355results about "Granulation by liquid drop formation" patented technology

According to the mixed phase ice crystal particle ground generation and icing experiment device and method, a water spray head generates a water drop particle swarm, an ice crystal particle generation device generates an ice crystal particle swarm, the water drop particle swarm and the ice crystal particle swarm are mixed in a controllable proportion to form an ice-water mixed phase, and then a mixed phase icing experiment can be achieved. The experimental device comprises an air duct system, a water drop atomization generation system, an ice crystal particle generation system, an impact surface system and a measurement system, the air duct system comprises an axial flow fan, an air duct and an experiment cavity; the impact surface system comprises an impact surface assembly, the water drop atomization generation system and the ice crystal particle generation system are used for providing water drops and ice crystals respectively, the axial flow fan provides high-speed airflow, the water drops and the ice crystals are conveyed through the air duct to impact the impact surface assembly at a high speed, and an impact icing experiment of a mixed phase is achieved; the measuring system is used for measuring the air speed, temperature and humidity in the air duct and measuring the thickness and temperature of an ice layer of the impact surface assembly.

The utility model provides a sodium ion battery positive electrode material processing device, and belongs to the technical field of motor active material manufacturing. Comprising a dispersing tank, a cavity and a material collecting bin, the dispersing tank is connected with a material conveying pipe, a spray head is arranged at the tail end of the material conveying pipe and located in the cavity, the cavity is connected with a vacuumizing pipe, a crawler belt is arranged below the spray head, a heating plate and a cooling plate are arranged in a crawler belt loop, the heating plate is located in the crawler belt loop, and the cooling plate is arranged close to the tail end of the crawler belt. The outlet of the cavity is connected with a collecting bin. The device is used for raw material treatment of the battery positive electrode material, and has the advantages of high stability, uniform heating, stable material performance, capability of realizing an atomization granulation effect, easiness in industrialization and the like.

The utility model discloses a spray granulation system, comprising: a stirring device for stirring materials, the stirring device being provided with a first discharge pipe; the screening device is connected with the first discharging pipe, the screening device is used for screening the materials, and the screening device is provided with a second discharging pipe; the storage tank is connected with the second discharging pipe, the storage tank is used for temporarily storing materials, the storage tank is provided with a sensor, the sensor is used for detecting the condition of the materials in the storage tank, the storage tank is provided with a third discharging pipe, the third discharging pipe is provided with a first discharging pump, and the first discharging pump is connected with the sensor; and the spray granulation device is connected with the third discharge pipe, and the spray granulation device is provided with a first discharge pipe.

The invention discloses spray granulation equipment and a spray granulation method, and relates to the technical field of spray granulation. The device comprises a drying box, the drying box internally comprises a hot air cavity and a processing cavity, an air heater is installed in the hot air cavity, a filter plate is installed between the hot air cavity and the processing cavity, and a discharging opening is formed in the processing cavity; and the storage tank is provided with a discharging pipe communicating with the processing cavity, and a stirring piece is installed in the storage tank. When the device is used, air is blown into the processing cavity through the air heater, raw materials are dried through hot air, particles formed by the raw materials can be discharged through a discharging port, and the blown-out hot air moves in the processing cavity, gradually moves into a transfer pipe and enters an interlayer of a storage tank through the transfer pipe; and the storage tank is preheated through waste heat of tail gas, the utilization rate of the tail gas is increased, and then the practicability of the device is improved.

This invention provides mitomycin freeze-dried powder with excellent solubility and stability, as well as equipment for preparing the same. [Solution] In step 1, the raw materials are sieved through a 200-mesh sieve in preparation for use; in step 2, approximately 60% of the prescribed amount of sterile water for injection is weighed into a liquid mixing tank and the sterile water for injection is cooled to 1-5°C; in step 3, the prescribed amount of mannitol powder is added to the liquid mixing tank; in step 4, the prescribed amount of mitomycin is dispersed in an isolator with an appropriate amount of sterile water for injection and then added to the liquid mixing tank, the liquid mixing tank is started and stirred until completely dissolved; in step 5, the sterile water for injection is replenished to the full volume, the temperature of the drug solution is maintained at 1-5°C and stirred continuously; and in step 6, the temperature of the liquid mixing tank is maintained at -2-2°C, and it is filtered online and filled.

