34results about "Granule coating" patented technology

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 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 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 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.

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.

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 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.

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.

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.

A method for preparing an abuse-deterrent pharmaceutical composition having a drug-containing core encapsulated in one or more metal oxide materials is provided. The method includes the sequential steps of: (a) loading drug-containing particles into a reactor, (b) applying a vapor or gaseous metal precursor to the particles in the reactor, (c) pumping and purging the reactor one or more times using an inert gas, (d) applying a vapor or gaseous oxidizing agent to the particles in the reactor, and (e) pumping and purging the reactor one or more times using an inert gas. This produces an abuse-deterrent pharmaceutical composition comprising a drug-containing core encapsulated in one or more metal oxide materials.

The invention is suitable for the technical field of soil conditioner preparation, and provides an agricultural waste recycling coastal saline-alkali soil conditioner preparation device which comprises two sets of mixing machines, two sets of pelletizers and a drying box, each mixing machine comprises a mixing tank, a feeding pipe and a discharging pipe are arranged on each mixing tank, and the drying box is provided with a drying box. A mixing module is further arranged in the mixing tank and comprises a rotating pipe and a mixing assembly located on the rotating pipe, an auxiliary stirring assembly used for adjusting the working state of the mixing assembly is further arranged on the rotating pipe, and a driving module used for driving the rotating pipe to rotate is arranged at the top of the mixing tank; by means of the agricultural waste recycling device, efficient resource utilization of agricultural waste is achieved, and economic benefits of ecological environmental protection and agricultural production are both considered.

The present invention relates to an apparatus for coating or encapsulating articles, comprising 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 during the rotation of the drum; a dispenser group with one or more nozzles for spraying a coating product on the articles contained in the drum; at least one gas inlet to the chamber on a first side of the drum to direct clean drying gas against the perforated wall of the drum and at least one gas outlet from the chamber on the other side of the drum to extract from the chamber dirty drying gas that has passed through the drum. The apparatus comprises an adjustable closure system interposed between the drum and the gas outlet of the chamber, capable of defining an effective passage for the dirty drying gas smaller than the passage offered by the gas outlet of the chamber 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 which operates, in one case, taking into account the position of the nozzles within the drum.

The present invention is directed to particles comprising composition (A) comprising a thermoplastic polyurethane (PU-A) and composition (CB) comprising a thermoplastic polyurethane (PU-B), wherein composition (A) is at least partially coated with composition (B), a method for preparing said particles, and a method for manufacturing an article using said particles.

The invention belongs to the technical field of graphite negative electrode material modification equipment, and particularly relates to a graphite negative electrode material low-temperature coating modification reaction device which comprises a material storing and screening mechanism used for storing and screening a negative electrode material; the pretreatment mechanism is communicated with the bottom of the stored material screening mechanism and is used for crushing and preheating the graphite negative electrode material; the heating mechanism is communicated with the bottom of the pretreatment mechanism and is used for heating the graphite negative electrode material at high temperature; the coating reaction mechanism is communicated with the heating mechanism and is used for carrying out reaction coating on the graphite negative electrode material; and the cooling mechanism is communicated with the coating reaction mechanism. According to the invention, through the cooperative operation of the whole process of material storage and screening, crushing and preheating, high-temperature heating, coating reaction, cooling and shaping and online detection, the integrated low-temperature coating modification of the graphite negative electrode material is realized, all mechanisms and all parts are clear in division of labor and tight in linkage, and a complete production closed loop is formed.

Microstructured composite particles obtainable by a process in which large particles are combined with small particles, wherein: - the large particles have a mean particle diameter in the range of 0.1 µm to 10 mm, - the mean particle diameter of the small particles is at most 1 / 10 of the mean particle diameter of the large particles, - the large particles comprise at least one polymer, - the small particles comprise at least one calcium salt, - the small particles are arranged on the surface of the large particles and / or inhomogeneously distributed within the large particles, characterized in that the large particles comprise at least one resorbable polyester with a number-average molecular weight in the range of 500 g / mol to 1,000,000 g / mol.The composite particles are preferably used as an additive, in particular as a polymer additive, as an additive material or starting material for the manufacture of components, for applications in medical technology and / or in microtechnology and / or for the manufacture of foamed objects.

The invention discloses a multi-nozzle cooperative intelligent fluidized bed granulation coating system and method, and relates to the technical field of pharmaceutical machinery, the system comprises a nozzle unit, and a plurality of micro nozzles arranged in an annular array mode; the air pressure feedback adjusting system is used for dynamically adjusting the atomizing pressure and the spraying angle of each nozzle; the temperature monitoring and control unit comprises an infrared thermal imaging sensor and an artificial intelligence algorithm module and is used for monitoring the surface temperature of particles in the fluidized bed in real time and automatically adjusting the hot air flow and temperature; the aperture gradient of the detachable porous distribution plate is simulated and optimized through computational fluid dynamics; and the control system is used for coordinating the work of each unit. According to the invention, the annular array micro nozzles are adopted to replace a traditional single nozzle, so that uniform coverage of the coating liquid on the particle surface is realized; an infrared thermal imaging sensor and an artificial intelligence algorithm are integrated, real-time and high-precision monitoring and automatic feedback adjustment of the surface temperature of particles in the fluidized bed are achieved, and the quality and stability of products are ensured.

