JPS60129582A - Exhaust method in continuous fluidized-bed drier - Google Patents
Exhaust method in continuous fluidized-bed drierInfo
- Publication number
- JPS60129582A JPS60129582A JP23760483A JP23760483A JPS60129582A JP S60129582 A JPS60129582 A JP S60129582A JP 23760483 A JP23760483 A JP 23760483A JP 23760483 A JP23760483 A JP 23760483A JP S60129582 A JPS60129582 A JP S60129582A
- Authority
- JP
- Japan
- Prior art keywords
- continuous fluidized
- fluidized bed
- exhaust
- exhaust method
- bed drier
- 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.)
- Pending
Links
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
この発明は、例えば顆粒状の医薬品等の連続流動乾燥装
置における排気方法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the evacuation method in a continuous fluidized fluid drying apparatus for, for example, granular pharmaceutical products.
顆粒状の医薬品を製造する方法の一例として−例えば製
薬原料、薬効エキスおよび結合剤に水を加えて混練し、
その混線物を造粒機に供給して円柱状の造粒原料を形成
し、この造粒原料を直接、又は整粒儲を介在して連続流
動層乾燥機により乾燥し成品として取出している。As an example of a method for manufacturing granular pharmaceuticals - for example, adding water to pharmaceutical raw materials, medicinal extracts and binders and kneading them;
The mixed material is fed to a granulator to form a cylindrical granulated raw material, and this granulated raw material is dried in a continuous fluidized bed dryer directly or through a granulator, and then taken out as a finished product.
ところで上記連続流動層乾燥機内の被乾燥原料には顆粒
状のもののみならず粉状のものも混在し粉状物の一部は
排気と共に排出されるのでこれをサイクロンで捕□集し
還元している。By the way, the raw materials to be dried in the above-mentioned continuous fluidized bed dryer include not only granular materials but also powdery materials, and some of the powdery materials are discharged with the exhaust gas, so this is collected by a cyclone and reduced. ing.
ところが連続流動層乾燥装置で乾燥するもの、特に医薬
品は一種を量産することもあるが、次々□ と品種を変
えて少量乾燥する場合もあり一品種を変える場合はサイ
クロン並びにサイクロンに至るダクト内に付属残留して
いる粉状物もきれいに取出す必要があって、品種を変更
した際の上記操作、は著しく煩雑である。However, products that are dried using a continuous fluidized bed dryer, especially pharmaceutical products, are sometimes mass-produced, but there are also cases where small quantities are dried by changing the product one after the other, and when changing one product, the cyclone and the inside of the duct leading to the cyclone are used. It is also necessary to cleanly remove the powdery substances remaining in the attachment, making the above operation extremely complicated when changing the product type.
この発明は連続流動層乾燥装置における上記問題点を解
決したもので、その目的とするところは連続流動層乾燥
機内で排気口に至る際に排気と共に流出する粉状物を完
全に捕捉し、サイクロン等の捕集用付属装置を排除する
にある。This invention solves the above-mentioned problems in continuous fluidized bed dryers.The purpose of this invention is to completely capture the powder that flows out with the exhaust air when reaching the exhaust port in the continuous fluidized bed dryer, and to It is necessary to eliminate collection attachments such as
この発明の詳細を添付図面に示す実施例に基いて以下に
説明する。The details of this invention will be explained below based on embodiments shown in the accompanying drawings.
第１図において１は横型連続流動層乾燥機であり、２は
被乾燥原料供給部、３はロータリーバルブ４をそなえる
乾燥成品取出部である。５は原料供給用パドルスクリュ
ーフィーダーである。In FIG. 1, 1 is a horizontal continuous fluidized bed dryer, 2 is a drying material supply section, and 3 is a dry product take-out section equipped with a rotary valve 4. 5 is a paddle screw feeder for supplying raw materials.
６は乾燥機の下部に接続された熱風供給パイプでありこ
のパイプには吸気フィルター７、送風機８、スチームヒ
ーター９が接続されている。A hot air supply pipe 6 is connected to the lower part of the dryer, and an intake filter 7, a blower 8, and a steam heater 9 are connected to this pipe.
乾燥機の上部には排気パイプ１０が接続されているがこ
のパイプは、乾燥機内でバッグフィルター１１の排気部
１２に接続されている。１３は排風機である。又１４は
湿潤材料の堆積を防止するアジテータ−を示す。An exhaust pipe 10 is connected to the top of the dryer, and this pipe is connected to an exhaust part 12 of a bag filter 11 within the dryer. 13 is an exhaust fan. 14 also indicates an agitator which prevents the accumulation of wet material.
