107results about How to "Disperse fast" patented technology

The invention relates to the technical field of photovoltaic energy storage cabinets, in particular to a safety type photovoltaic energy storage cabinet. Comprising an outer shell, a plurality of inner shells are fixedly connected in the outer shell, battery packs are detachably and fixedly connected in the inner shells, cooling fans which are symmetrically distributed are arranged outside the outer shell, each inner shell is provided with two cooling row holes which are symmetrically distributed, and the inner shells are slidably connected with two plugging frames which are symmetrically distributed. The two plugging frames on the inner shell are jointly provided with a connecting frame, the inner shell is fixedly connected with a sliding rail, an electric sliding block is slidably connected into the sliding rail, and the electric sliding block of the sliding rail is fixedly connected with the adjacent connecting frame. According to the invention, the temperatures of the plurality of battery packs during charging are respectively detected, and heat dissipation of different degrees is carried out according to different temperatures of the plurality of battery packs, so that the plurality of battery packs are at proper temperatures, cooling resources are allocated as required, energy is saved, and operation cost is reduced.

The invention relates to a defoaming agent with fast dispersion, low cloud point, high temperature and high pressure resistance, strong acid and strong alkali resistance, which is prepared from the following components in percentage by weight: 5%-50% of white carbon black silicon paste, 1%-25% of terminated polyether modified polysiloxane, 0.1%-10% of spherical polysilsesquioxane, 1%-25% of compound polyether, 0.1%-10% of thickening agent, 0.05%-0.5% of sterilizing agent and the balance of water, and the sum of the weight percentages of the components is 100%. The invention also provides a production process of the defoaming agent, which comprises the following steps of: stirring the white carbon black silicon paste, the spherical polysilsesquioxane and the terminated polyether modified polysiloxane by using a homogenizer to be fully mixed, then adding the compound polyether, the thickening agent and the sterilizing agent, uniformly stirring, and continuously and quickly stirring for 25-35 minutes by using the homogenizer to obtain the defoaming agent. The uniformly mixed polyether modified polysiloxane defoaming agent is obtained. The invention aims to provide the defoaming agent which is high in dispersion speed, low in cloud point, resistant to high temperature and high pressure and resistant to strong acid and strong alkali.

The invention relates to the field of packaging materials, in particular to a high-barrier waterproof and oil-proof PHA composite film, a preparation method of the PHA composite film and a prepared protective inflatable bubble bag and paper cup. Comprising the following steps: dispersing PHA particles in a dispersion liquid to obtain a PHA dispersion with the solid content of 1-3%, and then carrying out vacuum distillation to obtain a PHA dispersion with the solid content of 60-70%; the method comprises the following steps: coating a PHA dispersion with the solid content of 60-70% on a base material, and drying at 145-155 DEG C to form a coating on the base material; and carrying out hot pressing on the surface containing the coating at 175-185 DEG C to obtain the PHA composite film. Through the production process, the obtained PHA dispersion with the solid content of 60-70% is subjected to coating, curing and hot pressing to form a stable PHA layer, so that the obtained PHA composite film has better barrier property and physical property.

The invention discloses an airport roof rainwater treatment monitoring system and method based on cloud computing, relates to the technical field of rainwater monitoring, and solves the technical problems that under extreme weather conditions such as rainstorm, a traditional drainage system is difficult to drain roof accumulated water quickly, accumulated water flooding may be caused, and normal operation of an airport is affected. The rainfall of the target area is predicted; determining a drainage pipeline combination according to the rainfall of the target area; obtaining the content of each element in the rainwater, and analyzing the water quality index of the rainwater; evaluating the pollution level of the rainwater based on the water quality index; based on the pollution level of the rainwater, different water qualities are conveyed to the corresponding reservoirs; based on the pollution level of the rainwater, different water quality is conveyed to the corresponding filter tanks; the device can quickly and effectively disperse and drain accumulated water on the roof, so that the pressure of the accumulated water on an airport building structure is reduced, and the service life of a building is prolonged.

