JPH02117518A - Granular resin extracting method by pump and device therefor - Google Patents
Granular resin extracting method by pump and device thereforInfo
- Publication number
- JPH02117518A JPH02117518A JP26688388A JP26688388A JPH02117518A JP H02117518 A JPH02117518 A JP H02117518A JP 26688388 A JP26688388 A JP 26688388A JP 26688388 A JP26688388 A JP 26688388A JP H02117518 A JPH02117518 A JP H02117518A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- tank
- pump
- liquid
- granular resin
- 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.)
- Pending
Links
- 239000011347 resin Substances 0.000 title claims abstract description 67
- 229920005989 resin Polymers 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims description 10
- 238000000605 extraction Methods 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000000284 extract Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims 2
- 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 abstract description 2
- 239000003456 ion exchange resin Substances 0.000 abstract description 2
- 229920003303 ion-exchange polymer Polymers 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000005243 fluidization Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000002901 radioactive waste Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は例えば直径が０．１〜２■程度のイオン交換樹
脂のような粒状樹脂を液体とともにタンク内から円滑に
抜出して系外ヘポンプ移送することができる粒状樹脂の
ポンプ抜出し方法及び装置に関するものである。Detailed Description of the Invention (Industrial Application Field) The present invention is capable of smoothly extracting granular resin such as ion exchange resin with a diameter of about 0.1 to 2 cm from a tank together with liquid and pumping it out of the system. The present invention relates to a method and apparatus for pumping out granular resin.
（従来の技術）
上記のような水等の液体を同伴した粒状樹脂はタンク内
において沈降し易（、また高濃度になると抜出配管の閉
塞トラブルが発生するためにタンクから抜出す場合には
何らかの撹拌をおこなう必要がある。このため従来から
第６〜８図に示されるような方式が採用されていた。(Prior art) The granular resin accompanied by liquid such as water as described above tends to settle in the tank (and when the concentration is high, the trouble of clogging the extraction piping occurs, so when extracting it from the tank, It is necessary to perform some kind of stirring.For this reason, the systems shown in FIGS. 6 to 8 have conventionally been adopted.
第６図はポンプ式撹拌器（至）によってタンク内の粒状
樹脂を撹拌しつつタンク側面のノズル（２２）より抜出
す方式を示す、この方式はタンク内全体を撹拌するため
タンクが数十ポを越す大容量となるとポンプ式撹拌器（
至）が多数台必要となるうえ、−旦粒状樹脂が沈降して
圧密化すると再起動が困難な欠点がある。特に放射性廃
棄物処理の際に発生する人体に有害な放射性樹脂のポン
プ移送の際に上記のようなトラブルを発生させることは
大きな問題であった。Figure 6 shows a method in which the granular resin inside the tank is stirred by a pump-type stirrer (to) and then extracted from the nozzle (22) on the side of the tank. For large volumes exceeding
In addition to requiring a large number of machines, it also has the drawback that once the granular resin settles and becomes compacted, it is difficult to restart the system. In particular, it has been a big problem that the above-mentioned troubles occur when pumping radioactive resins that are harmful to the human body and are generated during radioactive waste treatment.
第７図は昇降可能な撹拌器付水中ポンプ（２３）をタン
ク（２１）内の粒状樹脂の界面付近に位置させ、界面付
近から抜出す方式を示す、この方式は撹拌器付水中ポン
プ（２３）を常に界面付近に位置させねばならぬため常
に抜出濃度の監視が必要であり、自動化が困難である等
の問題がある。Figure 7 shows a method in which a submersible pump (23) with an agitator that can be raised and lowered is located near the interface of granular resin in a tank (21) and extracted from the vicinity of the interface. ) must always be located near the interface, so it is necessary to constantly monitor the extracted concentration, and there are problems such as automation being difficult.
