JPS5824306A - Continuous production of external pressure type tubular membrane - Google Patents
Continuous production of external pressure type tubular membraneInfo
- Publication number
- JPS5824306A JPS5824306A JP57120659A JP12065982A JPS5824306A JP S5824306 A JPS5824306 A JP S5824306A JP 57120659 A JP57120659 A JP 57120659A JP 12065982 A JP12065982 A JP 12065982A JP S5824306 A JPS5824306 A JP S5824306A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- membrane support
- substrate
- support
- holder
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 63
- 238000010924 continuous production Methods 0.000 title 1
- 238000005266 casting Methods 0.000 claims abstract description 24
- 239000005457 ice water Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005273 aeration Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000758 substrate Substances 0.000 abstract 10
- 239000007788 liquid Substances 0.000 description 20
- 239000010408 film Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は逆浸透装置および限外濾過装置に使用される
外圧式管状膜の製造方法に関する。 管状支持体の外表
面に薄い膜を形成させる場合、支持体を垂直に保持し液
状膜原料たるキャスト液を塗布したのち曝気、ゲル化の
一連工程を定速度で通過させることが好ましい。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an external pressure type tubular membrane used in reverse osmosis devices and ultrafiltration devices. When forming a thin film on the outer surface of a tubular support, it is preferable to hold the support vertically, apply a casting liquid as a liquid film raw material, and then pass through a series of steps of aeration and gelation at a constant rate.
従来の製膜方法は、特公昭４９−４８０７４号公報に示
されているように、ワイヤーにより膜支持体を懸吊し、
この支持体を一本づつ製膜するバッチ方式であり、その
概念図は第１図のとおりである。 １本の膜支持体１は
糸２により懸垂され糸２は電動機３の軸に巻かれている
ため電動機３の作動により膜支持体１は降下し、ダイ４
を通過してキャスト液が塗布され、グイ４通過後曝気さ
れ、更に氷水槽５に入りゲル化される。 従来方式は装
置の構成が簡易であり、また固定されたダイの中心を通
過する際、膜支持体の振れが自由であるため高粘度のキ
ャスト液によりダイ中で定芯され、膜厚が一定となる利
点がある。 しかるに従来方法にはつぎのような実用上
の欠点がある。In the conventional film forming method, as shown in Japanese Patent Publication No. 49-48074, a membrane support is suspended by a wire,
This is a batch method in which the support is formed into a film one by one, and its conceptual diagram is shown in FIG. One membrane support 1 is suspended by a thread 2, and the thread 2 is wound around the shaft of an electric motor 3, so the membrane support 1 is lowered by the operation of the electric motor 3, and the die 4
The casting liquid is applied thereto, and after passing through the gooey 4, it is aerated and further enters the ice water bath 5 to be gelled. The conventional method has a simple device configuration, and because the membrane support is free to swing when passing through the center of a fixed die, the high viscosity casting liquid maintains the center in the die, resulting in a constant film thickness. There is an advantage that However, the conventional method has the following practical drawbacks.
すなわち支持体にキャスト液を連続して塗布させようと
する場合、相互に連結した極めて長い支持体を糸で懸垂
する必要が生じ、装置は高さ方向に無制限に長く伸ばさ
なければならなく、実用上全く不可能である。 また、
従来方法のままバッチ方式で生産させる場合、１本の支
持体の製膜達成後、糸の付は替の作業、ダイの清掃等の
手作業を要し、このため１時間当り数本程度の生産量に
しかならず、極めて非能率であると同時にダイの清掃等
の不確実性および個人差のための膜性能のバラツキが欠
点であった。 他の方法として、支持体を垂直に固定し
、ダイを上又は下に移動してキャスト液を塗布する方法
もあるが、塗布、曝気ゲル化の一連工程を定速度で行う
ことは不可能であり、実用的でない。In other words, when trying to continuously apply casting liquid to a support, it is necessary to suspend extremely long mutually connected supports with threads, and the device must be extended indefinitely in the height direction, making it impractical. It is completely impossible. Also,
If production is carried out in batch mode using the conventional method, after completing the film formation of one support, manual work such as replacing the threads and cleaning the die is required. The production volume was limited, and it was extremely inefficient. At the same time, it had drawbacks such as uncertainty in die cleaning, etc., and variations in membrane performance due to individual differences. Another method is to fix the support vertically and move the die up or down to apply the casting solution, but it is impossible to perform the series of coating and aeration gelling steps at a constant rate. Yes, it is not practical.
