WO2005099912A1 - コーティング装置 - Google Patents
コーティング装置 Download PDFInfo
- Publication number
- WO2005099912A1 WO2005099912A1 PCT/JP2004/010873 JP2004010873W WO2005099912A1 WO 2005099912 A1 WO2005099912 A1 WO 2005099912A1 JP 2004010873 W JP2004010873 W JP 2004010873W WO 2005099912 A1 WO2005099912 A1 WO 2005099912A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotating drum
- coating
- ventilation
- disk plate
- rotary drum
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims description 57
- 239000011248 coating agent Substances 0.000 title claims description 51
- 239000000843 powder Substances 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims description 40
- 238000009423 ventilation Methods 0.000 description 58
- 239000008187 granular material Substances 0.000 description 45
- 239000010410 layer Substances 0.000 description 26
- 238000012545 processing Methods 0.000 description 20
- 238000004140 cleaning Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 10
- 238000001816 cooling Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 239000007921 spray Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 230000035699 permeability Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000009495 sugar coating Methods 0.000 description 5
- 235000019219 chocolate Nutrition 0.000 description 4
- 239000007888 film coating Substances 0.000 description 4
- 238000009501 film coating Methods 0.000 description 4
- 238000010200 validation analysis Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241000234282 Allium Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007901 soft capsule Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003826 tablet Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/025—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the objects or work being present in bulk
- B05B13/0257—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the objects or work being present in bulk in a moving container, e.g. a rotatable foraminous drum
-
- 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
- B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/60—Ventilation arrangements specially adapted therefor
Definitions
- the present invention relates to a coating apparatus for coating, mixing, drying and the like of powders and granules of pharmaceuticals, foods, agricultural chemicals and the like, and more particularly to a coating apparatus provided with a rotating drum that is driven to rotate around an axis.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-2005-8125
- Patent Document 2 Japanese Patent Publication No. 439-19511
- Patent Literature 3 Japanese Patent Publication No. 11-43-37
- Patent Document 4 Japanese Patent Application Laid-Open No. 7_3284804
- Patent Document 5 Japanese Utility Model Application Publication No. 56-7569
- Patent Document 6 Japanese Patent Publication No. 55-5-491
- Patent Document 7 Japanese Patent Application Laid-Open No. 58-41013
- Patent Document 1 discloses a coating apparatus provided with a ventilation type rotating drum 30 that is driven to rotate about a horizontal axis A.
- the rotating drum 30 has a polygonal cylindrical peripheral wall portion 30 c, a polygonal pyramid-shaped end wall portion 30 a extending from one end of the peripheral wall portion 30 c toward one axial direction, and a peripheral wall portion 30 c From the other end to the other axial direction And the other end wall portion 30b of the polygonal pyramid extending therefrom.
- a perforated plate 33 is attached to each surface of the peripheral wall portion 30c, and the perforated portion of the perforated plate 33 provides air permeability to the peripheral wall portion 30c.
- a jacket 34 is attached to the outer peripheral side of each perforated plate 33, and a ventilation channel 35 is formed between the jacket 34 and the perforated plate 33.
- a distributor 37 that controls the ventilation of the processing gas such as dry air to the rotating drum 30 is provided.
- the distributor 37 has a function of connecting the ventilation channel 35 coming to a predetermined position with the rotation of the rotating drum 30 to the supply duct 38 and the exhaust duct 39, respectively.
- the ventilation channel 3 & communicates with the air supply duct 38, and a certain ventilation channel 35 is formed.
- its ventilation channel 35 communicates with the exhaust duct 39. Therefore, the processing gas introduced from the air supply duct 38 into the ventilation channel 35 above the rotating drum 30 flows into the inside of the rotating drum 30 through the multi-hole plate 33 above the peripheral wall portion 30c. After passing through the inside of the granular material layer (rolling bed) 31, it flows out to the ventilation channel 35 through the porous plate 33 below the peripheral wall portion 30 c, and further flows through the ventilation channel 35.