The invention relates to the technical field of compound fertilizer production equipment, discloses a centrifugal granulation tower for producing glycoside-containing compound fertilizer, and aims at solving the technical problems that existing granulation equipment is uneven in granularity and poor in product quality. The granulation tower comprises a tower body, a centrifugal production mechanism, a feeding pipe, a cooling fan, an air inlet shutter and a material receiving disc, the centrifugal production mechanism is a core component, is composed of a cross-shaped supporting frame, a centrifugal material mixing assembly, a centrifugal material discharging assembly, a driving assembly, a transmission assembly and a servo motor, and can achieve full mixing and precise centrifugal granulation of raw materials. The cooling fan is matched with the adjustable air inlet shutter, so that the particles are quickly and uniformly cooled; the material receiving disc is used for collecting the cooled particles; according to the invention, through cooperation of all the parts, it is ensured that glycoside-containing compound fertilizer particles are regular and uniform in component, particle caking damage is reduced, different productivity and granularity requirements are met, production efficiency and product quality are improved, and the industrial application prospect is good.

The utility model discloses an organic inorganic compound fertilizer sprays slurry granulation drying all -in -one, including work table, granulation drying structure, sprays slurry structure and feeding structure, the granulation drying structure is located on the work table, the sprays slurry structure is located on the work table, the feeding structure is located on the work table, the granulation drying structure includes rotary base, rotary bearing, rotating drum, gear no.

To provide a method for producing granulated powder in which the surface of each of the multiple magnetic particles contained in the granulated powder can be easily coated with a resin composition. [Solution] The raw materials for the granulated powder (30) are a slurry 9 containing a magnet powder consisting of multiple magnet particles 3, a resin composition 5, and an organic solvent. The magnet powder is an alloy containing Sm, Fe, and N. The resin composition 5 contains a thermosetting resin. By spraying the slurry 9, multiple fine particles 10 made of the slurry 9 are formed. When a magnetic field H is generated by the coil 4, the multiple fine particles 10 are supplied to the inside of the coil 4 by the magnetic field H. Inside the coil 4, the multiple fine particles 10 aggregate due to the magnetic field H, forming multiple aggregates 20. By heating the multiple aggregates 20, the organic solvent is removed from the multiple aggregates 20, and the multiple aggregates 20 become granulated powder (30).

The present application provides a digital PCR detection apparatus, a digital PCR quantitative detection method, a multi-volume digital PCR quantitative analysis method, a digital PCR detection method, a nucleic acid detection microsphere, a preparation method of the nucleic acid detection microsphere, a kit, and a high-throughput nucleic acid detection method.

This invention discloses a high-temperature molten slag granulation system coupled with cyclone heat exchange and water mist, including a granulation chamber, a high-temperature molten slag transition device disposed at the top of the granulation chamber, a granulation disc disposed inside the granulation chamber and below the high-temperature molten slag transition device, and a transmission shaft and motor for driving the rotation of the granulation disc. A slag outlet is provided at the bottom of the granulation chamber, and multiple spray nozzles are evenly arranged circumferentially on the upper part of the inner side wall of the granulation chamber. At least four tangential high-pressure air inlets are provided circumferentially below the spray nozzles on the side wall of the granulation chamber, each high-pressure air inlet being connected to a high-pressure blower. An arc-shaped guide baffle is provided on the inner side of each high-pressure air inlet. The system of this invention has a compact structure and no additional moving parts. It can adapt to different working conditions such as blast furnace slag and steel slag by only adjusting the air pressure and water volume, and has broad industrial application value.

