42results about How to "Achieve defoaming effect" patented technology

The invention discloses a pneumatic self-circulation animal cell culture bioreactor and an application method thereof. The bioreactor is characterized by comprising a large tank, a small tank located in the large tank, a magnetic stirring system located at the bottom of the large tank, a heating system and a controlling system, wherein a sealing cover is arranged at the upper end of the large tank, jackets connected with the heating system are arranged on two sides of the large tank, and a highest liquid level sensor of the large tank is arranged at the upper part in the large tank; and a sealing head is arranged at the upper end of the small tank, an opening is formed in the lower end, the sealing head is fixedly connected in a sealing manner with the sealing cover through a breathing pipe, the upper end of the breathing pipe penetrates out of the sealing cover and is connected with a vacuum air pump and an air pressure pump respectively, the lower end penetrates out of the sealing head and enters the small tank, a cavity used for accommodating a cell carrier is defined by two up-and-down horizontal stainless steel wire mesh boards in the middle of the small tank and the inner wall of the small tank, an upper liquid level sensor of the small tank is arranged above the cavity, and a lower liquid level sensor of the small tank is arranged below the cavity. The pneumatic self-circulation animal cell culture bioreactor has the advantages of good air tightness, simplicity in operation, low contamination rate, good cell quality and high yield.

The invention discloses a slit type die head for coating lithium ion battery fluid. The slit type die head comprises an upper die head, a lower die head and a die head gasket, wherein a slit outlet is formed in a slit between the front ends of the upper die head and the lower die head, a feed opening is formed in the back end of the upper die head, and a fine tuning screw rod which is used for adjusting the opening height of the slit outlet is arranged on the top of the front end of the upper die head; a liquid storage cavity and a pressure stabilizing cavity are formed in the top end surface of the lower die head along the length direction of the top end surface of the lower die head, and the liquid storage cavity and the pressure stabilizing cavity are connected by virtue of a flow stabilizing platform; the feed opening communicates with the liquid storage cavity by virtue of a feed flow channel. According to the slit type die head, remaining bubbles in fluid slurry are effectively eliminated, the fluid flowability of different positions is improved, the height of the slit outlet can be adjusted, different types of fluid can be coated, the extended-foil defect of coating is eliminated, the uniform coating thickness of pole pieces is guaranteed, and the qualified rate of products is increased.

The invention provides an emulsion type fluorine-containing organosilicone defoaming agent for an oil and aqueous two-phase system and a preparation method thereof, wherein the defoaming agent includes the following components: polyether and acrylate co-modified fluorine-containing silicone oil, silicon paste, silicon resin, an emulsifier, a thickener and water. The defoaming and foam inhibition performance of an aqueous phase and an oil phase are improved by introducing the silicon resin and a fluorine-containing group into the system. When the defoaming agent is used in the aqueous phase system, solubilization of the silicone oil in the aqueous-phase system can be effectively inhibited, the defoaming and foam inhibition performance is improved, and the high-temperature strong alkaline resistance can be improved. When the defoaming agent is used in the oil phase system, the oil resistance of dimethicone can be significantly increased, and the defoaming agent becomes a highly efficientdefoaming agent in raw oil, lubricating oil, organic solvents and other oil-phase systems.

The invention relates to the technical field of desulfurization treatment and discloses a compounded antifoamer, a preparation method therefor and an application of the compounded antifoamer. The compounded antifoamer comprises the following ingredients in parts by weight: 5-10 parts of active component, 2-6 parts of emulsifier, 1-5 parts of nano-silica, 0.5-2 parts of thickener and 77-91.5 partsof deionized water, wherein the active component is prepared through mixing at least two of polyether, siloxane and modified siloxane. According to the compounded antifoamer disclosed by the invention, the height of a foam layer is reduced greatly, and the problems of desulfurizing agent solution loss and desulfurizing agent desulfurization efficiency decrease caused by foam entraining are solved.In addition, discovered by experiments, the compounded antifoamer disclosed by the invention can be further used for improving adsorption capacity of a desulfurizing agent to hydrogen sulfide and promoting recovery of consumed dissolved oxygen in a solvent system, and the increase of dissolved oxygen is beneficial to regeneration of the desulfurizing agent, so that the desulfurization efficiencyof the desulfurizing agent is further effectively increased.

