JPS62100700A

JPS62100700A - Method and device for treating radioactive waste

Info

Publication number: JPS62100700A
Application number: JP24110285A
Authority: JP
Inventors: 片多　勝男
Original assignee: IHI Corp
Current assignee: IHI Corp
Priority date: 1985-10-28
Filing date: 1985-10-28
Publication date: 1987-05-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】「産業上の利用分野」本発明は、固体廃棄物の処理方法皮びその装置に係り、
特に放射性を有する固体廃棄物を高圧縮減容する際に、
総線量及びドラム缶の空隙を考・ひして、充填率を向上
させる技術に関するものである。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to an apparatus for a solid waste treatment method,
Especially when compressing and reducing the volume of radioactive solid waste,
This relates to technology that improves the filling rate by considering the total dose and the voids in the drum.

「従来技術」一般に、原子力発電関連分野で発生した放射性物質ある
いは放射性物質で汚染された固体廃棄物は、貯蔵や運搬
のために、体積を減少させるいわゆる減容処理を施した
後、収容容器内に密封することが行なわれる。この場合
、切り粉などの放射性粒体の飛散を防止する目的で固体
廃棄物を圧縮することによって容積を減少させる手段が
有利である。``Prior art'' In general, radioactive materials or solid waste contaminated with radioactive materials generated in fields related to nuclear power generation are placed in storage containers after being subjected to so-called volume reduction treatment for storage and transportation. It is then sealed. In this case, it is advantageous to reduce the volume by compressing the solid waste in order to prevent the scattering of radioactive particles such as chips.

「発明が解決し、ようとする問題点」しかしながら、固体廃棄物を圧縮して空のドラム缶に収
納する場合であると、被圧縮物の形状や材料構成によっ
て圧縮程度が相異し、例えば強度の大きな金属材料では
寸法変化が少なく、空間の多い保温材では寸法変化が大
きくなる等、圧縮比のばらつきが生じる。また、固体廃
棄物を充填したドラム缶の総線量は、圧縮比と直接的に
は無関係となるとともに、多くのばらつきを有すること
が少なくない。したがって、圧縮減容物を詰め合わせる
場合、ドラム缶の空きスペースの有効活用を図ることが
必要であるが、詰め合せによって線量が上昇するため、
圧縮減容処理物の管理が困難になるという問題点をとも
なうものであった。``Problems to be solved and attempted by the invention'' However, when solid waste is compressed and stored in empty drums, the degree of compression varies depending on the shape and material composition of the object to be compressed. A metal material with a large dimensional change will have little dimensional change, whereas a heat insulating material with a large space will have a large dimensional change, resulting in variations in compression ratio. In addition, the total dose of a drum filled with solid waste is not directly related to the compression ratio, and often varies widely. Therefore, when assembling compressed volume-reduced materials, it is necessary to make effective use of the empty space in the drum, but as the assembling increases the dose,
This was accompanied by the problem that it became difficult to manage the compressed and volume-reduced product.

本発明は、このような問題点を有効に解決することを目
的とするものである。The present invention aims to effectively solve these problems.

「問題点を解決するための手段」７放射性廃棄物入り容器の放射線レベルを測定し、その
放射線レベルが保管基準値未満であるものを圧縮減容処
理するとともに、該圧縮減容処理物の高さを測定１．て
その高さ寸法が保管基準値未１１！４である場合につし
）で、容器に収容しておいた他の圧縮減容処理物との間
におけろ放射線量及び高さ寸法との和を算出し、その和
がそれぞれ放射線レベル及び高さ寸１去の保管基準値未
満であるときに、圧縮減容処理物を前記能の容器にｉ■
積状態に収容することを特徴としており、ざらに、この
実施のために、放射性廃棄物入り容器の放射線レベル測
定装置と、該放射線レベル測定装置のデータが保管基亭
値末、′Ｉ４であるものを受ＩＪ入れ圧縮減容処理する
装置と、該圧縮減容処理装置により処理された圧縮減容
処理物の高さ測定器と、該高さ測定器のデータが保管基
準値未満であるものを他の圧縮減容処理物に詰め合わせ
るだめの搬出手段とを連設して処理装置を構成するよう
にし、ているものである。"Means to solve the problem" 7. Measure the radiation level of containers containing radioactive waste, compress and reduce the volume of containers whose radiation level is less than the storage standard value, and increase the height of the compressed and volume-reduced product. Measure 1. If the height dimension is less than the storage standard value of 11!4, then the radiation dose and height dimension should be Calculate the sum, and when the sum is less than the storage standard values for radiation level and height, respectively, place the compressed and volume-reduced product in a container with the above capacity.
In general, for this implementation, a radiation level measuring device for a container containing radioactive waste and a device whose data is at the end of storage standard value 'I4' are required. A device for receiving IJ and compressing and reducing the volume, a height measuring device for the compressed and volume-reduced material processed by the compression and volume reducing processing device, and a device whose data on the height measuring device is less than the storage standard value. A processing apparatus is constructed by connecting a conveyance means for assembling other compressed and volume-reduced products to a container.

