1770results about "Foam dispersion/prevention" patented technology

The invention relates to the technical field of fine chemical engineering preparations, in particular to an environment-friendly non-silicon defoaming agent as well as a preparation method and application thereof. 3.6 to 5.1 parts of a defoaming aid; 0.24 to 0.35 part of a thickening agent; 2-3 parts of a dispersing agent; 2.6 to 3.5 parts of an emulsifier; 18 to 25.3 parts of an organic solvent; 65 to 82 parts of deionized water; wherein the polyether ester A and the polyether ester B with amphiphilic structures in the polyether ester can be quickly spread on the surface of foam, carry hydrophobic components to permeate a liquid membrane and accelerate foam breakage, and the defoaming assistant A and the defoaming assistant B further promote the defoaming and foam inhibition performance of the defoaming agent by reducing competitive adsorption to the defoaming agent and delaying release of active molecules. Compared with the prior art, the method has a wide application prospect.

The invention discloses a scrap iron removing device for waste cutting fluid separation, and relates to the technical field of machine tool machining, the scrap iron removing device comprises a settling tank, an L-shaped flow slowing plate is arranged on the inner side of the settling tank, a liquid flowing channel exists between one side of the L-shaped flow slowing plate and the inner side wall of the settling tank, and inclined plates are fixedly arranged on the lower side of the L-shaped flow slowing plate at equal intervals; the inclined plates incline downwards towards the sides away from the liquid flowing channel, overflow notches are formed in the sides, away from the liquid flowing channel, of the settling tanks, the overflow notches are formed in the upper sides of the inclined plates, and defoaming mechanisms are arranged on the lower sides of the L-shaped flow slowing plates; in a narrow space between the inclined plates, the defoaming net shakes repeatedly, the surface tension of foam and an oil film is quickly destroyed through segmentation and friction effects, and metal scraps released by foam breakage quickly sink under the action of the inclined plates, so that the purposes of quickly eliminating the foam and precipitating the metal scraps are achieved, the settling time is greatly shortened, and the service life of the defoaming net is prolonged. And the foam is prevented from entraining a large amount of metal chippings to enter a follow-up circulating pipeline to increase follow-up pressure.

The invention discloses a movable trolley for secondary grouting of a double-shield TBM, and belongs to the technical field of tunnel construction equipment. In order to solve the problems of non-uniform slurry mixing, inaccurate grouting pressure control, low automation degree and the like of existing double-shield TBM secondary grouting equipment, a slurry storage system and a grouting execution system are borne through a movable supporting table, and the slurry storage system achieves slurry storage and stirring regulation and control through double storage tanks, a spiral stirring paddle and a liquid level monitoring module; the grouting execution system achieves accurate pressure control through cooperation of a double-outlet grouting pump, a pressure sensor and a frequency converter. The central controller receives liquid level and pressure signals and intelligently regulates and controls the rotating speed of the stirring paddle, the rotating speed of the grouting pump and switching of the slurry storage tank. The movable trolley is mainly used for secondary grouting operation in the double-shield TBM construction process, the grouting efficiency and quality can be improved, and tunnel construction safety and stability are guaranteed.

The invention discloses a mineral oil defoaming agent for water-based paint ink and a preparation method of the mineral oil defoaming agent, and belongs to the technical field of defoaming agents. A hydroxyl-terminated butenyl polymer and hydrogen-containing silicone oil are used for preparing a modified butenyl polymer under the condition of a platinum catalyst; and preparing the mineral oil defoaming agent from the obtained modified butenyl polymer, mineral oil, white carbon black, fatty acid metal soap and wax under the action of an emulsifier. The mineral oil defoaming agent prepared by the invention not only has the advantage of high defoaming speed of a conventional mineral oil defoaming agent, but also has improved compatibility and stability, is a defoaming agent with strong defoaming ability, good foam inhibition performance, good compatibility with paint and ink and reduced coating shrinkage phenomenon, and has good application prospects in the fields of paint and ink. The method has a wide application prospect especially in the field of home decoration water-based paint ink.

