WO2017002694A1 - Dispositif de fabrication continue de particules - Google Patents

Dispositif de fabrication continue de particules Download PDF

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Publication number
WO2017002694A1
WO2017002694A1 PCT/JP2016/068607 JP2016068607W WO2017002694A1 WO 2017002694 A1 WO2017002694 A1 WO 2017002694A1 JP 2016068607 W JP2016068607 W JP 2016068607W WO 2017002694 A1 WO2017002694 A1 WO 2017002694A1
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WO
WIPO (PCT)
Prior art keywords
particles
particle
processing container
airflow
processing
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/JP2016/068607
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English (en)
Japanese (ja)
Inventor
公二 久澄
長谷川　浩司
長門　琢也
小林　誠
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.)
Powrex KK
Original Assignee
Powrex KK
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 JP2015131036A external-priority patent/JP6526502B2/ja
Application filed by Powrex KK filed Critical Powrex KK
Priority to PCT/JP2016/068607 priority Critical patent/WO2017002694A1/fr
Priority to CA2991105A priority patent/CA2991105C/fr
Priority to EP16817802.8A priority patent/EP3318319B1/fr
Priority to CN201680023548.5A priority patent/CN107530664B/zh
Priority to KR1020177026743A priority patent/KR102503372B1/ko
Priority to US15/572,933 priority patent/US10661238B2/en
Publication of WO2017002694A1 publication Critical patent/WO2017002694A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Definitions

  • the present invention relates to a continuous particle production apparatus for continuously producing granulated particles or coated particles in various production fields such as pharmaceuticals, chemicals, foods, agricultural chemicals, feeds, cosmetics, and fine chemicals.
  • a so-called spray granulation type production device in which a raw material liquid in which raw material powder is dispersed or dissolved is sprayed from a spray nozzle in a processing vessel and dried.
  • an ejector having an introduction pipe and a blow pipe for blowing hot air into the introduction pipe is provided below the nozzle for spraying the raw material liquid. Then, with this ejector, the fine particles or small diameter granules in the flow chamber are guided to the vicinity of the nozzle and coated with spray droplets sprayed from the nozzle, and the kinetic energy of the fine particles or small diameter granules in the vicinity of the nozzle is increased. The adhesion between each other is prevented.
  • the particles coated in the flow chamber are sent from the discharge port to the classification mechanism, and the fine particles or small-sized granules that have not reached the predetermined particle size / weight are blown up by the air supplied to the classification mechanism and returned to the flow chamber. It is.
  • a means for introducing an air flow downward or obliquely downward along the inner surface of the conical portion is provided near the upper end of the conical portion of the spray drying unit, and the drying adhered to the inner surface of the conical portion.
  • the dry powder after completion of the process is blown off by the air flow introduced from the air flow introduction means and forcibly transferred to the lower fluid granulation section, and also prevents the dry powder from adhering to and depositing on the inner surface of the cone section.
  • a cyclone is interposed in the exhaust line, and fine powder mixed in the exhaust is recovered by the cyclone and returned to the fluidized bed granulation unit.
  • a plurality of sets of jet nozzles for blowing high-pressure gas to the fluidized bed of powder in the granulation chamber are provided to suppress aggregation of particles.
  • a plurality of nozzles for ejecting fluid are provided on the wall surface of the granulation chamber.
  • the liquid ejected from each nozzle can be switched to gas, liquid, or steam.
  • Japanese Patent No. 4658652 Japanese Patent Laid-Open No. 2002-45675 Japanese Patent No. 3894686 Japanese Patent No. 3907605
  • the adhesion of the particles to the inner wall surface of the processing container often becomes a problem.
  • these particles are wetted by spraying the raw material liquid, the binder liquid or the film liquid, the adhesion to the inner wall surface of the processing container is further increased.
  • the particles adhere to the inner wall of the processing container not only the yield of the granulated or coated product decreases, but the particles adhering to the inner wall of the processing container fall into the processing container and fall into the processing container. It causes the quality to deteriorate.
  • Patent Documents 1 and 3 do not consider the problem of particle adhesion to the inner wall surface of the processing container.
