136results about "Foam dispersion/prevention" patented technology

This invention discloses a silicone emulsion defoamer for textiles and its preparation method. It is prepared from the following components by weight percentage: 5%-40% polysiloxane silicone paste, 0.3%-20% silicone polyether, 1%-20% emulsifier, 0.1%-5% thickener, 0.05%-0.3% bactericide, and the balance being water, with the sum of the weight percentages of all components being 100%. The stability of the emulsion under high temperature and high pressure environments is improved by using cross-linked polysiloxane silicone paste and silicone polyether with a specific structure. The cross-linked polysiloxane silicone paste provides superior defoaming and foam-suppressing performance. Utilizing the intertwined spatial structure of the high-viscosity silicone composition and the silicone polyether, the defoamer prepared by this method not only exhibits good stability under high temperature and alkaline environments but also significantly improves its late-stage foam-suppressing performance in sizing. More importantly, it enhances the compatibility between the silicone emulsion defoamer and the sizing.

The utility model discloses a water and fertilizer mixing device for oil crop planting relates to water and fertilizer mixing device technical field, the utility model discloses a mixing box is provided with defoaming mechanism and stirring mechanism on, the bottom intercommunication of mixing box is provided with the discharge pipe of valve, defoaming mechanism includes the baffle fixedly connected on the inner wall of mixing box, a plurality of water inlets are seted up on the baffle, the baffle is penetrated with pivot no.

The present application relates to photovoltaic module processing technical field, specifically to a kind of photovoltaic module laminator and its defoaming device.Photovoltaic module laminator includes laminator box body, the laminator box body is divided into vacuum cavity, defoaming cavity and curing cavity, defoaming cavity is equipped with defoaming device, the defoaming device includes power mechanism, is fixed in the defoaming cavity;Lever mechanism is connected to power mechanism, downwardly acts on photovoltaic module;The top of power mechanism is equipped with moving ring, and the moving ring carries out variable-diameter circumferential motion;The present application sets up separate defoaming cavity in laminator, after photovoltaic module is laminated, using defoaming device in defoaming cavity to carry out extrusion defoaming to it, the lever mechanism specially provided in the defoaming device can make the pressure rod variable-diameter circumferential motion on the surface of photovoltaic module, and the pressure rod carries out helical motion from the center of photovoltaic module to all around, cooperate with the rotary motion of pressure rod itself, can gradually extrude the bubble on the surface of photovoltaic module from all around, guarantee photovoltaic module finished product quality.

Highly active defoamer compositions which are storage stable and maintain their defoaming efficiency for extended times even in harsh chemical environments are prepared by an aqueous base-catalyzed condensation of a hydroxy-terminated polyorganosiloxane, a silicone resin bearing hydroxy groups or hydroxy-reactive groups, and hydrophilic silica. The condensation takes place at a temperature of 80°C to less than 130°C, and the reaction viscosity is monitored to determine an appropriate time to add the hydrophilic silica.

The application discloses an anti-cancer innovative drug preparation high-efficiency defoaming composition and a preparation method thereof, and relates to the technical field of defoaming agents. The anti-cancer innovative drug preparation high-efficiency defoaming composition comprises the following raw materials in parts by weight: 28-32 parts of polysiloxane, 5-6 parts of a surfactant, 1-2 parts of a dispersing agent, 5-8 parts of fumed silica, 1-1.5 parts of a silane coupling agent and 20-30 parts of deionized water. The high-efficiency defoaming composition prepared by the application has excellent defoaming and bubble inhibiting performance and dispersion stability.

The application relates to the technical field of gas-liquid separation, and provides a device and a method for reducing hydrogen content in oxygen by using a multistage gas-liquid separation technology, which comprises a separator, the inner cavity of the separator is sequentially divided into a first separation cavity and a second separation cavity from top to bottom, and the first separation cavity is communicated with the second separation cavity; a gas-liquid cyclone inner part is arranged in the first separation cavity; a strong centrifugal force field generated by the gas-liquid cyclone inner part is used for making micron-sized bubbles in a hydrogen-electrolyte mixture coalesce and separate, and free-state fine bubbles in the hydrogen-electrolyte mixture are efficiently removed; a throttling device is arranged between the first separation cavity and the second separation cavity, over-saturated dissolved hydrogen in hydrogen-rich electrolyte after first separation in the first separation cavity is depressurized through the throttling device, the hydrogen is actively precipitated by using static pressure drop, and separation is completed in the second cavity, so that the purpose of reducing hydrogen content in oxygen is achieved. The two-stage progressive separation structure significantly improves the hydrogen separation efficiency, and reduces the hydrogen content in oxygen to a low level.

