JPH0769469B2 - Waste treatment device using balls and method for discharging balls from this device - Google Patents

Waste treatment device using balls and method for discharging balls from this device

Info

Publication number
JPH0769469B2
JPH0769469B2 JP1176011A JP17601189A JPH0769469B2 JP H0769469 B2 JPH0769469 B2 JP H0769469B2 JP 1176011 A JP1176011 A JP 1176011A JP 17601189 A JP17601189 A JP 17601189A JP H0769469 B2 JPH0769469 B2 JP H0769469B2
Authority
JP
Japan
Prior art keywords
ball
balls
waste treatment
product
reaction furnace
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 - Lifetime
Application number
JP1176011A
Other languages
Japanese (ja)
Other versions
JPH0341398A (en
Inventor
孫次 岡本
幸二 菱川
直彦 桜本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP1176011A priority Critical patent/JPH0769469B2/en
Priority to KR1019900009949A priority patent/KR950011244B1/en
Publication of JPH0341398A publication Critical patent/JPH0341398A/en
Publication of JPH0769469B2 publication Critical patent/JPH0769469B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21FPROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04Treating liquids

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Crushing And Grinding (AREA)
  • Processing Of Solid Wastes (AREA)

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は例えば放射性液体廃棄物の処理に使用されるボ
ールを用いた廃棄物処理装置及びこの装置からのボール
排出方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment apparatus using balls used for treating radioactive liquid waste and a method for discharging balls from the apparatus.

(従来の技術) 原子力発電所のような原子力施設から排出される放射性
廃棄物の処理には、内部に廃棄物処理用のボールが充填
された外部加熱式の反応炉の適用が考えられている。こ
の廃棄物処理装置は反応炉の上部から放射性液体廃棄物
を供給しつつボールの表面で分解と反応を行わせ、生成
物はボールの攪拌に伴って次第に下方へ落下して反応炉
下部の生成物排出ラインから取り出される構造の装置で
ある。ところがこのボールは次第に摩耗するために定期
的に交換する必要があり、その際には反応炉のボール充
填層からボールを放出しなければならない。
(Prior Art) For the treatment of radioactive waste discharged from a nuclear facility such as a nuclear power plant, it is considered to apply an externally heated reactor in which balls for waste treatment are filled inside. . This waste treatment device causes radioactive liquid waste to be decomposed and reacted on the surface of the ball while supplying radioactive liquid waste from the upper part of the reaction furnace, and the product gradually drops downward as the ball is agitated and forms in the lower part of the reaction furnace. It is a device with a structure that is taken out from the product discharge line. However, since the balls gradually wear out, they must be regularly replaced, and at that time, the balls must be discharged from the ball packed bed of the reactor.

このためのボール排出方法としては、反応炉の上部から
吸引用のノズルによりボールを一つずつ真空吸引する方
法がある。ところがこの方法では吸引用のノズルを動か
すために作業員がボールに接近して作業しなければなら
ず、放射線被爆を受けるおそれがあった。またこれを避
けるために遠隔操作とする場合には、複雑な動きを行わ
せるために駆動装置が複雑化し、製造コストも高価なも
のとなる問題があった。
As a ball discharging method for this purpose, there is a method of vacuum sucking the balls one by one from the upper part of the reaction furnace by a suction nozzle. However, in this method, the worker has to work close to the ball in order to move the suction nozzle, which may cause radiation exposure. Further, in order to avoid this, when the remote control is performed, there is a problem that the driving device becomes complicated to perform a complicated movement and the manufacturing cost becomes high.

(発明が解決しようとする課題) 本発明は上記したような従来の問題点を解決して、摩耗
したボールの取り出しを放射線被爆を受けるおそれなく
容易に行うことができ、しかも製造コストも安価な、ボ
ールを用いた廃棄物処理装置及びこの装置からのボール
排出方法を提供するために完成されたものである。
(Problems to be Solved by the Invention) The present invention solves the conventional problems as described above, and it is possible to easily take out a worn ball without fear of being exposed to radiation, and at a low manufacturing cost. The present invention has been completed to provide a waste treatment device using balls and a method for discharging balls from this device.