The invention discloses a blood detection device and a detection method thereof, and belongs to the technical field of medical instruments. A blood detection device comprises a workbench and further comprises a detection disc with a cavity, the detection disc is fixedly connected to the workbench, a shaking mixing mechanism is arranged in the cavity of the detection disc, and a containing hole is formed in the top of the detection disc; the device can continuously and softly shake an anticoagulant and blood in the blood collection tube, so that the phenomenon of blood coagulation caused by non-uniform mixing is avoided, medical staff can quickly and uniformly mix and softly shake the blood collection tube after blood collection, the phenomenon that the anticoagulant is not fully mixed is prevented, the local concentration uniformity is ensured, and the blood collection tube is prevented from being damaged. The blood collection tube can be shaken within several minutes after blood drawing, it is ensured that an anticoagulant can play a role in time, in this way, the follow-up waiting time of a patient can be shortened, and the workload of medical staff can be reduced.

The invention relates to the technical field of adhesive tapes, and particularly discloses a double-sided adhesive tape with excellent weather resistance and a preparation method thereof.The double-sided adhesive tape comprises a first release film layer, a first adhesive layer, a base material layer, a second adhesive layer and a second release film layer, the adhesive layer is prepared from an adhesive through simple processes of coating, drying and the like, industrial production is easy, and the adhesive tape has good weather resistance. The adhesive is obtained by mixing an acrylate polymer, modified polyvinyl alcohol, a defoaming agent and a plasticizer, the acrylate polymer and the modified polyvinyl alcohol have excellent adhesive power and can be firmly adhered to various materials, the raw materials of the adhesive form a stable composite system through structural complementation, and through chemical bonding and physical effects, the adhesive can be firmly adhered to various materials. The comprehensive performance of the double-sided adhesive tape is further improved, and the double-sided adhesive tape has excellent toughness and stability, is not easy to age and fall off, and is improved in weather resistance, adhesion and tensile strength, so that the double-sided adhesive tape is more durable in the use process.

The invention discloses a composite adjuvant, and belongs to the field of vaccine adjuvants. The main active components of the composite adjuvant are squalene, polysorbate 80 and monophosphoryl ester A, the composite adjuvant is in an oil-in-water emulsion form, nano-scale emulsion droplet particles are uniformly distributed in a water phase, and the system is stable. The invention also discloses a preparation method of the composite adjuvant based on a stirring method. The composite adjuvant comprehensively utilizes the dual characteristics of the oil-in-water emulsion and the immunopotentiator, and can induce a higher level of immunoreaction when being combined with the antigen, so that the composite adjuvant can be used for preparing vaccines and improving the effectiveness of the vaccines.

The invention relates to the technical field of insulated cables, in particular to a multifunctional overhead insulated cable, which comprises a plurality of groups of wire core conductors, a filling base layer arranged on the surfaces of the plurality of groups of wire core conductors, an insulating assembly, a heat conduction assembly and a protection assembly, through the insulation assembly, accumulation of heat in the cable is reduced, the heat can be rapidly absorbed through the heat absorption layer, meanwhile, the heat absorbed by the heat absorption layer can be further conducted outwards through the heat conduction assembly, the heat dissipation effect on the internal insulation layer and the wire core conductor is improved, and through the arranged protection assembly, when the cable is subjected to external pressure or impact, the protection effect is improved. The heat conduction assembly and the insulation assembly arranged inside are buffered and protected, the risks of aging and cracking of the insulation layer caused by expansion and stress concentration due to high temperature are effectively relieved, heat can be rapidly dispersed, the heat dissipation capability of the cable is improved, the electrical performance and safety are ensured, and the service life of the cable and related accessories is prolonged.