- the exhaust duct 39 Through the exhaust duct 39.
- Patent Documents 2 to 5 also disclose a coating apparatus provided with a ventilated rotary drum.
- a porous portion is provided on the peripheral wall of the rotating drum to provide air permeability, and the porous portion is covered with a jacket from the outer peripheral side to form a ventilation channel.
- the rotating drum itself does not have air permeability.
- the rotating drums of Patent Documents 6 and 7 have a circular cross section and a bulging shape in the axial center, and are also called onion pans. This rotary drum is generally disposed with its axis inclined with respect to the horizontal. Rotating dora
- Ventilation to the ⁇ part of the rotating drum is performed by using air ducts and exhaust pipes.
- a blower tube is inserted into the inside of the rotary drum from the opening at one end of the rotary drum to supply air, and the air is supplied to the opening at one end of the rotary drum.
- An exhaust pipe is connected to exhaust air.
- the processing gas such as dry air only comes into contact with the surface layer of the granular material layer, and the inside of the granular material layer is not sufficiently ventilated. Therefore, in the configuration shown in FIGS.
- the temperature of the rotating drum is relatively higher than the temperature of the granular material in the thiocholate coating, but the coating disclosed in Patent Documents 1 to 5 is preferred.
- the ventilation channel is provided on the outer peripheral side of the rotating drum, the rotating drum cannot be cooled or heated from the outer peripheral side. If the coating material adheres to the inner wall of the rotating drum, cleaning work and validation work after the coating treatment become complicated, and also loss of the coating material and a reduction in product yield.
- Adhesion causes poor ventilation due to blockage of ventilation holes, complicates cleaning work after coating, and causes contamination.
- the air pipes or exhaust pipes buried inside prevent smooth flow of the granular material layer, which may cause deterioration of coating quality. Disclosure of the invention
- An object of the present invention is to provide a coating apparatus having excellent cleaning properties and validation after cleaning.
- Another object of the present invention is to provide a coating apparatus which is excellent in quality and efficiency of a coating process.
- the present invention relates to a coating apparatus including a ventilation type rotary drum in which a powdery or granular material to be processed is housed and driven to rotate around its axis.
- the axis is inclined with respect to the horizontal line, and one end on the upper side of the slope, the other end on the lower side of the slope, and one end and the other end are continuous along the axial direction.
- a vent is provided at each of the one end and the other end, and the powder near the other end flows upward in the center region of the inner surface of the other end.
- An arrangement is provided in which a raised ridge is provided.
- the rotary drum is of a ventilation type, but ventilation holes are provided at one end and the other end, and a ventilation portion (porous portion) for supply and exhaust is provided on the peripheral wall portion. Not provided. Therefore, like a conventional ventilated rotary drum, 2004/010873
- the coating apparatus of the present invention includes a ventilation type rotary drum, but has no air supply / exhaust ventilation section (porous portion) on the peripheral wall of the rotary drum.
- the peripheral wall of the rotary drum is airtight.
- One of the one end and the other end is dedicated to the supply of air, and the other is dedicated to the exhaust, and the processing air supplied to the inside of the rotating drum through the supply end of the one end or the other end.
- the body hot air, cold air, etc.
- the body passes through the granular material layer inside the rotating drum and is discharged from the other end or one end of the exhaust port. For this reason, ventilation is distributed to the inside of the granular material layer, and treatment such as drying of the granular material layer is sufficiently performed without unevenness.
- the rotating drum can be cooled or heated from the outer peripheral side of the peripheral wall portion, for example, the rotating drum is cooled by cooling means such as cooling water or cold air at the time of sugar coating, and the rotating drum is heated at the time of chocolate coating.
- cooling means such as cooling water or cold air at the time of sugar coating
- the rotating drum is heated at the time of chocolate coating.
- a heating means such as hot air or a heater
- the coating substance can be prevented from adhering to the inner wall of the rotating drum.
- the coating apparatus of the present invention it is possible to efficiently perform various types of coating processes such as film coating, sugar coating, and chocolate coating with high quality.
