JPS62114640A - Granulation coating apparatus - Google Patents
Granulation coating apparatusInfo
- Publication number
- JPS62114640A JPS62114640A JP60253085A JP25308585A JPS62114640A JP S62114640 A JPS62114640 A JP S62114640A JP 60253085 A JP60253085 A JP 60253085A JP 25308585 A JP25308585 A JP 25308585A JP S62114640 A JPS62114640 A JP S62114640A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- cylindrical container
- granulation
- coating liquid
- granulation coating
- 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.)
- Granted
Links
Landscapes
- Fodder In General (AREA)
- Formation And Processing Of Food Products (AREA)
- Glanulating (AREA)
Abstract
Description
【発明の詳細な説明】
夜遊分立
本発明は、粉体表面に液剤をコーテングする造粒コーテ
ング装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a granulation coating device for coating the surface of powder with a liquid agent.
丈米技血
米国特許４，０２７．６２４号公報には、造粒する固体
粒子を充填層に貯留し、この充填層の底部から加熱され
た空気を送ることにより、固定粒子を流動層として抵抗
を減じて粒子群として吹きあげ、この吹きあげられた粒
子群に対してコーテング液を圧縮空気により噴霧状に散
布して粒子をコーテングし、その際、噴霧圧により飛散
した固体粒子をフィルタにより外部に流出することな（
空気のみを排出するようにした技術が開示されている。U.S. Patent No. 4,027.624 discloses that solid particles to be granulated are stored in a packed bed, and heated air is sent from the bottom of the packed bed to form a fluidized bed with fixed particles that provide resistance. The blown-up particles are sprayed with a coating liquid using compressed air to coat the particles. At this time, the solid particles scattered by the spray pressure are removed from the outside by a filter. Do not leak to (
A technique has been disclosed in which only air is exhausted.
この種の造粒コーテング装置は、また、初期的には円筒
容器の天井に、底部に金網で覆った篩状の容器を設け、
この容器にコーテング液を必要量充満させ、該コーテン
グ液を前記金網を通して自然落下させ、一方、円筒容器
内に貯留されている固体粒子を、円筒内底部近傍に該底
部に垂直な軸を中心軸として回転するかきまぜ翼を回転
させるとともに該底部に前記かきまぜ翼と隙をもって固
着された固定ピンとの間で粉体の流動せん断混合を行わ
せて対流混合していた。This type of granulation coating equipment also initially included a sieve-like container with the bottom covered with a wire mesh on the ceiling of the cylindrical container.
This container is filled with a required amount of coating liquid, and the coating liquid is allowed to fall naturally through the wire mesh, while the solid particles stored in the cylindrical container are placed near the bottom of the cylinder with the axis perpendicular to the bottom as the center axis. At the same time, a rotating stirring blade was rotated, and the powder was mixed by fluid shear between the stirring blade and a fixed pin fixed to the bottom with a gap, resulting in convective mixing.
７′シよ゛と るロ 占
上記米国特許第４，０２７，６２４号公報の技術は、固
体粒子が多少温度をもち、これを乾燥することを兼ねて
いるものであり、かつ熱風を充填層に貯留される粉体に
吹き付け、流動層を形成した粒子群にコーテング液を圧
縮空気によりスプレーするものであるため、固体粒子の
粒子群が容器内に飛散し、上層部にフィルタ群を配設し
、このフィルタ群を介して空気を吸引して排気したとし
ても、粒子に対してのコーテング膜は必ずしも一様とは
ならず、固体粒子が凝集して粒子の大きさ、即ち粒度分
布が広くなり、且つ、粉体の飛散のため、有効にコーテ
ングされる固体粒子の割合が低くなり、その分コーテン
グされる固体粒子の割合が低下し、完全にコーテングさ
れるべき固体粒子とコーテング液との比を１００％とす
ると１０３％以上にも達し、収量比が低く、高価なコー
テング液の場合は、その分コストが上昇し、収益の面で
大きい損失を受ける欠点がある。また、後者の例ではコ
ーテング液の落下量が液の粘度の影響を受けて一様な滴
下が不能となり、更には、篩状容器内の液体量が少なく
なると金網上の液圧が小さくなって粘性に抗して流下す
ることが不可能となり、液滴が凝縮し大粒となり、これ
が固定粉体に落下するため、コーテング粒子の大きさに
大きなバラツキが生じ、良品質の造粒コーテングができ
ない。更に、従来装置においては、結果的に、造粒コー
テングの効率が悪いため、造粒時間が長くなり、品質の
みならず生産時間も長くなり造粒コストが品質。7' The technology of the above-mentioned U.S. Pat. The coating liquid is sprayed onto the powder stored in the container, and the coating liquid is sprayed onto the particles that form a fluidized bed using compressed air, so the solid particles are scattered inside the container, and a filter group is installed in the upper layer. However, even if air is sucked in and exhausted through this filter group, the coating film on the particles is not necessarily uniform, and the solid particles aggregate and the particle size, that is, the particle size distribution, becomes wide. In addition, due to powder scattering, the