80results about How to "Large particle size" patented technology

The invention belongs to the technical field of anhydrous magnesium chloride production, and particularly relates to a preparation process of anhydrous magnesium chloride, which comprises the following steps: firstly, dissolving magnesium chloride hexahydrate in absolute ethyl alcohol to form a magnesium chloride ethanol aqueous solution, and then dehydrating the magnesium chloride ethanol aqueous solution by using a molecular sieve to obtain the magnesium chloride ethanol solution; carrying out secondary cooling, stirring crystallization, secondary solid-liquid separation and vacuum drying on the magnesium chloride ethanol solution to obtain high-purity anhydrous magnesium chloride; and recycling ethanol liquid obtained by solid-liquid separation and ethanol gas obtained by vacuum drying. The technical scheme provided by the invention is simple in process flow, low in energy consumption, low in equipment requirement, high in product yield and high in purity, and can be directly applied to the fields of electrolytic preparation of magnesium, catalyst carriers and the like.

The utility model relates to the technical field of bubble generator, and disclose a kind of suspended underwater micro-nano bubble generator, including adjustable support mechanism, bubble generating mechanism and external protection mechanism;Bubble generating mechanism is by multistage water pump, inlet pipe, one-way water inlet valve, connecting pump, transport pump, high-speed rotary cutting nanometer bubble pump, conveying pipe and aeration head etc., and is connected by thread seal sleeve to realize pipeline sealing connection.Mainframe box is equipped with buoy, internal and external pressure monitoring sensor, can realize underwater suspension and pressure real-time monitoring.Adjustable support mechanism can adjust equipment installation height, and external protection mechanism is realized waterproof anti-collision protection by protective shell, sealing washer and protective fence.The device adopts multistage water pump to match double high-speed rotary cutting nanometer bubble pump, can accurately control fluid flow rate and pressure, generates bubble particle size uniform, dissolved oxygen efficiency is high, with the characteristics of intelligent control, anticorrosive durable, protective, suitable for water purification, aquatic ecological restoration etc.

This utility model relates to the field of atomization spray technology, specifically an atomization spray precision control device. The device includes an atomizer with a side-hollow structure. A baffle plate is located inside the atomizer, and a transmission groove is formed within the atomizer. A connecting rod is fixedly connected to the top of the baffle plate. The top of the connecting rod extends into the transmission groove and is fixedly connected to a gear. A threaded rod is rotatably connected inside the transmission groove. A sliding block is threadedly connected to the external thread of the threaded rod, and another sliding block is threadedly connected to its external thread. A rack is fixedly connected to the bottom of the sliding block. A limit rail is fixedly connected to the top of the inner wall of the transmission groove. The advantages of this utility model are that it ensures uniform drug particle size, enabling precise deposition in the respiratory tract and lungs, improving drug absorption efficiency, optimizing drug distribution, avoiding excessively high or low local drug concentrations, enhancing therapeutic effects, and reducing side effects. Compared to traditional devices, it significantly improves operational quality and efficiency.

This utility model discloses a lithium iron phosphate slurry preparation device, including multiple grinding mechanisms connected in series. Each grinding mechanism includes grinding components and screening components. The grinding precision of the multiple grinding components gradually increases along the series direction. The screening component has a feed inlet, a return inlet, and a discharge outlet. The feed inlet is connected to the discharge end of the grinding component. The return inlet and discharge outlet are used to discharge materials with particle sizes larger than and smaller than a set value, respectively. The return inlet is connected to the feed end of the grinding component, and the discharge outlet is connected to the feed end of the grinding component in the next grinding mechanism in the series. By connecting the grinding mechanisms in series, continuous production of lithium iron phosphate slurry is achieved, avoiding performance fluctuations between batches. Furthermore, by setting a screening component in each grinding mechanism, the grinding precision of each stage can be controlled, allowing for precise control of the abrasive particle size.

