742 results about "Filter effect" patented technology

The invention provides an image real-time filter processing method based on edge calculation, and the method comprises the steps: obtaining the local texture feature distribution of an input image, calculating the gradient variation of each pixel point in the horizontal and vertical directions, and calculating a quantitative index value reflecting the image texture complexity based on the statistical distribution feature of the gradient variation; executing a parallelized filter effect rendering operation based on the optimized processing task allocation scheme, and applying corresponding filter parameters to each image block through a multi-thread cooperative processing mechanism to form filter rendering configuration information suitable for the performance of the current mobile device; and carrying out fusion reconstruction on brightness, saturation and hue component data after filter processing, generating a final filter processing image through a reverse conversion process from HSV to RGB, and recording parameter configuration information in the processing process at the same time for rapid processing of subsequent similar images.

The invention provides a noise reduction method and device, equipment and a medium, weighting processing is performed on a first time domain reference noise signal vector to obtain a second time domain reference noise signal vector, a sampling point closer to the current moment is endowed with a higher weight, the noise reduction performance is optimized, and the noise reduction performance is improved by updating a weight coefficient and the second time domain reference noise signal vector. Therefore, the noise cancellation signal is determined on the time domain, filtering on the time domain is realized, the noise cancellation signal is generated to carry out noise reduction processing on the primary noise in the target noise reduction area, extra time delay caused by frequency domain filtering is avoided, noise reduction time delay is reduced, and the filtering effect is improved. The updating process of the weight coefficient is completed in the frequency domain, updating is achieved in the frequency domain with smaller blocks, the calculation amount is reduced, the interval time of noise reduction processing is shortened, the calculation efficiency of the algorithm is improved, the processing delay is reduced, and the noise reduction effect is improved.

The invention relates to the technical field of electromagnetic compatibility, in particular to a new energy automobile electronic part EMC (Electro Magnetic Compatibility) multi-dimensional simulation verification method, which comprises the following steps of: based on a geometric structure and material attributes of a new energy automobile electronic part, identifying an abnormal field intensity region, extracting a signal path and an electromagnetic wave incident direction, and analyzing an overlapping relationship between the signal path and the electromagnetic wave incident direction; according to the method, the electromagnetic field distribution and the interference source of the parts are accurately modeled and analyzed, the shielding and filtering design is optimized, the electromagnetic compatibility is improved, the interference coupling point is identified, the shielding effectiveness and the filtering effect are evaluated, the optimization policy is identified, the electromagnetic field distribution after optimization is analyzed, the fluctuation data of the external electromagnetic field is captured, and the influence evaluation list of the external electromagnetic field is generated. The reliability of the design under actual working conditions is ensured, electromagnetic interference is prevented, stable work of parts in a variable electromagnetic environment is ensured, the electromagnetic compatibility of the whole automobile is improved, the influence of electromagnetic interference on the functions of the new energy automobile is reduced, the design effect is optimized, and the performance and safety are improved.

The utility model relates to the technical field of cleaning, in particular to cleaning equipment which comprises a main shell and a cover plate device, and the cover plate device is movably mounted on the main shell so as to seal or open an opening of the main shell, so that a filter part can be loaded into or moved out of a containing cavity from the opening; the cover plate device comprises a cover plate and a display assembly, and the display assembly is installed on the side, away from the containing cavity in the first direction, of the cover plate. According to the display device, the display assembly is arranged outside the containing cavity, so that the containing cavity has a larger space for containing the filtering piece, the size of the filtering piece can be as large as possible, airflow exhausted to the outside from the containing cavity through the air outlet can be fully filtered by the filtering piece, and the filtering effect of the filtering piece is good; through the arrangement, a user can conveniently and clearly see the display assembly and know the current state of the cleaning equipment in time.

