79results about How to "Reduce filtration efficiency" patented technology

The invention relates to the technical field of fruit juice production, in particular to fruit juice beverage multi-layer permeation filtering equipment which comprises a barrel shell, a feeding hopper is installed at the top of the barrel shell, and a first filtering mechanism, a second filtering mechanism and a third filtering mechanism are sequentially arranged in the barrel shell from top to bottom in the height direction of the barrel shell; the first filtering mechanism, the second filtering mechanism and the third filtering mechanism are designed to filter fruit juice layer by layer through smaller and smaller filter screen apertures, it is ensured that the fruit juice can be fully filtered, then the fruit juice quality is improved, meanwhile, the fruit juice can be fully filtered through extrusion, stirring and centrifugation, and the fruit juice quality is improved. And juice with pulp particles of different viscosities, different densities and different sizes can be filtered, so that the cost of the device is saved, and the filtering efficiency is improved.

The invention relates to a crushing and grinding process and device for preparing meal replacement food, and belongs to the technical field of food grinding, and the crushing and grinding device for preparing the meal replacement food comprises a grinding tank, a grinding mechanism, a rolling brush mechanism, a cutting and conveying mechanism and a knocking mechanism. Through cooperative use of the rolling brush mechanism and the grinding mechanism, when a rotating grinding disc in the grinding mechanism rotates to grind food raw materials, the rolling brush mechanism can be driven to work, a first spiral brush rotates while rotating, and a second spiral brush can be driven to rotate; the first spiral brush is used for rolling and brushing powdery food raw materials adhered to the gap between the rotating millstone and the bottom millstone, and the second spiral brush is used for rolling and brushing powdery food raw materials adhered to the gap between the rotating millstone and the top millstone, so that accumulation and adhesion of the powdery food raw materials are avoided, and the grinding efficiency is ensured; and the situation that subsequent raw material grinding is polluted due to adhesion of the powdery food raw materials is prevented, and the quality of the prepared meal replacement food is guaranteed.

The utility model discloses a filtering device convenient to clean, which belongs to the technical field of fruit juice production and comprises a filtering box and a filtering assembly, the filtering assembly comprises a sealing plate and two U-shaped filtering frames, the adjacent sides of the two filtering frames are fixedly connected with the sealing plate, the inner side wall of each filtering frame is fixedly connected with a filtering net, and the filtering net is arranged in the filtering box. The adjacent sides of the two filter screens are fixedly connected with the sealing plate, the two side faces of the filter box are slidably connected with the sealing plate through formed through grooves, the end, away from the sealing plate, of the filter frame is fixedly connected with a limiting plate, and the end, away from the filter frame, of the limiting plate is fixedly connected with a U-shaped inverted pulling plate. The two ends of the side face of the limiting plate are fixedly connected with powerful magnets through formed through grooves, the end faces of the powerful magnets are connected with iron blocks in a magnetic attraction mode, the ends, away from the powerful magnets, of the iron blocks are fixedly connected with the filtering box, and the end faces of the iron blocks are embedded into the filtering box. The filtering efficiency of the device is improved.

The utility model discloses an automatic concrete batching device, which relates to the technical field of concrete batching, and comprises a batching outer cylinder, the upper surface of the batching outer cylinder is fixedly provided with a fixed cylinder, the outer ring surface of the fixed cylinder is rotatably sleeved with a rotating ring, and the upper surface of the rotating ring is provided with a plurality of material holes which are through up and down; an air pump is fixedly inserted into the upper surface of the fixed cylinder and located on the left side of the axis of the fixed cylinder, a feeding hopper is fixedly inserted into the upper surface of the fixed cylinder and located on the right side of the axis of the fixed cylinder, a material passing pipe rotationally penetrates through the upper surface of the outer batching cylinder and located under the air pump, and a material spraying disc is fixedly connected to the lower end of the material passing pipe; and a plurality of spraying holes are formed in the inner bottom wall of the material spraying disc. The powder spraying device is reasonable in design structure, air can be blown into the communicated material holes through the air pump, powder in the material holes is blown into the material spraying disc from the material passing pipe, the powder in the material spraying disc is sprayed out from the spraying holes under the driving of air flow and evenly scattered to the surface of a mixture below, and the powder and the mixture inside the powder can be evenly mixed conveniently.