、「実施例−１図面は、本発明に係る放射性廃棄物の処理方法及びその
装置の一実施例を示すものであり、第１図は、放射性廃
棄物の処理方法における工程例のフローチャート、第２
図ないし第４図は処理工程を実施する場合に好適な装置
の例を表している。, "Example-1 The drawings show an example of the radioactive waste processing method and its apparatus according to the present invention, and FIG. 2
Figures 4 through 4 represent examples of apparatus suitable for carrying out the processing steps.

以下、第１図に８１ないしＳ１９で示すステップの進行
とともに、処理方法の工程例と、その実施のための第２
図ないし第４図に示す装置例とを平行して説明する。Below, along with the progress of steps 81 to S19 in FIG.
The apparatus examples shown in the figures to FIG. 4 will be explained in parallel.

ｒｓｌｊ・第２図に示す容器供給エリアｌから、各放射
性廃棄物入り容器２をコンベア等の搬送手段３によって
、矢印のように処理ラインに沿って送り、「Ｓ２　」・第１の線量測定器４によって、放射性廃棄
物入り容器２の放射線■（γＡ）を測定し、そのデータ
を第３図に示すコンピュータ５に送って記憶させるとと
もに、「Ｓ３　」・放射線量（γＡ）が設定放射線レベル（保
管すべき放射線量）未満であるかどうかを判別し、「Ｓ４　」・その判断結果がＮＯ１即ち、保管すべき放
射線量に達している場合は、コンピータ５の指令により
後述するように搬送手段を作動さ什て、容器保管エリア
６に送り出し、保管庫等に搬送して保管処理を行なう。From the container supply area l shown in FIG. , the radiation (γA) of the radioactive waste container 2 is measured, and the data is sent to the computer 5 shown in Figure 3 to be stored. ``S4'' - If the judgment result is NO1, that is, the radiation dose that should be stored, it is determined whether the radiation dose is less than the radiation dose that should be stored. Then, the container is sent to the container storage area 6 and transported to a storage warehouse or the like for storage processing.

「Ｓ５　」・前記Ｓ３において、判断結果かＹ　ＥＳで
ある場合は、放射性廃棄物入り容器２を搬送手段３によ
って高圧縮プレス等の圧縮減容装置７に供給して、圧縮
による減容処理を行なう。該圧縮減容装置７は、例えば
本出願人が特顆昭５Ｌ−０７８８８７号において提案し
た「固体廃棄物の圧縮減容装置」等が使用され、被圧縮
物（放射性廃棄物入り容器２　）の高さ寸法等を圧縮に
より減少させるらのである。また、第２図例では搬送手
段３ど圧縮減容装置７との間に、切り替え機８とリフタ
ー等の連結機９とが設けられて、放射性廃棄物入り容器
２を載１８シた状態で、圧縮減容装置７・＼送り込むよ
うにな−）でいる。"S5" - If the judgment result is YES in the above S3, the container 2 containing radioactive waste is supplied to a compression volume reduction device 7 such as a high compression press by the conveyance means 3, and volume reduction processing by compression is performed. . As the compression volume reduction device 7, for example, the “compression volume reduction device for solid waste” proposed by the present applicant in Special Publication No. 5L-078887 is used, and the volume reduction device 7 is used to reduce the height of the material to be compressed (the container 2 containing radioactive waste). This is because the size etc. are reduced by compression. In addition, in the example shown in FIG. 2, a switching device 8 and a coupling device 9 such as a lifter are provided between the conveyance means 3 and the compression volume reduction device 7, and when the container 2 containing radioactive waste is loaded, Compression and volume reduction device 7.

