JP2005342678A - Intermittent spray type tablet coating apparatus - Google Patents

Intermittent spray type tablet coating apparatus Download PDF

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Publication number
JP2005342678A
JP2005342678A JP2004168285A JP2004168285A JP2005342678A JP 2005342678 A JP2005342678 A JP 2005342678A JP 2004168285 A JP2004168285 A JP 2004168285A JP 2004168285 A JP2004168285 A JP 2004168285A JP 2005342678 A JP2005342678 A JP 2005342678A
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coating
liquid
spray type
pan
type tablet
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JP2004168285A
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JP4571440B2 (en
Inventor
Eiichi Yamamoto
栄一 山本
Tetsuo Tojima
哲生 遠島
Yasuhiro Ohira
康裕 大平
Kazuya Shiina
数也 椎名
Tetsuro Shioda
哲朗 塩田
Eiko Suzuki
栄子 鈴木
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SSP Co Ltd
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SSP Co Ltd
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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
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intermittent spray type tablet coating apparatus, capable of preventing a leak of a coating liquid and coating a tablet in a good yield. <P>SOLUTION: The intermittent spray type tablet coating apparatus has a coating-liquid circulating pathway arranged between a coating pan and a liquid supplying tank and also a bypass pathway arranged to circulate the coating liquid without passing through the coating pan in non-spraying. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、間欠スプレー型錠剤コーティング装置に関する。   The present invention relates to an intermittent spray type tablet coating apparatus.

間欠スプレー型錠剤コーティング装置は、スプレー・ポーズ・乾燥を予め設定された回数繰り返すことによりコーティング液を錠剤にコーティングする装置である。   The intermittent spray type tablet coating apparatus is an apparatus for coating a tablet with a coating liquid by repeating spraying, pausing, and drying a preset number of times.

従来、斯かる間欠スプレー型錠剤コーティング装置は、一般に図４に示される如く、コーティングパン１０と給液タンク２０との間にコーティング液循環路３０を配設して構成されていた。   Conventionally, such an intermittent spray type tablet coating apparatus is generally configured by providing a coating liquid circulation path 30 between a coating pan 10 and a liquid supply tank 20 as shown in FIG.

而して、斯かる従来の間欠スプレー型錠剤コーティング装置は、スプレー時はもとよりポーズ及び乾燥時においてもコーティング液を循環路３０中で循環せしめるものであった。これは、非スプレー時にコーティング液の循環を停止すると、コーティング液が通常分散液であるため、コーティング液に分離が生じ、配管内で液圧が上昇したり、液量が変化してトラブルの原因となるからである。   Thus, such a conventional intermittent spray type tablet coating apparatus circulates the coating liquid in the circulation path 30 not only during spraying but also during pause and drying. This is because when the circulation of the coating liquid is stopped during non-spraying, the coating liquid is usually a dispersion liquid, so that the coating liquid is separated and the liquid pressure rises in the pipe or the liquid volume changes, causing the trouble. Because it becomes.

その結果、コーティング液がコーティングパン１０内を常時流動している状態となるため、スプレーガンの劣化や循環路３０を構成するチューブの接続部の破損等によりコーティングパン１０内にコーティング液が漏出する機会が高まり、往々にして不良品（錠剤）が発生してしまうと云う問題があった。   As a result, since the coating liquid is constantly flowing in the coating pan 10, the coating liquid leaks into the coating pan 10 due to deterioration of the spray gun, breakage of the connection portion of the tube constituting the circulation path 30, or the like. There was a problem that opportunities increased and often defective products (tablets) were generated.

本発明は、上記の如き従来の問題に鑑みてなされたものであり、コーティング液の漏出を防止し、歩留り良く錠剤へコーティング処理することができる間欠スプレー型錠剤コーティング装置を提供することを課題としている。   The present invention has been made in view of the conventional problems as described above, and it is an object of the present invention to provide an intermittent spray type tablet coating apparatus capable of preventing leakage of a coating liquid and coating a tablet with high yield. Yes.

本発明間欠スプレー型錠剤コーティング装置は、コーティングパンと給液タンクとの間にコーティング液循環路を配設し、かつ当該コーティング液循環路に、非スプレー時にコーティングパンを経由することなくコーティング液を循環せしめるバイパス路を配設することによって上記課題を解決したものである。   The intermittent spray type tablet coating apparatus of the present invention is provided with a coating liquid circulation path between a coating pan and a liquid supply tank, and the coating liquid circulation path is supplied to the coating liquid circulation path without passing through the coating pan when not sprayed. The above-described problem is solved by providing a bypass path that circulates.

