JPH0458596B2 - - Google Patents
Info
- Publication number
- JPH0458596B2 JPH0458596B2 JP59136365A JP13636584A JPH0458596B2 JP H0458596 B2 JPH0458596 B2 JP H0458596B2 JP 59136365 A JP59136365 A JP 59136365A JP 13636584 A JP13636584 A JP 13636584A JP H0458596 B2 JPH0458596 B2 JP H0458596B2
- Authority
- JP
- Japan
- Prior art keywords
- melting
- waste
- tank
- tank body
- partition wall
- 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
Links
- 238000002844 melting Methods 0.000 claims description 42
- 230000008018 melting Effects 0.000 claims description 42
- 239000002699 waste material Substances 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 12
- 239000010953 base metal Substances 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims 1
- 239000000155 melt Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000002901 radioactive waste Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000010849 combustible waste Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は廃棄物を連続溶融する溶融装置に関
し、さらに詳しくは放射性廃棄物の溶融に適した
連続溶融装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a melting device for continuously melting waste, and more particularly to a continuous melting device suitable for melting radioactive waste.
（従来の技術）
従来原子力発電所等の放射性物質取扱施設から
発生する放射能によつて汚染された廃棄物のう
ち、可燃性のものは一般に焼却処理され、そのま
まあるいはセメントで固化後ドラム缶に貯蔵され
ている。しかしこれらの方法では減容化率が劣り
安定性も問題があるため、出願人らは焼却灰を容
器内に入れて高周波誘導加熱により溶融後固化す
る溶融固化装置を、特願昭58−146185号により提
案している。(Prior technology) Conventionally, combustible wastes contaminated with radioactivity generated from facilities handling radioactive materials such as nuclear power plants are generally incinerated and stored in drums either as is or after solidifying with cement. has been done. However, these methods have poor volume reduction rates and stability problems, so the applicants have proposed a melting and solidifying device in which incinerated ash is placed in a container and melted and solidified using high-frequency induction heating, in patent application No. 58-146185. It is proposed by the issue.
（発明が解決しようとする問題点）
ところが上記溶融固化装置はバツチ式の装置で
あり、加熱溶融、冷却固化を繰返すため、処理能
力が小さく、加熱冷却の繰返しによるエネルギ損
失も大きい。また廃棄物を溶融する容器としては
金属製のものを用いる方が熱効率がよいが、融点
の高い廃棄物に使用すると容器の酸化損耗が著し
く、特に融点が1350℃以上の廃棄物は金属製容器
では溶融処理できない。(Problems to be Solved by the Invention) However, the above-mentioned melting and solidifying apparatus is a batch type apparatus, and since heating and melting and cooling and solidification are repeated, the processing capacity is small and energy loss due to repeated heating and cooling is also large. Additionally, it is better to use a metal container for melting waste, as it has better thermal efficiency, but when used for waste with a high melting point, the container suffers significant oxidation wear and tear. cannot be melted.
この発明は上記従来の問題点を解決するもの
で、廃棄物を連続的に処理できるため処理能力が
大きく、エネルギ損失が少ないうえ、融点が高い
廃棄物の溶融処理ができる廃棄物の連続溶融装置
を提供しようとするものである。 This invention solves the above-mentioned conventional problems, and is a continuous waste melting device that can process waste continuously, has a large processing capacity, reduces energy loss, and can melt waste with a high melting point. This is what we are trying to provide.
（問題点を解決するための手段）
この発明の連続溶融装置は、上部に廃棄物投入
口をそなえた槽体に該槽体の底面より上方におい
て開口する溢流口を設け、下端部が上方溢流口よ
りも下方に達する隔壁により上方槽体内を溶融室
と排出室に区画して成る溶融槽を、誘導加熱装置
内に設置し、上記誘導加熱装置により加熱されて
上記隔壁の下端部より下方に上面を有する溶融金
属層を形成するベースメタルを上記槽体内に充填
したことを特徴とする廃棄物の連続溶融装置であ
る。(Means for Solving the Problems) The continuous melting device of the present invention is provided with an overflow port that opens above the bottom surface of the tank body, which is provided with a waste input port at the top, and a bottom end of the tank body that opens above the bottom surface of the tank body. A melting tank, in which the upper tank body is divided into a melting chamber and a discharge chamber by a partition wall reaching below the overflow port, is installed in an induction heating device, and is heated by the induction heating device and melts from the lower end of the partition wall. This continuous waste melting apparatus is characterized in that the tank body is filled with a base metal forming a molten metal layer having an upper surface on the lower side.
