JPS62238496A - Glass melting furnace - Google Patents
Glass melting furnaceInfo
- Publication number
- JPS62238496A JPS62238496A JP8185486A JP8185486A JPS62238496A JP S62238496 A JPS62238496 A JP S62238496A JP 8185486 A JP8185486 A JP 8185486A JP 8185486 A JP8185486 A JP 8185486A JP S62238496 A JPS62238496 A JP S62238496A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- filling amount
- melting furnace
- glass melting
- filling
- 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.)
- Granted
Links
- 239000011521 glass Substances 0.000 title claims description 16
- 238000002844 melting Methods 0.000 title claims description 13
- 230000008018 melting Effects 0.000 title claims description 13
- 238000001514 detection method Methods 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000002901 radioactive waste Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 8
- 230000005855 radiation Effects 0.000 description 7
- 230000005856 abnormality Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002927 high level radioactive waste Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012803 melt mixture Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
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」
本発明は放射性廃液とガラス素材とを溶融混合させて容
器に充填するガラス溶融炉に係り、特に、充填を強制的
に停止させることのできるガラス溶融炉に関する。Detailed Description of the Invention "Field of Industrial Application" The present invention relates to a glass melting furnace that melts and mixes radioactive waste liquid and glass material and fills the mixture into a container, and in particular, it is capable of forcibly stopping the filling. Regarding glass melting furnaces.
「従来の技術及びその問題点」
一般に、原子力発電施設等で発生する高レベル放射性廃
液は、ガラス溶融炉の中でガラス素材と溶融混合させ、
これら溶融混合物を他に用意した容器内に充填して固化
させるいわゆるガラス固化処理することが図られている
。"Prior art and its problems" Generally, high-level radioactive waste fluid generated at nuclear power generation facilities is melted and mixed with glass material in a glass melting furnace.
Attempts are being made to perform a so-called vitrification treatment in which the molten mixture is filled into a container prepared elsewhere and solidified.
この場合、溶融混合物は水あめ状に粘性を有しているた
め、その充填停止を確実に行なう信頼性の高い停止手段
が必要であるとともに、放射性物質を含有していること
により、放射線環境下への立ち入りを伴うことがないよ
うに配慮する必要があり、充填量の微妙な管理を行なっ
て、放射線源の散乱につながるオーバーフローが生じな
いようにする必要がある。In this case, since the molten mixture has a viscosity similar to that of starch syrup, a reliable stopping means is required to ensure that the filling is stopped, and since the molten mixture contains radioactive materials, it may be placed in a radiation environment. care must be taken to avoid access to the radiation source, and delicate control of the filling volume is required to avoid overflow that could lead to scattering of the radiation source.
「本発明の目的とその達成手段」
本発明は前記事情に鑑みて提案されたもので、溶融混合
物の充填を迅速かつ確実に停止させてオーバー７０−の
発生を防止することを目的としており、このような目的
を達成するため、容器内の充填１を検出する充填量検出
装置を設けるとともに、溶融混合物を流下させるための
ノズルの近傍に該ノズルの孔を閉塞可能なツヤツタを設
け、該ツヤツタの駆動機構に、充填量検出装置により所
定の充填量に達したことが検出されたときにノズルの孔
を閉塞させるための制御信号を出力する制御装置を連設
したことを特徴とする。``Objects of the present invention and means for achieving the same'' The present invention was proposed in view of the above circumstances, and its purpose is to quickly and reliably stop the filling of the molten mixture to prevent the occurrence of over 70-. In order to achieve such a purpose, a filling amount detection device for detecting the filling 1 in the container is provided, and a gloss that can close the hole of the nozzle is provided near the nozzle for causing the molten mixture to flow down. The drive mechanism is characterized in that a control device is connected to the drive mechanism for outputting a control signal for closing the nozzle hole when the filling amount detection device detects that a predetermined filling amount has been reached.
「作用」
このような構成としたことにより、シャッタによりノズ
ルの孔を閉塞して強制的に充填を停止させるとともに、
この充填停止を充填量検出装置の検出結果に基づき制御
装置により遠隔制御することが可能となるもゆである。"Operation" With this configuration, the shutter closes the nozzle hole and forcibly stops filling, and
It is also possible to remotely control this filling stop by the control device based on the detection result of the filling amount detection device.
「実施例」
以下、本発明のガラス溶融炉の一実施例を図面に基づい
て説明する。"Example" Hereinafter, one example of the glass melting furnace of the present invention will be described based on the drawings.