  • the dry powder adhering to the inner surface of the conical portion of the spray drying unit is blown off by the air flow introduced from the air flow introducing means to prevent the adhering / depositing of the dry powder on the inner surface of the conical portion.
  • Patent Document 4 the powder adhering to the wall surface of the granulation chamber can be removed by ejecting gas from the nozzle.
  • the adhesion of particles having high adhesion properties is eliminated only by ejecting the gas. Is difficult.
  • An object of the present invention is to provide a configuration capable of effectively removing particles adhering to the inner surface of a processing container in an apparatus for continuously producing granulated or coated particles, thereby collecting powder products. To improve the rate and quality.
  • the present invention provides a processing container, a processing gas introduction unit that introduces a processing gas into the processing container, a raw material liquid that includes a raw material powder, and a binder provided in the processing container.
  • the particles or particles of the raw material powder that are continuously or intermittently charged into the processing vessel are suspended and flowed by the processing gas and are brought into contact with the processing liquid sprayed from the spray nozzle for granulation or
  • a continuous particle manufacturing apparatus that performs a coating process and discharges the processed particles after the granulation or coating process is completed, the particles are taken out from the processing container.
  • a sorting unit that sorts the particles taken out by the particle take-out unit into processed and unfinished particles, and discharge that continuously or intermittently discharges the processed particles sorted by the sorting unit.
  • a particle return unit that returns the unfinished particles that have been sorted by the sorting unit to the inside of the processing container, and the particle returning unit includes the unfinished particles in the processing container along with an air flow.
  • a continuous particle manufacturing apparatus characterized by spraying on a wall surface.
  • the particle return unit may include a discharge nozzle that discharges an air flow including the unprocessed particles in a tangential direction or an up-down direction with respect to an inner wall surface of the processing container.
  • the particle extraction unit may include a suction nozzle that sucks and takes out particles in the processing container by a suction airflow.
  • the sorting unit may include a classification mechanism that sorts the particles taken out by the particle take-out unit into treatment-completed particles and treatment-unfinished particles using a classification airflow.
  • the classification mechanism may be connected to the particle take-out portion and the particle return portion via a cyclone mechanism.
  • particles adhering to the inner surface of the processing vessel can be effectively removed, thereby improving the yield and quality of the granular product. Improvements can be made.
  • FIG. 10 is a cross-sectional view of the stirring blade taken along the line cc of FIG. 9B. It is a figure which shows notionally the embodiment which installed multiple spray nozzles in the bottom part of a processing container, and is the perspective view which looked at the processing container from diagonally upward. It is the figure which looked at the processing container from the upper part.
  • FIG. 1 conceptually shows a configuration example of a continuous particle manufacturing apparatus according to the first embodiment.
  • the continuous particle manufacturing apparatus is mainly composed of a fluidized bed apparatus, and a processing container 1 of the fluidized bed apparatus includes a processing chamber 2 for granulating or coating a granular material, and a processing chamber 2.
  • a solid-gas separation filter unit 3 disposed above and an exhaust chamber (not shown) provided above the filter unit 3 are provided.
  • the processing gas A1 such as hot air supplied from the gas introduction unit 4 is introduced into the processing container 1 through the gas dispersion plate 2a.
  • the spray nozzle 5 sprays a raw material liquid in which the raw material powder is dispersed or dissolved in a binder liquid or a film agent liquid.
  • the fluidized bed apparatus may be a so-called rolling fluidized bed apparatus in which a rotating disk (rolling plate) is installed above the gas dispersion plate 2a via a predetermined gap.
  • a particle take-out unit that takes out the particles P of the granular material from the inside of the processing container 1, in this embodiment, the suction nozzle 6 and the sorting unit 7 described later.
  • a particle return portion that is sprayed onto the inner wall surface 1a of the processing container 1 along with the air flow, in this embodiment, a discharge nozzle 8 is installed.
  • the suction nozzle 6 is connected to a cyclone mechanism 7a of the selection unit 7 to be described later via a suction means such as a suction ejector 9 outside the processing container 1. Further, the discharge nozzle 8 is connected to the cyclone mechanism 7 a outside the processing container 1.
  • the culm sorting unit 7 includes an upper cyclone mechanism 7a and a lower classification mechanism 7b.
