JPS61246513A - Melt vessel and melt treating method for miscellaneous wastes using it - Google Patents
Melt vessel and melt treating method for miscellaneous wastes using itInfo
- Publication number
- JPS61246513A JPS61246513A JP60086246A JP8624685A JPS61246513A JP S61246513 A JPS61246513 A JP S61246513A JP 60086246 A JP60086246 A JP 60086246A JP 8624685 A JP8624685 A JP 8624685A JP S61246513 A JPS61246513 A JP S61246513A
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- JP
- Japan
- Prior art keywords
- silicon carbide
- graphite
- melting
- silicon
- impregnated
- 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.)
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- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、焼却灰、不燃性雑固体廃棄物等の有機物をは
とｌυど含まない雑廃棄物、特に放射性廃棄物を溶融処
理する溶融容器およびそれを用いた雑廃棄物の溶融処理
方法に関し、詳しくは炭化珪素と、金属珪素および／ま
たは黒鉛から構成される溶融容器を用いたことによりそ
の耐酸化性を向上し長期間にわたる連続処理を可能とし
た溶融容器およびこれを用いた雑廃棄物の溶融処理方法
に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a melting method for melting and processing miscellaneous wastes that do not contain any organic matter such as incinerated ash and non-combustible miscellaneous solid wastes, especially radioactive wastes. Regarding the container and the method for melting miscellaneous waste using it, in detail, by using a melting container made of silicon carbide, metal silicon and/or graphite, its oxidation resistance is improved and continuous processing over a long period of time is possible. The present invention relates to a melting container that enables this and a method for melting miscellaneous waste using the same.
［従来の技術］
従来、雑廃棄物を溶融処理する方法として、種々の方法
が提案されており、例えばマイクロ波焼却溶融装置、高
周波誘導加熱溶融炉等を用いた溶融処理方法が知られて
いる。[Prior Art] Conventionally, various methods have been proposed for melting miscellaneous waste. For example, melting methods using microwave incineration melting equipment, high frequency induction heating melting furnaces, etc. are known. .
［発明が解決しようとする問題点］
しかしながら、主として焼却灰を処理対象としたマイク
ロ波溶融装置を用いる方法では、溶融詩に可燃性ガスや
金属の混入により放電を起こすことがあり運転制御が難
しく、また処理容量が小さいという欠点がある。高周波
誘導加熱溶融炉を用いる方法は、例えば特開昭６０−３
８７００号公報および特開昭６０−３８６９８号公報に
開示されている。しかし、この方法では発熱体にスレン
レス鋼を用いているため１１００℃以上の温度を長時間
得ることは難しく、また多聞の融点降下剤を必要とする
ため減容性が低下するという欠点がある。[Problems to be Solved by the Invention] However, in a method using a microwave melting device that is mainly used to treat incinerated ash, discharge may occur due to the mixing of flammable gas or metal in the melted ash, making operation control difficult. , it also has the disadvantage of small processing capacity. A method using a high frequency induction heating melting furnace is, for example, JP-A-60-3
It is disclosed in Japanese Patent Application Laid-open No. 8700 and Japanese Patent Application Laid-Open No. 60-38698. However, since this method uses stainless steel for the heating element, it is difficult to maintain a temperature of 1100° C. or higher for a long period of time, and it also requires a large amount of melting point depressant, which has the disadvantage of reducing volume reduction performance.
