378 results about "Spray dryer" patented technology

A power plant desulfurization wastewater treatment method belongs to the technical field of water treatment. The method comprises the following steps: S1, pretreatment of the desulfurization wastewater: adding a coagulant and a polymer coagulant aid to remove suspended solid particles in the desulfurization wastewater to obtain pretreated effluent; s2, collecting sludge generated by pretreatment; s3, feeding the desulfurization wastewater into an ozone catalytic reactor, and catalyzing ozone oxidation by using a heterogeneous solid catalyst to remove ammonia in the desulfurization wastewater; s4, adding calcium sulfate seed crystal and desulfurization wastewater, uniformly mixing in a seed crystal mixer, and feeding into a triple-effect circulating evaporation concentrator; s5, allowing the concentrated solution desulfurization wastewater to enter a crystal collection tank for precipitation, discharging and recycling large-particle crystals, allowing supernate in the collection tank to flow back to the crystal seed mixer for supplementing crystal seeds, and feeding effluent of the collection tank into a rotary spray dryer for treatment; and S6, carrying out rotary spray drying on the concentrated solution desulfurization wastewater to realize zero discharge of the wastewater. The method is used for treating the desulfurization wastewater of the power plant.

The invention provides a titanium carbide preparation process, and relates to the technical field of carbide preparation, the titanium carbide preparation process comprises the following steps: S1, selecting ilmenite with the phosphorus content of less than 100 ppm, crushing, reducing, concentrating, hydrolyzing, washing and filtering to generate a titanium dioxide filter cake; the pore diameter of titanium dioxide is controlled to be 1-5nm, the phosphorus content is less than 50ppm, and the sulfur content is less than 0.1%; s2, pulping the titanium dioxide filter cake obtained in the step S1 to form primary slurry, adding carbon black according to the content of titanium dioxide, and uniformly stirring to form secondary slurry; s3, continuously stirring the secondary slurry, and pumping the secondary slurry into a spray dryer for spray drying to generate titanium dioxide-carbon black particles; and S4, the titanium dioxide-carbon black particles pass through a high-temperature roasting area under the action of airflow and gravity to generate titanium carbide powder. According to the method, the mixing uniformity of the carbon black is larger than or equal to 95%, the yield of the titanium carbide is increased to 99.5% or above, and the quality and the yield of the finished titanium carbide are greatly improved.

The invention discloses a preparation method of an efficient lithium oxalate lithium supplement agent, and relates to the field of preparation of lithium ion battery positive electrode lithium supplement agents, and the preparation method comprises the following steps: S1, adding CNTs into an organic solvent for ultrasonic cleaning, then cleaning the CNTs with pure water, and finally drying; s2, concentrated sulfuric acid and concentrated nitric acid are prepared into a mixed acid solution, CNTs are added, and ultrasonic reflux is carried out; then cleaning the CNTs until the washing water is neutral, and finally drying to obtain oxidized CNTs; s3, the oxidized CNTs and (NH4) 2MoS4 are dissolved in water, then the precursor solution is atomized into micron-sized liquid drops, the micron-sized liquid drops are cracked in an inert atmosphere, and a three-dimensional composite material MoSx-CNTs is prepared; and S4, dissolving the three-dimensional composite material MoSx-CNTs and lithium oxalate in an ethanol solution, and drying in an inert atmosphere in a high-pressure spray dryer to obtain the lithium oxalate-coated MoSx-CNTs composite material. According to the invention, low-voltage and efficient decomposition of lithium oxalate is realized by regulating and controlling metal nodes and pore structures of MOFs, and meanwhile, the damage of residues to the microstructure of the battery is avoided.

