447results about How to "Filter thoroughly" patented technology

A device for separating water from sludge comprising a processing box, wherein a feeding cylinder is disposed above the processing box, and the feeding cylinder is fixedly connected to the processing box through a plurality of connecting rods; a rotating rod is rotationally connected into the feeding cylinder; a first rotating motor is fixedly connected to one side of the feeding cylinder; the output end of the first rotating motor penetrates through the side wall of the feeding cylinder, and is fixedly connected to the rotating rod; a spiral blade is fixedly sleeved with the rotating rod, and the outer side of the spiral blade is matched with the inner side wall of the feeding cylinder.

The invention belongs to the field of noise filtering and particularly relates to a method of using frequency domain local threshold method to position frequency and then using a Gauss notch filter to carry out filtering to realize the positioning and filtering of the multi-stripe noise. The multi-stripe noise positioning and filtering method comprises the steps of (1) image transformation, (2) partition, (3) the setting of a partition threshold, (4) stripe noise frequency point positioning, and (5) filtering. The invention provides a stripe noise frequency positioning and filtering method, multiple types of stripe noise frequency can be positioned, the positioning is accurate, and the filtering of stripes is more thorough. According to the method, the local threshold method is used to determine the position of noise frequency, various complex stripe noise frequency can be positioned, thus a problem that small amplitude stripe noise frequency can not be positioned caused by the influence of energy distribution is solved.

The invention discloses horizontal type shaft-rotating multistage sewage filtering equipment and a method thereof. The horizontal type shaft-rotating multistage sewage filtering equipment comprises arack, a vertical type bearing seat, a coaxial multistage composite filter cartridge, a supporting frame, a suspended impurity removing unit and a water guide rotary connecting piece; the suspended impurity removing unit comprises shaft rotating hook units and shaft rotating plate units, and the two shaft rotating hook units are in reverse rotating fit to hook out suspended impurities in sewage; the shaft rotating plate units and the corresponding shaft rotating hook units rotate in the same direction to remove the suspended impurities on the shaft rotating hook units; the shaft multi-stage composite filter cartridge is provided with a rotary driving mechanism located at the bottom of the cartridge in a matched mode, and the rotary driving mechanism drives the coaxial multi-stage compositefilter cartridge to axially rotate to filter out solid impurities in sewage from large to small. The suspended impurities and the solid impurities in the sewage can be removed in a classified mode, sothat the problem that filtering holes of existing filtering equipment are frequently blocked is solved, filtering is thorough, the effect is good, and the efficiency is high.

The invention discloses a washing machine with a self-cleaning filter and a control method thereof. The filter is fixed to the bottom of an inner tub of the washing machine and does not occupy the volume of the inner tub, the outer diameter of the filter is larger than the diameter of a drainage center hole in the bottom of the inner tub, an opening through which washing water flows is formed in the side face of the bottom of the inner tub, the washing water flows through the filter from the bottom of the filter to enter the inner tub to be circulated to achieve the filtering effect, the washing water can sequentially pass through the opening in the bottom of the inner tub, the filter and the bottom of the inner tub from the interior of the inner tub and then is returned to the interior ofthe inner tub to form a cycle, the water circulation path is shortened, the water velocity and impact force are ensured, it is ensured that most water is drained from the opening and flows downwardsdirectly to be returned to the inner tub through the filter, and the filtering effect is further improved; the washing water flows through the filter from a drainage center hole to achieve drainage sothat the self-cleaning effect can be achieved, the filter is washed by the washing water, the contamination caused by line scrap accumulation is avoided, and the filter does not need to be disassembled artificially to be cleaned.

The invention discloses an SMV and GOOSE message filter method based on an FPGA, belongs to the technical field of power system automation. According to the method provided by the invention, after the FPGA receives a frame of SMW or GOOSE messages completely through an internal MAC, MAC address filter is carried out firstly; then APPID filter is carried out; then CRC check code filter is carried out; after passing through the processes, ASN.1 decoding is carried out to the messages; key fields of the messages are extracted; legality check is carried out; finally secure bandwidth filter is carried out; and the messages passing through all the filter items are sent to a CPU for follow-up processing. Through the method provided by the invention, the difficulty of testing SMV and GOOSE message network pressures in a power automation device is solved; the system efficiency is further improved; and the hardware cost is reduced.