The invention discloses a lipstick raw material mixing system, and relates to the technical field of cosmetic production, the lipstick raw material mixing system comprises a tank body, a cover body, a first motor and a stirring paddle, the stirring paddle penetrates through the cover body and is fixedly connected with the first motor; a grinding seat is fixedly arranged at the inner bottom of the tank body, an inverted-cone-shaped grinding cavity is formed in the grinding seat, an inverted-cone-shaped grinding block is rotationally arranged in the grinding seat, and a supporting column is fixedly arranged at the small end of the inverted-cone-shaped grinding block; a second motor is fixedly arranged at the outer bottom of the tank body and is fixedly connected with the supporting column; at least one circulating device is fixedly arranged on the outer side of the tank body and comprises a circulating main pipe, a first branch pipe, an electric push rod, a second branch pipe and a piston, the circulating main pipe communicates with the inverted-cone-shaped grinding cavity based on the first branch pipe and communicates with the middle space of the tank body based on the second branch pipe, and the output end of the electric push rod is fixedly connected with the upper end of the piston. By integrating the stirring structure, the grinding structure and the circulating device, grinding and stirring collaboration is achieved, the process is simplified, and the mixing uniformity is improved.

This invention discloses a method for preparing zeolite molecular sieves with precisely adjustable particle size, comprising the following steps: (1) adding aluminum source and other raw materials to deionized water and stirring evenly at room temperature; (2) adding silicon source, stirring at room temperature, and then adding template agent to obtain precursor slurry; (3) adding zeolite molecular sieve, the amount of zeolite molecular sieve being 1-15 mg / g of precursor slurry, transferring the precursor slurry to a high-pressure reactor, fixing it on a homogeneous reactor, heating to 0-150℃, maintaining for 1-200 h, and then heating to 160-230℃ for 3 hours to crystallize for 6-96 h; (4) obtaining zeolite molecular sieve after centrifugal washing, drying, and calcination. The innovation of the preparation method of this invention lies in the first use of a two-stage synthesis method, which can gradually reduce the particle size of the zeolite molecular sieve product while increasing the yield of zeolite molecular sieves. This method successfully synthesized SAPO-34 zeolite molecular sieve with a particle size deviation of less than 0.4 μm and ZSM-5 zeolite molecular sieve with a particle size deviation of less than 0.2 μm.

This invention discloses a method for removing micro-water from polar lubricating oil based on the synergy of electric field polarization and crystal field. The method includes: first, filtering the polar lubricating oil containing trace amounts of water to remove mechanical impurities, then heating it to 25℃~35℃; then introducing it into an electric field polarization unit, where it is polarized using an electric field until the dielectric constant of the lubricating oil increases by 3%~8% relative to its initial value; next, introducing it into a crystal field unit, where it is stirred and mixed to fully contact an inorganic crystalline particle adsorbent with a superhydrophilic surface, using the adsorbent to remove water from the oil; finally, passing it through a fine filtration unit to remove the water-swollen inorganic crystalline particle adsorbent, thus completing the micro-water removal of the polar lubricating oil. This invention achieves efficient and deep dehydration of polar lubricating oil at room temperature, with advantages such as low energy consumption, low cost, no additive loss, and no impact on oil performance.

The application discloses a preparation method of a nanoscale multi-metal catalyst, which comprises the following steps: mixing ferric nitrate, magnesium nitrate, lanthanum nitrate, gadolinium nitrate, ammonium heptamolybdate and citric acid with water to obtain a concentrated solution by heating and concentrating; mixing ethylenediaminetetraacetic acid, ammonia water and urea to obtain an ethylenediaminetetraacetic acid solution; mixing the concentrated solution and the ethylenediaminetetraacetic acid solution to obtain a mixed solution by stirring, adding a surfactant into the mixed solution and calcining, and finally roasting. The ferric nitrate, the magnesium nitrate, the lanthanum nitrate and the gadolinium nitrate are mixed, a complexing agent is added, a solution is prepared by using a complexing method, the solution is concentrated, calcined and sieved, and finally the nanoscale multi-metal catalyst is formed. The catalyst prepared by the method has a uniform particle size. The catalyst prepared by the method is combined with a plasma technology to prepare a single-walled carbon nanotube, and the single-walled carbon nanotube (without treatment) has a high ratio, a large IG / ID and a small powder resistance.