The invention discloses a method for purifying sialic acid from fermentation liquor, and belongs to the field of biochemical engineering separation and purification. The method comprises the following steps: firstly, concentrating sialic acid biological fermentation liquor by adopting membrane separation, adjusting the pH value of the concentrated liquor to 7-11, loading a sample on a boric acid affinity chromatography column, respectively washing with water and acid water, and collecting a sialic acid eluate; adjusting the pH value of the saliva acid eluate to 5-10, loading the saliva acid eluate to anion exchange resin, washing with water and acid water to obtain a resin desorption solution, and adding the resin desorption solution into a spray dryer for drying to obtain a sialic acid finished product. The stable five-membered ring complex is generated by utilizing the action of a boric acid group and a dihydroxyl structure in sialic acid. According to the method, the sialic acid is subjected to complexing under an acidic condition, molecules are eluted from a medium, selective separation of the sialic acid is realized, the sialic acid is further refined and purified by adopting anion exchange resin, high-purity sialic acid is prepared, introduction of a crystallization process is avoided, and use of an organic solvent and an acid reagent is greatly reduced.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a lithium nickel cobalt aluminate / carbon composite positive electrode material with a core-shell structure and a spray drying process thereof, the lithium nickel cobalt aluminate / carbon composite positive electrode material comprises the following raw materials: a lithium source, an iron source, a phosphorus source, a carbon source and a solvent; the method specifically comprises the following steps: S1, dissolving a lithium source, an iron source, a phosphorus source and a carbon source in a solvent, mixing according to a stoichiometric ratio, adjusting the pH value by using ammonia water or citric acid, and adding a binder to adjust the viscosity to obtain a precursor solution; s2, atomizing the precursor solution into tiny liquid drops by a centrifugal or pressure type spray dryer through a nozzle or a centrifugal disc, and staying the liquid drops in a tower for 4-10 seconds to obtain a dried microsphere precursor; s3, presintering the dried microsphere precursor in an inert atmosphere at 300-400 DEG C through a firing device, and removing volatile components; and S4, cooling the pre-sintered and dried microsphere precursor, and calcining in the firing device again to form crystals.

The invention relates to a spherical micron phosphate fertilizer with high fertilizer efficiency and a preparation method thereof. The preparation method of the spherical micron phosphate fertilizer with high fertilizer efficiency comprises the following steps: reacting a crystal form control agent and monocalcium phosphate in water for at least 12 hours, and performing spray drying through a spray dryer to obtain the spherical micron phosphate fertilizer. According to the spherical micron phosphate fertilizer with high fertilizer efficiency and the preparation method thereof, the preparation method is simple, the cost is low, the reaction conditions are mild, and the prepared spherical micron phosphate fertilizer is small in size and high in fertilizer efficiency.

The invention relates to the technical field of spray dryers, and provides a traditional Chinese medicine extract spray dryer which comprises a fixed tank body, a base, a discharging assembly, a charging assembly, an exhaust frame, a drying assembly, a collecting pipe and a collecting assembly, the base is arranged on the side portion of the fixed tank body, the discharging assembly is installed on the base, and the charging assembly is installed at the top of the fixed tank body; the air exhaust frame is fixedly installed on the top of the fixed tank body, the drying assembly is installed on the air exhaust frame, the collecting pipe is communicated with a discharging port of the fixed tank body, the collecting assembly is installed on the fixed tank body, and the collecting assembly is communicated with the other end of the collecting pipe. The problems that due to the fact that particles are different in size, some components volatilize much, the quality of the particles is poor, and follow-up collection is affected are solved.

A method for preparing sodium vanadium fluorophosphate as a positive electrode material for sodium-ion batteries on the basis of spray drying, which method aims to solve the problems of poor electronic conductivity and fluorine loss in sodium vanadium fluorophosphate as a positive electrode material for sodium-ion batteries. The method comprises dissolving a carbon source, a phosphorus source, a sodium source and a vanadium source in water, and then drying same in a spray dryer to obtain a precursor powder; and then uniformly mixing the precursor powder with a fluorine source, and calcining the resulting mixture for 3-6 h to obtain sodium vanadium fluorophosphate, namely, a positive electrode material for sodium ion batteries. The material is made of micron spherical particles having a core-shell structure, the particle size is about 8 μm, the shell thickness is about 200 nm, the initial specific discharge capacity is 110.60 mAh / g at a rate of 1 C, and the specific discharge capacities are 97.90 mAh / g and 74.70 mAh / g at rates of 10 C and 30 C, respectively. The present invention can be used in the field of sodium-ion batteries.