This invention discloses a dynamic defoaming device for a stirring system, belonging to the technical field of wet-process phosphoric acid production equipment. It includes a reaction tank, a stirring shaft, stirring blades, a three-phase feeder, a liquid overflow port, an overflow depth adjuster, an interface foam separator, a secondary foam separator, and a foam overflow port. The overflow depth adjuster is located on the inner wall of the reaction tank, with its upper end connected to the liquid overflow port and its lower end adjustablely positioned in the middle of the reaction tank. The interface foam separator is located within the reaction tank and matches the material liquid level. The secondary foam separator is located in the upper part of the reaction tank and maintains a set interval from the interface foam separator, forming a static foam space. This invention achieves efficient and thorough foam removal and precise separation of liquid and solid materials, effectively improving the purity of phosphoric acid products, production efficiency, and equipment operational stability.

The invention discloses a siloxane-polyether copolymer modified coking defoaming agent as well as a preparation method and application thereof, and belongs to the technical field of auxiliary chemicals. The preparation method comprises the following steps: synthesizing an epoxy group functionalized siloxane oligomer, preparing a modified siloxane-polyether copolymer matrix, constructing core-shell structure functionalized silicon dioxide in situ, and carrying out blending aftertreatment, wherein DCS and SIS linkage control is adopted in the whole process. In order to overcome the defects that the compatibility of siloxane and polyether is poor, nano silicon dioxide is easy to agglomerate and the high-temperature performance attenuation is fast in the existing coking defoaming agent, a molecular bridge mediated bonding and in-situ core-shell structure construction synergistic scheme is provided, the molecular-level compatibility of components is realized, the high-temperature stability and the lasting defoaming performance of the defoaming agent are improved, and the defoaming agent has a good application prospect. The defoaming agent is suitable for delayed coking process efficient defoaming.

The invention discloses an organic silicon composite solid defoaming agent for space station water treatment and a preparation method of the organic silicon composite solid defoaming agent, and relates to the technical field of defoaming agents. The organic silicon composite solid defoaming agent for space station water treatment comprises the following raw materials in parts by weight: 25-35 parts of polydimethylsiloxane, 5-10 parts of water-soluble silicone oil, 10-15 parts of white carbon black, 3-5 parts of an emulsifier, 3-4 parts of a dispersant and 25-35 parts of a carrier. The preparation method comprises the following steps: reacting 1H, 1H-perfluorohexylamine with epoxy chloropropane to generate an intermediate 1, reacting the intermediate 1 with lauryl amine to generate an intermediate 2, and reacting the intermediate 2 with amino-polyethylene glycol-carboxyl to obtain the emulsifier. The prepared organic silicon composite solid defoaming agent for space station water treatment has excellent defoaming and foam inhibition performance and good water dispersibility.

The invention belongs to the technical field of lithium batteries, and particularly relates to a composite defoaming agent as well as a preparation method and application thereof. The composite defoaming agent comprises an epoxypropane-ethylene oxide segmented copolymer, a ZIF-8 packaging material, a temperature-sensitive copolymer and a conductive synergist, the ZIF-8 packaging material comprises ZIF-8 and a modified organic silicon polymer packaged in the ZIF-8, and the modified organic silicon polymer contains fluorine ions. According to the invention, the ZIF-8 packaging material and the thermo-sensitive copolymer are adopted, and other components are combined, so that the gas content of the negative electrode slurry and the resistance amplification of a pole piece can be reduced, and the storage stability, the thermal stability and the defoaming response efficiency can be improved; the defoaming agent has a good defoaming effect and a slow release effect, can inhibit thermal migration, and avoids interface resistance rise and phase separation.