ｒｓ６Ｊ・次いで、圧縮処理機７により圧縮されたもの
、即ち圧縮減容処理物Ａの高さ寸法（１（Ａ）を第１の
高さ寸法測定器１０により計測し、そのデータをコンピ
ュータ５に送って記憶させるとともに、「Ｓ７　」・高さ寸法が重積可能な寸法であるか、つま
り保管基準値未満であるかどうかを判別１２、「Ｓ８　
」・その判断結果がＮＯ１即ち、保管すべき高さに達し
ている場合は、コンピュータ５の指令により、他の連結
機１１と搬送手段１２とを作動させて、空容器貯留部１
３から、新しい空容器（ドラム缶）１４を圧縮減容装置
７の下部に供給して、保管すべき圧縮減容処理物Ａをそ
の中に収容し、「Ｓ９　」・さらに、圧縮減容処理物Ａを収容した空容
器１４をキャッピングマシン１５に送り込んでキャップ
をして密封し、前記Ｓ４と同様に搬送手段Ｉ２を作動さ
せて、容器保管エリア６に送り出し、保管庫等に搬送し
て保管処理を行なう。rs6J・Next, the height dimension (1 (A)) of the compressed volume-reduced product A, which is compressed by the compression processor 7, is measured by the first height dimension measuring device 10, and the data is sent to the computer 5. "S7" - Determine whether the height dimension is a size that allows stacking, that is, whether it is less than the storage standard value 12, "S8"
”・If the judgment result is NO1, that is, the height at which the container should be stored has been reached, the other coupling device 11 and conveyance means 12 are operated according to the command from the computer 5, and the empty container storage section 1 is operated.
3, a new empty container (drum) 14 is supplied to the lower part of the compression volume reduction device 7, and the compressed volume-reduced product A to be stored is stored therein. The empty container 14 containing A is sent to the capping machine 15, capped and sealed, and the conveying means I2 is operated in the same manner as in S4, and sent to the container storage area 6, and transported to a storage warehouse or the like for storage processing. Do this.

［５１０Ｊ・一方、Ｓ７において判断結果がＹＥＳ、即
ち、圧縮減容処理物Ａの高さ寸法が、保管基準値未満で
ある場合は、既に他の圧縮減容処理物Ｂを収容している
容器が、一時保管エリア１６にあるかどうかの判別を行
ない、ｒｓｌｌＪ・その判別結果がＮ　Ｏ１即ち、一時保管エ
リア１６に容器がない場合は、空容器貯留部１３から、
新ｊ５い空容器１４を引き出して、圧縮減容装置７から
圧縮減容処理物Ａをその中に落として収容し、ｒｓ１２Ｊ・一時保管エリア１６に送り込んで貯留して
おく。[510J・On the other hand, if the judgment result in S7 is YES, that is, the height dimension of the compressed volume-reduced product A is less than the storage standard value, the container that already contains another compressed volume-reduced product B is in the temporary storage area 16, and if the determination result is NO1, that is, there is no container in the temporary storage area 16, from the empty container storage section 13,
A new empty container 14 is pulled out, and the compressed and volume-reduced material A is dropped into it from the compression and volume reduction device 7, and is sent to the rs12J/temporary storage area 16 and stored therein.

ｒｓ１３Ｊ・また、ＳＩＯにおいてＹＥＳである場合は
、一時保管エリア１Ｇに貯留されているものの中に、さ
らに詰め込みが可能であるか、つまり、前記γＡ−ＨＡ
と他の圧縮減容処理物Ｆ３との放射線ｆｆｌ　、＆び高
さとの和を算出して比較し、追加重積可能かどうかを判
別し、ＮＯである場合はＳ１１及びＳ１２に準する処理
をする。rs13J・Also, if YES in SIO, whether it is possible to further stuff the items stored in the temporary storage area 1G, that is, the γA-HA
Calculate and compare the sum of the radiation ffl, & height of the other compressed and volume-reduced product F3, and determine whether additional stacking is possible. If NO, perform processing similar to S11 and S12. do.

ｒｓ１４Ｊ・また、Ｓ１３においてＹＥＳである場合は
、その該当する他の圧縮減容処理物Ｂを圧縮減容装置７
の下部に呼び出して、その中にγＡ・ＨＡのデータを有
する圧縮減容処理物Ａを重積状態に収容し、ｒｓ１５Ｊ・次いで、搬送手段１２を作動して詰め込み
高さ測定器１７に送り、該詰め込み高さ測定器１７にお
いて、重積状態における圧縮減容処理物Ａ−Ｈの高さ寸
法（ＨＢ）を計測し、そのデータをコンビコータ５に送
って記憶させるとともに、ｒｓ１６Ｊ・圧縮減容処理物Ａ−Ｂを合わせた高さ寸法
が、その上にさらに重積可能な寸法であるか、つまり、
まだ保管基準値未満であるかどうかを８７に準じて判別
し、ｒｓ１７Ｊ・Ｎｏである場合は、搬送手段１２を作動さ
せて、キャッピングマシンＩ５に送り込んでキャップを
して密封し、ｉＹｉ記Ｓ４と同様に容器保管エリア６に
送り出し、保管庫等に搬送して保管処理を行なう。rs14J・Also, if YES in S13, the corresponding other compressed and volume-reduced material B is compressed and volume-reduced by the compression and volume reduction device 7.
The compressed volume-reduced product A having the data of γA and HA is stored therein in a piled state, and the transport means 12 is operated to send it to the packing height measuring device 17. The packing height measuring device 17 measures the height dimension (HB) of the compressed volume-reduced products A-H in the stacked state, sends the data to the combi coater 5 and stores it, and also Is the combined height of the processed items A-B large enough to allow stacking on top of them? In other words,
Determine whether it is still below the storage standard value according to 87, and if it is rs17J/No, operate the conveying means 12, send it to the capping machine I5, cap it and seal it, and write it as iYi S4. Similarly, it is sent out to the container storage area 6 and transported to a storage warehouse or the like for storage processing.