The invention relates to the technical field of cereal milk tea preparation, in particular to sea-buckthorn cereal milk tea and a preparation method thereof.The method comprises the steps that sodium caseinate is stirred and dissolved in deionized water and then subjected to water bath to obtain a sodium caseinate solution, and soy isoflavone is fused into the cooled sodium caseinate solution to obtain a film forming solution; performing vacuum spray drying on the hippophae rhamnoides fruit solution through a vacuum spray dryer to obtain hippophae rhamnoides fruit powder particles, and mixing the film-formed fried rice, the hippophae rhamnoides fruit powder particles and ingredients to obtain the hippophae rhamnoides fruit grain milk tea, determining whether the preparation stability of the hippophae rhamnoides fruit grain milk tea meets the requirement or not based on the maximum difference quantity of the thickness of the film layer on the surface of the film-formed fried rice; determining whether the immersion depth of the stirring blades needs to be increased or not; determining whether the inclination angle of the drum needs to be reduced; and determining the number of cyclic shearing times based on the volume average particle size of the sea buckthorn fruit powder particles. The preparation stability of the hippophae rhamnoides fruit grain milk tea is improved.

The invention relates to the technical field of spray drying, and discloses an environment-friendly spray dryer which comprises a drying tank, a spraying device, a drying device, a scraping device, a discharging pipe, a ventilating pipe and an air filter, a main body of the drying tank is a cylindrical tank, the lower end of the drying tank is funnel-shaped, and the spraying device is arranged on the drying tank and used for spraying mist materials. The drying device is arranged on the drying tank and used for drying vaporific materials, the scraping device is arranged on the drying tank and used for scraping away attached materials, the discharging pipe penetrates through the bottom of the drying tank and is internally and externally communicated, the ventilation pipe penetrates through the side wall of the drying tank and is internally and externally communicated, and the air filter is arranged in the middle of the ventilation pipe. Through circumferential scraping and brushing of the first scraping plate and the second scraping plate, scraping and brushing dead angles are avoided, the problem that materials adhere to the wall is effectively solved, residual accumulation of the materials in equipment is reduced, then waste gas VOCs caused by the fact that the materials adhere to the wall are prevented from being attached to residual dust, and the product quality is improved.

The utility model discloses a three-fluid spray dryer for sodium ion preparation, which comprises a tower body, a cyclone separator is mounted in the tower body, a drying bin is arranged between the top of the cyclone separator and the tower body, a hot-air blower is mounted on the right side of the tower body, the output end of the hot-air blower is connected with an input pipe, and the output end of the input pipe is connected with an output end of the tower body. And the other end of the input pipe is inserted into the tower body and is fixedly connected with a spiral exhaust pipe. A sodium ion solution is atomized and sprayed into the drying bin by matching with the spraying mechanism, the area of the atomized liquid is increased to be in contact with high-temperature air, so that quick drying is realized, meanwhile, the cyclone separator is started to suck in a dried mixture and separate solid particles, and gas is discharged through the discharging mechanism, so that the drying efficiency is improved. And operation of the device is conveniently controlled through the control panel, so that the device has the advantages that hot air makes more uniform contact with atomized liquid, the drying efficiency is higher, and the working efficiency of the device is improved.

The invention relates to the technical field of preparation of a lithium ion battery positive electrode lithium supplement agent, in particular to preparation of a composite lithium supplement agent, which comprises the following steps: dissolving lithium hydroxide and oxalic acid in pure water to prepare a lithium oxalate saturated solution, and adding a metal catalyst; preparing lithium oxalate particles from the lithium oxalate saturated solution containing the metal catalyst through a spray dryer in an inert atmosphere; the lithium oxalate particles are put into a CVD rotary furnace, organic steam is introduced, the organic steam is decomposed through a metal catalyst to generate carbon, and the carbon is deposited on the surface of lithium oxalate; reducing the temperature of the CVD rotary furnace, introducing a silicon source, introducing water vapor, and coating the surface of the material with a SiO2 film; and reducing the temperature of the CVD rotary furnace, introducing a modifier, and carrying out a cross-linking reaction on the modifier and the surface of the material to obtain the final product Li2C2O4 (at) C (at) SiO2 (at) CF3. According to the invention, the defects of lithium oxalate insulation, high decomposition voltage and poor air stability are overcome.

The invention relates to a copper-iron bimetallic Fenton-like catalyst and a preparation method and application thereof.The preparation method comprises the steps that copper salt, iron salt and gamma-Al2O3 are mixed in deionized water and stirred through a mechanical stirring rod, and a mixed steeping liquor is obtained; carrying out spray drying on the mixed impregnation liquid on a spray dryer, and preliminarily removing moisture to obtain a precursor of the copper-iron bimetallic Fenton-like catalyst; and calcining the precursor of the copper-iron bimetallic Fenton-like catalyst in a tubular furnace to obtain the copper-iron bimetallic Fenton-like catalyst. The catalyst provided by the invention has the characteristics of easy recovery, high catalytic activity and the like, and solves the problems of low catalytic efficiency of an iron-based catalyst and difficult recovery of a copper-based catalyst in the prior art.

