JPS62213809A - Liquid membrane separation device - Google Patents
Liquid membrane separation deviceInfo
- Publication number
- JPS62213809A JPS62213809A JP5591886A JP5591886A JPS62213809A JP S62213809 A JPS62213809 A JP S62213809A JP 5591886 A JP5591886 A JP 5591886A JP 5591886 A JP5591886 A JP 5591886A JP S62213809 A JPS62213809 A JP S62213809A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- membrane
- liquid
- separation device
- hollow
- 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 87
- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 238000000926 separation method Methods 0.000 title claims description 15
- 239000000758 substrate Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 239000011295 pitch Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
- B01D33/21—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces with hollow filtering discs transversely mounted on a hollow rotary shaft
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液体膜分離装置、詳しくは処理液中で透過膜が
回転されるこの種の装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid membrane separation device, and more particularly to a device of this type in which a permeable membrane is rotated in a processing liquid.
液体膜分離装置に用いられる１１タモジエールとしては
、中空糸型、管状型、スパイラル型及び耐圧板型が知ら
れている。これらの膜モジュールでは、いずれも被処理
液を流動させることで、膜面の）１度分極を抑制して効
率的に透過液を得るようになっている。Hollow fiber types, tubular types, spiral types, and pressure plate types are known as 11 Tamogiere used in liquid membrane separation devices. In all of these membrane modules, by flowing the liquid to be treated, one-degree polarization of the membrane surface is suppressed and a permeated liquid is efficiently obtained.
しかしながら、上記膜モジュールを用いた従来の液体膜
分離装置では、エネルギー損失が大であること等からエ
ネルギーコストが大であったり、圧力損失が大であるこ
とから高い操作圧力が必要であると云う問題があった。However, in conventional liquid membrane separation equipment using the membrane module described above, energy costs are high due to large energy loss, and high operating pressure is required due to high pressure loss. There was a problem.
そこで、第９図及び第１０図に示されるように、中空円
板状の支持板１０の外表面に透過膜１２を配して板状［
１３となし、この板状ｐＩＡ１３を所定間隔で中空状の
軸１４に列設し、この軸１４を駆動回転して板状ｓ１３
を被処理液中で回転させるタイプの液体膜分離装置が考
えられている。Therefore, as shown in FIGS. 9 and 10, a permeable membrane 12 is arranged on the outer surface of a hollow disc-shaped support plate 10, and a plate-shaped [
13, the plate-like pIA13 is arranged in a row on a hollow shaft 14 at a predetermined interval, and the shaft 14 is driven and rotated to form a plate-like pIA13.
A type of liquid membrane separation device in which a membrane is rotated in a liquid to be treated has been considered.
この装置では、支持板ｌＯの中空部１６は連通孔１８を
介して透過膜１２と連通されているとともに、軸１４の
中空部２０とも連通されており、静水圧により透過膜１
２を透過した透過液は、連通孔１８、中空部１６、中空
部２０を経て集液されるようになっている。従って、圧
力損失がないので低い操作圧力で所要の透過性能を得る
ことができる長所がある。In this device, the hollow part 16 of the support plate 10 is communicated with the permeable membrane 12 through the communication hole 18, and also communicated with the hollow part 20 of the shaft 14, so that the permeable membrane
The permeated liquid that has passed through 2 is collected through the communication hole 18, the hollow part 16, and the hollow part 20. Therefore, since there is no pressure loss, there is an advantage that the required permeation performance can be obtained at a low operating pressure.
また、この装置では、板状膜１３が回転されることで、
膜面における濃度分極が抑制されるようになっている。Moreover, in this device, by rotating the plate-like membrane 13,
Concentration polarization at the membrane surface is suppressed.
従って、板状膜Ｉ３の回転抵抗が小さいことから、軸１
４を駆動するためのエネルギーコストが低くなる長所が
ある。Therefore, since the rotational resistance of the plate-like membrane I3 is small, the shaft 1
This has the advantage that the energy cost for driving 4 is low.
