65results about How to "Reduce cleaning effect" patented technology

The invention discloses a multi-angle micro-nano bubble cleaning system for wafers, which belongs to the technical field of micro-nano bubble cleaning and comprises an ozone generator, a heating tank, a micro-nano bubble generator, a cleaning tank, a filter and an electric control cabinet. The ozone generator and the heating tank are respectively connected with an inlet of the micro-nano bubble generator, an outlet of the micro-nano bubble generator is connected with an inlet of the cleaning tank, and an outlet of the cleaning tank is connected with the filter; the electric control cabinet is electrically connected with the heating tank, the ozone generator and the micro-nano bubble generator; the cleaning pool comprises a cleaning station and a plurality of cleaning nozzles, and the cleaning nozzles can be driven to swing through a reciprocating motor; the invention further discloses a corresponding cleaning method. The cleaning efficiency and the removal rate of stains on the surface of the wafer can be improved, uneven cleaning is avoided, and pollution to the environment is reduced.

The utility model discloses an epitaxial growth ring bearing jig. The epitaxial growth ring bearing jig comprises a growth disc and a growth ring, the growth disc comprises a base and a step part protruding out of the upper surface of the base. The growth ring is arranged on the periphery of the growth disc in a surrounding mode and comprises an upper sealing part and a lower sealing part which are connected with each other. The upper sealing part covers one part of the upper surface of the step part in parallel, and the upper sealing part and one part of the upper surface of the step part are arranged at intervals to form a containing groove, so that the substrate in the containing groove and the upper sealing part are arranged hermetically. One end of the lower sealing part is connected with one end, close to the edge of the growth disc, of the upper sealing part, the other end of the lower sealing part extends to the bottom of the peripheral surface of the base towards the base, and the lower sealing part is close to the peripheral surface of the growth disc, so that the lower sealing part is sealed with the peripheral surface of the growth disc. According to the epitaxial growth ring bearing jig provided by the utility model, the substrate atomization phenomenon is improved, the working procedures are reduced, the input cost is reduced, the yield of the epitaxial layer of the substrate is improved, and the shipment efficiency is improved.

The invention relates to the technical field of urban guardrail cleaning, and discloses an intelligent urban guardrail cleaning system and method, and the method comprises the steps: obtaining an urban road network, taking a road intersection as a node, taking a road section between two road intersections as an edge, building an urban road network model, adding an attribute label and a corresponding numerical value for each edge, the attribute label comprises a distance value, estimated passing time and cleaning times of the day; obtaining the remaining electric quantity, the remaining water quantity, the current position information and the destination information of all the cleaning vehicles; and according to the residual electric quantity, the residual water quantity, the current position information, the destination information and the attribute label of the cleaning vehicle, selecting a traveling route of the cleaning vehicle. By comprehensively controlling the residual electric quantity, the water quantity, the road attribute and the traffic condition of the cleaning vehicle, the cleaning efficiency is improved, and the waste of energy and water resources is effectively reduced; and through the early warning module, the power shortage condition can be recognized in advance, and cleaning interruption is avoided.

The invention provides a pickling process method for rotatable guide vane blades, which comprises the following steps: S1, performing oil removal process locking, and performing cleaning comparison on the same batch of blades at different times and different temperatures to completely remove oil stains on the surfaces of the blades; s2, acid process optimization is carried out, acid comparison at different times and different temperatures is carried out on the same batch of leaves, and an oil removal procedure and a neutralization procedure are fixed; s3, carrying out final determination on an alkali neutralization sample; and S4, the blade surface is subjected to compressed air cleaning and drying comparison in a drying furnace. By means of the method, the clean rotatable guide vane blade is obtained, meanwhile, cleaning of worker surface dust scraping is avoided, an ideal surface is provided for subsequent blade detection, the production efficiency is improved, damage to the blade surface caused by repeated acid pickling cleaning is avoided, and by means of the experiment, optimal acid pickling process parameters are found out; a large amount of unnecessary surface secondary cleaning and polishing are reduced, manpower is reduced, and experimental data are accumulated for the pickling process.