The utility model discloses a chlorine filtering device which comprises a filtering box, a gas inlet pipe and a gas outlet pipe are arranged at the two ends of the filtering box respectively, a partition plate is arranged in the filtering box and divides the interior of the filtering box into two channels, and at least two filtering elements are evenly distributed in each channel. According to the chlorine gas filtering device, the filtering efficiency of impurities in chlorine gas can be improved, meanwhile, replacement is convenient, time is saved, and the chlorine gas collecting efficiency is improved.

The utility model relates to the field of filter screens, provides a filter screen with an automatic dredging function for sewage filtration, and aims to overcome the defect that the conventional filter screen cannot be automatically dredged, the filter screen comprises a sewage pipeline and a filter screen, the filter screen is arranged in the sewage pipeline, a cleaning brush is tightly attached to the front side of the filter screen, and a baffle is welded on the water inlet side of the sewage pipeline. A flow guide pipe penetrates through the upper side of the baffle, a rotating shaft is rotationally arranged in the sewage pipeline and located between the baffle and the filter screen, paddles are welded to the rotating shaft, a lifting mechanism for driving the cleaning brush to ascend and descend is arranged on the outer side of the sewage pipeline and comprises a lead screw, and a linkage mechanism is arranged between the rotating shaft and the lead screw. According to the utility model, the washing brush can be driven to lift in a reciprocating manner to brush impurities on the surface of the filter screen by utilizing the flushing force of sewage flowing in and a mechanism, the filter screen can be automatically cleaned and dredged, time and labor are saved, the cost is saved, the filtering work can still be carried out in the cleaning process, and the sewage filtering efficiency is prevented from being reduced.

The utility model discloses a roller structure of a stainless steel membrane drum filter, which relates to the technical field of filter equipment and comprises a filter body, an end cover is rotatably connected to the inner wall of the filter body, and a roller frame is fixedly connected to the surface of the end cover. A collecting hopper penetrating through the surface of the filter body is fixedly connected into the filter body, a bidirectional lead screw is rotatably connected to the inner wall of the collecting hopper, a lead screw nut is in threaded connection with the surface of the bidirectional lead screw, a moving block is slidably connected to the inner wall of the collecting hopper, and a conical scraper is fixedly connected to the bottom of the moving block. According to the roller structure of the stainless steel membrane drum filter, impurities in the collecting hopper can be continuously pushed in the implementation process of the device, and the discharge of the impurities is accelerated, so that the situation that the water quality filtering efficiency of the device is reduced due to the fact that the impurities continuously fall into a water body due to the fact that the impurities stay in the device for a long time is avoided.

The application discloses a kind of intelligent filter-pressing devices and processes suitable for organic silicon of filter-pressing device technical field, including support seat, the front and rear ends of the support seat are all fixedly connected with main beam, and the side away from support seat between two main beams is fixedly connected with thrust plate;After the end of filter-pressing, external controller will control drive block to open filter plate one by one, filter cake falls off, during the movement of filter plate, filter cloth will be separated from filter plate under the action of separation plate, which is conducive to the separation of filter cloth and filter plate, the filter residue attached to the surface of filter cloth can be separated from filter plate, which is convenient for subsequent cleaning, to avoid filter cloth and filter plate sticking together during cleaning, filter residue will be closely attached to the surface of filter cloth and filter plate during filter-pressing, which makes it difficult to clean;Subsequently, the filter residue on the surface of filter cloth will be scraped off by scraping block, which is conducive to cleaning the filter residue remaining on the surface of filter cloth after one filter-pressing, to avoid the influence of residual filter residue on the filtering effect of filter cloth.

The present application relates to the technical field of air filtration equipment, and specifically discloses an air filter for environmentally friendly emission, including two positioning circular plates, two air filter components are arranged between the two positioning circular plates, and air guide components are respectively arranged on the opposite sides of the two positioning circular plates, and the air filter component includes a vertical plate I and a vertical plate II, and the vertical plate I and the vertical plate II are connected to a filter element on the side away from each other, and the filter element is of a folding design, and the two air guide components are respectively used for the outflow of filtered gas and back-blowing high-pressure gas to clean the filter surface of the filter element. Through the structural setting of the air filter component composed of the vertical plate I, the vertical plate II and the filter element and the characteristics of the folding design of the filter surface of the filter element, after back-blowing the high-pressure gas to the filter element, the filter surface of the filter element is overlapped, and the dust, particulate matter and other impurities on the outside of the filter element after back-blowing fall to the bottom of the filter element, and will not be re-attached to the filter surface of the filter element, thereby improving the back-blowing effect of the filter element in the air filter component.

