WO2025009985A1 - Dispositif d'homogénéisation de systèmes poly-dispersés - Google Patents

Dispositif d'homogénéisation de systèmes poly-dispersés Download PDF

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Publication number
WO2025009985A1
WO2025009985A1 PCT/RU2023/000357 RU2023000357W WO2025009985A1 WO 2025009985 A1 WO2025009985 A1 WO 2025009985A1 RU 2023000357 W RU2023000357 W RU 2023000357W WO 2025009985 A1 WO2025009985 A1 WO 2025009985A1
Authority
WO
WIPO (PCT)
Prior art keywords
homogenizing
working medium
working
shaft
dispersed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/RU2023/000357
Other languages
English (en)
Russian (ru)
Inventor
Игорь Юрьевич ШЕЛЕХОВ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
"industrial Technological Innovations" LLC
Original Assignee
"industrial Technological Innovations" LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from EA202391689 external-priority patent/EA046266B1/ru
Application filed by "industrial Technological Innovations" LLC filed Critical "industrial Technological Innovations" LLC
Priority to CN202380090352.8A priority Critical patent/CN120897795A/zh
Priority to KR1020257015317A priority patent/KR20250086728A/ko
Publication of WO2025009985A1 publication Critical patent/WO2025009985A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/53—Mixing liquids with solids using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/57—Mixing high-viscosity liquids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/116—Stirrers shaped as cylinders, balls or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/05—Mixers using radiation, e.g. magnetic fields or microwaves to mix the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/20—Measuring; Control or regulation
    • B01F35/22—Control or regulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms

Definitions

  • the invention relates to process equipment that is intended for homogenizing conductive and resistive pastes used in the manufacture of thick-film passive electronic components, as well as in the manufacture of thick-film resistive heating elements for various electric heating systems in household, medical, agricultural and other technical devices.
  • a high-pressure homogenizer is known, described in patent RU2621773 (B01F 15/00, published 07.06.2017), which includes a set of pump pistons for feeding the liquid to be homogenized to a manifold, wherein each piston is connected to a corresponding oil-hydraulic cylinder; a homogenizing valve located downstream of said pump pistons; and an electronic system for monitoring and adjusting said pump pistons, independently ensuring control of the law of motion of each individual piston.
  • the said electronic control system is connected to a sensor located on the manifold for regulating the supply of oil to individual cylinders of the corresponding pistons in accordance with the pressure of the liquid to be homogenized, measured in the manifold, pumped by the said pistons, in order to maintain a stable flow rate and pressure, which ensures the elimination of the pulsation effect during pumping to reduce stress, leading to damage to the homogenizing valve and the above mentioned elements.
  • a mixer-homogenizer RU2314149 (B01F 5/00 published 10.01.2008) is known, containing a cylindrical body with inlet and outlet pipes.
  • a wave homogenizer RU152197 (B01F 9/00, B01F 9/02; B01F 11/00, published 10.05.2015) is known, containing a base mounted
  • the device is equipped with a frame and a brush-contact device for supplying power to the torsional vibration motor, a pair of vertical rigidly connected supports is used as a base, between which a horizontal shaft is installed, the frame is made in the form of a platform with a pair of posts perpendicular to its surface, the torsional vibration motor is installed between the posts in bearing supports, the brush-contact device is installed on one of the frame posts, the rotation drive is installed on the frame platform and connected to the torsional vibration motor using a belt drive, the frame is fixed on the shaft between the supports, and the raw material loading and mixture unloading system includes a frame rotation mechanism mounted on the base stand and connected to the shaft.
  • the raw material loading and mixture unloading system includes loading and unloading pipes that are not kinematically connected to the working chamber, and also includes a shutter on the pipe located on the cover of the working chamber.
  • the closest analogue is a device for mixing particles of a substance with a liquid, described in patent RU2137535 (B01F 3/12 B01F 13/02 published 20.09.1999), which contains a container, an inlet for placing particles of a substance in the container, a means for spraying a liquid over the particles of the substance in the container, a stirrer located in the container, and an outlet for releasing the substance mixed with the liquid from the container.
  • the fluidization means is adapted for fluidizing the particles of the substance in the container during the mixing operation.
  • thick-film passive electronic components and thick-film resistive heating elements are currently manufactured in several operations involving the successive application of layers and their heat treatment, which significantly complicates the manufacturing process.
  • the objective of the claimed technical solution is to create a device that allows for spatial uniform distribution of conductive currents in a dielectric binder. finely dispersed and ultra-dispersed chemical elements, which will ensure the stability of electrophysical characteristics and increase the value of specific power, which will optimize the technological process of manufacturing passive electronic components and thick-film resistive heating elements, as well as eliminate local defects.
  • the technical result of the claimed invention is an increase in the productivity of the homogenization device, a reduction in the technological process, a decrease in material consumption, and an increase in the reliability of the final product.
  • the set task is achieved in that in the device for homogenizing polydisperse systems, comprising a working tank with inlet and outlet pipes connected to a circulation pipeline on which control and regulating valves are installed, a homogenizer pump, tanks for loading and unloading the working medium containing the working medium, a mixer placed in the working tank consisting of two rotating shafts, wherein the device additionally comprises a mixing chamber with an air-powder mixture of charged finely dispersed and/or ultra-dispersed conductive particles, to which a circulation air duct with a fan is connected, a chamber with high-voltage electrodes, inlet valves connected to tanks with finely dispersed and ultra-dispersed chemical elements, wherein one of the mixer shafts - the main one, is connected to an electric motor controlled by a speed control unit, the second shaft - additional, is pressed against the main shaft with a gap between them, adjustable clamping and braking device.
  • the device for homogenizing polydisperse systems comprising a working tank with inlet and outlet
  • the high-voltage electrodes are installed hermetically through a dielectric threaded connection for charging conductive particles and breaking up conglomerates that form during storage of powder materials.
  • the amount of air-powder mixture of charged finely dispersed and/or ultra-dispersed conductive particles in the mixing chamber is formed by feeding powders from sealed containers with maintained constant pressure, installed on the circulation air duct through electromagnetic valves, which are controlled by an arithmetic logic electronic device.
  • the speed of movement of the air-powder mixture particles is determined by the fan and the speed control unit.
  • the thickness of the uniform distribution of the dielectric binder along the working and additional shaft is achieved by means of a gap between them, which is adjusted using a clamping and braking device.
  • the loading and unloading tanks for the working medium contain the working medium in the form of a dielectric binder or conductive paste or resistive paste.
  • FIG. 1 The general view of the device for homogenization of polydisperse systems is shown in Fig. 1.
  • the device for homogenizing polydisperse systems consists of a base 1 on which, using bolted connections, a working tank 2 is installed with an inlet pipe 3 and an outlet pipe 4, through which the working medium 5 is supplied by a homogenizer pump 6 along a circulation pipeline 7, which is connected by coupling connections.
  • Electromagnetic valves are installed on the pipeline using a flange connection: No. 1-8 - on the inlet pipe 3 and No. 2-9 - on the outlet pipe 4.
  • Electromagnetic valve No. 3-10, which is connected to the working medium loading tank I, and electromagnetic valve No. 4-12 with the pipe for unloading the working medium into the receiving tank 13 are connected to the circulation pipeline using flange connections.
  • a working shaft 14 is installed using gland connections, which is driven by an electric motor 15, and an additional shaft 16, which is pressed against the working shaft using a clamping and braking device 17.
  • a mixing chamber 18 is attached above the main tank using bolted connections, to which a circulation air duct 19, a fan 20 and a chamber are connected using flange connections. 22, through which an air-powder mixture 21 is supplied, the particles of which are charged with an electric charge in a chamber 22 with high-voltage electrodes 23 hermetically installed through a dielectric threaded connection, which are connected to a high-voltage source 24 through
  • the powder mixture enters the air duct from sealed containers 25, installed with the help of coupling connections in which a constant pressure is maintained, regulated by electromagnetic valve No. 5 26 and controlled by pressure gauge 27, mounted with the help of a threaded connection.
  • the amount of powder mixture supplied is regulated by electromagnetic valves with flange connection No. 6-28.
  • the operation of the valves is controlled by arithmetic-logical electronic device 29, the rotation speed of the homogenizer pump motors, fan and main shaft is controlled by the frequency control unit
  • the device works as follows:
  • a dielectric binder for example, a copolymer of methacrylic acid and butyl ester of methacrylic acid dissolved in butyl acetate
  • a dielectric binder is fed into a container 2 installed on a base 1.
  • the feed rate is regulated by the speed control unit.
  • a homogenizer pump for example, a homogenizer pump of the NGD series
  • electromagnetic valve No. 1-8 and electromagnetic valve No. 3-10 are switched to the open state.
  • the dielectric binder gets onto the working 14 and additional 16 shafts, the gap between the shafts is regulated using the clamping and braking device 17, the main shaft is driven by motor 15, which is also controlled by the speed control unit 3 of rotation.
  • the dielectric binder is evenly distributed over shafts with a layer thickness equal to the gap between the shafts, gradually being replaced by a new batch, and the distributed batch flows down to the bottom of the working tank.
  • the arithmetic logic unit closes valve No. 3-10 and opens valve No. 2-9, the dielectric liquid begins to move along the circulation pipeline 7 in a closed cycle.
  • a volumetric dispenser of powder materials for electrostatic application of coatings to electric lamp bulbs RU2200939 G01F 11/18, B05B 5/00 published on 20.03.2003
  • a method for manufacturing a thick-film resistive heater RU2463748 H05B 3/00, published on 10.10.2012
  • a mixing chamber 18 is installed above the main container, in which an air-powder mixture of charged finely dispersed and/or ultrafine conductive particles is formed, which are uniformly distributed over the surface of a dielectric binder uniformly distributed over the shafts, the number of uniformly distributed parts depends on the magnitude
  • the speed of movement of particles is determined by the fan 20 and the speed control unit, the air-powder mixture moves in a closed cycle along the circulation air duct in which the chamber 22 is installed with high-voltage electrodes against which the conductive particles hit, thereby charging them and breaking up the conglomerates that form during storage of powder materials.
  • the amount of charge is regulated by the high-voltage source 24, the amount of finely dispersed and/or ultra-dispersed conductive particles by electromagnetic valves No. 6 - 28, which are fed into a circulation air duct from sealed containers 25, in which a constant pressure is maintained, controlled by a pressure gauge 27 and regulated by electromagnetic valve No. 5 - 26.
  • valves and containers The number of valves and containers is set depending on the amount of chemical elements introduced into the composition of the prepared conductive or resistive pastes. After several mixing cycles, the working medium obtained in the working container is discharged through electromagnetic valve No. 4 with a discharge branch pipe 12 into a receiving container 13.
  • the device ensures the achievement of the declared technical result and task:
  • This device ensures the required degree of homogeneity of distribution of chemical elements and phases throughout the volume of a heterophase system.
  • the device allows processing ready-made conductive and resistive pastes, additionally introducing finely dispersed and ultra-dispersed conductive particles into their composition, which allows changing their electrical resistance, stabilizing electrical resistance, and increasing specific power.
  • the device allows to increase productivity and reduce the technological process of production of thick-film passive electronic components and thick-film resistive heating elements, and also allows to reduce material consumption, increase reliability, eliminate local defects in thick-film passive elements and in thick-film heating elements.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