The invention discloses a distributed MIMO (Multiple Input Multiple Output) integrated system and method based on a reconfigurable notch chaotic optoelectronic oscillator, belongs to the field of microwave photons, and solves the problems of spectrum resource conflict, difficulty in multi-node synchronization, discrete inductance functions and the like. According to the system, a plurality of independent chaotic OEOs are combined with an optical frequency comb to drive an FIR filtering effect, MIMO chaotic signals with reconfigurable notch frequency points and quantity are generated, and dynamic allocation of spectrum resources is realized. The notch frequency band is used as a communication channel embedded modulation signal, and supports multi-spectrum sharing with 2.4 G, 5G, Wi-Fi and the like; a non-notch frequency band is reserved as a radar signal, and the range resolution is improved by using the broadband characteristic of the chaotic waveform. The star topology optical network expands the coverage area of a distributed system, and a centralized processing architecture reduces the complexity of multi-node collaboration. The invention provides an integrated solution of high-precision environment perception and high-reliability communication for smart cities, Internet of Vehicles and the like, and is suitable for dense urban areas with resource shortage and dynamic multi-service environments.

The invention relates to the technical field of centrifugal machine control, in particular to a lower discharging centrifugal machine control method and system based on a PLC, and the method comprises the steps: obtaining a flow time sequence and a concentration time sequence of a material at a feeding valve in a feeding stage, and a power time sequence of a main motor of a centrifugal machine; obtaining a first characteristic value and a second characteristic value of the control moment by combining a correlation and an average trend of a flow time sequence and a concentration time sequence in a change trend in a time range corresponding to any control moment and a previous control moment, and a periodic fluctuation characteristic of a power time sequence; and a proportion parameter value is obtained by combining the first characteristic value and the second characteristic value, so that the rotating speed of a main motor of the lower discharging centrifugal machine is controlled at the corresponding control moment. The control effect on the main motor of the lower discharging centrifugal machine is improved, and therefore the filtering effect on materials is improved.

The invention relates to the technical field of textile equipment testing, in particular to a yarn textile high-speed spindle operation stability testing method and system, and the method comprises the following steps: S1, testing element layout; s2, initializing the system; s3, carrying out transient test; s4, testing a steady state; s5, interference processing: carrying out spectrum analysis on the originally acquired data, identifying interference frequency characteristics, eliminating interference by adopting a notch filtering and Kalman filtering combined method, and verifying a filtering effect; s6, parameter correlation modeling: constructing a vibration-temperature-tension-rotating speed parameter correlation model by adopting a control variable method, solving model parameters through a fitting algorithm and verifying validity; s7, quality tracing; s8, stability judgment; and S9, performing real-time monitoring and regulation. According to the method, a combined filtering scheme of notch filtering and Kalman filtering is adopted, fixed interference and random interference such as power frequency and mechanical resonance are suppressed in a targeted manner, and through comparison of locally amplified signals, the filtered signals are smooth in waveform and thorough in noise removal, and the signal-to-noise ratio and reliability of vibration detection signals are improved.

The invention relates to an anti-interference high-selectivity omnidirectional planar filtering antenna, a filtering processing method and application, and the planar filtering antenna comprises a metal radiation layer, a first dielectric substrate, a first coupling layer, a second dielectric substrate and a second coupling layer which are sequentially stacked. The second dielectric substrate is provided with a plurality of metalized through holes which are distributed in an annular array mode and define a substrate integrated cavity with the first coupling layer and the second coupling layer, the metalized through holes divide the second coupling layer into an inner side patch and an outer side ring piece, and the inner side patch is evenly provided with a plurality of resonance grooves; and a feed probe penetrating and extending to the second dielectric substrate is arranged at the center of the bottom of the metal radiation layer. According to the invention, the substrate integrated waveguide technology is adopted, the substrate integrated cavity is formed, and a high-selectivity filtering effect is realized by utilizing the characteristic of high Q value, so that the interference of out-of-band signals is effectively inhibited, and the advantages of the patch antenna and the substrate integrated cavity are effectively combined.