The utility model discloses an air filter with a self-sealing device, and relates to the technical field of air filters, the air filter comprises a filter shell, one side of the filter shell is connected with a driving motor in a penetrating manner, one side of the filter shell is connected with a back cover plate through bolts, one side of the filter shell is provided with a sealing cover, and the back cover plate is connected with the sealing cover through bolts. A dust cleaning mechanism is arranged on the outer side of the sealing cover, dust cleaning treatment is conducted on the interior of the filtering shell through the dust cleaning mechanism, the situation that dust accumulates in the filtering shell and influences the filtering quality is avoided, a filtering mechanism is arranged in the filtering shell, and the filtering mechanism is flexibly fixed in the filtering shell; and the disassembly and replacement efficiency of the air filter is improved. An operator controls an electric telescopic rod, the electric telescopic rod is used for driving a cleaning frame and a cleaning brush which are arranged on the outer side to move repeatedly, then the front end part of the filter shell is cleaned repeatedly, and dust is prevented from being attached to the front end of the filter shell.

The invention relates to the technical field of sewage treatment equipment, and particularly discloses an environment-friendly sewage treatment device which comprises a cleaning tank, a water inlet pipe is arranged on the left side wall of the cleaning tank, an opening is formed in a bottom plate of the cleaning tank, a water outlet pipe is arranged in the opening, a rotating shaft is arranged in the cleaning tank, and a filter screen cylinder is arranged on the periphery of the rotating shaft. Four shaping plates are fixedly mounted on the inner wall of the filter screen cylinder, the four shaping plates are connected with the outer wall of the rotating shaft through a plurality of supporting frameworks, and a fixed gear ring is movably mounted at the top end of the filter screen cylinder. The driving gear drives the fixed gear ring to rotate, so that the scraping plate, the scraping plate and the cleaning plate can scrape impurities on the surfaces of the filter screen cylinder and the filter plate, and the situation that in the long-time using process, meshes in the surfaces of the filter screen cylinder and the filter plate are blocked by the impurities, and consequently the filtering efficiency is reduced is avoided.

The invention discloses an integrated urban sewage water treatment device and a method for using the device, comprising a treatment component, wherein a plurality of mutually parallel isolation plates are fixedly connected inside the treatment component, a cleaning mechanism is installed on the upper surface of the treatment component, and a collecting mechanism is installed inside the treatment component; through the arrangement of structures such as the treatment component, the isolation plate, the cleaning mechanism, the collecting mechanism, the aeration mechanism, and the drug delivery and disinfection mechanism, during the sewage treatment process, the sewage is circulated inside the treatment shell through a water supply pump, and through the arrangement of an aeration fan, the aeration device inputs oxygen into the aerobic bin, thereby improving the activity of microorganisms inside the aerobic bin, thereby making the reaction effect of the aerobic bin better, and at the same time, through the arrangement of a drainage pump, the sewage sediment inside the aerobic bin, the anaerobic bin and the sedimentation bin is discharged, making the sewage treatment more convenient.

The invention relates to the technical field of dust recovery, and particularly discloses corrugated board production dust recovery equipment which comprises an equipment base, a belt transmission assembly is arranged on the inner side of the equipment base, a sealing assembly is arranged at the top of the equipment base, and the sealing assembly comprises a supporting seat fixedly connected to the top of the equipment base. The top of the supporting seat is fixedly connected with a fan, and the outer side of the fan fixedly communicates with a fixed pipe; after the draught fan is started, dust in the supporting base can be pumped into the filtering mechanism through the fixing pipe by means of the air pumping effect of the draught fan. Dust is gradually accumulated on the filter screen, and when the accumulation amount reaches a certain degree, the filtering efficiency is reduced. At the moment, the driving mechanism is triggered under the action of wind pressure. And the driving mechanism drives the mounting shaft in the mounting seat to rotate. When the filter screen is completely moved into the butt joint pipe, the mounting shaft drives the mounting seat to synchronously rotate, so that the whole filtering mechanism is convenient to replace, and the problems that the replacement is difficult and the working efficiency is influenced in a traditional mode are effectively solved.

