JP2877845B2 - Liquid treatment tower - Google Patents
Liquid treatment towerInfo
- Publication number
- JP2877845B2 JP2877845B2 JP1205762A JP20576289A JP2877845B2 JP 2877845 B2 JP2877845 B2 JP 2877845B2 JP 1205762 A JP1205762 A JP 1205762A JP 20576289 A JP20576289 A JP 20576289A JP 2877845 B2 JP2877845 B2 JP 2877845B2
- Authority
- JP
- Japan
- Prior art keywords
- long fiber
- fiber bundle
- tower
- exchange resin
- filter
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims description 37
- 239000000835 fiber Substances 0.000 claims description 90
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 27
- 239000003456 ion exchange resin Substances 0.000 claims description 27
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 22
- 238000012545 processing Methods 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000011550 stock solution Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 11
- 230000001172 regenerating effect Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 4
- 239000011800 void material Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 239000000706 filtrate Substances 0.000 description 14
- 238000004891 communication Methods 0.000 description 13
- 230000007423 decrease Effects 0.000 description 10
- 238000005342 ion exchange Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012510 hollow fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、液体中に含まれる金属イオンや塩類等の溶
解成分をイオン交換樹脂に吸着あるいはイオン交換させ
て除去したり、あるいは濃縮したりするための装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to removing or concentrating dissolved components such as metal ions and salts contained in a liquid by adsorbing or ion-exchanging the ion-exchange resin. The present invention relates to a device for performing
＜従来の技術＞ たとえば、懸濁物と溶解性不純物とが共存する液体の
浄化を行おうとする場合、従来は、前処理装置により原
液中の懸濁物を予め除去したあと、塔内にイオン交換樹
脂や粒状活性炭等の反応性粒状体を充填してなる液体処
理塔で溶解性不純物を吸着あるいはイオン交換によって
除去することにより行われ、そして前処理装置としては
通常、砂濾過器や中空糸状の膜を用いた濾過器あるいは
カートリッジフィルタ等の濾過装置が使用されているの
が一般的である。<Prior art> For example, when purifying a liquid in which a suspended substance and a soluble impurity coexist, conventionally, the suspended substance in the undiluted solution is removed in advance by a pretreatment device, and then the ion It is carried out by removing soluble impurities by adsorption or ion exchange in a liquid treatment tower filled with reactive granular material such as exchange resin or granular activated carbon, and the pretreatment device is usually a sand filter or hollow fiber Generally, a filtration device using a membrane or a filtration device such as a cartridge filter is used.
＜発明が解決しようとする課題＞ このような浄化方法では、独立した二つの装置を要す
るとともに各装置を連絡する配管や弁、場合によっては
ポンプやタンクを必要とするため、大きな設備となって
設置コストが高くなるとともに、大きな設置スペースを
必要とし、また運転や点検保守に多大の労力が必要とな
ってしまう。そのため、本来は前記液体処理塔の前に濾
過装置を設置したいと考えても、以上のような問題から
設置に至らない場合も生じている。<Problems to be Solved by the Invention> Such a purification method requires two independent devices and requires pipes and valves for connecting the devices, and in some cases, a pump and a tank. The installation cost increases, a large installation space is required, and a great deal of labor is required for operation and inspection and maintenance. Therefore, even if it is originally desired to install a filtration device in front of the liquid processing tower, the installation may not be performed due to the above problems.
この問題を解決するためには、濾過装置を液体処理塔
の内部に組み込む方法が考えられるが、この方法が産業
分野で一般的に利用されないのは以下の問題を生ずるた
めである。In order to solve this problem, a method of incorporating a filtration device into the inside of a liquid processing tower is considered. However, this method is not generally used in the industrial field because of the following problems.
つまり、従来から使用されている前述のような濾過装
置を液体処理塔の内部に組み込もうとすると、装置の構
造が極めて複雑となるため、設計、製作上の無理が生じ
る、運転方法が複雑となる、保守点検性が大幅に低下す
る等の不具合を生じ、そのため、装置本来の機能を十分
発揮できなくなってしまうからである。In other words, when trying to incorporate the above-mentioned conventional filtration device into the inside of the liquid treatment tower, the structure of the device becomes extremely complicated, which makes it difficult to design and manufacture. This causes problems such as a significant decrease in the maintenance and inspection properties, and therefore, the original functions of the device cannot be sufficiently exhibited.
本発明は、濾過装置と反応性粒状体を充填してなる液
体処理塔を複合化するにあたって、塔内の構造を極めて
簡素にした新しい液体処理塔を提供することを目的とす
るものである。SUMMARY OF THE INVENTION An object of the present invention is to provide a new liquid processing tower in which the structure inside the tower is extremely simplified when a filtering apparatus and a liquid processing tower filled with reactive granules are combined.