This invention discloses a multi-functional integrated structure for a washing machine, including an air collection box module, a defoaming module, and a spraying module. The air collection box module has several non-intersecting air inlet and exhaust chambers. An air inlet bellows is connected to each air inlet chamber, and an exhaust bellows is connected to each exhaust chamber. An NTC sensing sensor is integrated into the exhaust bellows. The spraying module includes a spray pipe and a spray nozzle integrated into the air collection box module, with the spray pipe inserted into the spray nozzle. The defoaming module includes a defoaming sponge and a filter sponge. When the NTC sensing sensor detects foam passing through the exhaust bellows, water is introduced into the spray pipe, simultaneously cooperating with the defoaming module to perform spray defoaming. This invention uses the air collection box module as its core carrier, integrating air intake and exhaust, spray defoaming, and blue oxygen washing and care functions into one unit for the first time. This reduces redundant components, saves internal space, minimizes the impact on overall machine structure stacking, and facilitates compatibility with different models.

The application discloses a kind of momentum defoaming based deep gas purification device and method, it is related to chemical equipment technical field, including tank, dynamic distributor, with several momentum defoaming ware momentum defoaming module, fiber condensation module and rotary liquid removal module, tank is equipped with oil gas inlet, liquid phase outlet, gas phase outlet, oil gas inlet is connected dynamic distributor by pipeline, dynamic distributor end is connected with momentum defoaming module;Momentum defoaming module top is equipped with fiber module and rotary liquid removal module in sequence.This application utilizes the momentum of gas-liquid mixture and the baffle in momentum defoaming ware to collide, break up foam liquid drop, and make liquid drop move to the edge of baffle, under the driving of subsequent airflow, discharge, realize the elimination of foam liquid drop;The remaining micro liquid drop is coalesced and grown into larger droplet by fiber condensation module, finally enters rotary liquid removal module, realizes the efficient separation of liquid drop and gas under the action of centrifugal field, reaches the effect of gas deep purification.

The present application relates to heat exchange medium energy-saving additive technical field, specifically for a kind of energy-saving additive for heat exchange system and its preparation method and application, the energy-saving additive includes following weight parts component: main surfactant: 2-20 parts;Scale inhibitor: 0-30 parts;Coupling agent: 0-30 parts;Regulator: 0-30 parts;Surface tension control agent: 0-20 parts;Auxiliary surfactant: 0-10 parts;Dispersing agent: 20-30 parts;Defoaming agent: 0-10 parts.By the scientific compounding and synergistic effect of main surfactant and other surface active components, the surface tension of water-based heat exchange medium can be significantly reduced to a very low level of 27.68mN / m.Greatly improve the wettability and spreadability of medium in the inner wall of heat exchanger, so that it can quickly cover the heat exchange surface to form a uniform thin liquid film, effectively eliminate or thin the liquid film thermal resistance that hinders heat transfer.

The application provides an environment-friendly high-efficiency defoaming agent for an anaerobic digestion system, and belongs to the technical field of defoaming agents.The application comprises the following components in percentage by mass: 15-20% of a solid defoaming component, 35-50% of an oil-state defoaming agent component, 30-40% of water, 4% of a composite emulsifier and 1% of a thickening agent; the solid defoaming component is one of calcium soap, glycerol monostearate and biocarbon of biogas residue; the oil-state defoaming agent component is glycerol trioleate or mineral oil; the compounding relationship of the solid defoaming component and the oil-state defoaming agent component does not comprise the compounding of calcium soap and mineral oil.The application is prepared by using components without biological toxicity and containing no silicon, and the obtained environment-friendly high-efficiency defoaming agent for the anaerobic digestion system has no biological toxicity, does not damage the gas production efficiency of the anaerobic digestion system, has high foam inhibition effect and foam reduction rate, and does not pollute the biogas combustion system after use.

