JPH03135401A - Centrifugal film evaporator - Google Patents
Centrifugal film evaporatorInfo
- Publication number
- JPH03135401A JPH03135401A JP27169789A JP27169789A JPH03135401A JP H03135401 A JPH03135401 A JP H03135401A JP 27169789 A JP27169789 A JP 27169789A JP 27169789 A JP27169789 A JP 27169789A JP H03135401 A JPH03135401 A JP H03135401A
- Authority
- JP
- Japan
- Prior art keywords
- film evaporator
- raw material
- shell
- impeller
- thin film
- 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
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000010409 thin film Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は立形の遠心薄膜ｉ＆発器に係り、特に原料入口
部でのフラブシュ蒸発を可能ならしめるのに好適な遠心
薄膜蒸発器の構造に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vertical centrifugal thin film evaporator, and particularly to a structure of a centrifugal thin film evaporator suitable for enabling flash evaporation at the raw material inlet. It is related to.
従来の装置は、特許第６４７５２２号に記載されている
ように、遠心薄膜蒸発器に導入された液は、回転軸に固
着された気液分離装置の外面に設けられた機構によって
、強制的に所定の方向へ押し流し、下側より上昇して来
た蒸気は、該気液分離装置内へ導き通過させた後、Ｗｔ
Ｒ外へ取り出す構造となっていた。In the conventional device, as described in Japanese Patent No. 647522, the liquid introduced into the centrifugal thin film evaporator is forcibly separated by a mechanism provided on the outer surface of the gas-liquid separation device fixed to the rotating shaft. The steam that flows in a predetermined direction and rises from the bottom is guided into the gas-liquid separator and passed through it.
It was designed to be taken out outside R.
上記従来技術は、遠心薄膜蒸発器に供給する被処理原液
を、加圧状態で加熱し、遠心薄膜蒸発器の原料供給口に
設けられた減圧弁を介して供給し、蒸発器内でフラヴシ
Ａ蒸発を行なうことが配慮されておらず、フラッシュ蒸
発時に発生する微少液滴が、気液分離装置の上側まで飛
散し、蒸気流に同伴され、凝縮器系統の閉塞を生じさせ
る不具合があった。In the above-mentioned conventional technology, the stock solution to be treated to be supplied to the centrifugal thin film evaporator is heated under pressure, and is supplied through a pressure reducing valve provided at the raw material supply port of the centrifugal thin film evaporator. No consideration was given to evaporation, and there was a problem in that minute droplets generated during flash evaporation flew to the top of the gas-liquid separation device and were entrained in the vapor flow, causing blockage in the condenser system.
また、フラプシ、後の微少液滴は、比較的多量の揮発物
とポリマーの如き非揮発物から成っているため、蒸気室
で缶壁に付着し、時には、軸封部の狭隙部に入り込み、
軸封装置を破壊する要因となっていた。In addition, since the minute droplets after the flap are composed of a relatively large amount of volatile matter and non-volatile matter such as polymers, they adhere to the can wall in the steam chamber and sometimes enter the narrow gap in the shaft seal. ,
This caused damage to the shaft sealing device.
本発明の目的は、立形遠心薄膜蒸発器の原料入口部で、
フライシュ蒸発させることのできる遠心薄膜蒸発器を提
供することにある。The object of the present invention is to provide a raw material inlet part of a vertical centrifugal thin film evaporator,
An object of the present invention is to provide a centrifugal thin film evaporator capable of evaporating flysch.
上記目的を達成するために、立形の遠心薄膜蒸発器の原
料供給口よりも更に上側まで、回転軸の半径方向に取り
付けられた攪拌翼を延長させて形成し、この攪拌翼の回
転によって生じる下方向への押し下げ力によって、フラ
ッジ、蒸発によつて生じた微少液滴および浄気な、下側
へ押し下げることを可能ならしめたものである。In order to achieve the above objective, stirring blades attached in the radial direction of the rotating shaft are extended above the raw material supply port of the vertical centrifugal thin film evaporator, and the rotation of the stirring blades causes The downward force makes it possible to push down fludge, minute droplets generated by evaporation, and clean air.