The spraying arm assembly comprises two spraying arms, the spraying arms are configured in the mode that fluid sprayed from multiple water outlets can drive the spraying arms to rotate around the rotating axis, and the rotating directions of the fluid sprayed from the water outlets of the two spraying arms driving the spraying arms to rotate around the rotating axis are opposite; in the two spraying arms, the water curtains sprayed by the water outlets of at least one spraying arm are in a fan shape, and the water curtains sprayed by the two adjacent water outlets have an overlapping area. According to the spraying arm, the water curtain sprayed by the water outlet in the spraying arm is in a fan shape, and compared with fluid sprayed by the water outlet in a columnar shape, the fan-shaped water curtain is wider in coverage area, larger in cleaning range and better in cleaning effect. The projection of the water curtains sprayed by the two adjacent water outlets in the first reference plane has an overlapping area, so that the water curtains formed by the two water outlets can be mutually filled in the process that the spraying arm rotates around the rotating axis, the cleaning blind area of the two adjacent water outlets is reduced, the cleaning range is further widened, and the cleaning effect is further improved.

The utility model belongs to the technical field of semiconductor wafer cleaning, and discloses a flower basket inductor. The flower basket inductor comprises an inductor body, a detection rod and an elastic piece, the detection rod is movably arranged on the inductor body in a penetrating mode, the end of the detection rod is used for abutting against a flower basket, the detection rod is provided with a magnet capable of being inducted by the inductor body, and the detection rod moves in the length direction to drive the magnet to be close to or away from the inductor body. The inductor body can send a signal to the outside; the elastic piece is arranged on the detection rod and can apply elastic force to the detection rod in the length direction of the detection rod so that the magnet can be close to the inductor body in the length direction of the detection rod. According to the flower basket inductor, the problem that the detection rod slides unsmoothly due to the fact that crystals are attached to the detection rod due to evaporation of liquid medicine in the cleaning tank is solved to a great extent, the situation that wafers in a flower basket are not cleaned or shut down due to mistaken induction is greatly reduced, and then the practicability of the flower basket inductor is improved.

This utility model discloses a valve cleaning device for valve production, including a top frame, a pool body locking mechanism, a washing pool locking mechanism, and a locking auxiliary mechanism. The pool body locking mechanism includes a drive motor and a lifting frame, a bottom fixing pipe and a locking rod, and an outer rotating sleeve and an outer fixing ring. The pool body locking mechanism achieves precise electric adjustment of the washing pool height through the meshing design of the drive motor, rotating teeth and tooth plates. The guiding sliding structure of the side rail and guide sleeve ensures the smooth and stable lifting process. The washing pool locking mechanism adopts a combination design of bottom fixing pipe, locking rod and locking pipe. Through the cooperation of inner wall block, embedded groove and patch block, plus the elastic pressure provided by the compression spring frame, the washing pool can be quickly installed and disassembled, solving the problem of inconvenient installation and disassembly of the washing pool in traditional devices.

The utility model discloses a cleaning device for magnetic core processing, which belongs to the technical field of magnetic core cleaning and comprises a support frame, a water tank is arranged in the support frame, a shell is arranged at the top of the support frame, and a filter component for filtering cleaning fluid is arranged in the water tank. A conveying assembly for adding a cleaning agent into the water tank is further arranged on the supporting frame, through the arranged filtering assembly, the effect of filtering the cleaning liquid flowing into the water tank from a conveying net belt is achieved, impurities in the cleaning liquid can be effectively removed, the cleaning effect of the cleaning liquid is prevented from being reduced, and the service life of the cleaning liquid is prolonged; through the arranged conveying assembly, the effect of adding the cleaning agent into the water tank is achieved, the adding amount of the cleaning agent can be accurately controlled, the optimal concentration of the cleaning agent is maintained, the cleaning effect is guaranteed, excessive use of the cleaning agent can be avoided, waste is reduced, and cost is reduced.