This utility model discloses a filtration device for zirconia slurry, including a filtration assembly comprising three filter chambers, a fine filter screen, and a coarse filter screen, with the fine and coarse filter screens fixed between two filter chambers respectively. A flow-diverting assembly includes a spiral guide plate, a sealing strip, a material passage hole, a side plate, and a baffle. The spiral guide plate is fixed inside the uppermost filter chamber, the sealing strip is fixed to the outer ring of the spiral guide plate and conforms to the inner wall of the filter chamber, the material passage hole is opened on the spiral guide plate, the side plate is fixed to the inner ring of the spiral guide plate, and the baffle is fixed at the uppermost end of the spiral guide plate. This utility model solves the problem that when zirconia slurry is poured from one side of the uppermost filter chamber, excessive local pressure on the filter screen can occur during production, causing the filter screen to deform and affecting filtration quality. Additionally, air bubbles in the slurry can adhere to the filter screen, affecting filtration efficiency.

The utility model relates to building garbage processing technical field, specifically disclose a kind of building garbage stirring and mixing device, it includes mixing tank, and mixing tank bottom is fixed and is communicated with the material hopper.When the rotation of the shaft also drives helical vane rotation, the raw material at the bottom of mixing tank is transported to the top of cylinder when helical vane rotates, after raw material is transported to the top of cylinder and slides from conical material guide disc, due to the setting of multiple distribution rods, raw material can be segmented, so that the bubble inside raw material is broken;When crossbar rotates also drive triangular plate, broken material rod rotation, broken material rod can further segment raw material when rotating in gap, further break the bubble inside raw material;After raw material is transported to conical material guide disc, raw material slides downward on conical material guide disc, at this time, raw material is sprayed defoaming agent by spray head, so that defoaming agent can fully contact with raw material, improve the effect of defoaming.

The utility model discloses a kind of defoaming devices for laundry detergent production, including two stirring units, and a plurality of stirring pipes are fixedly connected and communicated between the two stirring units;Stirring unit includes pressure tank, and drive assembly is fixedly installed on the top surface of pressure tank, and drive assembly is drivingly connected with piston plate, and piston plate is sealingly and slidably connected with pressure tank;Drive assembly is fixedly connected with a plurality of spray machines for blowing hot air;Piston plate top surface is provided with mounting hole, and window is sealingly and fixedly installed in mounting hole, for observing the inner cavity of pressure tank;The cavity between piston plate and the bottom surface of the inner cavity of pressure tank and stirring pipe is used for containing the raw materials of laundry detergent production;Stirring pipe inner cavity is provided with stirrer for stirring the raw materials of laundry detergent production.The utility model can meet the double needs of efficient stirring and effective defoaming in the process of laundry detergent production.

The utility model belongs to the technical field of reaction kettle, concretely relates to a hot melt adhesive processing reaction kettle, including the reaction kettle main part, the bottom axial of reaction kettle main part is provided with the driving element, the movable end seal of driving element penetrates into the bottom axial connection transmission rod of reaction kettle main part, the fixed sleeve of the circumferential side of transmission rod is equipped with the stirring rod, the circumferential side of transmission rod is swingly provided with the suspension defoaming subassembly that can suspend on the raw material liquid level in reaction kettle main part and do the circular motion, the utility model discloses the same magnetic setting between first magnet and second magnet makes the follower above the floating piece can suspend with the raw liquid surface, and there is a small gap between the raw liquid, and does not directly contact the raw liquid surface, and then when the driving element drives transmission rod to rotate, the driving element does not need to overcome the adhesive force of raw liquid, thereby effectively reducing the load of driving element, to improve its service life.

The utility model discloses a filter screen cleaning mechanism for environmental protection engineering wastewater treatment device, including aeration tank, fine mesh, wastewater treatment device body and mobile device, mobile device is fixed in the both sides of aeration tank, fine mesh fixed mounting is in the inboard of mobile device, wastewater treatment device body fixed mounting is in the left side of aeration tank. The utility model discloses a regulating rod is set up, and the angle of cleaning component can be adjusted to the user through regulating rod, and then the cleaning component is fixed through the fixing component, so that the cleaning component can clean the fine mesh, and the effect of cleaning is reached, the device needs the fine mesh to filter when using, and the impurities in wastewater will be blocked in the inside of fine mesh when filtering, because the structure that does not have convenient cleaning to fine mesh can lead to the fine mesh blockage and reduce the filtering efficiency, and there is certain limited problem.

