306 results about "Double filtration" patented technology

The present application relates to the technical field of vehicle cleaning equipment, in particular to a transport vehicle cleaning equipment, which comprises a cleaning room and a ground platform, the ground platform is arranged below the cleaning room, the ground platform comprises a water pool, a collecting pool, a plurality of units arranged side by side and a motor, the collecting pool is arranged in the water pool, the unit comprises a collecting hopper, a supporting plate, an electromagnet, a transmission shaft, a first sleeve and a first annular filter screen, double filtration is realized through the first annular filter screen and the second annular filter screen, so that the impurities can be prevented from entering the sewer pipe to cause pipe blockage, the water flow and the impurities are branched to facilitate processing, in addition, the unit has a filter screen cleaning function, after the vehicle is cleaned, the first annular filter screen and the second annular filter screen can clean the impurities blocked by the filter screen, so that the filter screen can be prevented from being blocked by the impurities and being disabled.

The invention discloses an anti-abrasion structure for a piston ring of a reciprocating gas compressor, belongs to the technical field of gas compressors, and aims to solve the technical problems that the piston ring of the existing reciprocating gas compressor is easy to abrade, uneven in lubrication, poor in air inlet filtering effect and insufficient in transmission stability. According to the technical scheme, the air compressor is characterized by comprising an air storage tank, a protective shell, a mounting sleeve, a sealing plate, a connector, a rotating circular plate, a driven shaft, a compression assembly, a driving assembly, an air inlet cylinder and a filtering assembly and further comprising an air inlet connector and a connecting pipe; an L-shaped plate and a piston plate are arranged on the side portion of the piston ring and matched with an oil groove and a permeation hole to achieve precise lubrication, the filtering assembly adopts a conical filtering net and a circular filtering cylinder to conduct double filtering and is convenient to disassemble, assemble and clean, the driving assembly is matched with a synchronizing wheel through a servo motor for transmission to guarantee stable operation, and compressed gas is fed into a gas storage tank through a gas inlet connector after being gathered through a connecting pipe.

The utility model provides a kind of air purification drying device for bottle blowing, it is related to bottle blowing processing technical field, and it includes: box body;The box body is fixed on bottle blowing equipment, and there is an exhaust pipe welded on the right side of box body, and the exhaust pipe is connected with bottle blowing gas supply pipeline, and filter screen seat is inserted on the box body.The device adopts filter screen and filter box double filtration structure, gas is first intercepted large particle impurities by filter screen, and then passes through filter box filled with filter cotton and activated carbon.Filter cotton can further filter fine particles, and activated carbon can effectively remove odour, harmful gas and other gases by virtue of strong adsorption capacity, and the combination of the two greatly improves the depth and precision of air purification;The base block at the top end of the inner wall of box body is connected with cleaning brush by spring rod, and when pulling filter screen seat, cleaning brush can automatically clean the sundries on filter screen, and spring rod can ensure that cleaning brush is always in close contact with filter screen, even if wear, it can also automatically follow up, reduce manual cleaning frequency, reduce maintenance cost and workload.

The utility model provides a waste liquid impurity removing and filtering device which comprises a reaction tank, a filtering box, a liquid collecting box and a scraping assembly, the filtering box is arranged in the reaction tank, an opening extending out of the reaction tank is formed in the filtering box, the liquid collecting box is movably arranged in the opening, a bearing part is arranged on the filtering box, and a filtering plate is movably installed on the bearing part; the filter box is provided with an accommodating groove extending to the outside of the reaction tank and is provided with a sieving plate, and waste liquid positioned at the top of the filter box respectively penetrates through the filter plate and the sieving plate and falls into the liquid collecting box, so that the waste liquid positioned in the liquid collecting box is subjected to double filtration, and impurities in the waste liquid are removed; the scraping assembly is located between the filtering plate and the screening plate, a sliding base in the scraping assembly drives a scraping plate to move in the length direction of a traction rod, the scraping plate scrapes impurities on the screening plate, the situation that meshes of the screening plate are blocked by the impurities is avoided, double filtration of waste liquid can be achieved through the filtering plate and the screening plate, and the filtering efficiency is improved. The filtering efficiency is improved.