The application discloses a spray drying micro-capsule granulation system and method with an internal fluidized bed, and relates to the technical field of micro-capsule spray granulation. The system comprises a granulation tower, an internal fluidized bed, a first detection unit, a state sensing unit, an external fluidized bed, a second detection unit, a numerical simulation unit and a control unit. The primary particles generated by the internal fluidized bed drying granulation tower form a semi-finished product, and the semi-finished product is dried by the external fluidized bed to obtain a finished product. The numerical model unit creates and updates a first-order numerical model of the internal fluidized bed and a second-order numerical model of the external fluidized bed. The control unit evaluates the credibility of the humidity of the semi-finished product through the first-order numerical model, adjusts the operation parameters of the external fluidized bed through the second-order numerical model, and updates the first-order numerical model based on the updated second-order numerical model after updating the second-order numerical model through the humidity of the finished product. The two-stage drying is realized in a cooperative and adaptive control mode, and the product quality stability and system robustness are effectively improved.

This invention relates to the field of cefuroxime axetil production technology, and provides a mixing device for cefuroxime axetil production, including a first mixing cylinder assembly, a second mixing cylinder assembly, and a cefuroxime axetil pretreatment mechanism. The first mixing cylinder assembly is used to prepare qualified cefuroxime axetil coated microparticles as a primary product. The second mixing cylinder assembly is used to mix and flavor the qualified cefuroxime axetil coated microparticles to form the final cefuroxime axetil dry suspension product. The cefuroxime axetil pretreatment mechanism is used to hammer, grind, and screen the cefuroxime axetil powder. The cefuroxime axetil pretreatment mechanism includes a pretreatment cylinder, which is equipped with a hammering component, a grinding component, and a screening component. By setting up a cefuroxime axetil pretreatment mechanism, this invention integrates the three functions of hammering, grinding, and screening into one unit, effectively solving the problems of cefuroxime axetil raw material agglomeration and uneven particle size, providing a raw material foundation with uniform particle size for subsequent coating processes.

The utility model relates to the technical field of compound fertilizer production, in particular to a compound fertilizer slurry filtering device and a high-tower granulation device. The compound fertilizer slurry filtering device comprises a filter and a slag discharging device, the filter comprises a first shell, a feeding pipe and a discharging pipe are connected to the first shell, the filter is used for being connected to a slurry pipeline through the feeding pipe and the discharging pipe, a filtering piece is arranged in the first shell, and the slag discharging device is arranged in the filtering piece. The filtering piece is located between the feeding pipe and the discharging pipe so as to filter out filter residues in slurry; the residue discharging device comprises a second shell, a spiral blade and a driving assembly, one end of the spiral blade is located in the second shell, the other end of the spiral blade is located in the first shell, the driving assembly is used for driving the spiral blade to rotate so as to convey filter residues on the filtering part to the second shell, and the second shell is provided with a residue discharging opening used for discharging the filter residues. Impurities in the slurry can be filtered out by the filter, and the filtered impurities can be continuously discharged by the deslagging device; impurities in the filtered compound fertilizer slurry are reduced, and the spray head is not easy to block.

The application relates to the field of microspheres, and particularly relates to a graphene microsphere and a preparation method thereof, and the preparation method comprises a droplet preparation step of graphene microsphere slurry, wherein the droplet of the graphene microsphere slurry is dropped through a dropper, the bottom of the dropper is provided with a droplet size adjusting module, the droplet size adjusting module comprises multiple layers of adjusting units, each layer of adjusting unit is provided with a forming droplet hole, the forming droplet holes on the multiple layers of adjusting units are vertically opposite, the forming droplet holes on each layer of adjusting unit gradually decrease in diameter from top to bottom, and the inner walls of the multiple forming droplet holes form a ladder shape; each layer of adjusting unit comprises two adjusting plates which can slide horizontally, the end portions of the two adjusting plates are opposite, the opposite end portions of the two adjusting plates are provided with arc-shaped grooves, and the arc-shaped grooves are combined into the forming droplet hole when the two adjusting plates abut against each other; and the size of the droplet is adjusted by controlling the opening and closing states of each layer of adjusting unit. The scheme is convenient for adjusting the size of the prepared microspheres and is simple and convenient to operate.