(課題を解決するための手段) 上記の課題は、内部に廃棄物諸利用のボールが充填され
た外部加熱式の反応炉の充填層下部に設けられた多孔板
の中心軸受部に常時は攪拌軸により封鎖されているボー
ル落下孔を形成するとともに、反応炉下部の生成物排出
ラインの途中にはボールと生成物との分離板及びボール
排出用の扉を設けたことを特徴とするボールを用いた廃
棄物処理装置によって解決することができる。
(Means for Solving the Problem) The above-mentioned problem is that the central bearing portion of the perforated plate provided under the packed bed of the external heating type reactor in which the balls for various wastes are packed is constantly stirred. In addition to forming a ball drop hole that is blocked by a shaft, a ball-product separation plate and a ball discharge door are provided in the middle of the product discharge line at the bottom of the reactor. It can be solved by the waste treatment equipment used.

また上記の課題は、内部に廃棄物処理用のボールが充填
された外部加熱式の反応炉の充填層下部に設けられた多
孔板の中心軸受部に常時は攪拌軸により封鎖されている
ボール落下孔を形成しておき、ボール交換時には攪拌軸
を上昇させてボールを反応炉下部へ落下させ、生成物排
出ラインの途中に設けられた分離板によりボールと生成
物とを外部へ取り出すことを特徴とするボールを用いた
廃棄物処理装置からのボール排出方法によって解決する
ことができる。
Further, the above-mentioned problem is caused by a ball falling that is always blocked by a stirring shaft in the central bearing part of the perforated plate provided in the lower part of the packed bed of the external heating type reactor in which balls for waste treatment are packed. The holes are formed, and when exchanging the balls, the stirring shaft is raised to drop the balls into the lower part of the reaction furnace, and the balls and the products are taken out by a separation plate provided in the middle of the product discharge line. Can be solved by a method of discharging a ball from a waste treatment device using a ball.

以下に本発明を図示の実施例によって詳細に説明する。Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

(実施例) 第1図及び第2図において、(1)は外部加熱式の反応
炉であり、その上半部は内部に小径のボール(2)が多
数充填された充填層(3)とされている。充填層(3)
の外側の炉壁にはヒータ(4)が設置されており、また
炉体の上面にはボール投入孔(5)、処理液入口(6)
等が設けられている。
(Example) In FIGS. 1 and 2, (1) is an external heating type reaction furnace, and an upper half part thereof is a packed bed (3) filled with a large number of small balls (2) inside. Has been done. Packed bed (3)
A heater (4) is installed on the outside of the furnace wall, and a ball charging hole (5) and a processing liquid inlet (6) are provided on the upper surface of the furnace body.
Etc. are provided.

(7)は充填層(3)の内部のボール(2)を攪拌する
ためのスパイラル状の攪拌翼である。この攪拌翼(7)
は垂直な攪拌軸(8)により回転されるものであるが、
その駆動源は炉体の上方(図示せず)に設けられてお
り、攪拌軸(8)の上端はカップリングを介してこの駆
動源と連結されている。またこの攪拌軸(8)は垂直方
向に昇降することができる構造となっている。
(7) is a spiral stirring blade for stirring the balls (2) inside the packed bed (3). This stirring blade (7)
Is rotated by a vertical stirring shaft (8),
The drive source is provided above the furnace body (not shown), and the upper end of the stirring shaft (8) is connected to this drive source via a coupling. Further, the stirring shaft (8) has a structure capable of moving vertically.

充填層(3)の下部には目皿と呼ばれる多孔板(9)が
設けられており、ボール(2)の表面から剥離された生
成物がその孔部から反応炉下部の生成物排出口(10)に
向かって落下する構造となっているが、本発明において
は第2図に示さるように、その多孔板(9)の中心軸受
部に常時は攪拌軸(8)の下端によって封鎖されている
ボール落下孔(11)が形成されている。ボール落下孔
(11)の径は当然にボール(2)の径よりも十分に大き
く、攪拌軸(8)を上昇させてボール落下孔(11)を開
孔させたときにはボール(2)を下方へ落下させること
ができるものである。
A perforated plate (9) called a plate is provided in the lower part of the packed bed (3), and the product separated from the surface of the ball (2) is discharged through the hole of the product discharge port (below the reactor). Although it has a structure of falling toward 10), in the present invention, as shown in FIG. 2, the central bearing portion of the perforated plate (9) is always closed by the lower end of the stirring shaft (8). A ball drop hole (11) is formed. The diameter of the ball drop hole (11) is naturally much larger than the diameter of the ball (2), and when the stirring shaft (8) is raised to open the ball drop hole (11), the ball (2) is moved downward. It can be dropped into.