また、本発明者等による特開昭５９−２３０９９９号公
報には溶融容器に発熱体となる黒鉛を使用した高周波誘
導加熱溶融方法が開示されている。しかし、この方法で
は溶融容器として黒鉛を用いているため１６００℃付近
の高温を得ることができるものの、外壁面は空気の、内
壁面は溶融物の、酸化特に溶融物上端と溶融容器との接
触部における損傷が大ぎく長時間の連続使用に耐えない
。具体的にはこの黒鉛を用いたものは、実用運転可能時
間が３〜１０時間程度であり、現在では５０〜１００時
間程度の連続処理を可能とするものが望まれている。ま
た内壁面のセラミックコーティングのような通常の黒鉛
消耗対策では、スラグ質と接触することにより剥離して
しまいその効果がなくなってしまう。Further, Japanese Patent Application Laid-Open No. 59-230999 by the present inventors discloses a high-frequency induction heating melting method using graphite as a heating element in a melting container. However, since this method uses graphite as the melting container, it is possible to obtain a high temperature of around 1600℃, but the outer wall surface is exposed to air and the inner wall surface is exposed to oxidation of the melt, especially contact between the top of the melt and the melting container. The parts are damaged so much that they cannot withstand continuous use for long periods of time. Specifically, the practical operation time of a device using graphite is about 3 to 10 hours, and it is currently desired to have a device that can perform continuous processing for about 50 to 100 hours. In addition, ordinary graphite consumption countermeasures such as ceramic coating on the inner wall surface will peel off when it comes into contact with the slag, making it ineffective.
本発明は上述の問題点を解決するためになされたもので
、耐酸化性を向上し長時間の連続処理を可能とする溶融
容器およびこれを用いた雑廃棄物の溶融処理方法を提供
することを目的とする。The present invention has been made in order to solve the above-mentioned problems, and provides a melting container that improves oxidation resistance and enables continuous processing over a long period of time, and a method for melting and processing miscellaneous waste using the same. With the goal.
「問題点を解決する手段および作用」
本発明は上記目的を達成するために、第１発明は、雑廃
棄物を高周波誘導加熱コイルを用いて溶融処理するため
に、雑廃棄物が投入される溜部と、溶融された雑廃棄物
を取出す取出孔を下部または底部に設けた中空状の溶融
容器であって、炭化珪素と、金属珪素および／または黒
鉛から構成されることを特徴とし、
第２発明は、雑廃棄物を高周波誘導加熱コイルを用いて
溶融処理するために、雑廃棄物が投入される溜部と、溶
融された雑廃棄物を取出す取出孔を下部またｔ、を底部
に設けた中空状の溶融容器で雑廃棄物を溶融し、該取出
孔に嵌合するストッパーを用いて該取出孔を適宜閉塞、
開口して溶融物を抜き落して連続処理または断続処理す
る雑廃棄物の溶融処理方法において、前記溶融容器が、
炭化珪素と、金属珪素および／または黒鉛から構成され
ることを特徴とする。"Means and effects for solving the problems" In order to achieve the above object, the first invention provides a method for melting miscellaneous waste using a high-frequency induction heating coil. A hollow melting container having a reservoir and a take-out hole for taking out melted miscellaneous waste at the lower part or bottom, characterized by being composed of silicon carbide, metallic silicon and/or graphite, 2. In order to melt and process miscellaneous waste using a high-frequency induction heating coil, the invention includes a reservoir into which the miscellaneous waste is thrown and a take-out hole for taking out the melted miscellaneous waste at the bottom. The miscellaneous waste is melted in the provided hollow melting container, and the extraction hole is appropriately closed using a stopper that fits into the extraction hole.
In a method for melting miscellaneous waste in which the melting container is opened and the melt is drawn out for continuous or intermittent treatment, the melting container comprises:
It is characterized by being composed of silicon carbide, metallic silicon, and/or graphite.
以下、第１〜４図に基づいて本発明の溶融容器について
説明する。Hereinafter, the melting container of the present invention will be explained based on FIGS. 1 to 4.
第１図は本発明に係る溶融容器の側断面図、第２図はそ
の平面図である。同図において、溶融容器１は中空円筒
状であり、その内側には雑廃棄物が投入される溜部２が
形成されており、溜部の底部の中心には雑廃棄物の溶融
物を抜き落す取出孔３が設けられている。またこの取出
孔３は後述するストッパーに嵌合する形状となっている
。FIG. 1 is a sectional side view of a melting container according to the present invention, and FIG. 2 is a plan view thereof. In the figure, a melting container 1 has a hollow cylindrical shape, and a reservoir 2 into which miscellaneous waste is thrown is formed inside the melting container 1, and the melted miscellaneous waste is drawn out from the center of the bottom of the reservoir. A take-out hole 3 is provided for dropping. Further, this extraction hole 3 has a shape that fits into a stopper which will be described later.