＜問題点を解決するための手段＞ 上記目的を達成するためになされた本発明よりなる液
体処理塔は、塔内にイオン交換樹脂を充填するととも
に、当該充填層の上方に単繊維の集合体からなる長繊維
束を立設させてなる濾過体を形成し、当該濾過体の上方
部に原液の流入管を、また前記イオン交換樹脂充填層の
下方部に処理液の流出管をそれぞれ連通した液体処理塔
であって、前記濾過体は、塔内下方のイオン交換樹脂充
填層から上方に間隔を空けた位置に横設した透水性支持
体に長繊維束の下端を固定するとともに、その上端を自
由端として塔内部に長繊維束を立設した構成からなり、
当該長繊維束の上端から下端に向かって下降流で原液を
通液することによって長繊維束内の空隙部で懸濁物を捕
捉するようになし、更に前記透水性支持体とその下方の
イオン交換樹脂充填層の間の塔内空間部に、前記透水性
支持体上方の長繊維束濾過体を逆洗洗浄するための逆洗
空気及び逆洗水を流入させる管を接続するとともに、該
空間部に、下方のイオン交換樹脂充填層を再生するため
の再生薬液を流入させる管を接続したことを特徴とす
る。<Means for Solving the Problems> A liquid treatment tower according to the present invention made to achieve the above object is to fill an ion exchange resin into the tower and to assemble a single fiber above the packed bed. A filter was formed by erecting a long fiber bundle consisting of: a raw liquid inflow pipe was communicated above the filter, and a treatment liquid outflow pipe was communicated below the ion-exchange resin packed layer. A liquid treatment tower, wherein the filter body fixes the lower end of the long fiber bundle to a water-permeable support provided laterally at a position spaced upward from the ion-exchange resin packed bed in the lower part of the tower, and has the upper end thereof. Consists of a long fiber bundle standing inside the tower with the free end as
By passing the undiluted solution in a downward flow from the upper end to the lower end of the long fiber bundle, the suspension is trapped in the void portion in the long fiber bundle, and the water permeable support and the ions below the suspension are further captured. A pipe for flowing backwash air and backwash water for backwashing and washing the long fiber bundle filter above the permeable support is connected to the space in the tower between the exchange resin packed beds, and the space is connected to the space. A pipe through which a regenerating chemical solution for regenerating a lower ion-exchange resin packed layer is connected to the portion.
以下に本発明を詳細に説明する。 Hereinafter, the present invention will be described in detail.
第１図は本発明の液体処理塔のフローを示す全体図で
あり、図中１は塔本体を示している。当該塔本体１内の
下方部にイオン交換樹脂２を充填してなる充填層３を形
成するとともに、当該充填層３の上方に複数本の長繊維
束４を立設してなる濾過体５を形成させる。FIG. 1 is an overall view showing the flow of the liquid processing tower of the present invention, in which 1 indicates the tower main body. A packed body 3 formed by filling the ion exchange resin 2 in a lower portion of the tower body 1 is formed, and a filter body 5 having a plurality of long fiber bundles 4 erected above the packed bed 3 is formed. Let it form.
当該濾過体５は、前記充填層３の上方に横設した、た
とえば多孔板６等の透水性支持体に単繊維の集合体から
なる長繊維束４の下端を後述する固定具７によって固定
するとともに、長繊維束４の上端を自由端とし、長繊維
束４を多孔板６の上方の塔本体１内に比較的密に充填す
ることにより、長繊維束４を立設した構成のものであ
り、原液の濾過に際しては長繊維束４の上端から下端に
向かって下降流で原液を通液することによって行う。The filter body 5 fixes the lower end of the long fiber bundle 4 made of an aggregate of single fibers to a water-permeable support such as a perforated plate 6 laid laterally above the packed layer 3 by a fixture 7 described later. At the same time, the upper end of the long fiber bundle 4 is a free end, and the long fiber bundle 4 is relatively densely filled in the tower main body 1 above the perforated plate 6, so that the long fiber bundle 4 is erected. In addition, the filtration of the undiluted solution is performed by passing the undiluted solution in a downward flow from the upper end to the lower end of the long fiber bundle 4.
前記多孔板６はたとえば塔本体１内の側胴部に設けた
座８によってボルトによって固定されており、塔本体１
の上部鏡板部を取り除くことによって、長繊維束４を固
定したまま多孔板６を塔外に取り出すことができるよう
になっている。The perforated plate 6 is fixed by bolts, for example, by a seat 8 provided on a side trunk portion in the tower body 1.
By removing the upper end plate portion, the perforated plate 6 can be taken out of the tower with the long fiber bundle 4 fixed.
また、前記濾過体５の上方部に原液流入管９と逆洗排
水排出管10をそれぞれ連通し、更に前記充填層３の下方
部に処理液流出管11を連通するとともに当該処理液流出
管11にブロー管12を分岐して連通する。A stock solution inflow pipe 9 and a backwash drainage pipe 10 communicate with an upper part of the filter body 5, and a treatment liquid outflow pipe 11 communicates with a lower part of the packed bed 3. The branch pipe 12 is branched to communicate with the pipe.
また、充填層３の上方であって多孔板６の下方の空間
部に濾過体５を逆洗するための逆洗空気流入管13を連通
し、当該逆洗空気流入管13に逆洗水流入管14を分岐して
連通する。Further, a backwash air inflow pipe 13 for backwashing the filter 5 is communicated with a space above the packed bed 3 and below the perforated plate 6, and the backwash air inflow pipe 13 is connected to the backwash air inflow pipe 13. Branch 14 and communicate.