The application discloses a low-shrinkage antibacterial denture base resin composite material and a preparation method thereof, relates to the field of preparation of the low-shrinkage antibacterial denture base resin composite material, and comprises a methyl methacrylate resin matrix, grafted modified nano silicon dioxide, a chitosan zinc composite antibacterial powder and a crosslinking modified additive. The low-shrinkage antibacterial denture base resin composite material and the preparation method thereof have the advantages that the process steps are progressive and mutually complementary, the modification of the powder provides a structural basis for low shrinkage and long-acting antibacterial properties, the gradient curing and locking of the modified powder lock the functional characteristics, the post-processing technology further stabilizes the comprehensive performance of the material, the problems that the antibacterial performance, the low-shrinkage performance and the mechanical performance cannot be considered simultaneously in the traditional technology are solved, and through the synergistic process of powder fine pretreatment, step-by-step homogeneous mixing, gradient segmented prepolymerization curing and constant-temperature aging post-processing, remarkable technical progress and practical effects are achieved.

This application relates to a polyacrylamide spiral granulator, belonging to the field of granulators. It includes a feed cylinder, a motor, a spiral conveyor, a die plate, and a conveying cylinder. The conveying cylinder is horizontally positioned, and the feed cylinder is vertically positioned above it, with its lower end connected to the conveying cylinder. The spiral conveyor is disposed inside the conveying cylinder, and the motor is located on one side of the conveying cylinder and drives the spiral conveyor. The die plate includes a fixed plate and a rotating plate. The fixed plate has multiple discharge holes (first type), and the rotating plate has multiple discharge holes (second type). The rotating plate and the fixed plate rotate relative to each other. The conveying cylinder is equipped with a fixing component to fix the positions of both the rotating plate and the fixed plate. This application has the effect of allowing users to quickly adjust the particle size of the extruded polyacrylamide granules.

The application discloses a kind of core-shell structure nanometer powder toughened zirconia ceramics and preparation method thereof, belong to ceramic material technical field, the method includes using three-dimensional network gel to realize washing-free co-precipitation method to prepare high-activity, ZrO2@SiO2Core-shell structure nanometer zirconia raw material powder, and stable agent is mixed ball milling, drying, sieving, shaping, cold isostatic pressing and gets green body, green body is placed in vacuum furnace and sintering, annealing and obtains toughened zirconia ceramic target product, realizes the efficient preparation of jade quality feeling simulation ceramic tooth of integral penetration.The application avoids the repeated washing steps of precursor in the traditional co-precipitation preparation process, reduces the introduction of impurities, the sintering temperature is lower, the powder yield is high, the process is simple, the cost is low, and is suitable for the industrial production of toughened zirconia ceramics.

This invention discloses a method for preparing a perfluorosulfonic acid resin alcohol aqueous dispersion. The method involves: placing solid perfluorosulfonic acid resin in a high-pressure reactor, using water as a solvent, and dissolving it under high temperature and pressure for 4–20 hours under inert gas protection to obtain a perfluorosulfonic acid resin aqueous dispersion; placing the perfluorosulfonic acid resin aqueous dispersion in a glass reactor, mixing it with an organic solvent, and reacting it under certain temperature conditions for 2–8 hours to obtain a perfluorosulfonic acid resin alcohol aqueous dispersion with uniformly dispersed molecular chains after secondary dispersion. Using this invention, the process is simple, time-efficient, and suitable for industrialization. The prepared perfluorosulfonic acid resin alcohol aqueous dispersion has a moderate particle size and uniformly dispersed molecular chains, making it suitable for proton exchange membrane coating processes, and thus enabling the preparation of composite proton exchange membranes with excellent mechanical and electrochemical properties.

