JPS6344104Y2 - - Google Patents
Info
- Publication number
- JPS6344104Y2 JPS6344104Y2 JP7590184U JP7590184U JPS6344104Y2 JP S6344104 Y2 JPS6344104 Y2 JP S6344104Y2 JP 7590184 U JP7590184 U JP 7590184U JP 7590184 U JP7590184 U JP 7590184U JP S6344104 Y2 JPS6344104 Y2 JP S6344104Y2
- Authority
- JP
- Japan
- Prior art keywords
- exchange resin
- resin
- anion exchange
- tower
- regeneration tower
- 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
Links
- 239000011347 resin Substances 0.000 claims description 83
- 229920005989 resin Polymers 0.000 claims description 83
- 238000011069 regeneration method Methods 0.000 claims description 72
- 239000003957 anion exchange resin Substances 0.000 claims description 71
- 230000008929 regeneration Effects 0.000 claims description 70
- 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 55
- 239000003729 cation exchange resin Substances 0.000 claims description 46
- 238000000605 extraction Methods 0.000 claims description 25
- 238000000926 separation method Methods 0.000 claims description 17
- 238000005115 demineralization Methods 0.000 claims description 15
- 230000002328 demineralizing effect Effects 0.000 claims description 15
- 238000010612 desalination reaction Methods 0.000 claims description 12
- 239000003456 ion exchange resin Substances 0.000 claims description 10
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 10
- 238000005342 ion exchange Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 239000010410 layer Substances 0.000 description 13
- 239000003513 alkali Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000011001 backwashing Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000002522 swelling effect Effects 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treatment Of Water By Ion Exchange (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は復水脱塩装置のような塔外再生式の複
数の温床式イオン交換脱塩装置の系に付設される
混合イオン交換樹脂の再生装置に関する。[Detailed description of the invention] [Field of industrial application] The present invention is a method for using a mixed ion exchange resin attached to a system of an external regeneration type multiple hotbed type ion exchange desalination equipment such as a condensate desalination equipment. Regarding a playback device.
〔従来技術〕
火力発電所や原子力発電所で使用される復水脱
塩装置は、多くの場合、塔外再生式の混床式イオ
ン交換脱塩装置である。塔外再生の場合、混合イ
オン交換樹脂の再生は、まず脱塩塔内の樹脂をカ
チオン交換樹脂再生塔に移送して逆洗を行ない、
カチオン交換樹脂とアニオン交換樹脂とを２層に
分離し、上層のアニオン交換樹脂をアニオン交換
樹脂再生塔に移送し、続いてカチオン交換樹脂層
に塩酸または硫酸を通液し、一方アニオン交換樹
脂層に苛性ソーダを通液し、両樹脂層の洗浄を行
ない、洗浄の終わつた両樹脂を樹脂貯槽に移送し
て空気で混合し、混合した樹脂を脱塩塔に戻すと
いう手順を基本としている。[Prior Art] Condensate desalination equipment used in thermal power plants and nuclear power plants is often an external regeneration type mixed bed ion exchange desalination equipment. In the case of external regeneration, the mixed ion exchange resin is regenerated by first transferring the resin in the demineralization tower to the cation exchange resin regeneration tower and backwashing it.
The cation exchange resin and anion exchange resin are separated into two layers, the upper layer anion exchange resin is transferred to an anion exchange resin regeneration tower, and then hydrochloric acid or sulfuric acid is passed through the cation exchange resin layer, while the anion exchange resin layer The basic procedure is to pass caustic soda through the tank, wash both resin layers, transfer the washed resins to a resin storage tank, mix them with air, and return the mixed resin to the demineralization tower.