The invention discloses uniform mixing equipment for preparing antiviral oral liquid, and belongs to the technical field of pharmaceutical preparation production, the uniform mixing equipment comprises a mixing part, the mixing part comprises a mixing equipment main body, a stirring assembly for mixing liquid medicine is arranged in the mixing equipment main body, and a first sliding groove and a plurality of teeth are arranged in the mixing equipment main body; a buffer thin-wall layer for slowly conducting heat is arranged on the stirring assembly; the cooling part comprises a liquid conveying assembly and a cooling assembly which are arranged in the stirring assembly and is used for uniformly conveying a solvent and cooling a medicament in the mixing process, and through the collaborative design of rotation of a main stirring paddle and synchronous liquid spraying of a liquid outlet, purified water is uniformly dispersed to all positions of an inner cavity of the mixing tank body in the stirring process; the problems that local liquid medicine is too thick and is slowly dispersed due to traditional top single-point water adding are solved, the raw materials and the solvent can be rapidly and evenly mixed without long-time stirring, the mixing period is greatly shortened, and meanwhile heat accumulation generated by long-time stirring is reduced.

The present application discloses a nanoparticle type heavy oil viscosity reducer and its preparation method and application, which belongs to the technical field of heavy oil chemical additives. The preparation method is to take 1 part of anhydrous citric acid, 2 to 2.7 parts of benzylamine and 0.3 to 1 part of octadecylamine in molar ratio, dissolve them in ethanol solution, and stir them evenly; then put them into a reactor for constant temperature reaction at 180°C, and obtain a crude product after cooling; the crude product is concentrated and purified by dialysis, and the nanoparticle type heavy oil viscosity reducer is obtained after drying. The heavy oil viscosity reducer provided by the present application forms a polymer with good viscosity reduction effect through molecular design, and due to its small molecular weight, it presents a nanoparticle form at the microscopic level. Based on the surface effect and high specific surface area of ​​nanoparticles, it has good dispersibility and penetration ability; the nano effect further promotes the depolymerization of asphaltene aggregates in heavy oil by the functional groups in the viscosity reducer molecules, showing a good viscosity reduction effect. And the process is simple and easy to control, does not use toxic solvents, and is very environmentally friendly.

The invention belongs to the technical field of algal polysaccharide extraction, and discloses a modification extraction method of algal asparagus polysaccharide and a method for preparing a lutein coating by using the algal asparagus polysaccharide. The modified extraction method comprises the following steps: extracting gracilaria lemaneiformis powder with a weak base solution, enabling lactide and polysaccharide to be subjected to grafting reaction through a redox initiation system under the assistance of ultrasonic waves, and then separating out a first polysaccharide component with high emulsibility and a second polysaccharide component with high gel property through graded alcohol precipitation. The two obtained functional components are used for coating xanthophyll, specifically, the first polysaccharide component emulsifies a xanthophyll oil phase to form a pre-emulsion, the second polysaccharide component is compounded with gelatin, a composite coacervate is formed on an oil drop interface by adjusting the pH value, and finally drying and curing are conducted. According to the method, two modified polysaccharides with definite functions can be synchronously obtained, the prepared xanthophyll coating is high in encapsulation efficiency, good in storage and processing stability and excellent in water dispersibility, and the problems that xanthophyll is unstable and difficult to apply are effectively solved.

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

The invention relates to a solid fuel combustion characteristic test technology, and aims to provide a focusing single particle suspension variable atmosphere ignition combustion experiment device and method. A second microporous plate and a feed hopper are arranged at the top of a combustion chamber main body of the device, and a first microporous plate and a gas buffer cavity are arranged at the bottom; the two laser emitters are arranged in an included angle shape, and the energy of a single laser beam is lower than a fuel particle ignition threshold value; the two paths of laser intersect in the central area of the cavity to form a space energy focus, and the superposed energy of the two beams of laser can be absorbed at the position to reach an ignition threshold value; and light paths of diagnosis equipment in the optical acquisition module are intersected in a focus area. According to the invention, through a strategy of airflow disturbance and microwell plate blocking, particles completely move in airflow; the ignition behavior has spatial selectivity, the success rate is high and controllable, and the research is closer to the actual application scene. Through the design of single-particle fixed-point triggering, the system complexity and the control difficulty can be reduced, and the operation stability and the experiment repeatability can be improved.