ｒｓ１８Ｊ・また、Ｓ１６においてＹＥＳである場合は
、第２の線量測定器１８に圧縮減容処理物Ａ・Ｂの重積
物を送り込んで、その放射線量γＢを測定し、そのデー
タをコンピュータ５に送って記士筐させるととも（こ、ｒｓ１９ｊ・保管線量未満であるかどうかを判別し、Ｎ
Ｏ５つまり保管線量に達している場合は、Ｓ１７に帛じ
てキャッピングマシン１０に送り込んでキャップをして
密封し、容器保管エリア６に送り出し、保管庫等に搬送
して保管処理を行なう。また、ＹＥＳである場合は、Ｓ
１２に檗じて一時保管エリア１６に送り込んで貯留する
工程を繰り返すものである。rs18J・Also, if YES in S16, send the stack of compressed and volume-reduced products A and B to the second dosimeter 18, measure the radiation dose γB, and send the data to the computer 5. In addition to sending it to the recorder (this, determine whether it is less than the rs19j storage dose, and
If O5, that is, the storage dose has been reached, the container goes to S17 and is sent to the capping machine 10, capped and sealed, sent to the container storage area 6, and transported to a storage warehouse or the like for storage processing. Also, if YES, S
12, and the process of sending it to the temporary storage area 16 and storing it is repeated.

なお、図中符号１９は、コンピュータ５の指令によって
、搬送装置３・１２等を作動させるだめのコントローラ
である。また、前記線量測定器４・１８は、被測定物に
近接させるγ線量センサ２０等を備えてなるものである
。Note that the reference numeral 19 in the figure is a controller for operating the conveying devices 3, 12, etc. in response to instructions from the computer 5. Further, the dose measuring devices 4 and 18 are equipped with a γ-ray dose sensor 20 and the like which are brought close to the object to be measured.

以下、前記圧縮減容装置７について補足説明４″る。該
圧縮減容装置７は、第４図に示すように、被圧縮物を第
１段階の楕円柱状体に加工するための第１の圧縮機構２
１と、該楕円柱状体を第２段階の非真円柱状体に加工す
るための第２の圧縮機構２２とを配設し、該第２の圧縮
機構２２にその中に装填された非真円柱状体を軸方向に
圧縮するための第３の圧縮機構２３を連設ずろとともに
、第３の圧縮機構２３に円筒状加工ギャビテ、イ２４を
設置：ｌた基本構造である。また、第４図中において、
符号２５は固定型、２６は可動型、２７は液圧シリンダ
、２８は台車、２９は第２の固定型、３０は第２の可動
型、３１は第２の液圧シリンダ、３２は受は型、３３は
第３の可動型、３４は第３の液圧シリンダである。（以
下説明を略す）さらに、前記高さ寸法測定器ＩＯ及び詰
め込み高さ測定器１７は、直線的なピストンロッド等の
移動量の変化をローラ３５の回転に変え、該ローラ３５
の回転量をロータリーエンコーダ３６で検出して、これ
らのデータをコンピュータ５に記憶させ、各処理を実施
するものである。Supplementary explanation 4'' will be given below regarding the compression volume reduction device 7.The compression volume reduction device 7, as shown in FIG. Compression mechanism 2
1, and a second compression mechanism 22 for processing the elliptical columnar body into a second stage non-true circular columnar body, and the second compression mechanism 22 is provided with a non-true cylinder loaded therein. The basic structure includes a third compression mechanism 23 for compressing a cylindrical body in the axial direction, and a cylindrical processing gap 24 is installed in the third compression mechanism 23. Also, in Figure 4,
25 is a fixed type, 26 is a movable type, 27 is a hydraulic cylinder, 28 is a trolley, 29 is a second fixed type, 30 is a second movable type, 31 is a second hydraulic cylinder, and 32 is a receiver. A mold, 33 is a third movable mold, and 34 is a third hydraulic cylinder. (Description will be omitted below) Furthermore, the height dimension measuring device IO and the packed height measuring device 17 convert a change in the amount of movement of a linear piston rod, etc. into rotation of the roller 35.
The rotation amount is detected by the rotary encoder 36, and these data are stored in the computer 5 and each process is executed.