本発明の溶融容器１は、炭化珪素を主材料としてこれに
金属珪素を含浸させるか、あるいは黒鉛を主材料として
炭化珪素および金属珪素を含浸させるか、またはそれぞ
れ純粋なものを組合わせて溶融容器１を構成する。The melting container 1 of the present invention is made of silicon carbide as a main material and impregnated with metal silicon, or graphite as a main material and impregnated with silicon carbide and metal silicon, or a combination of pure materials. 1.
溶融容器１として、金属珪素を炭化珪素に、または金属
珪素および炭化珪素を黒鉛に含浸させたものを用いる場
合は、これらを均一に含浸させても不均一に含浸させて
もよい。この場合炭化珪素自体は発熱体とならないため
、金属珪素含浸炭化珪素を用いる場合は金属珪素は１０
ｗｔ、％以上、金属珪素および炭化珪素を含浸させた
黒鉛を用いる場合は黒鉛を３０ Ｗｔ、％以上含有する
ことが好ましい。When using a material obtained by impregnating silicon carbide with metal silicon or graphite with silicon metal and silicon carbide as the melting container 1, these may be impregnated uniformly or non-uniformly. In this case, silicon carbide itself does not act as a heating element, so when using silicon carbide impregnated with metal silicon, the silicon carbide is 10
When graphite impregnated with metallic silicon and silicon carbide is used, it is preferable to contain graphite in an amount of 30 Wt.% or more.
このような溶融容器１は次の製造方法によって製造でき
る。すなわち、るつぼ形状に加工した炭化珪素焼結体ま
たは黒鉛を金属珪素粉末が充填されている容器内に、両
者が接触しないように設置し、アルゴンガス等の不活性
ガス中で熱処理して得られる。熱処理条件は製造する溶
融容器の大きさ、形状等によって異なるが、３１程度の
溶融容器を製造する場合は、１５００〜２０００℃で、
３〜５時間熱処理すればよい。このように処理すること
によって、金属珪素を含浸した溶融容器１が得られる。Such a melting container 1 can be manufactured by the following manufacturing method. That is, it is obtained by placing a silicon carbide sintered body or graphite processed into a crucible shape in a container filled with metal silicon powder so that they do not come into contact with each other, and heat-treating it in an inert gas such as argon gas. . Heat treatment conditions vary depending on the size, shape, etc. of the melting container to be manufactured, but when manufacturing a melting container of about 31, it is 1500 to 2000 ° C.
Heat treatment may be performed for 3 to 5 hours. By processing in this manner, a melting container 1 impregnated with metallic silicon is obtained.
また、本発明においては、金属珪素を炭化珪素または黒
鉛に含浸させなくともこれらの純粋なものを適当に組み
合わせることによって耐酸化性を向上させた溶融容器１
が得られる。すなわち、誘導加熱炉においては良好な発
熱体として黒鉛を用いるのが好ましいが、黒鉛は酸化損
傷し易いので酸化損傷し易い部分に耐酸化性の良好な炭
化珪素を用いるものである。例えば、第３図に示すよう
に溶融容器１の外壁を炭化珪素１ａによって構成し、溶
融物が接する内壁を黒鉛１ｂによって構成する。Moreover, in the present invention, the melting container 1 has improved oxidation resistance by appropriately combining silicon carbide or graphite with pure metal silicon, without impregnating it with silicon carbide or graphite.
is obtained. That is, in an induction heating furnace, it is preferable to use graphite as a good heating element, but since graphite is easily damaged by oxidation, silicon carbide, which has good oxidation resistance, is used in the parts that are easily damaged by oxidation. For example, as shown in FIG. 3, the outer wall of melting vessel 1 is made of silicon carbide 1a, and the inner wall with which the melt contacts is made of graphite 1b.
