27results about How to "Good defoaming effect" patented technology

The application provides a continuous foam rectification separation and purification device, which comprises a rectification tower and a defoaming cylinder; a stirring assembly is arranged in the defoaming cylinder, and the stirring assembly is connected with a driving mechanism; the stirring assembly comprises a circular pipe; a plurality of uniformly distributed cross pipes are fixedly connected around the circular pipe, and the cross pipes are provided with a plurality of liquid outlet holes in the length direction; a lifting mechanism is installed in the defoaming cylinder and connected with a connecting pipe fixedly connected with the top end of the circular pipe; a conveying mechanism is used for conveying a defoaming agent into the circular pipe; a feeding assembly is installed at the top inlet of the defoaming cylinder; the feeding assembly comprises an inner cylinder, an outer cylinder and an expansion pipe, a spiral channel is arranged between the inner cylinder and the outer cylinder, a plurality of micropores are arranged on the inner cylinder wall and communicated with the inner cylinder, and the plurality of micropores are uniformly distributed in the length direction of the channel; the expansion pipe is connected with the inner cylinder, and the bottom end of the expansion pipe is rotationally and sealingly connected with the top end of the connecting pipe. The preliminary defoaming during feeding and the secondary defoaming in the defoaming cylinder improve the defoaming effect.

This utility model discloses a thickener foam elimination structure, comprising: a thickener treatment tank, a rake frame arranged within the thickener treatment tank, and multiple sets of scraper components vertically supported on the rake frame. The multiple sets of scraper components are arranged sequentially and at intervals along the circumference of the treatment tank, moving in response to the fluctuations in the slurry surface within the thickener treatment tank, thereby scraping the mineralized foam in the thickener treatment tank towards the center and causing it to accumulate. A thickener bridge is also erected above the thickener treatment tank, and a spray system is mounted on the thickener bridge. The spray system is used to spray the supernatant from the upper layer of the thickener treatment tank or externally supplied washing water onto the mineralized foam, driving the mineralized foam towards the center of the thickener treatment tank and simultaneously defoaming the foam. This novel structure effectively reduces processing costs, prevents mineralized foam from overflowing outwards through overflow outlets located on the outer periphery of the thickener treatment tank, and significantly reduces the amount of defoamed mineral particles carried away by the overflow.

The invention discloses a modified organic silicon defoaming agent as well as a preparation method and application thereof, and belongs to the field of papermaking defoaming agents. The preparation method comprises the following steps: firstly, carrying out addition reaction on hydrogen-containing silicone oil, alkyne and enol to obtain an alkyne modified organic silicon defoaming agent intermediate; performing high-temperature phase inversion emulsification on the alkyne modified organic silicon defoaming agent, docosanol, octadecanol and an emulsifier to obtain the alkyne modified organic silicon defoaming agent. The modified organic silicon defoaming agent obtained by the preparation method disclosed by the invention is applied to a papermaking section, not only can quickly eliminate foams on the surface of a system, but also can remove small bubbles attached to the surfaces of fine fibers in pulp, so that the gas content of a paper machine system is reduced, the operation efficiency of a paper machine is improved, and the modified organic silicon defoaming agent has the characteristics of no toxicity, no harm, simple process and the like.

The utility model relates to the technical field of dispersion tanks, and discloses a dispersion tank for fire retardant coating processing, which comprises a tank body, a first floating plate, a second floating plate, a plurality of connecting blocks, a connecting structure and two telescopic rods, a stirring structure is arranged in the tank body, a one-way structure is arranged at the vertical position of a rod body of the stirring structure, and the one-way structure is connected with the first floating plate. A scraping plate is fixedly arranged on one side of the one-way structure, the connecting blocks are connected with one another through connecting structures, the first floating plate is connected with the connecting block close to the center position, the second floating plate is connected with the connecting block close to the tank wall position, and defoaming needles are fixedly arranged on the bottom sides of the connecting blocks. And through the liquid level difference formed by the fireproof coating during stirring, the connecting blocks between the first floating plate and the second floating plate can be conveniently made to form a step type, the defoaming needles can be attached to the liquid level for defoaming, and the defoaming effect is improved.