しかしながら、このような液体膜分離装置では、板状膜
１３と板状Ｈ１３とが接近配置されるため、被液処理が
板状膜１３と共回りを起し易（、板状膜１３の回転中心
に向うほど被処理液の流動性が悪くなることがある。そ
の結果、板状膜１３の回転中心近傍では、被処理液が滞
留して濃度分極が局部的に上昇することがあり、透過膜
１２の実質有効面積が低減されてしまうことがあるとい
う問題が生じる。However, in such a liquid membrane separation device, since the plate-shaped membrane 13 and the plate-shaped H13 are arranged close to each other, the liquid treatment tends to co-rotate with the plate-shaped membrane 13 (rotation of the plate-shaped membrane 13 The fluidity of the liquid to be treated may become worse as it moves toward the center.As a result, the liquid to be treated may stagnate near the center of rotation of the plate membrane 13, causing a local increase in concentration polarization. A problem arises in that the effective effective area of membrane 12 may be reduced.
本発明は上記事実を考慮して、板状膜の回転中心近傍に
おける被処理液の滞留を防止することができる液体膜分
離装置を得ることが目的である。In consideration of the above-mentioned facts, the present invention aims to provide a liquid membrane separation device that can prevent the liquid to be treated from stagnation in the vicinity of the rotation center of the plate membrane.
本発明に係る液体膜分離装置では、駆動回転される複数
の板状膜が所定間隔をあけて互いに対向するように液処
理槽内に配置されたこの種装置において、前記互いに対
向する板状膜のうち少くとも一方の板状膜は表面が凹凸
形状とされた構成となっている。In the liquid membrane separation device according to the present invention, in this type of device, a plurality of plate-shaped membranes that are driven and rotated are arranged in a liquid treatment tank so as to face each other at a predetermined interval, and the plate-shaped membranes that face each other are arranged in a liquid treatment tank. At least one of the plate-like membranes has an uneven surface.
上記構成の本発明では、互いに対向する板状膜の対向間
に位置する被処理液は、板状膜の凹凸形状によって攪拌
されて乱流を生じ、板状膜の回転中心近傍に位置する被
処理液は流動されて他と置換される。In the present invention having the above configuration, the liquid to be treated located between the opposing plate-like membranes is stirred by the uneven shape of the plate-like membranes to generate a turbulent flow, The processing liquid is flowed and replaced by others.
第１図乃至第３図には本発明に係る液体膜分離装置の実
施例が示されている。1 to 3 show an embodiment of a liquid membrane separation apparatus according to the present invention.
板状１ｌａ２７は、中空円板状の支持板２２の外面の表
裏両面に透過膜２５が接着されて構成されている。この
板状１１１２７の外面の表裏両面には、中心から半径方
向へ延出する円弧断面の凸部２４が放射状に形成されて
いる。板状１１１２７は、多数枚が一本の中空状の軸２
６に、所定間隔をあけて固着されている。支持板２２の
中空部２日は、支持板２２に多数設けられた連通孔３０
を介して透過膜２５に連通されているとともに、軸２６
の中空部３２に連通されている。The plate 1la27 is constructed by adhering the permeable membrane 25 to both the front and back surfaces of the outer surface of the hollow disk-shaped support plate 22. On both the front and back sides of the outer surface of this plate-shaped plate 11127, convex portions 24 having an arcuate cross section extending radially from the center are formed radially. The plate-like 11127 is made up of a single hollow shaft 2.
6 at predetermined intervals. The hollow part 2 of the support plate 22 has many communication holes 30 provided in the support plate 22.
is connected to the permeable membrane 25 via the shaft 26.
It communicates with the hollow part 32 of.
多数の板状膜２７が一体とされた軸２６は複数本が並列
されて、第３図に示されるように液処理槽３４内に配置
されている。軸２６は液処理槽３４の側壁３４Ａに回転
自在に支持されており、図示しない駆動装置で駆動回転
されるようになっている。軸２６の中空部３２は液処理
槽３４外に連通されている。液処理槽３４には、上方に
被処理液の導入口３８が開口され、下方に溶質の排出口
４０が開口されている。排出口４０は所定の時期に開口
されるが、通常は閉塞されている。A plurality of shafts 26, in which a large number of plate-like membranes 27 are integrated, are arranged in parallel and arranged in the liquid processing tank 34, as shown in FIG. The shaft 26 is rotatably supported by the side wall 34A of the liquid processing tank 34, and is driven and rotated by a drive device (not shown). The hollow portion 32 of the shaft 26 communicates with the outside of the liquid processing tank 34 . The liquid treatment tank 34 has an inlet 38 for the liquid to be treated at the top and a solute outlet 40 at the bottom. Although the outlet 40 is opened at a predetermined time, it is normally closed.