proportion of solid particles that are effectively coated decreases, and the proportion of solid particles that are coated decreases accordingly, and the ratio of solid particles that should be completely coated and the coating liquid decreases. If the ratio is 100%, it reaches 103% or more, and the yield ratio is low. In the case of an expensive coating liquid, the cost increases accordingly, resulting in a large loss in terms of profits. In addition, in the latter example, the amount of coating liquid falling is affected by the viscosity of the liquid, making it impossible to drip uniformly, and furthermore, when the amount of liquid in the sieve-shaped container decreases, the liquid pressure on the wire mesh decreases. It becomes impossible to flow down against the viscosity, and the droplets condense and become large particles, which fall onto the fixed powder, resulting in large variations in the size of the coating particles, making it impossible to form a high-quality granulated coating. Furthermore, in conventional equipment, as a result, the efficiency of granulation coating is poor, resulting in a longer granulation time, which not only increases the quality but also increases the production time and increases the granulation cost.
工数とも不充分であるという問題点があった。There was a problem that the number of man-hours was insufficient.
、１ ル゛のための−
上記従来の造粒コーテング装置は流動層を利用したり、
自然落下を利用したものであるが、本発明においてはコ
ーテング液の混入条件が問題であることに着目し、固体
粒子に対してコーテング液を連続した糸状の連続流をか
きまぜ翼上方周辺に複数個配設し、固形粉体に対してほ
ぼ一様な割合で散布することにより、均一でしかも収量
もよく、早急に造粒コーテングを行わしめるようにした
ものである。, 1 - The above conventional granulation coating equipment utilizes a fluidized bed,
This method utilizes natural falling, but in the present invention, we focused on the problem of the mixing conditions of the coating liquid, and created a continuous thread-like flow of the coating liquid to stir the solid particles. By dispersing the powder at a substantially uniform rate over the solid powder, it is possible to achieve uniformity, good yield, and quick granulation coating.
去見狙
第１図は、本発明になる造粒コーテング装置の概要図を
示す図で、図中、１は円筒容器、２はかきまぜ翼、３は
固定フィン、４は固体粒子（粉体）５はモータ、６はか
きまぜ翼軸、７は円筒容器台。Figure 1 shows a schematic diagram of the granulation coating device according to the present invention, in which 1 is a cylindrical container, 2 is a stirring blade, 3 is a fixed fin, and 4 is a solid particle (powder). 5 is a motor, 6 is a stirring blade shaft, and 7 is a cylindrical container stand.
８は円筒台、９は床、１０はスプレーノズル、 １１は
コーテング液貯液タンク、１２はポンプ、１３は流量計
、１４は定量計、１５は３方パルプ、１６は排気装置、
１７はフランジ、１８はコーテング液供給管、１９は造
粒コーテング排出口で、円筒容器１内に固体粒子即ち粉
体４を投入し、その底部においてかきまぜ翼２がモータ
５のがきまぜ翼軸６により回転し、円筒容器１内底部に
配設される固定フィン３との間でせん断混合を行い自ら
対流混合を行う。即ち、固体粒子４を図示Ａの方向に混
合する。スプレーノズル１ｏは円筒容器１の天井に一様
に配置され、コーテング貯蔵タンク１１内に貯蔵されて
いるコーテング液がポンプ１２により圧送され、該コー
テング液がスプレーノズルｌＯより固定粒子４上に散布
される。8 is a cylindrical stand, 9 is a floor, 10 is a spray nozzle, 11 is a coating liquid storage tank, 12 is a pump, 13 is a flow meter, 14 is a quantitative meter, 15 is a three-way pulp, 16 is an exhaust device,
17 is a flange, 18 is a coating liquid supply pipe, and 19 is a granulated coating discharge port. Solid particles, that is, powder 4 are introduced into the cylindrical container 1, and at the bottom of the container, the stirring blade 2 is connected to the stirring blade shaft of the motor 5. 6, and performs shear mixing with the fixed fins 3 disposed at the inner bottom of the cylindrical container 1, thereby performing convective mixing by itself. That is, the solid particles 4 are mixed in the direction of A in the figure. The spray nozzles 1o are uniformly arranged on the ceiling of the cylindrical container 1, and the coating liquid stored in the coating storage tank 11 is pumped by the pump 12, and the coating liquid is sprayed onto the fixed particles 4 from the spray nozzles 1O. Ru.