The utility model relates to the field of reverse osmosis water treatment equipment, and discloses anti-scale reverse osmosis water treatment equipment which comprises a base and a support, the support is fixedly connected to the top end of the base, a raw water tank is arranged on the left side of the support, a water storage tank is arranged on the right side of the support, and a multi-stage reverse osmosis filter assembly is arranged between the raw water tank and the water storage tank. The multi-stage reverse osmosis filtering assembly comprises a first osmosis membrane tank, a second osmosis membrane tank, a third osmosis membrane tank and a fourth osmosis membrane tank. According to the anti-scaling reverse osmosis water treatment equipment, the water outlet is formed, a descaling opening is independently designed, a special connecting pipe is additionally arranged to discharge waste into a waste water tank, after the equipment stops running, waste water can be rapidly discharged, and the scaling risk on the surface of a reverse osmosis membrane and in a pipeline is reduced; pressure can be independently adjusted among different filtering levels, water flow is prevented from being retained in the multi-level filtering process, and the problems of scale deposition and wastewater retention are solved.

The utility model relates to filter technical field, concretely is a kind of filter disc;It includes mounting plate, automatic cleaning mechanism, buffer assembly and cleaning brush;Automatic cleaning mechanism is set to the side of mounting plate;Buffer assembly is set to the inside of automatic cleaning mechanism;Cleaning brush is set on automatic cleaning mechanism, and the bottom of cleaning brush is equipped with filter disc body.The utility model is set through the setting of automatic cleaning mechanism, motor drives filter disc body to rotate through round gear and gear ring, and at the same time motor drives cleaning brush to move back and forth through synchronous pulley one and synchronous pulley two, so that filter disc surface each area is exposed to cleaning brush in turn, avoid fixed area and form stubborn accumulation due to long-term contact with pollutant, while covering all radial positions on filter disc surface, ensure that each sector area is washed, and in collaborative cleaning mode, rotation and movement synchronous can shorten cleaning time, improve cleaning efficiency.

The invention relates to the field of screen cover plate sweeping technology, and discloses a screen cover plate sweeping grinding liquid recycling device, comprising a centrifugal assembly, the centrifugal assembly comprising an outer shell, a bottom plate fixedly connected to the bottom of the outer shell, and a collecting trough fixedly connected to the outer surface of the bottom plate. The filter cartridge 1 of the invention will drive the rotating plate 1 to rotate together during the rotation process, and the rotating plate will first stretch the spring 2 and finally contact with the fixed plate. In the process of the rotating plate stretching the spring 2, the filter cartridge 2 cannot be completely pulled by the elastic force of the spring 2 alone, and when the rotating plate contacts the fixed plate, the filter cartridge 1 will drive the filter cartridge 2 to rotate together, at this time, the sieve holes on the filter cartridge 1 and the sieve holes on the filter cartridge 2 will partially overlap, and the grinding liquid can only pass through the overlapping part of the sieve holes, and when the filter cartridge 1 stops rotating, the filter cartridge 1 will be pulled back to its original position by the spring 2, and the area of ​​the overlapping part of the sieve holes on the filter cartridge 1 and the sieve holes on the filter cartridge 2 will increase, thereby allowing the particles stuck in the sieve holes to fall off.

The embodiment of the utility model provides an air filtering device and purification equipment, and relates to the technical field of filter screens. The purification equipment comprises a filtering device, and the filtering device comprises a first polar plate unit and a second polar plate unit which can be mutually assembled and disassembled. The first polar plate unit comprises a first mounting column and a plurality of first polar plates arranged at intervals in the extending direction of the first mounting column, the second polar plate unit comprises a plurality of second sub-polar plate units, each second sub-polar plate unit comprises a plurality of second polar plates arranged at intervals in the first direction, and the first polar plates and the adjacent second polar plates are alternately arranged; when a user needs to clean the polar plate in the filtering device, the second sub-polar plate unit can be separated, and the second sub-polar plate unit is separated from the first polar plate unit, so that the user can conveniently clean the first polar plate and the second polar plate, and the reduction of the air filtering efficiency caused by dust accumulation is prevented.