本発明によれば、スプレー時には通常のコーティング液循環路により、コーティング液がコーティングパン内に導入されるものの、非スプレー時、すなわちポーズ及び乾燥時には、コーティング液はコーティングパンを経由しないバイパス路により循環するため、コーティングパン内にコーティング液が導入されることはない。従って、従来の如きコーティング液のコーティングパン内への漏出の恐れは少なく、自ずと歩留りの良い錠剤へのコーティング処理が可能となる。   According to the present invention, the coating liquid is introduced into the coating pan by a normal coating liquid circulation path at the time of spraying, but the coating liquid is circulated by a bypass path not via the coating pan at the time of non-spraying, that is, at the time of pause and drying. Therefore, the coating liquid is not introduced into the coating pan. Therefore, there is little risk of leakage of the coating liquid into the coating pan as in the prior art, and it becomes possible to perform coating processing on tablets with a good yield.

本発明において、バイパス路の開閉、すなわちスプレー時にバイパス路を閉止し、非スプレー時にバイパス路を開通する具体的手段はその如何を問わないが、コーティングパンへの入路部に介在設置せしめた三方弁と、コーティングパンからの出路部に介在設置せしめた逆止弁の作動により行なうのが簡便である。   In the present invention, there are no specific means for opening and closing the bypass passage, that is, closing the bypass passage during spraying and opening the bypass passage during non-spraying. It is easy to carry out by the operation of a valve and a check valve interposed between the coating pan and the exit portion.

以下一実施例を示す図面と共に本発明を更に説明する。   The present invention will be further described below with reference to the drawings showing an embodiment.

図１は本発明間欠スプレー型錠剤コーティング装置の概略構成説明図である。
該図１において、１０はコーティングパン、また２０は給液タンクで、当該コーティングパン１０と給液タンク２０との間にはコーティング液循環路３０が配設されている。 FIG. 1 is an explanatory diagram of the schematic configuration of the intermittent spray type tablet coating apparatus of the present invention.
In FIG. 1, 10 is a coating pan, and 20 is a liquid supply tank, and a coating liquid circulation path 30 is disposed between the coating pan 10 and the liquid supply tank 20.

コーティング液循環路３０は、コーティングパン１０への入路部３０ａとコーティングパン１０からの出路部３０ｂから成り、コーティングパン１０外の入路部３０ａと出路部３０ｂ間に、非スプレー時にコーティングパン１０を経由することなくコーティング液を循環せしめるバイパス路４０が配設されている。   The coating liquid circulation path 30 includes an entrance part 30a to the coating pan 10 and an exit part 30b from the coating pan 10, and the coating pan 10 is not sprayed between the entrance part 30a and the exit part 30b outside the coating pan 10. A bypass path 40 for circulating the coating liquid without passing through is disposed.

バイパス路４０は、図２及び図３に示す如く、入路部３０ａ側に介在設置された三方弁４１と出路部３０ｂ側に介在設置された給液タンク２０方向のみに開通している逆止弁４２の作動により、スプレー時に開通し、非スプレー時には閉止されるようになっている。尚、三方弁４１の作動、すなわちバイパス路４０の開閉は、コンピュータ（図示せず）によってコーティングパン１０の非スプレー時と、スプレー時に連動してそれぞれ開通・閉止するように制御されている。   As shown in FIGS. 2 and 3, the bypass passage 40 is open only in the direction of the three-way valve 41 interposed on the inlet portion 30a side and the liquid supply tank 20 interposed on the outlet portion 30b side. By the operation of the valve 42, the valve 42 is opened during spraying and closed during non-spraying. The operation of the three-way valve 41, that is, the opening and closing of the bypass passage 40, is controlled by a computer (not shown) so as to open and close in conjunction with the non-spraying and the spraying of the coating pan 10, respectively.

尚、３１は液送ポンプ、３２は流量計で、それぞれ三方弁４１より給液タンク２０側の入路部３０ａに設置されている。   In addition, 31 is a liquid feed pump, 32 is a flowmeter, and is each installed in the entrance part 30a by the side of the liquid supply tank 20 from the three-way valve 41.

次に、斯かる本発明装置におけるコーティング液の流れを説明する。
まず、図２に示す如く、コーティングパン１０内のスプレー時においては、三方弁４１がコーティングパン１０方向に開通してバイパス路４０を閉止せしめているので、コーティング液は給液タンク２０→入路部３０ａ→三方弁４１→コーティングパン１０、出路部３０ｂ→逆止弁４２→出路部３０ｂ→給液タンク２０と循環する。 Next, the flow of the coating liquid in the apparatus of the present invention will be described.
First, as shown in FIG. 2, when spraying in the coating pan 10, the three-way valve 41 opens in the direction of the coating pan 10 and closes the bypass path 40, so that the coating liquid is supplied from the liquid supply tank 20 to the inlet path. It circulates with part 30a-> three-way valve 41-> coating pan 10, outlet part 30b-> check valve 42-> outlet part 30b-> supply tank 20.