第２図は、前記スプレーノズル１ｏの一例を示す図で、
該スプレーノズル１ｏにはコーテング液が給入される給
入口１０２と、該給入口１０２に対向した面が球面１０
４である容器にて構成され、該球面には該球面１０４と
垂直で容器内側に向かって拡がる噴出口１０３を有し、
この噴出口１゜３が球面１０４に対して同心的に配列さ
れている。FIG. 2 is a diagram showing an example of the spray nozzle 1o,
The spray nozzle 1o has an inlet 102 through which the coating liquid is supplied, and a surface facing the inlet 102 is a spherical surface 10.
4, the spherical surface has a spout 103 that is perpendicular to the spherical surface 104 and expands toward the inside of the container,
The jet ports 1.degree. 3 are arranged concentrically with respect to the spherical surface 104.
コーテング液はこの噴出口形状により連続した糸状の流
れ１０１になって粉体に散布される。なお、コーテング
液は流量計１３により計量され、定量計１４によって開
閉制御される３方弁１５を通して供給されるが、定量計
１４は固体粒子４に対して一定割合の流量が設定されて
おり、流量計１３からの流量信号を計数し、計数値が設
定値に達した時に３万バルブ１５が閉じられ、コーテン
グ液の供給が停止される。しかし、弁閉止後は配管１８
内に残留するコーテング液があとだれをもたらし、固体
粒子に大粒となり落下し不均一な混合を行いコーテング
の不良の原因となるので、これを防止するため３方弁１
５を切り換えて圧縮空気を圧送し、配管１８中に残留す
るコーテング液を落下させる。また、多少の飛散する固
定粒子は排気装置１６によりフランジエフを介して排出
される。The coating liquid forms a continuous filamentous flow 101 due to the shape of the spout and is sprayed onto the powder. The coating liquid is metered by a flow meter 13 and supplied through a three-way valve 15 whose opening and closing are controlled by a quantitative meter 14. The flow rate signal from the flow meter 13 is counted, and when the counted value reaches a set value, the 30,000 valve 15 is closed and the supply of the coating liquid is stopped. However, after the valve is closed, the pipe 18
The coating liquid remaining in the interior may drip, become large particles and fall onto the solid particles, causing uneven mixing and causing coating defects.To prevent this, the three-way valve 1 is installed.
5 is switched to feed compressed air under pressure, and the coating liquid remaining in the pipe 18 is dropped. Further, some scattered fixed particles are discharged by the exhaust device 16 through the flangier.
処果
上記本発明によると、均一で粉度分布も狭い造粒コーテ
ングができ、従来９０分も要した造粒時間を１５分に短
縮できた。According to the present invention, a uniform granulation coating with a narrow particle size distribution can be obtained, and the granulation time, which conventionally required 90 minutes, can be shortened to 15 minutes.
第１図は、本発明による造粒コーテング装置の一実施例
を説明するための構成図、第２図は、スプレーノズルの
一例を示す図である。
」 ・円筒容器、２・・かきまぜ翼、３・・固定フィン
。
４・・・固体粒子（粉体）、５・・・モータ、６・・か
きまぜ’１ｌＱｈ、 ７・・・円筒容器台、８・・・円
筒台、９・・・床。
１０・・・スプレーノズル、１１・・・コーテング液貯
液タンク、１２・・・ポンプ、１３・・・流）、（計、
１４・・定量計、１５・・・３カバルブ、１６・・・排
気装置、１７・・・フランジ、１８・・コーテング液供
給管、１９・・・造粒コーテング排出口、１０１・・・
コーテング液。
１０２・・・給入ｎ、１０３・・・噴出口、１０４・・
球面。FIG. 1 is a block diagram for explaining an embodiment of a granulation coating apparatus according to the present invention, and FIG. 2 is a diagram showing an example of a spray nozzle. ” ・Cylindrical container, 2.. Stirring blade, 3.. Fixed fin. 4... Solid particles (powder), 5... Motor, 6... Stir '1lQh, 7... Cylindrical container stand, 8... Cylindrical stand, 9... Floor. DESCRIPTION OF SYMBOLS 10...Spray nozzle, 11...Coating liquid storage tank, 12...Pump, 13...Flow), (total,
14... Quantitative meter, 15... 3 valves, 16... Exhaust device, 17... Flange, 18... Coating liquid supply pipe, 19... Granulation coating outlet, 101...
coating liquid. 102... Input n, 103... Outlet, 104...