This invention provides an ultrasonic defoaming device for wastewater treatment outlets, belonging to the field of wastewater treatment technology. It includes an arc-shaped frame with a support frame slidably connected to its top wall. The device further includes a drive assembly comprising a bidirectional screw rotatably connected to the outer wall of the support frame, a drive handle fixedly connected to the outer wall of the bidirectional screw, and a slider threadedly connected to the outer wall of the bidirectional screw, the slider being slidably connected to the support frame; a clamping assembly disposed on the outer wall of the arc-shaped frame, cooperating with the drive assembly; and an adaptive floating defoaming assembly disposed on the outer wall of the arc-shaped frame. In this invention, the adaptive floating defoaming assembly automatically adjusts the position of the ultrasonic defoamer according to the water level, ensuring that the ultrasonic defoamer remains in the optimal defoaming position even when the water level at the outlet fluctuates, guaranteeing stable defoaming performance and avoiding incomplete defoaming due to water level changes.

The application discloses a polypeptide fractionation equipment, which comprises a shell, a partition plate, a pretreatment mechanism, an alarm device, a first membrane filtration assembly and a second membrane filtration assembly; the upper and lower arranged cover plate and the shell are screwed into a hollow cuboid structure, and the partition plate is vertically arranged in the shell and spaced apart left and right, and the shell is divided into a left chamber, a liquid storage chamber and a right chamber from left to right through the partition plate; the pretreatment mechanism is arranged in the left chamber, a chute is arranged on the left partition plate, and mixed polypeptide liquid is delivered to the liquid storage chamber through the chute; the alarm device is arranged in the liquid storage chamber, and a circulating pump, the first membrane filtration assembly, a second pump and the second membrane filtration assembly are sequentially arranged in the right chamber from top to bottom, the circulating pump pumps the mixed polypeptide liquid in the liquid storage chamber into the first membrane filtration assembly for first separation, and then the second pump pumps the mixed polypeptide liquid into the second membrane filtration assembly for second separation. The hollow fiber membrane filtration pipe and the ultrafiltration membrane in the application are different in molecular weight, and the fractionation effect of the mixed polypeptide liquid can be realized.

This invention belongs to the field of electrochemical deoxygenation technology, specifically relating to an electrochemical oxygen atmosphere control system and method. The system, from bottom to top, includes a porous bottom cover, a first hydrophobic and breathable membrane, an oxygen-consuming cathode, a liquid-conducting diaphragm, an oxygen-evolving anode, a second hydrophobic and breathable membrane, and a porous top cover. Each component layer forms a zero-gap contact through the clamping force of the outer shell, enabling the device to achieve an ultra-thin thickness. The liquid-conducting diaphragm has a transverse liquid-conducting groove extending to the external electrolyte chamber, utilizing capillary action to achieve rapid electrolyte replenishment and eliminate local hot spots. Through the coupling design between the hydrophobic and breathable membrane and the electrode interface, oxygen generated by the oxygen-evolving anode directly penetrates and overflows in the form of gas molecules, effectively suppressing bubble formation and accumulation in traditional electrolysis processes, and significantly reducing the ohmic resistance of the interface and operating energy consumption. This invention features an extremely thin structure, high reaction efficiency, and no bubble interference, making it suitable for precise oxygen concentration control in spaces such as refrigerators and precision storage environments.

The application discloses an IGCC crude coal gas dust removal and purification process and device, and particularly relates to the technical field of crude coal gas dust removal and purification, and the dust removal and purification process comprises the following steps: step one, using a liquid pump to deliver the washing liquid to circulate in the heat exchange pipe and the liquid storage tank; step two, delivering the IGCC crude coal gas to the heat exchange tank, and then to the cyclone filter for primary filtration; step three, delivering the crude coal gas in step two to the scrubber for secondary filtration; and step four, using the waste water filter to filter the waste water for continuous use.The application completes the dust removal and purification of the IGCC crude coal gas by the cooperation of the cyclone filter and the scrubber, and has good dust removal and purification effect; and the heat exchange mechanism is arranged to heat the washing liquid by the heat of the IGCC crude coal gas, so that the viscosity and the surface activity of the washing liquid can be reduced, the mixing effect of the washing liquid and the crude coal gas can be improved, the dust removal and purification effect can be further improved, the heat of the crude coal gas can be recycled and utilized, the energy consumption is reduced, and the application has environmental protection.