The invention relates to high-value cycling and reusing techniques of waste polyester and particularly relates to a method for preparing a high-quality fusant from waste polyester textiles. The method comprises the following steps: adding 1-8% of alcohol into the raw material according to the mass of the raw material, and carrying out blending and melt extrusion by virtue of a screw extruder, wherein the melt viscosity of the fusant from the screw extruder is 0.40dl/g-0.50dl/g; and then adding the material into a tempering and viscosity-regulating device, wherein the melt viscosity of the fusant from the tempering and viscosity-regulating device is 0.620dl/g-0.685dl/g. According to the method, by adding a proper amount of glycol, the melt viscosity is increased, meanwhile, the problems that the cycle of a filter is short, and the maintenance quantity of a vacuum system is great are further effectively solved, the production cost is lowered, and the additional value of products is further increased.

The invention discloses an LED ultraviolet self-disinfection mask. The mask comprises a mask body covering the outer side of the mouth and the nose of a human body, and a fixing part connected with the left side and the right side of the mask body. The mask body comprises a filter body and a shell on the periphery of the filter body. The filter body comprises an annular support, an annular lamp panel is arranged on the inner wall of the support, a deep ultraviolet LED is arranged on the lamp panel, and a nano photocatalytic filter screen is fixed to the inner side of the support. An air inletand outlet is formed in the front side of the shell, a main board is arranged in the shell, the main board is electrically connected with the lamp panel, and the shell protrudes forwards so that a cavity can be defined by the shell, the nano photocatalytic filter screen and the human face. Bacteria are killed through photocatalysis of the deep ultraviolet LED, filtration and sterilization are conducted through the silver ion filter screen, and adsorption and sterilization are conducted through activated carbon, so that viruses are killed more thoroughly, air entering a human body and air exhaled by the human body can be fully purified, air flowing in two directions is disinfected air, and cross infection of respiratory diseases is avoided.

The invention discloses a building rubbish crushing and separating device. A crushing device is arranged on one side of a feeding hopper, and a filtering device is arranged on the lower portion of thecrushing device. A screen II is arranged on one side of the crushing device, and a supporting plate II is arranged on one side of a screen I. A spiral plate is arranged in the screen I, and a rotarydisc is arranged on one side of a supporting frame. A supporting rod III is arranged on one side of the rotary disc, and a supporting rod II is arranged on one side of the supporting rod III. A rotaryshaft I is arranged on one side of the supporting rod II, and a worm wheel is arranged on one side of the rotary shaft I. A gear III is arranged at one end of a worm, and a discharging opening VIII is formed in the lower portion of the screen I. A separation device I is arranged on one side of the filtering device, and a guide plate I is arranged on one side of the screen I. A separation bucket is arranged on one side of the guide plate I, and a plurality of electromagnetic bars are arranged on one side of the separation bucket. A gear ring II is arranged on one side of the separation bucket,a gear IV is arranged on one side of the gear ring II, and a screw conveyor is arranged on one side of a guide plate II. The building rubbish crushing and separating device is good in metal separation effect and thorough in screening.

The invention discloses a large sewage treatment device capable of easily cleaning impurities. The device comprises a wastewater filtering box and a control box, a cleaning assembly and an ultravioletsterilization lamp are arranged on the upper side of the interior of the wastewater filtering box; a first liquid inlet penetrates through the upper side of the wastewater filtering box; a sealing pipe is rotationally connected with a filter screen through a bearing; a conveying belt penetrates through the lower side of the interior of the wastewater filtering box, the sealing pipe is communicated with a centrifugal machine through a first wastewater pipe, a pressurizing pump is arranged on a second wastewater pipe, and the rear sides of the first wastewater pipe and the second wastewater pipe are both communicated with a waste liquid evaporation and concentration assembly through connecting pipes. By arranging the sealing pipe, the filter screen and the conveying belt, wastewater filtered by the filter screen is stored in the sealing pipe, the filter screen rotates under the impact of the wastewater, in this way, circulating filtration can be conducted, and a small part of wastewaterin the impurities can be filtered again under the action of holes in the conveying belt.

The invention discloses a cleaning liquid swinging type filtering device for new material cleaning. The cleaning liquid swinging type filtering device for new material cleaning comprises a base, a filtering box, a vibrating filtering box and a driving motor, the filtering box is fixedly installed on the base, a primary filter screen is horizontally and fixedly installed in the filtering box, the vibrating filtering box is slidably installed in the filtering box, a rotating base is fixedly installed on the inner wall of the left side of the filtering box, and a fine filtering box is fixedly connected to the right side of the rotating box through a connecting rod. Lead screws are indirectly driven to rotate by driving a double-shaft motor to intermittently rotate forwards and reversely, thelead screws are matched with translation sliding blocks in a threaded mode, lifting of the translation sliding blocks is achieved according to the rotating direction of the double-shaft motor, therefore, the filtering box is indirectly driven to vibrate vertically, and the secondary filtering speed of cleaning liquid is greatly increased; and through intermittent cooperation of an oblique pushingblock and a matching stopping block, left-right swinging type filtering of the fine filtering box is achieved, the flow rate of the cleaning liquid on a fine filter screen is further increased, and the filtering speed of the cleaning liquid is greatly increased.

