393results about How to "Reduce cleaning frequency" patented technology

The rotary cross-flow ceramic membrane filtering device comprises a shell, a main shaft unit arranged in the shell and a power unit for driving the main shaft unit to rotate, the power unit provides rotating power for the main shaft unit and drives the filtering disc to rotate, the main shaft unit is installed in the shell and executes a specific filtering task, and the shell provides necessary support and protection for the main shaft unit and the power unit and controls inflow and outflow of materials. According to the rotary cross-flow ceramic membrane filtering device provided by the invention, the ceramic membrane filtering disc is arranged, so that the filtering efficiency and the system stability are improved, the operation cost is reduced, and the rotary cross-flow ceramic membrane filtering device is suitable for being widely applied to various industrial fields needing efficient filtering solutions.

The invention relates to the technical field of coolers, and provides a plate type cooler which comprises a box body and a spraying pipe and further comprises a plurality of heat exchange plates, the heat exchange plates are arranged in the box body at intervals and located below the spraying pipe, every two adjacent heat exchange plates are communicated, each heat exchange plate comprises a plate body, each plate body is provided with a cavity, and heat exchange water is introduced into each cavity; the multiple turbulent flow strips are arranged in the cavity at intervals, each turbulent flow strip is provided with a baffling part and a turbulent flow part, one end of each baffling part is arranged on the inner wall of the plate body, and each turbulent flow part is rotationally arranged at the other end of the corresponding baffling part; the control piece penetrates through one side of the plate body and extends out of the box body, the control piece is provided with a connecting end, the connecting end is arranged on the turbulent flow part, and the control piece is used for driving the turbulent flow part to rotate. By means of the technical scheme, the problems that in the prior art, due to the fact that channels between the plates of a traditional plate cooler are very narrow, the phenomenon of blockage after scaling is prone to occurring, and the heat exchange effect is affected are solved.

The invention discloses an ammonia-nitrogen wastewater treatment device and method capable of generating target ammonium salt, the ammonia-nitrogen wastewater treatment device comprises a bipolar membrane electrodialysis device and a membrane contactor, the bipolar membrane electrodialysis device comprises at least one treatment unit and an anode chamber and a cathode chamber which are separated by the treatment unit; the treatment unit comprises a front bipolar membrane, a front cation exchange membrane, a middle bipolar membrane, an anion exchange membrane, a rear cation exchange membrane and a rear bipolar membrane which are sequentially arranged in the direction from the anode chamber to the cathode chamber, and a feeding chamber, an ammonia production chamber, an acid production chamber, a desalting chamber and an alkali production chamber are respectively formed in spaces generated between the corresponding membranes; the membrane contactor comprises a breathable hydrophobic membrane dividing an inner cavity of the membrane contactor into a first chamber and a second chamber, and the first chamber and the second chamber communicate with the ammonia production chamber and the acid production chamber through pipelines correspondingly. And the method has relatively high application and popularization values.

The utility model discloses a rotary valve structure of a dust cup of a dust collector, which comprises an outer dust cup, a plurality of first cavities are arranged in the outer dust cup, a first communication hole is arranged on a partition plate, and the outer dust cup is provided with a first dust discharge port corresponding to a dust discharge channel of a base station of the dust collector; and the inner dust cup is rotationally connected to the partition plate and provided with a second communicating hole and a second dust discharging opening, and a linkage piece corresponding to a rotary guide groove in the dust collector base station is arranged on the outer side of the inner dust cup. The outer dust cup and the inner dust cup form a rotary valve structure, so that when the dust collector host and a base station are assembled in a butt joint manner, the linkage piece is matched with the rotary guide groove to rotate the inner dust cup, each dust collection cavity and a corresponding filtering structure are blocked, and dust is prevented from flowing reversely when garbage in the dust cups is discharged and recycled; and dust, hair and dirt with different particle sizes intercepted by the dust collection cavities are discharged respectively, dirt and garbage blockage in the dust discharge channel is avoided, and therefore it is guaranteed that the dust collector is used neatly, conveniently and efficiently.