- a cooling unit and a heating unit on the outer peripheral side of the peripheral wall of the rotating drum.
- a cooling means for example, a nozzle or the like which injects cooling water or cold air to the outer periphery of the peripheral wall portion can be adopted.
- the heating means for example, hot water or hot air can be sprayed onto the outer periphery of the peripheral wall portion. Nozzles can be used. In addition, a heater such as an infrared heater can be used as the heating means.
- the temperature of the granular material layer inside the rotating drum is measured by an appropriate means such as a temperature sensor, and the temperature of the granular material layer is set to a desired value based on the measurement result.
- the cooling means and the heating means may be controlled (the temperature, flow rate, current value, etc. of the cooling or heating medium) may be controlled so that
- the rotating drum is disposed with its axis inclined with respect to the horizontal line.
- the axis is arranged at a predetermined angle ⁇ ⁇ with respect to the horizontal.
- the rotating drum rotates around an inclined axis, so that the powder and the granular material contained in the rotating drum can be moved in the rotational direction and the axial direction with the rotation of the rotating drum. Since the fluid flows in a state accompanied by the mixing, the effect of stirring and mixing the granular material layer is high.
- the protruding portion is provided in the center region of the inner surface of the other end, and the powder near the other end lifted forward in the rotation direction with the rotation of the rotating drum is: When it flows under its own weight (gravity) and returns to the rear in the rotational direction, it comes into contact with the surface of the ridge, and is guided by the surface of the ridge to flow upward (one end side).
- FIG. 1 is a partial longitudinal sectional view showing the entire configuration of a coating apparatus according to an embodiment.
- FIG. 2 is a partial longitudinal sectional view showing a rear portion of the rotary drum. '
- FIG. 3 is a partial longitudinal sectional view showing a rear portion of the rotary drum.
- FIG. 4 is a perspective view showing a rotating drum.
- FIG. 5 is an inner view (view from the front) of the first disk plate.
- FIG. 6 is a view of the second disk plate as viewed from the rear.
- FIG. 7 is an inner view (view from the front) of the first disk plate, showing another form of the raised portion 21b.
- FIG. 8 is a plan view (FIG. A) and a cross-sectional view (FIG. B) showing another form of the raised portion.
- FIG. 9 is a plan view (FIG. A) and a cross-sectional view (FIG. B) showing another form of the raised portion.
- FIG. 10 is a vertical sectional view showing a conventional coating apparatus. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 shows a coating apparatus 1 according to this embodiment.
- a rotary drive mechanism 3 for rotating in the opposite direction; and the rotary drum 2 and the rotary drive mechanism 3 are housed in a casing 4.
- the rotary drive mechanism 3 transfers the rotational power of a drive motor 3a with a reduction gear through a chain (not shown) and a sprocket 3f to the rear end (inclination) of the rotary drum 2.
- a drive motor 3a with a reduction gear through a chain (not shown) and a sprocket 3f to the rear end (inclination) of the rotary drum 2.
- the drive shaft 3b is connected to the hollow drive shaft 3b connected to the lower end.
- the drive shaft 3b and, consequently, the rotary drum 2 are rotatably supported by an inclined wall portion 4a1 perpendicular to the axis A in the internal partition wall portion 4a of the casing 4 via a bearing 3c. That is, as shown in FIGS. 2 and 3, the cylindrical housing 3 e is fixed to the inclined wall 4 a 1, and the dynamic shaft 3 b is inserted into the hole of the cylindrical housing 3 e, and the bearing 3 is inserted. It is rotatably supported by c.
- a sprocket 3 f is attached to the rear end of the squeeze shaft 3 b so as to be integrally rotatable.
- the rotating drum 2 has a front end along its axial direction.
- the peripheral wall portion 2a is formed in a polygonal cylindrical shape (the cross section is a polygonal shape), and the peripheral wall portion 2a gradually moves from the front end portion and the rear end portion toward the axial center. It has a shape whose diameter increases.