This invention discloses a dual-sided synchronous spraying system for a guide trough, relating to the field of dust control technology in fully mechanized coal mining faces. It includes a guide trough body and an mounting plate; a sensing mechanism installed on one side of the top of the mounting plate; the sensing mechanism includes a storage box, a sealed door, two partition plates, multiple dust concentration sensors, multiple wind speed and direction monitors, and an intelligent control box. This invention achieves real-time monitoring and dynamic response to underground dust concentration and airflow conditions through the coordinated operation of the dust concentration sensors, wind speed and direction monitors, intelligent control box, electromagnetic control valve, and water pressure regulating valve. When the dust concentration exceeds the standard, the intelligent control box can drive the water pressure regulating valve to increase the spray intensity and the electromagnetic control valve to quickly open the spray branch. When the dust concentration reaches the standard, it controls the electromagnetic control valve to close and the water pressure regulating valve to revert, solving the problem of existing spray devices having a fixed and singular mode and being unable to adaptively adjust, thus avoiding the ineffective consumption of water and electricity.

The invention relates to HIF-1alpha siRNA lipid nanoparticles and a preparation method thereof, and belongs to the technical field of pharmaceutical preparations. The preparation method comprises the following steps: S1, dissolving ionizable lipid, neutral lipid, cholesterol and pegylated lipid in an organic solvent to obtain an oil phase; the method comprises the following steps: dissolving HIF-1alpha siRNA in a first buffer solution to obtain a water phase; s2, mixing the oil phase and the water phase by adopting a micro-fluidic technology, diluting with a second buffer solution, removing the organic solvent, and concentrating to obtain the HIF-1alpha siRNA lipid nanoparticles, the targeted delivery of the HIF-1alpha siRNA is realized, so that the HIF-1alpha siRNA is effectively delivered to the rheumatoid arthritis diseased region through the delivery system to play a therapeutic role.

This invention belongs to the field of toothpaste technology, specifically relating to a compound honeysuckle herbal toothpaste for treating oral ulcers and dental caries, and its preparation method. The toothpaste contains the following ingredients: honeysuckle extract, angelica dahurica extract, bletilla striata extract, licorice extract, cellulose gum, sorbitol, sodium monofluorophosphate, sodium benzoate, hydrated silica, sodium lauryl sulfate, sodium saccharin, and deionized water. The preparation process includes ultrafine grinding, two water extractions, low-temperature concentration, and graded filtration to prepare the herbal extracts, which are then mixed and homogenized with a matrix to obtain a stable gel paste. This process improves the extraction of beneficial components from the herbal extracts and achieves synergistic effects on multiple targets. This novel formulation has been demonstrated in rat oral ulcer experiments to significantly reduce ulcer diameter, accelerate healing, and reduce irritation. It has a mild and safe effect on the oral mucosa and is suitable for daily care in people prone to oral ulcers and those with sensitive mouths. This invention has a scientifically formulated, stable, and effective formula with promising application prospects.

The application discloses an engineered potent dendritic cell vaccine and a preparation method and application thereof, and utilizes a nano-scale antigen delivery mode to fuse tumor antigens with cationic liposomes, destroys the stability of a lysosome membrane by means of cationic liposome charge interaction, makes part of the antigens escape into a cytoplasm to be cross-presented through an MHC I pathway, gives the DCs the ability to activate a cellular immune response to resist tumors, on the other hand, gives the DCs T cell directivity through a synthetic immunology method, promotes the interaction and signal transmission of DC-T cells, and the combination of the two mechanisms can overcome the low response rate problem of the existing DC vaccine, and maximizes the anti-tumor immune response.

The invention discloses an efficient cyclone aeration energy-saving treatment system for pulping and papermaking wastewater. The efficient cyclone aeration energy-saving treatment system comprises an aeration tank, array aerators, an oxidation decoloration tank, a first anti-corrosion air supply manifold, a high-pressure air supply nozzle and an activated carbon filter layer, a tank cavity is formed in the aeration tank, array aerators are uniformly arranged on the inner surface of the bottom in the tank cavity, and a discharge port is formed in the inner wall of one side of the upper end of the tank cavity; modular design is adopted, deep purification and stable operation of pulping and papermaking wastewater are achieved through system overall structure optimization and core assembly collaborative design, aerators arranged in the aeration tank in an array mode can form a spiral ascending flow state and a bottom negative pressure entrainment effect on the basis of the fluid dynamics principle, and the aeration effect is improved. The particle size of bubbles is effectively refined, the gas-liquid contact time is prolonged, the oxygen transfer efficiency is greatly improved, and the uniform distribution of dissolved oxygen in the tank can be ensured through the distributed layout of multiple groups of anti-corrosion gas supply manifolds and high-pressure gas supply nozzles in the oxidation decoloration tank.