第８図はタンク（２１）の底部付近に固定した撹拌器付
水中ポンプ（２５）により撹拌しつつ抜出しを行う方式
を示す、この方式はタンク（２１）が大型化すると撹拌
の不均一が生じて不安定となり易く、また粒状樹脂の沈
降圧密化が生ずると再起動が困難で、そのような場合の
ために図示のように撹拌水ノズル（２６）を設けておか
ねばならぬ問題がある。Figure 8 shows a method in which extraction is performed while stirring using a submersible pump (25) with an agitator fixed near the bottom of the tank (21).This method results in uneven stirring as the tank (21) becomes larger. In addition, if the granular resin settles and becomes compacted, it is difficult to restart the system, and for such a case, a stirring water nozzle (26) must be provided as shown in the figure.
（発明が解決しようとする課Ｂ）
本発明は上記のような従来技術の欠点を解決し、液体を
同伴した粒状樹脂をタンク内から円滑かつ容易に抜出す
ことができ、しかも粒状樹脂の沈降圧密を抜出口付近で
の部分撹拌により防止し、支障なく再起動を行わせるこ
とができる粒状樹脂のポンプ抜出し方法及び装置を目的
として完成されたものである。(Problem B to be Solved by the Invention) The present invention solves the above-mentioned drawbacks of the prior art, allows granular resin accompanied by liquid to be smoothly and easily extracted from a tank, and furthermore eliminates the sedimentation of granular resin. This was completed with the aim of providing a method and device for extracting a granular resin pump that can prevent compaction by partial stirring near the outlet and restart the pump without any trouble.
（課題を解決するための手段）
上記の課題は、タンク内に貯留された液体を同伴した粒
状樹脂を系外ヘポンプ抜出しを行うにあたり、タンク上
部から吸引した液体をタンク底部付近に設けらた抜出口
の近傍の粒状樹脂に対して上方から噴射して粒状樹脂を
部分的に流動化させ、液体の噴射量を調節して樹脂の濃
度を所定範囲に維持しつつ抜出口からポンプにより吸引
して系外へ移送することを特徴とする粒状樹脂のポンプ
抜出方法によって解決される。また上記の課題は、液体
を同伴した粒状樹脂を貯留したタンクと、その底部付近
に設けられた抜出口と、タンク上部から液体を吸引する
ポンプと、吸引された液体を抜出口の近傍の粒状樹脂に
向かって噴射し粒状樹脂を流動化させるため抜出口の上
方に設けられた噴射ノズルと、流動化した粒状樹脂を抜
出口から抜出し系外へ移送する抜出しポンプとからなる
ことを特徴とする粒状樹脂のポンプ抜出し装置によって
解決される。(Means for solving the problem) The above problem is solved by pumping out the granular resin accompanied by the liquid stored in the tank to the outside of the system. The granular resin near the outlet is injected from above to partially fluidize the granular resin, and the amount of liquid jetted is adjusted to maintain the resin concentration within a predetermined range, while the resin is sucked from the outlet by a pump. This problem is solved by a method for pumping out granular resin, which is characterized by transporting the resin out of the system. The above problem also requires a tank that stores granular resin accompanied by a liquid, an extraction port provided near the bottom of the tank, a pump that sucks the liquid from the top of the tank, and a pump that sucks the liquid into granular resin near the extraction port. It is characterized by consisting of an injection nozzle provided above the extraction port for injecting toward the resin to fluidize the granular resin, and an extraction pump that extracts the fluidized granular resin from the extraction port and transfers it to the outside of the system. Solved by granular resin pump extraction device.