A high-speed centrifugal spray dryer capable of spraying evenly comprises a dryer body, two connecting plates are fixed to the middle of the dryer body, a connecting box is rotatably connected between the two connecting plates, a suction pump is fixed to the lower end of the dryer body and communicated with a connecting pipe, and the connecting pipe is fixedly connected with the connecting box. A supporting plate is fixed to the drying machine body, two mounting plates are fixed to the supporting plate, a through hole is formed in the supporting plate, an eccentric gear assembly is arranged between the two mounting plates, the eccentric gear assembly comprises a first eccentric gear, a second eccentric gear and two clamping plates, and a first motor is mounted on each mounting plate; connecting rods are rotationally connected to the two sides of the second eccentric gear, a fixing rod is fixedly connected between the two connecting rods, a lifting rod is fixed to the fixing rod, and the bottom end of the lifting rod is rotationally connected with the connecting box. According to the utility model, the spraying angle can be adjusted, and the uniformity of spraying work can be better ensured.

The invention discloses a rapidly synthesized ferric sodium pyrophosphate electrode material, a preparation method thereof and a positive electrode. Relates to the technical field of batteries. The preparation method comprises the following steps: S1, mixing a sodium source, an iron source, a phosphorus source and a carbon source, adding a preset volume of deionized water, and stirring until the raw materials are completely dissolved to obtain a light yellow transparent solution; s2, adding a preset amount of modified carbon nanotubes into the light yellow transparent solution, and dispersing in an ultrasonic environment to obtain a stable suspension; s3, starting a spray dryer, and collecting yellow green spherical precursor powder from a discharge port; s4, placing the yellow green spherical precursor powder obtained by spray drying in a magnetic boat, and carrying out heat preservation at 300 DEG C in a pure argon environment at a heating rate of 2 DEG C / min for 5 h to obtain black powder; and S5, transferring the black powder into Joule thermal equipment, and reacting for a preset time under a preset condition to obtain a final black powdery product. Through innovative process design and material modification, the core problems of long period, poor conductivity, low tap density and the like in the traditional preparation technology are solved.

The invention belongs to the technical field of cosmetics, and particularly relates to ultrasonic-assisted composite protease hydrolyzed pea protein as well as a preparation method and application thereof. The preparation method comprises the following steps: raw material treatment, high-temperature sterilization, ultrasonic enzymolysis of a compound protease mixed solution, enzymatic hydrolysate separation, supernate separation, spray drying and obtaining of a target product pea peptide, pea protein is hydrolyzed by compound protease to obtain the pea peptide with the molecular weight of 6000u or below and an anti-wrinkle function, and enzyme deactivation treatment is performed at high temperature to obtain the pea peptide with the anti-wrinkle function. Filtering by using an ultrafiltration fiber membrane, separating from the inactivated enzymatic hydrolysate, drying by using a spray dryer to prevent oxidation in the drying process, and hydrolyzing the pea protein by using a compound enzyme to obtain the pea protein peptide; the obtained product easily and directly enters deep skin through the surface layer of the skin, is quickly absorbed by the skin of a human body to play a role, and has higher biological activity and bioavailability. The anti-wrinkle peptide is prepared from pea protein, resources can be fully utilized, waste is turned into wealth, and waste of raw materials is reduced.

The invention relates to the technical field of filling agents, and particularly discloses a lactose and microcrystalline cellulose blend preparation method which comprises the following steps: sieving lactose through a 80-mesh sieve, and removing impurities through ultrasonic assistance; the preparation method comprises the following steps: carrying out surface modification on microcrystalline cellulose by using a silane coupling agent, adding 183L of purified water into a mixing tank, stirring, preheating lactose to 50-60 DEG C, adding, dissolving, adding microcrystalline cellulose, and stirring until the microcrystalline cellulose is swelled; lactose is added and stirred to be uniform, and mixed liquid is obtained; high-temperature air inlet is set for the spray dryer for spray drying. And screening and mixing the dried granules, and packaging the granules with PE (polyethylene) bags, wherein each bag is 20Kg. According to the method, the process is simplified, the energy consumption is reduced, the production efficiency and the product quality are improved, the method is suitable for the pharmaceutical preparation industry, the tedious step that process water is firstly heated and then cooled in the traditional process is omitted, the energy consumption is reduced, the production period is effectively shortened, the consumption of water resources is reduced, and the overall production efficiency is improved.