The application discloses a wire mesh defoaming device and a drying tower thereof, and relates to the drying technology field.The wire mesh defoaming device comprises a mounting frame, a supporting cylinder is rotatably sleeved in the opening of the mounting frame, a defoaming wire mesh is bolt-connected to the opening on the surface of the supporting cylinder, a C-shaped frame is bolt-connected to the top of the mounting frame, a transmission box is bolt-connected to the top of the C-shaped frame, a rotating shaft is key-connected to the hole at the shaft center of the supporting cylinder, the top of the surface of the rotating shaft is rotatably sleeved with the hole of the C-shaped frame, a supporting rod is bolt-connected between the surface of the rotating shaft and the inner wall of the supporting cylinder, a connecting piece is bolt-connected to the right side of the bottom of the mounting frame, the droplets gathered on the surface of the defoaming wire mesh are thrown out by the centrifugal force generated by the rotation of the supporting cylinder, the defoaming efficiency is improved, and for the excessively viscous droplets, the defoaming wire mesh can be scraped by a scraping mechanism during the rotation, the droplets on the surface of the defoaming wire mesh are scraped off, and the defoaming effect is improved.

The application belongs to the technical field of defoaming agent preparation, and more particularly relates to a defoaming agent and a defoaming method thereof in petrochemical industry. The defoaming agent is a silicone oil defoaming agent, which comprises the following raw materials in parts by weight: 100-120 parts of dimethyl silicone oil, 6-9 parts of silica sol, 3-4 parts of chitosan, and 10-12 parts of emulsifier. The dimethyl silicone oil is first treated by allyl glycidyl ether and then grafted with tyrosine with an isoelectric point of 5.66. The silica sol is first treated by ammonia water and then surface-modified by hexamethyldisilazane. The pH of the defoaming agent is 7.0. The product obtained by the application has the advantages of high defoaming efficiency and short defoaming time.

The application discloses a kind of integrated equipment of licorice emulsification and extract preparation, including reaction tank, the inside of the reaction tank is nested with temperature control tank, and the bottom of temperature control tank is respectively provided with water inlet pipe and water outlet pipe, the inside of temperature control tank is fixedly installed with anticorrosion tank, and the bottom of anticorrosion tank is conical structure, the bottom of anticorrosion tank is fixedly installed with discharge valve, the bottom of reaction tank is fixedly installed with support frame.The application realizes high integration in structural design, by integrating each functional module, the number of equipment and supporting facilities investment are greatly reduced, while the floor area of the whole system is significantly reduced, thereby saving space resources, its inside adopts wall scraping design, and forms outer stator structure in combination with double-shaft stirring assembly, not only improves material flow efficiency, but also effectively enhances the shearing and mixing effect of emulsification process, so that emulsification effect is significantly improved.

The invention provides a can sealing machine pipeline system and method, and relates to the technical field of pop can filling production lines, the can sealing machine pipeline system comprises a new cleaning pipeline, a new replacement gas pipeline, a compressed air pipeline, an exhaust pipeline and a new defoaming pipeline, and the new cleaning pipeline is connected with the new replacement gas pipeline and the compressed air pipeline in parallel; the new defoaming pipeline is respectively communicated with the new cleaning pipeline and the new gas replacement pipeline; and the exhaust pipeline is arranged at the position of can sealing machine equipment. According to the cleaning device, all assemblies contaminated with filling materials in the can sealing machine equipment can be cleaned, meanwhile, a newly replaced gas pipeline can be cleaned, and the pipeline sanitation is improved; a new defoaming pipeline is matched with a new replacement gas pipeline for use, so that the replacement gas flow is subjected to precise closed-loop control, the defoaming effect is improved, and extra gas loss is avoided; and the exhaust pipeline is additionally arranged on a replacement occasion to extract redundant inert replacement gas out of the filling chamber, so that the content of the inert replacement gas in the filling chamber is reduced, and the life safety of operators in an operation area is guaranteed.

The utility model discloses a vertical vaporizer with a good defoaming effect, which comprises a vaporizer main body with a gas outlet at the top, a defoaming box is communicated with the gas outlet, a plurality of wire mesh defoaming discs are stacked in the defoaming box, and a driving mechanism for driving the wire mesh defoaming discs to rotate is arranged on the defoaming box. When gas carrying liquid foam passes through the wire mesh defoaming disc, the liquid foam is in contact with the wire meshes and is attached to the surfaces of the wire meshes, and the gas passes through gaps among the wire meshes, so that the gas is defoamed; through slow rotation of the wire mesh defoaming disc, the wire mesh can actively capture liquid foam, and the gas defoaming effect is improved; and through rapid rotation of the wire mesh defoaming disc, collected liquid foam can be thrown away through centrifugal force, so that cleaning of the wire mesh defoaming disc is realized, and the defoaming effect is improved.

