JPH0156718B2 - - Google Patents
Info
- Publication number
- JPH0156718B2 JPH0156718B2 JP55001878A JP187880A JPH0156718B2 JP H0156718 B2 JPH0156718 B2 JP H0156718B2 JP 55001878 A JP55001878 A JP 55001878A JP 187880 A JP187880 A JP 187880A JP H0156718 B2 JPH0156718 B2 JP H0156718B2
- Authority
- JP
- Japan
- Prior art keywords
- storage
- granules
- chute
- granule
- input port
- 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
- 239000002901 radioactive waste Substances 0.000 claims description 7
- 239000008187 granular material Substances 0.000 description 69
- 239000012530 fluid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、放射性廃棄物の造粒体の充填効率の
高い貯蔵庫に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a storage with high filling efficiency for granules of radioactive waste.
原子力発電所から発生する放射性廃液は濃縮さ
れた後、遠心薄膜乾燥機によつて粉体化される。
この粉体は、造粒された後貯蔵庫内に移送され、
長期間に渡つて貯蔵される。貯蔵期間中に放射能
が、減衰される。造粒体の貯蔵庫の構造について
は特願昭53−88657号明細書に記載されている。
また、特願昭54−43088号明細書に記載されてい
るように、貯蔵庫内への造粒体の供給のためにシ
ユートを用いる案が提案されている。
Radioactive waste fluid generated from nuclear power plants is concentrated and then pulverized using a centrifugal thin film dryer.
After this powder is granulated, it is transferred to a storage room,
Stored for a long period of time. During storage the radioactivity is attenuated. The structure of the granule storage is described in Japanese Patent Application No. 1988-88657.
Further, as described in Japanese Patent Application No. 1988-43088, a scheme has been proposed in which a chute is used to supply granules into a storage.
貯蔵庫内には数年間の運転期間中に原子力発電
所から発生する多量の放射性廃液から生成される
造粒体が充填される。従つて、貯蔵庫内にできる
だけ多数の造粒体を充填させること、すなわち、
造粒体の充填効率を向上させることが要求され
る。 The storage is filled with granules produced from the large amounts of radioactive waste fluid generated from nuclear power plants during several years of operation. Therefore, it is necessary to fill the storage with as many granules as possible, that is,
It is required to improve the filling efficiency of granules.
本発明の目的は、放射性廃棄物の造粒体を貯蔵
庫に投入の際、前記造粒体に作用する衝撃を緩和
して造粒体の破損を防止し、かつ前記貯蔵庫内に
可動部分を設けることなく貯蔵庫内への造粒体の
充填効率を向上させた放射性廃棄物用貯蔵庫を提
供することにある。
An object of the present invention is to prevent damage to the granules by alleviating the impact acting on the granules when putting the granules of radioactive waste into a storage, and to provide a movable part in the storage. An object of the present invention is to provide a storage for radioactive waste in which the efficiency of filling granules into the storage is improved without causing any problems.
本発明の特徴は、横断面が多角形の貯蔵庫の上
面でかつ貯蔵庫の各々の角部付近に投入口を設
け、各各の投入口から貯蔵庫の底部に達する複数
の一方向に傾斜した固定シユートを設け、各固定
シユートを互いに隣接した少なくとも２つの側壁
にまたがつて設けたことにある。
A feature of the present invention is that the upper surface of the storage is polygonal in cross section, and an input port is provided near each corner of the storage, and a plurality of fixed shoots are provided that are inclined in one direction and reach the bottom of the storage from each input port. and each fixed chute is provided astride at least two adjacent side walls.
本発明の好適な一実施例を第１図に基づいて説
明する。
A preferred embodiment of the present invention will be described based on FIG.