また第４図に示すように溶融容器の内部を炭化珪素１ａ
とし、外周面を黒鉛１ｂで覆うように溶融容器１を構成
してもよい。この場合も、前述したように溶融容器１の
３０ ｗｔ、％以上が黒鉛となるように構成するのが好
ましい。なお、本発明の応用例としては、第５図に示す
ように溶融容器１自体は耐酸化性の良好な炭化珪素に金
属珪素を含浸させたものを用い、ストッパー４も同じ材
質とするがその先端部を取出孔３とストッパー４との密
着性から発熱体となる黒鉛１ｂとしてもよい。In addition, as shown in Fig. 4, the inside of the melting container is covered with silicon carbide 1a.
The melting container 1 may be configured such that the outer peripheral surface is covered with graphite 1b. In this case as well, as described above, it is preferable to construct the melting vessel 1 so that 30 wt.% or more is graphite. In addition, as an application example of the present invention, as shown in FIG. 5, the melting container 1 itself is made of silicon carbide with good oxidation resistance impregnated with metal silicon, and the stopper 4 is also made of the same material. The tip portion may be made of graphite 1b, which serves as a heating element due to the close contact between the extraction hole 3 and the stopper 4.
次に、第６図に基づいて本発明の溶融処理方法について
述べる。Next, the melt processing method of the present invention will be described based on FIG.
第６図は、本発明の溶融処理方法を説明する図である。FIG. 6 is a diagram illustrating the melt processing method of the present invention.
同図において、焼却灰、不燃性雑固体廃棄物等の有機物
をほとんど含まない雑廃棄物５は、ホッパー６に一時的
に蓄えられ、雑廃棄物５は適宜に供給管７中を通って高
周波誘導加熱炉コイル８に囲まれた溶融容器１の溜部２
に投入される。溜部２には、その底部の中心に取出孔３
が設けられている。そして取出孔３にはストッパー昇降
機９等によって昇降するストッパー４の先端が嵌合され
、取出孔３を閉塞した状態としている。雑廃棄物５が溶
融容器１の溜部２に所望量満されると、溶融容器１は高
周波誘導加熱コイル８によって加熱され発熱体として機
能し、雑廃棄物５は溶融固化し溶融固化物１０となる。In the figure, miscellaneous waste 5 containing almost no organic matter, such as incinerated ash and non-combustible miscellaneous solid waste, is temporarily stored in a hopper 6, and the miscellaneous waste 5 is appropriately passed through a supply pipe 7 and subjected to high frequency Reservoir 2 of melting vessel 1 surrounded by induction heating furnace coil 8
will be put into the The reservoir 2 has an extraction hole 3 at the center of its bottom.
is provided. The tip of a stopper 4 that is raised and lowered by a stopper elevator 9 or the like is fitted into the take-out hole 3, thereby closing the take-out hole 3. When the desired amount of miscellaneous waste 5 is filled in the reservoir 2 of the melting container 1, the melting container 1 is heated by the high-frequency induction heating coil 8 and functions as a heating element, and the miscellaneous waste 5 is melted and solidified to form a molten solidified product 10. becomes.
雑廃棄物５が完全に溶融物になると適宜にストッパーが
時機９によってストッパー４が引ぎ上げられ、取出孔３
は開口し、溶融物が取出孔３から自重にてキャニスタ１
１内に落下して冷却固化する。溶融物が適当量キャニス
タ１１に落下すると、ストッパー昇降機９がストッパー
４を下降し、取出孔３にストッパー４先端が嵌合し、再
び取出孔３が閉塞され、供給管７より新たな雑廃棄物５
が溶融容器１の溜部２に満たされ、キャニスタ１１が溶
融固化物１０で一杯になるまで繰り返し溶融固化される
。また廃ガスは廃ガス管１２より取り出され、必要なら
焼却炉の廃ガス処理系で処理され放射能が除去される。When the miscellaneous waste 5 becomes completely molten, the stopper 4 is pulled up by the timer 9 and the extraction hole 3 is removed.
is opened, and the melt flows from the extraction hole 3 into the canister 1 under its own weight.