The present application provides an oil-gas separation apparatus capable of implementing complete degassing and methods. The apparatus comprises: a piston cylinder and a degassing cylinder, a degassing solenoid valve being arranged between the degassing cylinder and the piston cylinder, one end of the degassing solenoid valve extending into the interior of the piston cylinder, and the other end thereof being in communication with the degassing cylinder; a variable speed diaphragm pump, an air intake end thereof being in communication with the atmosphere and an air discharge end thereof being in communication with the degassing cylinder for drawing ambient air, and used for cleaning a gas path of the oil-gas separation apparatus, and providing power for the degassing cylinder, thereby replacing a design involving a carrier gas cylinder or a gas generator; and a main control module. According to the present application, the piston cylinder, the degassing cylinder, the degassing solenoid valve, and the variable speed diaphragm pump are integrated and are uniformly controlled by the main control module, so that high-efficiency oil and gas separation is implemented. A unique degassing control method and a concentration calculation method are designed, so that fast and efficient degassing is implemented, nearly complete degassing is achieved without correcting a degassing rate, a mathematical model for inverse calculation of an oil sample concentration on the basis of a gas concentration is simplified, and concentration conversion is convenient.

The utility model discloses a production device for comprehensive utilization of cyclopentadecanolide perfume production wastewater resources, which relates to the technical field of cyclopentadecanolide perfume production and comprises a pretreatment neutralization kettle, an acid-containing wastewater head tank and a 30% sodium hydroxide solution head tank. The acid-containing wastewater head tank and the 30% sodium hydroxide solution head tank are respectively connected with the pre-treatment neutralization kettle through pipelines, and the pre-treatment neutralization kettle is also connected with a low-temperature vacuum evaporator through a pipeline. And the method is not limited by brine concentration.

The invention discloses a phosphorus trichloride production reaction kettle with a defoaming structure, and relates to the technical field of reaction kettles. According to the phosphorus trichloride production reaction kettle with the defoaming structure, through cooperation of the obliquely-installed sawtooth plates and the protruding strip rings, during rotation, the sawtooth plates drive foam on the liquid level to move towards the periphery, in the movement process, the foam on the liquid level is separated from the protruding strip rings, and the foam on the liquid level is removed. The sawteeth at the top of the sawtooth plate are in contact with accumulated foam, so that part of the foam is broken, the unbroken foam outwards impacts the inner wall of the convex strip ring under the action of centrifugal force, so that the foam is in contact with the convex strips uniformly arranged on the inner wall of the inner convex ring, and compared with a smooth inner wall of a traditional reaction kettle, the contact area is reduced when the convex strips of the inner convex ring are in contact with the foam; and the pressure during impact is increased, so that the foam is broken under higher pressure, and the defoaming effect is improved.

The invention discloses a fast defoaming powder defoaming agent and a preparation method thereof, and relates to the technical field of defoaming agents. The powder defoaming agent is prepared from the following raw materials in parts by weight: 30 to 40 parts of polyether modified silicone oil, 2 to 5 parts of organic silicon emulsion, 3 to 6 parts of dispersing agent, 4 to 6 parts of emulsifying agent, 1 to 2 parts of thickening agent and 50 to 70 parts of porous carrier. The powder defoaming agent prepared by the invention has good defoaming and foam-inhibiting performance, dispersing performance and thermal stability.

The invention relates to the technical field of stirring tanks, and provides a stirring device for dairy product processing, the stirring device comprises a tank body, a stirring rod is vertically arranged in the tank body along the axis direction, and a track seat is arranged on the inner wall of the tank body along the axial direction; the collecting box is arranged in the radial direction of the tank body, one end of the collecting box is slidably arranged on the rail base, and the collecting box is located on the liquid level of the dairy product and used for storing floating foam generated when the dairy product is stirred; the scraping blocks are arranged on one side face of the collecting box at intervals in a swinging mode, the scraping blocks can float on the liquid level of dairy products, each scraping block can swing along with the height of the liquid level, and the scraping blocks are used for scraping floating foam on the liquid level and conveying the floating foam into the collecting box; the negative pressure adsorption part is arranged on the side wall of the tank body, is positioned above the collection box and is used for absorbing floating foam in the collection box. The technical problem that scraping is not thorough due to the fact that scraping plates rotating along with stirring rods are arranged at the upper positions of the stirring rods of most stirring equipment in the prior art is solved.