  • the cyclone mechanism 7a swirls the particles P (processed uncompleted particles P0, process completed particles P1) sucked by the suction nozzle 6 and taken out from the inside of the processing container 1 together with the suction airflow (suction air) to increase the flow velocity.
  • the weight is lowered and lowered by its own weight and sent to the classification mechanism 7b.
  • the particles P that descend from the cyclone mechanism 7a to the classification mechanism 7b include the unprocessed particles P0 and the process completed particles P1, but depending on the performance of the cyclone mechanism 7a, the particles P0 that are not processed by the cyclone mechanism 7a. It is also possible to sort out the processed particles P1.
  • the classification mechanism 7b sorts the unprocessed particles P0 and the processed particles P1 by the classification airflow (classification air) A2 that blows upward.
  • the processing completion particles P1 selected by the classification mechanism 7b are discharged from the classification mechanism 7b to the discharge unit 10 below. Further, the unprocessed particles P0 selected by the classification mechanism 7b are sent to the discharge nozzle 8 by the classification airflow A2 or the mixed airflow of the classification airflow A2 and the suction airflow from the suction nozzle 6, and the airflow from the discharge nozzle 8 And discharged to the inner wall surface 1a of the processing container 1.
  • the shape and installation state of the suction nozzle 6 are set so that a suction air flow is generated in the tangential direction of the processing container 1 to suck the particles P in the processing container 1.
  • the Further, the form and the installation state of the discharge nozzle 8 are set so that the unfinished particles P0 are blown in a tangential direction on the inner wall surface 1a of the processing container 1 along with the air flow.
  • the discharge portion 8a of the discharge nozzle 8 is preferably formed in a flat shape in a direction perpendicular to the inner wall surface 1a in order to enhance the spraying effect on the inner wall surface 1a of the processing container 1. Further, the discharge portion of the suction nozzle 6 may be formed in the same manner to enhance the suction effect on the particles P.
  • the raw material liquid sprayed upward from the spray nozzle 5 installed at the bottom of the processing container 1 is dried by the processing gas A1 introduced into the processing container 1, and the raw material powder dispersed or dissolved in the raw material liquid Dry particles are produced.
  • the dry particles come into contact with the liquid picking of the raw material liquid sprayed from the spray nozzle 5 while floating in the processing container 1 by the processing gas A1 introduced into the processing container 1.
  • the droplets of the raw material liquid adhering to the dry particles are dried by the processing gas A1, and the particles of the raw material powder being liquefied are attached to the dry particles as the core, and the particle diameter of the dry particles grows.
  • the dry particles are further brought into contact with the liquid pickling of the raw material liquid sprayed from the spray nozzle 5 while floating in the processing container 1 by the processing gas A1 introduced into the processing container 1, and the particle size is reduced. Grows further. And the process of such particle growth is repeated and the process completion particle
  • unprocessed particles P0 including raw material particles serving as nuclei
  • a predetermined particle size or weight
  • a predetermined particle size or weight
  • the processing completed particles P1 that have reached the weight
  • the unprocessed particles P0 and the processed particles P1 are selected, and the processed particles P1 are discharged as a particle product, and the processing is continued for the unprocessed particles P0 to finish the processed particles P1.
  • the particles P in the processing container 1 in which the unprocessed particles P0 and the processing completed particles P1 are mixed are sucked by the suction air flow of the suction nozzle 6 and transferred to the cyclone mechanism 7a of the sorting unit 7.
  • the particles P transferred to the cyclone mechanism 7a have a reduced flow velocity while swirling in the cyclone mechanism 7a, are lowered by their own weight, and are sent to the classification mechanism 7b.
  • the particles P sent to the classification mechanism 7b are sorted into unprocessed particles P0 and processed particles P1 by the classification air flow A2 that blows upward, and the processed particles P1 descend downward against the classification air flow A2 by their own weight. And discharged to the discharge unit 10.
  • the unprocessed particles P0 are blown upward on the classified airflow A2 and returned to the cyclone mechanism 7a.
  • the classified airflow A2 When there are unprocessed particles P0 that have not moved down the cyclone mechanism 7a, the classified airflow A2, Alternatively, it is transferred to the discharge nozzle 8 by a mixed airflow of the classification airflow A2 and the suction airflow from the suction nozzle 6.