This invention discloses a method for treating ammonia-containing tail gas, relating to the field of ammonia-containing tail gas treatment. The method involves the ammonia-containing tail gas entering from the bottom of an acid washing tower and passing sequentially from bottom to top through a bottom washing liquid zone, a first packing zone, a second packing zone, a spray zone, and a demister for treatment. The spray zone uses atomizing nozzles to spray out a mixed washing liquid, controlling the pH value and conductivity of the washing liquid. Each atomizing nozzle includes a nozzle body, a first chamber, multiple diversion holes, a second chamber, and an outlet hole formed on the nozzle body and connected sequentially. The opening width of the diversion holes is smaller than the opening width of the outlet holes, and the width of the outlet holes increases along the axial direction. The orthographic projections of the diversion holes and the outlet holes on the end face of the nozzle body near the outlet hole do not intersect. This method can achieve efficient removal of ammonia from the tail gas even when the pH value of the washing liquid is high, resulting in a low acid mist value in the tail gas. It eliminates the need for a secondary water washing tower for treatment, thus reducing costs.

The application discloses carbonation reinforced coral reef aggregate and a preparation method thereof, and comprises the following steps: mixing 100 parts of carbonation cementing material, 40-70 parts of water and 1-5 parts of cellulose according to mass fraction, fully stirring to obtain a slurry; placing coral reef aggregate A on a screen and fully soaking the coral reef aggregate A in the slurry, taking out the coral reef aggregate A after oscillating the screen for a period of time to obtain coral reef aggregate B; pre-drying the coral reef aggregate B to obtain coral reef aggregate C; and carbonation curing the coral reef aggregate C in a carbon dioxide environment to obtain the carbonation reinforced coral reef aggregate. The application can make more carbonation cementing material penetrate into the pores of the coral reef aggregate under the same water-solid ratio, and can discharge air bubbles in the aggregate by oscillation, so that the pores can be filled with the carbonation cementing material. Then, the carbonation curing technology is used to carbonize calcium silicate and other minerals in the carbonation cementing material to generate calcium carbonate to fill the pores, reduce the water absorption and improve the mechanical properties of the coral reef aggregate.

The invention discloses a mixture purification and separation process and equipment based on melt crystallization, which comprises the following steps: feeding a crude product material into a crystallization purification device through a crude product storage tank to obtain a high-purity target crystal and a low-purity mother solution; the low-purity mother liquor is fed into a mother liquor storage tank to serve as a material to be purified again; the crystals with higher purity are subjected to countercurrent washing in the crystallization purification device, and impurities on the surface layer are melted and taken away to obtain a high-purity target crystal product; and melting the high-purity crystal to obtain a liquid product or granulating to obtain a solid product. A crude product is conveyed to a second crystallization area through a raw material pump and then is in contact with a cold material to be crystallized and separated out, and a solid falls to a third crystallization area; and the crystals passing through the washing area enter the melting area to be melted, and the melted liquid part is extracted, so that a high-purity product can be obtained.

The invention discloses a waste tire recycling method and a road widening construction method, belongs to the technical field of solid waste utilization, and is used for solving at least one problem in the prior art that the comprehensive utilization rate of waste tires is low and the treatment of the waste tires is easy to pollute the environment. In the sorting device adopted by the recycling method, no through hole is formed in the first plate body; a feeding port of the sorting cavity is located above the first screen, the upper end of the first screen is connected with the side wall of the sorting cavity, the lower end of the first screen is connected with the upper end of the first plate body, the lower end of the first plate body is located above the second screen, and the aperture of the first screen is smaller than that of the second screen. A gap is formed between the projection of the first screen and the projection of the second screen in the vertical direction, a feeding port of the second collecting bin is located under the first screen, a feeding port of the first collecting bin is located under the second screen, and the third collecting bin is located under the first plate body. The method can be used for recycling the waste tires.