塔外再生式の混床式イオン交換脱塩装置は通常
複数の脱塩塔を備えており、複数の全脱塩塔に共
通の再生装置を備えている場合が多い。詳しく
は、脱塩塔の数より１つ多いバツチ分の混合イオ
ン交換樹脂が脱塩−再生系に存在し、各バツチ分
の樹脂を再生するために各脱塩塔と再生装置との
間で樹脂の移送を行なう。このとき、樹脂移送配
管内や各脱塩塔の中に樹脂が全く残らないように
すれば、樹脂量バランスの崩れはないのである
が、往々にして樹脂量バランスが崩れ、各バツチ
の樹脂量が異なつてくることがある。 An external regeneration type mixed bed ion exchange desalination apparatus is usually equipped with a plurality of desalination towers, and in many cases, all the desalination towers are equipped with a common regenerator. Specifically, one batch of mixed ion exchange resin is present in the desalination-regeneration system, and one batch of mixed ion exchange resin is present in the desalination-regeneration system, and in order to regenerate each batch of resin, there is a Transfer the resin. At this time, if no resin remains in the resin transfer piping or in each demineralization tower, the resin amount balance will not be disrupted, but the resin amount balance will often be disrupted and the amount of resin in each batch will be reduced. may come out differently.
本考案者らは、以前に脱塩塔の処理水質を向上
させる目的で、特公昭58−41913号公報記載の方
法を提案した。この方法では、脱塩塔からカチオ
ン交換樹脂再生塔に移送された脱塩用のカチオン
及びアニオン交換樹脂と予めカチオン交換樹脂再
生塔内に導入した分離用のカチオン及びアニオン
交換樹脂の混合樹脂（以下分離用混合樹脂とい
う。）を一緒に逆洗し、カチオン交換樹脂とアニ
オン交換樹脂とを２層に分離させる。次に分離界
面よりやや下に位置する引抜き口より上層のアニ
オン交換樹脂の全量と分離界面近傍のカチオン交
換樹脂とをアニオン交換樹脂再生塔に移送する。
続いてアニオン交換樹脂再生塔において逆洗を行
ない、アニオン交換樹脂と共に移送されたカチオ
ン交換樹脂を塔底部に成層させる。カチオン交換
樹脂再生塔に酸を通薬し、一方アニオン交換樹脂
再生塔にアルカリを通薬したのち、両再生塔内を
洗浄する。洗浄後、カチオン交換樹脂再生塔内の
樹脂を樹脂貯槽に移送し、アニオン交換樹脂再生
塔の分離界面より上方に設けた引抜き口よりアニ
オン交換樹脂を引抜いて樹脂貯槽に移送する。樹
脂貯槽内で両樹脂の混合を行ない、アニオン交換
樹脂再生塔内に残つたカチオン及びアニオン交換
樹脂を前記の分離用混合樹脂としてカチオン交換
樹脂再生塔に戻す。 The inventors of the present invention previously proposed a method described in Japanese Patent Publication No. 41913/1983 for the purpose of improving the quality of water treated in a desalination tower. In this method, a mixed resin (hereinafter referred to as (referred to as mixed resin for separation) are backwashed together to separate the cation exchange resin and anion exchange resin into two layers. Next, the entire amount of anion exchange resin in the upper layer from the withdrawal port located slightly below the separation interface and the cation exchange resin near the separation interface are transferred to an anion exchange resin regeneration tower.
Subsequently, backwashing is performed in the anion exchange resin regeneration tower, and the cation exchange resin transferred together with the anion exchange resin is layered at the bottom of the tower. After passing acid through the cation exchange resin regeneration tower and passing alkali through the anion exchange resin regeneration tower, the insides of both regeneration towers are washed. After washing, the resin in the cation exchange resin regeneration tower is transferred to a resin storage tank, and the anion exchange resin is pulled out from a drawing port provided above the separation interface of the anion exchange resin regeneration tower and transferred to the resin storage tank. Both resins are mixed in the resin storage tank, and the cations and anion exchange resin remaining in the anion exchange resin regeneration tower are returned to the cation exchange resin regeneration tower as the aforementioned mixed resin for separation.