The invention provides a noise filtering method and device for Brillouin signal space frequency spectrum regulation and control. The method includes: adding a phase image to the signal light to achieve target distribution presetting of the signal light intensity; loading spiral phase converters with different topological charges on the spectral surface of the first set of optical 4f imaging system, and regulating and controlling the frequency spectrum of the phase image; utilizing a second set of 4f imaging system to image the phase image frequency spectrum into a nonlinear medium, and introducing pump light from the other side of the amplification medium to enable the pump light to perform stimulated Brillouin amplification on the signal light frequency spectrum; adopting a second opticallens of the first set of optical 4f imaging system to carry out inverse Fourier transform and Fourier transform on the signal light spectrum and noise in the mixed light beam output from the nonlinear amplification medium respectively, so as to enable the amplified signal light intensity output through spatial spectrum regulation and control to be distributed at the edge position of the target phase image and to be separated from the noise spectrum focused at one point; and filtering out noise in the mixed light beams through a spatial filter, and obtaining pure amplified signal light.

The invention discloses an environment-friendly sewage purification method, which comprises a box body, a first partition board and a second partition board are arranged in sequence from top to bottom inside the box body, and the inside of the box body is located at the lower layer of the second partition board A sewage bin is provided, and a disinfectant liquid bin is arranged inside the box and on the left side of the upper upper layer of the first partition. The lower right corner of the disinfectant liquid bin is connected with a discharge pipe, and the left end of the discharge pipe runs through the disinfectant liquid bin The right wall extends to the bottom of the disinfectant tank. The invention relates to the technical field of sewage treatment. The environmentally friendly sewage purification device can completely suck out the disinfectant and coagulant by setting a certain inclination to the bottom of the disinfectant tank and the coagulant aid, reducing waste, using the disinfectant to disinfect the sewage, and using the auxiliary The coagulant accelerates the adsorption of toxic particles such as heavy metals. The combined use of disinfectant and coagulant aid not only enhances the disinfection ability, but also shortens the precipitation time of particles and improves the purification efficiency.

The invention discloses a cleaning device for marine organism food processing. The cleaning device comprises a charging hopper, a rotary bin, a shaking filter stand, a motor, a water supply pipe, a water distribution pipe, a discharging bin, a dreg storing bin, a first filter disc, water spraying frames, a pulling column, a second filter disc, a filter cone, a filter screen, a turnover discharge spout, a turnover shaft, an expansion joint frame, a movable rod, a water spraying expansion column and a turnover closing plate. The cleaning device disclosed by the invention has the beneficial effects that multiple levels of filter discs are utilized for carrying out rotary filtration of dregs on the surfaces of marine organisms, and the pulling column is matched to pull the first filter disc to carry out up and down reciprocating type movable filtration, so that the marine organism food has stronger activity, the filtration is more sufficient and thorough, and the filtration comprehensiveness is ensured; a plurality of water spraying frames are arranged around the second filter disc to form a circular structure and are used for spraying water for cleaning the marine organisms, so that the cleaning angles for the marine organisms are more perfect, the cleaning is more comprehensive, and the cleaning efficiency is ensured; and the device is convenient to operate and is stable and firm, and all components are connected flexibly.

The invention relates to a filtering device, in particular to a sand and stone filtering device for oil production. The technical problem to be solved by the invention is to provide a sand and stone filtering device for oil production, which is high in filtering efficiency, and clean and thorough in filtration. In order to solve the technical problem, the sand and stone filtering device for oil production, provided by the invention, comprises a settling tank and the like; supporting legs are mounted at four corners at the bottom of the settling tank in a manner of bolt connection; a coarse filtering device is arranged on the left side at the top of the settling tank; a feed pipe is arranged at the top of the coarse filtering device; a fine filtering device is arranged on the right side atthe top of the settling tank. The sand and stone filtering device for oil production, provided by the invention, has the benefits that through the coarse filtering device, the settling tank and the fine filtering device, sand and stones carried by oil are filtered and settled; through a stirring device and an accelerating device, the filtering efficiency is improved; through a material scraping device, the settled sand and stones are concentrated to the left part inside the settling tank, so that the effects of high filtering efficiency, and clean and thorough filtration are achieved.