  • the unprocessed particles P0 transferred to the discharge nozzle 8 reach the discharge portion 8a by the airflow of the classified airflow A2 flowing through the discharge nozzle 8 or the mixed airflow of the classified airflow A2 and the suction airflow from the suction nozzle 6.
  • a suction unit that generates a suction force toward the discharge unit 8a for example, a suction ejector, or an air flow supply unit that supplies an air flow toward the discharge unit 8a may be provided at the connection portion with the mechanism 7a. .
  • the particle size (particle diameter) to be selected is appropriately adjusted. can do.
  • the particle size (particle diameter) to be selected by controlling the time during which the classification airflow A2 is introduced into the classification mechanism 7b manually or by a timer device and appropriately adjusting the classification time (for example, 0 to 1 hour). The accuracy can be adjusted as appropriate.
  • the suction nozzle 6 sucks the particles P in the processing container 1 in the tangential direction of the processing container 1, and the discharge nozzle 8 uses the unprocessed particles P0 as air currents.
  • the inner wall surface 1a of the processing container 1 is blown in the tangential direction, and the suction force (suction air flow) by the suction nozzle 6 and the discharge force (discharge air flow) by the discharge nozzle 8 work in the same circumferential direction. .
  • a swirl airflow A3 in the direction shown in the figure is generated in the processing container 1 by the suction force (suction airflow) of the suction nozzle 6 and the discharge force (discharge airflow) of the discharge nozzle 8, and the processing container is generated by this swirl airflow A3.
  • the particles P in 1 are dispersed, and generation of coarse particles due to adhesion and aggregation of the particles is prevented. Further, since the movement of the particles is promoted by the swirling airflow A3, the adhesion of the particles to the inner wall surface 1a of the processing container 1 is also suppressed.
  • the above-described processing operation is performed continuously or intermittently, whereby the processing-completed particles P1 (particle products) are continuously manufactured from the raw material liquid.
  • a fine particle product having a small particle size for example, a fine particle having a particle size of 100 ⁇ m or less can be continuously produced with a high yield.
  • FIG. 3 conceptually shows the continuous particle manufacturing apparatus according to the second embodiment.
  • the continuous particle production apparatus according to this embodiment is substantially different from the continuous particle production apparatus according to the first embodiment in that a plurality of discharge nozzles 8 (three in the example shown in the figure) are installed. It is in.
  • the discharge nozzles 8 are branched from the common portion 8 b, and the discharge portions 8 a of the discharge nozzles 8 are arranged along the vertical direction of the processing container 1.
  • at least one discharge nozzle 8 may be individually connected to the cyclone mechanism 7 a of the sorting unit 7. Since other matters are the same as those in the first embodiment, a duplicate description is omitted.
  • FIG. 4 conceptually shows the continuous particle manufacturing apparatus according to the third embodiment.
  • the continuous particle production apparatus according to this embodiment is substantially different from the continuous particle production apparatus according to the first and second embodiments in that a plurality of suction nozzles 6 (two in the example shown in the figure) are used. It is in the point where it was installed.
  • each suction nozzle 6 is branched from the common portion 6b.
  • at least one suction nozzle 6 may be individually connected to the cyclone mechanism 7 a of the sorting unit 7 via the ejector 9. Since other matters are the same as those in the first and second embodiments, redundant description is omitted.
  • FIG. 5 conceptually shows a continuous particle manufacturing apparatus according to the fourth embodiment.
  • the continuous particle manufacturing apparatus according to this embodiment is substantially different from the continuous particle manufacturing apparatus according to the first and second embodiments in that the discharge unit 8a of the discharge nozzle 8 is installed downward, and the discharge nozzle 8 is that the unfinished particles P0 are sprayed downward on the inner wall surface 1a of the processing container 1 along with the air flow.
  • the configuration of this embodiment is particularly effective when a so-called Wurster fluidized bed apparatus is used as the fluidized bed apparatus. That is, in the Wurster type fluidized bed apparatus, a draft tube (inner cylinder) is installed above the spray nozzle, and the spray flow (spray zone) of the processing liquid sprayed upward from the spray nozzle is guided upward by the draft tube. .