上記方法では、再生後のカチオン交換樹脂の量
は、イオン形の変化による樹脂の膨潤を無視すれ
ば、カチオン交換樹脂再生塔の底からアニオン交
換樹脂（および分離用混合樹脂）引抜き口までの
一定量であるから、カチオン交換樹脂の量は膨
潤・収縮による変動量以上には変動しない。しか
しながら、アニオン交換樹脂の量にはこのような
定量性を維持するための格別の工夫がなされてい
ないので、各バツチごとに変動するおそれがあ
り、前記方法を用いた実際の復水脱塩装置でも、
アニオン交換樹脂にはこうした変動が見られた。
したがつて、再生を繰り返すことによつて、複数
の脱塩塔内のアニオン交換樹脂の量に差が生ずる
という問題があり、その解決が望まれている。 In the above method, the amount of cation exchange resin after regeneration is constant from the bottom of the cation exchange resin regeneration tower to the outlet for drawing out the anion exchange resin (and mixed resin for separation), if swelling of the resin due to changes in ionic form is ignored. Therefore, the amount of cation exchange resin does not fluctuate more than the amount of fluctuation due to swelling and contraction. However, since no special measures have been taken to maintain such quantitative properties in the amount of anion exchange resin, there is a risk that it may vary from batch to batch. but,
Such fluctuations were observed in anion exchange resins.
Therefore, there is a problem in that repeated regeneration causes differences in the amount of anion exchange resin in a plurality of demineralization towers, and a solution to this problem is desired.
本考案は上記の欠点を解決するためになされた
もので、その目的はカチオン交換樹脂だけでなく
アニオン交換樹脂についても、その量の変動を樹
脂の膨潤・収縮による範囲内に抑えることができ
る混合イオン交換樹脂の再生装置を提供するにあ
る。
The present invention was made in order to solve the above-mentioned drawbacks, and the purpose is to mix not only cation exchange resins but also anion exchange resins so that fluctuations in the amount can be suppressed within the range caused by swelling and contraction of the resin. The present invention provides an ion exchange resin regeneration device.
前記目的を達成する本考案の混合イオン交換樹
脂の再生装置について概説すると、本考案は混床
式イオン交換脱塩塔に付設されるカチオン交換樹
脂再生塔、アニオン交換樹脂再生塔及び樹脂貯槽
を含む塔外再生式の混合イオン交換樹脂の再生装
置において、カチオン交換樹脂再生塔はその塔中
間部にアニオン交換樹脂引抜き口を備え、かつ該
アニオン交換樹脂引抜き口の高さより下方のカチ
オン交換樹脂再生塔内の容積は脱塩塔に充填する
カチオン交換樹脂量に相当する容積であり、アニ
オン交換樹脂再生塔はその塔の中間部の上方域に
表層樹脂引抜き口及び下方域にアニオン交換樹脂
引抜き口を備え、かつ表層樹脂引抜き口の高さと
アニオン交換樹脂引抜き口の高さの間にアニオン
交換樹脂再生塔内の容積は脱塩塔に充填するアニ
オン交換樹脂量に相当する容積であり、アニオン
交換樹脂引抜き口の下方のアニオン交換樹脂再生
塔内の容積は分離用混合樹脂の量に相当する容積
であることを特徴とする混合イオン交換樹脂の再
生装置に関する。
To outline the mixed ion exchange resin regeneration apparatus of the present invention that achieves the above object, the present invention includes a cation exchange resin regeneration tower, an anion exchange resin regeneration tower, and a resin storage tank attached to a mixed bed ion exchange demineralization tower. In an external regeneration type mixed ion exchange resin regeneration device, the cation exchange resin regeneration tower is equipped with an anion exchange resin withdrawal port in the middle of the tower, and the cation exchange resin regeneration tower is provided with an anion exchange resin withdrawal port located below the height of the anion exchange resin withdrawal port. The volume within is equivalent to the amount of cation exchange resin filled in the demineralization tower, and the anion exchange resin regeneration tower has a surface resin extraction port in the upper region of the middle part of the tower and an anion exchange resin extraction port in the lower region. The volume inside the anion exchange resin regeneration tower between the height of the surface resin extraction port and the height of the anion exchange resin extraction port is the volume equivalent to the amount of anion exchange resin filled in the desalination tower, and the anion exchange resin The present invention relates to a mixed ion exchange resin regeneration apparatus characterized in that the volume in the anion exchange resin regeneration tower below the drawing port is a volume corresponding to the amount of the mixed resin for separation.