The invention relates to the technical field of filtering equipment, and discloses large-flow filtering equipment which comprises a filtering box and a backflow box, a filtering piece with a filtering effect is installed in the filtering box, and a cleaning piece used for cleaning the filtering piece is installed at one end in the filtering box. Compared with the prior art, the filtering device has the beneficial effects that multiple self-cleaning of the blocking filter screen is achieved in the filtering process, the permeability of the blocking filter screen is guaranteed, the filtering effect is improved, the filtering effect is improved, and the filtering effect is improved. The operation of the filtering equipment is guaranteed, the operation time of the filtering equipment is prolonged, the operation efficiency of the filtering equipment is guaranteed, when the impurities are many, the impurities can be collected and treated through the impact force of water flow, the filtering equipment does not need to be stopped, the operation of the filtering equipment is guaranteed, the labor intensity of workers is not needed, and the labor intensity of the workers is reduced.

The invention provides a visual monitoring method for the life cycle of marine equipment based on artificial intelligence, and belongs to the technical field of marine equipment. The method comprises the following steps: adaptively adjusting potential spatial sampling randomness scale parameters according to ocean circulation interference intensity by using an ocean circulation feedback filtering model to realize intelligent filtering of environmental interference, and dynamically determining working parameters of the filtering model through an ocean circulation adjustment function to ensure that the optimal filtering effect is kept under different ocean environment conditions; extracting pure equipment state characteristic parameters such as a vibration acceleration amplitude change rate, a temperature gradient change rate, a stress concentration coefficient and a corrosion rate, and analyzing a state characteristic evolution rule by adopting a time sequence deep learning algorithm to predict an equipment degradation trend; the technical problem of low monitoring precision caused by environmental interference in the marine equipment life cycle state monitoring process is solved.

The invention provides a filter circuit, a filter control device and a filter control method. The filter circuit comprises a first inductor device, a first capacitor device and a plurality of filter branches; the first end of the first capacitor device is used for connecting a stator of the generator and the first end of the first inductor device, and the second end of the first capacitor device is connected with the plurality of filter branches; the plurality of filtering branches are connected in parallel; the second end of the first inductor device is connected with the double-fed converter; at least part of the filtering branches comprise resonance parameter adjusting devices, and the resonance parameter adjusting devices in different filtering branches are different; the filtering branch also comprises an on-off control device which is used for controlling the on-off of the filtering branch and the first inductance device. According to the mode, different resonance parameter adjusting devices can be communicated, so that frequency band harmonic waves existing in a current loop are filtered out, the harmonic waves of all frequency bands can be effectively filtered out by connecting the different resonance parameter adjusting devices, a wide-frequency-band filtering function is achieved, and the harmonic wave filtering effect of all the frequency bands is improved.

The application provides an integrated Boost voltage increasing module structure, which comprises a high-voltage plug-in, a fast charging socket, a battery socket and an integrated module; the fast charging socket and the battery socket are fixedly connected with a fast charging copper bar; the integrated module is connected with the high-voltage plug-in; the fast charging socket and the battery socket are both connected with the integrated module; and the integrated module comprises a filtering assembly. By using the integrated module, the Boost structure is highly integrated, the material is saved, the space occupied by the voltage increasing module is reduced, the installation and dismounting are convenient, the heat dissipation performance is good, the filtering effect is good, the vehicle space is saved, the wire harness wiring length and complexity of the whole vehicle are saved, the current is subjected to two-stage filtering treatment by using the filtering assembly, the interference signal is reduced, the filtering assembly structure is highly integrated, the copper bar and the filtering plate are connected, the filtering capacitor is directly connected with the power supply and the ground through the copper wire laid in the circuit board, the structure design is ingenious and complex, and thus the area occupied by the voltage increasing module is small.

The utility model relates to the technical field of poisonous gas emptying and purifying mechanisms, in particular to an emptying and purifying mechanism for poisonous gas exhausted by semiconductor equipment. According to the technical scheme, the device comprises a collecting box, a filtering layer is arranged in the collecting box, two screw rods are rotationally arranged between the inner walls of the front side and the rear side of the collecting box, and the outer ring of the middle end of each screw rod is in threaded connection with a cleaning brush. By arranging the filter layer to the first motor, collected gas can be preliminarily filtered, large-particle solid pollutants are removed, the follow-up purification process is prevented from being influenced, self-cleaning of the filter layer is facilitated, the phenomenon that the gas inlet effect and the filter effect are influenced due to blockage is prevented, and the catalytic effect is improved by arranging the catalytic box to the catalyst stirring paddle. The gas can be conveniently heated to a high temperature, harmful gas can be oxidized into harmless substances such as water and carbon dioxide under the action of a catalyst, the gas can be fully stirred through rotation of a catalyst stirring paddle, and the catalysis efficiency is improved.