このガラス溶融炉は、放射線遮蔽のためセル！内に設置
されており、槽２の両側壁部および底壁部２ａに、放射
性廃液とガラス素材との溶融対象物に通電を行なう複数
の電極３が配設されるとともに、底壁部２ａの下面に高
周波コイル等の加熱装置４を備えるノズル５が設けられ
、その孔５ａｈ（ｔｌｌｆｆｌ内の空間に連通した構成
とされている。また、槽ｌの外底部にはノズル５の周囲
を間隔をおいて囲むように筒状のジャケット６が設けら
れるとともに、該ジャケット６の下端部に、ノズル５か
ら流下する溶融混合物Ｇを充填するための容ｉ５７の口
部と着脱可能に連結される結合装置８が設けられ、ジャ
ケット６内部には、ノズル５に向けて冷却空気を噴射す
るための冷却ヘッダ（図示路）が配設される。This glass melting furnace has cells for radiation shielding! A plurality of electrodes 3 are provided on both side walls and the bottom wall 2a of the tank 2 for energizing the object to be melted, which is radioactive waste liquid and glass material. A nozzle 5 equipped with a heating device 4 such as a high-frequency coil is provided on the lower surface, and the nozzle 5 is configured to communicate with the space inside the hole 5ah (tllffl). A cylindrical jacket 6 is provided to surround the cylindrical jacket 6, and a coupling device is detachably connected to the lower end of the jacket 6 with the mouth of a container 57 for filling the molten mixture G flowing down from the nozzle 5. 8, and a cooling header (shown in the figure) is provided inside the jacket 6 for injecting cooling air toward the nozzle 5.
そして、ノズル５の上端部付近に、その孔５ａを開閉可
能なシャッタ９がジャケット６の内壁部に支持された状
態に設けられている。該シャッタ９は、その駆動機構１
０に水平に配設されている回転軸１０ａに、垂直面内で
揺動させられるようにアーム１１が固定され、該アーム
１１の先端に、第１図の破線で示すようにアーム１１を
水平状態としたときにノズル５下端部に当接して孔５ａ
を閉塞する蓋１２が設けられたものである。また、駆動
機構１０は、ロークリアクヂュエータ等により構成され
て、回転軸１０ａを駆動するための加圧エアを送り込む
エア供給配管１３と、その流路を開閉する弁１４とが備
えられている。A shutter 9, which can open and close the hole 5a of the nozzle 5, is provided near the upper end of the nozzle 5 and is supported by the inner wall of the jacket 6. The shutter 9 has a drive mechanism 1
An arm 11 is fixed to a rotating shaft 10a horizontally disposed at 0 so as to swing in a vertical plane, and the arm 11 is attached horizontally to the tip of the arm 11 as shown by the broken line in FIG. When it is in the state, it comes into contact with the lower end of the nozzle 5 and the hole 5a
A lid 12 is provided to close the lid. Further, the drive mechanism 10 is composed of a low reactor or the like, and includes an air supply pipe 13 that sends pressurized air to drive the rotating shaft 10a, and a valve 14 that opens and closes the flow path. There is.
一方、容器７が設置される位置の近傍には、容器７の外
周部に接触させられる複数の熱電対１５が上下方向に相
互間隔をおいて設けられている。これら熱電対１５は、
容器７内に溶融混合物Ｇが充填されることによる容器７
の壁の温度変化を測定する乙ので、第１図の上から２番
目と３番目との熱電対１５の間に充填量の基準範囲を設
定しており、最上位の熱電対１５は、基準範囲を超えて
も充填が停止されない場合の異常検出用である。そして
、これら熱電対１５に、その測定データに基づきどの熱
雷対１５の位置に液面があるかを判定する判定回路１６
が連設され、これら熱電対１５および判定回路１６によ
り充填量検出装置１７が構成されている。On the other hand, near the position where the container 7 is installed, a plurality of thermocouples 15 that are brought into contact with the outer circumference of the container 7 are provided at intervals in the vertical direction. These thermocouples 15 are
Container 7 by filling the molten mixture G into the container 7
Since we are measuring temperature changes on the wall, we have set the reference range for the filling amount between the second and third thermocouples 15 from the top in Figure 1, and the top thermocouple 15 is within the reference range. This is for detecting an abnormality when filling is not stopped even if the range is exceeded. A determination circuit 16 determines at which thermocouple 15 the liquid level is located based on the measurement data of these thermocouples 15.