The invention discloses a waterborne mold release capable of eliminating air bubbles on a concrete surface. The waterborne mold release is prepared from the following raw materials in percentage by mass: 20-40% of dimethyl silicon oil, 0.05-0.25% of Span-20, 0.10-0.30% of Tween-20, 0.05-0.07% of sodium dodecyl sulfate, 0.05-2.0% of compound modified component and the balance of water; the compoundmodified component comprises tributyl phosphate and ethylparaben. The waterborne mold release disclosed by the invention is a milk white liquid, is good in stability, free of pollution to the environment, capable of improving the durability and beauty of steam-cured concrete and free of corrosion to reinforcing steel bars; and the waterborne mold release is simple in preparation method and greatly reduced in cost as comparison with other products in the same industry, can be used after being diluted with water to a certain proportion and can solve the problem of excessive air bubbles on a concrete molding surface with extremely low economic cost.

The present invention discloses an antifoaming device used for biological fermentation. The device comprises a fermentation tank and a stirring shaft, wherein a stationary cylinder with a stationary cavity is fixed on the inner top wall surface of the fermentation tank, an exhaust pipe communicated with the stationary cavity is formed on the sidewall surface of the stationary cylinder, the lower part of the stirring shaft penetrates from the stationary cavity of the stationary cylinder, a rotating device with a rotating cavity is peripherally fixed on the stirring shaft, the upper part of therotating device is located in the stationary cavity of the stationary cylinder, the upper sidewall surface of the rotating device is equipped with at least 2 through holes, the lower part of the rotating device extends out of the stationary cavity, and the lower sidewall surface of the rotating device is equipped with a gas-liquid separation device. The antifoaming device provided by the invention can be used for antifoaming in the ventilation and stirring fermentation processes widely applied in the fermentation production of medicaments, foods and chemical products, thus reducing the escapeloss of fermentation liquid and saving antifoaming agent.

The invention discloses a construction method for reducing surface bubbles of aluminum alloy formwork concrete. The construction method comprises the following steps that Tween20, sodium dodecyl sulfate and water are prepared into a first mixed solution, and simethicone and sorbitan monolaurate are uniformly stirred until the mixed solution is milky white to prepare a second mixed solution; the first mixed solution is slowly added into the second mixed solution, adding is carried out while stirring until the first mixed solution is completely added, then a compound modified additive is added,uniformly stirring and mixing are carried out to obtain a bubble eliminating release agent, the bubble eliminating release agent is directly sprayed on the surface of a formwork, and then concrete ispoured; and the surface tension of foam is changed through the bubble removing release agent, so that small bubbles are gathered into large bubbles, the bubbles are broken to achieve the defoaming effect. The preparation method of the bubble removing release agent is simple, the cost is low, and the problem that the surface bubbles of the aluminum alloy formwork concrete are too many is solved with low cost.

The invention relates to high-resolution printing low-temperature conductive silver paste and a preparation method thereof. The high-resolution printing low-temperature conductive silver paste comprises the following components in parts by weight: 45 to 50 parts of nano spherical silver powder, 10 to 15 parts of nano rod-like silver powder, 15 to 20 parts of polyurethane resin, 5 to 10 parts of divalent acid ester, 5 to 10 parts of propylene glycol methyl ether acetate, 5 to 10 parts of isophorone, 0.2 to 0.5 part of polyethylene wax, 0.2 to 0.5 part of dimethyl siloxane, 0.2 to 0.5 part of fumed silica, and 0.1 to 0.5 part of flaky graphite. The production process mainly comprises nine steps of resin carrier premixing, powder heat treatment, burdening, high-speed dispersion, three-rollergrinding, filtering, finished product detection, homogeneous stirring and canning. Compared with the prior art, the conductive silver paste has the advantages of low curing temperature, high resolution and the like.

The invention relates to conductive ink for a transfer printing process and a preparation method of the conductive ink. The conductive ink comprises the following components in parts by weight: 50-55 parts of flake silver powder, 15-20 parts of nano spherical silver powder, 10-15 parts of saturated polyester resin, 5-10 parts of thermoplastic polycarbonate, 10-15 parts of dibasic acid ester, 2-5 parts of propylene glycol methyl ether acetate, 0.2-0.5 part of polyethylene wax, 0.2-0.5 part of organic silicon, 0.05-0.1 part of a silane coupling agent, 0.2-0.5 part of fumed silica and 0.1-0.5 part of flake graphite. The preparation method comprises the steps of resin carrier premixing, powder heat processing, burdening, high-speed dispersion, three-roller grinding, filtering, finished product detection, homogeneous stirring and canning. Compared with the prior art, the conductive ink has the advantages of low curing temperature, high printing ink degumming rate, good wear resistance, high printing precision and the like.