The present application discloses a kind of dispersing fast, low turbidity, high temperature and high pressure resistant, strong acid and strong alkali defoaming agent, which is prepared from the following components: 5-50% of white carbon black silica paste, 1-25% of capped polyether modified polysiloxane, 0.1-10% of spherical poly siesquioxane, 1-25% of compound polyether, 0.1-10% of thickening agent, 0.05-0.5% of sterilizing agent, and the balance of water, wherein the sum of the weight percentages of the components is 100%. The present application also provides a production process of the defoaming agent, which comprises the following steps: stirring the white carbon black silica paste, spherical poly siesquioxane and capped polyether modified polysiloxane with a homogenizer to mix them thoroughly, then adding the compound polyether, thickening agent and sterilizing agent, stirring them uniformly, and continuing to stir them rapidly with the homogenizer for 25-35 minutes to obtain the mixed uniform polyether modified polysiloxane defoaming agent. The purpose of the present application is to provide a defoaming agent with fast dispersion speed, low turbidity, high temperature and high pressure resistance, and strong acid and strong alkali resistance.

The utility model relates to the technical field of defoaming, and provides a two-end-supported physical defoaming device which comprises a defoaming impeller used for defoaming and a motor used for driving the defoaming impeller to rotate, an impeller connecting shaft of the defoaming impeller is coaxially connected with a motor shaft of the motor, and the defoaming impeller is connected with the motor shaft of the motor. A sliding bearing is arranged at the end, away from the motor, of the impeller connecting shaft, and the defoaming impeller is located between the sliding bearing and the motor. According to the two-end-supported physical defoaming device, foam can be physically eliminated through the defoaming impeller, the sliding bearing is installed at the tail end of the impeller connecting shaft, two-end supporting is formed by the sliding bearing and the bearing in the motor, and compared with center supporting, the two-end-supported physical defoaming device can better achieve the damping and supporting effects; in addition, the sliding bearing can be located in the suction pipeline, foam sucked by the impeller can be used for lubrication, the self-flushing effect is achieved, an external flushing water pipe is not needed, energy is saved, and installation and use are convenient.

The invention relates to the technical field of bean product processing, and discloses a defoaming device for bean product production and processing, the device comprises a base, a base plate and a discharging barrel, one side of the top of the base plate is fixedly provided with a device main body, one side of the device main body is fixedly provided with a processing cylinder, and the defoaming device further comprises an eliminating assembly arranged in the processing cylinder, vertical plate parts are symmetrically and fixedly connected to the top of the base, a feeding assembly is arranged between the two vertical plate parts, the eliminating assembly comprises a longitudinal plate fixedly installed on the upper portion of the interior of the processing barrel, a driving motor is fixedly installed at the top of the longitudinal plate, and a rotating shaft is fixedly connected to the output end of the driving motor; and a central fan blade and a side gear are fixedly connected to the outer side of the rotating shaft, so that the problems that only a small amount of large bubbles are punctured by the tip of the device, and most of the bubbles are still likely to remain on the liquid level position, so that the bubble eliminating effect is reduced, and the subsequent bean product processing quality and taste are influenced are solved.

The utility model discloses a desulfurization liquid foam tank negative pressure defoaming device which comprises a defoaming box and a vortex fan, one side of the bottom of the defoaming box is connected with a desulfurization regeneration tower through a liquid inlet pipe, and the other side of the bottom of the defoaming box is connected with a foam tank through a liquid discharge pipe. An air inlet of the vortex fan is connected with an air outlet hole in the top of the defoaming box through an air inlet pipe, an air outlet of the vortex fan is connected with a negative pressure tail gas pipeline through an air outlet pipe, and valves are arranged on the liquid discharge pipe, the air inlet pipe and the liquid inlet pipe. The defoaming box disclosed by the utility model is arranged between the desulfurization regeneration tower and the foam tank, bubbles at the upper part of foam liquid entering the defoaming box are broken by utilizing negative pressure and centrifugal force generated by the vortex fan, and the defoamed foam liquid enters the foam tank, so that the influence on the operation precision caused by a large amount of accumulated foams in the foam tank can be avoided, and the field operation environment is effectively improved.