本考案は前記先行発明を改良したものであつ
て、アニオン交換樹脂再生塔に通常のアニオン交
換樹脂引抜き口のほかに、その上方に表層樹脂引
抜き口を設け、かつ表層樹脂引抜き口の高さとア
ニオン交換樹脂引抜き口の高さの間のアニオン交
換樹脂再生塔内の容積を脱塩塔に充填するアニオ
ン交換樹脂量に相当する容積とすることにより先
ず樹脂貯槽に移送するアニオン交換樹脂の量の定
量化を達成したものである。 The present invention is an improvement on the prior invention, in which an anion exchange resin regeneration tower is provided with a surface resin withdrawal port above the normal anion exchange resin withdrawal port, and the height of the surface resin withdrawal port and anion First, the amount of anion exchange resin to be transferred to the resin storage tank is determined by setting the volume of the anion exchange resin regeneration tower between the heights of the exchange resin extraction port to a volume equivalent to the amount of anion exchange resin to be filled into the demineralization tower. This is what we achieved.
表層樹脂とは、アニオン交換樹脂再生塔におけ
る逆洗工程終了後、沈静させた時に表層樹脂引抜
き口より上方に位置する樹脂を指称する。表層樹
脂が存在することにより、再生前のカチオン交換
樹脂体積の変動に伴うカチオン交換樹脂とアニオ
ン交換樹脂との分離界面位置の変動と再生前のア
ニオン交換樹脂体積の変動とに起因するアニオン
交換樹脂層上面位置の変動が表層樹脂層厚の変動
として吸収されるため、再生後のアニオン交換樹
脂体積が一定に保たれるのである。なお、表層樹
脂は本質的にはアニオン交換樹脂であるが、ゴミ
や破砕樹脂などを含むことが多いので、表層樹脂
引抜き口を設け、これを分離する本考案はこのよ
うな不純物を脱塩塔に入れないという利点をも有
する。 The surface layer resin refers to the resin located above the surface layer resin extraction port when the anion exchange resin regeneration tower is allowed to settle down after the backwashing process is completed. Due to the presence of the surface layer resin, the anion exchange resin is caused by fluctuations in the separation interface position between the cation exchange resin and anion exchange resin due to fluctuations in the volume of the cation exchange resin before regeneration, and fluctuations in the volume of the anion exchange resin before regeneration. Since fluctuations in the top surface position of the layer are absorbed as fluctuations in the thickness of the surface resin layer, the volume of the anion exchange resin after regeneration is kept constant. Although the surface resin is essentially an anion exchange resin, it often contains dust and crushed resin, so the present invention, which separates it by providing a surface resin extraction port, removes such impurities from the desalination tower. It also has the advantage that it cannot be inserted into the
以下図面を参照して本考案を具体的に説明す
る。
The present invention will be explained in detail below with reference to the drawings.
第１図は本考案の一実施態様を示した装置の配
列図であり、第２図は他の実施態様を示した装置
の配列図である。第１図及び第２図中、１はカチ
オン交換樹脂、２はアニオン交換樹脂、１０はカ
チオン交換樹脂再生塔、１１はアニオン交換樹脂
引抜き口、１２はカチオン交換樹脂引抜き口、１
３は未再生樹脂受入れ口、１４は頂部集配水機
構、１５は底部集配水機構、１６は酸通薬管、２
０はアニオン交換樹脂再生塔、２１は表層樹脂引
抜き口、２２はアニオン交換樹脂引抜き口、２３
は分離用混合樹脂引抜き口、２４は頂部集配水機
構、２５は底部集配水機構、２６はアルカリ通薬
管、２７はアルカリ排液管、３０は樹脂貯槽、３
１は再生済樹脂引抜き口、３２は頂部集配水機
構、３３は底部集配水機構、３４はフリーボード
ドレン管、４０は樹脂ホツパ、４１はエゼクタ、
○−は樹脂移送ライン、−は流体移送ラインを示す。 FIG. 1 is an arrangement diagram of an apparatus showing one embodiment of the present invention, and FIG. 2 is an arrangement diagram of an apparatus showing another embodiment. 1 and 2, 1 is a cation exchange resin, 2 is an anion exchange resin, 10 is a cation exchange resin regeneration tower, 11 is an anion exchange resin extraction port, 12 is a cation exchange resin extraction port, 1
3 is an unregenerated resin receiving port, 14 is a top water collection and distribution mechanism, 15 is a bottom water collection and distribution mechanism, 16 is an acid pipe, 2
0 is an anion exchange resin regeneration tower, 21 is a surface resin extraction port, 22 is an anion exchange resin extraction port, 23
24 is a top water collection and distribution mechanism, 25 is a bottom water collection and distribution mechanism, 26 is an alkaline drug pipe, 27 is an alkali drainage pipe, 30 is a resin storage tank, 3
1 is a recycled resin extraction port, 32 is a top water collection and distribution mechanism, 33 is a bottom water collection and distribution mechanism, 34 is a freeboard drain pipe, 40 is a resin hopper, 41 is an ejector,
○- indicates a resin transfer line, and - indicates a fluid transfer line.