（実施例）
以下に本発明を図示の実施例によって更に詳細に説明す
ると、第１図において（１）は内部に直径が１．２ ａ
ｒｍの放射性廃樹脂と水とが貯留されている直径２ｍ、
容量４イのタンクであり、その底部付近には粒状樹脂の
抜出口（２）が設けられている。この抜出口（２）は沈
降してくる粒状樹脂が直接その内部に詰まることを防止
するために先端が下向きとされている。抜出口（２）は
抜出しポンプ（３）に接続されている。またタンク（１
）の上方部にはタンク（１）内の液体（水）のみを吸引
する吸引口（４）が設けられており、吸引された液体は
ポンプ（５）によって加圧され、吐出側配管（６）を介
して噴射ノズル（７）から噴射される。この噴射ノズル
（７）は抜出口（２）の斜上方に複数個設けられており
、抜出口（２）の近傍の粒状樹脂を局部的に流動化させ
る。この流動化した粒状樹脂の濃度はｌＯ〜２０（重量
）％程度であることが好ましいため、噴射される液体の
流量をポンプ（５）によって調節し、樹脂の濃度をコン
トロールする。このようにして流動化された粒状樹脂は
抜出口（２）から液体とともに抜出され、抜出しポンプ
（５）によって系外へ移送されることとなる。 以上に
概要を説明した本説明においては、噴射ノズル（７）の
本数、高さ、角度、間隔、抜出口（２）の高さなどを適
切に定める必要がある。そこで第２図に示されるＨ１！
、α、Ａ等の各値を変化させ、これらのパラメータがい
かなる範囲にあるときに好ましい樹脂濃度で安定した抜
出しが可能であるかを実験した。なお実験に使用したタ
ンクは直径２ｍ、容Ｉ４ｒ＋？で７２０ｋｇの粒状樹脂
を水とともに収容させたものである。(Example) The present invention will be explained in more detail with reference to the illustrated example. In Fig. 1, (1) has a diameter of 1.2 a.
rm radioactive waste resin and water are stored, 2m in diameter,
It is a tank with a capacity of 4, and a granular resin outlet (2) is provided near the bottom of the tank. The tip of this outlet (2) is directed downward in order to prevent the particulate resin that has settled down from directly clogging the inside thereof. The extraction port (2) is connected to an extraction pump (3). Also, the tank (1
) is provided with a suction port (4) that sucks only the liquid (water) in the tank (1), and the sucked liquid is pressurized by the pump (5) and then flows through the discharge side piping (6). ) is injected from the injection nozzle (7). A plurality of the injection nozzles (7) are provided diagonally above the outlet (2), and locally fluidize the granular resin near the outlet (2). Since the concentration of this fluidized granular resin is preferably about 10 to 20% (by weight), the flow rate of the injected liquid is adjusted by the pump (5) to control the concentration of the resin. The granular resin fluidized in this manner is extracted together with the liquid from the extraction port (2), and is transferred to the outside of the system by the extraction pump (5). In the present explanation outlined above, it is necessary to appropriately determine the number, height, angle, and interval of the injection nozzles (7), the height of the extraction port (2), etc. Therefore, H1 shown in Figure 2!
, α, A, etc., and experimented to see in what range these parameters would allow stable extraction at a preferred resin concentration. The tank used in the experiment had a diameter of 2m and a capacity of I4r+. 720 kg of granular resin was stored together with water.
この結果、第３図に示されるように噴射ノズル本数を３
本とし、Ｈ寸法を３００〜３５０ｍｍとし撹拌流速を１
〜８ｍ、好ましくは３〜６ｍとしたときに安定した濃度
で樹脂の抜出しが可能であった、これに対して２本の場
合には樹脂濃度が不安定となる。なお１寸法は４００〜
８００ｍで５５０〜６５０閣がより好ましかった。また
第４図に示すように、噴射ノズル（７）の角度を水平に
した場合と４５°下向きにした場合とを比較すると、３
０〜６０度下向き、より好ましくは４５°下向きとした
場合に安定した抜出しが可能である。更に第５図に示す
ように、抜出口（２）の高さ（Ａ寸法）は１００〜２０
０−のときに好ましい結果が得られた。このため、Ｔ（
−Ａの値としては２００ｍ前後が適当である。As a result, the number of injection nozzles was reduced to 3 as shown in Figure 3.
The H dimension is 300 to 350 mm, and the stirring flow rate is 1.
When the length was 8 m, preferably 3 to 6 m, it was possible to extract the resin at a stable concentration.On the other hand, when the length was 2, the resin concentration became unstable. In addition, one dimension is 400~
550 to 650 kaku at 800 m was more preferable. Furthermore, as shown in Figure 4, when comparing the case where the angle of the injection nozzle (7) is horizontal and the case where the angle is 45 degrees downward, 3
Stable extraction is possible when the direction is 0 to 60 degrees downward, more preferably 45 degrees downward. Furthermore, as shown in Fig. 5, the height (A dimension) of the extraction port (2) is 100 to 20 mm.
