JP4571440B2 - Intermittent spray type tablet coating equipment - Google Patents

Intermittent spray type tablet coating equipment Download PDF

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Publication number
JP4571440B2
JP4571440B2 JP2004168285A JP2004168285A JP4571440B2 JP 4571440 B2 JP4571440 B2 JP 4571440B2 JP 2004168285 A JP2004168285 A JP 2004168285A JP 2004168285 A JP2004168285 A JP 2004168285A JP 4571440 B2 JP4571440 B2 JP 4571440B2
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coating
coating pan
liquid
pan
path
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JP2005342678A (en
Inventor
栄一 山本
哲生 遠島
康裕 大平
数也 椎名
哲朗 塩田
栄子 鈴木
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SSP Co Ltd
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SSP Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/006Coating of the granules without description of the process or the device by which the granules are obtained

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  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
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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、コーティングパンへの入路部とコーティングパンからの出路部から成るコーティング液循環路を配設し、かつ当該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当該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により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、前記コーティング液循環路に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 composed of an inlet path to the coating pan and an outlet path from the coating pan between the coating pan and the liquid supply tank, and the coating pan. allowed to circulate coating solution without going through the coating pan during non spray by intervening the installed non-return valve Detchi part from intervening the installed three-way valve and the coating pan on the entrance road of the bypass passage, said coating The above-mentioned problems are solved by disposing in the liquid circulation path .

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 is no limitation on the specific means for opening and closing the bypass path, that is, closing the bypass path during spraying and opening the bypass path 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 a 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. 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 to close 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 Schematic structure explanatory drawing of this invention apparatus. 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 non-spray in this invention apparatus. 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
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 (1)

コーティングパンと給液タンクとの間に、コーティングパンへの入路部とコーティングパンからの出路部から成るコーティング液循環路を配設し、かつ当該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当該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により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、前記コーティング液循環路に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。 Between the coating pan and the liquid supply tank, a coating liquid circulation path consisting of an entry path to the coating pan and an exit path from the coating pan is disposed, and is interposed in the entry path to the coating pan. A bypass path that circulates the coating liquid without going through the coating pan during non-spraying by a check valve interposed between the three-way valve and the outlet from the coating pan is arranged in the coating liquid circulation path. An intermittent spray type tablet coating device.
JP2004168285A 2004-06-07 2004-06-07 Intermittent spray type tablet coating equipment Expired - Lifetime JP4571440B2 (en)

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JP2004168285A JP4571440B2 (en) 2004-06-07 2004-06-07 Intermittent spray type tablet coating equipment

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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

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