84results about "Granule coating" patented technology

The present invention relates to a method of coating a granular material comprising the steps of (a) providing a granular substance; (b) providing a compound (C) which has at least one ester bond and which is obtainable by reacting a hydroxyl group or epoxy group of a compound (A) with a carboxyl group or anhydride group of a compound (B); (c) providing a compound (D) having at least one epoxy group; (d) reacting compound (C) with the epoxy group of compound (D) to produce compound (E) having an ester bond; wherein the reaction of compound (C) with compound (D) takes place in the presence of the granular material and optionally a curing agent to provide a coated granular material; and wherein the compound (A) has at least one hydroxyl group or epoxy group and is selected from fatty acid ester and fatty acid; and the compound (B) is selected from: compound (B-1) having at least two carboxyl groups; and compound (B-2) having at least one cyclic anhydride group. Furthermore, the invention relates to a coated granular material obtainable by the process according to the invention and to a kit comprising compound (C) and compound (D) and optionally a curing agent.

A reactor for coating particles includes a stationary vacuum chamber to hold a bed of particles to be coated, a chemical delivery system, and a paddle assembly. The paddle assembly includes a rotatable drive shaft and a first plurality of paddles and a second plurality of paddles that extend radially from the drive shaft. The spacing, cross-sections, and oblique angles of the paddles are such that orbiting of the paddles causes the first plurality of paddles and the second plurality of paddles to displace substantially equal volumes in opposite directions in the lower portion of the stationary vacuum chamber.

To provide a flow path structure capable of promoting mixing of two fluids, a flow path structure unit, and a production method of a lipid particle.SOLUTION: A flow path structure of an embodiment includes a first flow path, a second flow path, and a third flow path. The second flow path is connected to the first flow path, and the third flow path is connected to the first flow path and the second flow path. When a distance between a top surface and a bottom surface of the flow path is defined as a flow path depth, the flow path depth of the second flow path in an opening through which the first flow path is connected with the second flow path is not constant, and the maximum value of the flow path depth of the second flow path in the opening is smaller than the flow path depth of the first flow path.SELECTED DRAWING: Figure 1

The invention provides glassy shell expanded perlite as well as a preparation method and application thereof, and the preparation method comprises the following steps: pretreating perlite ore to obtain first perlite particles; proportioning the first perlite particles and a binder according to a mass ratio, and uniformly mixing the first perlite particles and the binder to obtain second perlite particles; proportioning the second perlite particles and the vitreous cladding powder according to a mass ratio, uniformly mixing and granulating to obtain third perlite particles; drying and preheating the third perlite particles to obtain fourth perlite particles; and carrying out high-temperature expansion treatment on the fourth perlite particles to obtain the vitreous shell expanded perlite. The expanded perlite prepared by the invention has the characteristics of high expansion time, small bulk density, high cylinder compressive strength, low heat conduction coefficient, small water absorption rate, acid and alkali corrosion resistance and the like; the material can be widely used for producing light materials, heat preservation and insulation materials, sound absorption and insulation materials, decorative materials and fireproof flame-retardant materials, and can be used as water surface floating heat preservation materials, sunscreen materials, reflective materials and the like.

The invention discloses a pellet coating system based on double PID adjustment, and relates to the field of slurry preparation, the pellet coating system comprises a stirring kettle which is communicated with a water inlet pipeline and a limestone feeding pipeline, and stirring blades in transmission connection with a stirring motor are arranged in the stirring kettle; the water inlet pipeline is provided with an electric control valve, the limestone feeding pipeline is provided with a mass flow meter, and a concentration sensor is arranged in the stirring kettle; the main control unit comprises a main PID controller and an auxiliary PID controller, the concentration sensor is connected with the input end of the main PID controller, the output end of the main PID controller is connected with the electric adjusting valve, the power signal output end of the stirring motor is connected with the input end of the auxiliary PID controller, and the output end of the auxiliary PID controller is connected with a parameter setting interface of the main PID controller. The invention further discloses a control method of the system, the proportionality coefficient or integral time parameter of the main PID is dynamically adjusted, and concentration adjustment lag caused by limestone feeding fluctuation or slurry characteristic change is remarkably reduced.

A spray system (10) for applying an amount of a liquid to a material that is a function of the unit weight of the material as the material is moving via a conveyor system (12), the spray system (10) includes a spray nozzle (24) oriented to discharge liquid on the material (14) being conveyed. A weight measurement system (28) includes a first sensor (30) and a second sensor (50). A programmable logic controller (PLC) configured to determine a total volume of material conveyed per a unit of time and determine a weight of the material being conveyed per the unit of time using a bulk density of the material being conveyed. A spray configured to vary a cycle of actuation of the spray nozzle (24) between the closed and open positions to discharge a desired amount of the liquid based on the weight per unit time of the material being conveyed.