なお、15は充填層３と多孔板６との間の前記空間部に
付設した、イオン交換樹脂２の再生薬液のディストリビ
ュータ、16は当該ディストリビュータ15に連通させた再
生薬液供給管であり、これらは必要に応じて設置され
る。また、17〜23はそれぞれ弁を示す。Reference numeral 15 denotes a distributor for the regenerated chemical solution of the ion exchange resin 2 provided in the space between the packed bed 3 and the perforated plate 6, and 16 denotes a regenerated chemical solution supply pipe connected to the distributor 15. Installed as needed. Reference numerals 17 to 23 denote valves.
次に、長繊維束４を多孔板６に固定する方法について
説明する。Next, a method of fixing the long fiber bundle 4 to the perforated plate 6 will be described.
第２図は、長繊維束４の固定部分の拡大断面図であ
り、図中４は多数本の単繊維の集合体からなる長繊維
束、６は多孔板、また７は長繊維束４を多孔板６に固定
するための固定具をそれぞれ示している。第２図に示し
た長繊維束４は、多数本の単繊維をその下端において接
着剤等で固めて束となすとともに、固めた部分（以下接
合部24という）の中心に挿入孔25を有する構造としてあ
る。FIG. 2 is an enlarged sectional view of a fixed portion of the long fiber bundle 4, in which 4 is a long fiber bundle composed of an aggregate of many single fibers, 6 is a perforated plate, and 7 is a long fiber bundle 4. Fixtures for fixing to the perforated plate 6 are shown. The long fiber bundle 4 shown in FIG. 2 is formed by bundling a large number of single fibers at the lower end thereof with an adhesive or the like, and has an insertion hole 25 at the center of the hardened portion (hereinafter referred to as a joint portion 24). There is a structure.
また、固定具７は上端閉成で下端が開口した筒状体26
と、当該筒状体26の中間部に付設した、多孔板６の孔27
より大径の鍔28とからなるもので、当該鍔28の上方の筒
状体26の側胴部には多数の孔29を貫設してある。当該筒
状体26の径は、前記挿入孔25内および多孔板６の孔27内
に挿入することができるようにこれらの各孔より小径と
し、かつ挿入した際に筒状体26の外側にそれぞれ適当な
隙間S1、S2が形成されるような径としてある。なお、前
記鍔28にはこれらの隙間S1およびS2を連通するごとく、
連通孔30を貫設する。The fixing member 7 is a tubular body 26 having an upper end closed and an open lower end.
And a hole 27 of the perforated plate 6 attached to an intermediate portion of the cylindrical body 26.
A large diameter flange 28 is formed, and a large number of holes 29 are formed in the side trunk portion of the cylindrical body 26 above the flange 28. The diameter of the cylindrical body 26 is smaller than each of these holes so that the cylindrical body 26 can be inserted into the insertion hole 25 and the hole 27 of the perforated plate 6, and when the cylindrical body 26 is inserted, the diameter is outside the cylindrical body 26. The diameters are set so that appropriate gaps S 1 and S 2 are formed. Incidentally, as for communicating these gaps S 1 and S 2 in the flange 28,
The communication hole 30 is provided.
当該固定具７と長繊維束４とは、筒状体26の閉成上端
を、長繊維束４の接合部24に設けた挿入孔25の下部より
差し込んで当該挿入孔25に筒状体26の上部を挿入し、接
合部24の下面と鍔28の上面とを当接した後、接合部24お
よび鍔28をたとえばクランプ31により挟むことによって
固定してあり、更に長繊維束４が固定されている固定具
７と多孔板６とは、筒状体26の開口下端を多孔板６の各
孔27の上部から差し込んで当該孔27に筒状体26の下部を
挿入した後、鍔28によって多孔板６上に係止し、その後
筒状体26の下部に、多孔板６の下方よりナット32をネジ
込むことによって固定してある。The fixing tool 7 and the long fiber bundle 4 are inserted into the insertion hole 25 by inserting the closed upper end of the cylindrical body 26 through the lower part of the insertion hole 25 provided in the joint 24 of the long fiber bundle 4. Is inserted, and the lower surface of the joint portion 24 and the upper surface of the flange 28 are brought into contact with each other. Then, the joint portion 24 and the flange 28 are fixed, for example, by being clamped by a clamp 31, and the long fiber bundle 4 is further fixed. The fixing member 7 and the perforated plate 6 are inserted into the lower end of the opening of the cylindrical body 26 from the upper part of each hole 27 of the perforated plate 6, and the lower part of the cylindrical body 26 is inserted into the hole 27. It is locked on the perforated plate 6 and then fixed to the lower part of the tubular body 26 by screwing a nut 32 from below the perforated plate 6.
当該ナット32には、その周囲、軸方向に複数の連通孔
33を貫設してあり、当該連通孔33、前記隙間S1、鍔28の
連通孔30、および前記隙間S2によって多孔板６の上方の
室と下方の室とが連通されている。また、34は鍔28と多
孔板６との間に介在させたスペーサを示している。The nut 32 has a plurality of communication holes in its periphery and in the axial direction.
33 Yes and penetrated, the communication hole 33, the gap S 1, the communicating hole 30 of the flange 28, and by the gap S 2 and the upper chamber and lower chamber of the porous plate 6 are communicated. Reference numeral 34 denotes a spacer interposed between the flange 28 and the perforated plate 6.
＜作用＞ 以下に本液体処理塔の操作を説明する。<Operation> The operation of the present liquid processing tower will be described below.