The invention belongs to the field of fermentation, in particular to a fermentation tank with a defoaming function. The fermentation tank comprises a tank body, and the bottom end of the tank body isfixedly connected with a plurality of upright posts. An air outlet is formed in the side wall of the tank body, and a discharge hole is formed in the bottom end of the tank body. The top end of the tank body is fixedly connected with a feeding channel. A control panel in sliding connection with the inner side wall of the tank body and the feeding channel is arranged in the tank body. The bottom end of the control panel is fixedly connected with a plurality of vertical control rods which are symmetrically arranged relative to the axis of the control panel. The inner wall of the tank body is fixedly connected with a plurality of horizontally-arranged fixing rods, the other ends of the fixing rods are fixedly connected with a defoamer, the defoamer comprises a sleeve, an upper sliding plate fixedly connected with the control rod is arranged in the sleeve, the bottom end of the upper sliding plate is fixedly connected with a spring, and the bottom end of the spring is fixedly connected with a lower sliding plate. By arranging the defoamer, the effect of reducing the air pressure in the defoamer to crush foam in the defoamer can be achieved when the air pressure in the tank body pushesthe control panel to move.

The invention discloses waterborne polyurethane paint with high stability, and relates to the technical field of waterborne paint. The waterborne polyurethane paint is prepared from the following ingredients: modified waterborne polyurethane emulsion, polyethylene glycol, nanometer calcium carbonate, leveling agents, propylene glycol monomethyl ether acetate, aluminum triphosphate, pigments and deionized water. The prepared waterborne polyurethane paint has a good foam-inhibiting effect.

The invention relates to conductive silver paste for a 5G mobile phone antenna and a preparation method thereof. The conductive silver paste comprises the following components in parts by weight: 45-50 parts of flake silver powder, 5-10 parts of nanorod silver powder, 2-5 parts of superfine diamond powder, 10-15 parts of phenoxy resin, 5-10 parts of alicyclic epoxy resin, 5-10 parts of propylene glycol methyl ether acetate, 5-10 parts of isophorone, 0.5-1 part of a cationic curing agent, 0.2-0.5 part of fumed silica and 0.1-0.5 part of superfine flake graphite. The preparation method comprises the steps of resin carrier premixing, powder heat treatment, burdening, high-speed dispersion, three-roller grinding, filtering, finished product detection, homogeneous stirring and canning. Compared with the prior art, the conductive silver paste has the advantages of being low in curing temperature, high in printing resolution, good in conductivity, high in hardness, good in bonding strength and wear resistance, environmentally friendly and the like.

The invention discloses a food processor with a good spill-proof effect. The food processor comprises a base and a stirring cup arranged on the base, a motor and a circuit board are arranged in the base; the stirring cup comprises a cup body and a cup cover; a crushing cutter is arranged in cup body, the motor drives the crushing cutter, the cup cover comprises an upper cover and a lower cover; the lower cover comprises a lower cover top wall, a lower cover side wall and a sealing ring; at least part of the side wall of the lower cover extends into the cup body; the sealing ring is arranged between the side wall of the lower cover and the cup body; a through hole is formed in the top wall of the lower cover; the through hole extends downwards to form a splash-proof cylinder; an upward surrounding edge is arranged on the edge of the top wall of the lower cover; the upper cover covers the surrounding edge; wherein an anti-overflow cavity is defined between the upper cover and the lower cover, the anti-overflow cavity is provided with a first slit, the upper cover is provided with an exhaust hole communicated with the outside, foam in the cup body enters the anti-overflow cavity through the splash-proof cylinder and forms liquid after being extruded and broken by the first slit in the anti-overflow cavity, and the liquid flows back to the cup body through the first slit and the splash-proof cylinder under the action of gravity.

The invention provides a reaction kettle with a defoaming function, and mainly relates to the field of reaction equipment. The reaction kettle with the defoaming function comprises a tank body; a stirring shaft is arranged in the center in the tank body, a power mechanism used for driving the stirring shaft to rotate is arranged at the top or the bottom of the tank body, a circular annular floater is arranged in the tank body, and a center cylinder is arranged in the center of the floater; a plurality of connecting ribs are arranged between the center cylinder and the floater, a through hole is formed in the center of the center cylinder, and an annular cavity coaxial with the through hole is formed in the center cylinder; a plurality of induction coils are arranged in the annular cavity; a plurality of groups of metal wires are connected between the center cylinder and the floater; a rotor is arranged in the center cylinder; and the stirring shaft is used for driving the rotor to rotate. The reaction kettle has the beneficial effects that foam is eliminated during petrochemical reaction by utilizing a physical defoaming method, impurities are not mixed in a final product, extra expenditure is not needed, and the reaction kettle is energy-saving and environment-friendly.