Favorable results were obtained when the value was 0-. For this reason, T(
A suitable value for -A is around 200 m.
（発明の効果）
以上に説明したように、本発明によればタンクの上部か
ら吸引された液体を抜出口の近傍の粒状樹脂に対して上
方から噴射し、その部分の粒状樹脂を部分的に流動化さ
せて系外へ抜出すようにしたので、液体の噴射量のｍ節
により樹脂の濃度をポンプ移送に最適の濃度に調節し、
円滑な抜出しが可能である。従って本発明によればタン
クが大型化した場合にもタンク全体を撹拌する必要がな
く、１００ｒｒｌに達するような大型のタンクからの抜
出しも容易に行える。また本発明によれば粒状樹脂の沈
降圧密を防止するように、抜出口付近での部分撹拌を行
っているので、支障なく再起動することができる。更に
また本発明はレベル変化等に合わせて噴射ノズルや抜出
口などを上下動させる必要がない利点もある。更に本発
明は放射性廃棄物処理の際に発生する人体に有害な放射
性廃樹脂をポンプ移送する場合などに特に有用である。(Effects of the Invention) As explained above, according to the present invention, the liquid sucked from the upper part of the tank is injected from above onto the granular resin near the outlet, and the granular resin in that area is partially removed. Since the resin was fluidized and extracted from the system, the concentration of the resin was adjusted to the optimum concentration for pumping by adjusting the injection amount of the liquid.
Smooth extraction is possible. Therefore, according to the present invention, even when the tank becomes large, there is no need to stir the entire tank, and it is possible to easily extract the liquid from a large tank of up to 100 rrl. Further, according to the present invention, partial stirring is performed near the outlet to prevent sedimentation and compaction of the granular resin, so restarting can be performed without any trouble. Furthermore, the present invention has the advantage that there is no need to move the injection nozzle, extraction port, etc. up and down in accordance with level changes. Furthermore, the present invention is particularly useful when pumping radioactive waste resin that is harmful to the human body and is generated during radioactive waste treatment.
よって本発明は、従来の問題点を一掃した粒状樹脂のポ
ンプ抜出し方法及び装置として、産業の発展に寄与する
ところは極めて大である。Therefore, the present invention greatly contributes to the development of industry as a method and device for pumping out granular resin that eliminates the problems of the conventional method.
第１図は本発明の実施例を示す一部切欠正面図、第２図
はその底部の寸法を模式的に示す断面図、第３図はＨ寸
法と抜出樹脂濃度との関係を示すグラフ、第４図はαの
角度と抜出樹脂濃度との関係を示すグラフ、第５図はＡ
寸法と抜出樹脂４度との関係を示すグラフ、第６図、第
７図、第８図は従来の抜出し方式を説明する模式的な断
面図である。
（１）： タンク、（２）：抜出口、（３）：抜出しポ
ンプ、（５）： ポンプ、（７）：噴射ノズル。
第 １ 図
許 出
理
願人
人
日本碍子株式会社
名 嶋 明 部
綿 貫 達 雄
山 本 文 夫
１： ９＞７． ２：５＠口、 ３： ｊ！ＪｔＬ＆〉
７’。
５：ホａ；７’、 ７ ：４ 軒ｉ ２−ル。
第
図
第
図
礫丹壮（惰の
第
図
攪ｐｔ軒（鵡）
第
図
図
第
図Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a sectional view schematically showing the dimensions of the bottom, and Fig. 3 is a graph showing the relationship between H dimension and extracted resin concentration. , Fig. 4 is a graph showing the relationship between the angle of α and the extracted resin concentration, and Fig. 5 is a graph showing the relationship between the angle of α and the extracted resin concentration.