The utility model discloses an oil fume filtering device and a range hood, and relates to the technical field of household appliances. The oil smoke filtering device comprises a first shell, a second shell, a filter screen, a retracting and releasing assembly and a movable adjusting assembly, the retracting and releasing assembly is used for releasing the filter screen in a folded state or retracting the filter screen in an unfolded state, and the movable adjusting assembly is used for adjusting the relative position of the first shell and the second shell in the airflow conveying direction. Therefore, the area of the filter screen in the unfolded state is adjusted. The movable adjusting assembly comprises an electromagnetic attraction part and an elastic part, the relative position of the first shell and the second shell can be effectively controlled through the electromagnetic attraction part and the elastic part, so that the area of the filter screen in the unfolded state is adjusted, the filter area can be adjusted according to actual requirements of different scenes, the filter effect and wind resistance are well balanced, and the filter efficiency is improved. Therefore, the user experience is improved. The range hood provided by the embodiment of the utility model comprises the oil fume filtering device.

The utility model relates to a dual-channel optical filter based on a three-rectangular cavity edge coupling waveguide. The dual-channel optical filter comprises a silicon substrate, a sapphire layer, a graphene nano-strip waveguide, a first graphene rectangular resonant cavity, a second graphene rectangular resonant cavity and a third graphene rectangular resonant cavity, the sapphire layer is arranged above the silicon substrate; a graphene nano-strip waveguide, a first graphene rectangular resonant cavity, a second graphene rectangular resonant cavity and a third graphene rectangular resonant cavity are arranged on the upper surface of the sapphire layer; the first graphene rectangular resonant cavity and the third graphene rectangular resonant cavity are connected in series and arranged on one side of the graphene nano-strip waveguide, and the second graphene rectangular resonant cavity is arranged on the other side of the graphene nano-strip waveguide. According to the utility model, the problems of narrow bandwidth and poor filtering effect of an optical filter with a graphene structure are solved; the dual-channel optical filter which is small in size, wide in bandwidth, excellent in filtering effect, dynamically tunable and easy to integrate is realized in an infrared band.

The invention relates to the technical field of signal analysis, in particular to equipment and a method for filtering radiation monitoring interference values of a plant area. On the basis of the characteristic that non-Gaussian noise interference generated after power equipment is started and stopped can cause abrupt change of a monitoring radiation signal, calculating an electromagnetic interference index of each local waveform signal; then, based on an electromagnetic interference index, screening out feature local signals which are not interfered by non-Gaussian noise and interference local signals which are possibly interfered by non-Gaussian noise; therefore, the signal abnormal degree of each interference local signal is determined based on the deviation condition between the interference local signal and the feature local signal in the time domain and the frequency domain, and the interference local signal and the feature local signal are screened out according to the signal abnormal degree. The filtering effect of radiation signal filtering through sequential statistical filtering according to normal radiation signals is better.

The utility model provides a CTO composite filter element, which relates to the technical field of filter elements and comprises a filter element body, a mounting block is mounted on the left side of the filter element body, a protective net is arranged on the right side of the mounting block, a fixed block is mounted on the right side of the filter element body, a rotating plate is arranged in the fixed block, and a cover plate is mounted on the right side of the rotating plate. A filter screen is mounted on the right side of the cover plate, and a pinching pad is mounted on the right side of the cover plate, so that quick mounting and dismounting of the filter element are realized, and the replacement efficiency is improved. Through sliding fit of the protective net and the fixing groove and symmetrical distribution of the soft cushions, impact of water flow on the filter element is effectively prevented, and the service life of the filter element is prolonged. Due to sliding connection between the limiting groove and the limiting plate and sliding connection between the clamping pad and the mounting block, the stability and the sealing performance of the filter element in the working process are ensured. Under the combined action of the technical characteristics, the CTO composite filter element has a better filtering effect, longer service life and a more convenient maintenance mode.