This application discloses a filtration device and a dishwasher. The filtration device includes a water collection shell, a filter assembly, and a push-suction component. The water collection shell has a water collection cavity with an inlet at the top. The filter assembly includes a primary filter and a secondary filter arranged sequentially along the water flow direction. The secondary filter is disposed within the water collection cavity, dividing the cavity into an inner filter cavity and an annular outer cavity surrounding the inner filter cavity and communicating with the inlet. The secondary filter includes a top sealing cap and a cylindrical filter screen disposed below the top sealing cap. The push-suction component includes a push surface and a suction surface arranged opposite to each other along the direction of rotation. During rotation, the push surface exerts a radial component of its pushing force on the water to push the water out of the annular outer cavity. During rotation, the suction surface exerts a radial component of its suction force on the water to draw the water into the inner filter cavity. The technical solution of this application can improve the filtration efficiency of the filtration device.

The utility model belongs to the technical field of refuse leachate treatment, and particularly relates to a refuse landfill leachate treatment device which comprises a main body, an opening is formed in the bottom of the main body, a filtering mechanism is arranged in the main body, a guide plate is fixedly connected below the main body, an odor removing mechanism is arranged below the guide plate, and a pH adjusting mechanism is arranged below the odor removing mechanism. A feeding and discharging opening is formed in the front side of the main body corresponding to the filtering mechanism, and a control mechanism is arranged at the feeding and discharging opening of the front side of the main body. The refuse landfill penetrating fluid treatment device has the advantages that the lower portions of the four first linear telescopic devices are hinged to the four corners of the arc-shaped filter plate respectively, refuse can be evenly distributed in the middle of the arc-shaped filter plate, and solid refuse and penetrating fluid can be better separated; and meanwhile, the garbage is uniformly distributed again through four linear telescopic devices I after each extrusion, so that the situation that the arc-shaped filter plate is blocked by long-time filtering and the filtering efficiency of garbage penetrating fluid is reduced is prevented.

The utility model discloses an acrylic resin filtering mechanism convenient to clean, which comprises a mounting box base body for mounting, a motor fixedly mounted in the middle of the upper end of the mounting box base body, a filter cartridge, a bump and a baffle plate, the filter cartridge is mounted in the middle of the inner side of the mounting box base body, and the upper end of the filter cartridge is provided with a feed opening; the middle of the upper end of the filter cartridge is fixedly connected with the output end of the motor, a stabilizing block is fixedly mounted on the outer side of the upper portion of the filter cartridge, the outer section of the protruding block is mounted in the mounting plate, the outer end of the protruding block is fixedly connected with a connecting plate, and the connecting plate is connected with the inner wall of the mounting plate through a first spring. The baffle is mounted at the lower end of the filter cartridge. According to the acrylic resin filtering mechanism convenient to clean, a mixture is filtered in a rotary centrifugal mode, the filtering efficiency of the device is improved, filtered solid impurities can be conveniently and rapidly cleaned, filtering holes are effectively prevented from being blocked by the impurities, and the filtering efficiency is prevented from being reduced.

The utility model belongs to the technical field of filters, particularly relates to a filter with good sealing tightness, and provides the following scheme aiming at the problem of sealing tightness: the filter comprises a support column, the upper surface of the supporting column is fixedly connected with a cylinder body; one side of the outer circular surface of the cylinder body is fixedly connected with a water outlet; the other side of the outer circular surface of the cylinder body is fixedly connected with a water inlet; the upper surface of the cylinder body is fixedly connected with a sealing cover; the inner bottom surface of the cylinder body is fixedly connected with a sleeve; and the upper surface of the sleeve is fixedly connected with a filter stick. Through the arrangement of the sleeve and the mounting groove, the sealing tightness of the filter stick is realized; through the arrangement of the through holes, the problem that the filtering area is reduced due to the addition of the sleeve is avoided, and the filtering efficiency is prevented from being reduced.

The utility model relates to the technical field of methanol energy recovery, in particular to a high-pressure methanol energy recovery device which comprises a methanol separation tank, a discharge end of the methanol separation tank is communicated with a methanol filter, and a discharge end of the methanol filter is respectively communicated with a hydraulic turbine power generation device and a pressure reducing valve. One end of the hydraulic turbine power generation device is communicated with a pre-rectification system, the hydraulic turbine power generation device converts recycled energy into electric energy and then conveys the electric energy to the electric power system, the output end of the pressure reducing valve is communicated with the pre-rectification system, a filter element is inserted into the top face of the methanol filter, and the lower end of the methanol filter is communicated with an air inlet pipe. Effective recycling of high-pressure methanol energy is achieved, production interruption caused by faults of a hydraulic turbine power generation device is avoided, the backwashing assembly removes impurities accumulated on the surface of the filter element from the filter element through high-pressure nitrogen, the filtering performance of the filter element is conveniently and rapidly recovered, and the running stability and reliability of the methanol filter are improved.