The utility model discloses a degassing device and film deposition equipment thereof, the degassing device comprises a degassing pipe, a heating unit and a vibration unit, the heating unit is used for heating liquid flowing through the degassing pipe, the vibration unit is arranged on the outer side of the degassing pipe, and the degassing pipe is used for heating the liquid flowing through the degassing pipe. The vibration unit is used for vibrating liquid flowing through the degassing pipe so as to accelerate bubble precipitation. Wherein the degassing pipe is a material pipe fitting which can separate out gas but does not permeate liquid. The heating unit and the vibration unit are additionally arranged outside the degassing pipe, and the Teflon pipe fitting capable of separating out bubbles is adopted to heat and vibrate liquid flowing through the degassing pipe so as to quickly and efficiently separate out the bubbles, so that bubble residues in the liquid are reduced, and the detection accuracy of the external flow detection unit is improved. According to the thin film deposition equipment adopting the degassing device, the flow detection precision of the reaction source flowing through the degassing pipe can be improved, so that the control precision is higher, and the thin film deposition quality is better.

The invention discloses a defoaming agent for industrial automobile paint and a preparation method of the defoaming agent. The defoaming agent is prepared from the following raw materials in parts by mass: 20-40 parts of a star block polyether-siloxane copolymer; 10 to 25 parts of nano hydrophobic silicon dioxide aerogel; 30-70 parts of an alkylbenzene solvent (boiling point gt: 200 DEG C); 3 to 8 parts of epoxy group modified polyether siloxane; and 1 to 3 parts of polyether modified polydimethylsiloxane. The molecular weight range of the star block polyether-siloxane copolymer can effectively balance the defoaming property and compatibility, the siloxane chain segment of the star block polyether-siloxane copolymer destroys the elasticity of a foam film, and the siloxane chain segment cooperates with alkylbenzene to reduce local surface tension and accelerate foam rupture. The polyether chain segment and the siloxane chain segment have a synergistic effect, and the polyether chain segment adjusts hydrophilicity to adapt to different environments.

The invention discloses a graphene-organic silicon core-shell defoaming agent and a preparation method thereof.The defoaming agent is of a core-shell structure with graphene as a core and organic silicon as a shell, and the graphene and the organic silicon have a synergistic effect, so that the defoaming agent is good in monodispersity and can stably play a defoaming role at the high temperature. Preparing a graphene oxide dispersion liquid; meanwhile, a PDMS prepolymer is prepared, and the graphene oxide dispersion liquid is dropwise added into a PDMS prepolymer system, so that the organic silicon monomer is subjected to graft polymerization reaction on the surface of the graphene oxide. And then carrying out reduction treatment on the reaction product to convert the graphene oxide into reduced graphene oxide to form a core-shell structure, and carrying out centrifugal separation, washing and vacuum drying to obtain the graphene-organic silicon core-shell defoaming agent. The problems that an existing defoaming agent is poor in dispersity, weak in interface bonding force and insufficient in high temperature resistance in the high polymer material forming process are solved, and the defoaming efficiency and the product quality are improved.

The present application relates to the technical field of blade production, and particularly relates to a blade production oil immersion device, which comprises a soaking pool, a bottom plate, a lifting rod and a bearing plate and the like; the bottom of the soaking pool is provided with a supporting plate; a plurality of limiting parts are arranged on the supporting plate; one bottom plate is placed on each limiting part; two lifting rods are rotatably connected to each bottom plate; and a bearing plate for bearing a razor blade is movably connected to the two lifting rods. The present application drives the blade to be separated from the lower razor blade by lifting the lower edge of the notch upward, so as to ensure that the oil can fully soak into the gap between the layers of razor blades, significantly improve the oil immersion uniformity of the razor blade, and thus enhance the oil immersion effect. The limiting plate limits the support pipe, effectively blocks the upward force of the connecting frame from being transmitted to the bending section of the support pipe, and thus prevents the oil in the pipe wall from overflowing to the drain pipe area, which not only avoids the waste of oil resources, but also reduces the subsequent cleaning work intensity.