  • the particles that have risen in the draft tube as a result of the spray flow of the treatment liquid are ejected from above the draft tube, and then the flow velocity is lowered and falls along the inner wall surface 1 a of the treatment container 1.
  • the unfinished particles P0 from the discharge nozzle 8 downward along the inner wall surface 1a of the processing container 1 along with the air flow the movement of the particles descending along the inner wall surface 1a of the processing container 1 is promoted.
  • the adhesion of particles on the inner wall surface 1a is suppressed. Since other matters are the same as those in the first and second embodiments, redundant description is omitted.
  • bypass path 7b1 is connected to the upper part of the classification mechanism 7b of the sorting section 7, and the bypass path 7b1 is connected to the second discharge nozzle 8 ′ and the discharge section 10 via a switching valve, for example, the three-way switching valve 11. Connected to the discharge path 10a.
  • the three-way switching valve 11 is configured to block communication between the bypass path 7b1, the second discharge nozzle 8 ′ and the discharge path 10a by electromagnetic force, air pressure, hydraulic pressure, or manual operation, and the bypass path 7b1 and the second path It is possible to switch between a state in which the discharge nozzle 8 ′ is in communication and a state in which the bypass path 7b1 and the discharge path 10a are in communication.
  • An opening / closing valve 12 is interposed between the cyclone mechanism 7a and the classification mechanism 7b of the sorting unit 7.
  • the structure and function of the second discharge nozzle 8 ′ as the particle return unit are the same as or equivalent to those of the discharge nozzle 8 described above. However, instead of the second discharge nozzle 8 ′, a simple connection pipe may be used.
  • the classification mechanism 7b has a structure in which classification airflow (classification air) A2 and the like can be introduced into the inside thereof from below and particles can be retained therein.
  • the lower part of the classification mechanism 7b is composed of a mesh plate provided with a large number of ventilation holes having a predetermined hole diameter, and the classification airflow A2 and the like flow into the classification mechanism 7b through this mesh plate, while the particles Has a structure that cannot pass through the mesh plate.
  • the classification airflow A2 is introduced into the classification mechanism 7b through the main pipeline 13.
  • the auxiliary pipeline 14 is branched and connected to the main pipeline 13 via the release valve 15.
  • An auxiliary air flow A3 is supplied to the auxiliary pipeline 14.
  • bypass path 7b1 and the second discharge nozzle 8 communicate with each other by the three-way switching valve 11, and the bypass path 7b1 and the discharge path 10a are blocked.
  • the release valve 12 is open, and the cyclone mechanism 7a and the classification mechanism 7b communicate with each other. Further, the open valve 15 is closed, and only the classification airflow A2 is introduced into the classification mechanism 7b.
  • the particles P sucked by the suction nozzle 6 and sent from the cyclone mechanism 7a of the sorting unit 7 to the classification mechanism 7b are sorted into unprocessed particles P0 and processed particles P1 by the classification airflow A2 blown upward,
  • the processing-completed particle P1 descends downward against the classification airflow A2 by its own weight and stays in the lower part of the classification mechanism 7b.
  • the unprocessed particles P0 are blown upward on the classified air flow A2, and a part of them is transferred from the bypass path 7b1 to the second discharge nozzle 8 'via the three-way switching valve 11, and the rest is the cyclone. It is transferred to the discharge nozzle 8 via the mechanism 7a.
  • the particles P descending through the cyclone mechanism 7a are pushed by the momentum of the classification airflow A2 that blows upward from the lower part of the classification mechanism 7b to be lowered to the classification mechanism 7b. Instead, it may flow to the discharge nozzle 8 as it is. In order to prevent this, it is necessary to temporarily weaken or stop the classification airflow A2, which leads to complication of operation. Further, if the classification airflow A2 is temporarily stopped, the mesh plate of the classification mechanism 7b may be clogged.
  • the classified air flow A2 and a part of the processing incomplete particles P0 riding on this are passed from the bypass path 7b1 via the three-way switching valve 11. Since it is transferred (released) to the second discharge nozzle 8 ′, the particles P descending via the cyclone mechanism 7a are smoothly transferred to the classification mechanism 7b, and the sorting operation (classification operation) by the classification mechanism 7b is performed. Done effectively.