The invention relates to a method for producing solid fertilizer particles and a fertilizer composition. The present invention provides a method for producing solid fertilizer particles, comprising the steps of spraying coated seed particles with a sprayable suspension comprising micronized elemental sulfur particles dispersed in a solution of a predominant macronutrient fertilizer to form a coating layer on the seed particles, and drying the coating layer to form a dry shell of the primary macronutrient fertilizer having the micronized sulfur particles dispersed therein. The invention also provides a fertilizer composition which comprises seed particles and a coating layer.

The embodiment of the invention relates to the technical field of binary compounds of nitrogen and metal, in particular to a preparation method of uranium nitride pellet fuel and the uranium nitride pellet fuel. The invention provides a preparation method of uranium nitride pellet fuel, which comprises the following steps: treating molybdenum-niobium metal powder to coat a zirconium coating on the molybdenum-niobium metal powder; preparing uranium oxide particles with uniform particle size; the uranium oxide particles react with ammonia gas, and uranium nitride particles are obtained; molybdenum-niobium alloy powder and uranium nitride particles are mixed, and the molybdenum-niobium alloy powder and the uranium nitride particles are evenly distributed in the obtained mixture; sintering the mixture to enable the obtained pellet to form a compact structure; and molding the pellet to obtain the uranium nitride pellet fuel. The invention further provides the uranium nitride pellet fuel. According to the method for preparing the fuel, on the premise that efficient combustion of the fuel can be guaranteed, the damage resistance of the fuel under the intense radiation condition can be improved, irradiation swelling of the fuel is reduced, the low release property of the fuel is guaranteed, and the application requirement in a space nuclear reactor is fully met.

The invention provides expanded perlite with a porcelain shell and a preparation method and application thereof, and the preparation method comprises the following steps: pretreating perlite ore to obtain first perlite particles; proportioning the first perlite particles and a binder according to a mass ratio, and uniformly mixing the first perlite particles and the binder to obtain second perlite particles; sequentially adding vitreous cladding powder and porcelain cladding powder into the second perlite particles for granulation to sequentially obtain A-type third perlite particles and B-type third perlite particles; carrying out drying and preheating treatment on the B-type third perlite particles to obtain fourth perlite particles; and carrying out high-temperature expansion treatment on the fourth perlite particles to obtain the expanded perlite with the porcelain shell. The ceramic shell expanded perlite prepared by the invention has a shell / core composite structure, the shell is a ceramic layer formed by sintering a ceramic cladding component, the core is an expanded product of the first perlite particles, and the ceramic shell expanded perlite has the characteristics of high expansion time, small bulk density, high cylinder compressive strength, low heat conduction coefficient, small water absorption rate, acid and alkali corrosion resistance and the like.

The phase change heat storage particle preparation device comprises a coating tower, a heating furnace, a liquid heat exchange assembly and a gas heat exchange assembly, wherein the liquid heat exchange assembly and the gas heat exchange assembly are connected with the coating tower and the heating furnace. The coating tower is used for coating an organic material on the surface of the phase change core to form an organic coating layer; the interior of the heating furnace is divided into a preheating area and a melting area in the particle conveying direction, and the heating furnace is used for heating particle green bodies coated with ceramic shell layers in a partitioned mode. The liquid heat exchange assembly conveys the molten organic material in the heating furnace to the coating tower for cyclic utilization; and the gas heat exchange assembly feeds low-temperature gas discharged by the heating furnace into the bottom of the coating tower for cooling a coating layer, and introduces high-temperature gas discharged by the coating tower into the top of the heating furnace for supplementary heating. The method solves the problem of ceramic shell cracking caused by thermal stress concentration in the traditional process, obviously improves the product yield, realizes cyclic utilization of organic materials and heat energy, reduces energy consumption and production cost, and is suitable for industrial continuous production.

The present invention relates to a dispersion plate and a coating device comprising the same, which provides a dispersion plate comprising a plurality of gas injection holes, wherein the dispersion plate includes a plurality of spout nozzles formed by a dense arrangement of the gas injection holes, wherein one spout nozzle is disposed at the center of the dispersion plate and the plurality of spout nozzles are arranged along a plurality of virtual concentric circles from the center of the dispersion plate to the edge of the dispersion plate, where with respect to two adjacent virtual concentric circles, the number of spout nozzles arranged along an outer concentric circle based on the center of the dispersion plate is twice the number of spout nozzles arranged along an inner concentric circle and the arrangement interval of the spout nozzles arranged along the outer concentric circle is half the arrangement interval of the spout nozzles arranged along the inner concentric circle.

