652results about How to "Guaranteed filtering effect" patented technology

The invention relates to the technical field of spectrum analysis, in particular to an intelligent protein quality detection method and system based on spectrum analysis, and the method comprises the following steps: collecting infrared spectrum data of a preset number of protein samples; determining a local fluctuation coefficient of the transmittance of each wavelength; determining a fluctuation coefficient of the infrared spectrum data of each protein sample; screening the infrared spectrum data of all the protein samples based on the fluctuation coefficient to obtain fluctuation data of each suspected impurity; equally dividing each piece of suspected impurity fluctuation data into each fragment; determining an abnormal index of the suspected impurity fluctuation data in each segment; correcting a spatial domain weight and a value domain weight of each filtering window in a bilateral filtering algorithm based on the abnormal index, and denoising infrared spectrum data of the protein sample; and determining a difference coefficient of the infrared spectrum data of each protein sample, and detecting the protein quality. Therefore, the accuracy of protein quality detection is improved.

The invention relates to the technical field of sewage filtering, and discloses sewage filtering equipment for water resource treatment, which comprises a barrel body, and further comprises an upper turntable, a lower turntable, a water inlet pipe and a water outlet pipe, a circular groove matched with the lower rotating disc is formed in the bottom of the barrel body, and the lower rotating disc is rotationally installed in the circular groove; the filtering assembly is used for filtering impurities in the sewage; the cleaning assembly is used for cleaning the filtering assembly. According to the sewage treatment device, the first net cylinder and the second net cylinder are staggered to form a smaller diameter, a better filtering effect on sewage is conveniently formed, and when filtering holes formed by the first net cylinder and the second net cylinder are blocked, the second net cylinder is moved, so that the diameters of the filtering holes formed by the first net cylinder and the second net cylinder are increased, and the filtering effect is improved. And the first net barrel and the second net barrel can be cleaned conveniently, and the using effect of the equipment is improved.

The invention relates to the technical field of drainage structures, in particular to a drainage method for hydraulic engineering construction. The system comprises a sedimentation module and a water collection module, the sedimentation module comprises a sedimentation tank, the water collection module comprises a water collection tank, a plurality of communication mechanisms are communicated between the sedimentation tank and the water collection tank, each communication mechanism comprises two communication holes formed in the side walls of the sedimentation tank and the water collection tank at the same height, and the communication holes in the side walls of the sedimentation tank are located in the lower portion of the sedimentation tank; according to the drainage method for hydraulic engineering construction, the sedimentation tank is used for settling silt in collected water, and then the interception mechanism is used for filtering suspended impurities mixed in the water; when suspended impurities are accumulated in the intercepting plate, the intercepting plate slides up and down in the communicating pipe, so that the filtering effect can be kept while the accumulated impurities are removed; in the process that water flows through the communicating pipe, the gravitational potential energy difference of water level change can prevent silt from blocking the intercepting plate, and the intercepting plate can prevent impurities from entering the water collecting tank.

The invention discloses a photomask defect identification method, and belongs to the technical field of photomask detection. The method comprises the following steps: S1, acquiring a surface defect image; s2, preprocessing the surface defect image based on the imaging characteristics of the defect; s3, performing filtering algorithm correction on the preprocessed surface defect image; s4, performing colorimetric analysis on the surface defect image corrected by the filtering algorithm to obtain a particle region; s5, on the basis of morphological characteristics of defects, segmenting the particle region to obtain defect islands; and S6, performing morphological analysis on the defective island to obtain a defect type and a defect size. The photomask defect identification method provided by the invention combines morphological and colorimetric analysis methods to automatically process the surface defect image and extract the defect island, improves the accuracy of defect identification, gets rid of the constraint of the difference of different equipment imaging systems, realizes automatic batch processing, and saves the manpower and material investment in the mass production link.