（作用）
この発明の連続溶融装置においては、ベースメ
タルは溶融槽の槽体内において誘導加熱装置によ
り加熱されて溶融し、得られた溶融金属層によつ
て廃棄物が加熱されて溶融し、溢流口から外部へ
排出される。隔壁は溶融室内の未溶融廃棄物が排
出室に流入し溢流口の達するのを防止し、また溶
融した廃棄物は溶融金属層を被覆してベースメタ
ルの酸化消耗を防止する。(Function) In the continuous melting device of the present invention, the base metal is heated and melted by the induction heating device in the tank body of the melting tank, and the waste is heated and melted by the obtained molten metal layer, causing overflow. It is discharged to the outside from the outlet. The partition wall prevents the unmelted waste in the melting chamber from flowing into the discharge chamber and reaching the overflow port, and the molten waste coats the molten metal layer to prevent oxidative consumption of the base metal.
（実施例）
以下第１図および第２図によりこの発明の一実
施例を説明する。(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2.
第１図に示すように、基盤上に立設した支枠１
に円筒容器状の炉体２が支持され、この炉体２内
に溶融槽３が設置してある。炉体２の底部４には
排出口５が設けてあり、炉蓋６には筒状の廃棄物
装入口７が取付けてある。また炉蓋６に設けた排
気口８には図示しない集塵機を経て排風機が接続
されている。炉体２の側壁９は石英質などの非金
属材料から成り、側壁９の外周部下方には誘導加
熱コイル１０が設けてある。１１は溶融槽３の頂
部を被覆する断熱材製の蓋で、溶融槽３内に連通
する排ガス管１２が設けてある。溶融槽３の構造
は第１図および第２図に示す通りで、アルミナ
質、ジルコニア質、クロク質などの耐火材から成
る槽体１３の上部に、前記廃棄物装入口７に対向
する廃棄物装入口７を設け、底部１５に湾曲板状
のせき板１６を立設して底面１７より上方におい
て開口する溢流口１８をせき板１６の上縁部に形
成させるとともに、せき板１６の外方に排気口１
９を形成させてある。また槽体１３にはせき板１
６の上部を包囲する湾曲板状の隔壁２０を取付け
てある。この隔壁２０の下端部は溢流口１８より
下方に達し、この隔壁２０により槽体１３内は溶
融室２１と、該溶融室に下方で連通する排出室２
２とに区画されている。さらに槽体１３には、溶
融時の上面が隔壁２０の下端部より下方に位置す
る溶融金属層２３を形成するベースメタル２４が
充填してある。このベースメタル２４としては、
鋳鉄、鋼などの鉄系金属を用いると、融点が高い
ため高温度において酸化消耗が少なく好ましい。 As shown in Figure 1, the supporting frame 1 is erected on the foundation.
A cylindrical container-shaped furnace body 2 is supported within the furnace body 2, and a melting tank 3 is installed inside the furnace body 2. A discharge port 5 is provided at the bottom 4 of the furnace body 2, and a cylindrical waste inlet 7 is attached to the furnace lid 6. Further, an exhaust fan is connected to an exhaust port 8 provided in the furnace lid 6 via a dust collector (not shown). A side wall 9 of the furnace body 2 is made of a non-metallic material such as quartz, and an induction heating coil 10 is provided below the outer periphery of the side wall 9. Reference numeral 11 denotes a lid made of a heat insulating material that covers the top of the melting tank 3, and an exhaust gas pipe 12 communicating with the inside of the melting tank 3 is provided. The structure of the melting tank 3 is as shown in FIGS. 1 and 2, and the waste is placed in the upper part of the tank body 13 made of a refractory material such as alumina, zirconia, or chlorine, and facing the waste charging port 7. A charging port 7 is provided, a curved weir plate 16 is erected on the bottom 15, and an overflow port 18 that opens above the bottom face 17 is formed at the upper edge of the weir plate 16. Exhaust port 1 on the side
9 is formed. In addition, a weir plate 1 is attached to the tank body 13.
A curved plate-shaped partition wall 20 is attached to surround the upper part of 6. The lower end of this partition wall 20 reaches below the overflow port 18, and through this partition wall 20, the inside of the tank body 13 is connected to a melting chamber 21 and a discharge chamber 2 that communicates with the melting chamber below.
It is divided into 2. Further, the tank body 13 is filled with a base metal 24 forming a molten metal layer 23 whose upper surface during melting is located below the lower end of the partition wall 20 . As this base metal 24,
It is preferable to use iron-based metals such as cast iron and steel because they have a high melting point and are less likely to be consumed by oxidation at high temperatures.