The utility model provides an electrophoretic coating recycling device, which relates to the technical field of electrophoretic coating and comprises a filter box, two first square holes are symmetrically formed in the top of the filter box, first annular plates are fixedly connected to the interiors of the first square holes, first annular grooves are formed in the tops of the first annular plates, and second square holes are symmetrically formed in the top of the filter box. L-shaped annular plates are embedded in the first annular grooves, second annular plates are fixedly connected to the interiors of the L-shaped annular plates, and filter screen plates are fixedly connected to the interiors of the second annular plates at equal intervals. According to the electrophoretic coating waste liquid filtering device, the filter screen in one of the first square holes can be taken out by detaching the bolts on the cover plate, the effect of conveniently detaching and cleaning the filter screen can be achieved, and meanwhile, the other first square hole can still filter electrophoretic coating waste liquid in the detaching and cleaning process; and the effect of preventing the equipment from being shut down in the cleaning and dismounting process can be achieved, so that the effect of guaranteeing the production efficiency can be achieved, and an enterprise can carry out production operation more efficiently.

The utility model relates to a combined type water purification filter element, which belongs to the technical field of combined type water purification filter elements and comprises a filter element body, a positioning roller is detachably inserted in the filter element body, and a filter cotton layer and an ultrafiltration membrane layer are sequentially sleeved on the outer side of the positioning roller. A second threaded pipe is arranged on one side of the filter element body, the water outlet end of the second threaded pipe is communicated with a plurality of manifolds, the multiple manifolds are distributed on the outer side of the filter element body in a circumferential array mode, and the ends, not communicated with the second threaded pipe, of the multiple manifolds are communicated with the interior of the filter element body; and a plurality of water through holes are formed in the positioning roller in a penetrating manner. Water is discharged into the filter element body from the water outlet ends of the manifolds, so that the water uniformly enters the filter element body to be in contact with the filter material, the situation that the same position of the filter material is gradually blocked by impurities due to the fact that the water enters the filter element body and continuously impacts the same position of the filter material is avoided as much as possible, and reduction of the filtering efficiency of the filter material is favorably avoided.

The utility model relates to the technical field of medicinal and edible food processing and fermentation, and discloses a Chinese herbal medicine fermentation device for medicinal and edible food processing, which comprises a base and an operation barrel fixedly mounted on the base, and a fermentation barrel is fixedly mounted at the upper end of the operation barrel. A stirring assembly for stirring medicinal and edible food is arranged on the operation barrel, a scraping assembly for scraping the inner wall of the fermentation barrel is arranged on the stirring assembly, and under cooperation of a telescopic air cylinder, a filter pressing sieve plate, a second cavity, a driving motor, a first rotating shaft, a belt, a second rotating shaft and a stirring gear, materials can be fermented; the Chinese herbal medicine raw materials are crushed into small particles through rotation of the two stirring gears, the surface area is increased to accelerate the subsequent fermentation reaction, and under cooperation of the penetrating plate, the sliding groove, the telescopic air cylinder, the filter pressing sieve plate and the penetrating pipe, the situation that the materials block the filter pressing sieve plate, and consequently the fermentation efficiency is reduced can be avoided.

The utility model belongs to the technical field of filtering devices, particularly relates to an inlet filtering device of a desulfurization gypsum cyclone, and aims to solve the problems that when an existing inlet filtering device of the desulfurization gypsum cyclone is used, a filter screen cannot be cleaned in the filtering process, solid impurities are easily attached to the filter screen in the filtering process, and the filter screen cannot be cleaned. In order to solve the problems that in the prior art, the filter efficiency of a filter screen is gradually reduced, and solid impurities cannot be conveniently cleaned and collected after filtration, the utility model provides the following scheme that the device comprises a shell, four supporting legs are fixedly mounted at the bottom of the shell, a fixing plate is fixedly mounted on one side of the shell, and a motor is fixedly mounted on the fixing plate; and an output shaft of the motor is fixedly connected with a transmission shaft. The filtering device is reasonable in structure, the filter screen can be cleaned in the filtering process, solid impurities on the filter screen can be conveniently cleaned and collected after filtering, and the filtering efficiency is high.