- the cross section P1 including the large diameter portion 2a2 of the peripheral wall portion 2a has a polygonal shape (for example, a octagon) orthogonal to the axis A.
- the peripheral wall portion 2a is formed of a metal plate having no ventilation holes (porous portion) such as a stainless steel plate, and the diameter gradually decreases from the large diameter portion 2a2 toward the front end and the rear end.
- Each of the portions is formed by alternately connecting a plurality of triangular portions whose vertices point toward the front and a plurality of triangular portions whose vertices point toward the rear in the circumferential direction.
- the front end is constituted by an annular portion 2a1
- the rear end is constituted by a first disk plate 21 of a ventilation mechanism 6 described later.
- the entire front end is open, and the opening serves as a vent 5 for processing gas such as dry air (hot air or cold air).
- a paffle for mixing and stirring the granular material layer 11 may be provided on the inner surface of the peripheral wall portion 2a, if necessary.
- a ventilation duct 7 is mounted on a corner portion 4 c on the upper front side of the casing 4, specifically, on an upper wall portion of the corner portion 4 c facing the front end of the rotating drum 2.
- a ventilation duct 8 is mounted on the upper wall of the rear side of the casing 4, specifically, on the upper wall of the casing 4 located above the rear end of the rotary drum 2.
- a processing gas flow space s including a mouth is formed, and the flow space S is isolated (sealed) from outside air by a labyrinth seal Rs.
- a spray nozzle 10 for spraying a spray liquid such as a coating liquid is disposed inside the rotary drum 2.
- a ventilation mechanism 6 is disposed on the rear end side of the rotary drum 2. As shown in FIGS. 2 and 3, the ventilation mechanism 6 includes a first disk plate 21 constituting a rear end of the rotary drum 2 and a second disk plate disposed opposite to the first disk plate 21. Rate 2 and 2 are provided. The first disk plate 21 rotates with the rotating drum 2, and the second disk plate 22 does not rotate. In this embodiment, the second disk plate 22 can slide in the axial direction with respect to the first disk plate 21.
- the first disk plate 21 has ventilation holes 21 a composed of porous portions arranged along a single annular shape centered on the axis A of the rotating drum 2.
- the drive shaft 3b shown in FIG. 1 is connected to the outer side (rear side).
- the ventilation holes 2 la are formed of a plurality of through holes formed in the main body of the first disk plate 21 in the circumferential direction so as to be distributed along the annular shape, and each of the holes is made of punching metal or the like. It is configured by mounting a perforated plate.
- the vent 21a may extend over the entire circumference of the above annular shape. Further, the outer peripheral edge of the ventilation port 2la substantially coincides with the inclined lower end of the peripheral wall 2a.
- a raised portion 21b is formed in a central region of the inner surface 21c of the first disk plate 21.
- the raised portion 21b has a hemispherical shape, and as shown in FIGS. 2 and 3, has a hollow shape.
- the raised portion 21b is arranged so that the center thereof coincides with the center (the axis A) of the inner surface 21c, and is fixed to the inner surface 21c by an appropriate means such as a bolt. ing.
- the second disk plate 22 has an annular shape whose outer diameter is larger than the outer diameter of the vent 21 a of the first disc plate 21 and whose inner diameter is smaller than the inner diameter of the vent 21 a.
- the second air cylinder 19 is slid in the direction along the axis A. More specifically, as shown in FIG. 2, at the rear side of the second disk plate 22, the second partition plate 4 a of the casing 4 has a second inclined wall 4 a 1 parallel to the axis A. An air cylinder 19 is installed, and a tip of a piston rod 19 a of the second air cylinder 19 is connected to the second disk plate 22. Further, as shown in FIG. 3, a plurality of (for example, two) guide mechanisms 20 are provided behind the second disk plate 22.
- the guide mechanism 20 is slidable in a direction parallel to the axis A on the guide member 20 a fixed to the inclined wall portion 4 a 1 of the internal partition wall portion 4 a of the casing 4 and the guide member 20 a. And a second disc plate 22 is connected to the tip of the guide rod 20b.