この発明は上記欠点の除去を目的とするもので、膜支持
体を長手方向に連続して膜支持体案内部に供給し、該案
内部を出た膜支持体をキャスティングダイに通すことに
より、キャスト液を膜支持体に塗布し、さらに曝気空間
を通過させた後氷水槽中に浸漬させる際、膜支持体を後
続の膜支持体より高い速度で搬送するこメ区より該後続
の膜支持体から次々と引き離し、一定時間氷水槽中で保
持した後次段の熱処理部に供給することを特徴とするも
のである。The purpose of this invention is to eliminate the above-mentioned drawbacks, by continuously feeding the membrane support in the longitudinal direction to a membrane support guide section, and passing the membrane support exiting the guide section through a casting die. When the casting liquid is applied to the membrane support, and the membrane support is further passed through an aeration space and then immersed in an ice water bath, the membrane support is conveyed at a higher speed than the subsequent membrane support from the rice section to the subsequent membrane support. It is characterized by being separated from the body one after another, kept in an ice water bath for a certain period of time, and then supplied to the next heat treatment section.
次にこの発明の一実施例を第２図乃至第４図にもとづき
説明すれば、６は支持体保持枠、７は支持体取出部、８
は支持体案内管、９はロール駆動部、１０はダイ、１１
はキャスト液連続供給装置、持
１２は膜支持体分離部、１３は膜支持体深部、１４は氷
水槽、１５はコンベア、１６は熱処理槽である〇
一例を す
膜支持体相互の接続６迩４図に端１５−暮妥一。Next, an embodiment of the present invention will be described based on FIGS. 2 to 4. Reference numeral 6 indicates a support holding frame, 7 indicates a support removal portion, and 8
9 is a support guide tube, 9 is a roll drive unit, 10 is a die, 11
12 is a casting liquid continuous supply device, 12 is a membrane support separation section, 13 is a deep part of the membrane support, 14 is an ice water bath, 15 is a conveyor, and 16 is a heat treatment tank. 〇 An example is: Connections between membrane supports 6迩 4 figure and end 15 - Kure Kenichi.
１７は凸コネクタ、１８は凹コネクタであり、材質は合
成樹脂がよく膜支持体外径と同一の径である。 これら
の構成を以下詳細に説明する。17 is a convex connector, and 18 is a concave connector, which are preferably made of synthetic resin and have the same diameter as the outer diameter of the membrane support. These configurations will be explained in detail below.
膜支持体保持枠６は膜支持体のカートリッジであり、上
下２枚の円板の周辺溝１９に膜支持体１が数１０本垂直
に取付けられ、回転する膜支持体槽
取出１から伸びたアーム２０の先端のホルダーによって
１本づつ膜支持体が取出され、゛支持体案内管８に挿入
される。 膜支持体はあらかじめ上
□端に凹コネクタ、下端に凸コネクタが取付け
られている。The membrane support holding frame 6 is a membrane support cartridge, in which several dozen membrane supports 1 are vertically attached to the peripheral grooves 19 of two upper and lower discs, and extend from the rotating membrane support tank take-out 1. The membrane supports are taken out one by one by a holder at the tip of the arm 20 and inserted into the support guide tube 8. Place the membrane support on top in advance.
□A concave connector is attached to the end and a convex connector is attached to the bottom end.
したがって案内管内では降下する支持体の上部に別の支
持体を突きさすように連絡し、さらに突きさした膜支持
体が降下し、その支持体の上端が案内管の中にまで達し
た時、さらに別の膜支持体を突きさすよう支持体取出部
の取出速度を調節する。Therefore, in the guide tube, another support is inserted into the upper part of the descending support, and when the membrane support that has been pushed further descends and the upper end of the support reaches the inside of the guide tube, The removal speed of the support removal unit is adjusted so that another membrane support is pierced.
本実施例の膜支持体駆動部９は電動機、減速機ローラに
よって構成される０ 降下速度は減速機により調節され
る。 膜支持体は支持体案内管８を通ってキャスティン
グダイに通される。The membrane support drive unit 9 of this embodiment is composed of an electric motor and a reducer roller. The descending speed is adjusted by the reducer. The membrane support is passed through the support guide tube 8 into the casting die.
キャスト液供給装置１１は窒素ガスボンベ、調圧弁、キ
ャスト液タンクより構成され、窒素ガスの圧力によって
タンク内のキャスト液をダイに供給するようになってい
る。 実施例によれば窒素ガス圧力は１〜１．５１９／
ｃ♂Ｇで充分である。 この場合、ガスはキャスト液の
酸化防止のため窒素ガスのような不活性ガスが好ましい
。The casting liquid supply device 11 is composed of a nitrogen gas cylinder, a pressure regulating valve, and a casting liquid tank, and is configured to supply the casting liquid in the tank to the die by the pressure of the nitrogen gas. According to the example, the nitrogen gas pressure is 1 to 1.519/
c♂G is sufficient. In this case, the gas is preferably an inert gas such as nitrogen gas to prevent oxidation of the casting liquid.