加圧下で加熱された被処理液は、遠心薄膜蒸発器入口の
減圧弁を通過後、急激に膨張し揮発物は気化する。その
ため、原料入口部で過大な速度となり、微少液滴と蒸気
の混相となる。蒸発器内では、入口部には、回転軸の半
径方向に取り付けられた攪拌翼が高速回転しているため
、衝突を起こすが、下側への押し下げ力により気液とも
下方向へ戻される。また、缶壁に付着した液も攪拌翼に
より下方へ流されるため、遠心薄膜蒸発器の原料供給部
およびその上部から、上１カバーに至る空間が液滴等の
付着によって房塞することはない。The liquid to be treated, heated under pressure, rapidly expands after passing through a pressure reducing valve at the inlet of the centrifugal thin film evaporator, and volatile substances are vaporized. Therefore, the velocity becomes excessive at the raw material inlet, resulting in a mixed phase of minute droplets and steam. In the evaporator, stirring blades attached to the inlet in the radial direction of the rotating shaft rotate at high speed, causing collisions, but the downward force forces the gas and liquid to return downward. In addition, since the liquid adhering to the can wall is also flowed downward by the stirring blade, the space from the raw material supply section of the centrifugal thin film evaporator and its upper part to the upper 1 cover will not be blocked by adhesion of droplets, etc. .
以下、本発明の一実施例を第１図および！ｌ！２図によ
り説明する。An embodiment of the present invention will be described below with reference to FIG. l! This will be explained using Figure 2.
図において、加圧された原料供給ラインｌより送られた
原料（被処理液）は、予熱器２にて加熱され、減圧弁３
を通って遠心薄膜蒸発器４に導かれる。この遠心薄膜蒸
発器４内部で蒸発が促進され、蒸発した蒸気と濃縮物は
共に下部のセパレートタンク５に導かれ、ここで気液分
離されて、蒸気は蒸気出口６より系外へ、濃縮物は、濃
縮物出ロアより糸外へ取り出される。遠心薄膜蒸発器４
は、′Ｎ２図に示すように、蒸発器本体■とわずかな間
隙を有する攪拌翼！３．これを固着して回転する回転軸
セ、および液膜を加熱するジャケット１４゜等から構成
している。In the figure, the raw material (liquid to be treated) sent from the pressurized raw material supply line 1 is heated in a preheater 2, and is heated by a pressure reducing valve 3.
through which it is led to a centrifugal thin film evaporator 4. Evaporation is promoted inside this centrifugal thin film evaporator 4, and both the evaporated vapor and the concentrate are led to the lower separate tank 5, where they are separated into gas and liquid, and the vapor exits the system through the vapor outlet 6, leaving the concentrate. is taken out of the thread from the concentrate outlet lower. Centrifugal thin film evaporator 4
As shown in Figure 'N2, the stirring blade has a small gap with the evaporator body ■! 3. It consists of a rotating shaft fixedly fixed to rotate, a jacket 14° for heating the liquid film, etc.
原料入口１０より導入された原料（被処理液）は、気液
混相となって過大な速度で流入して鳴るため、回転軸認
および撹拌翼１３に衝突し％原料入口ｌＯよりも上側へ
飛散する。しかし、原料入口ｌＯより上側にも、攪拌翼
ｌが延長されて設置されており、かつ下側へ送り作用を
もっているため、これらの微少液滴は下側へ押し戻され
る。本実施例によれば、原料入口より上側の本体側壁面
および上１１１７への微少液滴の付着を肪く゛ことがで
きる。The raw material (liquid to be treated) introduced from the raw material inlet 10 becomes a gas-liquid mixed phase that flows in at an excessive speed and makes noise, so it collides with the rotating shaft and the stirring blade 13 and is scattered above the raw material inlet IO. do. However, since the stirring blades 1 are extended and installed above the raw material inlet IO and have a downward feeding action, these minute droplets are pushed back downward. According to this embodiment, it is possible to reduce the adhesion of minute droplets to the main body side wall surface and upper part 1117 above the raw material inlet.