- a communication hole 22 a is formed at a position closer to the lower side of the second disk plate 22.
- the communication hole 22 a is located, for example, below the left-right center line in the figure of the second disk plate 22. It is formed in the area to the right of the vertical center line (the area below and in front of the rotation direction).
- the communication holes 2 2 a of the second disk plate 22 are formed at positions overlapping with the granular material layer 11 when the rotary drum 2 rotates (when processing the granular material). Is done.
- the communication hole 22 a is formed in a substantially quadrant arc shape in the above-mentioned area, and the inner and outer diameters thereof substantially coincide with the inner and outer diameters of the vent 21 a of the first disk plate 21. ing.
- a vent of a ventilation duct 8 is connected to an outer surface (rear surface) of the second disk plate 22 so as to cover the communication hole 22 a, and a vent 21 of the first disk plate 21 is formed.
- a communicates with the ventilation duct 8 at a predetermined position overlapping the communication hole 22 a of the second disk plate 22. Therefore, when the rotary drum 2 rotates, the internal space of the rotary drum 2 and the ventilation duct 8 always communicate with the ventilation hole 21 a of the first disk plate 21 and the communication hole 22 a of the second disk plate 22. And communicate with each other at a predetermined position where they overlap.
- the second disk plate 22 is pressed by the extension of the second air cylinder 19 during processing of the granular material, and a slight gap is formed between the second disk plate 22 and the first disk plate 21. It is in a state where they face each other.
- the gap between the opposing surfaces of the first disk plate 21 and the second disk plate 22 is sealed by a labyrinth seal Rx.
- the labyrinth seal RX is disposed on the outer peripheral side and the outer peripheral side of the communication hole 22 a of the first disk plate 21 and the communication hole 22 a of the second disk plate 22, respectively.
- the second disk plate 22 slides in the axial direction due to the contraction operation of the second air cylinder 19 when discharging the granular product or performing inspection after cleaning the device. Driven to move away from the first disk plate 21.
- the ventilation duct 8 is configured to be separable in the casing 4, and when the second disk plate 22 slides and separates from the first disk plate 21, the ventilation duct 8 is opened. Duct 8 is separated. That is, the ventilation duct 8 has a first portion 8 a attached to the upper wall of the casing 4 and a second portion 8 b attached to the second disk plate 22. At this time, the joint end face of the first portion 8a and the joint end face of the second portion 8b are in a state of being joined to each other via at least one of sealing members such as O-rings. In such a state, when the second disk plate 22 slides and separates from the first disk plate 21, as shown by the phantom line in FIG.
- the rotary drum 2 When a coating process of a granular material (such as a tablet) is performed using the coating apparatus 1 of this embodiment, the rotary drum 2 is rotated through a vent 5 at one end and a vent 21 a at the other end.
- the processing gas such as dry air is supplied and exhausted to the ⁇ part of the drum 2.
- one end of the rotary drum 2 is on the air supply side, and the other end is on the exhaust side.
- the ventilation port 5 at one end of the rotary drum 2 is an air supply port (hereinafter, referred to as “air supply port 5”)
- the ventilation duct 7 at one end side is an air supply duct (hereinafter, “air supply duct”).
- exhaust port 21a an exhaust port
- ventilation duct 8 an exhaust duct.
- one end of the rotating drum 2 may be on the exhaust side and the other end may be on the air supply side depending on the use conditions and processing conditions.
- Powders such as tablets to be coated are introduced into the inside of the rotary drum 2 through a vent (opening) 5 at one end of the rotary drum 2. Then, the rotating drum 2 is driven to rotate by the tiller drive mechanism 3 and rotates about an axis A inclined at a predetermined angle 0 with respect to the horizontal line. When mixed, a granular layer (rolling bed) 11 is formed. Since the axis A of the rotary drum 2 is inclined at a predetermined angle ⁇ , the surface layer of the granular material layer 11 is, in the direction of the axis A, as shown in FIG. It is formed so as to extend over the first disk plate 21 at the rear end, and is formed so as to be lifted in the rotation direction from the rear in the rotation direction to the front as shown in FIG.