The invention provides a modified silicone oil agent with a comb-shaped structure as well as a preparation method and application thereof, the oil agent comprises an amino modified silicone oil emulsion and an epoxy modified silicone oil emulsion, and the mass ratio of the amino modified silicone oil emulsion to the epoxy modified silicone oil emulsion is 1: (0.5-1.5); the amino modified silicone oil emulsion and the epoxy group-containing modified silicone oil emulsion have comb-shaped structures, main chains of the amino modified silicone oil and the epoxy group-containing modified silicone oil are acrylate polymers, and branch chains are amino short silane chains or epoxy group-containing short silane chains; the preparation method of the oiling agent comprises the following steps: respectively preparing amino short-chain silicone oil and epoxy group-containing short-chain silicone oil, and then respectively synthesizing amino modified silicone oil emulsion and epoxy group-containing modified silicone oil emulsion. The acrylate polymer is introduced, the content of organic silicon is reduced, the viscosity of the oiling agent is small, carbon fibers are conveniently oiled, a protective film is formed on the fibers, friction and abrasion between the fibers are prevented, and therefore the surface defects of the carbon fibers are reduced.

The utility model relates to the technical field of RTO tail gas treatment and purification, and discloses a multi-working-condition adaptive RTO tail gas purification treatment device which comprises a box body, a combustor is arranged in the middle of the upper end of the interior of the box body, U-shaped pipes are arranged at the four corners of the upper end of the interior of the box body, through holes are evenly formed in one side of the exterior of each U-shaped pipe at intervals, and the through holes are communicated with the combustor. And an activated carbon filter plate is arranged at the lower end in the box body. When the device is used, tail gas is sucked into the box body through the arranged sucking pump, particulate matter in the tail gas is effectively filtered through the electrostatic rod and the activated carbon filter plate, corrosion and blockage of parts in equipment are reduced, the service life of the equipment is prolonged, the cleaning and maintenance frequency is reduced, and the operation efficiency and stability of the equipment are improved; and when the electrostatic rod and the activated carbon filter plate are used for a long time, the box door is opened to facilitate quick replacement, so that the maintenance time is saved, the downtime is reduced, and the equipment operation efficiency is further improved.

The invention relates to the technical field of water treatment, and particularly discloses a seawater desalination reverse osmosis membrane and a preparation method thereof. The sea water desalination reverse osmosis membrane comprises a base membrane layer and a separation layer, the base membrane layer comprises a base layer and a porous support layer, and the sea water desalination reverse osmosis membrane is characterized in that the separation layer comprises the following raw materials in parts by weight: 15-20 parts of bis-2-6-N, N-dimethyl formamide, 1-5 parts of sodium hydroxide and 1-5 parts of sodium hydroxide; the environment-friendly anti-corrosion coating is prepared from the following components in parts by weight: 20 to 30 parts of N, N-(2-ethoxyl) diaminotoluene, 10 to 15 parts of triethylamine, 20 to 30 parts of camphorsulfonic acid, 10 to 15 parts of trifluoroacetic anhydride, 0.5 to 1.5 parts of sodium dodecyl sulfate, 10.5 to 20.5 parts of modified microcapsules, 0.5 to 1.5 parts of trimesoyl chloride and 150 to 180 parts of isoparaffin solvent. The reverse osmosis membrane for seawater desalination can be used in the field of seawater desalination, and has the advantages of high chemical stability, large water flux and excellent durability.

The utility model discloses a connecting structure of a dust collector base station and a dust collector host. A dust cup cover is arranged at the end of the dust collector dust cup, and a plurality of dust collection cavities are formed in the dust collector dust cup in the axis direction; the dust collection structure is elastically clamped on the side surface of the dust collector dust cup; the dust collector base station comprises a sleeving structure and a base, a clamping sleeve structure is arranged on the sleeving structure, a notch with a lateral opening is formed in the clamping sleeve structure, a dust collector dust cup is inserted into the clamping sleeve structure, and the dust collecting structure is arranged in the notch in a penetrating mode; a dust exhaust channel is arranged in the dust collector base station and communicated with a base station dust cup in the base, and an exhaust structure is arranged on the base station dust cup. According to the utility model, the dust collection cavities in the dust collector host can be fully and efficiently discharged and recycled without disassembly, the dust collector host and the base station are stably positioned, the influence of motor vibration and airflow dust impact on the connecting structure is reduced, and the efficient and neat use of the dust collector host and the base station is ensured.