The present invention relates to a low-temperature spray drying device, belonging to the technical field of spray dryers. The low-temperature spray drying device includes a fixing frame and a drying tank fixedly connected inside the fixing frame. A tank cover is installed on the top of the drying tank. A gas treatment mechanism and a finished product collection mechanism are installed on the outer surface of the fixing frame. It further includes: a wall scraping mechanism; a gas guiding mechanism; a filter screen; a crushing mechanism; a conveying mechanism. Through the arrangement of the scraper, the present invention enables the scraper to scrape off the atomized materials adhering to the inner wall of the drying tank and the granular materials adhering to the inner wall of the drying tank that are not dried, avoiding the adhesion of materials on the inner wall of the drying tank, resulting in the aggregation of materials, affecting the particle size of the produced finished product, and causing the particle size of the produced finished product to not meet the requirements. Furthermore, it ensures that the particle size of the produced granular materials meets the requirements and that the moisture content of the produced granular materials meets the production requirements.

The utility model relates to the field of chemical production equipment, in particular to a stirring and feeding device suitable for a spray dryer, which comprises a stirring kettle and a transmission component, a circulating heating assembly is arranged outside the stirring kettle, a stirring shaft is arranged inside the stirring kettle, and the stirring shaft is connected with the transmission assembly; the stirring shaft is of a hollow structure, an opening is formed in the upper end of the stirring shaft, a plurality of holes with different sizes are formed in the lower end of the stirring shaft, and compressed air is introduced into the stirring shaft through the opening and is released through the holes; and the stirring shaft is connected with a stirring paddle. According to the utility model, the circulating heating assembly is arranged outside the stirring kettle, so that the temperature of the slurry can be maintained in a relatively high state and the viscosity of the slurry can be maintained, and a relatively good atomization effect is achieved in the spray drying process. Compressed air is introduced into the bottom of slurry from the stirring shaft, and the compressed air moves upwards to drive the slurry to move longitudinally, so that slurry precipitation can be effectively reduced, and the uniformity of the slurry is better guaranteed.

The application belongs to the field of fine chemical industry and environmental protection, and particularly relates to a method for preparing metal triflate by using high gravity reaction. The method comprises the following steps: 1, using trifluoromethylsulfonyl chloride and anhydrous HF gas as raw materials to generate trifluoromethylsulfonyl fluoride gas; 2, performing gas-liquid contact reaction of the trifluoromethylsulfonyl fluoride gas with an alkali metal solution to obtain a mixed solution; 3, performing solid-liquid separation on the mixed solution by using a filter press, and the liquid phase is a triflate salt solution; 4, drying the triflate salt solution by using a spray dryer to obtain a solid-phase product triflate salt. The method uses trifluoromethylsulfonyl chloride and anhydrous HF as raw materials to replace triflic acid in the traditional method, and utilizes high gravity reaction, so that the production cost is greatly reduced. The process is simple, the obtained product triflate metal salt has low impurity content, is superior to the industry standard, the process is zero emission, and has good economic value and social value.

The utility model discloses a combined circulating spray dryer which comprises a drying tank, a fixed supporting frame which is used for adjusting the rotating angle of the drying tank and is convenient to disassemble and assemble is arranged outside the drying tank through a rotating shaft rod, and a servo motor set which is used for adjusting the driving angle of the drying tank is arranged outside a supporting vertical plate on one side of the fixed supporting frame. The servo motor drives the driving rotating rod to rotate, and the driving rotating rod drives the drying tank to rotate, so that the inclination angle of the drying tank can be adjusted, a combined lifting tank cover on the drying tank can follow the drying tank to move at the inclination angle, and the drying tank can be moved to an inclined horizontal state; the combined lifting tank cover is adjusted from a high position to a position suitable for disassembly, assembly and maintenance for maintenance, and the combined lifting tank cover is separated from the drying tank in a pneumatic mode, so that the drying disassembly and assembly stirring shaft can be displayed at the position suitable for disassembly, assembly and maintenance, and the drying tank is easier and more convenient to disassemble and maintain. And the disassembly and maintenance time is shortened.