生成物排出口(10)の下部には生成物排出ライン(12)
が連結されているが、本発明においてはこの生成物排出
ライン(12)の途中にボール(2)と生成物との分離板
(13)と、ボール排出用の扉(14)とが設けられてい
る。分離板(13)は図示のような多孔板からなるもの
で、ボール(2)の表面から剥離された粉体状の生成物
のみを下方に落下させ、ボール(2)をその上面に残す
割合を持つ。またボール排出用の扉(14)は分離板(1
3)上に残されたボール(2)を外部に取り出すための
ものである。
The product discharge line (12) is located below the product discharge port (10).
In the present invention, a separating plate (13) for separating the ball (2) from the product and a door (14) for discharging the ball are provided in the middle of the product discharging line (12). ing. The separating plate (13) is made of a perforated plate as shown in the figure, and only the powdery product separated from the surface of the ball (2) is dropped downward and the ball (2) is left on the upper surface thereof. have. In addition, the door (14) for discharging the ball has a separating plate (1
3) It is for taking out the ball (2) left on the outside.

なお、(15)は反応炉(1)の内部からガスのみを分離
して外部に排出するための多数の焼結金属フィルタであ
るが、その位置については適宜変更が可能である。
Although (15) is a large number of sintered metal filters for separating only the gas from the inside of the reaction furnace (1) and discharging it to the outside, its position can be appropriately changed.

(作用) このように構成された本発明のボールを用いた廃棄物処
理装置により放射性液体廃棄物の処理を行うには、攪拌
翼(7)によりボール(2)を攪拌しつつ充填層(3)
の上部から放射性液体廃棄物を供給してボール(2)の
表面で分解と反応とを進行させ、生成物は多孔板(9)
から下方へ落下させる。このときにはボール落下孔(1
1)は攪拌軸(8)により封鎖されているので、ボール
(2)が落下することはない。
(Operation) In order to treat the radioactive liquid waste by the waste treatment apparatus using the balls of the present invention thus configured, the packed bed (3) is stirred while stirring the balls (2) by the stirring blade (7). )
The radioactive liquid waste is supplied from the upper part of the plate to promote decomposition and reaction on the surface of the ball (2), and the product is the porous plate (9).
From below. At this time, the ball drop hole (1
Since 1) is blocked by the stirring shaft (8), the balls (2) will not fall.

このようにして放射性液体廃棄物の処理を一定期間行う
と次第にボール(2)が摩耗してくるので、攪拌軸
(8)を例えば200mm程度上昇させて多孔板(9)の中
心軸受部に形成されているボール落下孔(10)を開孔さ
せる。すると充填層(3)内のボール(2)は自重によ
ってこのボール落下孔(11)から下方へ落下し、生成物
排出ライン(12)の途中に設けられた分離板(13)によ
りボール(2)と生成物とが分離される。その後、ボー
ル排出用の扉(14)を開き、ボール(2)のみを外部へ
取り出せばよい。これらの作業は全て遠隔操作によって
容易に行うことができるから、作業員が放射線被爆を受
けるおそれを完全になくすることができることとなる。
When the radioactive liquid waste is treated in this way for a certain period of time, the balls (2) will gradually wear out, so that the stirring shaft (8) is raised by, for example, about 200 mm and formed on the central bearing portion of the perforated plate (9). The ball drop hole (10) that has been formed is opened. Then, the balls (2) in the packed bed (3) fall downward from the ball drop holes (11) by their own weight, and the balls (2) are dropped by the separation plate (13) provided in the middle of the product discharge line (12). ) And the product are separated. After that, the door (14) for discharging the ball may be opened and only the ball (2) may be taken out. Since all of these operations can be easily performed by remote control, it is possible to completely eliminate the risk of radiation exposure to workers.

(発明の効果) 本発明は以上の説明から明らかなように、放射性液体廃
棄物等の処理を従来通り行うことができることは勿論、
ボール交換時には摩設したボールの取り出しを遠隔操作
によって放射線被爆を受けるおそれなく容易に行うこと
ができる。しかも本発明の装置は従来のような複雑な動
きを必要としないので製造コストも安価なものである。
(Effects of the Invention) As is apparent from the above description, the present invention can, of course, perform the treatment of radioactive liquid waste and the like as usual.
At the time of ball replacement, the abraded ball can be easily taken out without the risk of being exposed to radiation by remote control. Moreover, since the device of the present invention does not require complicated movements as in the conventional device, the manufacturing cost is low.