The invention relates to a pusher capable of recycling percolate, a percolate recycling device and a waste incineration device.The pusher comprises a rack, a material pushing trolley, a driving device, a first percolate channel, a second percolate channel, a third percolate channel and an inclination angle adjusting device.The material pushing trolley is arranged on the rack in a sliding mode, and the driving device is in transmission connection with the material pushing trolley; the material pushing trolley comprises an upper-layer trolley body and a lower-layer trolley body, the first percolate channel penetrates through the rack, the second percolate channel penetrates through the lower-layer trolley body and the rack, the third percolate channel penetrates through the upper-layer trolley body and the rack, the first percolate channel, the second percolate channel and the third percolate channel are sequentially arranged, and the inclination angle adjusting device is used for adjusting the included angle between the rack and the horizontal plane. According to the pusher, leachate recovery can be increased, the water content of garbage entering a furnace is reduced, the garbage can be dried more quickly, the combustion efficiency of a fire grate is improved, the conditions that leachate in a slag hopper of a drying section of the fire grate overflows and the interior of an ash hopper is coked are avoided, and interference to operation and maintenance is reduced.

The utility model provides a packaging bag trimming waste recovery device which comprises a machine frame and further comprises a cutting assembly, a guide assembly, a recovery assembly and a traction assembly, the trimming waste is recovered through the recovery assembly, the trimming waste is wound on the surface of a waste roller, the number of the trimming waste can be visually known, and the waste can be recycled. The machine does not need to be stopped to observe the waste accumulation condition, normal operation of production is guaranteed, meanwhile, when too much waste is wound, the waste roller can be taken down only by taking down the limiting part on the surface of the recovery rod, replacement can be completed by installing a new waste roller, replacement is very convenient, replacement efficiency is improved, production efficiency is guaranteed, and the device is more reliable and convenient to use. And by arranging a traction assembly, the trimming waste materials are dragged, so that the trimming waste materials are uniformly wound on the surface of the waste material roller, the waste materials are prevented from being only wound at one position, the waste material storage amount of the recycling device is increased, the cleaning frequency is reduced, and the production efficiency is improved.

The utility model relates to the technical field of degassing towers, and discloses a degassing tower for producing 5-methyltetrazole, which comprises a tower body, the top of the tower body is communicated with a gas outlet, the bottom of one side of the tower body is communicated with a gas inlet pipe, and the other side of the tower body is provided with a liquid inlet pipe; a tower plate is fixedly mounted in the middle in the tower body; a base is fixedly mounted at the bottom of the tower body. Through the arrangement of the pressing delay switch, the floating block and the movable rod, when absorption liquid is gradually accumulated on the tower plate, the liquid enables the floating block to gradually move upwards, and when the stop block does not extrude the button of the pressing delay switch any more, that is, excessive absorption liquid exists on the tower plate, the air pump and the liquid pump stop running after a period of time, and the absorption liquid is discharged downwards through the through hole of the tower plate; when the tower plate is at a certain liquid level, the stop block re-pressurizes the movable button, and the air pump and the liquid pump are restarted after a certain time, so that the liquid amount is controlled by circulation, the tower plate is prevented from being damaged due to long-time excessive pressure, and the service life of the tower plate is prolonged.

The utility model discloses an air distribution structure of a bag type dust collector, which comprises a dust collector box body, a baffle plate, an air distribution plate and a cavity formed by the air distribution plate, the baffle plate is arranged at an inlet of the dust collector box body, the baffle plate comprises a plurality of inclined plates, and the distance between two adjacent inclined plates is 100-120mm. Four baffle plates are arranged at an inlet of a dust remover box body, the break angles of the baffle plates are sequentially decreased, a plurality of air distribution plates are further arranged, the air distribution plates are arranged to be of T-shaped structures, and meanwhile, the widths of the air distribution plates are sequentially increased. The smoke resistance of the dust remover is reduced, the dust cleaning frequency is reduced, smoke can uniformly penetrate through the filter bag in the dust remover, and the stability of the dust remover is improved.