The utility model is suitable for the technical field of equipment heat dissipation, and provides an efficient shell and tube heat exchanger which comprises a base, a heat dissipation module is installed on the bottom face of the base, shell tubes are symmetrically arranged on the two sides of the base, each shell tube is of a U-shaped structure, a plurality of heat dissipation fins are fixedly installed on the inner wall of each shell tube at equal intervals, and water conveying pipes are fixedly installed on the heat dissipation fins. The water pipes on the two sides are communicated, the water pipe on one side is connected with the input end of the heat dissipation module, the water pipe on the other side is connected with the output end of the heat dissipation module, and when the multiple heat dissipation fins arranged in the shell pipes on the two sides make contact with the equipment shell, heat on the equipment shell can be rapidly dispersed to the multiple heat dissipation fins, and heat dissipation of the equipment shell is accelerated; in addition, when the heat dissipation module conveys cold water to the water conveying pipe, the flowing cold water can quickly cool the heat dissipation fins, and the heat dissipation efficiency of the equipment shell is further improved.

According to the N-type TOPCon battery front grid line silver-aluminum paste and the battery, the surface of the aluminum powder in the silver-aluminum paste is coated with the organic modifier, so that the surface oil absorption rate of the aluminum powder is improved, the interaction among the aluminum powder is reduced, the aluminum powder and an organic carrier in the paste have better compatibility, and the service life of the aluminum powder is prolonged. The dispersing agent can be quickly and uniformly dispersed into organic or slurry, so that the agglomeration and the fineness of the slurry are reduced, and smooth printing on a thin-line-width screen printing plate is ensured; meanwhile, the surface of the aluminum powder is coated with organic matter, surface oxidation of the aluminum powder is reduced, flowing of molten aluminum at a low temperature in the sintering process is facilitated, contact and efficiency are improved, the sintered silicon contact surface and silver-aluminum spikes are tiny and large in number, and therefore the VOC and contact performance of the battery are improved, and the service life of the battery is prolonged. Therefore, the problems of grid breakage and silver-aluminum spikes easily caused by aluminum powder agglomeration in the printing process of the existing N-type TOPCon battery front grid line silver-aluminum paste are solved.

The application provides an amphiphilic carbon dot, a rapid dispersion ultra-stable foam system and a preparation method thereof, and belongs to the field of oil field chemistry, wherein the preparation method of the amphiphilic carbon dot comprises the following steps: dissolving cholic acid in a first solvent to obtain a hydrophobic phase precursor solution; dissolving chitosan oligomer in a second solvent to obtain a hydrophilic phase precursor solution; mixing the hydrophobic phase precursor solution and the hydrophilic phase precursor solution in a closed reactor, standing for 5-10 min, and performing phased microwave treatment: 180-220 W for 1-3 min, 450-550 W for 2-5 min, and 80-120 W for 4-8 min; cooling the reaction liquid to room temperature, and obtaining the amphiphilic carbon dot through filtration, dialysis and freeze-drying. Through the synergistic effect of the amphiphilic carbon dot and the surfactant, the application can realize rapid dispersion to form uniform foam, and can maintain the stability of the foam in a high-salt environment for a long time, thereby meeting the application requirements in a high-salt scene.

The application relates to a method for preparing a graphene-containing modifier based on a carbon-containing gas and application, and belongs to the technical field of magnesium alloy. The application aims to solve the problems of high cost, poor refining effect, unstable refining effect, poor working environment, poor forming capacity and mechanical property of cast magnesium-aluminum alloy complex thin-wall components of existing magnesium-aluminum alloy modifiers. The graphene-containing modifier is prepared by feeding the carbon-containing gas into a magnesium melt, and the graphene in the modifier is well dispersed. The modifier is put into a magnesium-aluminum alloy melt, and after standing, the melt is fully mixed and reacted by stirring, and then is solidified at a certain cooling speed after standing, so that the magnesium-aluminum alloy is refined. The application has the advantages of low cost, simple operation, cleanness, stability and high efficiency of the modifier, and slow refining recession. The graphene-containing modifier prepared by the application is suitable for grain refinement of aluminum-magnesium alloy.