第１図に示す再生装置においては、まず未再生
樹脂受入れ口１３から未再生の混合樹脂をカチオ
ン交換樹脂再生塔１０内に受入れ、予めカチオン
交換樹脂再生塔２０からカチオン交換樹脂再生塔
１０内に移送しておいた表層樹脂及び分離用混合
樹脂と共にカチオン交換樹脂再生塔１０内で逆洗
する。逆洗を行なうと混合樹脂は上下二層に分離
し、上層にアニオン交換樹脂、下層にカチオン交
換樹脂がくる。これを沈静すると、両樹脂の分離
界面はアニオン交換樹脂引抜き口１１より上方と
なるから、アニオン交換樹脂引抜き口１１から樹
脂を引抜いてアニオン交換樹脂再生塔２０内に移
送すれば、アニオン交換樹脂の全量と分離界面付
近のカチオン交換樹脂が移送される。続いて両再
生塔１０及び２０内で逆洗を行なうと、アニオン
交換樹脂再生塔の底部には分離界面付近のカチオ
ン交換樹脂が層を成す。第１図は再生工程がそこ
まで進んだ段階を示している。続いてカチオン交
換樹脂再生塔内に酸通薬管１６から塩酸・硫酸な
どの酸を通液し、アニオン交換樹脂再生塔内にア
ルカリ通薬管２６から苛性ソーダ溶液などのアル
カリを通液する。通薬後、両再生塔内を純水で洗
浄する。洗浄終了後、カチオン交換樹脂引抜き口
１２から樹脂の引抜きを行ない、樹脂貯槽３０に
移送する。続いて表層樹脂引抜き口２１から樹脂
の引抜きを行ない、カチオン交換樹脂再生塔１０
に移送する。続いてアニオン交換樹脂引抜き口２
２から樹脂の引抜きを行ない、樹脂貯槽３０に移
送する。続いて分離用混合樹脂引抜き口２３から
樹脂の引抜きを行ない、カチオン交換樹脂再生塔
１０に移送する。この段階でカチオン交換樹脂再
生塔１０内には表層樹脂及び分離用混合樹脂が導
入されている。また樹脂貯槽３０内には脱塩塔に
充填するカチオン交換樹脂及びアニオン交換樹脂
が導入されている。樹脂貯槽３０内で空気により
混合を行ない、待機する。 In the regenerator shown in FIG. 1, an unregenerated mixed resin is first received into the cation exchange resin regeneration tower 10 from the unregenerated resin receiving port 13, and is then transferred from the cation exchange resin regeneration tower 20 into the cation exchange resin regeneration tower 10 in advance. It is backwashed in the cation exchange resin regeneration tower 10 together with the transported surface layer resin and mixed resin for separation. When backwashing is performed, the mixed resin is separated into upper and lower layers, with the anion exchange resin in the upper layer and the cation exchange resin in the lower layer. When this settles down, the separation interface between both resins will be above the anion exchange resin extraction port 11, so if the resin is extracted from the anion exchange resin extraction port 11 and transferred to the anion exchange resin regeneration tower 20, the anion exchange resin The entire amount and the cation exchange resin near the separation interface are transferred. Subsequently, when backwashing is performed in both regeneration towers 10 and 20, the cation exchange resin near the separation interface forms a layer at the bottom of the anion exchange resin regeneration tower. Figure 1 shows the stage at which the regeneration process has advanced. Subsequently, an acid such as hydrochloric acid or sulfuric acid is passed through the acid flow pipe 16 into the cation exchange resin regeneration tower, and an alkali such as a caustic soda solution is passed through the alkali flow pipe 26 into the anion exchange resin regeneration tower. After passing the medicine, the inside of both regeneration towers is washed with pure water. After the cleaning is completed, the resin is extracted from the cation exchange resin extraction port 12 and transferred to the resin storage tank 30. Subsequently, the resin is extracted from the surface resin extraction port 21, and the cation exchange resin regeneration tower 10
Transfer to. Next, anion exchange resin extraction port 2
The resin is extracted from the resin storage tank 2 and transferred to the resin storage tank 30. Subsequently, the resin is extracted from the separation mixed resin extraction port 23 and transferred to the cation exchange resin regeneration tower 10. At this stage, the surface layer resin and the mixed resin for separation have been introduced into the cation exchange resin regeneration tower 10. Further, a cation exchange resin and an anion exchange resin to be filled in the demineralization tower are introduced into the resin storage tank 30. Mixing is performed with air in the resin storage tank 30, and the mixture is put on standby.