This utility model discloses a mixer for saturated steam condensate and subcooled water, belonging to the technical field of mixer devices. The mixer for saturated steam condensate and subcooled water includes: a shell; a first tube and a second tube fixedly connected to both sides of the shell, the first and second tubes being symmetrically arranged; a water inlet pipe fixedly connected to the shell; a mounting plate fixedly connected inside the shell, with multiple sets of heat exchange tubes fixedly connected to the mounting plate; and a distribution section detachably connected to the shell, the distribution section including a first distribution plate and a second distribution plate, the first and second distribution plates being fixedly connected, and both the first and second distribution plates having distribution holes. This utility model, through the double-layer distribution hole structure of the first and second distribution plates, divides large bubbles in the saturated steam condensate into smaller bubbles, and, combined with the gradual cooling design of the heat exchange tubes, allows the bubbles to burst slowly and in batches within the tube, dispersing and releasing energy, thus avoiding violent vibrations caused by concentrated bursting.

This utility model discloses a foam drilling integrated logging engineering parameter collector, relating to the field of oil and gas exploration technology. It includes a main unit, a processing unit and a detection unit disposed within the main unit, and a filter unit disposed above the main unit. The processing unit includes an isolation plate installed inside the main unit, dividing it into an impact zone and a buffer zone; an air-liquid inlet pipe installed on the side wall of the main unit and extending into the impact zone; and a liquid discharge component disposed on the side of the main unit. This utility model is a foam drilling integrated logging engineering parameter collector. Through the processing and filtration units, it achieves the cleaning of the fine-mesh filter screen, avoids clogging, ensures the normal discharge of escaping gas, and improves the accuracy of detection data.

The present invention relates to a method for inhibiting foam formation in a process comprising the step of adding to the process mixture an effective amount of a foam control agent, the foam control agent having the formula RO(EO) n (PO) m H, where R is a straight chain hydrocarbon radical having 12 to 18 carbon atoms, EO is ethylene oxide, PO is propylene oxide, n can be any integer from 2 to 9, and m can be any integer from 8 to 19. The compounds may further be characterized in that the molecular weight of R is 8 to 29 percent by weight of the compound. These compositions have been found to be superior in controlling foam formation over conventional defoamers in fermentations, preferably amino acid fermentations and enzymatic fermentations, more preferably lysine, MSG, and glucose oxidase fermentations.

This invention discloses a reagent bubble removal device for use in clinical laboratories, comprising: a main body attached to the top and sides of the reagent kit; an ultrasonic module, a floating actuator, and a vibration motor mounted on the main body; the ultrasonic module being positioned at the top; the actuator being slidably connected to the main body and positioned on the side of the reagent kit; and the vibration motor being fixedly mounted on the main body at the bottom of the actuator; the ultrasonic module containing an ultrasonic probe and a control unit, with a battery inside the control unit, and a charging port for charging the battery outside the ultrasonic module. This bubble removal device, attached to the side wall of the reagent kit, avoids interfering with the normal reagent extraction process. Compared to traditional methods, this device removes bubbles through ultrasonic waves and physical scraping, offering more precise and thorough bubble removal while preventing secondary bubble formation and improving the accuracy of reagent extraction.

This utility model relates to the technical field of mixing devices, specifically to a mixing device for a container opening, comprising a cover plate, a mixing frame, and a drive mechanism. A limiting bracket is slidably connected to the cover plate, and a hanging part is provided at one end of the limiting bracket away from the cover plate. The mixing frame passes through the cover plate, with an operating part on one side and a mixing part on the other side of the cover plate. The drive mechanism can be detachably connected to the operating part. This mixing device for a container opening, by providing a cover plate with a limiting bracket that adapts to the container opening, can stably support the mixing frame on the container, providing a suitable mixing device for the container. In use, the drive mechanism can be connected to the operating part to realize the rotation of the mixing frame, thereby achieving the mixing of the medicine inside the container. It saves time and effort, has high mixing efficiency, and good effect.

The application provides a defoaming agent conveying system and relates to the field of strip cleaning. In the technical scheme, when it is detected that the thickness value of the foam in the liquid storage barrel is high, the first infusion device is triggered to be turned on, and the first infusion device conveys the defoaming agent stored in the liquid storage tank to the liquid storage barrel, so that the defoaming agent injected into the liquid storage barrel is consistent with the thickness value of the foam, and the defoaming agent waste is reduced on the basis of eliminating the foam in the liquid storage barrel.