L'invention concerne un dispositif d'homogénéisation de systèmes poly-dispersés qui comprend un récipient de travail avec des conduits d'entrée et de sortie, connecté à un conduit de circulation sur lequel sont montés des clapets de commande et de régulation, une pompe-homogénéisateur, des récipients de chargement et de déchargement de milieu de travail contenant un milieu de travail, un mélangeur disposé dans le récipient de travail et comprenant deux arbres rotatifs. Le dispositif comprend également une chambre de mélange comprenant un mélange air-poudre de particules conductrices de courant finement dispersées et/ou ultra-dispersées, à laquelle est connecté un conduit de circulation avec un ventilateur, une chambre avec des électrodes haute tension, des clapets d'admission connectés aux récipients avec des éléments chimiques finement dispersés et/ou ultra-dispersés. Un des arbres du mélangeur est un arbre principal qui est connecté à un moteur électrique commandé par une unité de commande d'ajustement de la fréquence de rotation, le second arbre est complémentaire et est pressé contre l'arbre principal en respectant un jour entre eux de manière à ajuster le dispositif de pressage-freinage. On assure ainsi une optimisation du processus industriel de production de composants électroniques passifs et d'éléments de chauffage résistifs en couche épaisse, ainsi que l'élimination des défauts locaux.
PCT/RU2023/000357 2023-07-06 2023-11-16 Dispositif d'homogénéisation de systèmes poly-dispersés Ceased WO2025009985A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380090352.8A CN120897795A (zh) 2023-07-06 2023-11-16 用于均质化多分散体系的装置
KR1020257015317A KR20250086728A (ko) 2023-07-06 2023-11-16 다분산 시스템들을 균질화하는 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EA202391689 2023-07-06
EA202391689 EA046266B1 (ru) 2023-07-06 Устройство гомогенизации полидисперсных систем