A novel and advantageous system for coating particles is provided. Particularly, a novel and advantageous system for coating particles using a helical conveyor is provided. Even more particularly, a novel and advantageous system for coating particles using a helical conveyor wherein vertical movement and cycling of material is generally done by the helical conveyor is provided.

To provide a reactor for bringing a layer uniform in particles or between particles and capable of encapsulating or coating a drug substance (API) and providing characteristics consistent by a drug preparation, and a method for coating the particles.SOLUTION: An reactor for coating particles includes: a fixed vacuum chamber for holding the bed of the particles to be coated; a vacuum port in the upper part of the chamber; a chemical delivery system formed so as to eject 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 is semi-cylindrical, and the paddle assembly includes; a drive shaft extended through the chamber in the semi-cylindrical axial direction; and a plurality of paddles extended in the radial direction from the drive shaft so as to rotate the drive shaft by the motor to rotate the plurality of paddles around the drive shaft.SELECTED DRAWING: Figure 1

The application provides a hierarchical heating directional circulation spray fluidized bed, which is composed of multiple groups of sequentially connected spray drying basic units. Each group of the spray drying basic units comprises a wind distribution plate, a nozzle, a first partition plate, a second partition plate and an inclined plate. The first partition plate and the second partition plate are arranged at intervals to form multiple groups of associated high-speed beds and low-speed beds. The nozzle is inserted from the center of the wind distribution plate of the high-speed bed, the nozzle outlet is located above the wind distribution plate, and the inclined plate is located in the low-speed bed. The temperature of the fluidizing air passing through each group of the basic units is sequentially increased. Thus, the particles form a regular and orderly directional circulation from the high-speed bed to the low-speed bed and then to the high-speed bed, and the particles obtain the coating solution in stages during the circulation process, and are dried to form a coating layer. The application has a simple structure and a reasonable design. The directional movement of the particles and the hierarchical heating are realized by the high-low partition plates and the adjustment of the fluidizing air speed and the air temperature, which is beneficial to the controllable drying and uniform flow of the particles and improves the uniformity of the particle coating.

A novel and advantageous system for coating particles is provided. Particularly, a novel and advantageous system for coating particles using a helical conveyor is provided. Even more particularly, a novel and advantageous system for coating particles using a helical conveyor wherein vertical movement and cycling of material is generally done by the helical conveyor is provided.

A device suitable for forming spherical particle clusters from fine powder is a device through which spherical particle clusters having a controlled particle size and a controlled hardness can be prepared from the fine powder by using a rolling granulation principle without adding any solution or solid binder. In particular, the device includes the following components: a) a preforming device for preforming particle clusters formed from fine powder, so that the particle clusters have a certain strength and shape while conveying the particle clusters to a next step at a certain speed; b) a spheroidizing device for further strengthening the particle clusters formed by a) the preforming device, so that the particle clusters have a higher sphericity and hardness; and c) a grading device for sieving the particle clusters spheroidized by b) the spheroidizing device to obtain particle clusters of different particle size ranges.

A method of preparing a 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. The temperature of the particles does not exceed 35° C. This produces a pharmaceutical composition comprising a drug containing core enclosed by one or more metal oxide materials.

The present invention relates to highly water-soluble enzyme granules suitable for use, for example, in animal feed and methods for preparing these granules. These particles have high enzyme content, low dust, high dispersibility in water, and high flowability, and can be prepared using fluidized bed processes.

The present invention relates to a method for producing a catalyst support used to produce a fibrous carbon nanostructure. This production method comprises: a stirring step for stirring a particulate support by rotating a substantially cylindrical rotary drum about the center axis thereof; a spraying step for spraying a catalyst solution onto the particulate support in the rotary drum; and a drying step for drying the catalyst solution attached to the particulate support by introducing a dry gas from the outside of the rotary drum into the rotary drum. In addition, in this production method, at least a portion of a time period in which the stirring step is performed overlaps with at least a portion of a time period in which the spraying step is performed.

A method of forming a high energy density composite cathode material is disclosed. The method comprises: providing a lithium rich manganese layered oxide (LRMO); coating the LRMO with a TiO2 precursor; and ball milling the TiO2 coated LRMO with LiH to form a LixTiO2 coated LRMO composite, wherein x is less than or equal to 1 and greater than zero.

The present invention relates to the technical field of the preparation of multilayer dripping pills. Disclosed are a dripping nozzle for preparing a multilayer dripping pill, a production system, and a production method. The dripping nozzle comprises an inner-layer material conduit, a middle-layer material conduit, and an outer-layer material conduit. A middle-layer material delivery channel is provided between the middle-layer material conduit and the inner-layer material conduit, and an outer-layer material delivery channel is provided between the outer-layer material conduit and the middle-layer material conduit. The inner-layer material conduit is in communication with an inner-layer material delivery pipe, and the inner-layer material delivery pipe is arranged in an inner-layer constant-temperature liquid heat preservation chamber. The middle-layer material delivery channel is in communication with a middle-layer material delivery pipe, and the middle-layer material delivery pipe is arranged in a middle-layer constant-temperature liquid heat preservation chamber. The outer-layer material delivery channel is in communication with an outer-layer material delivery pipe, and the outer-layer material delivery pipe is arranged in an outer-layer constant-temperature liquid heat preservation chamber. The present invention can keep the temperatures of the materials at the respective layers different and constant, and enables synchronous and uniform discharge of the materials at the respective layers in a reasonable proportion at the outlet of the dripping nozzle, thereby producing a multilayer dripping pill with a better effect.