These thermocouples 15 and determination circuit 16 constitute a filling amount detection device 17.
また、セル１の外側には、充填量検出装置１７の検出結
果により液位を表示するとともに充填停止の制御を行な
う制御装置１８が設けられている。該制御装置１８は、
充填量検出装置１７により充填量が前記基準範囲内に達
したことが検出されたときには、前記加熱装置４の電源
を切りかつ冷却ヘッダに冷却空気を送り込む如く制御信
号を出力し、また最上位の熱電対１５の位置まで達した
ことが検出されたときには、異常の制御信号を出力して
、警報を発するとともに前記エア供給配管１３の弁１４
を開方向に駆動する如く制御するようになっているもの
である。Furthermore, a control device 18 is provided outside the cell 1 to display the liquid level based on the detection result of the filling amount detection device 17 and to control the stoppage of filling. The control device 18 includes:
When the filling amount detection device 17 detects that the filling amount has reached the reference range, it outputs a control signal to turn off the heating device 4 and send cooling air to the cooling header, and also outputs a control signal to send cooling air to the cooling header. When it is detected that the thermocouple has reached the position of the thermocouple 15, an abnormality control signal is output to issue an alarm and the valve 14 of the air supply pipe 13 is closed.
It is designed to be controlled so as to drive it in the opening direction.
このように構成したガラス溶融炉において、通常の充填
制御の場合は、充填量が基準範囲内に達したときに、制
御装置１８の制御により加熱装置４のＴｉ源を切るとと
もに冷却ヘッダから冷却空気を送り込み、溶融混合物Ｇ
をノズル５の孔５ａ内で冷却固化させるフリーズバルブ
方式によって流下を停止させる。また、故障発生等によ
り溶融混合物Ｇの流下が停まらず、基準範囲を超えて最
上位の熱電対［５の位置まで液面が達したことを検出し
たときには、制御装置１８が異常の制御信号を発して弁
１４を開方向に駆動し、エア供給配管１３から加圧エア
をシャッタ９の駆動機構ｌＯに送り込んでアーム１１を
第１図の矢印で示すように回転させ、破線で示すように
ノズル５の孔５ａをｆＥ１２で閉塞させることにより、
強制的に流下を阻止するものである。In the glass melting furnace configured as described above, in the case of normal filling control, when the filling amount reaches the standard range, the Ti source of the heating device 4 is turned off under the control of the control device 18, and cooling air is supplied from the cooling header. The molten mixture G
The flow is stopped by a freeze valve method in which the liquid is cooled and solidified within the hole 5a of the nozzle 5. In addition, if the flow of the molten mixture G does not stop due to a malfunction or the like and it is detected that the liquid level has exceeded the standard range and reached the position of the highest thermocouple [5], the control device 18 will control the abnormality. A signal is issued to drive the valve 14 in the opening direction, and pressurized air is sent from the air supply pipe 13 to the drive mechanism lO of the shutter 9 to rotate the arm 11 as shown by the arrow in FIG. 1, and as shown by the broken line. By blocking the hole 5a of the nozzle 5 with fE12,
This forcefully prevents water from flowing down.
すなわち、このガラス溶融炉は、フリーズバルブ方式に
よる通常時の充填停止と、シャッタ９による異常時の強
制停止との二重の停止手段を備えて、高い信頼性を有す
るとともに、これらの停止時期を放射線から遮蔽された
セルｌ外で制御装置１８により確認しながら遠隔制御す
ることができるものである。なお、シャッタ９の駆動機
構ＩＯを加圧エアにより作動するロータリアクチュエー
タ等により構成したから、放射線環境下における故障の
発生を少なくし得て、保守を容易にすることができる。In other words, this glass melting furnace is equipped with a dual stop means: a freeze valve system to stop charging during normal times, and a shutter 9 to force a stop in the event of an abnormality, and is highly reliable. It can be remotely controlled while being checked by the control device 18 outside the cell l, which is shielded from radiation. Note that since the drive mechanism IO of the shutter 9 is configured with a rotary actuator or the like operated by pressurized air, the occurrence of failures in a radiation environment can be reduced and maintenance can be facilitated.