The invention discloses a separation module with a uniform filtering structure and a cleaning robot. A first annular flow channel is formed in the edge part of the top of an inner cavity of the separation module, and the first annular flow channel is connected with an air inlet; a filter block is arranged in the exhaust cavity, and a gap is reserved between the upper surface of the filter block and the upper wall surface of the exhaust cavity; an overflow port is formed in the top of the first convex edge of the air exhaust cavity, a second annular flow channel is arranged on the outer side of the air exhaust cavity, the second annular flow channel is arranged around the air exhaust cavity, and the second annular flow channel communicates with the overflow port; and the second annular flow channel is connected with the air outlet. The air flow is filtered by the filter block, and the air flow horizontally diffuses all around after flowing through the filter block and then flows to the second annular flow channel, so that the air flow more uniformly flows through the filter block, the filter effect is improved, the service life of the filter block is prolonged, and the air flow flows more smoothly.

The utility model relates to the technical field of filtering equipment, in particular to snakegourd rapeseed oil filtering equipment which comprises a base, at least one filtering frame is connected to the base in a sliding mode, a filtering net is connected to the lower end of the filtering frame in a sliding and inserted mode, the filtering net and the filtering frame are fixed through a positioning assembly, and a driving assembly is arranged on the rear side of the base. The filter frame is assembled by the aid of the clamping component, multiple filtering effects are achieved, a user can freely increase or decrease filtering levels according to needs by the aid of design flexibility of the clamping component, and the filter frame can be conveniently detached only by opening the clamping component in maintenance and cleaning links. And the screen can be taken out by unlocking the positioning assembly, so that the cleaning convenience is improved.

The invention provides an RTO heat energy recycling device, and relates to the technical field of RTO heat energy recycling, the RTO heat energy recycling device is characterized in that a filtering structure is installed in an inner pipe body, the top of an airflow driving assembly communicates with a first channel and a second channel, waste gas passes through the second channel and is filtered by the filtering structure, and the airflow driving assembly extends into the inner pipe body; and a cleaning structure used for cleaning the filtering structure is installed in the middle of the airflow driving assembly, and external air drives the airflow driving assembly through the first channel. Through arrangement of the cleaning structure, in the rotating process of the cleaning frame, the protruding blocks can continuously make contact with the inner side wall of the filter element, and therefore the filtering effect is improved; the contact can continuously perform friction vibration on the filter element, so that the filter element is cleaned, the filter element is prevented from being blocked, and the filtering effect of the filter element and the smoothness of airflow passing are ensured.

The multi-medium filter of the water purification equipment comprises a tank body, a bottom support is detachably arranged at the bottom of the tank body, a water inlet pipe is arranged at the top of the tank body, a water outlet pipe is arranged at the bottom of the bottom support, an anti-scour guide plate is fixedly connected to the top of the inner wall of the tank body, and a plurality of flow dividing holes are formed in the bottom of the anti-scour guide plate; the device has the beneficial effects that water flow entering the tank body can be effectively and preliminarily blocked and impulsive force can be effectively relieved through the arrangement of the anti-scour guide plate and the flow dividing holes in the anti-scour guide plate, the impact force of the water flow is effectively reduced, the water flow can be effectively prevented from entering the tank body, and the service life of the tank body is prolonged. Meanwhile, through the arrangement of a motor, a rotating rod and a flow beating plate, water flow flowing down from flow dividing holes is scattered, the water flow impact force is further reduced, meanwhile, the water flow slowly and uniformly falls to a filtering medium layer, and the situation that the filtering effect is affected due to density change caused by the fact that a medium layer of traditional equipment is prone to being impacted is effectively avoided.