The embodiment of the invention provides an oil mist absorption device and an external circulation oil system. The oil mist absorption device comprises a shell and a cooling pipe fitting. An oil mist cavity, an oil mist inlet and a breathing opening are formed in the shell, the oil mist inlet can be communicated with an oil tank, and the breathing opening is used for air intake and exhaust; the cooling pipe fitting is arranged in the shell, an oil mist flow channel is formed in the area between the cooling pipe fitting and the shell, and the cooling pipe fitting is used for cooling and condensing the oil mist in the oil mist flow channel. And the oil mist entering the oil mist cavity exchanges heat with the cooling pipe fitting in the shell, so that the condensation speed of the oil mist is greatly increased. Therefore, the oil mist absorption device provided by the embodiment of the invention has the advantages of preventing the oil mist from overflowing, reducing the cleaning frequency of the filter element and being long in service life.

The invention discloses a telescopic dry cleaning rolling brush of a photovoltaic power station, and relates to the technical field of dry cleaning rolling brushes, the telescopic dry cleaning rolling brush comprises a box body, a cleaning groove is formed in the bottom surface of the box body, a brush roller is rotatably arranged in the cleaning groove, a collecting groove is formed in the side wall of the cleaning groove, a fixing plate is fixedly connected to the top of the collecting groove, and the fixing plate is obliquely arranged; a plurality of tooth-shaped scraping rods are evenly and fixedly connected to the end of the fixing plate, and the ends, close to the brush roller, of the tooth-shaped scraping rods are low. According to the photovoltaic module cleaning device, in the process that the brush roller cleans a photovoltaic module, the tooth-shaped scraping rod can remove dust and dirt on the brush roller, so that the brush roller is kept in a clean state all the time, blockage caused by excessive accumulation of the dust and the dirt on the brush roller is prevented, and the cleaning effect of the brush roller is improved; the sharp tooth-shaped edge of the tooth-shaped scraping rod can penetrate into tiny gaps and concave-convex surfaces which are difficult to touch by the brush roller, so that the tooth-shaped scraping rod can scrape stubborn dirt and residues attached to the brush roller, the cleaning effect is ensured, and cleaning is more thorough.

The invention relates to the technical field of environmental protection equipment, in particular to a plastic bottle three-separation recycling machine which comprises a recycling machine main body, a liquid crystal display screen is arranged on the recycling machine main body, a compiler is arranged in the liquid crystal display screen and connected with the external internet, and an input opening is formed in the recycling machine main body. Under the mutual cooperation of the blocking picking mechanism, the bottle body clamping mechanism and the transmission separating mechanism, after the plastic bottles enter the equipment, the bottle bodies, labels and bottle caps of the plastic bottles are automatically separated, the automation degree is high, and the follow-up treatment difficulty is greatly reduced; under the operation of the electric roller, the separated plastic bottle bodies are flattened, so that the equipment can accommodate more plastic bottles, and the cleaning frequency of workers is reduced; after plastic bottles are separated by the equipment, corresponding environmental protection points can be directly received, and the equipment can be used for daily consumption, so that the enthusiasm of the public is improved.

The utility model discloses an intelligent oil recovery device after chip removal, and relates to the technical field of machine tool machining. The intelligent oil liquid recovery device after chip removal comprises an oil liquid recovery device shell arranged below a machine tool, a feeding pipe is connected to the oil liquid recovery device shell, a machine tool recovery hopper is fixedly connected between the feeding pipe and the machine tool, and a filtering supporting pipe is rotationally connected into the oil liquid recovery device shell. According to the intelligent oil liquid recovery device after chip removal, a traditional fixed filter screen is replaced with the cylindrical rotary filter screen, the filter screen is supported through the filter supporting pipe, therefore, in the oil liquid filtering process, the filtering area is large, chips can be automatically discharged through the rotation and gravity action of the filter supporting pipe and the filter screen, the cleaning frequency is low, and the oil liquid recovery efficiency is improved. The device is simple in structure, easy to maintain, capable of automatically discharging and collecting chippings, high in oil filtering speed and capable of meeting use requirements.

The guide roller piece comprises a device base, fixing shells are fixedly connected to the positions, close to the edges of the left side and the right side, of the top of the device base respectively, sliding plates are slidably connected to the inner walls of the two fixing shells respectively, and cleaning mechanisms are arranged on the two sliding plates. According to the guide roller piece provided by the utility model, fluff on the guide roller main body can be effectively cleaned through the cleaning rolling brush at the bottom of the guide roller main body, so that the influence of more fluff attached to the guide roller main body on the final printing and dyeing effect is avoided, and the printing and dyeing effect of the device is improved; the driving motor drives the guide roller body to rotate and also drives the cleaning rolling brush to rotate along with the guide roller body, the contact area of the rotating cleaning rolling brush and the guide roller body is increased, the cleaning effect on the guide roller body is improved, extra power is not involved in the process, the device is more environmentally friendly, and the service life of the device is prolonged. And the detachable cleaning rolling brush is convenient for the user to clean the cleaning rolling brush in the later period.