第１図において、１は貯蔵庫、２は貯蔵庫天
井、３および４は造粒体移送用ベルトコンベアで
ある。５，６，７，８および９は造粒体投入口で
ある。造粒体投入口５，６，７および８は、横断
面が矩形である貯蔵庫１の各角部にそれぞれ配置
され、シユート１０，１１，１２および１３にそ
れぞれ接続されている。シユート１０，１１，１
２および１３は同一の構造であり貯蔵庫１内に配
置される。各シユートは、貯蔵庫１の内壁に沿つ
て配置され、貯蔵庫１の内壁に取付けられる支持
部材によつて支持される。シユート１０，１１，
１２および１３は、同一方向に傾斜している。こ
の傾斜角は、約38度が好ましい。造粒体投入口９
は、貯蔵庫１の軸心上に存在する。 In FIG. 1, 1 is a storage, 2 is a storage ceiling, and 3 and 4 are belt conveyors for transporting granules. 5, 6, 7, 8 and 9 are granule inlets. Granule input ports 5, 6, 7 and 8 are arranged at each corner of storage 1 having a rectangular cross section, and are connected to chutes 10, 11, 12 and 13, respectively. Shoot 10, 11, 1
2 and 13 have the same structure and are placed inside the storage 1. Each chute is arranged along the inner wall of the storage 1 and supported by a support member attached to the inner wall of the storage 1. Shoot 10, 11,
12 and 13 are inclined in the same direction. This angle of inclination is preferably about 38 degrees. Granule input port 9
exists on the axis of the storage 1.
沸騰水型原子力発電所から発生した硫酸ナトリ
ウムを主成分となる再生廃液は、遠心薄膜乾燥機
で粉体にされる。この粉体は、造粒機にて圧縮成
形され、造粒体となる。造粒体は、造粒体移送用
ベルトコンベア３によつて貯蔵庫１上まで運ばれ
る造粒体は、貯蔵庫１上で造粒体移送用ベルトコ
ンベア４に移され、造粒体投入口５内に投入され
る。造粒体は、シユート１０の上面に沿つて滑り
落ち、貯蔵庫１の底面に達する。造粒体をこのよ
うにして貯蔵庫１内に充填することによつて、特
願昭54−53088号明細書の第１０図、第１１図に
記載されているように、シユート１０に沿つて貯
蔵庫１の底面より造粒体が充填されていく。シユ
ート１０，１１，１２および１３には、貯蔵庫１
の内壁および中心部に面する側にそれぞれ側壁が
存在し、後者の側に存在する側壁の高さは、前者
の側に存在する側壁の高さよりも低くなつてい
る。このため、造粒体は、特願昭54−43088号明
細書の第１２図、第１３図に記載されているよう
にシユートから貯蔵庫１の中心部に向つて落下す
る。この時、造粒体投入口６，７，８および９
は、放射性物質の拡散を防止するために、ハツチ
で塞がれている。 Recycled waste fluid, mainly composed of sodium sulfate, generated from boiling water nuclear power plants is turned into powder using a centrifugal thin film dryer. This powder is compression-molded using a granulator to form granules. The granules are transported to the top of the storage 1 by the belt conveyor 3 for transporting granules.The granules are transferred to the belt conveyor 4 for transporting the granules on the storage 1, and then placed in the granule input port 5. will be put into the The granules slide down along the top surface of the chute 10 and reach the bottom surface of the storage 1. By filling the storage 1 with the granules in this manner, the storage 1 is filled along the chute 10 as shown in FIGS. 10 and 11 of Japanese Patent Application No. 54-53088. The granules are filled from the bottom of 1. Chutees 10, 11, 12 and 13 have storage 1
There are side walls on the inner wall and on the side facing the center, respectively, and the height of the side wall on the latter side is lower than the height of the side wall on the former side. Therefore, the granules fall from the chute toward the center of the storage 1, as shown in FIGS. 12 and 13 of Japanese Patent Application No. 54-43088. At this time, granule input ports 6, 7, 8 and 9
are sealed with hatches to prevent the spread of radioactive materials.
造粒体投入口５からの貯蔵庫１内への造粒体の
充填が終ると、ベルトコンベア４を造粒体投入口
９を中心として水平方向に回転移動させて、造粒
体投入口６，７および８のうちのひとつより前述
したように造粒体を貯蔵庫１内に充填する。この
ようにして貯蔵庫１の角部に存在する造粒体投入
口５，６，７および８からの造粒体の投入が終了
すると、造粒体移送用ベルトコンベア４を取りは
ずして、造粒体移送用ベルトコンベア３より、直
接、造粒体投入口９に造粒体を投入する。造粒体
投入口９にはシユートが接続されていないが、シ
ユート１０，１１，１２および１３によつて貯蔵
庫１の周辺部から充填された造粒体によつて貯蔵
庫１内に充填された造粒体の層の上面は上昇して
おり、造粒体投入口９から貯蔵庫１内に投入され
た造粒体の破損は防止できる。 When the filling of the granules into the storage 1 from the granule input port 5 is completed, the belt conveyor 4 is rotated horizontally around the granule input port 9, and the granule input port 6, The granules are filled into the storage 1 as described above from one of 7 and 8. When the granules have been input from the granules input ports 5, 6, 7, and 8 located at the corners of the storage 1 in this way, the belt conveyor 4 for transporting the granules is removed, and the granules are removed. The granules are directly charged from the transfer belt conveyor 3 to the granule input port 9. Although no chute is connected to the granule inlet 9, the granules filled into the storage 1 by the granules filled from the periphery of the storage 1 through the chute 10, 11, 12, and 13. The upper surface of the granule layer is raised, and damage to the granules fed into the storage 1 from the granule inlet 9 can be prevented.