The invention discloses a multistage AAO rural domestic sewage treatment device and method, and belongs to the technical field of domestic sewage treatment, the multistage AAO rural domestic sewage treatment device comprises a filter unit and a plurality of water supply units, the filter unit is communicated with an anaerobic tank through one water supply unit, the anaerobic tank is communicated with an anoxic tank through one water supply unit, and a gas pressure regulating tank is assembled on the anoxic tank; through the arranged compression unit, when a pressing plate is moved downwards through an electric hydraulic rod to compress collected waste, a lower baffle can be driven to move downwards together, the outlet end of a filtering piece is blocked, normal filtering can be guaranteed in the compression period, meanwhile, the waste does not continue to fall off, and the practicability is high. And meanwhile, after the collecting box is full of waste, the upper baffle can move upwards by moving the pressing plate upwards to block the Y-shaped flow dividing pipe, so that in the waste pouring period, even if a person pours sewage, the sewage cannot flow into the box, and the situation that the sewage is splashed all around is avoided.

The invention discloses a high-salinity wastewater treatment process and equipment, and solves the problems that impurities are not easy to self-clean and the blocking probability of a filter plate is still relatively high, the high-salinity wastewater treatment equipment comprises a treatment box, a treatment cavity is formed in the treatment box, the treatment cavity penetrates to the top end of the treatment box, a movable filter assembly is mounted in the treatment cavity, and the movable filter assembly is arranged in the treatment box. The movable filtering assembly comprises a partition plate fixedly mounted in the middle of the inner bottom wall of the treatment cavity, the partition plate divides the treatment cavity into a wastewater storage cavity and an impurity storage cavity, and a driving roller is arranged at the top of one side, away from the wastewater storage cavity, of the impurity storage cavity; according to the sewage treatment device, during working, the inclined filter belt is arranged in the treatment cavity, when wastewater is introduced into the wastewater storage cavity, the wastewater is filtered through the filter holes, the filter holes are uniformly formed in the filter belt, and the filter belt moves continuously, so that the wastewater continuously passes through the upper part of the scraping head while being continuously filtered; impurities attached to the filtering belt are scraped through the scraping head, so that the filtering effect is ensured.

The invention discloses an air quality feedback dust falling device for building safety engineering, and relates to the technical field of dust falling devices. Comprising a shell, an air suction port and an air exhaust port are formed in the two sides of the shell, a driving motor is arranged at the bottom of the shell, the output end of the driving motor is connected with a transmission shaft, a lifting plate is installed on the transmission shaft, a filter screen is installed on one side of the lifting plate, a driving plate is installed below the lifting plate, two sets of partition plates are installed below the driving plate, and a fixing plate is installed between the two sets of partition plates. A vortex piece is arranged on the lower side of the fixed plate, a cleaning plate is slidably installed in the vortex piece, a pressurizing cover is installed below the cleaning plate, a rotating plate is installed in the pressurizing cover, the flowing direction of dust and air in the vortex piece changes continuously, the dust impacts the inner wall of the vortex piece and loses kinetic energy, the air continues to flow towards the air outlet, and the positive plate attracts the dust. And the dust removal effect of the dust is improved through the cooperation of the vortex sheet and the positive plate.

The printing and dyeing wastewater treatment device comprises a treatment box, a partition plate is fixedly arranged in the treatment box, a bottom plate is arranged on one side of the partition plate in a sliding mode, the bottom plate is arranged on the side wall of the treatment box in a sliding mode through a sliding block, and a sliding groove corresponding to the sliding block is formed in the side wall of the inner side of the treatment box; a sliding groove is formed in the bottom plate, a threaded rod is rotationally arranged in the sliding groove and rotationally penetrates through the sliding block, a threaded through hole corresponding to the threaded rod is formed in the sliding block, a water inlet is fixedly formed in the side wall of one side of the processing box, a water passing opening is formed in the partition plate, and a filter plate is fixedly arranged on the side, close to the bottom plate, of the water passing opening. According to the textile printing and dyeing wastewater treatment device, textile printing and dyeing wastewater can be subjected to standing, filtering and adsorption treatment in sequence, multiple purification treatment modes are combined, the purification effect is greatly improved, the filter plate can be continuously scraped, and the situation that textile fibers are accumulated on the filter plate to affect the filtering effect is avoided.