The purpose of the present invention is to provide a technique whereby the decomposition of a surfactant can be greatly suppressed without adding a stabilizer. The problem is solved by a method for suppressing decomposition of a surfactant in a cleaning solution for aluminum or an aluminum alloy, the cleaning solution containing an inorganic acid, iron ions, and 0.1-10 g / L of the surfactant, the cleaning solution having a pH of 2 or less. The method includes a step of adding one or more oxoacid salts selected from the group consisting of monooxygenated acid salts and diooxygenated acid salts to the cleaning solution.

The invention relates to an intelligent meter reading method and system based on AI vision and electronic equipment. The intelligent meter reading system comprises a water meter, a camera device, a server and a water meter cleaning device, the method is applied to a server and comprises the following steps: acquiring a water meter image shot by a camera device in real time, analyzing the water meter image and determining whether the water meter has stains; if it is determined that the stains exist, the water meter type of the water meter is determined according to the water meter image; determining a data distribution condition of the water meter according to the water meter type; according to the data distribution condition, whether the stains affect data reading or not is determined; if the data reading is influenced, the water meter cleaning device is started to clean the water meter to read the value of the water meter so as to ensure the normal work of the water meter and the accurate reading of the data. Automatic and intelligent water meter monitoring and cleaning are achieved, the working efficiency is improved, and manual intervention and operation errors are reduced. Stains can be found and treated in time, and better service is provided for water supply companies and users.

The invention discloses solid-liquid separation equipment for wastewater recycling, and relates to the technical field of wastewater treatment.The solid-liquid separation equipment comprises a recycling bin, a sewage discharging bin, universal wheels, a separation mechanism, a reaction tank, a mixing mechanism and a sewage disposal mechanism, the universal wheels are arranged at the four corners of the lower portion of the recycling bin, the sewage discharging bin is arranged on one side of the recycling bin, and the sewage disposal mechanism is arranged in the sewage discharging bin; a reaction tank is formed in the recovery bin, a mixing mechanism is arranged in the reaction tank, a gear-driven separation mechanism is arranged on the upper side of the recovery bin, a baffle is arranged between the recovery bin and the wastewater bin, and an inclined plate is fixedly connected to the upper side of the baffle; according to the device, the separation bin is cooperatively controlled to swing through the self-weight of waste water in combination with the liquid level sensor and the telescopic air cylinder, two-stage filtering is achieved through the coarse filter screen and the fine filter screen, dynamic filtering is achieved, solid particles with different particle sizes are efficiently intercepted, the solid-liquid separation effect and efficiency are improved, filtering continuity is guaranteed, the filter screen maintenance workload is reduced, and the equipment operation reliability is enhanced; the wastewater treatment quality is favorably improved, and the cost is reduced.

The embodiment of the invention discloses an external insulation configuration method and system for a pollution source metal component-containing region and a medium, and the method comprises the steps: determining the pollution flashover climbing degree of an insulator according to the metal particle component, the particle size and the mass ratio of the pollution on the surface of the insulator in a power transmission line in a target region; the target area is an area with a pollution source containing metal components; fitting a correction formula among the particle sizes, the mass proportions and the pollution flashover elevator climbing degree corresponding to different metal particle components; the pollution flashover elevator climbing degree of the insulator under the current working condition of the power transmission line is determined through a correction formula; the external insulation configuration model is determined according to the pollution flashover elevator climbing degree of the insulator under the current working condition, the number of insulator strings in the target area is configured according to the external insulation configuration model, the number of unnecessary insulator replacement and cleaning times is reduced, the operation and maintenance cost is reduced, and the economical efficiency of a power grid is improved.