  • the bypass path 7b1 and the second discharge nozzle 8 ′ are switched by switching the three-way switching valve 11 as shown in FIG. Between the bypass path 7b1 and the discharge path 10a. Further, the on-off valve 12 is closed to shut off the cyclone mechanism 7a and the classification mechanism 7b.
  • the opening valve 15 of the auxiliary pipeline 14 is opened, and the auxiliary air flow A3 is supplied from the auxiliary pipeline 14 to the main pipeline 13.
  • a strong airflow airflow stronger than the classification airflow A2
  • the processing completion particles P1 staying in the lower part of the classification mechanism 7b are The classification mechanism 7b is effectively discharged to the discharge unit 10 via the bypass path 7b1, the three-way switching valve 11 and the discharge path 10a.
  • a two-way switching valve that switches between a state in which the bypass path 7b1 and the second discharge nozzle 8 'are in communication and a state in which the bypass path 7b1 and the discharge path 10a are in communication is used. Also good.
  • the gas ejection nozzle 21 may be installed on the wall portion of the processing container 1.
  • a plurality of, for example, three gas ejection nozzles 21 are installed along the circumferential direction at a predetermined height position of the processing container 1.
  • the predetermined height position where the gas ejection nozzle 21 is installed may be one height position, or may be a plurality of height positions separated in the vertical direction.
  • Each gas ejection nozzle 21 includes a support tube 21a attached to an installation hole 1b provided in the wall portion of the processing vessel 1 and a nozzle tube 21b inserted into the support tube 21a so as to be movable forward and backward.
  • Configured as The support tube 21a is fixed to the installation hole 1b by an appropriate means such as welding, and the distal end surface 21a1 thereof is flush with the inner wall surface 1a of the processing container 1.
  • the nozzle tube 21b includes a gas passage 21b1 and a nozzle hole 21b3 that communicates with the gas passage 21b1 and opens laterally in the vicinity of the distal end surface 21b2.
  • the gas passage 21b1 is connected to a gas supply port 21c, and a gas pipe connected to a gas supply source (such as a compressed air source) (not shown) is connected to the gas pipe 21c.
  • a gas supply source such as a compressed air source
  • the nozzle hole 21b3 is inclined in a predetermined direction with respect to the gas passage 21b1, and is oriented in one circumferential direction along the inner wall surface 1a of the processing container 1.
  • the tip surface 21b2 of the nozzle tube 21b has a curvature along the inner wall surface 1a of the processing container 1, and as shown in FIG. 8B, the nozzle tube 21b is held in the retracted position in the support tube 21a.
  • the front end surface 21b2 is flush with the front end surface 21a1 of the support tube 21a and the inner wall surface 1a of the processing container 1.
  • the tip opening of the nozzle hole 21b3 is blocked by the inner wall surface of the support tube 21a.
  • the holding of the nozzle tube 21b with respect to the support tube 21a is performed by a set screw 21d that penetrates the wall portion of the support tube 21a and is screwed to the support tube 21a.
  • a set screw 21d that penetrates the wall portion of the support tube 21a and is screwed to the support tube 21a.
  • the set screw 21d is tightened at this position (the advance position of the nozzle tube 21b) to hold the nozzle tube 21b on the support tube 21a.
  • compressed gas compressed air or the like
  • the compressed gas enters the nozzle hole 21b3 through the gas passage 21b1 and is ejected from the tip of the nozzle hole 21b3 into the processing container 1.
  • the nozzle hole 21b3 is oriented in one circumferential direction along the inner wall surface 1a of the processing container 1, and the tip of the nozzle hole 21b3 is located near the inner wall surface 1a of the processing container 1.
  • the compressed gas ejected from the nozzle hole 21b3 becomes a swirling flow that flows in the circumferential direction along the inner wall surface 1a of the processing container 1 ⁇ see the gas ejection nozzle 21 on the lower side of FIG. 8A ⁇ . . Due to the swirling flow of the compressed gas, the particulate particles P adhering to the inner wall surface 1 a of the processing container 1 are effectively removed from the inner wall surface 1 a and returned to the fluidized bed in the processing container 1. Further, when the particles moving in the processing vessel 1 riding on the swirling flow of the compressed gas collide with or come into contact with the inner wall surface 1a, the particles are subjected to a compacting action, and the spheroidization and heaviness thereof are promoted. Is done.