The invention belongs to the technical field of gas purifying, and more specifically relates to a device used for collecting dust fog, and a method thereof. The device comprises a collecting tank mainbody and a collecting tank; the collecting tank is arranged in the collecting tank main body; a gas inlet pipe is designed to penetrate through the bottom of the collecting tank main body and the bottom of the collecting tank into the collecting tank; a gas inlet axle tube in the collecting tank is provided with a gas inlet; cylindrical filter screens are arranged in the collecting tank at intervals taking the gas inlet axle tube as a center; a gas outlet is arranged at the top of the collecting tank corresponding to a peripheral cylindrical filter screen; the top of the collecting tank mainbody is provided with a gas outlet pipe; the top of the collecting tank main body is connected with the collecting tank through a rotating shaft connected with a motor; the periphery of the collectingtank is provided with water outlets; a water discharge pipe is arranged at the bottom of the collecting tank main body. According to the method, silk screens and active carbon fiber in the collectingtank are used for purifying dust fog and exhaust gas, and collecting corresponding water and micro dust, so that separation technology problems of water and micro dust with gas are solved.

The invention discloses a heat exchanger for a transformer additionally provided with an oil purifier. The heat exchanger comprises a cooling box and a spiral cooling pipe, wherein the cooling pipe is arranged in the cooling box and comprises a first oil inlet pipe and a first oil outlet pipe; the first oil inlet pipe and the first oil outlet pipe are connected with an oil tank of the transformer; a filter(s) are/is arranged on the first oil inlet pipe and/or the first oil outlet pipe; each filter comprises a connecting pipe; a valve is arranged at each of two ends of each connecting pipe; a detachable filter pipe is arranged between the two valves and comprises an oil inlet filter pipe and an oil outlet filter pipe which are detachably connected with each other; a filter screen which is used for filtering impurities is arranged on the oil inlet filter pipe and is recessed towards the oil outlet side to form a recess which is used for accommodating the impurities; a first permanent magnet and a second permanent magnet which are used for adsorbing iron scraps are arranged on the oil outlet filter pipe; an oil discharging device is arranged at the bottom of the filter pipe. A circulation device is good in cooling effect, and can also be used for filtering transformer oil and protecting the transformer; when the oil tank of the transformer is used, the filter pipe can be disassembled and cleaned so as not to block a channel.

The invention discloses a structurally reliable industrial wastewater treatment equipment, which comprises a wastewater treatment equipment, a first filter room, a sedimentation room, a disinfectant storage room, a disinfection room, and a second filter room; in order to realize the structurally reliable industrial wastewater treatment The equipment can realize the complete sewage discharge of sedimentation and no electricity treatment. The wastewater treatment equipment is equipped with a first filter chamber, through which the filtered water is introduced into the sedimentation chamber for sedimentation, and the sewage can be completely discharged through the sewage wheel in the sedimentation chamber. The structure is simple, easy to use, and can thoroughly filter industrial sewage, with high filtration efficiency and good filtration effect, which can prevent environmental pollution, is economical and environmentally friendly, and can fully precipitate the wastewater to remove impurities. , and the structure is stable and the service life is long.

The invention relates to a fully-automatic glass edge polishing device for a tempered glass production line. The fully-automatic glass edge polishing device comprises a rack, a transmission mechanism,an edge polishing mechanism, swabbing mechanisms and a filtering mechanism; the rack is provided with the transmission mechanism, and the edge polishing mechanism is mounted on the position, in the middle of the transmission mechanism, of the rack; the swabbing mechanisms are mounted on the two sides of an edge polishing wheel of the edge polishing mechanism correspondingly; the filtering mechanism is mounted on the lower portion of the rack, and the filtering mechanism is connected with the swabbing mechanisms through a water pipe in a communicating mode, wherein the water pipe is provided with a water pump; and waste residue generated by edge polishing flows into the filtering mechanism along with water flows of the swabbing mechanisms, water filtered by the filtering mechanism is reused for a flushing mechanism, and thus recycling of water resources is achieved. According to the fully-automatic glass edge polishing device, edge polishing machining can be conducted on the two opposite edges of rectangular glass at one time, the working efficiency is improved, meanwhile, waste water is filtered thoroughly through a secondary filtering mode, the service lives of water guns of theswabbing mechanisms and water spraying nozzles of the flushing mechanism are protected, and the polishing efficiency is greatly improved.