This invention discloses a high-efficiency leveling and defoaming mechanism for self-leveling mortar, comprising a main body with an installation groove, wheels on the lower ends of both sides of the main body, a cover within the installation groove that slides within the groove, a first automatic telescopic rod at the upper end of the cover connected to the installation groove, a vacuum pump at the upper end of the cover with an air inlet connected to an air pipe, and a barometer inside the cover, a sealing ring at the lower end of the cover, and a control panel at the upper end of the main body. In this invention, the cover is pushed downwards by the first automatic telescopic rod, covering the self-leveling mortar laid on the ground. The sealing ring creates a relatively sealed environment. The vacuum pump operates to remove air from inside the cover, reducing the air pressure. As the air pressure decreases, air bubbles in the mortar expand, float to the surface, and burst, effectively removing air bubbles from the self-leveling mortar and ensuring the construction effect of the self-leveling mortar.

The utility model belongs to the technical field of sewage treatment, and particularly discloses a defoaming agent mixing device which comprises a water conveying pipe, a chemical conveying pipe and a mixer, and the mixer is communicated with a water inlet, a chemical inlet and a liquid outlet; one end of the water conveying pipe is communicated with the water inlet of the mixer, and the other end of the water conveying pipe is communicated with the water supply unit; one end of the medicine conveying pipe is communicated with the medicine inlet of the mixer, and the other end of the medicine conveying pipe is communicated with the medicine supply unit; a liquid outlet of the mixer is communicated with a liquid outlet pipe, and water and a defoaming agent are mixed by the mixer through the water conveying pipe and the chemical conveying pipe respectively and then are discharged from the liquid outlet pipe. According to the utility model, medicaments and water can be uniformly mixed and then discharged into reclaimed water for defoaming, so that the medicaments are prevented from being solidified into blocks, and the defoaming effect is improved.

The utility model belongs to silica gel label production technical field, concretely speaking is a kind of silica gel label production defoaming device, including bottom plate, the water tank is fixedly connected in the bottom plate top, the water tank inside is equipped with a plurality of electric heating tube, the water tank side wall is connected with drain pipe, the valve is installed on the drain pipe, the water tank inside is placed with storage barrel, the hydraulic cylinder is installed in the bottom plate top, the hydraulic cylinder top is fixedly connected with fixed plate, the vacuum pump is installed in the fixed plate top, the storage barrel top is connected with bucket cover, the fixed block is installed on the bucket cover, by the above structure, set up water tank and storage barrel and bucket cover, use vacuum pump to generate vacuum effect, can heat the water in water tank by electric heating tube, to make hot water to the silica gel in storage barrel heat softening reduce its viscosity, can make the bubble in silica gel more easily rise to upper layer break, to improve the vacuum defoaming effect of silica gel raw materials.

The utility model discloses a mineral separation flotation machine with a defoaming structure, and relates to the technical field of flotation machines, the mineral separation flotation machine comprises a flotation box, a foam storage box and a stirring mechanism, the stirring mechanism is arranged on the inner side of the flotation box, the stirring mechanism comprises a first stirring frame connected with the flotation box through a bearing, a rotating frame is arranged on the outer side of the first stirring frame, and a second stirring frame is arranged on the outer side of the rotating frame. And the interior of the rotating frame is connected with stirring frames II which are arranged at equal angles through bearings. According to the flotation machine for mineral separation, the first stirring frame is used for driving the rotating piece, the displacement frame and the defoaming frame are driven to horizontally move in a reciprocating mode, an automatic overturning and dumping mechanism with lifting of the displacement frame and guiding of the second inclined groove is combined, full coverage of a foam collecting path is achieved, foam accumulation caused by airflow dead angles is avoided, and the defoaming mechanism is driven through original power of the flotation machine; and in addition, the bionic tipping design is adopted, so that the foam is gently poured into the foam storage box at a controlled angle, and the falling rate of mineral particles is reduced.