The utility model belongs to the technical field of tailing ore processing, and particularly relates to a fine sand dewatering screen for tailing ore processing, which comprises a bottom frame, a vibrating motor, a screen frame and a driving motor, the screen frame is movably mounted on the bottom frame through a spring, and the vibrating motor is fixed on the screen frame and used for generating vibration. The driving motor is fixed to one side of the frame body, the frame body is rotationally connected with a rotating shaft, the rotating shaft is driven by the driving motor, the square frame is rectangular, the surface of the rotating shaft is fixedly connected with a supporting rod, the square frame is fixedly connected to the rotating shaft through the supporting rod, and the transverse rod is arranged on the square frame and connected with the square frame through a sliding mechanism. The square frame is matched with the cross rod to scatter the fine sand, and the situation that the cleaning effect of the fine sand is reduced due to the fact that the deposited fine sand is not completely filtered and soil still exists in the fine sand can be avoided.

The invention discloses an ultrafiltration hydrophilic coating. The ultrafiltration hydrophilic coating comprises the following components: a hydrophilic polymer containing a carboxylic acid group, an amino crosslinking agent and zirconium oxide nanoparticles, the ultrafiltration hydrophilic coating comprises the following components in parts by weight: 0.4-0.6 part of a hydrophilic polymer containing a carboxylic acid group; 0.4 to 0.6 part of an amino crosslinking agent; and 0.02 to 0.2 part of zirconium oxide nano particles. The invention also discloses a preparation method of the ultrafiltration hydrophilic coating, which comprises the following steps: S1, mixing the hydrophilic polymer containing the carboxylic acid group, the amino cross-linking agent and the zirconium oxide nanoparticles, and dispersing and stirring at a high speed of 2000rpm for 6 hours to prepare a fixed and uniformly dispersed solution; s2, uniformly coating the surface of an ultrafiltration membrane with the fixed and uniformly dispersed solution through a coating solution; and S3, extruding redundant solution through an extrusion roller, and carrying out cross-linking curing to prepare the ultrafiltration hydrophilic coating. Adsorption of pollutants on the surface of the ultrafiltration membrane can be effectively prevented, the anti-pollution capacity is improved, the service life of the membrane is prolonged, and system stability is ensured.

The present application relates to a scale-free hot water volumetric heat exchanger, comprising a body, a heat exchange tube bundle and an electrolytic anti-scaling device, wherein a heat exchange cavity is arranged in the body, and a water inlet and a water outlet communicating with the heat exchange cavity are arranged on the outer wall of the body; the heat exchange tube bundle is located in the heat exchange cavity and is used to allow a heat exchange medium to pass through, the heat exchange tube bundle comprises a first heat exchange tube bundle, one end of the first heat exchange tube bundle is set as an inlet end, a second heat exchange tube bundle is arranged at an end of the first heat exchange tube bundle away from the inlet end, and the diameter of the first heat exchange tube bundle is larger than that of the second heat exchange tube bundle, and an end of the second heat exchange tube bundle away from the second heat exchange tube bundle is set as an outlet end; the electrolytic anti-scaling device is located between the first heat exchange tube bundle and the second heat exchange tube bundle, and the first heat exchange tube bundle and the second heat exchange tube bundle are both connected to the electrolytic anti-scaling device. The present application has the effect that the heat exchange medium has been cooled in advance, thereby reducing the risk that high temperature water affects the electrode reaction and ion migration rate in the electrolysis process, thereby affecting the efficiency and stability of the device.

The utility model discloses a cooling and dewatering device for hydrogen treatment, which comprises a hydrogen washing tower, a hydrogen compressor, a hydrogen cooler A, a hydrogen water mist catcher A, a hydrogen cooler B and a hydrogen water mist catcher B. The hydrogen washing tower comprises a packing layer and a baffle plate, and hydrogen and water are in sufficient reverse contact. The tube pass of the hydrogen cooler A and the tube pass of the hydrogen cooler B are 7-degree water and 0-degree water respectively, a self-cleaning filter is used for filtering impurities in the 7-degree water at the water inlet of the hydrogen cooler A of the system, the equipment cleaning frequency is reduced, drainage time is controlled by drainage timers at the lower parts of the hydrogen water mist catcher A and the hydrogen water mist catcher B, the stability of the hydrogen system is controlled, and the service life of the hydrogen system is prolonged. The device reduces the water content of hydrogen, reduces the frequency of shutdown maintenance of the system, improves the safety coefficient of production, and reduces the labor intensity of operators.