The utility model relates to the technical field of access control, and discloses a mounting seat for a face recognition access control machine, which comprises a protective shell, a ventilation component is arranged on the inner side of the protective shell, filter components are arranged inside the left side and the right side of the protective shell, and an electric push rod is fixedly connected inside the rear side of the protective shell. Rotating rods are rotationally connected to the left side and the right side of the top end of the electric push rod correspondingly, connecting rods are rotationally connected to the bottoms of the two rotating rods correspondingly, fixing blocks are fixedly connected to the front portions of one ends of the two connecting rods correspondingly, clamping plates are fixedly connected to the front sides of the two fixing blocks correspondingly, and rubber pads are slidably connected to the interiors of the opposite sides of the two clamping plates correspondingly. According to the utility model, the two clamping plates move oppositely to fix the access control machine in the protective shell, so that the access control machine is protected and prevented from being damaged, the filter plate can prevent dust from entering the protective shell, and the filter plate can be detached to be cleaned to keep the filtering effect.

The invention discloses a waste gas treatment device for a steam boiler, and relates to the technical field of waste gas treatment.The waste gas treatment device comprises a purification bin, a gas inlet pipe is arranged at the bottom of the purification bin, a first exhaust pipe is arranged on one side of the upper end of the purification bin, a filter plate is fixedly installed in the purification bin, and a sleeve is fixedly installed at the bottom of an inner cavity of the purification bin; a cleaning assembly for cleaning the filter plate is arranged at the bottom of the sleeve, and a spraying assembly is arranged below the filter plate. According to the waste gas treatment device for the steam boiler, a cleaning plate and a rotating disc are driven by a servo motor to rotate, particulate matter adhering to the bottom surface of a filtering plate is effectively removed, in addition, a second inclined block and a cleaning rod are driven by the rotating disc to move, filtering holes of the filtering plate can be thoroughly cleaned, blockage is avoided, the filtering effect is guaranteed, and the practicability is high. And through cooperation of a first inclined block and a knocking rod, knocking vibration cleaning of the fixing frame, the arc plate, the cleaning rod and other components is achieved.

The utility model provides a filtering mechanism for an air conditioner fresh air system, which belongs to the technical field of fresh air filtering, and comprises a filtering box, an air outlet pipe is fixed on the side wall of the left end of the filtering box, the right end of the filtering box is fixedly connected with an outer plate through a screw, a dustproof net is fixedly connected in the outer plate, a mounting plate is fixedly connected in the filtering box, and the mounting plate is fixedly connected in the filtering box. A filter screen is fixedly connected into the mounting plate, and a mounting rod is arranged between the dustproof net and the filter screen. Through the arrangement of the mounting rod, the rotating shaft, the mounting head, the first cleaning brush, the nut, the mounting block, the second cleaning brush, the connecting frame, the gear ring, the assembly frame, the motor and the gear, the dust screen and the filter screen are automatically cleaned, the filtering effect is guaranteed, a cleaning piece can slowly rotate for use, abrasion is reduced, the cleaning piece is conveniently replaced, and the cleaning efficiency is improved. The problems that in the prior art, a filter screen is inconvenient to clean, and a cleaning piece is inconvenient to replace are solved.

The invention discloses an automatic gearbox oil filter with an anti-blocking structure, and relates to the technical field of oil filters, and the automatic gearbox oil filter comprises a composite mechanism. According to the automatic gearbox oil filter with the anti-blocking structure, through the design of the composite mechanism, the treatment mechanism is arranged at the top of the composite shell, oil enters from the top of the treatment mechanism, and the guide plate is of a funnel structure and plays a role in guiding the oil, so that the oil firstly enters the cylindrical oil filter through the treatment mechanism, and the central rotating shaft is controlled by the motor to rotate; the cylinder oil filter is driven to rotate properly, so that the contact area of impurities in oil liquid is increased, the filtering and adsorbing effects are improved, the impurity cleaning effect is improved, the impurities are prevented from flowing out, in the rotating process of the cylinder oil filter, the cylinder oil filter is in friction fit with the scraping mechanism, and the impurities on the surfaces of parts are cleaned. The bottoms of part of the oil filters are provided with structures similar to dirt collecting cavities, so that impurities are precipitated in the dirt collecting cavities, follow-up cleaning is facilitated, the filtering period of parts is prolonged, and oil flows out of the discharging mechanism.