The utility model relates to fermentation tank technical field discloses a kind of flexible fermentation tank bubble digestion device, including fermentation tank, be provided with feeding port, exhaust port, discharge port on the fermentation tank, shaft is provided on the tank body, multiple connecting pieces are installed on the shaft, flexible defoaming strip is installed on the connecting piece, it is characterized by: the defoaming strip includes hose, the hose is the hollow tubular of both ends not closed, multiple defoaming holes are arranged on its wall face;Multiple the defoaming hole is horizontally arranged.The utility model is by being provided with hose, defoaming ring and corresponding positional relationship, so that the defoaming effect is further improved, and fermentation quality is greatly improved;By being provided with connecting piece, so that defoaming strip can be quickly disassembled, local replacement;It has foolproof effect simultaneously;By setting the same distribution direction and rotation direction of defoaming strip, prevent the end of adjacent defoaming strip from colliding, interference.

The utility model relates to a vertical static hot -blast goods cabinet for defoaming of sealant, it includes the cabinet body, goods shelf, hot -blast module, goods shelf is constituted by circulating frame and a plurality of support frame. Hot -blast module can carry out blowing hot air to the cabinet body, to improve internal temperature, in high temperature environment, the mobility of sealant will obviously improve, the viscosity reduces, is favorable to increase the rate of bubble floating, improves the effect of defoaming, simultaneously circulating frame can drive support frame to and fro circulation, the slight vibration in the process also can promote defoaming process, improve the defoaming rate.

The utility model discloses defoaming equipment for display glass plate production, which belongs to the technical field of display glass plate production and comprises a group of linear modules, a top linear module is vertically distributed obliquely above a bottom linear module, a mounting frame is mounted at the sliding end of each linear module, and an air cylinder is fixedly mounted on each mounting frame. The output end of the air cylinder penetrates through the mounting frame and is fixedly connected with a mounting plate; a defoaming piece for glass plate defoaming is arranged on the top mounting plate; the defoaming piece comprises a supporting rod fixedly connected to the top mounting plate, and a sealing cover is slidably connected to the outer side of the supporting rod. According to the utility model, through the group of pressing rods in the sealing cover, the supporting rod which moves downwards repeatedly can push the pressing rods on the group of rotating rods through the sliding block to push and extrude the surface of the glass plate repeatedly in the vacuum pumping process of the sealing cover covering the glass plate, so that bubbles generated on the glass plate can be removed more quickly in cooperation with a vacuum environment; the defoaming efficiency of the glass plate is improved.

Through the following steps (1) to (5), a nozzle plate is manufactured having at least a nozzle cone (12) and a straight connecting path (13) in the nozzle hole. Step 1 (S-1): A step of preparing a single crystal silicon substrate (1) with a crystal orientation of (100) on its surface; Step 2 (S-2): A step of forming a mask layer (2) on the surface of the single crystal silicon substrate; Step 3 (S-3): A step of forming an opening pattern 3 on the mask layer; Step 4 (S-4): A step of forming a through hole 4 by dry etching through the surface of the single crystal silicon substrate located under the opening pattern; Step 5 (S-5): A step of enlarging the through hole by anisotropic wet etching of the single crystal silicon substrate, thereby forming a nozzle cone and a straight connecting path continuous with the nozzle cone.

This invention belongs to the field of pharmaceutical preparations, and particularly relates to a dimethicone emulsion and its preparation method. The preparation method provided by this invention includes the following steps: a) grinding and mixing dimethicone and silica at 100-140°C to obtain an oil phase mixture; b) mixing sodium saccharin, ethylparaben, and water, and then mixing with sodium carboxymethyl cellulose to obtain an aqueous phase mixture; c) mixing the oil phase mixture, polysorbate 80, and sorbitan oleate, and then mixing with a portion of the aqueous phase mixture, followed by homogenization to obtain a primary emulsion; d) mixing the remaining aqueous phase mixture, an ethanol solution of butylated hydroxytoluene, and a fragrance, and then mixing with the primary emulsion, finally adding water to make up to a fixed volume and mixing to obtain the dimethicone emulsion. The preparation method provided by this invention has a short production cycle and high production efficiency, and the resulting dimethicone emulsion product has excellent defoaming ability and quality stability.