  • a rotating plate having a rotating plate having a stirring blade for example, a boss portion 2 b 1 and a plurality of (for example, three) stirring blades 2 b 2 at the bottom of the processing vessel 1.
  • 2b may be installed.
  • the rotating plate 2b is connected to the rotation drive shaft 2c and rotates in the arrow direction (R direction) shown in FIG.
  • the boss 2b1 has a substantially conical shape and is located at the center of rotation.
  • the stirring blades 2b2 respectively extend from the outer periphery of the boss portion 2b1 in the outer peripheral direction.
  • a mesh net 2d is installed below the rotating plate 2b, and a processing gas such as hot air supplied from the gas introduction unit 4 (see FIG.
  • the rotational front surface 2b21 of the stirring blade 2b2 has predetermined inclination angles ⁇ and ⁇ .
  • the inclination angle ⁇ is an angle formed by the lower edge of the front surface 2b21 in the rotational direction of the stirring blade 2b2 and the tangent S at the outer peripheral side corner of the lower edge, and the inclination angle ⁇ is set to 60 to 100 °. Is preferred.
  • the inclination angle ⁇ is an angle formed by the rotation direction front surface 2b21 of the stirring blade portion 2b2 and the upper surface of the rotating plate 2b, and the inclination angle ⁇ is preferably set to 25 to 45 °.
  • the rotating plate 2b having the stirring blade 2b2 By installing the rotating plate 2b having the stirring blade 2b2 at the bottom of the processing vessel 1, in particular, by setting the inclination angles ⁇ and ⁇ of the rotation direction front surface 2b21 of the stirring blade 2b2 to the above values, Along with the rotation, the particles P in the processing container 1 are given a movement that moves in the swiveling direction along the inner wall surface 1a1 of the processing container 1. The movement of the particles P facilitates the suction of the particles P by the suction nozzle 6 (see FIG. 1 and the like), and the particles P are efficiently taken out from the inside of the processing container 1.
  • the particles P are efficiently sent from the suction nozzle 6 (particle take-out unit) to the sorting unit 7 and the effect of sorting (classifying) the particles P by the sorting unit 7 is increased.
  • the product yield (particles having a desired particle size) Yield).
  • a plurality of spray nozzles 5 are installed at the bottom of the fluidized bed container 1 to spray the treatment liquid upward. Also good.
  • the installation position of each spray nozzle 5 is preferably shifted in the circumferential direction with respect to each filter 3 a of the filter unit 3.
  • the positions where the particles P in the processing container 1 are sucked by the suction nozzle 6 are the lower part, the middle part, the upper part of the fluidized bed of particles P and the fluidized bed of the particles P in the processing container 1. Of these positions, at least one position may be set.
  • the raw material liquid is sprayed into the processing container 1 from the spray nozzle 5 to continuously manufacture the processed particles P1 (particle product).
  • the spray nozzle 5 can be configured to spray the binder solution or the film agent solution upward, downward, or tangentially. Alternatively, spraying in these directions may be arbitrarily combined.
  • grains by the discharge part 10 are performed continuously. Or it may be performed intermittently.

