the first sliding blocks are moved away from the position over the screen plate, only the stop rods parallel to the first lead screws shield the screen plate, and therefore waste residues larger in size can pass through screen holes formed by the stop rods and the screen plate; and in addition, the mode that the blocking rods horizontally move above the screening plate to adjust the size of the screening holes is achieved, and the situation that the screening holes are blocked by the large waste residues can be effectively avoided.
Owner:LANLING JIUZHEN ENVIRONMENTAL PROTECTION TECH CO LTD
Crushing and screening integrated device for mining
PendingCN119114245AImprove crushing effectImprove filtering effectGrain treatmentsMining engineeringGear wheel
Owner:JIANGXI MINGXIN METALLURGY EQUIP CO LTD
Catalyst processing and grinding mechanism
ActiveCN222428141URealize the filtering effectGuaranteed screening effectCocoaGrain treatmentsPtru catalystElectric machinery
The utility model relates to a catalyst processing grinding mechanism which comprises a grinding box, a collecting box is slidably connected to the interior of the grinding box, a fixed bin is fixedly connected to the right side of the grinding box, a first motor is fixedly installed on the top of the grinding box, and an output shaft of the first motor is fixedly connected with a rotary grinding disc. A fixed grinding disc is fixedly connected into the grinding box, an adjusting assembly is arranged on the grinding box, a screening assembly is arranged on the fixed bin, and the screening assembly comprises a third motor fixedly installed on the inner bottom wall of the fixed bin. According to the catalyst processing and grinding mechanism, by arranging the screening assembly, after a catalyst is ground, a third motor is started to drive a screening box to move left and right in a reciprocating mode, the qualified catalyst falls into a collecting box, the effect of screening the catalyst is achieved, and the catalyst with large particles can be left in the screening box; and the screening effect on the catalyst is guaranteed, and a user can use the device conveniently.
Owner:TIANJIN PASSION ADVANCED MATERIAL TECH CO LTD
A screening device for flour processing
ActiveCN224405358Ugood removal effectImprove processing qualityElectric machineMechanical engineering
The utility model discloses a screening device for flour processing, including the casing, the inner wall of casing is fixed with the support, the lower end surface of support is equipped with first motor, the output of first motor passes through the support and is equipped with the scattering disc, the lower end surface fixed of casing is equipped with the adsorption box, the inner wall of adsorption box and located one side fixed is equipped with the mounting block, the outer wall of mounting block is fixed with the electromagnet bar, the outer wall of casing is equipped with the battery, so that the user can pass through the battery for electromagnet bar electrification to make it to the small particle magnetic impurity and dust in flour adsorb, to facilitate its removal from the flour, help to increase the processing quality of flour.
Owner:QINGHAI NEW LILAC GRAIN & OIL CMAPANY LTD
Stone vibrating screen for asphalt production
The utility model discloses a stone vibrating screen for asphalt production, which relates to the field of stone screening devices and comprises an operation cylinder, a first screen drum, a second screen drum and a third screen drum are mounted in the operation cylinder, and a plurality of screening holes are formed in the inner bottom walls of the first screen drum, the second screen drum and the third screen drum. The inner bottom walls of the first screen drum, the second screen drum and the third screen drum are arranged to be inclined faces, and a vibration screening mechanism is installed on the inner bottom wall of the operation drum. The rotating disc drives the eccentric convex shaft to rotate, then the first concentric-square-shaped plate and the connecting plate are driven to integrally move up and down, the connecting plate drives the second concentric-square-shaped plate to move up and down, the sliding block is stressed, the first screen drum, the second screen drum and the third screen drum are driven to move up and down together, vibration is generated, and the inner diameters of the screening holes are sequentially decreased from top to bottom. The stone screening device has the advantages that the multiple screening nets can be driven to vibrate, and the screening effect is achieved.