The utility model relates to a kind of gas-liquid mixed high-efficiency reaction kettle, it includes tank body, stirring mechanism and aeration mechanism, stirring mechanism includes motor, stirring shaft and stirring rod, motor is fixedly connected on head, the output end of motor is connected the stirring shaft, stirring rod is set on stirring shaft, stirring shaft and stirring rod are all set to hollow, and stirring shaft and stirring rod are communicated, gas outlet is provided on stirring rod, defoaming mechanism is provided on stirring rod, the defoaming mechanism includes bearing, connecting ring, rammer, rammer is annular array along the axis of connecting ring in the outer wall of connecting ring, at least two defoaming mechanisms are set on each stirring rod with interval, when motor drives stirring shaft to rotate, stirring rod also rotates with defoaming mechanism, when connecting ring rotates in circumference, under the action of centrifugal force, connecting ring occurs rotation, rammer on connecting ring rotates, break into several fine bubbles when gas bubble produced when gas outlet discharges gas by rammer, prevent the problem of a large number of gas bubble up.

This utility model discloses a defoaming device for laundry detergent production and processing, including a base. An electric push rod is fixedly connected to the upper end of the base. A mounting rod is fixedly connected to one side of the electric push rod. A mounting groove is formed on one side of the mounting rod, and a first motor is fixedly connected inside the mounting groove. A threaded rod is fixedly connected to the output shaft of the first motor. A threaded block is threadedly connected to the outer surface of the threaded rod. A mounting bracket is fixedly connected to one side of the threaded block. A second motor is fixedly connected to the upper end of the mounting bracket. A bidirectional lead screw is fixedly connected to the output shaft of the second motor, and a moving block is threadedly connected to the outer surface of the bidirectional lead screw. By setting the electric push rod, the defoaming spike can be moved left and right. Through the first motor, threaded rod, threaded block, and mounting bracket, the defoaming spike can be moved up and down. This allows for defoaming of laundry detergent in different mixing tanks, saving production costs.

The utility model provides a kind of wind power gear oil on-line monitoring system, including oil body processing device, gas analysis unit;Oil body processing device includes shell, first cavity is equipped in shell, stirring mechanism is installed in first cavity, degassing port is equipped in shell top and is communicated with first cavity, the side of first cavity is equipped with oil inlet and oil outlet respectively, and oil body processing device is connected in the circulation line of wind turbine generator system gear box by oil inlet and oil outlet;Ultrasonic vibration unit is equipped between stirring mechanism and oil outlet;Gas analysis unit is connected with degassing port, for detecting the gas component and concentration that enter from degassing port.Working, oil body is under the action of ultrasonic vibration unit and stirring mechanism, carries out sufficient degassing, and then detects gas component and concentration by gas analysis unit and exports the data obtained by monitoring to outside, realizes the monitoring of gas in the gear oil in the gear box of wind turbine generator system.

The application discloses a mixing device for adhesive proportioning, and belongs to the field of adhesive processing. The mixing device comprises a reaction kettle, a cover arranged on the reaction kettle, a motor arranged on the cover, a stirring rod fixedly installed on the output end of the motor and extending into the reaction kettle, and a filtering mechanism arranged on the cover. The filtering mechanism comprises a filtering cavity arranged on the cover, a surrounding fence in the shape of a ring fixedly installed on the filtering cavity, a cover plate movably installed on the surrounding fence, and a filter screen fixedly installed in the surrounding fence and matched with the filtering cavity. The mixing device is characterized in that: the glue powder is poured on the filter screen, then the cover plate is covered, and then the motor is started to drive the stirring rod to rotate, the stirring rod drives the scraping strip to rotate, and the scraping strip scrapes the glue powder on the surface of the filter screen in the filtering cavity, so that the qualified powder falls into the reaction kettle to be mixed with the glue solution, thereby realizing self-filtering of the device, eliminating the need for additional processing in advance, effectively improving the product quality, and ensuring the production efficiency.

This utility model discloses a defoaming spray device, including a filter tank, a scraping mechanism, a spraying mechanism, and a driving mechanism. The scraping mechanism includes a scraper, and the spraying mechanism includes a spray pipe, a water inlet pipe, and nozzles. The bottom of the scraper contacts the surface of the filter tank, and the nozzles are positioned above the scraper. Each nozzle is connected to the water inlet pipe. This utility model removes a large amount of foam impurities accumulated in the liquid by using a scraper to remove impurities from the surface of the liquid in the filter tank; it defoams the foam in the filter tank by using a spraying device; and it drives the scraper and spraying device to move back and forth in the filter tank, eliminating the need for workers to clean the accumulated impurities in the liquid in the filter tank that cannot be defoamed, thus resulting in low construction costs.