次に本実施例の作用を説明する。Next, the operation of this embodiment will be explained.
被処理液４２は導入口３８から液処理槽３４に導入され
る。被処理液４２が導入された液処理槽３４では、駆動
装置が駆動されて軸２６が駆動回転されている。軸２６
の駆動回転で板状膜２７も回転されている。透過膜２５
には被処理液４２の静水圧が作用し、この静水圧により
被処理液４２の溶媒のみが透過膜２５を透過される。透
過膜２５を透過した溶媒、即ち、透過液４４は連通孔３
０、中空部２８を経て中空部３２に集液されて、液処理
槽３４外へ導出される。The liquid to be treated 42 is introduced into the liquid processing tank 34 from the inlet 38 . In the liquid processing tank 34 into which the liquid to be processed 42 has been introduced, a drive device is driven to drive and rotate the shaft 26 . axis 26
The plate-like membrane 27 is also rotated by the driving rotation. Permeable membrane 25
The hydrostatic pressure of the liquid to be treated 42 acts on it, and only the solvent of the liquid to be treated 42 is permeated through the permeable membrane 25 due to this hydrostatic pressure. The solvent that has passed through the permeable membrane 25, that is, the permeated liquid 44, passes through the communication hole 3.
0, the liquid is collected in the hollow part 32 through the hollow part 28 and led out of the liquid processing tank 34.
被処理液４２の溶質は透過膜２５に阻止されるので、透
過膜２５の膜面及びその近傍には溶質が集中しがちであ
るが、板状ＷＪ２７が回転されているので、板状膜２７
から離間され、その比重が大である場合には液処理槽３
４の下方へ沈降される。Since the solute in the liquid to be treated 42 is blocked by the permeable membrane 25, the solute tends to concentrate on the membrane surface of the permeable membrane 25 and its vicinity.
If the specific gravity is large, the liquid treatment tank 3
It sinks below 4.
一方、板状膜２７の回転中心近傍では、流動が起り難く
溶質が滞留して濃度分極が高くなりがちであるが、本実
施例では板状膜２７に放射状に凸部２４が形成されてい
るので、この凸部２４の作用によって、板状膜２７と板
状膜２７との間に位置する被処理液４２が攪拌されて流
動し他と置換されるので、溶質が滞留してしまうことが
防止されている。On the other hand, near the center of rotation of the plate-like membrane 27, it is difficult for flow to occur and solutes tend to stagnate, resulting in high concentration polarization. Therefore, due to the action of the convex portions 24, the liquid to be treated 42 located between the plate-like membranes 27 is stirred and flows, and is replaced with other substances, so that solutes are prevented from stagnation. Prevented.
このように本実施例では、板状膜２７に放射状に凸部２
４が形成されているので、即ち、凹凸が板状膜２７の回
転方向に沿って形成されているので、板状膜２７の回転
中心近傍での溶質の滞留が防止されて、局部的に濃度分
権が高くなって透過膜２５の実質有効面積が低減されて
しまうと云うことがない。As described above, in this embodiment, the convex portions 2 are formed radially on the plate-like membrane 27.
4 is formed, that is, the unevenness is formed along the rotation direction of the plate-shaped membrane 27, so that solute retention near the rotation center of the plate-shaped membrane 27 is prevented, and the concentration is locally reduced. There is no possibility that the effective area of the permeable membrane 25 will be reduced due to increased decentralization.
なお、上記実施例では凸部２４は板状膜２７の表裏両面
に設けたが、互いに対向する板状膜２７のうち、いずれ
か一方にのみ設けるようにしても良い。In the above embodiment, the convex portions 24 are provided on both the front and back sides of the plate-like membrane 27, but they may be provided only on one of the plate-like membranes 27 facing each other.
また、互いに対向する板状ＷＡ２１に設けられる凸部２
４は、互いの凸部２４同士が正対向するように配置して
も、互いに凸部２４同士が正対向しないように配置して
も良く、さらに互いに対向する両板状膜２７の凸部２４
の配置ピッチを互いに異なるものとしても良い。Moreover, the convex portions 2 provided on the plate-shaped WA21 facing each other
4 may be arranged so that the protrusions 24 are directly opposite each other, or may be arranged so that the protrusions 24 are not directly opposite each other, and furthermore, the protrusions 24 of both plate-like membranes 27 facing each other
The arrangement pitches may be different from each other.