The invention belongs to the technical field of food, and particularly relates to a preparation method of crystalline lactulose. The preparation method of the crystalline lactulose comprises the following steps: (1) weighing lactulose powder, dissolving in water, heating and stirring to obtain a lactulose solution; (2) adding a composite regulating agent into the lactulose solution obtained in the step (1), and monitoring the viscosity to obtain a mixed solution; (3) adding lactulose crystal seeds into the mixed solution obtained in the step (2) for induced crystallization; then gradient cooling crystallization is adopted; (4) after crystallization is completed, carrying out heat preservation, separation, washing and drying to obtain a lactulose crystal product, and collecting mother liquor for cyclic utilization; according to the preparation method of the crystalline lactulose, the viscosity of the mother liquor can be reduced, the product purity is high, and the yield is high.

The utility model relates to the field of buildings, in particular to a multifunctional heat shielding coating structure. Comprising a base layer, an anti-crack coarse mortar layer, a first primer layer, an aerogel heat insulation floating coat, an aerogel primer layer and a heat reflection heat insulation coating layer which are sequentially arranged from inside to outside. The utility model provides a multifunctional heat shielding coating structure which can reduce the cracking and falling risks of a coating and improve the heat insulation performance.

The utility model aims to provide suspension high-shear dispersion preparation mixing equipment which comprises a dispersion machine, a stirring disc is arranged at the bottom of a main shaft, and the stirring disc comprises a second dispersion disc positioned at the bottom end of the main shaft, and a middle guide paddle and a first dispersion disc which are positioned above the second dispersion disc. The utility model relates to the technical field of mixing equipment, and adopts a multi-stirring impeller which combines a first dispersion disc and a second dispersion disc and is provided with a middle guide paddle between the first dispersion disc and the second dispersion disc, so that the stirring mode of a traditional single rectangular tooth dispersion impeller is changed; and the solution is rolled to the upper part by the second dispersion disc to be in contact with the first dispersion disc for secondary shearing. After secondary shearing, the particle size can be further refined, and the distribution is more uniform, so that the dissolution speed and bioavailability of the medicine are improved, and the curative effect of the medicine is ensured. Compared with the traditional equipment that the single-time stirring time is more than 15 minutes, the equipment disclosed by the utility model can obviously reduce the single-time stirring time.

The invention provides a platinum-bismuth alloy catalyst, a preparation method thereof and a direct methanol fuel cell, and belongs to the technical field of electrochemical catalysts. The method comprises the following steps: mixing carbon black with an acidic aqueous solution, and sequentially carrying out acidizing treatment and roasting treatment to obtain pretreated carbon black; mixing the pretreated carbon black, Bi2O2CO3, a platinum source, a precipitant, a pH regulator, a first dispersing agent and first water, and performing replacement reaction to obtain a suspension; mixing a reducing agent, a second dispersing agent and second water to obtain a mixed solution; dropwise adding the suspension into the mixed solution for reduction reaction to obtain a catalyst precursor; and calcining the catalyst precursor under first protective gas to obtain the platinum-bismuth alloy catalyst. The prepared platinum-bismuth alloy catalyst has excellent electro-catalytic performance, shows relatively high catalytic activity and cycling stability, and can be applied to oxygen reduction reaction of a cathode of a direct methanol fuel cell.

The present application relates to the technical field of paint, in particular to an alkali-resistant waterproof exterior wall paint and a preparation method thereof. In order to further improve the water resistance and alkali resistance of the stone-like paint, the stone-like paint is improved, a texture protective paint is added to the structure of the traditional stone-like paint, and colored sand is added to the components, so that a concave-convex texture can be provided for the surface of the stone-like paint after the stone-like paint is finally formed. In addition, boron nitride nanosheets are added to the texture protective paint and modified, and fluorine and silicon elements are introduced into the boron nitride nanosheets, so as to improve the chemical corrosion resistance of the resin, prevent the infiltration and invasion of external corrosive media, and effectively improve the acid and alkali resistance of the resin paint.