The invention relates to a low pressure drop demister for a segregation and separation integration apparatus. The low pressure drop demister comprises a separator shell and a segregator, the segregator is arranged in the separator shell, and a hot gas channel is formed between the segregator and the separator shell; the upper part of the separator shell is provided with a hot gas outlet, a hollow flow guiding column with the upper end and the lower end respectively being opened is correspondingly arranged below the segregator, a hot gas channel is arranged between the flow guiding column and the separator shell, a plurality of demisting grills are arranged in the flow guiding column from top to bottom, the adjacent demisting grills are arranged in a staggered manner, the demisting grills are obliquely arranged on the flow guiding column, an annular demister is arranged in the hot gas channel between the segregator and the separator shell, and the hot gas outlet is provided with a second-stage centrifuging device. The low pressure drop demister can effectively and thoroughly separate liquid form entrainments formed in the steam-liquid separation process.

The invention provides a clothes treatment device, a control method, a control system and a storage medium. The control method of the clothes treatment device comprises the steps that in the dewatering procedure operation process, work parameters of the clothes treatment device are acquired; it is determined that the work parameters meet preset conditions; a motor of the clothes treatment device is controlled to stop operating, and the clothes treatment device is controlled to drain water; and the motor is controlled to be started, wherein the duration from the operation stopping moment of themotor to the starting moment of the motor is shorter than or equal to 120 s. According to the control method of the clothes treatment device, foam water is drained naturally within a short time, andthen the effect of defoaming is achieved, so that the influence on the operation duration of a dewatering procedure is reduced, and the motor power is within the safe use range in the dewatering process; and temperature rise cannot be influenced, and then the dewatering efficiency is improved.

The invention discloses a geothermal tail water recharge system. The geothermal tail water recharge system comprises a recharge pipe and a fixed box, wherein the fixed box is fixedly arranged on the ground, and the recharge pipe penetrates through the outer side wall of the fixed box and goes deep into the ground; a transmission box is fixedly connected to the inner side wall of the recharge pipe, and a driving mechanism is rotationally connected to the inner side wall of the transmission box; a defoaming box is fixedly connected to the inner side wall of the recharge pipe, and a defoaming mechanism is rotationally connected to the inner side wall of the defoaming box; a filter screen is fixedly connected to the inner side wall of the recharge pipe, and a mounting chamber is formed in the recharge pipe; and a through groove is formed in the outer side wall of the recharge pipe. A connecting rod drives conical teeth to rotate rapidly, and the conical teeth arranged on the outer side wall of an defoaming impeller can crush residual bubbles in water flow, so that the defoaming effect is achieved, and the situation that the bubbles are gathered underground and block injected water flow is avoided. Further, the frequency of regular back raising is reduced, and the recharging efficiency of geothermal tail water is improved.

The invention provides a hot melt film one-time forming laminating process method and device. The process method comprises the following steps: 1) fusing a laminating part and a hot melt part on one piece of equipment; the three working procedures of fusion fitting, defoaming and hot melting fitting being one fitting working procedure, so that a working mode of synchronously finishing fitting and hot melting is realized; (2) designing the equipment into a double-wheel structure, the hot melt film being accurately attached to the surface of a product through a pressing roller of the attaching part, completely exhausting gas between attaching faces to enable the attaching faces to be free of bubble residues, and heating the hot melt film and performing edge sealing through a hot melt roller along with pressure. The device adopts a double-wheel structure, deaeration and hot pressing are completed in one step, and the problems that due to product structure factors, a traditional technology and traditional equipment must adopt the technology of firstly attaching, then deaeration and finally hot melting and pressing, the production efficiency is influenced, inconsistency is generated due to long retention time of products, and the product reliability is influenced are solved. The manufacturing time is shortened, and the stability of the product is improved.

The invention discloses a developing tank automatic defoaming device. The automatic defoaming device comprises a developing tank and an auxiliary tank in the developing tank. According to the automatic defoaming device, the upper end of the auxiliary tank arranged in the developing tank is provided with a defoaming container containing a defoaming agent, the upper end of the defoaming container is provided with a plurality of apertures, and the distance between the apertures and the bottom end of the developing tank equals to the height enabling the foam in the developing tank flows into the defoaming container, so the foams contained in a developing liquid can automatically flow into the defoaming container provided with the defoaming agent when the developing liquid reaches the height, thereby a defoaming effect is realized. The device has the advantages of simple structure and low manufacturing cost.