The invention discloses a crank guide rod transmission pneumatic needle suction type small-particle-size bean sprout seed automatic sowing device which comprises a vacuum air chamber, a swing air cylinder, a seed conveying pipe, a guide rod, a fixing frame, a pneumatic vibration seed disc and a seedling disc. The device adapts to seeds of different sizes, thicknesses and shapes, and adsorption failure or seed damage is avoided; according to the shape characteristics of irregular leaf-shaped seeds, the specific suction needle caliber, hole shape and air flow distribution are designed, the adsorption efficiency is improved, and it is ensured that the seeds can be stably adsorbed; an airflow channel is optimally designed by virtue of airflow dynamics, so that uniform acting force on the leaf-shaped seeds in the adsorption process is ensured, falling or dislocation of the seeds caused by non-uniform adsorption positions is avoided, the seeding requirements of seeds of different types, sizes and shapes are met, and the universality and the service life of equipment are improved.

The invention discloses a plate cutting machine arm with a visual positioning function. The plate cutting machine arm comprises a mechanical arm body and a protection mechanism. A laser cutting head and a visual positioning camera are mounted at the end of the mechanical arm; the protection mechanism comprises a cylinder, a separation pipe and an air inlet pipe, the cylinder is arranged at the end of the mechanical arm, the lower end of the cylinder is of an opening structure, the air inlet pipe is arranged at an air inlet in the outer arc face of the cylinder, the separation pipe is arranged on the top wall of the cylinder, and a visual positioning camera is installed at the lower end of the separation pipe. A rotatable air curtain is formed on the outer edge of the visual positioning camera, the influence of chippings in the plate cutting process on the visual positioning camera is effectively prevented, the accuracy of visual positioning is guaranteed, the work of the plate cutting machine arm is more accurate, dust on the surface of the visual positioning camera is automatically cleaned through compressed air, and the working efficiency is improved. And the manual cleaning frequency of the visual positioning component of the plate cutting machine arm is reduced.

The utility model discloses a polishing device for a ceramic scraper, which belongs to the technical field of scraper processing and comprises a mounting table, a Y-axis transmission component, a Z-axis transmission component and an X-axis transmission component, the Y-axis transmission component is assembled on the upper end face of the mounting table, and the Z-axis transmission component is assembled on one side of the Y-axis transmission component; the X-axis transmission assembly is assembled on the upper end face of the mounting table and located at the lower ends of the Y-axis transmission assembly and the Z-axis transmission assembly, two supporting rods are assembled on one side of the upper end face of the mounting table and arranged in parallel, a side mounting block is slidably arranged between the two supporting rods, and a fan is assembled on one side of the side mounting block. A locking knob is arranged on one side of the side mounting block in a penetrating mode, and one end of the locking knob abuts against the adjacent supporting rod. The polishing device for the ceramic scraper has the advantages that multi-axis all-directional control is achieved, machining efficiency is improved, multi-axis all-directional control is achieved, machining requirements of complex curved surfaces of the ceramic scraper can be met more flexibly, and machining comprehensiveness is improved.

A pulse feeding valve comprises a valve body, a valve element assembly and an air cylinder assembly. The valve body is of a sealing structure with openings in the upper end and the lower end, and a valve element assembly is arranged in the opening in the lower end of the valve body and is a telescopic component. An air passage is arranged at the lower end opening of the valve body; the air channel is connected to the bottom of the valve element assembly. The cylinder assembly is arranged on the outer side wall of the valve body; when the valve element assembly moves upwards, the opening in the lower end of the valve body is a discharging opening. The valve element of the pulse feeding valve moves up and down for feeding, material blockage caused by poor flowability is avoided, meanwhile, materials are fed in a sealed space, the materials are not exposed in air, the materials are prevented from being lost and polluted, the flowability of the materials is guaranteed during feeding, and the materials are convenient to clean. The feeding valve is reliable in structure and high in sealing performance in the feeding process, the dustproof effect of the feeding port is good, materials cannot leak in the charging process, and waste and loss of the materials are reduced.