- a spray liquid such as a coating liquid is sprayed from the spray nozzle 10 onto the powder layer 11 as described above.
- the spray liquid sprayed on the granular material layer 11 is spread on the surface of each granular material particle by the stirring and mixing action of the granular material layer 11 accompanying the rotation of the rotary drum 2.
- the spray liquid spread on the surfaces of the powder particles is dried by a processing gas (warm air or the like) supplied to the inside of the rotary drum 2.
- This processing gas flows into the inside of the rotary drum 2 from the air inlet 7 a of the air supply duct 7 through the air supply port 5 at one end of the rotary drum 2, and passes through the inside of the granular material layer 11. After passing through, it flows out to the exhaust duct 8 through the exhaust port 21 a of the first disk plate 21 and the communication hole 22 a of the second disk plate 22.
- the processing gas passes through the granular material layer 11
- the spray liquid spread on the surface of each granular material particle is uniformly dried without unevenness, and a high quality coating film is formed.
- cold water or hot water is sprayed toward the peripheral wall portion 2a of the rotary drum 2 from the spray nozzle 14 provided on the upper wall portion of the casing 4 so as to rotate.
- the cooling drum 2 can be cooled or heated from the outer peripheral side.
- the rotating drum 2 is cooled during sugar coating, the rotating drum 2 is heated during chocolate coating, and the rotating drum 2 is cooled or heated according to processing conditions during film coating.
- a heater for example, an infrared heater, or the like may be used in addition to cold or hot water.
- the volume of powder particles that can be processed inside the rotary drum 2 is increased.
- the powder and granules contained in the rotating drum 2 move in the rotating direction and the axial direction as the rotating drum 2 rotates. Since the fluid flows along with the movement of the particles, the effect of stirring and mixing the powder and granular layer is high.
- the peripheral wall portion 2a is formed in a polygonal cylindrical shape, and the flow of the granular material in the rotation direction is promoted.
- a raised portion 21b is formed in the center area of the inner surface 21c of the other end portion (first disc plate 21) located on the inclined lower side of the rotating drum 2, and is schematically shown in Figs. 2 and 3.
- the granular material 11 near the other end (the first disk plate 21) lifted forward in the rotational direction with the rotation of the rotating drum 2 flows under its own weight (gravity).
- gravitation When returning to the rear in the rotation direction, it comes into contact with the surface of the protruding portion 21b, and is guided by the surface of the protruding portion 21b to flow upward. Therefore, the stagnation phenomenon of the granular material 11 in the vicinity of the other end (the first disk plate 21) is less likely to occur.
- These fluidity promoting effects (stirring / mixing promoting effect) prevent local excessive wetting and dry spots of the granular material layer 11 and improve the quality of the coating treatment and the product yield.
- the center O of the raised portion 21b is offset from the center of the inner surface 21c (axis A) by a predetermined amount ⁇ .
- the raised portion 21b is not limited to a hemispherical shape, and may have another shape.
- the raised portion 21b may have an elliptical shape.
- the protruding portion 21b has a polygonal shape with a flat top (in the example shown in FIG. 9, a force having a regular hexagonal shape may be a square shape, a triangular shape, etc.). It is good.
- the raised portion 21b shown in these examples an effect of promoting the flow of the granular material in the rotating direction can also be obtained.
- the raised portion 21b is not limited to a hollow shape, and may be a solid shape.