以上のような貯蔵庫１内への造粒体の充填操作
により、造粒体の山の頂部は、貯蔵庫１内の５箇
所、すなわち、貯蔵庫１周辺の４個所の角部と、
貯蔵庫１の中央部の１箇所に存在することにな
る。これは、造粒体の充填効率を著しく高めるこ
とになる。また、造粒体移送用ベルトコンベア４
を回転させて造粒体を供給することにより、簡単
かつ確実に造粒体を各投入口に分配することがで
きる。 By filling the granules into the storage 1 as described above, the tops of the granules are located at five locations in the storage 1, that is, at four corners around the storage 1;
It will exist at one location in the center of the storage 1. This will significantly increase the filling efficiency of the granules. In addition, a belt conveyor 4 for transporting granules
By rotating and supplying the granules, the granules can be easily and reliably distributed to each input port.
ここで、造粒体を充填した貯蔵庫１の縦断面を
第２図に示す。 Here, FIG. 2 shows a longitudinal section of the storage 1 filled with granules.
第２図よりわかるように、前述の造粒体投入操
作により貯蔵庫１内には効率良く造粒体２１が充
填される。貯蔵庫１の周辺に存在する頂部２１Ａ
は、造粒体投入口５，６，７，８から投入された
造粒体によつて形成されたものであり、貯蔵庫１
の中心部に存在する頂部２１Ｂは造粒体投入口９
から投入された造粒体によつて形成されたもので
ある。また、充填された造粒体の安息角α及びβ
は造粒体の成分、形状により異なり、本実施例で
は30〜40度である。 As can be seen from FIG. 2, the storage 1 is efficiently filled with the granules 21 by the above-described granule charging operation. Top portion 21A existing around storage 1
is formed by the granules input from the granule input ports 5, 6, 7, and 8, and is
The top portion 21B located at the center of the granule inlet 9
It is formed from granules introduced from Also, the angles of repose α and β of the filled granules
varies depending on the components and shape of the granules, and is 30 to 40 degrees in this example.
次に、第３図Ａ，Ｂに、第１図に示される貯蔵
庫１内のシユートの配置を示す。 Next, FIGS. 3A and 3B show the arrangement of chute inside the storage 1 shown in FIG. 1.
シユート１０，１１，１２，１３はそれぞれ貯
蔵庫１の天井２の四隅に設置された造粒体投入口
５，６，７，８に接続され、貯蔵庫１の内壁に沿
つて下降し、貯蔵庫１の底面に至る。貯蔵庫１の
角部では、造粒体がシユート側壁に衝突して破損
あるいは飛び出ることを防ぐ為にゆるやかな円弧
を描いている。シユートの傾斜角度θは造粒体の
成分、形状によつて異なり、本実施例では38度で
ある。 The chute 10 , 11 , 12 , 13 is connected to the granule input ports 5 , 6 , 7 , 8 installed at the four corners of the ceiling 2 of the storage 1 , respectively, and descends along the inner wall of the storage 1 . It reaches the bottom. At the corners of the storage 1, gentle arcs are drawn to prevent the granules from colliding with the side walls of the chute and being damaged or flying out. The inclination angle θ of the chute varies depending on the components and shape of the granules, and in this example, it is 38 degrees.
シユートを壁面に沿つて設置することにより、
造粒体を貯蔵庫１から取り出す操作の障害となる
ことを防止している。また、シユートは駆動部が
ない為、故障の心配がない。 By installing the chute along the wall,
This prevents the granules from becoming a hindrance to the operation of taking them out from the storage 1. Also, since the chute does not have a driving part, there is no need to worry about it breaking down.