他方、コーティングパン１０のポーズ及び乾燥時、すなわち非スプレー時においては、図３に示す如く、三方弁４１がコーティングパン１０方向を閉止してバイパス路４０を開通せしめていると共に、逆止弁４２の作動により出路部３０においてコーティングパン１０方向への流れが閉止されているので、コーティング液は給液タンク２０→入路部３０ａ→三方弁４１→バイパス路４０→出路部３０ｂ→給液タンク２０と循環する。   On the other hand, when the coating pan 10 is paused and dried, that is, when it is not sprayed, the three-way valve 41 closes the coating pan 10 direction and opens the bypass passage 40 as shown in FIG. Since the flow in the direction of the coating pan 10 is closed in the outlet 30 by the operation, the coating liquid is supplied from the liquid supply tank 20 → the inlet 30a → the three-way valve 41 → the bypass 40 → the outlet 30b → the liquid supply tank 20. And circulate.

本発明装置の概略構成説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 本発明装置におけるスプレー時のコーティング液の流れを示す模式説明図。The schematic explanatory drawing which shows the flow of the coating liquid at the time of the spray in this invention apparatus. 本発明装置における非スプレー時のコーティング液の流れを示す模式説明図。The schematic explanatory drawing which shows the flow of the coating liquid at the time of the non-spray in an apparatus of the present invention. 従来装置の概略構成説明図。Schematic structure explanatory drawing of a conventional apparatus.

符号の説明Explanation of symbols

１０：コーティングパン
２０：給液タンク
３０：コーティング液循環路
３０ａ：入路部
３０ｂ：出路部
４０：バイパス路
４１：三方弁
４２：逆止弁 DESCRIPTION OF SYMBOLS 10: Coating pan 20: Liquid supply tank 30: Coating liquid circulation path 30a: Inlet part 30b: Outlet part 40: Bypass path 41: Three-way valve 42: Check valve

Claims (2)

コーティングパンと給液タンクとの間にコーティング液循環路を配設し、かつ当該コーティング液循環路に、非スプレー時にコーティングパンを経由することなくコーティング液を循環せしめるバイパス路を配設したことを特徴とする間欠スプレー型錠剤コーティング装置。   A coating liquid circulation path is provided between the coating pan and the liquid supply tank, and a bypass path is provided in the coating liquid circulation path for circulating the coating liquid without going through the coating pan when non-spraying. An intermittent spray type tablet coating apparatus. バイパス路が、コーティングパンへの入路部に介在設置された三方弁と、コーティングパンからの出路部に介在設置された逆止弁の作動により開閉されるものであることを特徴とする請求項１記載の間欠スプレー型錠剤コーティング装置。   The bypass path is opened and closed by the operation of a three-way valve interposed and installed at the entrance to the coating pan and a check valve interposed and installed at the exit from the coating pan. 2. The intermittent spray type tablet coating apparatus according to 1.
JP2004168285A 2004-06-07 2004-06-07 Intermittent spray type tablet coating equipment Active JP4571440B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3639916A1 (en) * 2018-10-18 2020-04-22 Yara International ASA Method and fluidized bed granulator for the production of granules from a slurry

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62160124A (en) * 1986-01-10 1987-07-16 Toyo Jozo Co Ltd Uniform spraying device used in vacuum granulating/ coating apparatus
JPS63119870A (en) * 1986-11-10 1988-05-24 Nordson Kk Method and device for airless discharge of dispersion type liquid
JPH01278727A (en) * 1988-04-30 1989-11-09 Matsushita Electron Corp Resist coating device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62160124A (en) * 1986-01-10 1987-07-16 Toyo Jozo Co Ltd Uniform spraying device used in vacuum granulating/ coating apparatus
JPS63119870A (en) * 1986-11-10 1988-05-24 Nordson Kk Method and device for airless discharge of dispersion type liquid
JPH01278727A (en) * 1988-04-30 1989-11-09 Matsushita Electron Corp Resist coating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3639916A1 (en) * 2018-10-18 2020-04-22 Yara International ASA Method and fluidized bed granulator for the production of granules from a slurry
WO2020079204A1 (en) 2018-10-18 2020-04-23 Yara International Asa Method and fluidized bed granulator for the production of granules from a slurry
CN112839732A (en) * 2018-10-18 2021-05-25 亚拉国际有限公司 Method for producing granules from a slurry and fluid bed granulator

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