The utility model relates to the technical field of wastewater treatment devices, and discloses a wastewater treatment device for feldspar powder production, which comprises a control platform, a lower treatment cylinder is arranged on the rear side of the control platform, an upper treatment cylinder is fixedly mounted at the top of the lower treatment cylinder, and a top cover is arranged at the top of the upper treatment cylinder. A four-corner support is fixedly mounted at the top of the top cover, a feeding hopper is fixedly mounted at the top of the four-corner support, and a conveying pipe is arranged at the bottom of the feeding hopper in a communicating mode. By arranging the large arc-shaped groove and the round collecting box, solid particles can be collected in a centralized mode, the solid particles can be easily taken out by pulling a U-shaped handle in a matched mode, cleaning and maintaining are convenient, a water guide plate is connected in a matched mode, liquid subjected to preliminary filtering smoothly flows into the water collecting barrel, meanwhile, a first filtering layer and a second filtering layer in the water collecting barrel form double filtering, and the filtering effect is good. The discharged water is ensured to be clear and pure, and the effects of improving the operation convenience and improving the wastewater treatment quality are achieved.

The utility model discloses an air filter applied to a dust-free laboratory, relates to the technical field of air filtration of the dust-free laboratory, and aims to solve the problems that the conventional air filter has defects in dual gas filtration and purification and the overall filtration effect needs to be improved. A filter element is installed in the middle of the interior of the filter box, an adsorption box is fixedly connected to the side surface of the filter box, an exhaust pipe is fixedly connected to the side surface of the filter box, the air outlet end of the exhaust pipe communicates with the space of one end of the interior of the adsorption box, and a ceramic base is fixedly installed on the inner wall of the adsorption box; a discharge electrode and a dust collection electrode are fixedly installed on the symmetrical inner walls of the ceramic base correspondingly, and a plurality of through grooves corresponding in position are formed in the lower surface of the ceramic base and the lower surface of the adsorption box. The effects of double filtering operation and strong filtering effect are achieved.

The utility model provides a safety type gas water heater heat exchanger which comprises a water heater body and a heat exchanger, the heat exchanger is installed in the water heater body, a first water inlet pipe is arranged at the bottom of the heat exchanger, a filtering assembly is arranged at one end of the heat exchanger, and a second water inlet pipe is arranged at the bottom of the water heater body. The second water inlet pipe is connected with the filtering assembly through a supercharger; a first water outlet pipe is arranged on one side of the heat exchanger and connected with a second water outlet pipe at the bottom of the water heater body through a connecting pipe. A pressure sensor is arranged on the first water outlet pipe and electrically connected with a controller arranged on one side of the water heater body. According to the heat exchanger, the filtering assembly is arranged at one end of the first water outlet pipe, cold water needs to pass through the heat exchanger firstly and then enters the heat exchanger, double filtration of the cold water is achieved through the filtering assembly, various impurities in water can be intercepted, the chance that corrosive substances make contact with the heat exchanger is reduced, and the risk that the heat exchanger is corroded is reduced.

The utility model discloses a steam pipeline drainage device for heat engineering, including the drainage branch pipe of being connected on steam pipeline, set up the drainage valve and the storage bucket for storing condensate water on the drainage branch pipe, be provided with filter assembly on the drainage branch pipe, and filter assembly distributes the both sides of drainage valve, and filter assembly can detachable setting is in the drainage pipe, and the water outlet of drainage valve is provided with the connecting pipe, and the connecting pipe with storage bucket is detachable connection, and the translation support mechanism is established to the below of storage bucket, and the translation support mechanism is provided with two placement sites, and each placement site can place a storage bucket. The scheme is through setting detachable filter assembly in the drainage branch pipe, realizes double filtration, prevents the impurity and blocks the drainage valve. The telescopic design of connecting pipe cooperates with the translation support mechanism, makes the storage barrel change convenient, need not stop, guarantees steam pipeline continuous operation, improves work efficiency, and storage barrel collects condensate, avoids water resource and heat waste.