This invention discloses a spray drying system for drying a liquid into a powder, comprising: an elongated body; and closed arrangements at opposite upper and lower ends of the elongated body for forming a drying chamber within the elongated body. One of the closed arrangements includes a drying gas inlet for guiding drying gas into the drying chamber. A nozzle assembly is supported in one of the closed arrangements. The lower closed arrangement includes a powder collection container for collecting the dried powder in the drying chamber. The powder collection container is configured such that a covering gas can be guided into the interior of the powder collection container to cover the powder in the powder collection chamber, thereby protecting the powder from exposure to the drying gas from the drying chamber.

A plurality of compound particles for use in a shaping and sintering process, comprising pulverulent non-organic particles in a temporary organic binder, is characterized in that: (i) at least 80% of the pulverulent non-organic particles have a maximum dimension Amax in the range of from 10 nm to 500 μm, (ii) the amount of the temporary organic binder ranges from about 1 to 99 vol.-%, based on the total volume of the compound particles, (iii) at least 80% of the compound particles have a maximum dimension Bmax in the range of from 10 μm to 1000 μm, (iv) the compound particles have an apparent density of at least 70% of the true density, and (v) the compound particles have continuous external surfaces formed from pulverulent non-organic particles exposed at the external surfaces and temporary organic binder in the interstices between the pulverulent non-organic particles, the temporary organic binder presenting non-fractured surfaces. A process for preparing compound particles for use in a shaping and sintering process, comprises 1) providing a liquefied dispersion of pulverulent non-organic particles dispersed in a liquefied temporary organic binder, wherein at least 80% of the pulverulent non-organic particles have a maximum dimension Amax in the range of from 10 nm to 500 μm, 2) atomizing the liquefied dispersion to obtain atomized droplets, at least 80% of the atomized droplets having a maximum dimension B′max in the range of from 10 μm to 1000 μm, and 3) allowing the atomized droplets to solidify to obtain the compound particles.

The precision extrusion forming device comprises a pressure PID controller, a pressure protector, an extrusion pipe valve, a slurry cavity, a spray head, a spray disc and a collecting disc, the pressure PID controller and the pressure protector are in electric control connection with the extrusion pipe valve, the extrusion pipe valve is connected with the upper end of the slurry cavity, the spray head is connected with the upper end of the slurry cavity, and the collecting disc is connected with the lower end of the slurry cavity. The spray head is connected with the lower end of the slurry cavity, the spray disc is annular, an air nozzle is arranged on the inner wall of the spray disc, the spray disc is located below an outlet of the spray head, and the liquid slurry is ejected out of the spray head under the driving of the extrusion force and forms monodisperse liquid drops under the action of airflow of the spray disc. The collecting disc is arranged below the spraying disc, a cooling medium is contained in the collecting disc and used for cooling and solidifying falling monodisperse liquid drops, and the protective gas is communicated with the slurry cavity. By adopting the forming device disclosed by the invention, the tritium breeding microspheres with uniform particle size, excellent performance and less lithium loss can be obtained.

The invention discloses a device for continuously preparing biological macromolecular micro-nano particles by liquid nitrogen. The device comprises a supporting platform, a freezing flat plate positioned on the supporting platform, a movable spraying frame, a movable scraping plate and a control panel, a liquid nitrogen containing cavity is formed in the freezing flat plate, and the containing cavity is filled with liquid nitrogen; a spraying device is arranged on the movable spraying frame and is used for spraying materials on the surface of the freezing flat plate; the movable spraying frame and the movable scraping plate are arranged at the two opposite ends of the freezing flat plate respectively and electrically connected with the control panel, and the control panel can control the movable spraying frame and the movable scraping plate to move oppositely or reversely in the extending direction of the freezing flat plate; the method has the advantages that continuous production can be achieved, the biological activity of the medicine is reserved, and energy consumption is reduced.