原液を処理するに際しては、弁17および弁22を開口し
て原液流入管９より塔本体１内に下降流で原液を流入さ
せる。流入した原液は先ず塔内で立設する長繊維束４か
らなる濾過体５と接触しながら流下し、この間に長繊維
束４で形成する空隙部で原液中の懸濁物が捕捉される。
懸濁物を除去されて清澄となった濾過液は、その一部が
固定具７を構成している筒状体26に設けた孔29から筒状
体26内に入り、次いで当該筒状体26内を通って多孔板６
の下方の室に至り、濾過液の他部は隙間S2、鍔28の連通
孔30、隙間S1、およびナット32の連通孔33を通過して同
じく多孔板６の下方の室に至る。When treating the stock solution, the valve 17 and the valve 22 are opened, and the stock solution is caused to flow downward into the tower body 1 through the stock solution inlet pipe 9. The inflowing stock solution first flows down while being in contact with the filter body 5 composed of the long fiber bundles 4 erected in the tower. During this time, the suspended matter in the stock solution is captured by the void formed by the long fiber bundles 4.
A part of the clarified filtrate from which the suspended matter has been removed enters the cylindrical body 26 through a hole 29 provided in the cylindrical body 26 constituting the fixture 7, and then the cylindrical body 26 perforated plate 6
The other part of the filtrate passes through the gap S 2 , the communication hole 30 of the flange 28, the gap S 1 , and the communication hole 33 of the nut 32, and also reaches the chamber below the porous plate 6.
多孔板６の下方に集液された濾過液は次いで塔内を流
下してイオン交換樹脂２の充填層３と接触し、この際濾
過液中に含まれている特定の溶解性物質あるいはイオン
が、吸着またはイオン交換によってイオン交換樹脂２に
捕捉され、処理液は処理液流出管11から流出する。The filtrate collected below the perforated plate 6 then flows down the column and comes into contact with the packed layer 3 of the ion-exchange resin 2, at which time specific soluble substances or ions contained in the filtrate are removed. The treatment liquid is captured by the ion exchange resin 2 by adsorption or ion exchange, and the treatment liquid flows out of the treatment liquid outlet pipe 11.
このような処理の続行により長繊維束４の空隙部に懸
濁物が多く捕捉されると、濾過体５における圧力損失が
次第に増大し、圧力損失の増大に伴い長繊維束４の下方
部から直立している長繊維束４が屈曲しはじめ、長繊維
束４の直立する高さが次第に減少して行く現象が生ず
る。If a large amount of suspended matter is trapped in the voids of the long fiber bundle 4 due to the continuation of such processing, the pressure loss in the filter body 5 gradually increases, and from the lower part of the long fiber bundle 4 as the pressure loss increases. The upright long fiber bundle 4 begins to bend, and a phenomenon occurs in which the upright height of the long fiber bundle 4 gradually decreases.
イオン交換樹脂２の処理能力がまだ十分に残っている
うちに、前記圧力損失の増大が予め決定してある値とな
った場合には、その時点で弁17および弁22を閉じ、原液
の処理を一旦中断して以下のような濾過体５の逆洗を行
う。When the increase in the pressure loss reaches a predetermined value while the processing capacity of the ion exchange resin 2 is still sufficient, the valves 17 and 22 are closed at that point, and the processing of the undiluted solution is performed. Is temporarily interrupted, and the filter body 5 is backwashed as follows.
すなわち、弁18および弁19を開口して逆洗空気流入管
13から圧縮空気を流入する。That is, the valve 18 and the valve 19 are opened and the backwash air inflow pipe is opened.
Compressed air flows from 13.
多孔板６の下方は濾過液で満たされているので、圧縮
空気の流入によって最初に濾過液が、連通孔33、隙間
S1、連通孔30を経て隙間S2より、あるいは筒状体26の内
部を通って側胴部の各孔29より、多孔板６の上方の室に
流出するが、すぐに多孔板６の下方に第２図に示したご
とく液面Ｌが形成されるとともに当該液面Ｌの上部に圧
縮空気の層Ａが形成される。そして、圧縮空気は液面Ｌ
より上方に位置するナット32の連通孔33を経て隙間S1に
至り、更に連通孔30を経て隙間S2から噴出される。な
お、この時前記液面Ｌが筒状体26の下端開口部よりも上
に位置するように各連通孔33、30および隙間S1、S2の開
口面積を設定しておくとよく、このような構成とするこ
とによって圧縮空気を各固定具７に有する連通孔33に均
等に供給することができる。Since the lower part of the perforated plate 6 is filled with the filtrate, the filtrate first flows through the communication holes 33 and
S 1 , flows out of the gap S 2 through the communication hole 30 or through each hole 29 of the side trunk through the inside of the cylindrical body 26 into the chamber above the perforated plate 6. As shown in FIG. 2, a liquid surface L is formed below, and a layer A of compressed air is formed above the liquid surface L. And the compressed air is at the liquid level L
Reaches the gap S 1 through the communication hole 33 of the nut 32 located more upward, is ejected from the gap S 2 further through the communicating hole 30. At this time, the opening areas of the communication holes 33 and 30 and the gaps S 1 and S 2 may be set so that the liquid level L is located above the lower end opening of the cylindrical body 26. With such a configuration, the compressed air can be evenly supplied to the communication holes 33 of each fixture 7.
当該圧縮空気の流入により、多孔板６の上方の室内の
液が攪拌されるとともに長繊維束４が振動し、繊維間で
形成されていた空隙が破壊されて懸濁物の集合体が破壊
され、また長繊維束４に付着していた懸濁物が剥離され
る。Due to the inflow of the compressed air, the liquid in the chamber above the perforated plate 6 is agitated, and the long fiber bundle 4 vibrates, so that the voids formed between the fibers are broken, and the aggregate of the suspended matter is broken. The suspension adhered to the long fiber bundle 4 is peeled off.
特に圧縮空気を流入する初期の段階で多孔板６の下方
に存在する濾過液が圧縮空気に一気に押し上げられて勢
いの強いピストン流となるので、懸濁物の除去に効果的
である。In particular, at the initial stage of the flow of the compressed air, the filtrate present below the perforated plate 6 is pushed up by the compressed air at a stretch to form a strong piston flow, which is effective for removing suspended matter.
上述した圧縮空気の流入を続行したまま、あるいは弁
19を閉じて圧縮空気の流入を止めた後、弁20を開口して
逆洗水流入管14から逆洗水を流入する。While the above-mentioned flow of compressed air continues,
After closing the 19 and stopping the inflow of the compressed air, the valve 20 is opened to allow the backwash water to flow from the backwash water inflow pipe 14.
流入した逆洗水は主に筒状体26の下端開口部から当該
筒状体26内に入り、次いで当該筒状体26上部の各孔29か
ら流出し、一部はナット32の連通孔33を通って隙間S2か
ら流出する。The backwash water that has flowed into the cylindrical body 26 mainly from the lower end opening of the cylindrical body 26, and then flows out from each hole 29 on the upper part of the cylindrical body 26, and a part of the backwash water flows through the communication hole 33 of the nut 32. through the flowing out from the clearance S 2.
長繊維束４の下端が固定されているとともに、その上
端が自由端となっているので、逆洗水の上昇流により長
繊維束４は吹き流しのようになって伸長するとともに、
各繊維が振動する。したがって、前記圧縮空気の流入に
よるショックによって長繊維束４から離脱した懸濁物は
洗浄水で洗い流され、懸濁物を含む逆洗排水が逆洗排水
流出管10から塔本体１外に流出する。Since the lower end of the long fiber bundle 4 is fixed and the upper end thereof is a free end, the long fiber bundle 4 expands like a stream by the upward flow of the backwash water,
Each fiber vibrates. Therefore, the suspended matter detached from the long fiber bundle 4 by the shock due to the inflow of the compressed air is washed away by the washing water, and the backwash wastewater containing the suspended matter flows out of the backwash wastewater outflow pipe 10 to the outside of the tower body 1. .
本発明に用いる長繊維束４からなる濾過体５は、長繊
維束４の下端が多孔板６に固定されているので、高流速
の逆洗空気や逆洗水を流入しても長繊維束４が塔本体１
外に流出することがない。Since the lower end of the long fiber bundle 4 is fixed to the perforated plate 6, the filter body 5 composed of the long fiber bundle 4 used in the present invention can be used even if high-speed backwash air or backwash water flows in. 4 is the tower body 1
Does not leak out.
したがって、従来の砂やアンスラサイト等の充填材を
用いる濾過方法と比較してより以上の高流速の逆洗空気
あるいは逆洗水を流入することができるとともに、濾過
体５の上方にスクリーン等の障害物が一切付設されてい
ないので、本発明に用いる濾過体は短時間で、かつ効果
的に懸濁物を逆洗により除くことができる。Therefore, it is possible to flow backwash air or backwash water at a higher flow rate than in the conventional filtration method using a filler such as sand or anthracite, and a screen or the like is provided above the filter 5. Since no obstacles are provided, the filter used in the present invention can remove suspended matter by backwashing in a short time and effectively.
以上のような濾過体５の逆洗が終了したら弁18、弁1
9、および弁20を閉じ、弁17および弁22を開口して原液
流入管９から塔本体１内に原液を流入させ、再び前述の
ような原液の処理を続行する。When the backwashing of the filter body 5 as described above is completed, the valve 18 and the valve 1
9 and the valve 20 are closed, and the valves 17 and 22 are opened to allow the stock solution to flow into the tower main body 1 from the stock solution inflow pipe 9, and the processing of the stock solution as described above is continued again.
なお、濾過体５における圧力損失の増大が予め決定し
てある値となるより先に、イオン交換樹脂２の処理能力
が低下した場合には、イオン交換樹脂２の再生を行わな
ければならない。If the treatment capacity of the ion-exchange resin 2 decreases before the increase in pressure loss in the filter body 5 reaches a predetermined value, the ion-exchange resin 2 must be regenerated.
当該再生の方法は使用するイオン交換樹脂の種類によ
って異なるので、それぞれの種類に応じて適宜の再生方
法を採用すればよい。たとえばイオン交換樹脂２に酸や
アルカリ等の薬液を接触させて再生を行う場合は、第１
図において弁21および弁23を開口し、再生薬液供給管16
を介してディストリビュータ15からイオン交換樹脂２の
充填層３上部に再生薬液を供給してイオン交換樹脂２と
接触させ、再生排液はブロー管12から流出させるように
して行えばよい。Since the regeneration method varies depending on the type of the ion exchange resin to be used, an appropriate regeneration method may be adopted according to each type. For example, when regeneration is performed by bringing a chemical such as an acid or an alkali into contact with the ion exchange resin 2, the first
In the figure, the valve 21 and the valve 23 are opened, and the regenerated chemical solution supply pipe 16 is opened.
The regenerating chemical solution may be supplied from the distributor 15 to the upper portion of the packed layer 3 of the ion exchange resin 2 through the distributor 15 so as to be brought into contact with the ion exchange resin 2, and the regenerated drainage may be discharged from the blow pipe 12.
次に、本発明に用いる長繊維束を説明すると、当該長
繊維束としては比較的高流速の原液を下降流で通液して
も、その初期においては長繊維束の下方部がやや屈曲し
てその高さが若干縮み、また通液の続行により下方部の
屈曲部が増加し、次第に長繊維束の直立している高さが
減少していくが、長繊維束が水平状に折れ曲がらず塔内
で通液中においても全体的に直立しているような腰の強
さを有するのもが望ましく、たとえばポリアクリル繊
維、ポリエステル繊維、ポリアミド繊維等の合成繊維、
あるいは綿、羊毛等の天然繊維そのものからなる単繊維
の集合体を用いることができ、更にポリアクリル系、ポ
リアミド系等の合成繊維の素材にイオン交換基を導入し
た公知のイオン交換繊維や、これらの繊維を原料として
公知の方法で賦活して製造された活性炭素繊維からなる
単繊維の集合体を用いることもできる。Next, the long fiber bundle used in the present invention will be described. Even if a relatively high flow rate undiluted solution flows through the long fiber bundle in a downward flow, the lower part of the long fiber bundle is slightly bent in the initial stage. The height of the long fiber bundle decreases slightly, and the height of the bent portion at the lower part increases due to the continuation of the liquid flow.The upright height of the long fiber bundle gradually decreases, but the long fiber bundle is bent horizontally. It is also desirable to have such a stiffness as to stand upright as a whole during the flow in the tower, for example, polyacrylic fiber, polyester fiber, synthetic fiber such as polyamide fiber,
Alternatively, an aggregate of single fibers consisting of natural fibers themselves such as cotton and wool can be used, and further, known ion-exchange fibers obtained by introducing an ion-exchange group into a synthetic fiber material such as polyacryl or polyamide, An aggregate of single fibers consisting of activated carbon fibers produced by activating the above-mentioned fibers as a raw material by a known method can also be used.
なお、長繊維束としてイオン交換繊維や、活性炭素繊
維からなる単繊維の集合体を用いた場合は、当該長繊維
束からなる濾過体において濾過の機能と同時に、イオン
交換機能あるいは吸着機能を併せて発揮させることがで
き、より高度な処理を行うことができて便利である。When an aggregate of single fibers made of an ion exchange fiber or an activated carbon fiber is used as the long fiber bundle, the filtration function of the filter made of the long fiber bundle has both an ion exchange function and an adsorption function. It is convenient because more advanced processing can be performed.
上記単繊維の太さとしては通常１〜80μのものを用
い、また長繊維束の長さとしては通常0.1〜3m、好まし
くは0.2〜1.5mのものを用いるとよい。The thickness of the single fiber is usually 1 to 80 μm, and the length of the long fiber bundle is usually 0.1 to 3 m, preferably 0.2 to 1.5 m.
なお、上述の実施態様では、長繊維束を立設させてな
る濾過体を、イオン交換樹脂充填層の上方に一段だけ形
成した液体処理塔の例について説明したが、本発明にお
いては長繊維束からなる濾過体をイオン交換樹脂充填層
の上方に複数段（通常は２〜３段でよい）縦列に形成て
もよい。その場合は、各濾過体を上段から下段に向かっ
て順次精密な濾過が行えるような構成とし、濾過液の品
質向上と同時に濾過時間の延長が図れるという、いわゆ
る多層濾過の効果が得られるようにする。In the above-described embodiment, the example of the liquid treatment tower in which the filter body in which the long fiber bundle is erected is formed only one stage above the ion exchange resin packed bed has been described. May be formed in a plurality of stages (usually, two or three stages) above the ion-exchange resin packed layer. In such a case, each filter body is configured to be capable of performing precise filtration sequentially from the upper stage to the lower stage, so that the filtration time can be improved and the filtration time can be extended at the same time. I do.
すなわち、本発明に用いる長繊維束からなる濾過体に
おいては、主として長繊維束を構成している単繊維の太
さによって得られる濾過液の品質や圧力損失が変化し、
一般的には単繊維の太さが細いほど濾過液の品質は良好
となるが圧力損失は増大し、そのため濾過時間が短くな
り、一方単繊維の太さが太いほど圧力損失は低下し、濾
過時間も長くなるが逆に濾過液の品質は低下する。した
がって、各濾過体を上段から下段に向かって順次精密な
濾過が行えるような構成とするには、各濾過体ごとに長
繊維束に用いる単繊維の太さを相違させ、かつ下段の濾
過体に至るほど用いる単繊維の太さを細くするとよい。That is, in the filter body composed of the long fiber bundle used in the present invention, the quality and pressure loss of the filtrate obtained mainly by the thickness of the single fiber constituting the long fiber bundle change,
In general, the thinner the single fiber, the better the quality of the filtrate, but the higher the pressure loss, and therefore the shorter the filtration time, while the thicker the single fiber, the lower the pressure loss, The time is longer, but the quality of the filtrate decreases. Therefore, in order to make each filter body capable of performing precise filtration sequentially from the upper stage to the lower stage, the thickness of the single fiber used for the long fiber bundle is changed for each filter unit, and the lower stage filter unit is used. It is preferable that the thickness of the single fiber used is reduced.
なお、上記単繊維の太さ以外の要因、たとえば使用す
る長繊維束の長さや長繊維束の充填密度等の要因の変化
によっても得られる濾過液の品質および圧力損失がある
程度相違し、長繊維束の長さが長いほど、また充填密度
が大なるほど濾過液の品質は良好となるが逆に圧力損失
は増大し、濾過時間が短くなり、一方長繊維束の長さが
短いほど、また充填密度が小なるほど圧力損失は低下
し、濾過時間は長くなるが逆に濾過液の品質は低下す
る。したがって、これらの要因を適宜変化させることに
よって、各濾過体を上段から下段に向かって順次精密な
濾過が行えるような構成としてもよい。It should be noted that the quality and pressure loss of the filtrate obtained also vary to some extent due to changes in factors other than the thickness of the single fiber, such as the length of the long fiber bundle used and the packing density of the long fiber bundle. The longer the length of the bundle and the higher the packing density, the better the quality of the filtrate, but conversely, the pressure loss increases and the filtration time decreases, while the shorter the length of the long fiber bundle, the higher the packing As the density decreases, the pressure loss decreases and the filtration time increases, but the quality of the filtrate decreases. Therefore, by appropriately changing these factors, a configuration may be adopted in which each filter can be sequentially and precisely filtered from the upper stage to the lower stage.
上述した液体処理塔は、イオン交換樹脂充填層の上方
に複数の多孔板を横設して充填層上方の塔内を複数の室
に分割し、各多孔板に長繊維束をそれぞれ立設させるこ
とによって各室内に長繊維束からなる濾過体を形成させ
る構成とすればよく、基本的には第１図に示した液体処
理塔と同じであるので、詳しい説明は省略する。In the above-mentioned liquid treatment tower, a plurality of perforated plates are provided laterally above the ion-exchange resin packed bed, the inside of the tower above the packed bed is divided into a plurality of chambers, and long fiber bundles are erected on each perforated plate. In this case, a filter made of a long fiber bundle may be formed in each chamber. Basically, the filter is the same as the liquid treatment tower shown in FIG.
＜効果＞ 以上説明したごとく、本発明の液体処理塔はイオン交
換樹脂充填層の上方に、長繊維束からなる濾過体を形成
させる構成としたことによって以下のような効果を奏す
る。<Effects> As described above, the liquid processing tower of the present invention has the following effects by adopting a configuration in which a filter body made of a long fiber bundle is formed above the ion-exchange resin packed bed.
一つの装置で前処理としての濾過と、吸着あるいはイ
オン交換の機能を課すことができ、設置面積の低減や設
備コストの低減が図れるのは勿論であるが、長繊維束を
用いる濾過は前述したように装置的に簡素であり、よっ
て前記両機能の複合化による装置的な複雑化を最小限に
止めることができる。Filtration as a pretreatment and the function of adsorption or ion exchange can be imposed by one device, and of course the installation area and equipment cost can be reduced, but the filtration using a long fiber bundle is described above. As described above, the apparatus is simple, so that the apparatus can be kept from being complicated due to the combination of the two functions.
本発明に用いる長繊維束は、前述のごとく長繊維束の
下端を接着剤等で固めることによっていわゆるモジュー
ル状とすることが可能であり、更にこのような長繊維束
全体をたとえば網等の透水性保護具で覆っても差し支え
なく、このようにモジュール状とした場合は多孔板等へ
の取り付けおよび多孔板等からの取り外しが極めて簡単
に行えるようになり、したがって液体処理塔内部の保守
点検を行うことや長繊維束の交換作業等が極めて容易に
なる。The long fiber bundle used in the present invention can be formed into a so-called modular form by solidifying the lower end of the long fiber bundle with an adhesive or the like as described above. If it is made into a module, it can be easily attached to and removed from the perforated plate, etc. It is extremely easy to perform such operations and to exchange long fiber bundles.
更に、イオン交換樹脂充填層の上方に、長繊維束から
なる濾過体を複数段縦列に形成するとともに、各濾過体
を上段から下段に向かって順次精密な濾過が行えるよう
な構成とした場合には、上記効果に加えていわゆる多層
濾過の効果によって濾過液の品質を向上させるとともに
濾過時間を長くできるという、濾過体を一段に設けただ
けでは達成できない新たな作用効果が得られる。Furthermore, when a filter body made of a long fiber bundle is formed in a plurality of stages in tandem above the ion-exchange resin packed layer, and each filter body is configured to be capable of performing precise filtration sequentially from the upper stage to the lower stage. In addition to the above-mentioned effects, a new function and effect can be obtained, in which the quality of the filtrate can be improved and the filtration time can be lengthened by the effect of so-called multilayer filtration, which cannot be achieved only by providing a single filter.