The utility model provides an air purifier with interlayer filter, relates to air purifier technical field, including casing, air outlet chamber and bottom plate, is equipped with connecting mechanism between casing and bottom plate, is equipped with air suction mechanism on air outlet chamber, the outside of bottom plate is equipped with interlayer filter mechanism, the both sides symmetry of air outlet chamber and casing bottom are equipped with through groove, the utility model discloses a plurality of filter screen board is in turn in the outside of support rod and is connected, then the filter screen cover is connected in the top of support rod, and in the adjacent filter screen board and filter screen cover between and connect on the separation sleeve, and the top of support rod is tightened on the nut, and the filter screen board and filter screen cover are clamped tightly by the nut, and the filter screen board and filter screen cover are fixed on the support rod, and the bottom plate, support rod, filter screen board and filter screen cover are integrated structure, and the bottom plate is separated from the bottom of casing, and the filter screen board and filter screen cover for filtering effect also are disassembled together, and the disassembly is convenient, also is convenient for cleaning.

The invention discloses a targeted design and optimization method for an organic pollutant fluorescence sensing array and a signal acquisition device. The overall information of the array is obtained in a high-throughput manner in a fluorescence imaging mode; based on an inner filter effect sensing mechanism, the model selection of a sensing material and an optical device is carried out by taking the absorption spectrum characteristic of a target organic detection object as a starting point, and sensing optimization is carried out based on the controllability of weak interaction between the sensing material and the target detection object. The use process comprises two aspects of sample library construction and modeling and detection application. The method comprises the steps of sensing material selection, model selection of an excitation light source and a signal acquisition device, light path arrangement design and sensing performance optimization. The detection device disclosed by the invention has proper detection precision and portability, can replace a precise fluorescence spectrophotometer, and realizes low-cost, high-throughput and real-time field detection of a water body.

The utility model discloses an ultrasonic flowmeter which comprises a measuring pipeline, a display instrument is arranged on the upper portion of the outer wall of the measuring pipeline, two installation openings are formed in the measuring pipeline, installation pipes are arranged at the two installation openings respectively, and ultrasonic transceivers are arranged in the installation pipes. The axes of the two ultrasonic transceivers form inclined included angles relative to the cross section of the measuring pipeline; a stepped hole is formed in the mounting pipe, a mounting part is fixedly connected to one side of the ultrasonic transceiver, two sealing rings are arranged between the outer wall of the mounting part and the inner side wall of the stepped hole, a pressing block is arranged on the side, away from the ultrasonic transceiver, of the mounting part, and a first spring is arranged below the pressing block; a clamping assembly is arranged on the side, away from the ultrasonic transceiver, of the pressing block. The two ends of the measuring pipeline are connected with a liquid inlet pipe and a liquid outlet pipe respectively, and a filtering assembly is arranged on the side, close to the measuring pipeline, in the liquid inlet pipe. According to the utility model, the ultrasonic transceiver can be conveniently disassembled, assembled and replaced, and meanwhile, a filtering effect is achieved.

The application relates to a filtering system for electronic sulfuric acid production applied to the field of sulfuric acid production. Through the arrangement of a main filtering module, a circulating filtering module and a filter detection cylinder, the sulfuric acid raw material liquid or finished product liquid can be automatically detected after each filtration, the filter detection cylinder can adhere to the particulate impurities in the liquid, and the arrangement of the sensing assembly can effectively sense the existence of the particulate impurities, so as to judge whether the filtration is up to the standard. When the filtration is not up to the standard, the circulating filtering module can be used for repeated filtration for multiple times. Compared with the prior art, the effect of filtering and detecting simultaneously is achieved, the incomplete filtration or over-filtration is effectively avoided, and the filtering efficiency and filtering effect are effectively ensured.

The application discloses a resonator, filter and multiplexer. The resonator comprises at least one LC resonant unit and at least one embedded resonant unit; the at least one LC resonant unit comprises at least one resonant element, the at least one resonant element comprises a first part, a second part and an interface between the two, and the interface connects the first part and the second part; the embedded resonant unit is embeddedly connected with the LC resonant unit through the interface. The application not only enables the LC resonant unit and the embedded unit to simultaneously filter the input signal, thereby ensuring the filtering performance of the resonator, but also enables the elements in the embedded resonant unit and the elements in the LC resonant unit to form a new resonant unit, and the input signal is filtered through the new filter unit, thereby not only improving the filtering effect of the resonator, but also increasing the signal transmission zero point of the filter, and further improving the filtering performance of the filter.