The utility model discloses a seasoning processing and filtering device which comprises a filtering tank, a feeding hopper is fixed to the top of the filtering tank, a filtering mechanism is arranged in the filtering tank and comprises a conical filtering cover A, a conical filtering cover B and a discharging pipe, and a cleaning mechanism is arranged at the top of the filtering mechanism. A collecting mechanism is arranged on the outer side of the filtering tank; by arranging the filtering mechanism, multi-stage filtering operation of seasoning is achieved through cooperation of the conical filtering cover A and the conical filtering cover B. During filtering operation, filtered material residues are scraped and cleaned through the cleaning mechanism, and the cleanliness of the conical filtering cover A and the conical filtering cover B after long-time use is guaranteed; according to the seasoning filtering device, the seasoning can be continuously filtered, the filter element does not need to be frequently replaced, the filtering operation process is simplified, the filtering operation efficiency is improved, and then the practicability of the device is improved.

The utility model discloses a dust falling device for a coal sample crusher, which relates to the technical field of dust removal of crushers, and comprises a crusher body, a processing frame and a dust removal box, the crusher body is positioned at the top of the processing frame and is fixedly connected with the processing frame, and two crushing teeth are rotatably connected in the crusher body. The dust removal device has the advantages that the exhaust fan is started, dust generated by operation of the crusher body is sucked out through the arranged dust removal box while the exhaust fan operates, then the dust is filtered through the arranged filter screen, part of the dust can be adsorbed to the surface of the filter screen, and the dust removal effect is good. According to the device, the exhaust fan is driven to rotate, so that when the exhaust fan operates, the transmission roller is driven to synchronously operate, and the cleaning plate and the cleaning brush are driven to operate through the transmission roller, so that dust attached to the surface of the filter screen is cleaned, the filtering effect of the filter screen can be ensured under long-time use, and the service life of the filter screen is prolonged.

The invention provides a micropore infiltrating irrigation soil moisture conservation and water saving device and an application system thereof, and relates to the technical field of soil moisture conservation. The micropore infiltrating irrigation soil moisture conservation and water saving device comprises a water storage tank, a filtering tank and a pesticide mixing tank, the outer side of the water storage tank is communicated with a first connecting pipe, one end of the first connecting pipe is communicated with a main pipe, the side wall of the main pipe is communicated with a plurality of branch pipes at intervals, the inner wall of the main pipe is fixedly connected with a baffle, and a through hole is formed in the middle of the baffle and communicated with the branch pipes; a sliding groove is formed in the side wall of the baffle, a sliding block is slidably connected into the sliding groove, two sealing plates are slidably connected to the surface of the baffle, the side walls of the two sealing plates are fixedly connected with the side wall of the sliding block, a threaded rod is rotationally connected to the middle of the main pipe, and a threaded block is in threaded connection with the outer portion of the threaded rod. The water quantity entering the branch pipes from the main pipe can be controlled, so that the influence of excessive drip irrigation water quantity on the growth of crops is avoided, and resources can be saved.

The utility model relates to the technical field of steam pipeline construction, in particular to a steam pipeline construction protection device. The steam pipeline construction protection device can clean impurities and avoid corrosion and comprises an installation cover, pipelines, a filter frame, a filter screen, a connecting rod, a pull rod, a scraping rod and a magnet I. Connecting openings are formed in the two sides of the installation cover, and the pipelines are connected to the connecting openings of the installation cover. A filter frame is movably arranged in the mounting cover, filter screens are arranged on the two sides of the filter frame, connecting rods are slidably arranged on the two sides of the top of the mounting cover, pull rods are arranged at the bottoms of the connecting rods, scraping rods are arranged between the connecting rods on the two sides, the scraping rods make contact with the filter screens in a sliding mode, and magnets I are symmetrically arranged on the scraping rods. The connecting rod is pulled upwards to drive the scraping rod to scrape impurities on the filter screen, and the impurities can be scraped into the filter frame, so that the cleanliness of the filter frame and the filter screen is kept, and the influence of impurity residues on the filter efficiency is prevented.

The utility model relates to the technical field of petrochemical engineering, and discloses a petrochemical engineering safety detection device which comprises a base and a mounting frame, a mounting block is fixedly connected to the middle of the upper surface of the base, a sliding groove is formed in the middle of the outer wall of the front end of the mounting block, and connecting plates are fixedly connected to the middles of the outer walls of the periphery of the mounting frame. The outer walls of the sides, away from the center of the mounting frame, of the connecting plates are fixedly connected with detection shells through bolts, and the outer walls of the sides, away from the center of the mounting frame, of the detection shells are fixedly connected with cover plates through bolts. According to the petrochemical engineering safety detection device, the servo motor drives the threaded rod to rotate, the threaded sleeve drives the mounting plate to ascend and descend, so that the first connecting rod drives the mounting frame to ascend and descend, the height of the detection shell can be controlled, poisonous gas at different heights can be detected, and the detection effect of an alarm is enhanced; and meanwhile, the detection accuracy can be further improved through the detection shells arranged on the periphery.