A plasma coating method for coating particulate matter, including the steps of: a) providing a low-temperature atmospheric plasma jet from a plasma gas outside of the reaction chamber; b) inserting a precursor into the plasma jet, thereby obtaining a plasma coating flow comprising an excited precursor, followed by injecting the plasma coating flow comprising the excited precursor in the reaction chamber, and c) subjecting particulate matter to said plasma coating flow comprising said excited precursor, thereby obtaining particulate matter comprising an at least partial coating. a coating reactor apparatus and a system involve the plasma coating method.

The embodiment of the application relates to the technical field of binary compounds of nitrogen and metal, and particularly relates to a preparation method of uranium nitride particle fuel and the uranium nitride particle fuel. The application provides a preparation method of uranium nitride particle fuel, which comprises the following steps: treating molybdenum-niobium metal powder, so that the molybdenum-niobium alloy powder is coated with a zirconium coating; preparing uranium oxide particles with uniform particle size; reacting the uranium oxide particles with ammonia to obtain uranium nitride particles; mixing the molybdenum-niobium alloy powder and the uranium nitride particles, so that the two are uniformly distributed in the obtained mixture; sintering the mixture, so that the obtained compact is formed into a dense structure; and forming the compact to obtain the uranium nitride particle fuel. The application also provides a uranium nitride particle fuel. The fuel prepared by the method of the application can improve the damage resistance of the fuel under strong radiation conditions, reduce the irradiation swelling of the fuel, ensure the low release of the fuel, and fully meet the application requirements in space nuclear reactors.

The present invention is directed to particles comprising a composition (A) comprising a thermoplastic polyurethane (PU-A), and a composition (C-B) comprising a thermoplastic polyurethane (PU-B), wherein the composition (A) is at least partly covered with the composition (B), a process for preparing said particles as well as a process for producing an article using said particles.

The present invention provides a coating apparatus and method that can appropriately prevent the degradation of active pharmaceutical ingredients (APIs) and is suitable for mass production. [Solution] The reactor for coating particles includes a fixed vacuum chamber for holding a bed of particles to be coated, a vacuum port in the upper part of the chamber, a chemical delivery system configured to inject a reaction gas or precursor gas to the lower part of the chamber, a paddle assembly, and a motor for rotating the drive shaft of the paddle assembly. The lower part of the chamber forms a semicylinder. The paddle assembly includes a rotatable drive shaft extending through the chamber along the axial axis of the semicylinder, and a plurality of paddles extending radially from the drive shaft such that rotation of the drive shaft by the motor causes the paddles to orbit the paddles around the drive shaft.

An embodiment of the present invention provides an organic fertilizer manufacturing system, comprising: a fixed quantity ejector which feeds raw materials into a plurality of hoppers storing different raw materials; a crusher which crushes the raw materials fed from the hoppers; a mixer which mixes the raw materials crushed by the crusher; a steamer which provides moisture to the raw materials mixed by the mixer; a molder which molds the raw materials fed from the steamer into solid raw materials; a coater which coats microorganisms on the solid raw materials molded by the molder; a dryer which dries the solid raw materials fed from the coater to manufacture a fertilizer; and a packager which packages the fertilizer dried by the drier.

The present invention relates to a tool for drying, mixing, and coating a mixed powder. [Solution] The present invention relates to a tool (1) for drying, mixing, and coating a powder mixture, comprising a fixed shaft (2) and a disc-shaped element (4) fixed thereto, having a diameter d, an upper surface, a lower surface, and an outer peripheral surface connecting the upper and lower surfaces, wherein the disc-shaped element has a number of grooves extending parallel to the shaft axis, each groove having two groove walls extending from the outer peripheral surface to the groove bottom, and teeth formed between the two groove walls. In particular, in order to provide a tool suitable for drying, mixing, drying, and coating a powder mixture with minimal contamination, the present invention proposes that the disc-shaped element has a base portion and at least one wear element (6) fixed to the base portion, and that at least one portion of each groove wall adjacent to the outer peripheral surface is formed by the wear element.

A method of preparing an abuse deterrent pharmaceutical composition having a drug-containing core enclosed by one or more metal oxide materials is provided. The method includes the sequential steps of (a) loading the particles comprising the drug into a reactor, (b) applying a vaporous or gaseous metal precursor to the particles in the reactor, (c) performing one or more pump-purge cycles of the reactor using inert gas, (d) applying a vaporous or gaseous oxidant to the particles in the reactor, and (e) performing one or more pump-purge cycles of the reactor using inert gas. This produces an abuse deterrent pharmaceutical composition comprising a drug containing core enclosed by one or more metal oxide materials.