「発明の効果」以上説明したように本発明によれば、放射線量と詰め込
み高さとの両方が重積可能なもののみを一時保管するよ
うになし、新しく圧縮減容処理したものについて、その
放射線量と高さとを計測して、これらの組み合わせ適性
を順次行なうようにしているから、放射線量レベルを保
管基準の範囲内に抑制することを容易になｊ、得るとと
もに、操り返し詰め合せを実施オることにより、収容容
器の空きスペースの有効活用を図り、保管放射性廃棄物
の容積及び数組の減少を達成することかで４きる等の効
果を奏するものである。``Effects of the Invention'' As explained above, according to the present invention, only items that can be piled up in both radiation dose and packing height are temporarily stored, and items that have been newly compressed and reduced in volume are Since the amount and height are measured and the suitability of these combinations is performed sequentially, it is easy to control the radiation dose level within the range of storage standards, and it is also possible to carry out repeated assortments. By doing so, it is possible to make effective use of the empty space in the storage container, and achieve the effect of reducing the volume of stored radioactive waste and reducing the volume of radioactive waste.

[Brief explanation of drawings]

図面は本発明の一実施例を示旬もので、第１図は処理工
程例のフローチャート、第２図は放射性廃棄物の処理装
置の）ド面図、第３図は各工程の実施に使用される手段
の関係図、第４図は圧縮減容処理工程に使用される圧縮
機例の斜視図である１゜■・・・・・容器供給エリア、
２・・・・・・放射性廃棄物入り容器、３・・・・・・
搬送手段、４・・・・線量測定器、５・・・・・・コン
ピュータ、６・・・・・・容器保管エリア、７・・・・
圧縮減容装置、９・・・・・連結機、ＩＯ・・・−・・
高さよす定器、１１・・・・・・連結機、１２・・・・
・・搬送手段、１３・・・・・空容器貯留部、１４・・
・・・・空容器、１５・・・・・キ）・ラビングマシン
、１６　・・・・一時保管エリア、１７・・・・・・詰
め込み高さ測定器、１８・・・・・線−噴測定器、１９
・・・・・・コントローラ、２０・・・・・・γセンサ
、３５・・・・・ローラ、３６・・・・・・ロータリー
エンコーダ。The drawings show one embodiment of the present invention; Fig. 1 is a flowchart of an example of a treatment process, Fig. 2 is a side view of a radioactive waste processing equipment, and Fig. 3 is a diagram used to implement each process. Figure 4 is a perspective view of an example of a compressor used in the compression volume reduction process.
2... Container containing radioactive waste, 3...
Transport means, 4...Dose measuring device, 5...Computer, 6...Container storage area, 7...
Compression volume reduction device, 9...Connector, IO...---
Height gauge, 11... Coupling machine, 12...
...Transportation means, 13... Empty container storage section, 14...
... Empty container, 15 ..... Rubbing machine, 16 ... Temporary storage area, 17 ... Packing height measuring device, 18 ... Line-spray Measuring instrument, 19
... Controller, 20 ... γ sensor, 35 ... Roller, 36 ... Rotary encoder.

Claims

[Claims] (i) Measuring the radiation level of a container containing radioactive waste;
If the radiation level is less than the storage standard value, the material is compressed and reduced in volume, and the height of the compressed and volume-reduced material is measured and the height dimension is less than the storage standard value.
Calculate the sum of the radiation dose and height dimension with other compressed volume-reduced materials stored in the container, and when the sum is less than the storage standard value of the radiation level and height dimension, respectively. . A method for disposing of radioactive waste, characterized in that the compressed volume-reduced material is stored in the other container in a piled state. (ii) A radiation level measuring device for containers containing radioactive waste, a device for accepting and compressing and reducing the volume of containers whose data from the radiation level measuring device is less than the storage standard value, and compressing the containers processed by the compression and volume reducing processing device. It is characterized by a height measuring device for the volume-reduced product and a carrying-out means for assembling the compressed and volume-reduced product whose data on the height measuring device is less than the storage standard value with other compressed and volume-reduced products. radioactive waste processing equipment.