上記構成の連続溶融装置２５を運転するには、
誘導加熱コイル１０の高周波電流を通電してベー
スメタル２４を誘導加熱して、溶融金属層２５を
形成させる。廃棄物装入口７、廃棄物投入口１４
を経て槽体１３内にアスベスト系の保温材、珪酸
カルシウム系の保温材、クラツドなどの高融点の
廃棄物２６を投入すれば、溶融室２１において高
温の溶融金属層２３により加熱され溶融して溶融
物２７となる。この溶融物２７は隔壁２０の下端
部と溶融金属層２３の間を通つて排出室２２内に
流出し、槽体１３内の溶融物２７が所定量に達す
ると溢流口１８を溢流して排出口１９を経て下方
へ連続的に流出し、下方の設けた冷却固化用の容
器あるいはペレタイザ等（いずれも図示しない）
内に供給され、固化処理される。上記工程におい
て溶融室２１内の溶融物２７上には未溶融の廃棄
物２６は浮遊堆積するが、隔壁２０によつて排出
室２２側へ未溶融のまま移動することが阻止され
るので、溢流口１８や排出口１９等の溶融物排出
路が未溶融物によつて詰つたり、未溶融物がその
まま排出されたりする事故が防止され、確実な溶
融処理がおこなわれる。また廃棄物２６中に溶融
困難な金属片等の固形物が混入している場合は、
この固形物は溶融金属層２３内または溶融物２７
の底部の溜り、上方にある溢流口１８の目詰りを
ひきおこすことがない。なお槽体１３の底部１５
にフリーズドバルブをそなえた排出口を設ける
と、上記固形物および溶融状態のベースメタル２
４を外部へ取出すのに便利である、また上記工程
においては溶融金属層２３は廃棄物の溶融物２７
により被覆されているため酸化消耗量は少なくて
すむ。また排気口８より炉体内のガスが吸引され
るので、炉体２内および溶融槽３内は負圧に維持
され、放射能汚染物質の飛散が防止される。 To operate the continuous melting device 25 having the above configuration,
A high frequency current is applied to the induction heating coil 10 to inductively heat the base metal 24 to form a molten metal layer 25 . Waste inlet 7, waste inlet 14
If high-melting-point waste 26 such as asbestos-based heat insulating material, calcium silicate-based heat insulating material, and cladding is put into the tank body 13 through the process, it will be heated and melted by the high-temperature molten metal layer 23 in the melting chamber 21. This becomes a melt 27. This melt 27 passes between the lower end of the partition wall 20 and the molten metal layer 23 and flows into the discharge chamber 22, and when the melt 27 in the tank body 13 reaches a predetermined amount, it overflows the overflow port 18. Continuously flows downward through the discharge port 19, and a container for cooling and solidification provided below, a pelletizer, etc. (none of these are shown)
It is supplied inside and solidified. In the above process, the unmelted waste 26 floats and accumulates on the melt 27 in the melting chamber 21, but the partition wall 20 prevents it from moving unmelted to the discharge chamber 22, so that it overflows. Accidents in which the melt discharge passages such as the flow port 18 and the discharge port 19 are clogged with unmelted materials or unmelted materials are discharged as they are are prevented, and reliable melting processing is performed. In addition, if solid materials such as metal pieces that are difficult to melt are mixed in the waste 26,
This solid substance is in the molten metal layer 23 or in the molten metal layer 27.
The reservoir at the bottom of the tank and the overflow port 18 located above will not be clogged. Note that the bottom 15 of the tank body 13
If a discharge port is provided with a frozen valve, the solid material and the molten base metal 2
In the above process, the molten metal layer 23 is a waste melt 27.
Because it is coated with Further, since the gas inside the furnace body is sucked through the exhaust port 8, the inside of the furnace body 2 and the melting tank 3 are maintained at a negative pressure, and scattering of radioactive contaminants is prevented.
この発明は上記実施例に限定されるものではな
く、たとえばせき板１６のかわりに上端部に溢流
口を有するオーバーフローノズルを槽体１３中に
設けてもよい。また槽体１３を炉体２内に設置せ
ずに、槽体１３自体を気密構造にし、該槽体１３
の側壁部外周に誘導加熱コイル１０を設けてもよ
い。またこの発明は放射性廃棄物以外の各種廃棄
物の溶融装置にも適用できる。 The present invention is not limited to the above-described embodiment; for example, instead of the weir plate 16, an overflow nozzle having an overflow port at the upper end may be provided in the tank body 13. Alternatively, instead of installing the tank body 13 inside the furnace body 2, the tank body 13 itself is made into an airtight structure, and the tank body 13 is
The induction heating coil 10 may be provided on the outer periphery of the side wall. The present invention can also be applied to devices for melting various types of waste other than radioactive waste.
（発明の効果）
以上説明したようにこの発明によれば、廃棄物
を連続的に溶融することができるので処理能力が
大きいうえにエネルギ損失が少なく、また未溶融
物が溶融物排出路を閉塞させることがなく、融点
が高い廃棄物を確実に連続溶融処理することがで
きる。(Effects of the Invention) As explained above, according to the present invention, waste can be melted continuously, so the processing capacity is large and energy loss is small, and unmelted materials block the melt discharge path. Waste materials with a high melting point can be reliably and continuously melted without being melted.