「発明の効果」
以上説明したように、本発明のガラス溶融炉によれば、
ノズルの孔をシャッタにより閉塞して流下を強制停止さ
せるようにしているから、溶融混合物の粘性等に影響さ
れずに迅速かつ確実に流下を停止させて、オーバーフロ
ー等の発生を防止することができ、また、この充填停止
を充填量検出装置の検出結果に基づき制御装置により遠
隔制御することが可能で、放射線環境下における溶融作
業を効率よく行なうことができるという効果を奏する。"Effects of the Invention" As explained above, according to the glass melting furnace of the present invention,
Since the nozzle hole is closed with a shutter to forcibly stop the flow, the flow can be stopped quickly and reliably without being affected by the viscosity of the molten mixture, and overflows can be prevented. In addition, this filling stop can be remotely controlled by the control device based on the detection result of the filling amount detection device, which has the effect that melting work can be efficiently performed in a radiation environment.
第１図は本発明のガラス溶融炉の一実施例を示す一部を
省略した正断面図、第２図は第１図の■−■線に沿う矢
視断面図である。
１・・・・・・セル、２・・・・・・槽、３・・・・・
・電極、４・・・・・・加熱装置、５・・・・・・ノズ
ル、５ａ・・・・・・孔、６・・・・・・ジャケット、
７・・・・・・容器、８・・・・・・結合装置、９・・
・・・・シャッタ、１０・・・・・・駆動機構、ｌＯａ
・・・・・・回転軸、１１・・・・・・アーム、１２・
・・・・・蓋、１３・・・・・・エア供給配管、１４・
・・・・・弁、１５・・・・・・熱電対、１６・・・・
・・判定回路、１７・・・・・・充填量検出装置、１８
・・・・・・制御装置、Ｇ・・・・・・溶融混合物。FIG. 1 is a partially omitted front cross-sectional view showing an embodiment of the glass melting furnace of the present invention, and FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1. 1... Cell, 2... Tank, 3...
・Electrode, 4... Heating device, 5... Nozzle, 5a... Hole, 6... Jacket,
7...Container, 8...Coupling device, 9...
...Shutter, 10... Drive mechanism, lOa
... Rotation axis, 11 ... Arm, 12.
...Lid, 13...Air supply piping, 14.
...Valve, 15...Thermocouple, 16...
... Judgment circuit, 17 ... Filling amount detection device, 18
...control device, G ...melt mixture.
Claims (1)
物をノズルから流下させて容器に充填するガラス溶融炉
において、容器内の充填量を検出する充填量検出装置を
設けるとともに、前記ノズルの近傍に該ノズルの孔を閉
塞可能なシャッタを設け、該シャッタの駆動機構に、前
記充填量検出装置により所定の充填量に達したことが検
出されたときにノズルの孔を閉塞させるための制御信号
を出力する制御装置を連設したことを特徴とするガラス
溶融炉。In a glass melting furnace in which a radioactive waste liquid and a glass material are melted and mixed and the molten mixture flows down from a nozzle to fill a container, a filling amount detection device for detecting the filling amount in the container is provided, and a filling amount detection device is provided near the nozzle. A shutter capable of closing the hole of the nozzle is provided, and a control signal is sent to the drive mechanism of the shutter for closing the hole of the nozzle when the filling amount detection device detects that a predetermined filling amount has been reached. A glass melting furnace characterized by being equipped with a control device for outputting output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61081854A JPH0762719B2 (en) | 1986-04-09 | 1986-04-09 | Glass melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61081854A JPH0762719B2 (en) | 1986-04-09 | 1986-04-09 | Glass melting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62238496A true JPS62238496A (en) | 1987-10-19 |
| JPH0762719B2 JPH0762719B2 (en) | 1995-07-05 |
Family
ID=13758072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61081854A Expired - Fee Related JPH0762719B2 (en) | 1986-04-09 | 1986-04-09 | Glass melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0762719B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5142900A (en) * | 1974-10-11 | 1976-04-12 | Hitachi Ltd | HOSHASEIBUTSUSHITSUNO JUTENSHORISOCHI |
| JPS5788037A (en) * | 1980-11-14 | 1982-06-01 | Toshiba Corp | Discharging apparatus for molten glass from glass melting furnace |
-
1986
- 1986-04-09 JP JP61081854A patent/JPH0762719B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5142900A (en) * | 1974-10-11 | 1976-04-12 | Hitachi Ltd | HOSHASEIBUTSUSHITSUNO JUTENSHORISOCHI |
| JPS5788037A (en) * | 1980-11-14 | 1982-06-01 | Toshiba Corp | Discharging apparatus for molten glass from glass melting furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0762719B2 (en) | 1995-07-05 |
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