The utility model discloses a magnetic oil filter which comprises a shell, a filter cover mechanism forming an assembly type cover body structure, a pre-screening mechanism used for pre-screening magnetic oil and a filter element mechanism used for forming a double-filtering structure, and the upper end of the shell is provided with an opening structure. The filter cover mechanism is assembled at an opening in the upper end of the shell, the pre-screening mechanism is arranged on the inner side of the filter cover mechanism, and the filter element mechanism is arranged in the shell. The filter is convenient to disassemble, assemble and maintain while the filter element is replaced, the pre-screening mechanism is arranged, metal impurities in oil entering the filter can be preliminarily pre-screened, abrasion and blockage of the filter element caused by accumulation of the metal impurities are avoided, the service life of the filter element is prolonged, and the service cycle of the filter element is prolonged; the magnetic oil can be doubly filtered, the impurity removal rate is high, and the filtering effect is good.

The invention provides a superconducting magnet self-cleaning dipping device and dipping method, and relates to the technical field of superconducting magnet dipping treatment, the superconducting magnet self-cleaning dipping device comprises a dipping cylinder, a glue inlet container, a filling bag, a mixing cylinder, a stirring paddle, a communicating pipe, a vacuum pump, a pump body, a filter screen, a spray header, an infrared heating device, various windows and other parts, and corresponding dipping operation processes. The filling bags are arranged in the filling gaps, all the components are connected through the communicating pipes to form a circulating system, a circulating impurity removal mode is adopted, and measures such as window observation, infrared heating, stirring and mixing, double filtration and vacuum breaking of a vacuum pump are matched; the effects of reducing the usage amount of epoxy resin and the subsequent cleaning workload, efficiently removing impurities and bubbles in the superconducting magnet coil, accurately judging the impregnation quality and making the epoxy resin in the coil denser are achieved, meanwhile, it is guaranteed that the impregnation environment is clean, colloid is evenly and purely mixed, and finally the impregnation quality and the use performance of the superconducting magnet are improved.

The utility model relates to a kind of multi-row vent hole pressure relief type high-temperature cooking pot cover, including: bottom cover, the central portion of which is provided with guide hole, the inside of guide hole is fixedly provided with installation pipe, the inside bottom end of installation pipe is provided with bearing platform, the top of bearing platform is provided with supporting spring, the center of supporting spring is provided with connecting rod;The inside bottom end of bottom cover is slidably provided with baffle, baffle is fixedly connected with connecting rod, and through slot hole is opened in the outer circumferential of baffle.The utility model relates to the technical field of pressure cooker cover.This kind of multi-row vent hole pressure relief type high-temperature cooking pot cover, baffle dynamic adjustment gap is combined with the double filtration of protruding ring and spiral guide ring, can reduce the possibility that food debris blocks pressure relief pipe, while multiple pressure relief pipe design ensures that high-pressure steam is released in segments quickly, avoid the risk of pot explosion caused by the sudden increase of pressure in pot;Stable pressure chamber and spiral vent hole make the discharged steam cooling and diffusion, significantly reduce the probability of user scald.

The utility model discloses a biological filter tower device with a deodorization function, which comprises a water collecting tank, the top of the water collecting tank is fixedly connected with a shell, the inner wall of the top of the shell is fixedly connected with a spraying frame, the inner walls of the two sides of the shell are respectively provided with a guide rail, a sliding frame is movably connected between the guide rails, a filler is arranged in the sliding frame, and the filler is arranged in the sliding frame. Clamping openings are formed in the inner walls of the two sides of the shell correspondingly, two second avoiding grooves are formed in the outer wall of one side of the sliding frame, clamping frames are movably connected into the two second avoiding grooves correspondingly, the clamping frames are connected with the clamping openings in a clamped mode, the outer sides of the clamping frames are sleeved with second springs, and the two ends of the second springs are fixed to the clamping frames and the sliding frame correspondingly; and a pull rope is mounted at one end of the clamping frame. According to the sewage treatment device, not only can the filler be conveniently replaced by a worker, but also sewage can be doubly filtered through the matched use of the filler and the filter cotton, and the pull rope can be guided through the rotating wheel.