The utility model discloses a coal mine fire prevention and extinguishment gas pumping device, which relates to the technical field of coal mine gas pumping and drainage and comprises a pumping and drainage main machine, a pipeline is mounted on the pumping and drainage main machine, the pipeline is connected with a mounting seat, a pumping and drainage pipe is mounted on the mounting seat, a filter screen is movably mounted on the pumping and drainage pipe, and a cleaning unit is mounted on the pumping and drainage pipe. The device has the beneficial effects that air is blown into the air bellow through the air inlet pipe, flowing airflow drives the scraping plate and the brush assembly to rotate through the fan blades, the main shaft, the driving bevel gear, the driven bevel gear and the supporting shaft, the filter screen is twisted and deformed through the scraping plate, the filter screen is cleaned through the brush assembly, and air in the air bellow is sprayed out through the air guide pipe, the air collecting ring and the air outlet holes; therefore, reverse spraying is carried out on the filter screen, impurities on the surface of the filter screen can fall off quickly and conveniently, the impurities are effectively prevented from being blocked in filter holes in the filter screen, the effect of filtering the impurities in the pumped gas by the filter screen is guaranteed, and the gas pumping efficiency is guaranteed.

The invention discloses an adjustable pressure reducing valve, and relates to the technical field of pressure reducing valves, the adjustable pressure reducing valve comprises a valve body, a valve cover, a diaphragm, a valve rod, a spring and a valve core, the valve body is internally provided with a filter cavity, the filter cavity is internally provided with a filter assembly, the valve body is externally provided with an overhaul assembly connected with the filter assembly, and the overhaul assembly is internally provided with a power assembly; a connecting rod is arranged between the power assembly and the valve rod and detachably connected with the valve rod, a washing assembly connected with the power assembly is arranged on the lower portion of the filtering assembly, and a cleaning assembly is arranged at the position, below the valve element, of the outer portion of the connecting rod. The purposes of filtering, intercepting and collecting impurities in water flow can be achieved, the impurities attached to the lower surface of the filter screen can be removed, water permeability and normal filtering of the filter screen are guaranteed, the impurities can be prevented from being clamped between the valve element and the valve seat after the valve element and the valve seat are closed, normal work of the pressure reducing valve is guaranteed, and the service life of the pressure reducing valve is prolonged. And meanwhile, the overhaul, cleaning and maintenance work of corresponding parts is quicker and easier to operate.

The invention discloses a tunnel construction dust removal device, and belongs to the technical field of tunnel construction equipment.The tunnel construction dust removal device comprises a movable box body serving as a mounting carrier, a funnel bin is mounted at one end of the movable box body, and a fan is mounted in the funnel bin; a first treatment bin, a second treatment bin, a third treatment bin, a fourth treatment bin, a fifth treatment bin, a sixth treatment bin and a water storage bin are sequentially arranged from one end, close to the fan, in the movable box body to the other end, and the fourth treatment bin and the fifth treatment bin are separated by a square partition plate. According to the invention, by designing the spraying and dust-reducing mechanism which can be folded and stored, the spraying and dust-reducing mechanism is completely unfolded during dust removal, so that the spraying and dust-removing range and effect of the whole device can be improved, and when the spraying and dust-reducing mechanism is not used, the spraying and dust-reducing mechanism can be completely folded, so that the space occupied by the device is reduced; and the whole tunnel construction dust removal device is convenient to transport and store.