The utility model discloses a plant extracting and drying device, which belongs to the technical field of drying devices and comprises a spray drying mechanism and a feeding mechanism, the spray drying mechanism comprises a drying tower and a first nozzle, the drying tower is sealed, the first nozzle is arranged at the top of the drying tower, one end of the first nozzle is provided with a feeding port, and the other end of the first nozzle is provided with a discharging port. The other end of the first nozzle is located in the drying tower, the feeding mechanism comprises a feeding pipeline, the feeding pipeline is communicated with the feeding port, and a discharging port is formed in the bottom of the drying tower; the first nozzle comprises a connecting part and a centrifugal part, the connecting part is connected with the feeding port, the centrifugal part is connected with the other end of the connecting part, and the centrifugal part is located in the drying tower; the diameter of the centrifugal part is gradually increased in the direction from the connecting part to the interior of the drying tower, the first nozzle is provided with the connecting part and the centrifugal part, and the diameter of the centrifugal part is gradually increased along the outer side, so that spray with large width and uniform distribution can be generated, and the drying efficiency is improved.

The invention belongs to the technical field of medicine, and particularly relates to an aprepitant nanocrystalline composition and a preparation method and application thereof.The aprepitant and a sucrose solution are mixed, a stabilizer is added to obtain a solution to be ground, the solution to be ground is ground through a wet grinding process, and the aprepitant nanocrystalline composition is obtained; uniformly mixing the suspension with a spray drying protective agent and a flow aid to obtain a mixed solution, and drying and curing the mixed solution by adopting a spray dryer to obtain the aprepitant nanocrystal composition in the form of a dry suspension, and directly spray-drying the suspension, uniformly mixing the suspension with a skeleton agent and an adhesive, adding water to a constant volume, carrying out vacuum degassing, and carrying out pre-freezing and freeze-drying to obtain the freeze-dried orally disintegrating tablet type aprepitant nanocrystal composition.

The utility model discloses an atomizing nozzle, a spray dryer and production equipment of powder for batteries, and the atomizing nozzle comprises a first gas hole channel which comprises a first gas output part located on the end face of the atomizing nozzle; the gas guide component comprises a gas inlet part communicated with the first gas output part and a gas exhaust part arranged in the circumferential direction of the first gas output part and communicated with the gas inlet part, and the gas exhaust part is configured to output gas at multiple angles in the circumferential direction of the first gas output part along the end face; the liquid hole channel is arranged in the cross section perpendicular to the first gas hole channel in the circumferential direction of the first gas hole channel, the liquid hole channel comprises a liquid output part which is arranged on the end face and arranged in the circumferential direction of the gas guiding component, and the direction of the liquid output part intersects with the direction of the exhaust part; and the second gas hole channel is arranged in the cross section in the circumferential direction of the liquid hole channel, the second gas hole channel comprises a second gas output part arranged on the end face, and the orientation of the second gas output part intersects with the orientation of the exhaust part.

The invention relates to the technical field of drainage equipment of drying towers, in particular to drainage equipment of a drying tower of a pressure spray dryer, which comprises a tower body, an annular water collecting tank is fixedly mounted in the tower body, a drainage pipe is mounted on the side surface of the tower body, a fixed shaft is fixedly mounted on the side wall of the water collecting tank, and a support rod rotatably sleeves the fixed shaft. A sealing plate is fixedly installed at the lower end of the supporting rod and makes contact with one end of the drainage pipe, a hemispherical cover is fixedly installed at the upper end of the supporting rod, the mass of the sealing plate is larger than that of the hemispherical cover, and a check block is fixedly installed in the water collecting tank and makes contact with the sealing plate. And a power assembly for driving condensed water in the water collecting tank to flow is arranged in the tower body. When condensate water in the water collecting tank is drained, materials float on the water surface through buoyancy, the materials are prevented from entering the drainage pipe and blocking the drainage pipe, and use of drainage equipment is guaranteed.