Graphs showing the relationship between dimensions and the degree of extraction resin, and FIGS. 6, 7, and 8 are schematic cross-sectional views illustrating the conventional extraction method. (1): Tank, (2): Extraction port, (3): Extraction pump, (5): Pump, (7): Injection nozzle. Figure 1 Applicant Name of Nippon Insulators Co., Ltd. Akira Shima, Nuki Bewata, Tatsu Yuyama Moto 1: 9>7. 2: 5@mouth, 3: j! JtL&〉
7'. 5: Hoa; 7', 7:4 House i 2-R. Figure diagram diagram
Claims (1)
外へポンプ抜出しを行うにあたり、タンク上部から吸引
した液体をタンク底部付近に設けらた抜出口の近傍の粒
状樹脂に対して上方から噴射して粒状樹脂を部分的に流
動化させ、液体の噴射量を調節して樹脂の濃度を所定範
囲に維持しつつ抜出口からポンプにより吸引して系外へ
移送することを特徴とする粒状樹脂のポンプ抜出方法。 ２、液体を同伴した粒状樹脂を貯留したタンク（１）と
、その底部付近に設けられた抜出口（２）と、タンク上
部から液体を吸引するポンプ（５）と、吸引された液体
を抜出口（２）の近傍の粒状樹脂に向かって噴射し粒状
樹脂を流動化させるため抜出口（２）の上方に設けられ
た噴射ノズル（７）と、流動化した粒状樹脂を抜出口（
２）から抜出し系外へ移送する抜出しポンプ（３）とか
らなることを特徴とする粒状樹脂のポンプ移送装置。[Claims] 1. When pumping out the granular resin accompanied by the liquid stored in the tank out of the system, the liquid sucked from the top of the tank is collected in the granular form near the extraction port provided near the bottom of the tank. The resin is injected from above to partially fluidize the granular resin, and the amount of liquid injected is adjusted to maintain the resin concentration within a predetermined range, while the pump sucks the resin out of the extraction port and transfers it to the outside of the system. A method for pumping out granular resin. 2. A tank (1) that stores granular resin with liquid, an extraction port (2) provided near the bottom of the tank, a pump (5) that sucks the liquid from the top of the tank, and a pump that extracts the sucked liquid. An injection nozzle (7) is installed above the outlet (2) to spray the granular resin near the outlet (2) and fluidize the granular resin, and a spray nozzle (7) is provided above the outlet (2) to inject the granular resin near the outlet (2).
2) A pump transfer device for granular resin, comprising an extraction pump (3) for transferring the resin from the extraction system to the outside of the extraction system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26688388A JPH02117518A (en) | 1988-10-21 | 1988-10-21 | Granular resin extracting method by pump and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26688388A JPH02117518A (en) | 1988-10-21 | 1988-10-21 | Granular resin extracting method by pump and device therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02117518A true JPH02117518A (en) | 1990-05-02 |
Family
ID=17436985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26688388A Pending JPH02117518A (en) | 1988-10-21 | 1988-10-21 | Granular resin extracting method by pump and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02117518A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5132049A (en) * | 1974-09-11 | 1976-03-18 | Kubota Ltd | |
| JPS5132029A (en) * | 1974-09-13 | 1976-03-18 | Kunizo Taguchi | SHIKII |
| JPS573549A (en) * | 1980-06-04 | 1982-01-09 | Mitsubishi Electric Corp | Generator-motor direct-coupled flywheel device |
| JPS5889505A (en) * | 1981-11-16 | 1983-05-27 | Mitsubishi Heavy Ind Ltd | Storage equipment for non-newtonian fluid |
| JPS6031991U (en) * | 1983-08-09 | 1985-03-04 | 東洋食品機械株式会社 | Grasping device for stacking many sheet-like articles |
-
1988
- 1988-10-21 JP JP26688388A patent/JPH02117518A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5132049A (en) * | 1974-09-11 | 1976-03-18 | Kubota Ltd | |
| JPS5132029A (en) * | 1974-09-13 | 1976-03-18 | Kunizo Taguchi | SHIKII |
| JPS573549A (en) * | 1980-06-04 | 1982-01-09 | Mitsubishi Electric Corp | Generator-motor direct-coupled flywheel device |
| JPS5889505A (en) * | 1981-11-16 | 1983-05-27 | Mitsubishi Heavy Ind Ltd | Storage equipment for non-newtonian fluid |
| JPS6031991U (en) * | 1983-08-09 | 1985-03-04 | 東洋食品機械株式会社 | Grasping device for stacking many sheet-like articles |
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