次に、第２図に示す再生装置においては、アニ
オン交換樹脂再生塔２０内の表層樹脂を直接カチ
オン交換樹脂再生塔１０に移送せず、一旦樹脂ホ
ツパ４０に保管させ、必要に応じエゼクタ４１に
より該再生塔１０に移送する。この方式では、ア
ルカリを通液する前に表層樹脂を引抜くことがで
きる。表層樹脂の引抜きとアルカリの通液のどち
らを先にするかについては、場合により適宜選択
すればよい。又、第２図においては、アルカリ排
液管２７を設けて、アルカリと分離用混合樹脂を
構成するカチオン交換樹脂が接触しないようにし
てあり、この方式はナトリウム形のカチオン交換
樹脂の生成を極端に嫌う場合には有効である。 Next, in the regeneration apparatus shown in FIG. 2, the surface resin in the anion exchange resin regeneration tower 20 is not directly transferred to the cation exchange resin regeneration tower 10, but is temporarily stored in the resin hopper 40, and then transferred to the ejector 41 as necessary. Transferred to the regeneration tower 10. With this method, the surface resin can be pulled out before the alkali is passed through. Which of the surface layer resin drawing and alkali passage should be carried out first may be selected as appropriate depending on the situation. In addition, in Fig. 2, an alkali drain pipe 27 is provided to prevent contact between the alkali and the cation exchange resin constituting the mixed resin for separation. It is effective if you dislike it.
本考案によれば、複数の脱塩塔より成る塔外再
生式の混床式イオン交換脱塩装置において、各脱
塩塔に充填するカチオン交換樹脂及びアニオン交
換樹脂の量の変動を樹脂のイオン形の変化による
膨潤・収縮の範囲に抑えることができ、各脱塩塔
相互間に樹脂量の大きな偏りが生じないため、脱
塩装置の運転管理の定常性が達成される。
According to the present invention, in an external regeneration type mixed bed ion exchange desalination apparatus consisting of a plurality of demineralization towers, fluctuations in the amount of cation exchange resin and anion exchange resin filled in each demineralization tower are controlled by the resin ions. Swelling and contraction due to changes in shape can be suppressed within the range, and large deviations in the amount of resin between the demineralization towers do not occur, so stability in operation management of the demineralization equipment is achieved.
第１図は本考案の一実施態様を示す装置の配列
図であり、第２図は本考案の他の実施態様を示す
装置の配列図である。
第１図及び第２図中、１……カチオン交換樹
脂、２……アニオン交換樹脂、１０……カチオン
交換樹脂再生塔、１１……アニオン交換樹脂引抜
き口、１２……カチオン交換樹脂引抜き口、１３
……未再生樹脂受入れ口、１４……頂部集配水機
構、１５……底部集配水機構、１６……酸通薬
管、２０……アニオン交換樹脂再生塔、２１……
表層樹脂引抜き口、２２……アニオン交換樹脂引
抜き口、２３……分離用混合樹脂引抜き口、２４
……頂部集配水機構、２５……底部集配水機構、
２６……アルカリ通薬管、２７……アルカリ排液
管、３０……樹脂貯槽、３１……再生済樹脂引抜
き口、３２……頂部集配水機構、３３……底部集
配水機構、３４……フリーボードドレン管、４０
……樹脂ホツパ、４１……エゼクタ、○−……樹脂
移送ライン、−……流体移送ライン。
FIG. 1 is an arrangement diagram of an apparatus showing one embodiment of the present invention, and FIG. 2 is an arrangement diagram of an apparatus showing another embodiment of the invention. In FIGS. 1 and 2, 1...Cation exchange resin, 2...Anion exchange resin, 10...Cation exchange resin regeneration tower, 11...Anion exchange resin extraction port, 12...Cation exchange resin extraction port, 13
...Unregenerated resin receiving port, 14...Top water collection and distribution mechanism, 15...Bottom water collection and distribution mechanism, 16...Acid flow pipe, 20...Anion exchange resin regeneration tower, 21...