- the number of protrusions is not limited to one, but may be plural. In this case, the plurality of raised portions are preferably arranged with their centers offset by the same distance from the center of the inner surface (axis A).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Glanulating (AREA)
- Coating Apparatus (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
- Seal Device For Vehicle (AREA)
- Glass Compositions (AREA)
- Formation And Processing Of Food Products (AREA)
- Photoreceptors In Electrophotography (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602004029199T DE602004029199D1 (de) | 2004-04-09 | 2004-07-23 | Beschichtungsvorrichtung |
CA2563256A CA2563256C (en) | 2004-04-09 | 2004-07-23 | Coating apparatus |
EP04748081A EP1733801B1 (en) | 2004-04-09 | 2004-07-23 | Coating device |
US11/547,702 US20080271668A1 (en) | 2004-04-09 | 2004-07-23 | Coating Apparatus |
AT04748081T ATE481181T1 (de) | 2004-04-09 | 2004-07-23 | Beschichtungsvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004115672A JP4588349B2 (ja) | 2004-04-09 | 2004-04-09 | コーティング装置 |
JP2004-115672 | 2004-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005099912A1 true WO2005099912A1 (ja) | 2005-10-27 |
Family
ID=35149818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/010873 WO2005099912A1 (ja) | 2004-04-09 | 2004-07-23 | コーティング装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080271668A1 (ja) |
EP (1) | EP1733801B1 (ja) |
JP (1) | JP4588349B2 (ja) |
CN (1) | CN100500300C (ja) |
AT (1) | ATE481181T1 (ja) |
CA (1) | CA2563256C (ja) |
DE (1) | DE602004029199D1 (ja) |
WO (1) | WO2005099912A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5609007B2 (ja) * | 2008-08-28 | 2014-10-22 | 日産自動車株式会社 | 塗装方法 |
JP5324881B2 (ja) * | 2008-10-21 | 2013-10-23 | フロイント産業株式会社 | パンコーティング装置 |
JP5468763B2 (ja) * | 2008-10-21 | 2014-04-09 | フロイント産業株式会社 | パンコーティング装置 |
JP2014004557A (ja) * | 2012-06-26 | 2014-01-16 | Powrex Corp | コーティング装置 |
IN2014CN02601A (ja) | 2011-09-06 | 2015-08-07 | Powrex Kk | |
JP2014000494A (ja) * | 2012-06-15 | 2014-01-09 | Powrex Corp | コーティング装置 |
JP6189114B2 (ja) * | 2013-07-05 | 2017-08-30 | 株式会社パウレック | 粉粒体処理装置 |
CN104399641A (zh) * | 2014-10-16 | 2015-03-11 | 山东常林机械集团股份有限公司 | 一种液压缸体烧结助熔剂涂刷装置及方法 |
JPWO2021060419A1 (ja) * | 2019-09-27 | 2021-04-01 | ||
CN111644311B (zh) * | 2020-06-05 | 2021-03-23 | 深圳市美科泰科技有限公司 | 一种热油加热滚喷设备 |
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US3442691A (en) * | 1968-01-23 | 1969-05-06 | Minnesota Mining & Mfg | Surface treating of articles by rotating and reciprocating the treatment container |
JPS4610878B1 (ja) * | 1969-08-05 | 1971-03-19 | ||
JPS61835U (ja) * | 1984-04-24 | 1986-01-07 | 日立造船株式会社 | 片持ゴムパネルつき二重ドラム造粒機 |
JP2004148292A (ja) * | 2002-09-04 | 2004-05-27 | Pauretsuku:Kk | コーティング装置 |
EP1547695A1 (en) | 2002-09-04 | 2005-06-29 | Kabushiki Kaisha Powrex | Coating device |
Family Cites Families (12)
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US3834347A (en) * | 1971-06-16 | 1974-09-10 | Freunt Ind Co Ltd | Tablet coating apparatus |