The invention discloses a pollution sensing physical design method of a microfluidic FPVA biochip, and relates to the technical field of biochips. The method comprises the following steps: respectively defining framework descriptions of a pollution sensing layout model and a pollution sensing wiring model based on a microfluidic FPVA biochip; obtaining a trained layout model and a trained wiring model; by synchronizing and coordinating the trained layout model and wiring model, the trained layout model and wiring model can globally perceive changes of all resources on the FPVA biochip when executing respective tasks, and a physical design scheme of pollution perception is obtained. By designing a new physical design framework based on deep reinforcement learning, the overall performance of the chip is remarkably improved, the total cleaning cost of bioassay is reduced to the maximum extent, and the overall length of a fluid transportation path is optimized.

A comprehensive range hood includes a casing, a fan disposed inside the casing, a condensing device disposed at the air inlet of the fan, and a filtering device disposed at the rear end of the air outlet of the fan. A position adjustment device is disposed on the upper side of the casing, and the position adjustment device can drive the casing to shift up, down, left, and right. The present invention filters the oil fume once through the condenser pipe part, and then performs a secondary filtration through the oil-absorbing cotton in the oil collecting chamber, and then performs a third precipitation filtration on the oil fume through the oil collecting chamber; finally, the oil fume is discharged; the grease in the oil fume is purified, and the grease discharged into the air is reduced; and the range hood of the present invention can be adjusted in height according to the installation requirements during installation; and the range hood can also be shifted during use.

The utility model discloses a kind of pollution-preventing traceable disposable sample transfer inner container structure, including the shell of the bottom with several clamping grooves and the upper cover with information board located on the upper end of shell, disposable seal is sealingly connected between shell and upper cover, shock-absorbing component is equipped on the shell periphery, lower shock-absorbing layer and the sample holder with several sample holes located above lower shock-absorbing layer are equipped in the shell inner cavity, the lower part of upper cover is equipped with several pressing columns that are pressed to the upper end of sample holder after closing, the lower part of upper cover is equipped with upper shock-absorbing layer located above sample holder.The utility model can enhance pollution prevention and control in sample transportation process, new inner container structure can be directly replaced after each use, prevent sample from causing pollution to transfer box, reduce cleaning and cross-infection risk, with clear information module and visual seal, with visual trace mechanism, can realize person of responsibility confirmation and sample whole-process traceability.

The utility model belongs to the technical field of cleaning equipment, and particularly relates to ultrasonic cleaning equipment convenient for taking and placing articles, which comprises a cleaning machine body, two electric push rods are fixedly connected to the side wall of the cleaning machine body; the two electric push rods are oppositely arranged; the end part of the electric push rod is fixedly connected with a fixed rod; the end parts of the two fixed rods are fixedly connected with a machine cover; two supporting rods are fixedly connected to the bottom of the machine cover; the two supporting rods are oppositely arranged; a cleaning basket is fixedly connected to the middle parts of the two supporting rods; two sliding rails are fixedly connected to the side wall of the cleaning machine body. The two sliding rails are fixedly connected to the positions corresponding to the supporting rods. The cleaning basket can be effectively lifted in the cleaning machine body through the electric push rod to change the height, objects of different sizes can be easily and rapidly placed or taken by effectively adjusting the height of the cleaning basket, and the cleaning basket can be effectively stretched to a proper position, so that the labor intensity in the object taking and placing process is reduced.

The utility model relates to the technical field of glass production and processing, and discloses a glass conveying device which comprises a base and a mounting seat, one end of the mounting seat is hinged to the base, a driving part is hinged to the base, an output shaft of the driving part is hinged to the mounting seat, the driving part can drive the mounting seat to incline, and a driving unit and a conveying mechanism are arranged on the mounting seat. The driving unit can drive the conveying mechanism to rotate, and the conveying mechanism is used for conveying glass. According to the technical scheme, the cleaning efficiency of the etching liquid can be improved, and secondary corrosion of the etching liquid to the surface of the glass is reduced.