また、一本の軸２６上で隣接する板状膜２７同士の間隙
へ、隣接する他の軸２６に設けられた板状膜２７が進入
するように、互いに隣接する軸２６に夫々固着された板
状膜２７同士をオーバラップさせる配室態様とすること
も可能である。Further, the plate-like membranes 27 provided on the other adjacent shafts 26 are fixed to the adjacent shafts 26 so that the plate-like membranes 27 provided on the other adjacent shafts 26 enter into the gap between the adjacent plate-like membranes 27 on one shaft 26. It is also possible to arrange the chambers so that the plate-like membranes 27 overlap each other.
また、上記実施例では支持板２２は中空部２８及び連通
孔３０を設けた構成としたが、これに代えて多孔賀の材
料からなる支持板としても良い。Further, in the above embodiment, the support plate 22 has a hollow portion 28 and a communication hole 30, but instead of this, a support plate made of porous material may be used.
第４図及び第５図には本発明の他の実施例の要部が示さ
れている。この実施例では板状膜２７は軸２６の直径方
向に沿ってジグザグ状に屈曲されている。この実施例で
は、前記実施例の効果に加え、板状膜２７の直径を増加
させることなく板状膜２７の面積を増大させることがで
きる効果を有する。4 and 5 show essential parts of another embodiment of the present invention. In this embodiment, the plate-like membrane 27 is bent in a zigzag shape along the diameter direction of the shaft 26. In addition to the effects of the previous embodiments, this embodiment has the effect that the area of the plate-shaped membrane 27 can be increased without increasing the diameter of the plate-shaped membrane 27.
第６図乃至第８図には本発明のさらに他の実施例の要部
が示されている。この実施例では、第８図に示されるよ
うに、板状膜２７には、渦巻羽根５８が突出形成されて
いるとともに、中央の透孔６０の周囲に等間隔で３個の
透孔４６が形成されている。各板状膜２２は３本の集液
バイブを兼ねた支持バイブ４８が透孔４６に挿通されて
、板状膜２７と支持パイプ４８とが一体化されている。6 to 8 show main parts of still another embodiment of the present invention. In this embodiment, as shown in FIG. 8, spiral vanes 58 are formed protruding from the plate membrane 27, and three through holes 46 are formed at equal intervals around a central through hole 60. It is formed. In each plate-shaped membrane 22, three support vibrators 48 which also serve as liquid-collecting vibes are inserted through the through holes 46, so that the plate-shaped membrane 27 and the support pipe 48 are integrated.
なお、各板状膜２７は各支持バイ１４８に嵌合されたス
ペーサ５０により、所定の間隔に保持されている。支持
パイプ４８には、さらに端末板５２が一体とされている
。端末板５２には支軸５４が固着されているとともに、
多数の透孔５６が形成されている。Note that each plate-like membrane 27 is held at a predetermined interval by a spacer 50 fitted to each support bi 148. A terminal plate 52 is further integrated with the support pipe 48. A support shaft 54 is fixed to the terminal plate 52, and
A large number of through holes 56 are formed.
この実施例では、渦巻羽根５Ｂの作用により被処理液は
第６図に矢印で示されるように、端末板５２の透孔５６
から吸引されて板状膜２７と板状膜２７との間隙から板
状膜２７の外方に吸出されるようになっているので、溶
質の滞留防止効果が極めて優れている。In this embodiment, due to the action of the spiral vane 5B, the liquid to be treated flows through the through hole 56 of the end plate 52, as shown by the arrow in FIG.
Since the solute is sucked out from the plate-shaped membrane 27 and sucked out from the gap between the plate-shaped membranes 27 and the plate-shaped membrane 27, the solute retention prevention effect is extremely excellent.
以上説明したように本発明に係る液体膜分ＷＢ装置では
、互いに対向する板状膜のうち少なくとも一方の板状膜
は表面が凹凸形状とされているので、板状膜の回転中心
近傍における被処理液の滞留を防止することができる効
果を有する。As explained above, in the liquid film separation WB device according to the present invention, at least one of the plate-like films facing each other has an uneven surface, so that the surface of at least one of the plate-like films facing each other is uneven. This has the effect of preventing stagnation of the processing liquid.