本発明によれば１回転により気液を下方向へ送る効果を
もつ攪拌翼を、原料入口より上側まで延長させて形成し
ているので、原料入口部で７ラツシＪＬ蒸発により生じ
る微少液滴および蒸気を下側へ戻すことができるので、
本体上部の缶壁や、上蓋への付着を防（゛ことが可能で
あり、付着性の激しい液のフラヲシ、蒸発が可能である
。According to the present invention, the stirring blades, which have the effect of sending gas and liquid downward in one revolution, are formed by extending above the raw material inlet, so that minute droplets generated by evaporation at the raw material inlet and Steam can be returned to the bottom,
It is possible to prevent adhesion to the can wall at the top of the main body and the top lid, and it is possible to prevent highly adhesive liquid from flashing and evaporating.
第１図は本発明の一実１例の遠心薄膜蒸発器の系統図、
第２図は本発明の遠心薄膜蒸発器の構造を示す縦断面図
、第３図は本発明の攪拌翼の他の実施例を示す部分断面
図である。
４・・・・・・遠心薄！ｌｉ蒸発器、５・・・・・・セ
パレートタンク、６・・・・・・蒸気出口、７・・・・
・・濃縮物出口、１０・・・・・・原料入口、■・・・
・・・蒸発器本体、セ・・・・・・回転軸、■・・−・
・攪拌翼、１４・・・・・・ジャケット、１６・・・・
・・軸封狭隙部、１７・・・・・・上蓋、川・・・・・
・気液出口、Ｗ・・・・・・軸封装１７図
７−−−−シ釆廂物出口FIG. 1 is a system diagram of a centrifugal thin film evaporator as an example of the present invention.
FIG. 2 is a longitudinal sectional view showing the structure of the centrifugal thin film evaporator of the invention, and FIG. 3 is a partial sectional view showing another embodiment of the stirring blade of the invention. 4... Centrifugal thin! Li evaporator, 5... Separate tank, 6... Steam outlet, 7...
... Concentrate outlet, 10... Raw material inlet, ■...
...Evaporator body, center...rotating shaft, ■...-
- Stirring blade, 14... Jacket, 16...
...Shaft sealing narrow gap, 17...Top lid, river...
・Gas/liquid outlet, W...Shaft sealing 17 Figure 7-----Shouting outlet
Claims (1)
翼を有し、胴体内壁と攪拌翼先端とにわずかな間隙を有
する立形の遠心薄膜蒸発器において、 前記撹拌翼を胴体側面に設けられた原料供給口よりも上
部まで延長させて形成し、該攪拌翼で供給された被処理
液および蒸気を胴体下方へ押し下げるように構成したこ
とを特徴とする遠心薄膜蒸発器。 ２、前記攪拌翼の構成は、回転軸方向に対し傾斜あるい
はねじりを与え、回転により生じる遠心力を利用できる
形状としたことを特徴とする請求項第１項記載の遠心薄
膜蒸発装置。[Scope of Claims] 1. In a vertical centrifugal thin film evaporator having stirring blades attached in the radial direction of the rotating shaft inside the body, and having a small gap between the inner wall of the body and the tip of the stirring blade, the stirring A centrifugal thin film evaporator characterized in that a wing is formed by extending above a raw material supply port provided on the side of the fuselage, and is configured to push down the liquid to be treated and steam supplied by the stirring wing to the lower part of the fuselage. vessel. 2. The centrifugal thin film evaporator according to claim 1, wherein the stirring blade has a configuration that is inclined or twisted with respect to the rotational axis direction so that centrifugal force generated by rotation can be utilized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27169789A JPH03135401A (en) | 1989-10-20 | 1989-10-20 | Centrifugal film evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27169789A JPH03135401A (en) | 1989-10-20 | 1989-10-20 | Centrifugal film evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03135401A true JPH03135401A (en) | 1991-06-10 |
Family
ID=17503585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27169789A Pending JPH03135401A (en) | 1989-10-20 | 1989-10-20 | Centrifugal film evaporator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03135401A (en) |
-
1989
- 1989-10-20 JP JP27169789A patent/JPH03135401A/en active Pending
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