The utility model discloses a fungus degradation ammonia nitrogen constant-temperature refrigeration tank, and relates to the technical field of refrigeration tanks. The utility model comprises: a base; the tank body is fixedly installed on the top of the base, a tank cover is placed on the top of the tank body, and a lifting assembly used for driving the tank cover to ascend and descend is installed on the base; the stirring assembly is mounted on the tank cover and used for stirring the fungi and the raw materials in the tank body to be mixed; and the refrigerator is fixedly installed on the top of the base and located below the tank body. The ammonia nitrogen degrading bacteria in the tank body are stirred through the stirring assembly, so that cold air below the tank body can be quickly dispersed to the upper part and other parts of the tank body, the ammonia nitrogen degrading bacteria in the tank body can be quickly cooled through the operation, the comprehensive and uniform refrigeration effect is achieved, the refrigeration working efficiency is improved, and the energy consumption is reduced. The use by people is convenient.

The invention relates to a tranexamic acid oral dissolving system for improving bioavailability, which relates to the technical field of medicines and comprises a tranexamic acid oral dissolving film and a tranexamic acid oral dissolving tablet. The design of the oral dissolving tablet and the oral dissolving film fully considers the requirements of different patient groups and the characteristics of medicine absorption, the characteristic that the oral dissolving tablet can be taken without water improves the compliance of patients, the problem that traditional tablets are difficult to swallow is solved, and the oral dissolving tablet and the oral dissolving film have very good application prospects for patients who often travel or need to take medicine under the anhydrous condition. An orally disintegrating system has good convenience; the tranexamic acid oral dissolution system can be rapidly disintegrated in the oral cavity, so that the medicine is rapidly dispersed, the contact area with the oral mucosa is increased, the medicine is promoted to be absorbed through the oral mucosa tissue and other pregastric regions, the bioavailability is improved, and the medicine absorption speed is increased.

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 present invention relates to the technical field of differential pressure sensors, and in particular to an IO-Link differential pressure transmitter, comprising: a measuring module symmetrically provided with a plurality of liquid inlets and a measuring cavity provided inside the measuring module, wherein the measuring cavity is connected to the liquid inlet through a liquid guide port; a measuring assembly is provided inside the measuring cavity, wherein the measuring assembly comprises an isolation membrane, and an extrusion ring is provided on the side of the isolation membrane close to the liquid guide port, wherein the extrusion ring is connected to the isolation membrane and is clamped inside the liquid guide port; a sealing assembly is provided at one end of the liquid guide port close to the liquid inlet, wherein the sealing assembly comprises a sealing ring, a sealing plate and a sealing cover, wherein the sealing ring is provided at one end of the liquid guide port close to the liquid inlet, wherein the sealing plate is sealingly and slidingly provided inside the liquid guide port, and the sealing cover is an annular cover, wherein the two ends are fixedly connected to the sealing ring and the sealing plate respectively. The present invention reduces the impact wear on the isolation membrane during the introduction process, thereby improving the service life of the isolation membrane.

The present invention provides a leaching resin with a surface-bonded polycationic phosphonate, and particularly relates to a polystyrene-based leaching resin with a surface-bonded polyquaternary ammonium cationic phosphonate for high-capacity adsorption and extraction of rare earth ions, which is prepared by copolymerization between a surface-bonded unsaturated cationic phosphonate resin and an unsaturated cationic phosphonate. The leaching resin with the surface-bonded polycationic phosphonate not only has good hydrophilicity and can quickly and highly extract rare earth metal ions in an aqueous solution, but also has an anion exchange function. In particular, the chemical stability of the extraction in the solution is high, and the performance of extracting rare earth metal ions is long-lasting, and it is particularly suitable for recycling in the process of extraction, separation or enrichment and recovery of precious metal ions or rare earth ions, or in the field of uranium extraction from seawater.