The utility model relates to a micro-arc oxidation bubble eliminating device which comprises a bubble removing tank, an opening is formed in the top of the bubble removing tank, a liquid inlet mechanism is arranged above one side of the bubble removing tank, a liquid outlet mechanism is arranged below one side of the bubble removing tank, a centrifugal mechanism is arranged at the bottom of the bubble removing tank, and an ultrasonic oscillation module is arranged on the side portion of the bubble removing tank. The liquid inlet mechanism is used for conveying and putting electrolyte in the electrolyte pool into the bubble removing tank, the centrifugal mechanism is used for centrifugally stirring the electrolyte in the bubble removing tank to form rotational flow, the ultrasonic oscillation module is used for generating vibration to promote cavitation of micro bubbles, and the liquid outlet mechanism is used for enabling the electrolyte subjected to bubble removing to flow back into the electrolyte pool. Therefore, the circulating defoaming treatment of the electrolyte is realized. Electrolyte is input into the defoaming tank through the liquid inlet mechanism, rotational flow is formed through stirring of the centrifugal mechanism to enable bubbles to be gathered, high-frequency vibration generated by the ultrasonic vibration module is matched to enable tiny bubbles to be cavitated and broken, centrifugal separation and ultrasonic vibration are in synergistic effect, defoaming efficiency is remarkably improved, and tiny bubble residues are avoided.

This invention provides an adhesive composition for energy storage devices. The electrode slurry has excellent defoaming and adhesion properties, and can produce energy storage device electrodes that suppress electrode expansion during repeated charging and discharging, thereby improving the cycle life characteristics of energy storage devices. The adhesive composition for storage devices of the present invention contains a polymer (A) and a liquid medium (B). When the total number of repeating units contained in the polymer (A) is set to 100% by mass, the polymer (A) contains 1 to 40% by mass of repeating units (a1) from unsaturated carboxylic acids and 5 to 40% by mass of repeating units (a2) from α,β-unsaturated nitrile compounds, and satisfies the following conditions: <Condition> 0.30g of the polymer (A) is taken as solids and placed in a petri dish with a diameter of 5cm. It is dried in a constant temperature bath at 130°C for 30 minutes. 0.30g of the resulting film is cut into 5mm wide pieces. All the slices of the resulting film are immersed in 30mL of a 0.01M sodium hydroxide aqueous solution at pH 12 and stirred in a warm water bath at 65°C for 2 hours. After stirring, the components dissolved to the aqueous layer are separated and dried. The content of nitrogen element in the dried solid is set as N. B Let the content of nitrogen element in the polymer (A) be defined as N. A When, its proportion (N) B / N A The value is below 0.10.

The utility model relates to the technical field of coating machines, in particular to an air knife coating machine coating solution bubble removing device which comprises a tank body, and a bubble removing cavity and a storage cavity are formed in the upper side and the lower side of the interior of the tank body respectively. A stirring assembly for defoaming is rotationally mounted in the defoaming cavity; the outer wall of the transmission shaft is in coaxial key connection with a plurality of cutters for breaking bubbles; by arranging the defoaming cavity and the stirring assembly in the defoaming cavity and cooperating with the wavy stirring blades, under driving of the first motor, the rotating shaft drives the stirring rod and the stirring blades to rotate, the coating solution is fully stirred, the disturbance and shearing effects are enhanced, and stubborn bubbles and tiny bubbles in the high-viscosity solution can be more effectively broken. After preliminary defoaming, a lifting pump conveys the solution to a defoaming part, a filter screen between an inner ring body and an outer ring body is used for filtering and defoaming, and meanwhile, a second motor drives a transmission shaft and a cutter to further smash large bubbles and small bubbles intercepted on the filter screen.

The application provides a lithium battery slurry weight-reducing metering conveying system and relates to the technical field of lithium battery manufacturing. The lithium battery slurry weight-reducing metering conveying system comprises at least two static tanks, two material conveying assemblies, a transfer assembly, a static sensor and a controller, a feeding valve is arranged on the feeding port of each static tank, a discharging valve is arranged on the discharging port of each static tank, the material conveying assemblies can transport lithium battery slurry, each feeding valve is connected with the discharging port of a homogenizer through one of the two material conveying assemblies, each discharging valve is connected with the feeding port of the transfer assembly through the other of the two material conveying assemblies, the static sensor can detect the amount of lithium battery slurry in each static tank, the static sensor is electrically connected with the controller and can feed back the detection result to the controller, each feeding valve and each discharging valve are electrically connected with the controller, and the controller can control the opening and closing of each feeding valve and each discharging valve according to the detection result of the static sensor. The lithium battery slurry weight-reducing metering conveying system has the effect of improving the production efficiency of lithium batteries.