The utility model discloses a paddle for chemical stirring and defoaming, which belongs to the field of chemical equipment and comprises a movable platform. Two vertical frames are vertically arranged on the upper end face of the movable platform. Linear guide rails are vertically arranged on the side faces of the two vertical frames, two cross beams are further vertically installed between the two vertical frames, and a height adjusting assembly is installed between the two cross beams. According to the paddle for chemical stirring and defoaming disclosed by the utility model, the stirring flat steel which is transversely arranged and designed in a cross-shaped display manner can increase the shearing force in the stirring process, so that bubbles in liquid are more easily damaged, the generated shearing force can stir the bubbles on the liquid surface, the bubbles are broken, and gas escapes into air; therefore, defoaming and stirring are completed; by adjusting the length of the stirring flat steel, the adaptability to the chemical tank body can be further improved; a user can adjust the stirring height of the stirring transmission rod, so that the stirring dead zone in the chemical tank body can be effectively reduced, and the sufficient mixing of chemical raw materials is ensured.

The invention belongs to the technical field of magnesium desulfurization wastewater treatment, and particularly relates to a magnesium desulfurization wastewater evaporation concentration material transfer anti-crystallization blockage system which comprises an evaporation separator and crystallizers, a circulation pipeline is arranged between an inlet and an outlet of a material transfer pump, and a material transfer pipeline is connected between a material transfer regulating valve and the crystallizers. The circulating pipeline and the branch pipelines are respectively communicated with the material transferring pipeline through branch pipelines, and the circulating pipeline and the branch pipelines are detachable metal hoses; a steam inner pipe is arranged in the material transferring pipeline, a heat preservation layer is arranged outside the material transferring pipeline, and opening degrees of the material transferring adjusting valve and the steam adjusting valve are in linkage control. Compared with the prior art, the device has the beneficial effects that effective anti-blocking prevention and emergency treatment are carried out on materials which are long in material transfer pipeline, rapid in concentration and temperature change and easy to crystallize in multi-point material transfer, cooperative control over the temperature of the separator feed liquid and the temperature of the material transfer pipe feed liquid is achieved, and concentration and temperature monitoring is carried out on the output feed liquid; materials always flow in the material transfer pipeline, and continuous production operation is guaranteed.

The invention discloses a bubble discharging device for a silica gel coating composite material, and relates to the technical field of bubble discharging of coating materials, the bubble discharging device comprises a tank body, a transparent observation window is arranged on one side of the tank body, a discharging pipe is connected to the lower portion of one side of the tank body in a penetrating mode, and an adding pipe is connected to one side of the top of the tank body in a penetrating mode; a through groove is formed in the center of the top of the tank body in a penetrating mode, the premixing tank is arranged above the tank body, two sets of supporting legs are symmetrically installed at the bottom of the premixing tank, the bottom ends of the supporting legs are fixedly connected with the tank body, and a feeding pipe is connected to the upper portion of one side of the premixing tank in a penetrating mode; according to the defoaming device for the silica gel coating material, when the silica gel coating material is defoamed, the coating material and the defoaming agent can be pre-tested, the applicability of the defoaming agent can be judged by observing whether mixing or layering is generated after the coating material and the defoaming agent are premixed, and if the defoaming agent is not applicable, the tested defoaming agent can be quickly discharged.

The invention relates to preparation equipment of high-purity electronic-grade molybdenum hexafluoride, which comprises a molybdenum hexafluoride reactor used for heating molybdenum powder and fluorine gas to react; the cyclone separator is connected to the discharge end of the molybdenum hexafluoride reactor and is used for carrying out gas-solid separation on the molybdenum hexafluoride original gas to obtain crude molybdenum hexafluoride gas; the variable-pressure condensation filter is connected to the gas outlet end of the cyclone separator, and the variable-pressure condensation filter is used for carrying out variable-pressure condensation on the molybdenum hexafluoride crude gas and filtering impurities solidified after condensation to obtain molybdenum hexafluoride crude liquid; the light component removal tower is connected to the liquid outlet end of the variable-pressure condensation filter, and hydrogen fluoride is removed from the molybdenum hexafluoride crude product liquid by the light component removal tower; the liquid inlet end of the bubble breaking rectifying tower is connected to the bottom of the light component removal tower, and the bubble breaking rectifying tower is used for purifying molybdenum hexafluoride in the molybdenum hexafluoride crude product liquid to obtain the electronic grade molybdenum hexafluoride.