第１図乃至第３図は本発明に係る液体膜分離装概略正面
図であり、第４図及び第５図は本発明の他の実施例の要
部を示し、第４図は板状膜の平面図、第５図は第４図の
Ｖ−Ｖ線矢視図であり、第６図乃至第８図は本発明のさ
らに他の実施例の要部を示し、第６図は第７図のＶｌ−
ＶＩ線矢視図で積層された板状膜の側断面図、第７図は
第６図の■−■線矢視図、第８図は第６図の■−■線矢
視図であり、第９図及び第１Ｏ図は本発明をなす前提と
なった装置の説明図を示し、第９図は積層された板状膜
の概略斜視図、第１０図は板状膜の詳細断面図である。
２２・・・支持板、
２４・・・凸部、
２５・・・透過膜、
２６・・・軸、
２７・・・板状膜、
３４・・・液処理槽。1 to 3 are schematic front views of a liquid membrane separator according to the present invention, and FIGS. 4 and 5 show main parts of other embodiments of the present invention, and FIG. FIG. 5 is a plan view taken along the line V-V in FIG. Vl- in the diagram
FIG. 7 is a side cross-sectional view of the laminated plate-like membrane taken along the line VI, FIG. 7 is a view taken along the ■-■ line in FIG. 6, and FIG. 8 is a view taken along the ■-■ line in FIG. , FIG. 9 and FIG. 1O show explanatory diagrams of the device that is the premise for making the present invention, FIG. 9 is a schematic perspective view of a laminated plate-like membrane, and FIG. 10 is a detailed sectional view of the plate-like membrane. It is. 22...Support plate, 24...Convex portion, 25...Permeable membrane, 26...Shaft, 27...Plate membrane, 34...Liquid treatment tank.
Claims (4)
互いに対向するように液処理槽内に配置された液体膜分
離装置において、前記互いに対向する板状膜のうち少く
とも一方の板状膜は表面が凹凸形状とされていることを
特徴とする液体膜分離装置。(1) In a liquid membrane separation device in which a plurality of plate-shaped membranes that are driven and rotated are arranged in a liquid treatment tank so as to face each other at a predetermined interval, at least one of the plate-shaped membranes facing each other is A liquid membrane separation device characterized by a plate membrane having an uneven surface.
許請求の範囲（１）記載の液体膜分離装置。(2) The liquid membrane separation device according to claim (1), wherein the uneven shape is along the rotational direction of the plate-like membrane.
許請求の範囲（１）記載の液体膜分離装置。(3) The liquid membrane separation device according to claim (1), wherein the uneven shape is along the radial direction of the plate-like membrane.
許請求の範囲（１）記載の液体膜分離装置。(4) The liquid membrane separation device according to claim (1), wherein the convex and convex portions have a spiral blade shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5591886A JPS62213809A (en) | 1986-03-13 | 1986-03-13 | Liquid membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5591886A JPS62213809A (en) | 1986-03-13 | 1986-03-13 | Liquid membrane separation device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4217748A Division JPH0741148B2 (en) | 1992-08-17 | 1992-08-17 | Liquid membrane separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62213809A true JPS62213809A (en) | 1987-09-19 |
| JPH0512968B2 JPH0512968B2 (en) | 1993-02-19 |
Family
ID=13012482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5591886A Granted JPS62213809A (en) | 1986-03-13 | 1986-03-13 | Liquid membrane separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62213809A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297104A (en) * | 1988-05-25 | 1989-11-30 | Ngk Insulators Ltd | Rotary disc-type liquid separation device |
| JPH0370729U (en) * | 1989-11-14 | 1991-07-16 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61200808A (en) * | 1985-03-01 | 1986-09-05 | Agency Of Ind Science & Technol | Apparatus for filtering solution |
-
1986
- 1986-03-13 JP JP5591886A patent/JPS62213809A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61200808A (en) * | 1985-03-01 | 1986-09-05 | Agency Of Ind Science & Technol | Apparatus for filtering solution |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01297104A (en) * | 1988-05-25 | 1989-11-30 | Ngk Insulators Ltd | Rotary disc-type liquid separation device |
| JPH0370729U (en) * | 1989-11-14 | 1991-07-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0512968B2 (en) | 1993-02-19 |
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