The utility model discloses a total moisture testing system which comprises a transfer module, a division module, a drying oven weighing module, a rejected sample recycling module, a sample bottle receiving, sending and storing module and a control assembly, the division module is used for dividing a sample in a sample bottle into a test sample and a prepared sample, loading the test sample into a tray, and loading the prepared sample into a bottle; the oven weighing module is used for temporarily storing a sample tray and drying and weighing the sample tray filled with a test sample, and the test sample subjected to constant weight treatment is changed into a rejected sample; the discarded sample recovery module is used for recovering discarded samples and cleaning sample plates; the sample bottle receiving, sending and storing module is used for receiving, sending and storing sample bottles filled with original samples and prepared samples; the transfer module is used for transferring the sample bottles and the sample trays among the stations; the control assembly is used for controlling all the modules to work. The total moisture testing system disclosed by the utility model has the advantages of high automation degree, high testing efficiency, convenience in sample preparation and high testing accuracy.

The utility model discloses a filtering device for preparing electronic grade phosphorus oxychloride, which comprises a filtering device, a plugging assembly and a material conveying assembly, the filtering device comprises a filtering device body, a first filter screen and a second filter screen are arranged in the filtering device body, the first filter screen is arranged above the second filter screen, and the plugging assembly is arranged above the first filter screen. A pair of mounting holes is formed in the right side wall of the filtering device body, and the first filtering net and the second filtering net are mounted in the filtering device body through the pair of mounting holes; the plugging assembly comprises a pair of sliding connection grooves, and the pair of sliding connection grooves are formed in the upper side walls and the lower side walls of the pair of mounting holes. According to the utility model, phosphorus oxychloride is homogenized through the material conveying assembly and then conveyed into the filtering device, and the phosphorus oxychloride is filtered through the filter screen, so that impurities in the phosphorus oxychloride are removed, the impurities entering the distillation kettle are relatively small, the cleaning frequency of the distillation kettle is reduced, and the preparation efficiency of the distillation kettle is improved.

The dam wall of a dam body is of a multi-layer composite structure and comprises a structural layer set, an anti-fouling rubber layer and a hydrophobic coating from inside to outside, and the structural layer set providing structural strength and deformation toughness is formed by bonding a plurality of rubber layers and canvas layers which are arranged in a crossing rule mode; the surface of the anti-fouling rubber layer for improving the anti-fouling function is compact and free of pores; and the hydrophobic coating is coated on the outer surface of the anti-fouling rubber layer. Due to the multi-layer structure and the surface design, attachment of dirt and microorganisms is remarkably reduced, the cleaning requirement and frequency are reduced, and the long-term maintenance cost is reduced.

The present invention discloses an electrochemical descaling device for circulating water, mainly related to the field of water treatment. It includes a descaling box, a water inlet pipe and a water outlet pipe are provided on the descaling box, a slag discharge pipe is provided at the bottom of the descaling box, a plurality of cathode plates are distributed along a vertical array inside the descaling box, an anode plate is provided between adjacent cathode plates, and a through port is provided on the cathode plate and the anode plate, a cavity is provided inside the cathode plate, a movable plate is connected along a vertical sliding connection inside the cavity, a plurality of deposition holes are symmetrically provided on the upper and lower sides of the cathode plate, a plurality of deposition columns are symmetrically provided on the upper and lower sides of the movable plate, an outer shaft body is provided in the descaling box for driving the plurality of movable plates to slide up and down at the same time, and a scraper is symmetrically connected to the upper and lower sides of the cathode plate. The beneficial effect of the present invention is that it can solve the technical problem that the cleaning frequency of the existing cathode structure is high or the cleaning is difficult, reduce the cleaning frequency, make the cleaning more convenient and thorough, and ensure the electrochemical descaling effect after long-term use.