The invention discloses an organic silicon defoaming composition for an anti-cancer drug and a preparation method of the organic silicon defoaming composition, and relates to the technical field of defoaming agents. The organic silicon defoaming composition is prepared from the following raw materials in parts by weight: 60 to 70 parts of polyether modified silicone oil, 10 to 15 parts of fumed silica, 4 to 6 parts of a surfactant, 3 to 6 parts of a dispersing agent, 1 to 2 parts of a thickening agent, 5 to 8 parts of a stabilizer and 20 to 30 parts of deionized water. The organic silicon defoaming composition prepared by the invention has good defoaming and foam-inhibiting performance, dispersing performance and high-temperature stability.

To provide a defoaming agent capable of exhibiting excellent defoaming properties (foam breaking and foam suppressing effects) and excellent surface finishing properties (cissing and foam breaking marks).SOLUTION: And at least one hydrophobic substance (C) selected from the group consisting of hydrophobic silica, fatty acid metal salts, fatty acid amides, and waxes, wherein the content of the liquid glycerin fatty acid ester (A) is 4 to 49% by weight, the content of the liquid alkylene oxide adduct (B) is 51 to 96% by weight, and the content of the hydrophobic substance (C) is 0.1 to 15% by weight, based on the weight of the liquid glycerin fatty acid ester (A) and the liquid alkylene oxide adduct (B).SELECTED DRAWING: None

The utility model relates to the technical field of magnesite flotation, in particular to a magnesite flotation tailing defoaming device, which is characterized in that a feed port and a discharge port are respectively arranged at the upper end and the lower end of a defoaming tank in a penetrating manner; the top end of the rotating rod is rotationally connected into the defoaming tank through a bearing, the motor is fixedly arranged on the top surface of the defoaming tank, the output end of the motor is connected with the end part of the rotating rod, the motor is connected with an external power supply, and defoaming paddles are fixedly arranged at the bottom end of the rotating rod; a plurality of drainage blades are fixedly arranged on the rotating rod at equal angles and are positioned above the defoaming paddles; the drainage tube is arranged on the rotating rod in a sleeving mode through a plurality of supporting rods, and the drainage blades are located in the drainage tube. The drainage assembly is arranged at the bottom end of the drainage pipe, and the defoaming paddle is located in the drainage assembly; according to the defoaming device, foam liquid is drained to the defoaming blades through the matching effect of the drainage blades and the drainage pipes, and foam can be effectively broken through special design in cooperation with the shapes and the materials of the blades, so that the defoaming efficiency is improved.

The invention discloses a polymeric ferric sulfate production filtering device and filtering method.The polymeric ferric sulfate production filtering device comprises a filtering box, a filtering base is fixed between the inner walls of the filtering box, a filtering cavity is formed in one side of the top of the filtering base, a plurality of filtering holes are formed in the bottom of the filtering base in a penetrating mode, and a foam puncturing static electricity removing mechanism is arranged on the filtering box; the invention relates to the technical field of polyferric sulfate production. According to the polymeric ferric sulfate production filtering device and filtering method, through the arrangement of the foam puncturing static electricity removing mechanism, the movement of the L-shaped rod is utilized to drive the stabs to move and puncture foams generated by a stirred polymeric ferric sulfate solution, positive and negative charges on the surface of a liquid film can be separated when the foams are broken, and the charges are transferred to the bottom wall of the filtering seat; through rolling of the static electricity eliminating roller, the static electricity eliminating roller generates charges opposite to the filter seat and the polymeric ferric sulfate colloid particles through an external high-voltage power supply, static electricity between the filter seat and the polymeric ferric sulfate colloid particles is neutralized, the static electricity adsorption force is weakened, and the filtering efficiency is greatly improved.