The present invention relates to a composite material comprising a polymer matrix and microparticles embedded in the polymer matrix, wherein the polymer matrix is ​​at least partially gas-permeable and not intrinsically electrically conductive, wherein the microparticles each comprise a nanoparticle structure, and wherein the microparticles are completely covered by the polymer matrix. The present invention also relates to a method for producing the composite material and to the use of the composite material.

To provide a device and a method for coating powder and a device and a method for dispersing powder capable of improving the dispersibility of powder and the efficiency of coating treatment.SOLUTION: A coating device 1 comprises a dispersing / mixing part 2, a conveying part 3, and a collecting part 4. A raw material powder and a coating liquid are supplied to the dispersing / mixing part 2 in the form of a slurry. In the dispersing / mixing part 2, the slurry (mixture) in which the raw material powder and the coating liquid have been mixed is dispersed by an air flow of a high pressure fluid into a powder having a film of the coating liquid adhering to its surface. The powder is introduced from the dispersing / mixing part 2 to the conveying part 3 and is conveyed through the conveying part 3 toward the collecting part 4. During this conveyance, the coating liquid adhering to the particle surfaces dries, producing a powder in which the particle surfaces are coated with a precursor. A powder flow introduced into the collecting part 4 passes through a bag filter 54. This causes the powder to be captured by the bag filter 54.SELECTED DRAWING: Figure 1

A fertilizer composition includes a seed particle spray coated with a fertilizer material including a soluble fertilizer and micronized sulphur particles. A method of producing a fertilizer composition includes the steps of producing a seed particle; preparing a sprayable suspension comprising a solution of a fertilizer material in water, a suspended insoluble fertilizer material, and a dispersant; and using the suspension to spray coat a layer of a mixture of the soluble and insoluble fertilizer material onto the seed particle.

This coating device 1 comprises a dispersing / mixing part 2, a conveying part 3, and a collecting part 4. A raw material powder and a coating solution are supplied to the dispersing / mixing part 4 as a slurry. In the dispersing / mixing part 2, the slurry (mixture) in which the raw powder and the coating solution have been mixed is dispersed by means of an air flow of a high-pressure fluid into a powder, a film of the coating solution having adhered to the surface of the powder. The powder is introduced from the dispersing / mixing part 2 to the conveying part 3t and is conveyed with the conveying part 3 oriented toward the collecting part 4. While the powder is being conveyed, the coating solution that has adhered to the particle surfaces dries, whereby a powder in which the particle surfaces areas coated with a precursor is produced. A powder flow introduced into the collecting part 4 passes through a bag filter 54. This causes the powder to be captured by the bag filter 54.

The invention belongs to the technical field of composite powder preparation, and discloses a powder coating device. The powder coating device comprises a shell and a stirring assembly, and the shell is provided with a reaction cavity used for containing at least two kinds of powder; the stirring assembly comprises a powdering piece, a static blocking piece and a driving piece, the static blocking piece is fixed to the shell and provided with a flow guide face arranged in the reaction cavity, the powdering piece is arranged in the reaction cavity and provided with a flow guide protrusion, the driving piece is partially arranged in the reaction cavity and connected with the powdering piece, and the driving piece is used for driving the powdering piece to rotate; when the driving piece drives the powder beating piece to rotate in the reaction cavity, the flow guide protrusions arranged on the powder beating piece enable powder to rotate and be mixed according to a vortex-shaped track, the powder can collide with the flow guide face when rotating in the reaction cavity, and under the combined action of the powder beating piece and the static blocking piece, the powder coating uniformity and efficiency are effectively improved, and the coating effect is guaranteed.

A method of producing a particle coating on one or more items is provided. The method comprises mixing a supercritical fluid with a solution comprising dissolved material for forming particles. The method further comprises spraying the mixture into a precipitation chamber (316) to precipitate particles, wherein the chamber is at a pressure below a supercritical pressure of the supercritical fluid. The method comprises conveying items to be coated from an inlet of the chamber to an outlet of the chamber. The method also comprises capturing the precipitated particles on items within the chamber.