第１図はこの発明の一実施例を示す連続溶融装
置の縦断面図、第２図は第１図のＡ−Ａ線断面図
である。
２……炉体、３……溶融槽、１０……誘導加熱
コイル、１３……槽体、１４……廃棄物投入口、
１５……底部、１６……せき板、１７……底面、
１８……溢流口、１９……排出口、２０……隔
壁、２１……溶融室、２２……排出室、２３……
溶融金属層、２４……ベースメタル、２５……連
続溶融装置。
FIG. 1 is a longitudinal sectional view of a continuous melting apparatus showing an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line A--A in FIG. 2...furnace body, 3...melting tank, 10...induction heating coil, 13...tank body, 14...waste inlet,
15...bottom, 16...weir plate, 17...bottom,
18... Overflow port, 19... Discharge port, 20... Partition wall, 21... Melting chamber, 22... Discharge chamber, 23...
Molten metal layer, 24... Base metal, 25... Continuous melting device.
Claims (1)
の底面より上方において開口する溢流口を設け、
下端部が上記溢流口よりも下方に達する隔壁によ
り上記槽体内を溶融室と排出室に区画して成る溶
融槽を、誘導加熱装置内に設置し、上記誘導加熱
装置により加熱されて上記隔壁の下端部より下方
に上面を有する溶融金属層を形成するベースメタ
ルを上記槽体内に充填したことを特徴とする廃棄
物の連続溶融装置。 ２ ベースメタルが鋳鉄、鋼などの鉄系金属から
成る特許請求の範囲第１項記載の廃棄物の連続溶
融装置。[Scope of Claims] 1. A tank body having a waste input port at the top thereof is provided with an overflow port that opens above the bottom surface of the tank body,
A melting tank, which is formed by dividing the tank body into a melting chamber and a discharge chamber by a partition wall whose lower end reaches below the overflow port, is installed in an induction heating device, and is heated by the induction heating device to melt the melting tank into the partition wall. An apparatus for continuous melting of waste, characterized in that the tank is filled with a base metal forming a molten metal layer having an upper surface below the lower end of the tank. 2. The continuous waste melting apparatus according to claim 1, wherein the base metal is made of a ferrous metal such as cast iron or steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13636584A JPS6114599A (en) | 1984-06-30 | 1984-06-30 | Continuous melter for waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13636584A JPS6114599A (en) | 1984-06-30 | 1984-06-30 | Continuous melter for waste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6114599A JPS6114599A (en) | 1986-01-22 |
| JPH0458596B2 true JPH0458596B2 (en) | 1992-09-17 |
Family
ID=15173461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13636584A Granted JPS6114599A (en) | 1984-06-30 | 1984-06-30 | Continuous melter for waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6114599A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9041472B2 (en) | 2012-06-14 | 2015-05-26 | Skyworks Solutions, Inc. | Power amplifier modules including related systems, devices, and methods |
| US11984423B2 (en) | 2021-02-03 | 2024-05-14 | Skyworks Solutions, Inc. | Radio frequency transmission line with finish plating on conductive layer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103796A (en) * | 1978-02-03 | 1979-08-15 | Imamura Seisakusho Kk | Treatment of polluted metal and nonnmetal |
| JPS5697721A (en) * | 1979-12-29 | 1981-08-06 | Daido Steel Co Ltd | Melting treatment of industrial waste and others |
| JPS56146918A (en) * | 1980-04-15 | 1981-11-14 | Hitachi Plant Eng & Constr Co Ltd | Melting furnace for waste material |
| JPS57187697A (en) * | 1981-05-13 | 1982-11-18 | Daido Steel Co Ltd | Method of processing radioactive solid waste |
-
1984
- 1984-06-30 JP JP13636584A patent/JPS6114599A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54103796A (en) * | 1978-02-03 | 1979-08-15 | Imamura Seisakusho Kk | Treatment of polluted metal and nonnmetal |
| JPS5697721A (en) * | 1979-12-29 | 1981-08-06 | Daido Steel Co Ltd | Melting treatment of industrial waste and others |
| JPS56146918A (en) * | 1980-04-15 | 1981-11-14 | Hitachi Plant Eng & Constr Co Ltd | Melting furnace for waste material |
| JPS57187697A (en) * | 1981-05-13 | 1982-11-18 | Daido Steel Co Ltd | Method of processing radioactive solid waste |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9041472B2 (en) | 2012-06-14 | 2015-05-26 | Skyworks Solutions, Inc. | Power amplifier modules including related systems, devices, and methods |
| US11984423B2 (en) | 2021-02-03 | 2024-05-14 | Skyworks Solutions, Inc. | Radio frequency transmission line with finish plating on conductive layer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6114599A (en) | 1986-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |