JPH05168953A - Regeneration of ion exchange membrane and its device - Google Patents
Regeneration of ion exchange membrane and its deviceInfo
- Publication number
- JPH05168953A JPH05168953A JP3336940A JP33694091A JPH05168953A JP H05168953 A JPH05168953 A JP H05168953A JP 3336940 A JP3336940 A JP 3336940A JP 33694091 A JP33694091 A JP 33694091A JP H05168953 A JPH05168953 A JP H05168953A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- exchange resin
- anion
- cation
- mixed
- 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
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、火力発電所や原子力発
電所などにおいて、タービンの復水や補給水などの発電
用水の再生方法およびその装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for regenerating water for power generation such as condensate of turbines and makeup water in thermal power stations and nuclear power stations.
【０００２】[0002]
【従来の技術】火力発電所や原子力発電所における発電
用水は、高温高圧の環境下で使用されることから、ボイ
ラ、タービンなどはスケール生成防止および腐食防止の
ため、高純度の水質が要求される。この発電用水は、ア
ニオン交換樹脂、カチオン交換樹脂を混合状態で装荷し
た混床式脱塩塔に復水を通水することで、復水中に含ま
れる不純物を除去している。2. Description of the Related Art Water for power generation in thermal power plants and nuclear power plants is used under high temperature and high pressure environment, so boilers, turbines, etc. are required to have high purity water quality to prevent scale formation and corrosion. It Condensed water in this power generation water is passed through a mixed bed type desalting tower loaded with an anion exchange resin and a cation exchange resin in a mixed state to remove impurities contained in the condensed water.
【０００３】混床式脱塩塔に使用するイオン交換樹脂
は、一般にはアニオン交換樹脂はＯＨ型が、カチオン交
換樹脂はＨ型が使用されており、これらのイオン交換樹
脂の再生は、両イオン交換樹脂を混床式脱塩塔外に設け
られた再生装置へ移送し、そこで再生する塔外再生方式
が採用されている。また、混床式脱塩塔はイオン交換樹
脂の再生時でも連続浄化運転が可能なよう混床式脱塩塔
数より１バッチ分多いイオン交換樹脂を樹脂貯槽に貯蔵
し、該イオン交換樹脂を混床式脱塩塔に交互に装荷して
いるのが通常である。As the ion exchange resin used in the mixed bed type demineralization tower, the anion exchange resin is generally of the OH type and the cation exchange resin is of the H type. An external regeneration system is adopted in which the exchange resin is transferred to a regeneration device provided outside the mixed bed type demineralization tower and is regenerated there. In addition, the mixed-bed desalting tower stores the ion-exchange resin in a resin storage tank for one batch more than the number of mixed-bed desalting towers so that continuous purification operation can be performed even when the ion-exchange resin is regenerated. The mixed bed desalting towers are usually loaded alternately.
【０００４】このような混床式脱塩装置に使用されるイ
オン交換樹脂の再生は、混床式脱塩塔内のイオン交換樹
脂を分離兼カチオン再生塔に移送し、該カチオン再生塔
内において逆洗分離操作により、イオン交換樹脂をアニ
オン交換樹脂とカチオン交換樹脂の二層に分離し、上層
のアニオン交換樹脂をアニオン再生塔へ移送し、それぞ
れ再生塔において浄化再生さる。カチオン交換樹脂には
塩酸あるいは硫酸などの酸を通液し、アニオン交換樹脂
には苛性ソーダなどのアルカリを通液して再生し、それ
ぞれ洗浄を行なった後に両イオン交換樹脂は前記樹脂貯
槽内で混合され、次の混床式脱塩塔への装荷に備え貯蔵
される。In the regeneration of the ion exchange resin used in such a mixed bed type desalination apparatus, the ion exchange resin in the mixed bed type desalination tower is transferred to a separation / cation regeneration tower, and in the cation regeneration tower. The backwash separation operation separates the ion-exchange resin into two layers, an anion-exchange resin and a cation-exchange resin, and transfers the upper-layer anion-exchange resin to an anion regenerator for purification and regeneration in each regenerator. An acid such as hydrochloric acid or sulfuric acid is passed through the cation exchange resin, and an alkali such as caustic soda is passed through the anion exchange resin for regeneration. After each washing, both ion exchange resins are mixed in the resin storage tank. It is then stored for the next loading of mixed bed desalination tower.
【０００５】そして、次の再生工程を開始するとき、つ
まり使用されていたイオン交換樹脂を再生するために分
離兼カチオン再生塔に移送後に、前記樹脂貯槽に貯蔵さ
れている両イオン交換樹脂を混床式脱塩塔に戻すという
一連の手順を繰り返すことを基本としている。When the next regeneration step is started, that is, after the used ion exchange resin is transferred to the separation / cation regeneration tower, both ion exchange resins stored in the resin storage tank are mixed. The basic procedure is to repeat a series of procedures to return to the floor type desalination tower.
【０００６】前記のように、イオン交換樹脂の再生は両
イオン交換樹脂をアニオン交換樹脂とカチオン交換樹脂
に分離することからはじまる。この分離が完全に行われ
ないまま再生用の薬液が通液されると、分離が不完全な
部分のアニオン交換樹脂は、Ｃｌイオン型の交換基ある
いはＳＯ4イオン型の交換基、または（ＨＳＯ4）2イオ
ン型の交換基を形成し、同様に、分離が不完全な部分の
カチオン交換樹脂は、Ｎａイオン型の交換基を形成し、
逆再生されることになる。この逆再生された樹脂は次式
で示すようにＣｌ陰イオン、ＳＯ4陰イオンまたはＮａ
陽イオン等の有害イオンを生ずる。As mentioned above, the regeneration of the ion exchange resin begins with the separation of both ion exchange resins into anion exchange resin and cation exchange resin. If the regenerating chemical is passed through without complete separation, the anion exchange resin in the incompletely separated portion may have a Cl ion type exchange group or an SO 4 ion type exchange group, or (HSO 4 ) 2 cation type exchange groups are formed, and similarly, the cation exchange resin in the incompletely separated portion forms Na ion type exchange groups,
It will be played in reverse. This reversely regenerated resin has Cl anion, SO 4 anion or Na as shown in the following formula.
It produces harmful ions such as cations.
【０００７】[0007]
【化１】 [Chemical 1]
【０００８】（但し、ＡＲはアニオン交換樹脂母体、Ｃ
Ｒはカチオン交換樹脂母体を示す。）発電用水への上記
有害イオンの微小なリークは、ボイラーやタービンにス
ケールを生成し、腐食の発生等の原因となる。(However, AR is an anion exchange resin matrix, C
R represents a cation exchange resin matrix. ) A minute leak of the above-mentioned harmful ions to the power generation water causes scales in the boiler or turbine, causing corrosion and the like.
【０００９】しかし、水による逆洗分離は、両イオン交
換樹脂の比重差に基づく沈降速度の差を利用して行うも
のであるから、両イオン交換樹脂を完全に分離すること
は容易でなく、アニオン交換樹脂とカチオン交換樹脂と
の間に両イオン交換樹脂の混合層が形成される。However, since the backwash separation with water is carried out by utilizing the difference in the sedimentation rate based on the difference in the specific gravities of both ion exchange resins, it is not easy to completely separate both ion exchange resins, A mixed layer of both ion exchange resins is formed between the anion exchange resin and the cation exchange resin.
【００１０】従って従来は、図４に示すように分離兼カ
チオン再生塔１、アニオン再生塔２と、その他に樹脂貯
槽１３を設備し、再生浄化に使用されたアニオン交換樹
脂とカチオン交換樹脂との混合物を分離兼カチオン再生
塔１に移送し、塔下部から上向きに通水して樹脂層を展
開させる。これにより、両者の比重差を利用してアニオ
ン交換樹脂のみの上層３、アニオン交換樹脂とカチオン
交換樹脂とが混在している中層４、カチオン交換樹脂の
みの下層５の三層に分離する。次に、上層３をアニオン
再生塔２に移送した後、中層４を樹脂貯槽１３に移送す
る。分離兼カチオン再生塔１には下層５を残留させる。
移送は塔下部から移送水を上向きに通水して樹脂層を展
開しながら、塔中部から排出することにより行う。Therefore, conventionally, as shown in FIG. 4, a separation and cation regeneration tower 1, an anion regeneration tower 2 and a resin storage tank 13 are additionally provided so that the anion exchange resin and the cation exchange resin used for regeneration and purification are combined. The mixture is transferred to the separation / cation regeneration tower 1, and water is passed upward from the lower part of the tower to develop the resin layer. As a result, by utilizing the difference in specific gravity between the two, it is separated into three layers, that is, the upper layer 3 containing only the anion exchange resin, the middle layer 4 containing both the anion exchange resin and the cation exchange resin, and the lower layer 5 containing only the cation exchange resin. Next, after transferring the upper layer 3 to the anion regeneration tower 2, the middle layer 4 is transferred to the resin storage tank 13. The lower layer 5 is left in the separation / cation regeneration tower 1.
The transfer is carried out by passing the transferred water upward from the lower part of the tower and discharging the water from the middle part of the tower while developing the resin layer.
【００１１】このようにして分離した後、アニオン再生
塔２および分離兼カチオン再生塔１ではそれぞれの再生
剤を通液して再生する。アニオン再生塔２には苛性ソー
ダ溶液などのアルカリを通液し、分離兼カチオン再生塔
１には塩酸あるいは硫酸などの酸を通液して行い、その
後該液を押出し、水洗を行う。After separation in this way, the anion regeneration tower 2 and the separation / cation regeneration tower 1 pass through the respective regenerants to regenerate. Alkali such as caustic soda solution is passed through the anion regeneration tower 2, and acid such as hydrochloric acid or sulfuric acid is passed through the separation / cation regeneration tower 1, and then the solution is extruded and washed with water.
【００１２】再生を終えたアニオン交換樹脂およびカチ
オン交換樹脂は、先に中層４を収容している樹脂貯槽１
３へ移送し樹脂貯槽１３内で混合して、次回の混床式脱
塩塔への供給に備える。The anion exchange resin and the cation exchange resin that have been regenerated are stored in the resin storage tank 1 containing the intermediate layer 4 in advance.
3 and mix in the resin storage tank 13 to prepare for the next supply to the mixed bed type demineralization tower.
【００１３】前記の従来技術Ｉ（特開昭５８−２１６７
４３号公報）は、中層４のアニオン交換樹脂とカチオン
交換樹脂とが混在する樹脂層を、再生前に樹脂貯槽１３
に取出し、再生処理を施さないことによってイオン交換
樹脂の逆再生を防止している。The above-mentioned prior art I (Japanese Patent Laid-Open No. 58-2167).
No. 43) discloses a resin layer in which the anion exchange resin and the cation exchange resin of the middle layer 4 are mixed before being regenerated.
The ion exchange resin is prevented from being reversely regenerated by taking it out and performing no regeneration treatment.
【００１４】また、別の従来技術ＩＩ（特開昭５９−４
４４６号公報）は、図５に示すように、分離兼カチオン
再生塔１、アニオン再生塔２、樹脂貯槽１３と、さらに
混合樹脂収容タンク１４を設備し、前記従来技術Ｉと同
様の逆洗分離方法でイオン交換樹脂を三層に分離する。
次に、上層３のアニオン交換樹脂をアニオン再生塔２に
移送した後、中層４のアニオン交換樹脂とカチオン交換
樹脂との混合樹脂を混合樹脂収容タンク１４に収容し、
分離兼カチオン再生塔１には下層５のカチオン交換樹脂
を残留させる。Another prior art II (Japanese Patent Laid-Open No. 59-4)
No. 446), as shown in FIG. 5, a separation and cation regeneration tower 1, an anion regeneration tower 2, a resin storage tank 13, and a mixed resin storage tank 14 are further installed, and a backwash separation similar to the prior art I is performed. The ion exchange resin is separated into three layers by the method.
Next, after transferring the anion exchange resin of the upper layer 3 to the anion regeneration tower 2, the mixed resin of the anion exchange resin and the cation exchange resin of the middle layer 4 is stored in the mixed resin storage tank 14,
The cation exchange resin of the lower layer 5 is left in the separation / cation regeneration tower 1.
【００１５】次に、アニオン再生塔２、分離兼カチオン
再生塔１にそれぞれの再生剤を通液して再生を行い、水
洗後のカチオン交換樹脂、アニオン交換樹脂および樹脂
収容タンク１４内の未再生処理樹脂をそれぞれ樹脂貯槽
１３へ移送する。該樹脂貯槽１３へ移送した後の取扱い
は、前記従来技術Ｉと同様である。Next, each regenerant is passed through the anion regenerator 2 and the separation / cation regenerator 1 to regenerate the cation exchange resin, the anion exchange resin and the resin storage tank 14 which has not been regenerated after washing with water. The treated resins are transferred to the resin storage tanks 13, respectively. The handling after transfer to the resin storage tank 13 is the same as in the prior art I.
【００１６】このように従来技術IIは、中層４のアニオ
ン交換樹脂とカチオン交換樹脂との混在イオン交換樹脂
を再生前に混合樹脂収容タンク１４に取出し、この混在
イオン交換樹脂を再生処理しないことで、当該イオン交
換樹脂の逆再生を防止している。As described above, according to the conventional technique II, the mixed ion exchange resin of the anion exchange resin and the cation exchange resin of the middle layer 4 is taken out to the mixed resin storage tank 14 before the regeneration, and the mixed ion exchange resin is not regenerated. The reverse regeneration of the ion exchange resin is prevented.
【００１７】また、図６に示す従来技術III（特開昭５
５−２０６３６号公報）では、分離兼カチオン再生塔
１、アニオン再生塔２および樹脂貯槽１３を設備し、従
来技術Ｉと同様の逆洗分離方法でイオン交換樹脂を分離
兼カチオン再生塔１内で三層に分離する。次に、上層３
のアニオン交換樹脂と中層４の混合樹脂をアニオン再生
塔２に移送した後、分離兼カチオン再生塔内に残留した
カチオン交換樹脂５を再生する。一方、アニオン再生塔
２では、再度逆洗分離を行い。その結果、アニオン交換
樹脂の上層、アニオン交換樹脂とカチオン交換樹脂との
混合樹脂の中層、カチオン交換樹脂の下層と分離する
が、該アニオン再生塔２はアニオン交換樹脂層より下に
再生液が接触しないような通液構造を有しており、これ
によりアニオン交換樹脂のみ再生を行う。Further, the prior art III shown in FIG.
5-20636), a separation and cation regeneration tower 1, an anion regeneration tower 2 and a resin storage tank 13 are installed, and an ion exchange resin is separated and cation regenerated in the cation regeneration tower 1 by the same backwash separation method as in the conventional technique I. Separate into three layers. Next, upper layer 3
After the mixed resin of the anion exchange resin and the intermediate layer 4 is transferred to the anion regeneration tower 2, the cation exchange resin 5 remaining in the separation / cation regeneration tower is regenerated. On the other hand, in the anion regeneration tower 2, backwash separation was performed again. As a result, the upper layer of the anion exchange resin, the middle layer of the mixed resin of the anion exchange resin and the cation exchange resin, and the lower layer of the cation exchange resin are separated, but in the anion regeneration tower 2, the regenerant is contacted below the anion exchange resin layer. It has a liquid-passing structure that does not allow it to regenerate only the anion exchange resin.
【００１８】再生後は、分離兼カチオン再生塔１内のカ
チオン交換樹脂、アニオン再生塔２内のアニオン交換樹
脂をそれぞれ樹脂貯槽１３へ移送する。樹脂貯槽１３へ
移送後は、従来技術Ｉと同様の方法である。なお、アニ
オン再生塔２内の中層の混合樹脂、並びにカチオン交換
樹脂は分離兼カチオン再生塔１へ戻し、混床式脱塩塔か
ら移送されて来る次の使用済みイオン交換樹脂と一緒に
前記と同様にして再生を繰り返す。After the regeneration, the cation exchange resin in the separation / cation regeneration tower 1 and the anion exchange resin in the anion regeneration tower 2 are transferred to the resin storage tank 13, respectively. After the transfer to the resin storage tank 13, the method is the same as the conventional technique I. The mixed resin in the middle layer in the anion regeneration tower 2 and the cation exchange resin are returned to the separation / cation regeneration tower 1 and the above-mentioned together with the next used ion exchange resin transferred from the mixed bed type desalination tower. The reproduction is repeated in the same manner.
【００１９】[0019]
【発明が解決しようとする課題】前記の従来技術Ｉは、
中層のアニオン樹脂とカチオン樹脂との混合樹脂の逆再
生を防止する上では有効な技術と考えられる。The above-mentioned prior art I is
It is considered to be an effective technique for preventing reverse regeneration of the mixed resin of the anion resin and the cation resin in the middle layer.
【００２０】しかし、いずれの従来技術も、イオン交換
樹脂の再生時においても復水等の浄化処理の連続運転が
可能なように、混床式脱塩塔数より１バッチ分以上の樹
脂を貯蔵しておく必要があることから、再生処理を行な
う塔以外に樹脂貯槽を設備する必要があった。However, in any of the conventional techniques, one batch or more of resin is stored from the number of mixed bed type demineralization towers so that continuous operation of purification treatment such as condensate can be performed even when the ion exchange resin is regenerated. Therefore, it was necessary to install a resin storage tank in addition to the tower for carrying out the regeneration treatment.
【００２１】また、従来技術IIは、中層４の混合樹脂
を、アニオン交換樹脂の上層３とカチオン交換樹脂５の
下層とから分離し、一時保管用の混合樹脂収容タンク１
４を設備しているため再生装置の規模が大きくなり、か
つ、イオン交換樹脂の移送操作が複雑となっていた。In the prior art II, the mixed resin of the middle layer 4 is separated from the upper layer 3 of the anion exchange resin and the lower layer of the cation exchange resin 5, and the mixed resin storage tank 1 for temporary storage is provided.
Since the equipment of No. 4 is installed, the scale of the regenerator becomes large and the operation of transferring the ion exchange resin becomes complicated.
【００２２】従来技術IIIは、中層の混合樹脂を、アニ
オン交換樹脂と一緒に再生塔へ移送し、そこでアニオン
交換樹脂の下部に存在させたまま再生処理するため、逆
再生の生じる可能性があり、そのため逆洗分離工程を複
数回行なう必要があり、また、更生にアニオン交換樹脂
の再生液を混合樹脂層に接触させない塔内構造と通液方
法をとる必要があり複雑であった。In the prior art III, the mixed resin in the middle layer is transferred to the regeneration tower together with the anion exchange resin, and the regeneration treatment is performed while it is present below the anion exchange resin, so that there is a possibility of reverse regeneration. Therefore, it is necessary to perform the backwash separation step a plurality of times, and it is necessary to adopt a structure in the tower and a liquid passage method in which the regenerated liquid of the anion exchange resin is not brought into contact with the mixed resin layer for rehabilitation, which is complicated.
【００２３】本発明の目的は、従来より簡易な方法でア
ニオン交換樹脂とカチオン交換樹脂との混合樹脂の逆再
生を確実に防止する方法を提供することにある。An object of the present invention is to provide a method for surely preventing reverse regeneration of a mixed resin of an anion exchange resin and a cation exchange resin by a simpler method than before.
【００２４】また、本発明の他の目的は、上記装置を提
供することにある。Another object of the present invention is to provide the above device.
【００２５】[0025]
【課題を解決するための手段】前記課題を解決する本発
明の要旨は次のとおりである。The gist of the present invention for solving the above problems is as follows.
【００２６】（１）水の混床式脱塩装置に装荷されたイ
オン交換樹脂の再生方法であって、前記混床式脱塩装置
で使用されたイオン交換樹脂を分離兼カチオン再生塔内
で比重差を利用して逆洗分離し、上層にアニオン交換樹
脂、中層にアニオンとカチオンの交換樹脂の混合樹脂お
よび下層にカチオン交換樹脂の順に三層に分離し、前記
上層のアニオン交換樹脂をアニオン再生塔に移送して該
塔内で再生処理した後、中層の混合樹脂層を該アニオン
再生塔に収容し、分離兼カチオン再生塔に残した下層の
カチオン交換樹脂を再生処理後混床式脱塩塔に返送し、
前記再生済のアニオン交換樹脂と未再生の混合樹脂をア
ニオン再生塔から混床式脱塩塔に返送し、混床式脱塩塔
への返送が完了後、該混床式脱塩塔内で混合することを
特徴とするイオン交換樹脂の再生方法。(1) A method for regenerating an ion exchange resin loaded in a mixed bed type desalination apparatus for water, wherein the ion exchange resin used in the mixed bed type desalination apparatus is separated and in a cation regeneration tower. Backwash separation using the difference in specific gravity, anion exchange resin in the upper layer, a mixed resin of anion and cation exchange resin in the middle layer and a cation exchange resin in the lower layer are separated into three layers in this order, the anion exchange resin of the upper layer anion After being transferred to the regeneration tower and regenerated in the tower, the mixed resin layer of the middle layer is housed in the anion regeneration tower, and the cation exchange resin of the lower layer left in the separation / cation regeneration tower is regenerated and mixed bed type desorption is performed. Return to the salt tower,
The regenerated anion exchange resin and the unregenerated mixed resin are returned from the anion regeneration tower to the mixed-bed desalting tower, and after the return to the mixed-bed desalting tower is completed, in the mixed-bed desalting tower. A method for regenerating an ion exchange resin, which comprises mixing.
【００２７】（２）水の混床式脱塩装置に装荷されたイ
オン交換樹脂の再生装置であって、前記イオン交換樹脂
の分離兼カチオン再生塔とアニオン再生塔とから成り、
前記分離兼カチオン再生塔は分離後のカチオン樹脂とア
ニオン樹脂との混合樹脂およびアニオン樹脂とをそれぞ
れアニオン再生塔へ移送する移送手段を備えており、前
記分離兼カチオン再生塔とアニオン再生塔は再生後の樹
脂を混床式脱塩塔へ返送する返送手段を備えていること
を特徴とするイオン交換樹脂の再生装置。(2) An ion-exchange resin regenerator loaded in a water mixed-bed desalting apparatus, which comprises a cation regenerator and a cation regenerator for separating and separating the ion-exchange resin,
The separation / cation regeneration tower is equipped with transfer means for respectively transferring the mixed resin of the cation resin and anion resin and the anion resin after separation to the anion regeneration tower, and the separation / cation regeneration tower and the anion regeneration tower are regenerated. An ion-exchange resin regenerating apparatus comprising return means for returning the resin afterwards to a mixed bed type desalting tower.
【００２８】比重差を利用してアニオン交換樹脂のみの
上層、アニオン交換樹脂とカチオン交換樹脂とが混在し
ている中層、カチオン交換樹脂のみの下層の三層に成層
分離できる。By utilizing the difference in specific gravities, stratification can be carried out into three layers: an upper layer containing only anion exchange resin, a middle layer containing both anion exchange resin and cation exchange resin, and a lower layer containing only cation exchange resin.
【００２９】カチオン交換樹脂を再生する分離兼カチオ
ン再生塔と、この分離兼カチオン再生塔に接続されアニ
オン交換樹脂の上層の丁度下部に開口したアニオン交換
樹脂の移送管と、カチオン交換樹脂の下層の丁度上部に
開口したアニオンとカチオンの交換樹脂とが混在してい
る混合樹脂の中層の移送管と、カチオン交換樹脂の下層
の下に開口したカチオン交換樹脂の移送管を設け、ま
ず、初めにアニオン交換樹脂のみアニオン交換樹脂移送
管を介してアニオン再生塔へ移送し、再生剤通液手段に
よってアニオン交換樹脂を再生処理する。A separation / cation regeneration tower for regenerating the cation exchange resin, an anion exchange resin transfer pipe connected to the separation / cation regeneration tower and opened just below the upper layer of the anion exchange resin, and a lower layer of the cation exchange resin. An intermediate layer transfer tube for the mixed resin, in which the anion and cation exchange resins are just opened, and an opening for the cation exchange resin, which is opened under the lower layer of the cation exchange resin, are provided. Only the exchange resin is transferred to the anion regeneration tower through the anion exchange resin transfer pipe, and the anion exchange resin is regenerated by the regenerant liquid passing means.
【００３０】次いで、分離兼カチオン再生塔に残してお
いた混合イオン交換樹脂を該樹脂移送管を介してアニオ
ン再生塔へ移送収容する。Next, the mixed ion-exchange resin left in the separation / cation regeneration tower is transferred to the anion regeneration tower via the resin transfer pipe and stored therein.
【００３１】一方、カチオン交換樹脂のみを残した分離
兼カチオン再生塔に再生剤通液手段によって再生剤を通
液してカチオン交換樹脂を再生処理し、カチオン樹脂移
送管を介して前記アニオン交換樹脂塔へ移送する。On the other hand, the cation exchange resin is regenerated by passing the regenerant through the regenerant passage means into the separation and cation regeneration tower where only the cation exchange resin remains, and the anion exchange resin is passed through the cation resin transfer pipe. Transfer to the tower.
【００３２】前記アニオン再生塔内に収容した全イオン
交換樹脂を該再生塔内で混合し貯蔵する。この段階では
分離兼カチオン再生塔内には、イオン交換樹脂は存在し
ないので、次の再生対象となるイオン交換樹脂の受入れ
が可能であり、また、アニオン再生塔内には次の混床式
脱塩塔に提供可能なイオン交換樹脂が貯蔵されている。
この結果、本発明では従来必要であった樹脂貯槽の設置
が不要となった。All the ion-exchange resins contained in the anion regeneration tower are mixed and stored in the regeneration tower. At this stage, since the ion exchange resin does not exist in the separation / cation regeneration tower, it is possible to receive the ion exchange resin to be regenerated next time. The ion exchange resin that can be provided to the salt tower is stored.
As a result, the present invention eliminates the need for installing a resin storage tank, which was required in the past.
【００３３】また、本発明においては、各再生剤の通液
は塔内に中層の混合交換樹脂を保有している際には行わ
ないので、該混合樹脂は再生剤に接触する機会は無く、
確実に逆再生を防止することができる。また、従来必要
であった混合樹脂の貯槽も全く不要である。Further, in the present invention, since the passage of each regenerant is not carried out when the middle layer of the mixed exchange resin is held in the tower, there is no opportunity for the mixed resin to come into contact with the regenerant.
Reverse playback can be reliably prevented. Further, the storage tank for the mixed resin, which was required in the past, is completely unnecessary.
【００３４】再生後のイオン交換樹脂を混床式脱塩装置
への装荷は、前記分離兼カチオン再生塔からカチオン樹
脂をまた、アニオン再生塔から前記混合樹脂並びにアニ
オン樹脂をそれぞれの移送手段により直接移送し、混床
式脱塩装置内で混合してもよい。また、一旦、アニオン
再生塔または分離兼カチオン再生塔に全イオン交換を集
めてから混合した後、混床式脱塩装置に装荷してもよ
い。The ion-exchange resin after regeneration is loaded into the mixed-bed desalination apparatus by directly transferring the cation resin from the separation / cation regeneration tower and the mixed resin and anion resin from the anion regeneration tower, respectively. It may be transferred and mixed in a mixed bed desalination apparatus. Alternatively, all the ion exchanges may be once collected in the anion regeneration tower or the separation / cation regeneration tower and then mixed, and then loaded in the mixed bed desalting apparatus.
【００３５】[0035]
【作用】有害イオンが処理水中にリークすることが無い
のは、イオン交換樹脂の再生において、アニオン交換樹
脂、カチオン交換樹脂および両者の混合樹脂の分離を完
全に行ない、特に、上記混合樹脂が再生薬剤に接触しな
いようにしたことにより逆再生を確実に防止した点にあ
る。The harmful ions do not leak into the treated water because the anion exchange resin, the cation exchange resin and the mixed resin of the two are completely separated when the ion exchange resin is regenerated. The point is that reverse regeneration is reliably prevented by preventing contact with the drug.
【００３６】また、従来の混合樹脂収容タンクや樹脂貯
槽が不要となリ装置のシンプル化を図ることができたの
は、アニオン再生塔または分離兼カチオン再生塔に再
生、混合機能の他に貯蔵機能を持たせたことにある。Further, the re-equipment, which does not require the conventional mixed resin storage tank or resin storage tank, can be simplified by regenerating in the anion regenerator or the separation / cation regenerator and storing in addition to the mixing function. It has a function.
【００３７】[0037]
【実施例】本発明の一実施例を図を用いて説明する。Embodiment An embodiment of the present invention will be described with reference to the drawings.
【００３８】〔実施例２〕図１は本発明の装置を示す模
式図である。分離兼カチオン再生塔１とアニオン再生塔
２とから構成され、両者はアニオン樹脂移送管６、混合
樹脂移送管７、カチオン交換樹脂移送管８で連結されて
いる。[Embodiment 2] FIG. 1 is a schematic view showing an apparatus of the present invention. It is composed of a separation and cation regeneration tower 1 and an anion regeneration tower 2, which are connected by an anion resin transfer pipe 6, a mixed resin transfer pipe 7 and a cation exchange resin transfer pipe 8.
【００３９】従来の装置では、前記移送管の少なくとも
１本は樹脂貯槽などに配管されていたが、本実施例で
は、全てアニオン再生塔２に連結したことが特徴であ
る。In the conventional apparatus, at least one of the transfer pipes was connected to a resin storage tank or the like, but this embodiment is characterized in that all of them are connected to the anion regeneration tower 2.
【００４０】アニオン再生塔２には混床式脱塩塔（図示
せず）へのイオン交換樹脂を返送する返送管１０、イオ
ン交換樹脂の混合のための空気供給管と洗浄水供給管が
接続されている。The anion regeneration tower 2 is connected with a return pipe 10 for returning the ion exchange resin to a mixed bed type desalting tower (not shown), an air supply pipe for mixing the ion exchange resin and a washing water supply pipe. Has been done.
【００４１】再生は、まず混床式脱塩塔で使用済みのイ
オン交換樹脂を分離兼カチオン再生塔１に移送し、該再
生塔１の塔下部から上向に流水を通水して樹脂を展開さ
せ、アニオン交換樹脂とカチオン交換樹脂の比重差を利
用して逆洗分離し、上層３（アニオン交換樹脂）、中層
４（混合樹脂）、および下層５（カチオン交換樹脂）の
三層に分離する。ここまでは、従来のものと同様であ
る。In the regeneration, first, the ion exchange resin used in the mixed bed type demineralization tower is transferred to the separation / cation regeneration tower 1, and running water is passed upward from the lower part of the regeneration tower 1 to remove the resin. It is developed and backwashed by utilizing the difference in specific gravity between anion exchange resin and cation exchange resin, and separated into three layers of upper layer 3 (anion exchange resin), middle layer 4 (mixed resin), and lower layer 5 (cation exchange resin). To do. Up to this point, it is the same as the conventional one.
【００４２】次に、上層３のみをアニオン樹脂移送管６
を介してアニオン再生塔２に移送し、該樹脂再生液、例
えば、か性ソーダなどのアルカリ再生剤を通液手段１２
から通液してアニオン交換樹脂を再生処理する。その
後、不用となった再生剤を水で押出し、洗浄する。この
とき分離兼カチオン再生塔１には上層３の一部残留樹脂
と、中層４および下層５の各樹脂が保有されている。Next, only the upper layer 3 is anion resin transfer pipe 6
The resin regenerant, for example, an alkali regenerant such as caustic soda is passed through the anion regenerator 2 through the liquid-passing means 12
The anion exchange resin is regenerated by passing the solution through. Then, the waste regenerant is extruded with water and washed. At this time, the separation / cation regeneration tower 1 retains a part of the residual resin in the upper layer 3 and the resins in the intermediate layer 4 and the lower layer 5.
【００４３】前記再生塔１内のこれらの樹脂は、従来は
樹脂貯槽あるいは混合樹脂収容タンクを設けて移送収容
していたが、本発明では上記再生塔１の最下部から通水
して樹脂層を展開しながら、混合樹脂移送管７を介して
上層３の残留樹脂と中層４の混合樹脂とをアニオン再生
塔２に移送する。これによって下層５のカチオン交換樹
脂のみが再生塔１内に残る。該再生塔１内に残ったカチ
オン交換樹脂は、再生剤、例えば、塩酸あるいは硫酸な
どの酸の再生剤を通液手段１１から通液して再生処理す
る。その後、不用となった再生剤を水で押出し、洗浄す
る。Conventionally, these resins in the regeneration tower 1 were transferred and stored by providing a resin storage tank or a mixed resin storage tank, but in the present invention, water is passed from the bottom of the regeneration tower 1 to form a resin layer. While developing, the residual resin of the upper layer 3 and the mixed resin of the intermediate layer 4 are transferred to the anion regeneration tower 2 through the mixed resin transfer pipe 7. As a result, only the cation exchange resin of the lower layer 5 remains in the regeneration tower 1. The cation exchange resin remaining in the regeneration tower 1 is regenerated by passing a regenerant, for example, an acid regenerant such as hydrochloric acid or sulfuric acid from the liquid passage means 11. Then, the waste regenerant is extruded with water and washed.
【００４４】再生されたカチオン交換樹脂は、移送管８
を介してアニオン再生塔２へ移送する。この移送は塔上
部から移送水を流して樹脂層を展開しながら加圧し、移
送管８から排出して行う。The regenerated cation exchange resin is transferred to the transfer pipe 8.
And is transferred to the anion regeneration tower 2 via. This transfer is performed by flowing the transfer water from the upper part of the tower to apply pressure while developing the resin layer, and discharging from the transfer pipe 8.
【００４５】なお、各樹脂の移送管６，７および８は、
図１に示すように三層に分離された各層３，４および５
の各底部に取付けるのがよい。The transfer tubes 6, 7 and 8 for each resin are
Each layer 3, 4 and 5 separated into three layers as shown in FIG.
It is better to attach it to each bottom of the.
【００４６】前記の各操作によりアニオン再生塔２に
は、全てのイオン交換樹脂が保有されることになり、該
再生塔２でこれらの樹脂を混合、洗浄し、次の混床式脱
塩塔に提供するまで貯蔵する。なお、本実施例において
は、分離兼カチオン再生塔１内にはイオン交換樹脂が存
在していないので、次の再生対象となるイオン交換樹脂
の受入れが可能である。By the above-mentioned operations, all the ion-exchange resins are held in the anion regeneration tower 2. These resins are mixed and washed in the regeneration tower 2, and the next mixed bed type desalting tower is used. Store until served. In this example, since the ion exchange resin does not exist in the separation / cation regeneration tower 1, it is possible to receive the ion exchange resin to be regenerated next.
【００４７】〔実施例２〕本発明の他の実施例として、
混床式脱塩塔より１バッチ分多く樹脂を貯蔵する必要の
ない場合について、図２を用いて説明する。[Embodiment 2] As another embodiment of the present invention,
The case where it is not necessary to store the resin for one batch more than in the mixed bed desalting tower will be described with reference to FIG.
【００４８】カチオン交換樹脂の再生完了までの操作方
法は、前記実施例１と同様に行う。次いで、前記実施例
１ではイオン交換樹脂の混合をアニオン再生塔２内で行
い、貯蔵し、混床式脱塩塔へ混合樹脂を返送した。The operation method until the regeneration of the cation exchange resin is completed is the same as in Example 1 above. Next, in Example 1, the ion exchange resin was mixed in the anion regeneration tower 2, stored, and the mixed resin was returned to the mixed bed desalting tower.
【００４９】本実施例では、再生済のカチオン交換樹脂
を保有している分離兼再生塔１に、再生塔２の再生済み
アニオン交換樹脂と未処理の混合樹脂とを返送管１７を
介して戻し、再生塔１内で全イオン交換樹脂の混合を行
い、該再生塔１から混床式脱塩塔へ返送管１０を介して
直ちに返送した。In this embodiment, the regenerated anion exchange resin and the untreated mixed resin in the regeneration tower 2 are returned to the separation / regeneration tower 1 containing the regenerated cation exchange resin via the return pipe 17. Then, all the ion exchange resins were mixed in the regeneration tower 1 and immediately returned from the regeneration tower 1 to the mixed bed type desalination tower via the return pipe 10.
【００５０】〔実施例３〕本発明の他の実施例を図３を
用いて説明する。[Embodiment 3] Another embodiment of the present invention will be described with reference to FIG.
【００５１】本実施例３は、再生済のアニオン交換樹脂
と未処理の混合樹脂を、再生済のカチオン交換樹脂を保
有している分離兼カチオン再生塔１へ戻さず、アニオン
再生塔２から返送管２０を介して混床式脱塩塔へ直接返
送し、再生済のカチオン交換樹脂も分離兼カチオン再生
塔１から返送管１９を介して混床式脱塩塔へ直接返送す
る方法をとった。In Example 3, the regenerated anion exchange resin and the untreated mixed resin were returned from the anion regeneration tower 2 without returning to the separation / cation regeneration tower 1 having the regenerated cation exchange resin. A method was used in which it was directly returned to the mixed bed type demineralization tower via the pipe 20, and the regenerated cation exchange resin was also separated and also returned from the cation regeneration tower 1 via the return pipe 19 to the mixed bed type demineralization tower. ..
【００５２】なお、イオン交換樹脂の混合は、混床式脱
塩塔へ全イオン交換樹脂を返送装荷後、該脱塩塔内で行
った。The ion-exchange resin was mixed in the desalting tower after all the ion-exchange resins were returned to the mixed bed desalting tower.
【００５３】[0053]
【発明の効果】本発明は、使用済みイオン交換樹脂を分
離兼カチオン再生塔１でアニオン交換樹脂層３、カチオ
ン交換樹脂層５および両者の混合樹脂層４の三層に逆洗
分離し、前記脂層３の再生時には樹脂層４を分離兼カチ
オン再生塔１に隔離した状態で再生塔２で再生処理し、
カチオン交換樹脂５の再生時には、混合樹脂層４をアニ
オン再生塔２に移送して隔離した状態で再生処理するた
め、逆再生されることがないので、復水の浄化処理時に
有害イオンのリークを確実に防止できる。According to the present invention, the used ion exchange resin is backwashed and separated into three layers of the anion exchange resin layer 3, the cation exchange resin layer 5 and the mixed resin layer 4 of both in the separation and cation regeneration tower 1, At the time of regenerating the fat layer 3, the resin layer 4 is regenerated in the regenerating tower 2 while being separated and separated in the cation regenerating tower 1,
When the cation exchange resin 5 is regenerated, the mixed resin layer 4 is transferred to the anion regeneration tower 2 and is regenerated in an isolated state, so that it is not reversely regenerated. It can be surely prevented.
【００５４】また、本発明は従来設置されていた樹脂貯
槽、混合樹脂収容タンクを必要としないので経済的であ
り、かつ、再生装置の設置スペースを省力化できる。Further, the present invention is economical because it does not require the resin storage tank and the mixed resin storage tank which have been conventionally installed, and the installation space of the reproducing apparatus can be saved.
【図１】実施例１の再生装置の模式系統図である。FIG. 1 is a schematic system diagram of a reproducing device according to a first embodiment.
【図２】実施例２の再生装置の模式系統図である。FIG. 2 is a schematic system diagram of a reproducing device according to a second embodiment.
【図３】実施例３の再生装置の模式系統図である。FIG. 3 is a schematic system diagram of a reproducing apparatus according to a third embodiment.
【図４】従来例Ｉの再生装置の模式系統図である。FIG. 4 is a schematic system diagram of a reproducing apparatus of Conventional Example I.
【図５】従来例IIの再生装置の模式系統図である。FIG. 5 is a schematic system diagram of a reproducing apparatus of Conventional Example II.
【図６】従来例IIIの再生装置の模式系統図である。FIG. 6 is a schematic system diagram of a reproducing apparatus of Conventional Example III.
１…分離兼カチオン再生塔、２…アニオン再生塔、３…
アニオン交換樹脂層、４…混合樹脂層、５…カチオン交
換樹脂層、６…アニオン樹脂移送管、７…混合樹脂移送
管、８…カチオン樹脂移送管、９…使用済みイオン交換
樹脂受入管、１０…イオン交換樹脂返送管、１１…酸再
生剤通液手段、１２…アルカリ再生剤通液手段、１３…
樹脂貯槽、１４…混合樹脂収容タンク、１５…コレク
タ、１６…カチオン樹脂と混合樹脂との移送管、１７…
アニオン樹脂と混合樹脂との返送管、１８…逆洗水管、
１９…カチオン樹脂返送管、２０…アニオン樹脂と混合
樹脂との返送管、２１…アニオン樹脂と混合樹脂の移送
管。1 ... Separation and cation regeneration tower, 2 ... Anion regeneration tower, 3 ...
Anion exchange resin layer, 4 ... Mixed resin layer, 5 ... Cation exchange resin layer, 6 ... Anion resin transfer tube, 7 ... Mixed resin transfer tube, 8 ... Cation resin transfer tube, 9 ... Used ion exchange resin receiving tube, 10 ... Ion exchange resin return pipe, 11 ... Acid regenerant liquid passing means, 12 ... Alkaline regenerant liquid passing means, 13 ...
Resin storage tank, 14 ... Mixed resin storage tank, 15 ... Collector, 16 ... Transfer pipe for cationic resin and mixed resin, 17 ...
Return pipe of anion resin and mixed resin, 18 ... Backwash water pipe,
19 ... Cation resin return pipe, 20 ... Anion resin and mixed resin return pipe, 21 ... Anion resin and mixed resin transfer pipe
Claims (8)
換樹脂の再生方法であって、前記混床式脱塩装置で使用
されたイオン交換樹脂を分離兼カチオン再生塔内で比重
差を利用して逆洗分離し、上層にアニオン交換樹脂、中
層にアニオンとカチオンの交換樹脂の混合樹脂および下
層にカチオン交換樹脂の順に三層に分離し、前記上層の
アニオン交換樹脂をアニオン再生塔に移送して該塔内で
再生処理した後、中層の混合樹脂層を該アニオン再生塔
に収容し、分離兼カチオン再生塔に残した下層のカチオ
ン交換樹脂を再生処理後混床式脱塩塔に返送し、前記再
生済のアニオン交換樹脂と未再生の混合樹脂をアニオン
再生塔から混床式脱塩塔に返送し、混床式脱塩塔への返
送が完了後、該混床式脱塩塔内で混合することを特徴と
するイオン交換樹脂の再生方法。1. A method for regenerating an ion exchange resin loaded in a mixed bed desalination apparatus for water, wherein the ion exchange resin used in the mixed bed desalination apparatus is separated and has a specific gravity in a cation regeneration tower. Backwash separation using the difference, separating into three layers, anion exchange resin in the upper layer, mixed resin of anion and cation exchange resin in the middle layer, and cation exchange resin in the lower layer, and anion exchange resin in the upper layer. After being transferred to a tower and regenerated in the tower, the mixed resin layer of the middle layer is housed in the anion regeneration tower, and the lower layer cation exchange resin left in the separation / cation regeneration tower is regenerated and mixed bed type desalination Returned to the tower, the regenerated anion exchange resin and the unregenerated mixed resin from the anion regeneration tower to the mixed bed type desalination tower, after the return to the mixed bed type desalination tower, the mixed bed type Ion-exchange tree characterized by mixing in a desalting tower The method of reproduction.
換樹脂の再生方法であって、前記混床式脱塩装置で使用
されたイオン交換樹脂を分離兼カチオン再生塔内で比重
差を利用して逆洗分離し、上層にアニオン交換樹脂、中
層にアニオンとカチオンの交換樹脂の混合樹脂および下
層にカチオン交換樹脂の順に三層に分離し、前記上層の
アニオン交換樹脂はアニオン再生塔に移送して該塔内で
再生処理した後、中層の混合樹脂を該アニオン再生塔に
収容し、分離兼カチオン再生塔に残した下層のカチオン
交換樹脂を該塔内で再生処理後、該カチオン交換樹脂を
前記アニオン再生塔へ移送して、前記再生済みアニオン
交換樹脂と未再生の前記混合樹脂と混合し、混床式脱塩
装置に返送することを特徴とするイオン交換樹脂の再生
方法。2. A method for regenerating an ion exchange resin loaded in a mixed bed desalination apparatus for water, wherein the ion exchange resin used in the mixed bed desalination apparatus is separated and has a specific gravity in a cation regeneration tower. Backwash separation using the difference, separating into an anion exchange resin in the upper layer, a mixed resin of anion and cation exchange resin in the middle layer, and a cation exchange resin in the lower layer in this order, and the anion exchange resin in the upper layer is anion regenerated. After being transferred to a column and regenerated in the column, the mixed resin of the middle layer is housed in the anion regeneration column, and the lower layer cation exchange resin left in the separation / cation regeneration column is regenerated in the column, A method for regenerating an ion exchange resin, which comprises transferring a cation exchange resin to the anion regeneration tower, mixing the regenerated anion exchange resin and the unregenerated mixed resin, and returning the mixture to a mixed bed desalination apparatus. ..
換樹脂の再生方法であって、前記混床式脱塩装置で使用
されたイオン交換樹脂を分離兼カチオン再生塔内で比重
差を利用して逆洗分離し、上層にアニオン交換樹脂、中
層にアニオンとカチオンの交換樹脂の混合樹脂および下
層にカチオン交換樹脂の順に三層に分離し、前記上層の
アニオン交換樹脂はアニオン再生塔に移送して該塔内で
再生処理し、次いで該アニオン再生塔に前記中層の混合
樹脂を移送し、分離兼カチオン再生塔に残した下層のカ
チオン交換樹脂を該塔内で再生処理後、前記アニオン再
生塔内のアニオン交換樹脂と未再生の前記混合樹脂とを
分離兼カチオン再生塔に戻して混合し、混床式脱塩装置
に返送することを特徴とするイオン交換樹脂の再生方
法。3. A method for regenerating an ion exchange resin loaded in a mixed bed desalting apparatus for water, wherein the ion exchange resin used in the mixed bed desalting apparatus is separated and has a specific gravity in a cation regeneration tower. Backwash separation using the difference, separating into an anion exchange resin in the upper layer, a mixed resin of anion and cation exchange resin in the middle layer, and a cation exchange resin in the lower layer in this order, and the anion exchange resin in the upper layer is anion regenerated. After being transferred to a column and regenerated in the column, the intermediate layer mixed resin is then transferred to the anion regeneration column, and the lower layer cation exchange resin left in the separation / cation regeneration column is regenerated in the column, A method for regenerating an ion exchange resin, wherein the anion exchange resin in the anion regeneration tower and the unregenerated mixed resin are returned to a separation and cation regeneration tower to be mixed and returned to a mixed bed type desalination apparatus.
換樹脂の再生方法であって、前記混床式脱塩装置で使用
されたイオン交換樹脂を分離兼カチオン再生塔内で比重
差を利用して逆洗分離し、上層にアニオン交換樹脂、中
層にアニオンとカチオンの交換樹脂の混合樹脂および下
層にカチオン交換樹脂の順に三層に分離し、前記中層の
混合樹脂をアニオン樹脂再生時は分離兼カチオン再生
塔、カチオン樹脂再生時はアニオン再生塔に移送してそ
れぞれの再生剤と隔離することを特徴とするイオン交換
樹脂の再生方法。4. A method for regenerating an ion exchange resin loaded in a mixed bed desalting apparatus for water, wherein the ion exchange resin used in the mixed bed desalting apparatus is separated and has a specific gravity in a cation regeneration tower. Backwash separation using the difference, an upper layer is anion exchange resin, an intermediate layer is a mixed resin of anion and cation exchange resin, and a lower layer is a cation exchange resin. At the time of separation and cation regeneration tower, at the time of cation resin regeneration, it is transferred to the anion regeneration tower and separated from the respective regenerants.
生塔に移送後アルカリで再生処理し、次いで中層の混合
樹脂をアニオン再生塔に収容し、前記分離兼カチオン再
生塔に残した下層のカチオン交換樹脂は酸で再生処理す
ることを特徴とする請求項１〜４のいずれかに記載のイ
オン交換樹脂の再生方法。5. The upper layer anion exchange resin is transferred to an anion regeneration tower and regenerated with alkali, and then the middle layer mixed resin is stored in the anion regeneration tower and the lower layer cation exchange resin left in the separation / cation regeneration tower. The method for regenerating an ion exchange resin according to claim 1, wherein the resin is regenerated with an acid.
換樹脂の再生装置であって、前記イオン交換樹脂の分離
兼カチオン再生塔とアニオン再生塔とから成り、前記分
離兼カチオン再生塔は分離後のカチオン樹脂とアニオン
樹脂との混合樹脂およびアニオン樹脂とをそれぞれアニ
オン再生塔へ移送する移送手段を備えており、前記分離
兼カチオン再生塔とアニオン再生塔は再生後の樹脂を混
床式脱塩塔へ返送する返送手段を備えていることを特徴
とするイオン交換樹脂の再生装置。6. A regenerator for an ion exchange resin loaded in a mixed bed desalination apparatus for water, comprising a separation / cation regeneration tower and anion regeneration tower for separating the ion exchange resin. The tower is equipped with transfer means for respectively transferring the mixed resin of the cation resin and the anion resin after separation and the anion resin to the anion regeneration tower, and the separation / cation regeneration tower and the anion regeneration tower mix the resin after regeneration. An ion-exchange resin regenerating apparatus comprising return means for returning to a floor type desalting tower.
換樹脂の再生装置であって、前記イオン交換樹脂の分離
兼カチオン再生塔とアニオン再生塔とから成り、前記分
離兼カチオン再生塔は分離後のアニオン樹脂、カチオン
樹脂とアニオン樹脂との混合樹脂およびカチオン樹脂と
をそれぞれアニオン再生塔へ移送する移送手段を備えて
おり、前記アニオン再生塔は再生後の樹脂を混合する混
合手段と混床式脱塩塔へ返送する返送手段とを備えてい
ることを特徴とするイオン交換樹脂の再生装置。7. A regenerator for an ion exchange resin loaded in a water mixed bed desalination apparatus, comprising a separation / cation regeneration tower and an anion regeneration tower for separating the ion exchange resin. The tower is equipped with transfer means for respectively transferring the anion resin after separation, the mixed resin of the cation resin and the anion resin, and the cation resin to the anion regeneration tower, and the anion regeneration tower is a mixing means for mixing the resin after regeneration. An ion-exchange resin regenerating apparatus comprising: and a return means for returning the mixed-bed demineralization tower.
換樹脂の再生装置であって、前記イオン交換樹脂の分離
兼カチオン再生塔とアニオン再生塔とから成り、前記分
離兼カチオン再生塔は分離後のカチオン樹脂とアニオン
樹脂との混合樹脂およびアニオン樹脂とをそれぞれアニ
オン再生塔へ移送する移送手段を備え、該アニオン再生
塔はカチオン樹脂とアニオン樹脂との混合樹脂およびア
ニオン樹脂を前記分離兼カチオン再生塔へ返送する返送
手段を備え、該分離兼カチオン再生塔は再生後の樹脂を
混合する混合手段を備えていることを特徴とするイオン
交換樹脂の再生装置。8. A regenerator for an ion exchange resin loaded in a mixed bed desalination apparatus for water, comprising a separation / cation regeneration tower and anion regeneration tower for separating the ion exchange resin, and the separation / cation regeneration. The column is equipped with transfer means for respectively transferring the mixed resin of the cation resin and the anion resin after separation and the anion resin to the anion regeneration tower, and the anion regeneration tower includes the mixed resin of the cation resin and the anion resin and the anion resin. An ion-exchange resin regenerating apparatus comprising return means for returning to a separation and cation regeneration tower, and the separation and cation regeneration tower is provided with a mixing means for mixing the regenerated resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33694091A JP3215471B2 (en) | 1991-12-19 | 1991-12-19 | Method and apparatus for regenerating ion exchange resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33694091A JP3215471B2 (en) | 1991-12-19 | 1991-12-19 | Method and apparatus for regenerating ion exchange resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05168953A true JPH05168953A (en) | 1993-07-02 |
| JP3215471B2 JP3215471B2 (en) | 2001-10-09 |
Family
ID=18304038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33694091A Expired - Fee Related JP3215471B2 (en) | 1991-12-19 | 1991-12-19 | Method and apparatus for regenerating ion exchange resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3215471B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097485C (en) * | 1998-05-20 | 2003-01-01 | 武汉凯迪电力股份有限公司 | Stepped resin separator |
| CN106587262A (en) * | 2016-12-16 | 2017-04-26 | 广州达意隆包装机械股份有限公司 | Desalting equipment |
| CN115007224A (en) * | 2022-06-09 | 2022-09-06 | 中电华创电力技术研究有限公司 | Mixed bed resin regeneration method, system, equipment and storage medium |
-
1991
- 1991-12-19 JP JP33694091A patent/JP3215471B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1097485C (en) * | 1998-05-20 | 2003-01-01 | 武汉凯迪电力股份有限公司 | Stepped resin separator |
| CN106587262A (en) * | 2016-12-16 | 2017-04-26 | 广州达意隆包装机械股份有限公司 | Desalting equipment |
| CN115007224A (en) * | 2022-06-09 | 2022-09-06 | 中电华创电力技术研究有限公司 | Mixed bed resin regeneration method, system, equipment and storage medium |
| CN115007224B (en) * | 2022-06-09 | 2023-10-27 | 中电华创电力技术研究有限公司 | Mixed bed resin regeneration method, system, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3215471B2 (en) | 2001-10-09 |
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