Spherical.
Claims (3)
して一定割合の造粒コーテング液を散布し、上記円筒内
で回転するかきまぜ翼と固定フィンとの間で粉体の流動
せん断混合を行わせて対流混合して粉体に造粒コーテン
グする造粒コーテング装置において、前記コーテング液
を円筒容器天井に配設した複数のノズルから連続した糸
状流水にして粉体に散布することを特徴とする造粒コー
テング装置。(1) A predetermined amount of powder is stored in a cylindrical container, a certain proportion of the granulation coating liquid is sprinkled on the powder, and the powder is transferred between the stirring blades rotating in the cylinder and the fixed fins. In a granulation coating device that performs fluid shear mixing and convection mixing to granulate and coat the powder, the coating liquid is made into continuous filamentous water and sprayed onto the powder from a plurality of nozzles arranged on the ceiling of a cylindrical container. A granulation coating device characterized by:
口と該給入口に対向した面が球面である容器にて構成さ
れ、前記球面には該球面と垂直で内に向かって拡がる噴
出口を有し、該噴出口が前記球面に対し同心的に配列穿
孔されたものであることを特徴とする特許請求の範囲第
（１）項に記載の造粒コーテング装置。(2) The nozzle consists of an inlet into which the granulation coating liquid is supplied, and a container whose surface facing the inlet is a spherical surface, and the spherical surface has a jet that is perpendicular to the spherical surface and spreads inward. The granulation coating device according to claim 1, wherein the granulation coating device has an outlet, and the outlet is arranged concentrically with respect to the spherical surface.
量で弁を閉止する定量積算計で積算して前記ノズルに給
液し、所定量での給液閉止信号により、前記ノズルに空
気を圧送し、前記円筒容器へのあとだれをなくすことを
特徴とする特許請求の範囲第（１）項又は第（２）項に
記載の造粒コーテング装置。(3) Integrate the granulated coating liquid using a flow rate signal, integrate it with a meter that closes the valve at a predetermined amount, and supply the liquid to the nozzle. The granulation coating device according to claim 1 or 2, wherein the granulation coating device is configured to force-feed the granulation material and eliminate dripping into the cylindrical container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60253085A JPH0616826B2 (en) | 1985-11-12 | 1985-11-12 | Granulation coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60253085A JPH0616826B2 (en) | 1985-11-12 | 1985-11-12 | Granulation coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62114640A true JPS62114640A (en) | 1987-05-26 |
| JPH0616826B2 JPH0616826B2 (en) | 1994-03-09 |
Family
ID=17246279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60253085A Expired - Lifetime JPH0616826B2 (en) | 1985-11-12 | 1985-11-12 | Granulation coating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616826B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009072679A (en) * | 2007-09-20 | 2009-04-09 | Utsunomiya Univ | Coating method/device and composite particle |
| CN104525045A (en) * | 2014-12-24 | 2015-04-22 | 浙江迦南科技股份有限公司 | Inner and outer double-acting granulating cutter and granulating machine |
| JP2020089343A (en) * | 2018-12-07 | 2020-06-11 | ユニ・チャーム株式会社 | Method of producing pet food |
| CN112741352A (en) * | 2021-01-12 | 2021-05-04 | 徐州众汇福英杰饲料有限公司 | Nutrient element spraying device for duck feed production |
-
1985
- 1985-11-12 JP JP60253085A patent/JPH0616826B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009072679A (en) * | 2007-09-20 | 2009-04-09 | Utsunomiya Univ | Coating method/device and composite particle |
| CN104525045A (en) * | 2014-12-24 | 2015-04-22 | 浙江迦南科技股份有限公司 | Inner and outer double-acting granulating cutter and granulating machine |
| JP2020089343A (en) * | 2018-12-07 | 2020-06-11 | ユニ・チャーム株式会社 | Method of producing pet food |
| CN112741352A (en) * | 2021-01-12 | 2021-05-04 | 徐州众汇福英杰饲料有限公司 | Nutrient element spraying device for duck feed production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0616826B2 (en) | 1994-03-09 |
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