The utility model relates to the field of generator neutral point grounding resistor cabinets, and discloses a generator neutral point grounding resistor cabinet convenient for dust prevention, which comprises a cabinet body, air inlet holes are arranged on two sides of the cabinet body, a plurality of louver boards are arranged on the two air inlet holes, and cleaning mechanisms are arranged on the inner side of the cabinet body and positioned at the two air inlet holes. The cleaning mechanism comprises a rectangular frame which is fixedly connected to the inner side of the cabinet body and located at the air inlet hole, limiting rods are fixedly connected between the two ends of the inner side of the rectangular frame, the circumferential surfaces of the two limiting rods are slidably sleeved with the same cleaning plate, the two ends of the cleaning plate are provided with round holes matched with the limiting rods, and a brush is arranged on the side, away from the air inlet hole, of the cleaning plate. According to the utility model, the technical effects that the filter screen at the air inlet hole has an automatic cleaning function and is matched with the rotating draft fan to blow out dust at the cleaning part to the outside, so that the cleaning efficiency is improved, the cleaning frequency of a user is reduced, and the practicability of the equipment is improved are realized.

The utility model provides multi-stage filtering equipment for tail gas treating fluid, and belongs to the technical field of tail gas treating fluid. The tail gas treatment liquid multi-stage filtering equipment comprises a shell, the shell comprises a shell body, a top end opening is formed in the top of the shell body, a top cover is arranged at the top of the top end opening, a feeding port is formed in one side of the top end of the shell body, a feeding assembly is fixedly installed on one side of the feeding port, a discharging port is formed in the bottom of the shell body, and a discharging assembly is fixedly installed on one side of the discharging port. A discharging assembly is fixedly installed at the bottom of the discharging opening, a filter piece inserting groove is formed in one side of the middle of the shell, two filter piece assemblies are arranged in the filter piece inserting groove, the top cover comprises a cover body and a filter screen, the cross section of the filter screen is of a W-shaped structure, and a fixing ring is fixedly installed on the outer side of the filter screen. According to the tail gas treatment liquid filtering device, tail gas treatment liquid can be subjected to multi-stage filtering, the filtering capacity can be rapidly recovered, and the tail gas treatment liquid filtering device has high practical value.

The utility model discloses a household self-cleaning system window which comprises a window frame, glass is embedded in the window frame, an anti-fouling membrane set is fixedly arranged on the surface of the glass, a cavity is formed in the bottom of one side of the window frame, a liquid storage box is fixedly arranged in the cavity, a micro water pump is fixedly installed on the top face of the liquid storage box, and an anti-fouling membrane set is fixedly arranged on the surface of the micro water pump. A spraying mechanism is arranged at the output end of the micro water pump in a penetrating mode, and a motor groove is formed in the side, away from the liquid storage box, of the window frame. According to the household self-cleaning system window, through the arrangement of the spraying mechanism and the self-cleaning mechanism, cleaning liquid is injected into a liquid storage box, a micro water pump is turned on, the cleaning liquid is pumped out and conveyed into a spraying head through a liquid conveying pipe, then the cleaning liquid is sprayed on glass, a servo motor communicates with an external power source, and a lifting lead screw is driven to rotate; and the sliding plate drives the self-cleaning sponge to reciprocate and lift on the glass, so that the effect of cleaning the system window glass is achieved, and attractiveness and light transmittance are kept.

The utility model discloses a recovery device for an oil rail pressure testing machine, which comprises a recovery cover, an oil leakage pipe, a filter screen, an electric heating wire and an oil receiving tank, an inlet of the oil leakage pipe is connected to the bottom of the recovery cover; the filter screen is mounted at an inlet of the oil leakage pipe; the electric heating wire is mounted in the filter screen; the engine oil recovery device has the advantages that engine oil is guided to the oil leakage pipe through the inner wall of the recovery cover and then flows into the oil receiving tank, a complete recovery path is formed, cleaning frequency is reduced, and cost is saved.

The utility model discloses a dust and crust inhibitor automatic feeding stirring anti -precipitation device relates to sewage treatment technical field, including the stirring jar, the support is fixedly arranged on the stirring jar top, the support top is fixedly arranged with the storage jar, the storage jar bottom is fixedly arranged with the discharge gate, the discharge gate outer side wall is fixedly arranged with the valve body, the discharge gate bottom is fixedly arranged with the metering pump, and the metering pump output is fixedly arranged with the buffer cavity. The utility model provides through the storage jar can accurate control guarantee the smoothness of conveying, adopts the quantitative feeding module of metering pump and buffer cavity combination, and real -time monitoring is combined to pressure sensor, and the processing demand of bulk cargo yard sewage is accurately matched, and the waste of reagent is reduced, and the operating cost is reduced.