The present invention provides for a process for synthesis of carbon beads comprising sub-micron size, micron size or milli size. The process enables modulation of the viscous slurry for synthesis of the carbon beads with improved physico-chemical properties. The process enhances ability of the carbon beads to withstand extreme pH and high temperatures. The present invention also provides a composition for synthesis of the carbon beads. The present invention also provides a microfluidic droplet generator for synthesizing the carbon beads. The carbon beads synthesized by the present invention are applicable in separation, filtration, purification, wires and cables, electrodes, sensor, composite and additive manufacturing, pharmaceutical delivery applications.

The invention relates to a process for preparing a powder comprising one or more oxides selected from uranium oxide UO2, plutonium oxide PuO2 and minor actinide oxides, the minor actinides being selected from americium, neptunium and curium, comprising the steps of: a) cryogenic granulation of an aqueous solution comprising cations selected from uranium-based cations, plutonium-based cations and minor actinide-based cations; b) freeze-drying of the granules obtained in a); etc.; calcination of the granules from b). Applications: manufacture of nuclear fuels or blankets loaded with minor actinide(s).

One embodiment of the present disclosure provides a method for processing an aqueous solution / a method for forming microdroplets, the method including: providing a substrate / device / flow channel having a surface including a hydrophobic surface (region) and a region (nanowire region) surrounded by the hydrophobic surface, wherein the nanowire region includes hydrophilic nanowires; introducing an aqueous solution onto the surface of the substrate; and isolating the aqueous solution into the nanowire region.

The invention discloses a spray powdering device integrating drying, smashing and grading functions, and belongs to the technical field of spray powdering, the spray powdering device comprises a material preparation system, a spray discharging system, a processing system and a heating system.The material preparation system feeds slurry to be sprayed into the processing system, and the processing system carries out grading and smashing treatment on the slurry; the heating system heats compressed air and sends the compressed air into the processing system to dry materials, the processing system sends the dried materials into the spray discharging system, and the materials are sprayed out through the spray discharging system. The energy consumption is greatly reduced, the heat efficiency is improved, the problem that materials adhere to the wall is solved, the product yield and quality are improved, precise and closed-loop control over the product granularity is achieved, the structure is compact, the investment and maintenance cost is reduced, the equipment durability is enhanced, and the working environment is improved.

The utility model discloses a spray granulator for piezoresistor production, which comprises a machine body, the machine body comprises a spray granulation chamber, a granulation grading chamber and a drying chamber, and the spray granulation chamber is connected with a first hot air circulating system and a spray mechanism. The first hot air circulating system comprises a first air inlet, a first heating device and a first circulating fan which are sequentially arranged in the air inlet direction of the spray granulation chamber, and further comprises a first exhaust device and a first heat exchanger which are sequentially arranged in the air outlet direction of the spray granulation chamber. The first heat exchanger is connected with the first air inlet, granulation materials are subjected to grading treatment through the grading mechanism, and the production requirement of the high-performance piezoresistor can be met; the design of two hot air circulating systems and heat exchangers is adopted, so that heat energy is recycled, and energy consumption is reduced.

To provide a reactive metal powder atomization manufacturing process.SOLUTION: For example, such a process includes the step of providing a heated metal source and, during execution of the atomization process, the heated metal source is contacted with at least one additive gas. Such a process provides a raw reactive metal powder having improved flowability. The at least one additive gas can be mixed together with an atomization gas to obtain an atomization mixture, and the heated metal source can be contacted with the atomization mixture during the atomization process. A reactive metal powder spheroidizing manufacturing process is also provided.SELECTED DRAWING: Figure 1