The utility model belongs to the technical field of tilapia mossambica processing, and particularly relates to a tilapia mossambica processing and cleaning device which comprises a frame, a shell is fixedly connected to the top of the frame, a first feeding port is formed in the top of the shell, and a screening mechanism used for classifying tilapia mossambica of different sizes is arranged at the bottom of the first feeding port. And a water supply assembly used for preliminarily cleaning the tilapia mossambica is arranged at the top of the frame, an inclined plate is fixedly connected to the inner wall of the shell, a second feeding opening is formed in the side, away from the screening mechanism, of the inclined plate, and a cleaning assembly is arranged on the left side of the second feeding opening. According to the tilapia mossambica processing and cleaning device, tilapia mossambica of different sizes is classified through the screening mechanism, follow-up cleaning is more targeted, it is avoided that tilapia mossambica of different sizes is mixed, cleaning is insufficient or mutual extrusion damage is caused, the water supply assembly is matched after classification through the screening mechanism, preliminary cleaning and deep cleaning are completed, and manual sorting and cleaning steps are reduced.

The utility model relates to the technical field of vegetable processing, and discloses a feeding device for vegetable cleaning, which comprises a cleaning pool, the bottom of one side of the cleaning pool is fixedly connected with a protective shell, the interior of the protective shell is fixedly connected with a motor I, and the output end of the motor I penetrates through the protective shell and is fixedly connected with a rotating shaft I; one end of the first rotating shaft is fixedly connected with a threaded rod, the interior of the first motor is rotationally connected with a second rotating shaft, one end of the second rotating shaft is fixedly connected with a second threaded rod, and the exterior of the first rotating shaft is fixedly connected with a first rotating wheel. According to the vegetable cleaning device, the first motor is started, the threaded rod is driven to rotate, the supporting plate is made to move, when one side of the top of the supporting plate makes contact with the blocking plate, the blocking plate extrudes the supporting plate, and the rising supporting plate is made to rotate, the vegetables are evenly fed into the cleaning pool in batches to be cleaned, it is guaranteed that the fed vegetables cannot be stacked, needed water or cleaning agents are reduced, and the cleaning time is shortened; and the operation cost is reduced.

The present invention relates to an automatic cleaning system for membrane components of a marine MBR domestic sewage treatment device, wherein a membrane component is placed in a membrane cabinet, and the membrane cabinet is connected to a coagulation-aeration flushing membrane device, a sludge cabinet, and an offline chemical cleaning device through pipelines, and the membrane component is connected to a reverse air washing device and an online reverse chemical cleaning device through pipelines; an air pump is connected to a coagulation-aeration flushing membrane device, a reverse air washing device, an online reverse chemical cleaning device, and an offline chemical cleaning device through a gas distributor; a membrane cabinet discharge valve is provided at the bottom of the membrane cabinet, and a membrane cabinet low liquid level is provided on the membrane cabinet. The present invention can form large-size flocs of organic matter that is easy to block the membrane by coagulation-aeration flushing the membrane surface, and precipitate and remove them in a sedimentation cabinet by air lift, so that they are not easy to cause clogging of membrane pores, and at the same time, aeration flushing can use bubbles to shake and flush the surface of the membrane element, so that pollutants are not easy to stay on the surface of the membrane element, reducing the possibility of clogging the membrane.

The application belongs to the technical field of urban secondary water supply equipment and automatic water tank cleaning, and discloses a distributed dual-working-condition pressurized cleaning control method, system, equipment and medium, which comprises the following steps: collecting the liquid level of a roof water tank, high-area water supply pressure, water consumption load, cleaning task, pump set state and valve position information; when cleaning is not triggered, controlling the opening of a life pressurization branch and the closing of a cleaning jet branch, driving the pump set to supply water at a constant pressure and dynamically adjusting the frequency; when cleaning is triggered, determining the working condition switching condition based on the liquid level, load, pressure, state and valve position information, allowing the closing or flow limiting of the life branch and the opening of the cleaning branch, increasing the pump set frequency and switching to the cleaning working condition; performing partitioned jet cleaning on the inside of the water tank through a cleaning nozzle; after cleaning is completed, reducing the pump set frequency, closing the cleaning branch, opening the life branch and restoring the constant pressure water supply working condition. The application realizes the dual-working-condition operation of constant pressure water supply and water tank cleaning through the same set of broadband multi-stage centrifugal pump set.