1 and cooled and solidified. When an appropriate amount of the melt falls into the canister 11, the stopper elevator 9 lowers the stopper 4, the tip of the stopper 4 fits into the take-out hole 3, the take-out hole 3 is closed again, and new miscellaneous waste is removed from the supply pipe 7. 5
The reservoir 2 of the melting container 1 is filled with the melted and solidified material 10, and the melted and solidified material 10 is repeatedly melted and solidified until the canister 11 is filled with the melted and solidified material 10. Further, the waste gas is taken out from the waste gas pipe 12 and, if necessary, is treated in the waste gas treatment system of the incinerator to remove radioactivity.
以下、実施例および比較例に基づいて本発明を説明・す
る。The present invention will be explained below based on Examples and Comparative Examples.
し実 施 例］
るつぼ形状に加工した炭化珪素焼結体を金属珪素粉末が
充填されている容器内に、アルゴン丼ｉガス雰囲気下で
、１８００℃で、４時間熱処理して、第１図に示す溶融
容器と略同−の形状の金属珪素を含浸した炭化珪素から
なる溶融容器（容量：約３、ｆ）を製造した。得られた
溶融容器の材質の組成は炭化珪素的ｇｏ ｗｔ、％、金
属珪素的２０ ｗｔ、％であった。[Example] A silicon carbide sintered body processed into a crucible shape was heat-treated at 1800°C for 4 hours in an argon bowl gas atmosphere in a container filled with metal silicon powder. A melting container (capacity: about 3 f) made of silicon carbide impregnated with metallic silicon and having approximately the same shape as the melting container shown was manufactured. The composition of the material of the obtained melting vessel was 20 wt% silicon carbide and 20 wt% silicon metal.
次いで、この溶融容器および第６図の溶融処理装置と略
同−の溶融処理装置を用いて、次の処理条件で溶融処理
を行なった。Next, using this melting container and a melting processing apparatus substantially the same as the melting processing apparatus shown in FIG. 6, melting processing was carried out under the following processing conditions.
得られた溶融容器に焼却灰と、粉体化したパーライト（
保温材）を１＝１（重量比率）で混合した模擬廃棄物を
２．５ｋｇ仕込み、１６００℃で連続的に模擬廃棄物を
溶融後、約２０ｋｇ／ ｈｒの処理速度で供給し、溶融
物を５０４のステンレス鋼製容器（キャニスタ）に投入
した。この操作を１日に約６時間で１０日間行ない、処
理固が１３００ｋ（］になった時点で高周波電源装置の
出力変化が起こったので溶融処理を終了した。この時、
高周波誘導加熱炉を解放して溶融容器を観察したところ
、溶融容器の内壁の一部がわずかに消耗し、そこから溶
融物かにじみ出た形跡が認められた。従って、本発明の
溶融容器では上記処理条件で有効処理時間は約６０時間
であった。In the resulting melting container, incineration ash and powdered perlite (
2.5 kg of simulated waste mixed with heat insulating material) at a ratio of 1=1 (weight ratio) was charged, the simulated waste was continuously melted at 1600°C, and then fed at a processing rate of approximately 20 kg/hr to allow the melt to flow. 504 stainless steel container (canister). This operation was carried out for about 6 hours a day for 10 days, and when the processed solidity reached 1300 k(), the output of the high frequency power supply device changed, so the melting process was terminated.At this time,
When the high-frequency induction heating furnace was opened and the melting vessel was observed, a portion of the inner wall of the melting vessel was slightly worn away, and evidence of molten material seeping out from there was observed. Therefore, in the melting vessel of the present invention, the effective processing time was about 60 hours under the above processing conditions.