This utility model discloses a fish-scale vibrating conveyor drying device, which includes a shell assembly, a conveying and drying assembly, and a fish-scale leveling assembly. The shell assembly includes a base, a lower shell, and an upper shell. The conveying and drying assembly includes a limiting frame and a vibrating bed plate. A baffle plate is connected to the upper end face of the vibrating bed plate, and a fish-scale leveling assembly is provided on the baffle plate. The fish-scale leveling assembly includes multiple first fish-scale leveling plates arranged in a left-right row. Each first fish-scale leveling plate has a pair of first support plates fixedly connected to the lower end face of its respective first fish-scale leveling plate and fixedly connected to the upper end face of the vibrating bed plate. A second fish-scale leveling plate is provided between every two first fish-scale leveling plates, and each second fish-scale leveling plate has a pair of second support plates fixedly connected to the lower end face of its respective second fish-scale leveling plate and fixedly connected to the upper end face of the vibrating bed plate. This utility model can significantly increase the contact area between the crystalline granular material and the drying hot air, improve the heat exchange efficiency, and shorten the drying time.

The invention relates to the technical field of composite electroplating, in particular to an electroplating method for preparing a high-wear-resistance self-lubricating plating layer, which comprises the following steps: firstly, carrying out pretreatment of oil removal and acid pickling activation on a metal workpiece; then preparing a nano composite nickel plating solution in which a nickel plating basic solution contains a nano particle composite phase subjected to pre-dispersion treatment, and the total concentration of composite particles is 10-60g / L; then the dispersion stability of the nano-composite nickel plating solution is maintained in a circulating filtration and mechanical stirring combined mode, and the pretreated workpiece is electroplated; and finally, after electroplating is completed, the workpiece is cleaned and dried. According to the electroplating process for preparing the nickel-based composite coating with high wear resistance and low friction coefficient, the pulse current is adopted, and the high instantaneous current density and turn-off time of the pulse current are utilized, so that desorption and rearrangement of adsorbed particles are facilitated, uniform embedding of the particles is promoted, nickel matrix crystal grains are refined, and the compactness and comprehensive mechanical properties of the coating are further optimized.

The utility model discloses an installation structure of improving diode heat conduction, including the mounting panel, is equipped with a plurality of insertion hole to be opened on the mounting panel, and the insertion hole all has and inserts the light emitting diode, and the light emitting diode bottom is provided with the heat conduction pad, and the mounting panel inside is provided with the fixed mechanism, and the mounting panel lower surface is provided with the insulating layer, and the insulating layer lower surface is provided with the heat conduction plate, and the heat conduction plate lower surface is equipped with the heat dissipation subassembly, and the heat conduction plate lower surface is provided with a plurality of convex strips, and the heat dissipation subassembly top is equipped with a plurality of recesses, and the convex strip is inserted in the recess. The utility model discloses through setting up the heat conduction pad, and the heat conduction pad penetrates the insulating layer and directly sticks with the heat conduction plate, and constructs the short path heat conduction channel from diode chip to the heat conduction plate, and the thermal resistance is reduced greatly, and sets up the fixed mechanism, and rotates the screw rod and can realize two -way clamping or loosening simultaneously, and the elastic rubber pad of clamping surface and arc recess can avoid diode shell damage, and can fill the gap through elastic deformation, and ensure the stability of holding.