The high-lift horizontal submersible pump comprises a protective shell, the end, close to a water inlet of a submersible pump body, of the protective shell is fixedly connected with a positioning cylinder through a bolt, the end, away from the protective shell, of the positioning cylinder is fixedly connected with a filtering cover, and the inner side face of the positioning cylinder is fixedly connected with a filtering plate; embedding grooves are correspondingly formed in the positions, opposite to the filter plates, of the surface of the filter cover, the protective shell is fixedly connected with a main vertical plate through a fixing ring, the main vertical plate is fixedly connected with a base through a main transverse plate, and fixing blocks are symmetrically connected to the two sides of the base. According to the high-lift horizontal submersible pump, through cooperation of the filter cover, the filter plate, the positioning cylinder, the fixing ring and the base, the water inlet of the high-lift horizontal submersible pump can be provided with a double-filter structure, the double-filter structure can be conveniently assembled, disassembled and cleaned, and the probability that the high-lift horizontal submersible pump breaks down is reduced.

The utility model provides a multifunctional electric energy quality monitoring cabinet, which relates to the technical field of electric power equipment and comprises a cabinet body, a plurality of groups of vent holes are arranged on one side of the outer wall of the cabinet body, a partition plate is fixedly connected to the inner surface wall of the cabinet body, a coarse filter screen is fixedly mounted on the inner surface wall of the cabinet body, and a fine filter screen is fixedly mounted on the inner surface wall of the cabinet body. The inner surface wall of the cabinet body is fixedly connected with two fixing plates. According to the utility model, under the interaction of all the components of the device, gas entering the cabinet can be subjected to double filtration treatment, harmful substances such as dust and impurities are prevented from entering the cabinet, the cleanliness of electrical elements is guaranteed, the operation performance of equipment is improved, the service life of the equipment is prolonged, and meanwhile, the cleaning mechanism of the filter components is convenient to clean. Good filtering performance can be always kept in long-term use, and a high-quality operation environment can be continuously created for equipment in the cabinet.

The utility model discloses a dust collecting filter bag convenient to dismount belongs to dust collecting filter bag field, including filter bag, the inside of filter bag is inserted with filter mechanism, the upper surface fixedly connected with connecting sleeve of filter bag, and the inside of connecting sleeve is penetrated with connecting rope, through the cooperation of above -mentioned each device, the utility model simple structure, convenient operation, through the filter mechanism of setting, when supporting in the filter bag inside with A support ring and B support ring, fast installation of plug -in rod and filter screen, the downtime of equipment can be reduced significantly to fast dismounting filter bag, and the maintenance speed can be accelerated to simplify the dismounting process, so that the maintenance team can complete more work in shorter time, after the installation of filter mechanism is completed, connecting rope, fixed buckle and fixed clamping sleeve are fixed in the filter bag, and when using, through filter screen and filter bag reach the effect of double filtration, improve the filtration effect, and can complete dismounting fast when installing, improve the convenience.

The utility model relates to galvanization production technical field discloses a kind of sewage evaporation mechanism of continuous galvanizing production line, including base and evaporating tank, the top of the base is fixed with evaporating tank.This sewage evaporation mechanism of continuous galvanizing production line when using, after main pipe is connected into external sewage introduction pipe, sewage can be introduced by main pipe, by using the inside filter screen of installation ring one, some particle impurities contained in sewage can be filtered and removed, reduce the impurity content in sewage, the sewage after pre-filtering is introduced into mechanism by water inlet pipe, when the inside filter screen of installation ring one needs cleaning, valve four and valve three are opened first, then valve one and valve two are closed, the sewage introduced into the inside of main pipe is introduced into the inside of installation ring two by branch pipe one and is pre-filtered, by setting double filtration component, it can be filtered without stopping, solve the problem that it is inconvenient to pre-filter sewage.

The utility model discloses a liquid reaction tank with a pipe blocking prevention function, which relates to the technical field of liquid reaction tanks and comprises a tank body, a rack is arranged in the middle of the top end of the tank body, a speed reducer is arranged at the top end of the rack, a driving motor is arranged at the top end of the speed reducer, an output shaft of the driving motor is connected with the speed reducer, and a connecting rod extends out of the middle of the bottom end of the speed reducer. The connecting rod extends into the inner top surface of the tank body and is provided with a shaft seal on the top surface of the rack, two solution feeding pipelines are symmetrically arranged on two sides of the rack, and an endoscope is mounted on one side of the outer wall of the tank body; through the reasonable layout of the tank body and each part, the stable and compact structure of the equipment is ensured; through cooperation of the driving motor, the speed reducer, the rotating shaft and the stirring blades, the mixing efficiency of the solution and the adsorbent is improved; by means of double filtration of the filter screen plate and the Y-shaped filter pipe, fibrous materials are effectively prevented from blocking the pipeline; and finally, the problem that the pipeline is easy to block due to fibrous materials is solved.