Publications (1)

Publication Number Publication Date
WO2025009985A1 true WO2025009985A1 (fr) 2025-01-09

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PCT/RU2023/000357 Ceased WO2025009985A1 (fr) 2023-07-06 2023-11-16 Dispositif d'homogénéisation de systèmes poly-dispersés

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KR (1) KR20250086728A (fr)
CN (1) CN120897795A (fr)
WO (1) WO2025009985A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU143343A1 (ru) * 1961-04-20 1961-11-30 А.И. Бут Способ смешивани материалов в электрическом поле
US4034966A (en) * 1975-11-05 1977-07-12 Massachusetts Institute Of Technology Method and apparatus for mixing particles
SU860848A1 (ru) * 1979-12-27 1981-09-07 Рубежанский филиал Ворошиловградского машиностроительного института Роторный аппарат
SU1299615A1 (ru) * 1985-08-08 1987-03-30 Сумский филиал Харьковского политехнического института им.В.И.Ленина Устройство дл гомогенизации пастообразных материалов
DE19538476C2 (de) * 1995-10-16 1997-09-11 Netzsch Erich Holding Vorrichtung zur Erzeugung einer pastösen Suspension
DE20307518U1 (de) * 2002-07-31 2003-08-07 Vosschemie GmbH, 25436 Uetersen Schlauchmischer zum Vermischen von pastösen Massen oder Flüssigkeiten aus mindestens zwei Komponenten und Aufnahmebehälter der Komponenten
RU2245188C2 (ru) * 2000-01-31 2005-01-27 Тетра Лаваль Холдингз Энд Файненс С.А. Способ и устройство для смешивания

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU143343A1 (ru) * 1961-04-20 1961-11-30 А.И. Бут Способ смешивани материалов в электрическом поле
US4034966A (en) * 1975-11-05 1977-07-12 Massachusetts Institute Of Technology Method and apparatus for mixing particles
SU860848A1 (ru) * 1979-12-27 1981-09-07 Рубежанский филиал Ворошиловградского машиностроительного института Роторный аппарат
SU1299615A1 (ru) * 1985-08-08 1987-03-30 Сумский филиал Харьковского политехнического института им.В.И.Ленина Устройство дл гомогенизации пастообразных материалов
DE19538476C2 (de) * 1995-10-16 1997-09-11 Netzsch Erich Holding Vorrichtung zur Erzeugung einer pastösen Suspension
RU2245188C2 (ru) * 2000-01-31 2005-01-27 Тетра Лаваль Холдингз Энд Файненс С.А. Способ и устройство для смешивания
DE20307518U1 (de) * 2002-07-31 2003-08-07 Vosschemie GmbH, 25436 Uetersen Schlauchmischer zum Vermischen von pastösen Massen oder Flüssigkeiten aus mindestens zwei Komponenten und Aufnahmebehälter der Komponenten

Also Published As

Publication number Publication date
CN120897795A (zh) 2025-11-04
KR20250086728A (ko) 2025-06-13

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