This coating device comprises dispersing / mixing part, conveying part, and collecting part. A raw material powder and a coating solution are supplied to the dispersing / mixing part as a slurry. In the dispersing / mixing part, the slurry (mixture) of the raw powder and the coating solution is dispersed by air flow of a high-pressure fluid into a powder, a film of the coating solution having adhered to the surface of the powder. The powder is introduced from the dispersing / mixing part to the conveying part and is conveyed with the conveying part oriented toward the collecting part. While the powder is being conveyed, the coating solution that has adhered to the particle surfaces dries, whereby a powder in which the particle surfaces are coated with a precursor is produced. A powder flow introduced into the collecting part passes through a bag filter, causing the powder to be captured by the bag filter.

This invention discloses a pellet coating system based on dual PID control, relating to the field of slurry preparation. The system includes a stirred tank connected to a water inlet pipe and a limestone feed pipe, with internal stirring blades connected to a stirring motor. The water inlet pipe is equipped with an electric regulating valve, the limestone feed pipe with a mass flow meter, and a concentration sensor inside the stirred tank. The main control unit includes a main PID controller and a secondary PID controller. The concentration sensor is connected to the input of the main PID controller, the output of the main PID controller is connected to the electric regulating valve, the power signal output of the stirring motor is connected to the input of the secondary PID controller, and the output of the secondary PID controller is connected to the parameter setting interface of the main PID controller. This system is used for pellet slurry mixing control. This invention also discloses a control method for this system, dynamically adjusting the proportional coefficient or integral time parameter of the main PID controller to significantly reduce concentration regulation lag caused by limestone feed fluctuations or changes in slurry characteristics.

Provided is a method of producing a catalyst-bearing support that produces a catalyst-bearing support used in production of a fibrous carbon nanostructure. The production method includes: a stirring step of rotating an approximately circular tube-shaped rotary drum around a central axis so as to stir a particulate support; a spraying step of spraying a catalyst solution against the particulate support inside of the rotary drum; and a drying step causing a drying gas to flow to inside of the rotary drum from outside of the rotary drum so as to dry catalyst solution attached to the particulate support. In this production method, at least part of an implementation period of the stirring step and at least part of an implementation period of the spraying step overlap with each other.

The invention belongs to the technical field of pet deodorization, and discloses a sterilization deodorant for pets and a preparation method. The pet sterilization deodorant is in a particle shape of a core-shell structure, a shell layer is a porous antibacterial film, and an inner core is a particle material loaded with natural antibacterial components; the porous antibacterial film is prepared from the following raw materials: chitosan, a silane modifier, polyethylene glycol, ammonium bicarbonate, nano zinc oxide and tea polyphenol. According to the sterilization deodorant for the pets and the preparation method of the sterilization deodorant, the core-shell structure design is combined with the porous antibacterial film and the natural antibacterial core, the synergistic effect of physical adsorption and chemical bacteriostasis is achieved, and the sterilization deodorant has the advantages of efficient sterilization, lasting deodorization, safety, environment friendliness and multiple functions; the preparation cost is low, the preparation process is simple, and good popularization and application values are achieved.

An apparatus for coating or encapsulating articles, having a drum with a perforated wall rotatably assembled in a wrap-around chamber and suitable for containing and stirring a batch of articles to be coated; a dispenser group with one or more nozzles for spraying a coating product; a gas inlet to direct clean drying gas against the perforated wall and a gas outlet to extract from the chamber dirty drying gas. An adjustable closure system is interposed between the drum and the gas outlet of the chamber, defining a passage for the dirty drying gas smaller than the passage by the gas outlet and further displaced or concentrated coinciding with the area of the wall of the drum that is effectively covered by the batch of articles. An automated adjustment of the locking system is envisaged, taking into account the position of the nozzles within the drum.

The invention discloses a coating system. The coating system comprises a coating mechanism and a ventilation mechanism, the coating mechanism comprises a coating machine and a coating assembly detachably connected with the coating machine, and one end of the coating assembly is driven by the coating machine; the coating machine comprises a machine body, a driving part arranged outside the machine body and a spray gun arranged in the machine body, the driving part drives the coating assembly to rotate in the coating machine, coating liquid is sprayed to pellets or tablets in the coating assembly through the spray gun, and the pellets or tablets are dried through the ventilation mechanism. The driving part drives the coating assembly to rotate in the coating machine, coating liquid is sprayed to pellets or tablets in the coating assembly at the same time, the ventilation mechanism is used for drying to replace a fluidized bed coating mode, the pellets or tablets are evenly distributed in the rotating coating assembly, the probability of uneven coating is reduced, the coating efficiency is improved, and the coating efficiency is improved. And the coating time is shortened, so that the energy consumption is reduced. Meanwhile, the coating assemblies which are detachably connected can be replaced with coating assemblies of different specifications, so that the universality is improved.