A filter for a medicine dissolving device comprises a filter body, an outer conical connector and an inner conical connector, one side of the filter body is connected with the outer conical connector, the other side of the filter body is connected with the inner conical connector, and the filter is characterized in that the filter body is composed of a barrel, a first movable cover, a second movable cover and a filter assembly, threads are arranged on the outer walls of ports at the two ends of the cylinder body, one end of the cylinder body is in threaded connection with a first movable cover, the other end of the cylinder body is in threaded connection with a second movable cover, and a filtering assembly is installed in the cylinder body. The filter is assembled in a threaded connection mode, the threaded connection mode is more stable compared with clamping connection, and in addition, the sealing ring is additionally arranged to enhance the overall sealing performance of the filter.

This utility model provides a novel columnar paint mist collector, including a shell. Multiple filter covers are fixedly installed on the inner wall of the shell. A first inner core is fixedly installed on the inner wall of each filter cover. A guide filter plate is fixedly installed on the outer wall of each filter cover. Multiple second inner cores are fixedly installed on the inner wall of each guide filter plate. Two full-coverage filter plates are also fitted onto the outer wall of each filter cover. Multiple third inner cores are fixedly installed on the inner wall of each full-coverage filter plate. The advantages of this utility model are: the guide filter plates reduce the leakage of air from the outside of the filter covers when they are misaligned; the full-coverage filter plates increase the overall filtration effect, thus adding a double filtration effect while filtering the filter cover at that position, thereby maintaining multiple filtration effects on the air while reducing the leakage of unfiltered air.

The utility model discloses a mobile electrostatic range hood air suction cover, which relates to the technical field of flue gas purification, and comprises an air suction cover body, an air suction pipe, a flange connecting piece, a first filter plate and a second filter plate, chutes are arranged on two side walls of the air suction cover body, and the side surface of the second filter plate is connected with connecting rods of which the number corresponds to that of the chutes. The connecting rod is slidably arranged in the sliding groove, and the extending end of the connecting rod penetrates through the side wall of the air suction cover body to be connected with a vibration unit. A double filtering system is adopted, the second filtering plate further filters small particles in flue gas, the purification effect is improved, the automatic ash removal function of the second filtering plate is achieved through the design of the external vibration unit and the connecting rod, the second filtering plate vibrates along with vertical movement of the air suction cover body, and the dust removal effect of the air suction cover is improved. Therefore, the adsorbed particulate matters are effectively removed, the filtering effect is maintained, the maintenance cost and the workload are reduced, and the continuous and efficient work of the air suction cover is also ensured.

The utility model discloses filtering equipment for a polyurethane curing agent, and relates to the technical field of curing agent processing. The polyurethane curing agent filtering device comprises a filtering box, a feeding hopper is fixedly installed in the filtering box, the feeding hopper is located at the position close to an opening in the top of the filtering box, and the feeding hopper is used for conveying a polyurethane curing agent into the filtering box; the device further comprises a first filtering assembly, and the first filtering assembly is used for preliminarily filtering the polyurethane curing agent input into the filtering box. According to the filtering equipment disclosed by the utility model, through the design of the double filtering components, the high-efficiency fine filtering of a polyurethane curing agent is realized; an air cylinder, a piston block, a pipe clamp and an abutting rod are used in cooperation, intelligent extrusion filtering of the polyurethane curing agent is achieved, and the filtering effect is improved; meanwhile, the detachable design of the filter box is matched with the arrangement of the movable door, so that a user can conveniently clean impurities filtered out of the equipment, and the overall design has remarkable practicability and innovativeness.