尚、シユート断面は、内壁に高さが外壁の高さ
より低くしてあり、特願昭54−43088号に記述さ
れた構造に従つている。 The cross section of the chute has an inner wall that is lower in height than the outer wall, and follows the structure described in Japanese Patent Application No. 1988-43088.
第４図に本発明の他の実施例を示す。 FIG. 4 shows another embodiment of the invention.
本実施例では、貯蔵庫３１の大きさに合わせ
て、投入シユート３８，３９の２基を使用してい
る。投入操作は前記実施例と同じである。 In this embodiment, two input chutes 38 and 39 are used depending on the size of the storage 31. The charging operation is the same as in the previous embodiment.
本実施例のように、投入シユート基数あるいは
投入口設置位置を貯蔵庫の大きさ、形状に合わせ
て変更できることも本発明の特徴である。 Another feature of the present invention is that, as in this embodiment, the number of input chute bases or the installation position of the input chute can be changed in accordance with the size and shape of the storage.
以上述べたように、本発明によれば、貯槽の各
各の角部付近に設けた投入口から貯蔵庫内壁に沿
つて傾斜するようにシユートを配置したので、放
射性廃棄物の造粒体を貯蔵庫に投入の際、造粒体
に作用する衝撃を緩和することができ、これによ
り造粒体の破損を防止できる効果がある。また、
本発明によれば、貯蔵庫内に可動部分などを設け
ることなく貯蔵庫内への造粒体の充填効率を該貯
蔵庫の大きさ、形状にかかわらず向上することが
できるという効果が得られる。
As described above, according to the present invention, the chute is arranged so as to be inclined along the inner wall of the storage from the input port provided near each corner of the storage tank. The impact acting on the granules can be alleviated when the granules are added to the granules, which has the effect of preventing damage to the granules. Also,
According to the present invention, it is possible to improve the filling efficiency of granules into the storage without providing any movable parts within the storage, regardless of the size and shape of the storage.
第１図は本発明の好適な一実施例に用いられる
貯蔵庫の斜視図、第２図は第１図の貯蔵庫内にお
ける造粒体の充填状態を示す説明図、第３図は第
１図に示す貯蔵庫内部のシユートの配置を示すも
ので、Ａは平面図およびＢは側面図、第４図は本
発明の他の実施例の斜視図である。
１……貯蔵庫、３，４……造粒体移送用ベルト
コンベア、５，６，７，８，９……造粒体投入
口、１０，１１，１２，１３……シユート。
FIG. 1 is a perspective view of a storage used in a preferred embodiment of the present invention, FIG. 2 is an explanatory diagram showing the filling state of granules in the storage in FIG. 1, and FIG. 4 is a plan view, B is a side view, and FIG. 4 is a perspective view of another embodiment of the present invention. 1... Storage, 3, 4... Belt conveyor for transporting granules, 5, 6, 7, 8, 9... Granule inlet, 10, 11, 12, 13... Shoot.
Claims (1)
放射性廃棄物用貯蔵庫において、上記側壁に沿つ
て一方向に傾斜した固定シユートが配置され、上
記固定シユートの投入口は上記各側壁の上端部に
設けられ、上記固定シユートの出口は当該固定シ
ユートの投入口が設けられた側壁とは異なる側壁
の下部に設けられていることを特徴とする放射性
廃棄物用貯蔵庫。1. In a storage for radioactive waste having a bottom surface and at least three or more side walls, a fixed chute inclined in one direction is arranged along the side wall, and an input port of the fixed chute is provided at the upper end of each of the side walls. A radioactive waste storage facility characterized in that the outlet of the fixed chute is provided at a lower part of a side wall different from the side wall in which the input port of the fixed chute is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP187880A JPS5698700A (en) | 1980-01-10 | 1980-01-10 | Radioactive waste processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP187880A JPS5698700A (en) | 1980-01-10 | 1980-01-10 | Radioactive waste processing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5698700A JPS5698700A (en) | 1981-08-08 |
| JPH0156718B2 true JPH0156718B2 (en) | 1989-12-01 |
Family
ID=11513810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP187880A Granted JPS5698700A (en) | 1980-01-10 | 1980-01-10 | Radioactive waste processing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5698700A (en) |
-
1980
- 1980-01-10 JP JP187880A patent/JPS5698700A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5698700A (en) | 1981-08-08 |
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