よって本発明は従来の問題点を一掃したボールを用いた
廃棄物処理装置及びこの装置からのボール排出方法とし
て、産業の発展に寄与するところは極めて大きいもので
ある。
Therefore, the present invention, as a waste treatment apparatus using a ball that eliminates the conventional problems and a method of discharging a ball from this apparatus, greatly contributes to industrial development.

【図面の簡単な説明】[Brief description of drawings]

第1図は本発明の実施例を示す一部切欠斜視図、第2図
はその概略的な縦断面図である。 (1):反応炉、(2):ボール、(3):充填層、
(8):攪拌軸、(9):多孔板、(11):ボール落下
孔、(13):分離板、(14):扉。
FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention, and FIG. 2 is a schematic vertical sectional view thereof. (1): reactor, (2): balls, (3): packed bed,
(8): Stirrer, (9): Perforated plate, (11): Ball drop hole, (13): Separation plate, (14): Door.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】内部に廃棄物処理用のボール(2)が充填
された外部加熱式の反応炉(1)の充填層(3)下部に
設けられた多孔板(9)の中心軸受部に常時は攪拌軸
(8)により封鎖されているボール落下孔(11)を形成
するとともに、反応炉下部の生成物排出ライン(12)の
途中にはボール(2)と生成物との分離板(13)及びボ
ール排出用の扉(14)を設けたことを特徴とするボール
を用いた廃棄物処理装置。
1. A central bearing portion of a perforated plate (9) provided below a packed bed (3) of an external heating type reaction furnace (1) having balls (2) for waste treatment filled therein. A ball drop hole (11), which is normally closed by a stirring shaft (8), is formed, and a separation plate for separating the ball (2) from the product (in the middle of the product discharge line (12) below the reaction furnace ( 13) and a ball discharge door (14) are provided, which is a waste treatment device using balls.
【請求項2】内部に廃棄物処理用のボール(2)が充填
された外部加熱式の反応炉(1)の充填層(3)下部に
設けられた多孔板(9)の中心軸受部に常時は攪拌軸
(8)により封鎖されているボール落下孔(11)を形成
しておき、ボール交換時には攪拌軸(8)を上昇させて
ボール(2)を反応炉下部へ落下させ、生成物排出ライ
ン(12)の途中に設けられた分離板(13)によりボール
(2)と生成物とを異なる排出口より外部へ取り出すこ
とを特徴とするボールを用いた廃棄物処理装置からのボ
ール排出方法。
2. A central bearing portion of a perforated plate (9) provided under a packed bed (3) of an external heating type reaction furnace (1) having balls (2) for waste treatment filled therein. The ball drop hole (11), which is normally closed by the stirring shaft (8), is formed, and when the ball is replaced, the stirring shaft (8) is raised to drop the ball (2) into the lower part of the reaction furnace. Discharge of the ball from the waste treatment device using the ball, characterized in that the separation plate (13) provided in the middle of the discharge line (12) takes out the ball (2) and the product to the outside from different discharge ports. Method.
JP1176011A 1989-07-07 1989-07-07 Waste treatment device using balls and method for discharging balls from this device Expired - Lifetime JPH0769469B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1176011A JPH0769469B2 (en) 1989-07-07 1989-07-07 Waste treatment device using balls and method for discharging balls from this device
KR1019900009949A KR950011244B1 (en) 1989-07-07 1990-07-02 Radiocative waste management device & discharge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1176011A JPH0769469B2 (en) 1989-07-07 1989-07-07 Waste treatment device using balls and method for discharging balls from this device

Publications (2)

Publication Number Publication Date
JPH0341398A JPH0341398A (en) 1991-02-21
JPH0769469B2 true JPH0769469B2 (en) 1995-07-31

Family

ID=16006161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1176011A Expired - Lifetime JPH0769469B2 (en) 1989-07-07 1989-07-07 Waste treatment device using balls and method for discharging balls from this device

Country Status (2)

Country Link
JP (1) JPH0769469B2 (en)
KR (1) KR950011244B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5887710A (en) * 1997-02-24 1999-03-30 Clemco Products, Inc. Garment bag and hanger support
CN112013402A (en) * 2020-08-28 2020-12-01 飞潮(无锡)过滤技术有限公司 Ball-milling type pyrolysis activation furnace

Also Published As

Publication number Publication date
KR910003684A (en) 1991-02-28
KR950011244B1 (en) 1995-09-29
JPH0341398A (en) 1991-02-21

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