The utility model discloses a multi-filtering type drying device, which relates to the technical field of drying equipment and comprises a tank body, a sealing cover, an air inlet pipe, a filtering frame, an exhaust pipe and a liquid discharge pipe. The tank body provides a drying and filtering space for materials, the sealing cover is used for providing a sealing environment for the tank body, external pollutants are prevented from entering the tank body during working, the filtering frame provides a filtering and containing part for the materials in the tank body, the first filtering frame and the second filtering frame in the filtering frame can achieve double filtering treatment on the materials, and the filtering effect is good. The gas inlet pipe can be used as a gas inlet channel for filter pressing operation or suction filtration operation, the suction pipe can be used as a suction channel for suction filtration operation and can also be used as an exhaust channel for filter pressing operation, and the liquid discharge pipe is used for discharging waste liquid in the tank body; according to the utility model, the material can be subjected to filter pressing or suction filtration drying treatment, so that multiple drying treatment on the material is realized, and the filtering and drying treatment effect on the material can be effectively improved.

The utility model discloses fire-fighting facility maintenance equipment, which belongs to the technical field of fire-fighting facilities and comprises a bottom plate, a protection box arranged on one side of the upper end of the bottom plate, a cleaning mechanism arranged on one side of the protection box, a partition plate arranged at the lower end in the protection box, a dust removal component arranged at the lower end of the partition plate and a clamping mechanism arranged at the upper end of the partition plate. According to the utility model, the filter assembly is arranged, one side of the water outlet pipe is connected with the filter box, and the filter screen and the activated carbon plate in the filter box perform double filtration on sewage, so that impurities and dirt in the sewage can be removed, the filtered water is discharged into the water tank of the cleaning mechanism through the connecting water pipe to complete the recycling of the water, and the waste of resources is reduced; the protection assembly is arranged, the rotating motor is started to drive the rotating shaft to rotate, so that the baffle plate rotates, the baffle plate can be conveniently rotated out of the containing groove to protect and shield the electric fan, pollution damage caused by sewage to the electric fan is avoided, and the structure is simple.

The utility model relates to a two-in-one composite filter element which comprises a filter element shell, a central pipe, an RO (Reverse Osmosis) membrane and an upper cover assembly, the RO membrane is placed in the filter element shell, a gap is formed between the side wall of the RO membrane and the inner wall of the filter element shell to form a water inlet flow channel, the central pipe is inserted into the RO membrane, a central water inlet hole is formed in the central pipe, and water filtered by the RO membrane enters the central pipe through the central water inlet hole; the upper end cover is installed on the upper portion of the RO membrane, a pure water inlet and a waste water inlet hole are formed in the upper end cover, the pure water inlet is communicated with the water outlet of the central pipe, the waste water inlet hole is communicated with the upper portion of the RO membrane, and the second filtering piece is installed on the upper end cover; a raw water inlet runner, a waste water outlet runner and a pure water outlet runner are arranged on the upper cover assembly; the upper cover assembly covers the filter element shell, the raw water inlet flow channel is communicated with the water inlet flow channel, the waste water outlet flow channel is communicated with the waste water inlet hole, and the pure water outlet flow channel is communicated with water filtered by the second filter piece. The filter has the advantages of double filtering pieces, good filtering effect and compact structure.

This utility model relates to the field of water purification technology, and in particular to water purification and filtration equipment for water conservancy projects. It includes a device body comprising an upper body and a lower body fixedly connected vertically, with a filter screen connected between them. A top cover assembly is provided at the upper end of the upper body. Several slots are provided on both sides of the interior of the upper body, and detachable filter plates are arranged between these slots. A rotatable dynamic filter assembly is provided inside the lower body, with one end of the dynamic filter assembly connected to a driving component. The driving component drives the dynamic filter assembly to rotate. A downwardly extending protrusion is fixedly connected to one end of the filter screen. This utility model employs a dual filtration method combining filter plates and a dynamic filter assembly. Compared to traditional single-media filter structures, this method effectively removes impurities and pollutants from water, significantly improving the removal rate of suspended solids and the adsorption efficiency of chemical pollutants.

The utility model relates to the technical field of magnetic material surface treatment, in particular to automatic spraying equipment for magnetic material surface treatment. The automatic spraying equipment for magnetic material surface treatment comprises a machine cabinet, an opening and closing door, a mounting table, a rotating motor, a rotating plate, a shaft seat, a shaft rod, a placing frame, a ventilation pipe, an exhaust pipe, a spraying assembly and a filtering assembly, the opening and closing door is installed on the front side of the machine cabinet, and the mounting table is installed at the bottom in the machine cabinet; a rotating motor is mounted on the rear side of the top of the mounting table, a rotating plate is connected to an output shaft of the rotating motor, and shaft rods are rotationally connected to the front and rear sides of the rotating plate through shaft seats. The filtering assembly in the ventilation pipe sucks gas in the cabinet through the second draught fan, impurities and particles in the gas are effectively removed through double filtration of filtering cotton and activated carbon, then the gas is exhausted through the exhaust pipe, particles generated by spraying are prevented from being diffused outwards, harm to the working environment and operators is reduced, and the requirement for environmental protection is met.