The invention provides a harmless treatment waste gas remelting combustion device which comprises a cooling mechanism used for reducing the temperature of waste gas; the impurity removing mechanism is connected with the cooling mechanism through a first waste gas connecting pipe and is used for filtering impurities in the waste gas; the combustion mechanism is connected with the impurity removal mechanism through a third waste gas connecting pipe and is used for fully combusting the waste gas; the temperature of waste gas can be reduced, impurities can be dissolved, and the filtering effect of an activated carbon plate can be guaranteed through a spraying assembly of the cooling mechanism, oil, water, vapor and flow velocity can be adjusted through a water retaining assembly, continuous work can be guaranteed and unfiltered waste gas can be prevented from passing through when the activated carbon plate is replaced through a filtering and air exhaust assembly of the impurity removal mechanism, and the air exhaust assembly can accelerate filtering and supply oxygen to promote combustion. The gas flow is accurately regulated and controlled through the quantity control assembly of the combustion mechanism, waste gas is preheated through the combustion filling assembly, energy is saved, and sufficient combustion is promoted.

The utility model discloses a biogas purifying, absorbing and filtering device which comprises a filtering tank, a hydraulic cylinder is installed on the lower portion of the inner side of the filtering tank, a hydraulic rod is installed above the hydraulic cylinder, a movable plate is movably connected above the hydraulic rod, a filter element is installed above the movable plate, a partition plate is fixed above the filter element, and the partition plate is connected with the hydraulic cylinder. An air inlet pipe is installed on one side of the filtering tank, a first fixing disc is installed on one side of the air inlet pipe, and the outer side of the first fixing disc is sleeved with a hoop; according to the biogas purifying, absorbing and filtering device, the hoop, the sealing ring and the first bolt are arranged, the hoop is fixed to the outer side of the sealing ring through the first bolt in the using process of the device, the sealing ring seals the connecting position of the biogas inlet pipe, and biogas can be effectively prevented from leaking outwards; safety accidents such as poisoning can be caused by biogas leakage, safety hazards to workers are reduced, and biogas leakage is prevented so that production safety can be guaranteed.

The invention discloses an energy-saving rainwater collecting and recycling water collecting type building, and relates to the technical field of water collecting type constructions.The energy-saving rainwater collecting and recycling water collecting type building comprises a house body and a rainwater treatment tank arranged on one side of the house body, a rainwater pipe is fixedly installed on the house body, and the bottom of the rainwater pipe communicates with a rainwater collecting tank; the top of the rainwater treatment tank is fixedly provided with a diversion cylinder, the bottom of the rainwater treatment tank is communicated with a drain pipe, the diversion cylinder is communicated with a plurality of diversion pipes, one end, far away from the diversion cylinder, of each diversion pipe extends into the rainwater treatment tank and is communicated with a filter cartridge, and each filter cartridge is fixedly connected with the rainwater treatment tank; according to the invention, the filter cartridge can be automatically discharged and cleaned, so that the whole process is automatically carried out, the shutdown operation of personnel is not needed, the use convenience of the device is greatly improved, the self-cleaning operation of the filter cartridge is realized, the filter device does not need to be manually cleaned and maintained, the operation is simple, and the use is convenient.

The invention relates to the technical field of casting quality detection, in particular to a casting quality automatic detection method for a sodium silicate sand mold casting process. The method comprises the following steps: acquiring point cloud data of a casting surface of a sodium silicate sand mold casting process; obtaining a data distribution characteristic value of each similar point set according to the relative position distribution of the point cloud data in each similar point set and the distribution condition of the point cloud data in the neighborhood of each point cloud data; determining a noise evaluation value of each similar point set by combining aggregation distribution characteristics among the point cloud data in the similar point sets and discrete distribution characteristics among different similar point sets; obtaining a filtering radius corresponding to each similar point set according to the data distribution characteristic value and the noise evaluation value; and filtering the corresponding similar point set by using the filtering radius, and evaluating the quality of the casting based on the filtered point cloud data. The filtering effect of the point cloud data of the casting surface is ensured, and the accuracy of the detection result of the casting quality is improved.

The utility model provides a sewage treatment filtering device, which belongs to the technical field of sewage treatment and comprises a sewage filtering box, a sewage inlet pipe, a sewage discharge pipe, a standby collecting box, a replacement driving motor, a replacement filtering mechanism and a filtering and collecting mechanism, the sewage inlet pipe is fixedly connected to the front end of the sewage filter tank; the blow-off pipe is fixedly connected to the rear end of the sewage filter tank; a standby collecting box is fixedly connected to the right side of the sewage filtering box; a replacement driving motor is fixedly connected to the right side of the standby collecting box; the replacing and filtering mechanism is arranged in the sewage filtering box; the filtering and collecting mechanism is arranged in the standby collecting box, so that the idle time of the whole sewage filtering box is shortened, and the sewage treatment efficiency is ensured.