Owner:SHANDONG BAOXI ENERGY SAVING FUEL CO LTD
Microstrip antenna and communication equipment
ActiveCN222483699URealize the filtering effectminiaturizationAntenna supports/mountingsRadiating elements structural formsDielectricCommunication quality
The utility model provides a microstrip antenna and communication equipment, and relates to the technical field of antennas. According to the microstrip antenna, a radiation parasitic structure is arranged on the upper surface of a first medium carrier; the radiation structure is arranged on the upper surface of the second dielectric carrier; the metal plate is arranged on the upper surface of the third dielectric carrier, and the feed slot is etched on the metal plate; the strip line structure is arranged on the upper surface of the fourth medium carrier; the antenna ground is arranged on the lower surface of the fourth dielectric carrier. The connecting structure penetrates through the first medium carrier, and the radiation structure is connected with the radiation parasitic structure through the connecting structure. Wherein the connection structure is used for adjusting the surface current of the radiation structure and the radiation parasitic structure, and suppressing the generation of a high-order mode of the antenna in a use frequency band. According to the microstrip antenna and the communication equipment provided by the invention, the cross polarization ratio and the communication quality of the antenna can be improved, and the processing cost is reduced.
Owner:SHANGHAI TIANHUIHENG MICROELECTRONICS TECH CO LTD
Multiband pulse wave filter based on capacitive nonlinear circuit
PendingCN119092955ASimple structurelow costImpedence networksWaveguide type devicesShunt capacitorsFull wave
The invention relates to a multiband pulse wave filter based on a capacitive nonlinear circuit. According to the technical scheme, the multi-band pulse wave filter comprises a dual-band pulse wave filter, a three-band pulse wave filter and a four-band pulse wave filter; the dual-band, three-band and four-band pulse wave filters are correspondingly provided with two resonance units, three resonance units and four resonance units; each resonance unit has the same structure and is composed of a metal plate (7), a dielectric substrate (8) and a circuit module (9); the front surface of the dielectric substrate (8) is tightly attached to the rear surface of the metal plate (7), the circuit modules (9) are arranged in cross-shaped strip-shaped holes of the metal plate (7), and each circuit module (9) is composed of a full-wave rectification circuit, a rectification capacitor C, a rectification resistor R and a shunt capacitor Cpi. The filter is simple in structure, low in cost, capable of achieving low transmission of pulse waves and strong transmission of continuous waves at the same time, capable of achieving the pulse wave filtering effect in multiple frequency bands, and good in filtering effect. The method is suitable for the fields of communication, radars, antennas and the like.
Owner:WUHAN UNIV OF SCI & TECH
Sludge treatment system
ActiveCN224186037URealize the filtering effectincrease in sizeSludge treatment by de-watering/drying/thickeningMotor driveSludge
The utility model relates to the technical field of sludge treatment, and discloses a sludge treatment system which comprises a frame, a motor is fixedly connected to the middle upper portion of the front side of the frame, a connecting rod is fixedly connected to the output end of the motor, a driving chain wheel is fixedly connected to the rear end of the connecting rod, and two rotating rods are rotatably connected to the inner side of the frame at equal intervals. A driven chain wheel is fixedly connected to the front end of the rotating rod on the left side, the driving chain wheel is in transmission connection with the driven chain wheel through a chain, screens are arranged on the outer sides of the two rotating rods, a stirring mechanism is installed at the left end of the front side of the frame, and the stirring mechanism is used for stirring sludge and other chemical agents. According to the garbage screening device, the motor drives the driving chain wheel, the chain and the driven chain wheel to rotate through the connecting rod, so that the rotating rod is controlled to drive the screen to rotate, the effect of screening large-size garbage is achieved, and centralized treatment in the later period is facilitated.