バッグフィルター１１は第２図に示すように複数個の扁
平袋体１５からなり、袋は織布とし内部に保型用金網１
６をそなえている。The bag filter 11 is made up of a plurality of flat bags 15 as shown in FIG.
It has 6.
バックフィルター１１の運転は電子式コントローラーが
制御していて、設定された時間毎に数秒間宛１枚１枚の
袋体の表面に付着した微粉等の粉状物を払い落す。粉状
物払い落しは圧縮空気の逆噴射によって袋体に振動を加
えて払い落す。The operation of the back filter 11 is controlled by an electronic controller, and the bag filter 11 is operated for several seconds every set time to brush off powdery substances such as fine powder adhering to the surface of each bag body. Powder particles are removed by applying vibration to the bag body using a reverse jet of compressed air.
この発明は上記したような構成であり、この連続流動層
乾燥装置における乾燥装置本体である連続流動層乾燥機
は、排気口に吸引される微粉等の粉状物を機内でバッグ
フィルターにより捕集（捕捉）し、又バッグフィルター
は一定時毎に圧縮空気を逆噴射し捕集した前記粉状物を
払い落して他の乾燥物と共に成品として取出すようにし
たものであるから、従来の連続流動層乾燥装置における
サイクロンやサイクロンに至るダクトを必要とせず、従
って従来の如き乾燥すべき原料の品種を変更した際のダ
クト内やサイクロン内に付着した粉状物をきれいに集め
て還元する煩雑な作業を必要としないもので、品種の切
換えがきわめて簡単且ける排気中の微粉捕集法の実施例
を示す装置のフローシートであり一部２図はバッグフィ
ルターの一例の一部切欠斜視図である。This invention has the above-described configuration, and the continuous fluidized bed dryer, which is the drying device main body of this continuous fluidized bed dryer, collects powdery substances such as fine powder sucked into the exhaust port using a bag filter inside the machine. (capture), and since the bag filter is designed to back-inject compressed air at regular intervals to blow off the collected powder and take it out as a finished product along with other dry matter, it is different from the conventional continuous flow. There is no need for a cyclone or a duct leading to the cyclone in the layer drying equipment, and therefore the complicated work of neatly collecting and reducing powdery substances that adhere to the inside of the duct or cyclone when the type of raw material to be dried is changed, as was the case in the past. This is a flow sheet of a device showing an example of a method for collecting fine particles in exhaust gas, which does not require the use of air filters and which allows for extremely easy switching of types. .
１・・・横型連続流動層乾燥機、２・・・原料供給部、
３・・・乾燥成品取出部、６・・・熱風供給パイプ、１
０・・・排気パイプ、１１・・・バッグフィルター。1... Horizontal continuous fluidized bed dryer, 2... Raw material supply section,
3...Dried product removal section, 6...Hot air supply pipe, 1
0...Exhaust pipe, 11...Bag filter.
第１図 第２図Figure 1 Figure 2
Claims (1)
に熱風供給口、上部に排気口をそなえる連続流動層乾燥
機内で、前記排気口に吸引される・微粉を、逆噴射可能
のバッグフィルターで捕集し乾燥成品側に還元すること
を特徴とする連続流動層乾燥装置における排気方法。In a continuous fluidized bed dryer, which is equipped with a drying fluid raw material supply port and a dried product takeout port, a hot air supply port on the bottom side, and an exhaust port on the top side, a bag that can be used to back-inject the fine powder that is sucked into the exhaust port. An exhaust method in a continuous fluidized bed drying apparatus characterized by collecting the air with a filter and reducing it to the dried product side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23760483A JPS60129582A (en) | 1983-12-15 | 1983-12-15 | Exhaust method in continuous fluidized-bed drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23760483A JPS60129582A (en) | 1983-12-15 | 1983-12-15 | Exhaust method in continuous fluidized-bed drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60129582A true JPS60129582A (en) | 1985-07-10 |
Family
ID=17017779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23760483A Pending JPS60129582A (en) | 1983-12-15 | 1983-12-15 | Exhaust method in continuous fluidized-bed drier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286364A (en) * | 2001-03-26 | 2002-10-03 | Tsukasa Kogyo Kk | Powder and glanular material drying device |
-
1983
- 1983-12-15 JP JP23760483A patent/JPS60129582A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286364A (en) * | 2001-03-26 | 2002-10-03 | Tsukasa Kogyo Kk | Powder and glanular material drying device |
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