The utility model discloses a main shaft of high-speed friction washing equipment, and relates to the technical field of plastic recovery equipment. A plurality of pairs of blade assemblies which are arranged in a 180-degree staggered mode are fixed to the circumference of the outer shaft at equal intervals, each pair of blade assemblies comprises two blades, the two blades are located outside the same circumferential section of the outer shaft, the two blades are arranged in a 180-degree mode, the blades and the axis of the outer shaft are arranged in a 90-degree mode, and the two blades are fixed to a first fixing plate through first bolts. A first reinforcing plate is arranged on one side of the first fixing plate, and the first fixing plate and the first reinforcing plate are welded to a shaft body of the outer shaft. And a pair of discharging blades which are arranged at an angle of 180 degrees are arranged outside the same circumferential section of the discharging end of the outer shaft, and the discharging blades and the blades in the same circumferential direction are arranged at an angle of 180 degrees. According to the utility model, materials can be uniformly dispersed, a stable flow field and multi-angle friction are formed, vibration and abrasion are reduced, and the equipment stability is improved.

The invention discloses an algal-bacterial symbiotic coupling ceramic membrane gravity-driven water purification device and method based on double-pulse power supply regulation and control. The water purification device comprises a water inlet mechanism, a flow stabilization mechanism, a membrane bioreactor assembly, a light source and an aeration mechanism, a ceramic MBR membrane assembly is arranged in the membrane bioreactor assembly, and a perforated aeration strip and an aeration pump are configured to maintain stable hydraulic power and oxygen dissolving conditions; and meanwhile, a double-pulse electrical stimulation module is introduced to periodically regulate and control the membrane surface algal-bacterial symbiotic biological membrane. The dipulse electrical stimulation module induces EPS degradation related enzyme gene expression up-regulation in a biological membrane through electrical stimulation, structural reconstruction and degradation of an extracellular polymeric substance (EPS) are promoted, and the membrane surface adhesion and densification trend is reduced; and by enhancing interface mass transfer and microenvironment updating, the bacterial-algae symbiotic biological membrane forms a more loose and porous three-dimensional skeleton, the biological membrane generation and succession process is mediated from the source, and a'low resistance-high flux 'membrane surface structure is constructed. Therefore, gravity-driven high-membrane flux operation can be realized without additional pressurization, the removal efficiency of nitrogen, phosphorus and organic matters in tail water is synchronously improved, and membrane pollution is remarkably relieved.

The invention relates to the technical field of mask production, and discloses a fixing clamp for mask production, which comprises a clamp seat for loading mask bodies, by starting an air pump, high-pressure air can enter through the bottom end of a fixing cylinder, and meanwhile, under the cooperation of a cleaning assembly, a plurality of clamp bodies can be lifted, so that the mask bodies can be cleaned; meanwhile, the sleeve can rotate and blow air to the top end of the clamp seat, so that the dust removal effect is achieved, the self-cleaning function can ensure that the mask plate fixing clamp can be effectively cleaned after being used every time, the cleanliness of the mask plate can be kept, the mask plate is prevented from being polluted by pollutants, and the service life of the mask plate fixing clamp is prolonged. According to the mask plate fixing clamp with the self-cleaning function, extra cleaning steps and cost can be reduced, due to the fact that the clamp can be self-cleaned, pollutants on the clamp do not need to be removed through extra cleaning agents or equipment, the cleaning process is simplified, the cleaning cost is reduced, and the cleaning efficiency is improved. And meanwhile, potential damage to the mask plate due to improper cleaning is avoided.