第１図、第２図ともに本発明の実施態様を示すもので、
第１図は本発明の液体処理塔の全体図を示す説明図であ
り、第２図は本発明に用いる長繊維束の固定部分を示す
拡大断面図である。 １…塔本体、２…イオン交換樹脂 ３…充填層、４…長繊維束 ５…濾過体、６…多孔板 ７…固定具、８…座 ９…原液流入管、10…逆洗排水排出管 11…処理液流出管、12…ブロー管 13…逆洗空気流入管、14…逆洗水流入管 15…ディストリビュータ 16…再生薬液供給管、17〜23…弁 24…接合部、25…挿入孔 26…筒状体、27…多孔板の孔 28…鍔、29…孔 30…連通孔、31…クランプ 32…ナット、33…連通孔 34…スペーサ、S1、S2…隙間1 and 2 both show an embodiment of the present invention.
FIG. 1 is an explanatory view showing an overall view of a liquid processing tower of the present invention, and FIG. 2 is an enlarged sectional view showing a fixed portion of a long fiber bundle used in the present invention. DESCRIPTION OF SYMBOLS 1 ... Tower main body 2 ... Ion exchange resin 3 ... Packing layer 4 ... Long fiber bundle 5 ... Filter body, 6 ... Perforated plate 7 ... Fixture, 8 ... Seat 9 ... Stock solution inflow pipe, 10 ... Backwash drainage pipe 11 ... processing liquid outlet pipe, 12 ... blow pipe 13 ... backwash air inlet pipe, 14 ... backwash water inlet pipe 15 ... distributor 16 ... regenerated chemical liquid supply pipe, 17-23 ... valve 24 ... junction, 25 ... insertion hole 26 ... cylindrical body, 27 ... perforated plate holes 28 ... flange, 29 ... holes 30 ... communication hole, 31 ... clamp 32 ... nut 33 ... communication hole 34 ... spacer, S 1, S 2 ... clearance
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B01D 36/00 - 36/04 B01D 15/00 C02F 1/28 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) B01D 36/00-36/04 B01D 15/00 C02F 1/28
Claims (2)
に、当該充填層の上方に単繊維の集合体からなる長繊維
束を立設させてなる濾過体を形成し、当該濾過体の上方
部に原液の流入管を、また前記充填層の下方部に処理液
の流出管をそれぞれ連通した液体処理塔であって、前記
濾過体は、塔内下方のイオン交換樹脂充填層から上方に
間隔を空けた位置に横設した透水性支持体に長繊維束の
下端を固定するとともに、その上端を自由端として塔内
部に長繊維束を立設した構成からなり、当該長繊維束の
上端から下端に向かって下降流で原液を通液することに
よって長繊維束内の空隙部で懸濁物を捕捉するようにな
し、更に前記透水性支持体とその下方のイオン交換樹脂
充填層の間の塔内空間部に、前記透水性支持体上方の長
繊維束濾過体を逆洗洗浄するための逆洗空気及び逆洗水
を流入させる管を接続するとともに、該空間部に、下方
のイオン交換樹脂充填層を再生するための再生薬液を流
入させる管を接続したことを特徴とする液体処理塔。An ion exchange resin is filled in a tower, and a filter is formed by erecting a long fiber bundle composed of a single fiber aggregate above the packed bed, and an upper portion of the filter is formed. A liquid processing tower in which an inflow pipe for a stock solution and an outflow pipe for a processing liquid communicate with each other at a lower portion of the packed bed, wherein the filter body is spaced upward from an ion-exchange resin packed bed below the tower. The lower end of the long fiber bundle is fixed to the permeable support provided horizontally at an empty position, and the long fiber bundle is erected inside the tower with the upper end as a free end. The suspension is trapped in the void portion in the long fiber bundle by passing the undiluted solution in a downward flow toward the column, and further, the column between the water-permeable support and the ion-exchange resin packed layer below the support. Backwash the long fiber bundle filter above the permeable support in the inner space A pipe for flowing backwash air and backwash water for cleaning is connected, and a pipe for flowing a regenerating chemical solution for regenerating a lower ion-exchange resin packed layer is connected to the space. Liquid processing tower.
を立設させてなる濾過体を複数段縦列に形成するととと
もに、各濾過体を上段から下段に向かって順次精密な濾
過が行える構成とした請求項１に記載の液体処理塔。2. A plurality of filter bodies formed by elongating long fiber bundles are formed in a plurality of columns vertically above the ion-exchange resin packed bed, and each filter body can be subjected to precise filtration in order from the upper stage to the lower stage. The liquid treatment tower according to claim 1, wherein the liquid treatment tower is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205762A JP2877845B2 (en) | 1989-08-10 | 1989-08-10 | Liquid treatment tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1205762A JP2877845B2 (en) | 1989-08-10 | 1989-08-10 | Liquid treatment tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0372905A JPH0372905A (en) | 1991-03-28 |
| JP2877845B2 true JP2877845B2 (en) | 1999-04-05 |
Family
ID=16512249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1205762A Expired - Fee Related JP2877845B2 (en) | 1989-08-10 | 1989-08-10 | Liquid treatment tower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2877845B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100330516B1 (en) * | 1999-02-23 | 2002-03-28 | 김영대 | Filtration apparatus having belt press used synthetic fiber thread |
-
1989
- 1989-08-10 JP JP1205762A patent/JP2877845B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0372905A (en) | 1991-03-28 |
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