The utility model discloses a secondary steam condenser which comprises a condenser body, the front end of the condenser body is fixedly connected with an air inlet pipe, the rear end of the condenser body is fixedly connected with a drainage pipe, the end of the air inlet pipe is movably connected with a gas filtering assembly, and the gas filtering assembly comprises a processing box. A connecting pipe is fixedly connected to the front end of the treatment box, two sets of limiting insertion openings are formed in the side face of the treatment box, and a first filter plate and a second filter plate are inserted into the two sets of limiting insertion openings correspondingly. The gas filtering assembly is installed at the front end of the gas inlet pipe, solid impurities in steam are doubly filtered through the first filtering plate and the second filtering plate which are arranged in the gas filtering assembly and are different in mesh aperture, and the quality of gas entering the condenser body is guaranteed; the filtering structure for filtering and the treatment box can be rapidly disassembled and assembled, the sealing performance is good after installation, and use is convenient.

The utility model relates to a waste gas filter of a die-casting machine, which belongs to the field of waste gas filtration and comprises a filter box, a gas inlet pipe fixedly connected to the left side of the filter box and a gas outlet pipe fixedly connected to the right side of the filter box, a partition plate is fixedly connected between the inner top wall and the inner bottom wall of the filter box, and the inner side of the partition plate is fixedly connected with a connecting pipe. A filtering assembly for filtering waste gas is arranged at the top of the filtering box; the filter assembly comprises a motor fixedly connected to the top of the filter box, a connecting rod fixedly connected to an output shaft of the motor, a separation fan fixedly connected to the outer side of the connecting rod, and a first metal filter screen and a second metal filter screen which are fixedly connected between the inner top wall and the inner bottom wall of the filter box. According to the waste gas filter of the die-casting machine, the separation fan is driven by the motor to rotate at a high speed, large-particle dust and oil drops in waste gas are effectively separated through centrifugal force, and medium and small particles can be efficiently intercepted by combining the double filtering effects of the first metal filter screen and the second metal filter screen.

The utility model discloses a novel air purifier filter element which comprises a filter cylinder, a filter element body arranged on the front portion in the filter cylinder and a honeycomb-shaped filter plate arranged on the rear portion in the filter cylinder, a front check ring connected with the filter element body in a blocking mode is arranged on the front side of the filter cylinder, and a rear check ring connected with the honeycomb-shaped filter plate in a blocking mode is arranged on the rear side of the filter cylinder. And a baffle ring connected with the front baffle ring in a blocking manner is annularly arranged on the filter element. Double filtration is performed through the filter element and the honeycomb filter plate, so that the filtering effect is good; the front check ring, the rear check ring and the baffle ring can improve the sealing performance between parts, and the filtering effect of the filter element and the honeycomb filter plate is guaranteed; and a blocking connection mode is adopted for connection, so that disassembly and assembly are convenient, replacement, cleaning and reutilization are convenient, resource waste is avoided, and the use cost is reduced.

The ventilation and dustproof structure comprises a hot water unit body, a ventilation frame is fixedly installed on the side wall of the hot water unit body, ventilation holes are formed in the ventilation frame, an annular plate is inserted into the ventilation frame, a filter screen is fixedly installed in the annular plate, and the filter screen is connected with the ventilation frame. An annular plate is arranged on the right side of the ventilation frame, an insertion hole is formed in the right side of the ventilation frame, an insertion plate matched with the annular plate is inserted into the insertion hole, and a movable door is embedded in the left side of the ventilation frame. The ventilation frame is matched with the filter screen to conduct double filtration on dust, the dustproof effect is improved, the filter screen is convenient to replace, the ventilation effect is improved, dust is not prone to entering the hot water unit body during ventilation, and the heat dissipation effect of electronic devices in the hot water unit is improved.