The utility model discloses a multifunctional spray dryer which comprises a tank body and further comprises a hot air pipe installed on the outer wall of the tank body, the two ends of the inner wall of the top of the hot air pipe are connected with flow dividing assemblies, a drainage assembly is installed on the outer wall of the hot air pipe, and a stirring assembly is rotatably installed on the drainage assembly. An exhaust assembly is mounted on the outer wall of the other side of the tank body, and a collecting box is mounted at the bottom of the tank body. Liquid mist can flow between the drainage assembly and the inner wall of the tank body after being sprayed out through the drainage assembly, the situation that fog drops in the conical interior are possibly difficult to make complete contact with hot air, and the drying effect is affected is avoided, meanwhile, when hot air is introduced into the tank body, the stirring assembly can be blown to rotate, and the drying effect is affected. Hot air flow and liquid mist can be stirred together conveniently, the hot air flow and the liquid mist make more sufficient contact, the drying effect can be further improved, air in the tank body is exhausted through the exhaust assembly, and the exhausted air flow can be filtered through a filtering structure at the bottom of the exhaust assembly.

The utility model relates to the technical field of atomizing nozzles, and discloses a multifunctional integrated spray dryer atomizing nozzle which comprises a shell, a nozzle is fixedly connected to the bottom of the shell, a filter screen is fixedly connected to the interior of the shell, and two buffering assemblies used for buffering impact force are fixedly connected to the top of the filter screen. The top of the buffering assembly is fixedly connected with a power assembly used for smashing impurities, the top of the power assembly is rotationally connected with a blade, and the interior of the power assembly is slidably connected with a sliding block. According to the utility model, water enters the shell, the sliding block in the clamping groove is made to move through the flushing force of the water, the blades are made to rotate, so that some impurities are crushed, filtered through the filter screens and sprayed out along the nozzle, the spring is arranged between the filter screens, and the flushing force of the water enables the spring to be extruded; and the punching force can be reduced, and certain buffering is achieved.

The utility model relates to the technical field of spray drying equipment, in particular to an anti-stockpiling spray dryer which comprises a spray dryer body, a discharging assembly is arranged on the lower portion of the spray dryer body, the discharging assembly comprises a receiving hopper connected with the spray dryer body, a discharging channel is arranged on the lower portion of the receiving hopper, and the discharging channel is communicated with the discharging assembly. The anti-blocking device used for assisting in discharging is arranged in the discharging channel, materials in the discharging channel can be scattered through the anti-blocking device, the phenomenon that the materials are excessively stacked is avoided, and the operation stability and the production efficiency of the device are improved.

The present invention discloses a low-cost aerosol preparation process for catalyst powder, which specifically comprises the following steps: step 1: providing a solid catalyst material with catalytic activity; step 2: placing the solid catalyst material in a pretreatment device for surface activation treatment; step 3: performing secondary surface activation treatment; step 4: placing the solid catalyst material that has undergone surface activation treatment in an aerosolization device, and converting the solid catalyst material into tiny particles with a particle size of 8 to 20 μm through the aerosolization device: low-cost catalyst powder preparation is achieved by introducing an adjustable inert gas and a soluble polymer, and adopting a combination of an ultrasonic atomizer and a rotary spray dryer; thereby reducing raw material and energy consumption and reducing production costs; efficient preparation: introducing an adjustable inert gas and a circulating gas recovery device, and adopting a combination of an ultrasonic atomizer and a rotary spray dryer can improve the preparation efficiency of the catalyst powder.

This utility model relates to the technical field of spray dryers for traditional Chinese medicine extracts, specifically a spray dryer for traditional Chinese medicine extracts, including a machine body, a cover plate, a connecting mechanism, and a cleaning mechanism. The machine body has a support base at its bottom, and several support bases are provided. The cover plate is connected to the machine body via the connecting mechanism. The connecting mechanism includes a fixing block, an annular groove, an electromagnet, and bolts. The annular groove is formed on the side wall of the cover plate. One end of the fixing block is connected to the machine body via the bolts, and the other end of the fixing block extends into the annular groove, with the portion of the fixing block extending into the annular groove matching the groove. One end of the electromagnet is connected to the top of the machine body, and the other end of the electromagnet is attracted to the side wall of the cover plate. Several connecting mechanisms are provided. The cleaning mechanism includes a through groove, a vertical block, a sliding component, a sealing block, and a scraper. This utility model of a spray dryer for traditional Chinese medicine extracts solves the problem of inconvenient cleaning of current equipment.