Owner:LIANYUNGANG ZICHUAN FOOD CO LTD
Four-micro-ring band-pass filter
PendingCN121956254AAvoid loss defectsRealize the filtering effectOptical light guidesBandpass filteringEngineering
The invention discloses a four-micro-ring band-pass filter which comprises a first linear waveguide, a second linear waveguide and a third linear waveguide which are parallel to one another and are sequentially arranged in a first direction, and the first linear waveguide, the second linear waveguide and the third linear waveguide extend in a second direction perpendicular to the first direction; the first micro-ring and the second micro-ring are arranged between the first linear waveguide and the second linear waveguide and are sequentially arranged along a first direction; and the third micro ring and the fourth micro ring are arranged between the second linear waveguide and the third linear waveguide and are sequentially arranged along the first direction. By cascading the two double-ring filters with different radiuses and utilizing the vernier effect, the ultra-large FSR of the C wave band is realized while the low loss is ensured, the structure is compact, the process is mature, and the thin-film lithium niobate optical chip is suitable for preparation and application of a large-scale thin-film lithium niobate optical chip.
Owner:JINAN UNIVERSITY
Radiation oscillator and base station antenna
ActiveCN222507995UImprove Radiation PerformanceEffective filteringSimultaneous aerial operationsRadiating elements structural formsCapacitanceSoftware engineering
The utility model relates to a radiation oscillator and a base station antenna, and the radiation oscillator comprises a balun part which is used for feeding the radiation oscillator; the radiant panel is electrically connected with the balun component; the first metal layer is arranged on the first side of the radiant panel; the second metal layer is arranged on the second side, opposite to the first side, of the radiant panel, and the first projection, relative to the radiant panel, of the first metal layer and the second projection, relative to the radiant panel, of the second metal layer are at least partially overlapped. In the radiation oscillator, the first projection of the first metal layer and the second projection of the second metal layer relative to the radiation plate are at least partially overlapped, so that a capacitance filter capable of effectively filtering low-frequency interference can be formed. Therefore, the capacitance filter can restrain low-frequency signals, the filtering effect is achieved, the restraining of the radiation unit on the influence of the low-frequency signals is achieved, and the influence of the radiation oscillator on the radiation oscillator generating the low-frequency signals can be reduced.
Owner:PROSE TECH CO LTD
Screening device for concrete raw materials
ActiveCN222267784Ueasy maintenancehigh activitySievingScreeningStructural engineeringMechanical engineering
The utility model discloses a concrete raw material screening device which comprises a screening device body, two sets of mounting grooves are formed in the screening device body, collecting boxes are detachably connected in the two sets of mounting grooves, and four sets of supporting legs are fixedly connected to the lower surface of the screening device body. A vibration assembly is arranged on the upper surface of the screening device body, a screening assembly is arranged on the surface of the vibration assembly, and the screening assembly and the vibration assembly are movably arranged. According to the vibration screening device, the installation shell moves on the surface of the sliding rod through the sliding block, so that the vibration screening effect is achieved, when the filter box needs to be replaced, the positioning rod is pulled out of the rotating plate, then the rotating plate is rotated through the rotating column to a proper angle, and then the filter box can be taken out and replaced or cleaned; and the advantages that the raw materials are conveniently filtered, and the filter box is conveniently maintained are achieved.
Owner:青岛比利佳重工有限公司
Fruit and vegetable picking and containing device
ActiveCN222267799URealize the filtering effectavoid damageSievingScreeningAgricultural engineeringMechanical engineering
The utility model relates to the technical field of agricultural picking, in particular to a fruit and vegetable picking and containing device which is fixedly installed on a containing box body through universal wheels, a containing opening is formed in the side, away from the universal wheels, of the containing box body, a first buffering cushion is arranged in the side, close to the universal wheels, of the containing box body, and a sliding rail is fixedly installed in the containing box body. The screening frame is slidably mounted on the sliding rail, a vertical groove is formed in the screening frame, the rotating ring is rotatably mounted in the containing box through the rotating assembly, the driving column is fixedly mounted on the rotating ring and located in the vertical groove at the same time, and the rotating assembly is matched with the rotating ring and the driving column to drive the screening frame to reciprocate along the sliding rail. According to the fruit and vegetable screening device, fruits and vegetables are screened through the through holes in the screening frame, so that the screening effect on the fruits and vegetables is achieved, meanwhile, the fruits and the vegetables only move along with the screening frame and cannot vibrate, and then the fruits and the vegetables are prevented from being damaged in the screening process.