膜支持体はダイの中でキャスト液が塗布され、ダイを通
過後空気中を通過して曝気される。 ついで氷水中に入
るまでの暖気時間は製膜上重要な条件である。The membrane support is coated with a casting liquid in a die, and after passing through the die, it is passed through air and aerated. The time required for warming up before entering the ice water is an important condition for film formation.
したがってダイ下端と氷水槽の水面の距離はキャスト液
の原料、組成によって異なるが、最適値に調節可能にし
ておく必要がある。Therefore, although the distance between the lower end of the die and the water surface of the ice bath varies depending on the raw material and composition of the casting liquid, it is necessary to be able to adjust it to an optimal value.
酢酸セルロース系のキャスト液では実施例では１００龍
が最適であり、気温、その他の雰囲気によって、変化す
ることは勿論である。For cellulose acetate-based casting liquid, 100 dragons is optimal in the examples, but it goes without saying that it changes depending on the temperature and other atmosphere.
膜支持体分離部１２は氷水槽１４に入った膜支持体を第
３図で説明した凸コネクタ１７と凹コネクタ１８との間
で分離するもので、ホルダー２５が下端の凸コネクタの
降下速度と等速に移動しながらコネクタをキャッチし、
ホルダー２６が上端の凹コネクターをキャッチする。
と同時にホルダー２６はホルダー２５より早い速度で降
下する。The membrane support separating unit 12 separates the membrane support placed in the ice water bath 14 between the convex connector 17 and the concave connector 18 explained in FIG. Catch the connector while moving at a constant speed,
A holder 26 catches the recessed connector at the upper end.
At the same time, holder 26 descends at a faster speed than holder 25.
この操作によって凸コネクタ１７と凹コネクタ１８は分
離する。 分離後ホルダー２５は凸コネクターをはづす
。 つぎにホルダー２７が凸コネクタをキャッチするこ
とによって、膜の上部および下部がホルダー２６および
ホルダー２７につかまれている状態になる。 両端をつ
かまれた膜は膜保持部１３によって位置を変換し、水平
に移動され、コンベアにのせられる。By this operation, the convex connector 17 and the concave connector 18 are separated. After separation, the holder 25 attaches the convex connector. Next, the holder 27 catches the convex connector, so that the upper and lower parts of the membrane are held by the holders 26 and 27. The membrane held at both ends is changed in position by the membrane holder 13, moved horizontally, and placed on a conveyor.
すなわち、ダイ１０までは膜支持体１は連続して降下し
膜が形成された後、膜支持体１は１本づつに分離されて
水平に移動し順次コンベア１５にのせられることになる
。That is, the membrane support 1 is continuously lowered to the die 10, and after a membrane is formed, the membrane support 1 is separated one by one, moved horizontally, and sequentially placed on the conveyor 15.
氷水槽１４中で膜、は１時間コンベア１５上で移動しつ
つ滞留したのち熱処理水槽１６内のコンベア２８に移動
される。 一定時間熱処理された膜支持体１は両端の凸
および凹コネクタを取りはずしたのち製品とされる。The membrane remains in the ice water tank 14 while moving on the conveyor 15 for one hour, and then is transferred to the conveyor 28 in the heat treatment water tank 16. The membrane support 1 that has been heat-treated for a certain period of time is made into a product after removing the convex and concave connectors at both ends.
イ１０に導入し、一定厚さにキャスト液を塗布し、曝気
させたのち、氷水槽１４中にてゲル化させる際、膜支持
体を後続の膜支持体より高い速度で搬送することにより
後続の膜支持体から次々と引き離し、一定時間氷水槽中
で保持した後次段の熱処理部に供給している。When the membrane support is conveyed at a higher speed than the subsequent membrane support, the membrane support is conveyed at a higher speed than the subsequent membrane support. The membrane is separated one after another from the membrane support, held in an ice water bath for a certain period of time, and then supplied to the next heat treatment section.
本発明はこのように構成したためダイ１０への膜支持体
ｌの導入が完全に連続化し、ダイ１０中のキャスト液が
空気に触れることなく、またキャスト液はダイ１０の中
で滞留することがないため常に新しいキャスト液が塗布
されることになる。Since the present invention is configured in this manner, the introduction of the membrane support l into the die 10 is completely continuous, the casting liquid in the die 10 does not come into contact with air, and the casting liquid does not remain in the die 10. Since there is no new casting solution, new casting liquid is always applied.