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  • Glanulating (AREA)

Abstract

Selon la présente invention, des particules (P) sont disposées à l'intérieur d'une cuve de traitement (1) dans laquelle sont mélangées des particules non traitées (P0) et des particules traitées (P1), lesdites particules (P) étant aspirées par une buse d'aspiration (6) et acheminées vers un mécanisme de classification (7b) à partir d'un mécanisme à cyclone (7a) d'une unité de tri (7). Des particules (P) qui sont acheminées vers le mécanisme de classification (7b), sont triées en particules non traitées (P0) et en particules traitées (P1) dans un flux d'air de classification (A2) qui est soufflé vers le haut, et les particules traitées (P1) tombent vers le bas contre le flux d'air de classification (A2) par leur propre poids et sont déchargées dans une unité de décharge (10). Les particules non traitées (P0) sont emportées par le flux d'air de classification (A2) et sont soufflées vers le haut, retournant vers mécanisme à cyclone (7a), et elles sont transférées vers une buse de décharge (8) par le flux d'air de classification (A2) ou un flux d'air mixte obtenu par le flux d'air de classification (A2) et un flux d'air d'aspiration provenant de la buse d'aspiration (6) conjointement avec les éventuelles particules non traitées (P0) qui ne sont pas tombées dans le mécanisme à cyclone (7a). Les particules non traitées (P0) transférées vers la buse de décharge (8) se déplacent vers une section de décharge (8a) sous l'effet du flux d'air du flux d'air de classification (A2) s'écoulant à l'intérieur de la buse de décharge (8), et sont soufflées contre une surface de paroi interne (1a) de la cuve de traitement (1) avec le flux d'air provenant de la section de décharge (8a).
PCT/JP2016/068607 2015-06-30 2016-06-23 Dispositif de fabrication continue de particules Ceased WO2017002694A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
PCT/JP2016/068607 WO2017002694A1 (fr) 2015-06-30 2016-06-23 Dispositif de fabrication continue de particules
CA2991105A CA2991105C (fr) 2015-06-30 2016-06-23 Dispositif de fabrication continue de particules
EP16817802.8A EP3318319B1 (fr) 2015-06-30 2016-06-23 Dispositif de fabrication continue de particules
CN201680023548.5A CN107530664B (zh) 2015-06-30 2016-06-23 连续式粒子制造装置
KR1020177026743A KR102503372B1 (ko) 2015-06-30 2016-06-23 연속식 입자 제조 장치
US15/572,933 US10661238B2 (en) 2015-06-30 2016-06-23 Continuous particle manufacturing device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2015-131036 2015-06-30
JP2015131036A JP6526502B2 (ja) 2014-06-30 2015-06-30 連続式粒子製造装置
PCT/JP2016/068607 WO2017002694A1 (fr) 2015-06-30 2016-06-23 Dispositif de fabrication continue de particules

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WO2017002694A1 true WO2017002694A1 (fr) 2017-01-05

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Citations (7)

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Publication number Priority date Publication date Assignee Title
JPS62130727U (fr) * 1986-02-04 1987-08-18
JPH1133384A (ja) * 1997-07-22 1999-02-09 Kawasaki Heavy Ind Ltd 連続造粒・コーティング方法及びその装置
JP2002045675A (ja) * 2000-08-08 2002-02-12 Ajinomoto Co Inc 新規噴霧乾燥造粒装置及び顆粒状食品の製造方法
JP2004122057A (ja) * 2002-10-04 2004-04-22 Pauretsuku:Kk 流動層装置
JP2004174481A (ja) * 2002-10-03 2004-06-24 Hosokawa Funtai Gijutsu Kenkyusho:Kk 造粒装置およびこの造粒装置を用いた粉末製造方法
JP2006263543A (ja) * 2005-03-23 2006-10-05 Okawara Mfg Co Ltd 小径重質顆粒の製造方法並びにその装置
JP2016026867A (ja) * 2014-06-30 2016-02-18 株式会社パウレック 連続式粒子製造装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62130727U (fr) * 1986-02-04 1987-08-18
JPH1133384A (ja) * 1997-07-22 1999-02-09 Kawasaki Heavy Ind Ltd 連続造粒・コーティング方法及びその装置
JP2002045675A (ja) * 2000-08-08 2002-02-12 Ajinomoto Co Inc 新規噴霧乾燥造粒装置及び顆粒状食品の製造方法
JP2004174481A (ja) * 2002-10-03 2004-06-24 Hosokawa Funtai Gijutsu Kenkyusho:Kk 造粒装置およびこの造粒装置を用いた粉末製造方法
JP2004122057A (ja) * 2002-10-04 2004-04-22 Pauretsuku:Kk 流動層装置
JP2006263543A (ja) * 2005-03-23 2006-10-05 Okawara Mfg Co Ltd 小径重質顆粒の製造方法並びにその装置
JP2016026867A (ja) * 2014-06-30 2016-02-18 株式会社パウレック 連続式粒子製造装置

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