The application relates to the technical field of wastewater treatment, and particularly discloses a high-efficiency recovery and biochemical carbon source method for sodium acetate in acephate wastewater. The high-efficiency recovery and biochemical carbon source method for sodium acetate in acephate wastewater comprises the following steps: solvent recovery, high-temperature hydrolysis, methanol recovery and evaporation concentration are performed on acephate wastewater to obtain a salt-containing concentrated mother liquor and condensate water A; the salt-containing concentrated mother liquor is subjected to centrifugal separation to separate out a mixed salt containing sodium sulfate and sodium phosphate, and a salt-separated mother liquor is obtained; the salt-separated mother liquor is continuously cooled and crystallized to obtain a crystal slurry containing sodium acetate crystals; the crystal slurry containing the sodium acetate crystals is subjected to centrifugal separation to obtain a sodium acetate product and a crystallization mother liquor; part of the crystallization mother liquor is returned to a sodium acetate crystallization system to adjust the solid content of the crystal slurry, and the other part is subjected to drying treatment to obtain a mixed salt and condensate water B; the condensate water A and the condensate water B are sent to a biochemical system for treatment, and treated water is obtained.

The application discloses a stable and efficient inflatable mine flotation machine, which comprises a flotation column, a feeding mechanism, an inflation pump, a gas supplement mechanism, an aeration mechanism, a flow guide mechanism and a mixing mechanism. The feeding mechanism comprises a slurry pump and a mixing cylinder. The slurry pump is fixedly installed on the upper side of a mounting beam, and the mixing cylinder is fixedly installed on the middle part of the mounting beam. The slurry pump is in communication with the inside of the mixing cylinder and is used for realizing stable conveying and preliminary mixing of slurry. The gas supplement mechanism comprises a gas supplement pump, a gas distribution pipe and a gas distribution hole. A separate inflation pump primary gas supply structure and a gas supplement mechanism secondary gas supplement structure are arranged to form a multi-stage gas mixing system in cooperation with the internal mixing mechanism of the mixing cylinder. The inflation pump precisely supplies air through the inflation cover and the air inlet hole opposite the jet area of the slurry nozzle, and realizes primary negative pressure air mixing by using the high-speed jet negative pressure of the slurry. The gas supplement pump realizes circumferential uniform secondary air supplement in cooperation with the annular gas distribution pipe, the gas distribution hole and the gas guide cover, and avoids air floating and escaping.

The invention provides a novel flight control additive as well as a preparation method and application thereof, and relates to the technical field of agricultural flight control. The self-emulsifying Pickering emulsion is prepared from the following components in percentage by mass: 65%-92% of an oil phase matrix, 5%-20% of solid particles and 3%-15% of an emulsifying auxiliary agent, and the solid particles are micron-sized solid particles. The preparation method comprises the following steps: premixing the solid particles and the emulsifying auxiliary agent; adding the pre-mixture into an oil phase matrix, and carrying out high-speed shearing dispersion; carrying out high-pressure homogenization treatment on the dispersion system; and performing curing treatment on the homogeneous mixture to obtain the product. The application is the application in agricultural flight prevention. Through compounding of the oil phase matrix, the solid particles and the emulsifying auxiliary agent, the solid particles are stably dispersed in the oil phase under the action of the emulsifying auxiliary agent, and can spontaneously form a stable Pickering emulsion when being diluted with water, so that the purposes of low cost, excellent performance and convenience in use are achieved.

This invention belongs to the field of peroxide production technology, specifically relating to a continuous production apparatus and method for lauroyl peroxide. The continuous production apparatus for lauroyl peroxide includes a primary reactor, to which a secondary reactor, a tertiary reactor, and a filter tank are sequentially connected. Each of the primary, secondary, and tertiary reactors is equipped with a stirrer, with a spiral plate threaded onto its upper part. A motor is connected to the top of the stirrer. A conveyor belt is installed inside the filter tank, and a mother liquor outlet is located in the center of the bottom plate. The bottom plates on both sides of the mother liquor outlet are inclined. A primary washing tank, a secondary washing tank, and a tertiary washing tank are sequentially connected to the filter tank. Each of the primary, secondary, and tertiary washing tanks is equipped with a filter screen and a sprayer. This invention employs a multi-reactor series continuous production process, resulting in higher production efficiency and more stable operation.