The present application belongs to the technical field of food processing, and specifically relates to a physical preparation method of high-resistance starch ultra-micro powder. The high-resistance starch rice with a dry basis resistance starch content of greater than or equal to 30% is used as raw material, and a pure physical processing route is adopted. The rice is first made crisp through twice low-temperature baking at 100-120 DEG C, and the structure of the resistance starch is stabilized at the same time. Then, after coarse crushing, the rice is sent into an airflow pulverizer, and wind-driven ultra-micro grinding is carried out in a low-temperature environment. Finally, the ultra-micro powder is obtained through grading. In the present application, no chemical reagent and enzyme preparation is used in the whole process, the processing temperature is lower than the thermal decomposition temperature of the resistance starch, the retention rate of the finished product resistance starch is greater than or equal to 93%, the dry basis content is greater than or equal to 28%, the powder is fine and has good cold water dispersibility, and the shelf life at room temperature can be more than 12 months. The present application has the advantages of simple process, controllable cost, suitability for large-scale production, no need for customizing special devices, short process flow, no complex reaction, separation and purification processes, low equipment investment and operation cost, and easy realization of large-scale industrial production.

The present invention provides a shielding and buffering foam for SMT welding, which includes silicone foam, adhesive glue, and conductive cloth from bottom to top. The silicone foam is penetrated with stainless steel metal fiber. The silicone foam includes a first mixture and a second mixture. The mass ratio of the first mixture to the second mixture is 1:1-1.2. The first mixture includes: 100 parts of methyl vinyl siloxane and 0.2-2 parts of platinum vulcanizer; the second mixture includes: 15-30 parts of hydrogenated silicone oil and 10-20 parts of flame-retardant modified short rod-shaped mesoporous silica. The shielding and buffering foam for SMT welding of the present invention has the advantages of excellent electromagnetic shielding effect (≥90db), heat resistance, flame retardant performance (UL94V-0), low thermal conductivity, etc.

The utility model relates to the technical field of sewage treatment, in particular to a sewage pool mixing and dosing device which comprises a pool body, a medicine barrel, a moving device and an auxiliary mixing device, the moving device comprises a fixed frame, a threaded rod, a sliding block, a moving frame and a first motor, and the fixed frame is fixedly installed on one side of the top end of the pool body; a groove is formed in the top end of the fixed frame, a threaded rod drives a sliding block to linearly move in the groove in the rotating process, the sliding block drives a movable frame to move in the fixed frame, reciprocating movement of the movable frame on the pool body is achieved, and when the movable frame moves, an output pipe discharges chemicals in the output pipe through a chemical discharging hole in the rotating process; the output pipe drives the spinning roller connected with the side wall to rotate in the rotating process, and the discharged medicament and sewage in the tank body are mixed in an auxiliary manner, so that the medicament is more uniformly mixed with water, the flowability of the water body is kept, and the medicament can be quickly and fully dispersed into the whole water body.

The invention relates to the technical field of nuclear power station equipment, in particular to a digesting agent preparation method and a method and system for removing iron-containing colloidal deposits, and the target digesting agent is obtained by synthesizing 4-aminobenzoic acid through a melt polycondensation method by using acetic acid as a catalyst. The method disclosed by the invention has the beneficial effects that the poly (aminobenzoic acid) serving as the target digestion agent is synthesized by taking 4-aminobenzoic acid as a monomer and adopting cheap and environment-friendly acetic acid as a catalyst through a melt polycondensation method for the first time. According to the innovation, the traditional synthesis process is simplified, the production cost is reduced, and the stability and efficiency of the target digesting agent in a high-temperature and high-pressure environment are also remarkably improved.

The utility model discloses an efficient dissolving device for producing a compound food additive, which can obviously accelerate the dissolving process of the food additive by arranging an electric hot tray to heat a batching barrel and combining the vibration effect of an ultrasonic vibration mechanism. The agglomeration state of solute can be broken through the cavitation effect and mechanical vibration of ultrasonic waves, so that the solute can be dispersed in the solvent more quickly. The batching barrel is driven by the rotating mechanism to rotate around the axis of the batching barrel, so that a mixture in the batching barrel forms vortex and shearing force in the rotating process, the deposition and caking of solute are effectively prevented, the uniform dispersion of the solute in a solvent is promoted, the mixing efficiency is improved, and the production period is shortened.