The utility model discloses a bubble removing mechanism for a glass furnace, which belongs to the technical field of glass furnaces, and comprises an outer tank and an inner container body positioned in the outer tank, the bottom of the outer tank is fixedly connected with a support frame, and the upper part of the left side of the outer tank is provided with a feed valve port communicated with the inner container body; a discharging valve port communicated with the inner container body is formed in the bottom of the outer tank, an exhaust valve port communicated with the inner container body is formed in the top of the outer tank, a lifting stirring mechanism is arranged in the upper middle area of the inner container body, and a housing is fixedly connected to the lower portion of the right side of the outer tank. According to the device, the clarifying agent feeding pipe, the rotating pipe, the liquid outlet head, the lifting stirring mechanism and the rotating mechanism are arranged, so that the device combines two modes of mechanical stirring and clarifying agent chemical reaction to carry out bubble removal treatment on the glass stock solution, the working effect is better, and the device is of a sealing structure, so that the glass stock solution can be prevented from being polluted by external impurities; the processing quality is guaranteed.

A cyclone defoamer for a fermenter, characterized by comprising a disc baffle and a cyclone defoaming ring. The disc baffle is located at the center of the cyclone defoamer, and the cyclone defoaming ring is fixed to the outer periphery of the disc baffle. The disc baffle is coaxially fixed to the central stirring shaft of the fermenter. The cyclone defoaming ring has a multi-layered butterfly structure, with the interior of the butterfly shell divided into multiple cyclone channels by circumferentially distributed baffles. Each layer of the cyclone defoaming ring has a radial foam inlet on its inner periphery and a radial outlet on its outer periphery. Several foam inlet windows are axially opened on the upper surface, and baffles are provided at the foam inlet windows to facilitate foam entry. This invention features a reasonable structure, good defoaming effect, high efficiency and energy saving, meets GMP requirements, and is easy to clean and sterilize, does not accumulate material, and has no risk of contamination.

The utility model discloses an adhesive production oscillation bubble removing device, including base and fixed on the base support, the movable installation of support has the bubble -removing box, and the bubble -removing box bottom is connected with oscillation bubble -removing mechanism, oscillation bubble -removing mechanism includes drive part, rotation axis, swing board, fixed sleeve, bearing plate, connecting rod, sealing cover and vacuum unit. The utility model has the advantages that through being located the bubble -removing box bottom connection has oscillation bubble -removing mechanism, adopts vacuum unit first to the bubble -removing box carries out vacuumizing processing, and then, drive part is swung oscillation through connecting rod and drives the bubble -removing box on bearing plate, comes the mobility of adhesive in vacuum environment to increase, thereby makes the bubble of adhesive completely escape, improves the bubble -removing effect.

This utility model discloses a defoaming device for preparing hyaluronic acid hydrogel, comprising a defoaming tank, a defoaming filter plate, and a vent valve. The defoaming tank has a hollow internal cavity structure. The vent valve is located on the top surface of the defoaming tank and communicates with the internal cavity through a mounting hole. An inlet and an outlet are provided on the top and bottom surfaces of the defoaming tank, respectively connected to an inlet pipe and an outlet pipe. A defoaming filter plate is installed inside the defoaming tank, with its edge connected to the inner wall of the defoaming tank. The defoaming filter plate has an array of distributed through holes. This utility model provides a defoaming device that achieves good defoaming effect through multi-stage physical defoaming, eliminating the need for chemical defoamers and keeping equipment costs controllable. Specifically, the defoaming tank with a defoaming filter plate and a flow-delay plate, combined with the flow rate of the mixed liquid, achieves a good defoaming effect. The defoaming filter plate and flow-delay plate are equipped with spikes to further puncture air bubbles in the mixed liquid, enhancing the defoaming effect.

The utility model discloses a cutting fluid residue filtering tank which aims to overcome the defect that an existing cutting fluid treatment device cannot solve the contradiction between defoaming and precipitation. The filter residue tank comprises a filter residue tank body, a fine filtration module and a defoaming module, the fine filtration module comprises a water collecting pipe arranged at the top of the filter residue tank body and a plurality of filter membrane wires communicated with the water collecting pipe, the filter residue tank body is a closed tank body, and the defoaming module comprises a negative pressure device, a negative pressure pipe and a bubble breaking net. The negative pressure pipe is communicated with the negative pressure device and the top of the residue filtering tank body, the foam breaking net is arranged at the set height position of the preset liquid level of the residue filtering tank body, and the negative pressure device enables foam in the residue filtering tank body to expand and break automatically or break when meeting the foam breaking net by generating negative pressure. A negative pressure defoaming mode is matched with a filter membrane structure, so that two filtering modes of natural gravity precipitation and filter membrane filtration are realized, and defoaming and precipitation are solved through negative pressure defoaming.