DE2249863A1 (de) * | 1972-10-11 | 1974-04-18 | Werner Glatt | Vorrichtung zum dragieren von pillen, tabletten, granulaten und dergleichen |
DE3101468C2 (de) * | 1981-01-19 | 1983-07-07 | Hudelmaier, geb. Otto, Ingrid, 7900 Ulm | "Betonmischer" |
DE3207869A1 (de) * | 1982-03-05 | 1983-09-15 | Boehringer Mannheim Gmbh, 6800 Mannheim | Vorrichtung zum ueberziehen eines dragiergutes |
JPS60244330A (ja) * | 1984-05-18 | 1985-12-04 | Furointo Sangyo Kk | 造粒・乾燥・コ−チング装置 |
JPH0745011B2 (ja) * | 1986-09-09 | 1995-05-17 | フアルマトロニク アクチエンゲゼルシヤフト | 粒子を凝集しかつ/又は該粒子を被覆するための方法と装置 |
DE59201645D1 (de) * | 1991-07-11 | 1995-04-20 | Glatt Gmbh | Verfahren und Einrichtung zum Beschichten von Teilchen. |
JP3314953B2 (ja) * | 1992-05-13 | 2002-08-19 | 株式会社パウレック | 造粒コーティング装置 |
JP3347767B2 (ja) * | 1992-07-10 | 2002-11-20 | フロイント産業株式会社 | パンコーティング装置 |
JPH07232049A (ja) * | 1994-02-25 | 1995-09-05 | Freunt Ind Co Ltd | 遠心転動造粒コーティング装置および粉粒体の遠心転動造粒コーティング方法ならびにその方法を用いた粉粒体の造粒方法とコーティング方法 |
JPH07299348A (ja) * | 1994-05-06 | 1995-11-14 | Freunt Ind Co Ltd | 流動造粒コーティング方法および装置 |
JP3839531B2 (ja) * | 1996-11-05 | 2006-11-01 | フロイント産業株式会社 | 遠心転動造粒コーティング装置およびこれを用いた粉粒体の造粒方法ならびにコーティング方法 |
-
2004
- 2004-04-09 JP JP2004115672A patent/JP4588349B2/ja not_active Expired - Lifetime
- 2004-07-23 CA CA2563256A patent/CA2563256C/en not_active Expired - Fee Related
- 2004-07-23 WO PCT/JP2004/010873 patent/WO2005099912A1/ja active Application Filing
- 2004-07-23 DE DE602004029199T patent/DE602004029199D1/de active Active
- 2004-07-23 AT AT04748081T patent/ATE481181T1/de not_active IP Right Cessation
- 2004-07-23 US US11/547,702 patent/US20080271668A1/en not_active Abandoned
- 2004-07-23 EP EP04748081A patent/EP1733801B1/en not_active Not-in-force
- 2004-07-23 CN CNB2004800416295A patent/CN100500300C/zh not_active Expired - Fee Related
Patent Citations (5)
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US3442691A (en) * | 1968-01-23 | 1969-05-06 | Minnesota Mining & Mfg | Surface treating of articles by rotating and reciprocating the treatment container |
JPS4610878B1 (ja) * | 1969-08-05 | 1971-03-19 | ||
JPS61835U (ja) * | 1984-04-24 | 1986-01-07 | 日立造船株式会社 | 片持ゴムパネルつき二重ドラム造粒機 |
JP2004148292A (ja) * | 2002-09-04 | 2004-05-27 | Pauretsuku:Kk | コーティング装置 |
EP1547695A1 (en) | 2002-09-04 | 2005-06-29 | Kabushiki Kaisha Powrex | Coating device |
Non-Patent Citations (1)
Title |
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See also references of EP1733801A4 |
Also Published As
Publication number | Publication date |
---|---|
CA2563256C (en) | 2012-07-17 |
EP1733801A1 (en) | 2006-12-20 |
JP4588349B2 (ja) | 2010-12-01 |
CN1913978A (zh) | 2007-02-14 |
CA2563256A1 (en) | 2005-10-27 |
EP1733801B1 (en) | 2010-09-15 |
CN100500300C (zh) | 2009-06-17 |
US20080271668A1 (en) | 2008-11-06 |
ATE481181T1 (de) | 2010-10-15 |
JP2005296777A (ja) | 2005-10-27 |
DE602004029199D1 (de) | 2010-10-28 |
EP1733801A4 (en) | 2008-11-05 |
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