Surface layer resin extraction port, 22... Anion exchange resin extraction port, 23... Mixed resin extraction port for separation, 24
...Top water collection and distribution mechanism, 25...Bottom water collection and distribution mechanism,
26...Alkaline drug pipe, 27...Alkaline drain pipe, 30...Resin storage tank, 31...Regenerated resin extraction port, 32...Top water collection and distribution mechanism, 33...Bottom water collection and distribution mechanism, 34... Freeboard drain pipe, 40
...Resin hopper, 41...Ejector, ○-...Resin transfer line, -...Fluid transfer line.
Claims (1)
交換樹脂再生塔、アニオン交換樹脂再生塔及び樹
脂貯槽を含む塔外再生式の混合イオン交換樹脂の
再生装置において、カチオン交換樹脂再生塔はそ
の塔中間部にアニオン交換樹脂引抜き口を備え、
かつ該アニオン交換樹脂引抜き口の高さより下方
のカチオン交換樹脂再生塔内の容積は脱塩塔に充
填するカチオン交換樹脂量に相当する容積であ
り、アニオン交換樹脂再生塔はその塔の中間部の
上方域に表層樹脂引抜き口及び下方域にアニオン
交換樹脂引抜き口を備え、かつ表層樹脂引抜き口
の高さとアニオン交換樹脂引抜き口の高さの間の
アニオン交換樹脂再生塔内の容積は脱塩塔に充填
するアニオン交換樹脂量に相当する容積であり、
アニオン交換樹脂引抜き口の下方のアニオン交換
樹脂再生塔内の容積は分離用混合樹脂の量に相当
する容積であることを特徴とする混合イオン交換
樹脂の再生装置。 In an external regeneration type mixed ion exchange resin regeneration device that includes a cation exchange resin regeneration tower, an anion exchange resin regeneration tower, and a resin storage tank attached to a mixed bed ion exchange demineralization tower, the cation exchange resin regeneration tower is Equipped with an anion exchange resin extraction port in the middle part,
The volume of the cation exchange resin regeneration tower below the height of the anion exchange resin drawing port is the volume corresponding to the amount of cation exchange resin filled in the demineralization tower, and the anion exchange resin regeneration tower has a volume corresponding to the amount of cation exchange resin filled in the demineralization tower. The anion exchange resin regeneration tower is equipped with a surface resin withdrawal port in the upper region and an anion exchange resin withdrawal port in the lower region, and the volume within the anion exchange resin regeneration tower between the height of the surface resin withdrawal port and the height of the anion exchange resin withdrawal port is the desalination tower. The volume is equivalent to the amount of anion exchange resin filled in the
A mixed ion exchange resin regeneration apparatus characterized in that a volume in an anion exchange resin regeneration tower below an anion exchange resin drawing port is a volume corresponding to an amount of a mixed resin for separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7590184U JPS60189331U (en) | 1984-05-25 | 1984-05-25 | Mixed ion exchange resin regeneration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7590184U JPS60189331U (en) | 1984-05-25 | 1984-05-25 | Mixed ion exchange resin regeneration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60189331U JPS60189331U (en) | 1985-12-14 |
| JPS6344104Y2 true JPS6344104Y2 (en) | 1988-11-16 |
Family
ID=30617547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7590184U Granted JPS60189331U (en) | 1984-05-25 | 1984-05-25 | Mixed ion exchange resin regeneration equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189331U (en) |
-
1984
- 1984-05-25 JP JP7590184U patent/JPS60189331U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60189331U (en) | 1985-12-14 |
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