The utility model provides a kind of SF6 / N2 mixed gas intelligent on-line monitoring device, it is related to gas monitoring technical field, including processing box, infrared spectrum sensor is fixedly installed in the inside one side of processing box, information processing module for processing information is fixedly installed in the inside one side of processing box, ultrasonic sensor is fixedly installed in the inside one side of processing box, pressure temperature sensor is fixedly installed in the inside one side of processing box, the top surface of processing box is fixedly installed with several alarm lamps, filter screen one, driving motor, cam, connecting roller, gyro wheel, gyro wheel, mounting rod, spring and filter screen one are cooperated with each other by being set, it can prevent dust from contacting multiple sensors such as pressure temperature sensor, ultrasonic sensor and infrared spectrum sensor while preventing air intake fluctuation from affecting mixed gas detection, reach the filtering effect to dust, improve the monitoring effect to SF / N mixed gas.

The utility model relates to the technical field of warping machines, and discloses a warping machine lubricating device which comprises an oil bin, a lubricating conveying set and a lubricating ring, a screen is arranged in the oil bin, an inner filter screen is arranged in the screen, an inner clamping plate is arranged at the top of the inner filter screen, an inner suction pipe is arranged on the inner side of the inner clamping plate, and an outer suction pipe is arranged on the outer side of the inner suction pipe. The top of the oil bin is provided with a lubrication conveying set, the right side of the lubrication conveying set is provided with a lubrication ring, the oil bin is internally provided with a screen and an inner filter screen, the screen is designed in a wave-shaped surrounding mode, the filtering area is greatly increased, and the inner filter screen further enhances the filtering effect. Impurities in the lubricating oil can be fully removed through double fine filtration, it is ensured that the pure lubricating oil enters the lubricating conveying set and the lubricating ring, and therefore precise and efficient lubrication of all parts of the warping machine is achieved. The problems of friction increase and abrasion aggravation caused by impurities are reduced, the operation stability of equipment is remarkably improved, and the service life of the warping machine is prolonged.

The utility model provides a microfiltration membrane filter which comprises a supporting pipe, a connecting port, a fixing buckle, a gland, a medium inlet, a filter element support, a filter element and a medium outlet, the connecting port is fixedly installed at the top of the supporting pipe, the fixing buckle is installed on the outer side of the connecting port, and the gland is installed on the outer side of the connecting port in an overturning mode. The fixing buckle is fixed on the outer side of the connecting port; the medium inlet is fixedly installed above the gland, the filter element support and the filter element are arranged in a staggered mode, and the filter element support and the filter element are installed in the supporting pipe in a sliding mode; the medium outlet is fixedly formed in the bottom end of the supporting pipe; due to the arrangement of the filter element bracket and the filter element, the integral stability is high, the filter membrane is not easy to damage, and the filtering effect is strong.

The utility model belongs to the technical field of graphene production devices, and particularly relates to a filtering device for graphene production, which comprises a box body and a discharge pipe communicated with the lower end of the box body, the left end and the right end of the box body are fixedly connected with mounting plates, and the lower ends of the two mounting plates are provided with electric push rods. The output ends of the two electric push rods penetrate through the mounting plate and are jointly and fixedly connected with a cover plate, a mounting ring is fixedly connected to the lower end face of the cover plate, a plurality of evenly-distributed balls are embedded in the lower end face of the mounting ring, a support is fixedly connected to the inner bottom end face of the box, and a motor is mounted on the inner top end face of the support. The output end of the motor penetrates through the support and is fixedly connected with a mounting rod, and the outer wall of the mounting rod is sleeved with a sleeve. According to the device, the filter screen can be conveniently and quickly mounted and dismounted, and graphene powder is prevented from flying; and the feeding speed of graphene can be controlled, so that the filtering effect is improved.