特に酢酸セルロース系のキャスト液はアセトン溶媒を使
用しており、常温でもその蒸発速度は大であるため滞留
によるアセトン蒸発はキャスト液の組成変化を生じ膜性
能を低下させ、性能のノ（ラッキを生じるものであるが
１この点本発明ではその不安はない。In particular, cellulose acetate-based casting liquid uses acetone as a solvent, and its evaporation rate is high even at room temperature. Therefore, acetone evaporation due to stagnation causes a change in the composition of the casting liquid, lowering film performance, and reducing performance. However, in the present invention, there is no such concern.
また、自動化により品質が一定となり、品質管理が容易
となるばかりでなく、検査工程の省略にもなり、その効
果は大である。Furthermore, automation not only makes quality constant and quality control easier, but also eliminates the inspection process, which has great effects.
第１図は従来の製膜装置を示す概略図、第２図は本発明
の製膜装置を示す概略図、第３図は第２図の氷水槽の側
断面および熱処理槽を示す概略図、第４図は凸コネクタ
と凹コネクタとの嵌合状態を示す断面図である。
１・・・・・・膜支持体 ６・・・・・・支持体保
持枠７・・・・・・支持体取出部 ９・・・・・−
ロール駆動部１０・・・・・・キャステベングタイ
１１・・・・・・キャスト液連続供給装置１２・・・・
・・膜支持体分離部 １３・・・・・・膜支持体保持部
１４・・・・・・氷水槽 １６・・・・・・熱処理槽
第３図
第４図
■下FIG. 1 is a schematic diagram showing a conventional film forming apparatus, FIG. 2 is a schematic diagram showing a film forming apparatus of the present invention, and FIG. 3 is a schematic diagram showing a side cross section of the ice bath and a heat treatment tank in FIG. 2. FIG. 4 is a sectional view showing the fitted state of the convex connector and the concave connector. 1...Membrane support 6...Support holding frame 7...Support removal part 9...-
Roll drive unit 10... Cast bending tie 11... Cast liquid continuous supply device 12...
...Membrane support separating section 13...Membrane support holding section 14...Ice water bath 16...Heat treatment tank Fig. 3 Fig. 4 ■Bottom
Claims (1)
該案内部を出た膜支持体をキャスティン葱 グダイｔに通すことにより、キャストを膜支持体に塗布
し、さらに曝気空間を通過させた後氷水槽中に浸漬させ
る際、膜支持体を後続の膜支持体より高い速度で搬送す
ることにより該後続の膜支持体から次々と引き離し、一
定時間氷水槽中で保持した後次段の熱処理部に供給する
ことを特徴とする外圧式管状膜の連続製造方法[Claims] The membrane support is continuously supplied to the support guide in the longitudinal direction,
By passing the membrane support that has come out of the guide part through a casting machine, the cast is applied to the membrane support, and after passing through an aeration space, the membrane support is immersed in an ice water bath. An external pressure type tubular membrane characterized in that it is separated one after another from the subsequent membrane support by conveying it at a higher speed than the membrane support, and after being kept in an ice water bath for a certain period of time, it is supplied to the next heat treatment section. Continuous manufacturing method
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57120659A JPS5841884B2 (en) | 1982-07-13 | 1982-07-13 | Continuous production method of external pressure type tubular membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57120659A JPS5841884B2 (en) | 1982-07-13 | 1982-07-13 | Continuous production method of external pressure type tubular membrane |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53047857A Division JPS5823124B2 (en) | 1978-04-24 | 1978-04-24 | Continuous production method and device for external pressure tubular membrane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5824306A true JPS5824306A (en) | 1983-02-14 |
| JPS5841884B2 JPS5841884B2 (en) | 1983-09-16 |
Family
ID=14791709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57120659A Expired JPS5841884B2 (en) | 1982-07-13 | 1982-07-13 | Continuous production method of external pressure type tubular membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5841884B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01103679U (en) * | 1987-12-28 | 1989-07-13 | ||
| US6994767B2 (en) | 2002-03-06 | 2006-02-07 | Nsk-Warner K.K. | Method and apparatus for adhering friction material to core plate for lockup clutch |
| JP2010089146A (en) * | 2008-10-10 | 2010-04-22 | Kawajiri Kogyo Kk | Hot plate and press machine |
-
1982
- 1982-07-13 JP JP57120659A patent/JPS5841884B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01103679U (en) * | 1987-12-28 | 1989-07-13 | ||
| JPH0540066Y2 (en) * | 1987-12-28 | 1993-10-12 | ||
| US6994767B2 (en) | 2002-03-06 | 2006-02-07 | Nsk-Warner K.K. | Method and apparatus for adhering friction material to core plate for lockup clutch |
| JP2010089146A (en) * | 2008-10-10 | 2010-04-22 | Kawajiri Kogyo Kk | Hot plate and press machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5841884B2 (en) | 1983-09-16 |
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