The utility model belongs to the technical field of air filters of gas compressors, and particularly relates to an air filter of a gas compressor, which comprises a filtering mechanism. The sealing device comprises a sealing rubber strip; sealing rubber strips are mounted on the clamping cambered surfaces of the first clamping plate and the second clamping plate; lifting grooves are formed in the upper end face and the lower end face of the first clamping plate and the upper end face and the lower end face of the second clamping plate. A two-way screw rod is rotationally mounted in the screw hole; lifting plates are mounted in the lifting grooves; the lifting plate is arranged outside the section of the bidirectional lead screw in a sleeving mode. Buckle plates are fixedly connected to the end parts of the lifting plates; a first rotating button is installed at the end, extending out of the outside, of the two-way lead screw. The connecting end part of the first clamping plate is fixedly connected with a fixed block; the connecting end part of the second clamping plate is fixedly connected with a connecting block; under the action of the sealing device, the probability of leakage of the filter is reduced, the sealing effect and the filtering effect of the filter are ensured, and the waste of energy and resources is reduced.

The utility model discloses a sewage treatment tank, and belongs to the technical field of sewage treatment tanks. Comprising a sedimentation tank, the sedimentation tank comprises a water inlet pipe, a water outlet pipe, a horizontal flow bin and a sedimentation bin with a valve, the water inlet pipe is arranged on the side of the sedimentation bin, a sludge scraping screen plate inclining towards the sedimentation bin is arranged in the sedimentation tank in a sliding mode, and the sludge scraping screen plate is attached to the horizontal flow bin; the settling pond is fixedly provided with a linear module for driving the sludge scraping screen plate to reciprocate, a cleaning mechanism is arranged in the settling pond in a sliding manner, the cleaning mechanism slides up and down along the settling pond, and the cleaning mechanism is arranged on the slope side of the sludge scraping screen plate, so that floating matters and suspended matters in sewage are intercepted; and the filtering burden is reduced.

The utility model relates to the technical field of fruit and vegetable cleaning wastewater treatment, and discloses a fruit and vegetable cleaning wastewater treatment and recovery device which comprises a treatment box, a water inlet pipe used for enabling fruit and vegetable cleaning wastewater to enter is arranged at the top of the treatment box, and a water outlet cabinet used for discharging the treated fruit and vegetable cleaning wastewater is arranged at the bottom of the side wall of the treatment box. The left side partition plate and the right side partition plate are fixedly mounted in the treatment box left and right to divide the internal space of the treatment box into a filter cavity, an electric appliance cavity and a purification cavity; fruit and vegetable cleaning wastewater enters the filter cavity through the water inlet pipe, impurities and large sludge in the wastewater can be filtered out through the filter screen, then the wastewater is precipitated in the filter cavity, and after precipitation, the clarified wastewater is conveyed into the purification cavity through the water pump and is filtered by the filter element, so that pesticide residues in the wastewater are eliminated; in the whole treatment process, sludge is removed, meanwhile, pesticide residues are eliminated, and secondary utilization of the wastewater is facilitated.

The utility model relates to the technical field of VOCs waste gas purification treatment, in particular to a VOCs waste gas activated carbon adsorption and desorption treatment device which comprises an adsorption and desorption box and an air heater, the adsorption and desorption box comprises a box body, a mounting shaft, a barrel body, an activated carbon module and a driving assembly, the box body is of a hollow cylinder structure and is divided into an adsorption chamber and a desorption chamber by a partition plate, and the mounting shaft is arranged on the mounting shaft; a through hole is formed in the partition plate, the mounting shaft is mounted in the through hole, the barrel is of a hollow cylindrical structure and is divided into a first cavity and a second cavity by a baffle, the mounting shaft penetrates through the baffle and is in running fit with the baffle, activated carbon modules are arranged in the first cavity and the second cavity respectively, and the peripheral wall of the barrel is arranged in an annular groove formed in the inner wall of the box. The driving assembly is arranged at the top end of the box body to drive the barrel body to rotate, and the hot-air blower is communicated with the desorption chamber; the VOCs waste gas treatment device is simple in structural design, conversion between adsorption and desorption is convenient and safe, and solid particles in VOCs waste gas can be effectively removed.