Owner:YUANMOU COUNTY BINONG ECOLOGICAL BREEDING CO LTD
Multi-stage vibration screening device for activated clay
ActiveCN224157257URealize the filtering effectFacilitates different crushing processesSievingScreeningSoil scienceStructural engineering
The utility model discloses a multi-stage vibration screening device for activated clay, which comprises a screening box, a plurality of vibrating motors, a plurality of vibrating screens and a plurality of vibrating screens, the base is used for placing the screen box on the ground, and a plurality of springs are arranged between the screen box and the base; wherein a plurality of sieve plates which are vertically distributed at equal intervals are arranged in a cavity of the sieve box, a plurality of strip-shaped holes which are distributed at equal intervals are formed in the sieve plates in a penetrating mode, the strip-shaped holes are transverse to the moving tracks of activated clay particles on the sieve plates, and the width of the strip-shaped holes in the sieve plate located on the upper portion is larger than that of the strip-shaped holes in the sieve plate located on the lower portion. According to the activated clay particle screening device, the effect of screening activated clay particles with different particle size ranges can be achieved, so that the activated clay particles with different particle size ranges can be conveniently subjected to different crushing treatments subsequently, and the risk of reworking treatment is reduced while the quality of finished activated clay particles is guaranteed.
Owner:HUANGSHAN BAIYUE ACTIVATED CLAY
Wide frequency conversion three-phase alternating current input preprocessing method and system
The invention relates to the technical field of new energy storage systems, in particular to a wide frequency conversion three-phase alternating current input preprocessing method and system, and designs an overall operation framework, switches low-pass and band-pass filtering based on a transient and steady state judgment identifier output by a frequency processing function, and realizes a transient fast frequency switching tracking effect and a filtering effect with a relatively good steady state. According to the method, a filtering algorithm is realized by adopting discretization, and particularly, band-pass complex coefficient sequence filtering based on an ROGI structure is adopted for an orthogonal coupling amount under a two-phase static coordinate system. According to the method, high-pass and jitter elimination filtering, steady-state criterion design and steady-state condition judgment are carried out on a zero-cross detection ZCD-FLL frequency locking result to adapt to different changes of input frequency, a frequency feedback coefficient is analyzed, a transient criterion is designed, and a threshold value reference is quantitatively analyzed, so that when a system operates in a steady state, the stability of the system is improved, and the stability of the system is improved. And the fact of frequency change is identified as soon as possible, so that frequency locking is returned to zero, and transient frequency locking is restarted.
Owner:Yueqing Yandangshan Electrical Research Institute +1
A wide frequency conversion three-phase AC input preprocessing method and system
The present invention relates to the technical field of new energy storage systems, and specifically to a wide frequency conversion three-phase AC input preprocessing method and system. An overall operating architecture is designed, and based on the transient and steady-state judgment identifier output by the frequency processing function, low-pass and band-pass filtering are switched to achieve transient fast frequency switching tracking effect and better steady-state filtering effect. The present invention adopts discretization to implement the filtering algorithm, especially for the orthogonal coupling quantity in the two-phase stationary coordinate system, a band-pass complex coefficient sequence filter based on the ROGI structure is adopted. The present invention performs high-pass and de-jitter filtering on the zero-crossing detection ZCD-FLL frequency locking result, designs a steady-state criterion, and determines the steady-state conditions to adapt to different changes in the input frequency. The present invention designs a transient criterion by analyzing the frequency feedback coefficient, and quantitatively analyzes its threshold value reference, so that the system can recognize the fact of frequency change as quickly as possible during steady-state operation, return the frequency lock to zero, and restart the transient frequency lock.
Owner:Yueqing Yandangshan Electrical Research Institute +1