The invention provides a continuous forming and gradient flooding method and device for a spherical energetic material. The method comprises the following steps: forming liquid medicine into uniform micro-drops through a micro-channel device, and sequentially feeding the uniform micro-drops into three stirring kettles which are connected in series: curing and forming in a first stirring kettle at 5-25 DEG C, overflowing into a second stirring kettle, carrying out low-temperature flooding at 40-60 DEG C so as to remove more than 80% of solvent, overflowing into a third stirring kettle, and completing high-temperature deep flooding at 70-90 DEG C, and finally cooling to room temperature through a cooling device. And the three stirring kettles realize continuous transfer through an overflow structure, and manual intervention is not needed. The device comprises a metering pump, a micro-channel device, three stirring kettles connected in series and a cooling device. Through the gradient strategy of low-temperature pre-desolvation and high-temperature deep desolvation, the contradiction between particle softening deformation and solvent residue in the traditional process is solved, the particle size distribution deviation of the spherical energetic material is smaller than or equal to 5%, the deformation rate is smaller than or equal to 2%, the solvent residue is smaller than or equal to 50 ppm, the production continuity is improved by 40% or above, and the method is particularly suitable for continuous production of temperature-sensitive energetic drugs.

This solvent-removing apparatus comprises: a tank body accommodating an emulsion comprising first source material in a continuous phase and second source material in a dispersed phase; a fluid supply unit for supplying fluid into the tank body to cause the emulsion to circulate; and a discharge unit for discharging the gas in the tank body to the outside.

To provide a method for producing aromatic polysulfone particles that has high filterability and can prevent scaling of the resin particle deposition tank wall. [Solution] A method for producing aromatic polysulfone particles using an aromatic polysulfone solution containing an aromatic polysulfone and a non-protic solvent, comprising step (A) of discharging the aromatic polysulfone solution from a nozzle 10 into a solvent 50 containing a protic solvent, wherein in step (A), the discharge port 12 of the nozzle 10 is immersed in the solvent 50 containing a protic solvent.

Described herein are solid sorbents including amines that are covalently bonded to a porous support. The solid sorbents exhibit high adsorption capacities for carbon dioxide. The solid sorbents exhibit desirable hydrothermal and cycling stability.

Provided is a spray dryer with which a fluid that has been subjected to a fluid processing in a spray device can be directly sprayed from the spray device into a drying chamber so that the fluid can be dried, without the need for a dispersion machine for adjusting the dispersion state of a dispersion solution to be sprayed into the drying chamber. The spray dryer comprises a spray device F. The spray device F comprises processing surfaces 1, 2 disposed opposing each other, and a rotation mechanism M that rotates at least one of the processing surfaces 1, 2 relative to the other. The processing surfaces 1, 2 define a circular flow path 3 through which is passed a fluid to be processed containing a first fluid and a second fluid. The circular flow path 3 comprises introduction ports d1, d2. The introduction port d1 introduces, at an opening which connects to the circular flow path 3, the first fluid from the inside of the circular flow path 3. The introduction port d2 opens in the middle of the circular flow path 3, and combines the second fluid with the first fluid which has been constrained into a thin-film fluid by the processing surfaces 1, 2. The fluid to be processed is subjected to fluid processing between the processing surfaces 1, 2, and the fluid-treated fluid is sprayed to the outside from between the processing surfaces 1, 2.

The invention relates to a method and a facility for continuously manufacturing granular aerogel and a supercritical CO2 drying method. The present invention provides a process for the continuous production of a particulate aerogel from a precursor, comprising the steps of:-mixing the precursor with a synthesis solvent and a hydrolysis reagent and, if appropriate, a catalyst to obtain a gel,-granulating the resulting product to produce particulates,-maintaining the particulates in contact with the synthesis solvent and the hydrolysis reagent, -washing the granulate by adding a washing solvent in order to extract, in particular, the hydrolytic agent, if appropriate, the catalyst,-drying the granulate by sending an excess of supercritical CO2 to the granulate in order to extract the synthesis solvent and / or the washing solvent, said steps of granulating, holding, washing and drying being carried out at a pressure higher than the critical point of CO2, and maintaining these conditions between these steps. The invention also provides a facility specially designed to implement the method of the invention, as well as a supercritical CO2 drying method.