［比較例］
実施例と同一の形状で黒鉛のみからなる溶融容器を用い
て実施例と同様の条件で処理したところ、処理間が１２
０ｋ（］になった時点で溶融容器が損傷により使用でき
なくなり、黒鉛の溶融容器では約６時間しか使用できな
いことが判った。[Comparative Example] When processing was performed under the same conditions as in the example using a melting container made only of graphite and having the same shape as in the example, the time between treatments was 12
It was found that when the temperature reached 0k(), the melting vessel became unusable due to damage, and a graphite melting vessel could only be used for about 6 hours.
［発明の効果］
以上説明したように本発明によれば、以下のごとき効果
を奏する。[Effects of the Invention] As explained above, according to the present invention, the following effects are achieved.
■ 溶融容器を炭化珪素と、金属珪素および／または黒
鉛から構成することにより、熱Ｖ＃撃性は黒鉛と同程度
に也好で、なおかつ耐酸化性が著しく向上する。(2) By constructing the melting container from silicon carbide, metallic silicon and/or graphite, the thermal V# impact resistance is as good as that of graphite, and the oxidation resistance is significantly improved.
■ 溶融容器の内部または外壁面を黒鉛から炭化珪素に
変更することにより、溶融容器の寿命が長くなり交換頻
度が減少する。これによりメンテナンスのための管理区
域内作業時間が短くなり、放射性廃棄物を処理する場合
は被爆を低減できる。■ By changing the internal or external wall surface of the melting container from graphite to silicon carbide, the life of the melting container will be extended and the frequency of replacement will be reduced. This reduces the amount of time required to work in controlled areas for maintenance, and reduces radiation exposure when processing radioactive waste.
■ ストッパーの材質を炭化珪素または金属珪素含浸炭
化珪素にすることにより、耐スラグ性、耐酸化性が向上
しメンテナンス回数が減少する。■ By using silicon carbide or metal silicon-impregnated silicon carbide as the material of the stopper, slag resistance and oxidation resistance are improved and maintenance frequency is reduced.
■ 高温とａる部位の交換頻度が減少することにより、
交換のための機器類使用回数が減少し装置寿命が長くな
る。■ By reducing the frequency of replacing parts that are exposed to high temperatures,
The number of times equipment is used for replacement is reduced and the life of the equipment is extended.
■ 連続運転可能時間が長くなり昇温、降温のための時
間が少なくなり効率的な処理が可能となる。■ Continuous operation is possible for a longer period of time, reducing the amount of time required to raise and lower the temperature, allowing for more efficient processing.
第１図は本発明に係る溶融容器の側面断面図、第２図は
その平面図、第３〜５図は本発明の溶融容器の変形例を
説明する図、第６図は本発明の溶融処理方法を説明する
図である。
１・・・溶融容器、２・・・溜部、３・・・取出孔、４
・・・ストッパー、５・・・雑廃棄物、６・・・ホッパ
ー、７・・・供給管、８・・・高周波誘導加熱コイル、
９・・・ストッパー昇降機、１０・・・溶融固化物、１
１・・・キャニスタ。
第１図
第２図
第４図
第５図
第６図Fig. 1 is a side sectional view of the melting container according to the present invention, Fig. 2 is a plan view thereof, Figs. It is a figure explaining a processing method. 1... Melting container, 2... Reservoir, 3... Taking out hole, 4
...stopper, 5...miscellaneous waste, 6...hopper, 7...supply pipe, 8...high frequency induction heating coil,
9...Stopper elevator, 10...Melted solidified product, 1
1... Canister. Figure 1 Figure 2 Figure 4 Figure 5 Figure 6
Claims (1)
するために、雑廃棄物が投入される溜部と、溶融された
雑廃棄物を取出す取出孔を下部または底部に設けた中空
状の溶融容器であつて、炭化珪素と、金属珪素および／
または黒鉛から構成されることを特徴とする溶融容器。 ２、前記金属珪素が、前記炭化珪素に均一または不均一
に含浸される前記特許請求の範囲第１項記載の溶融容器
。 ３、前記金属珪素が、前記炭化珪素および黒鉛に均一ま
たは不均一に含浸される前記特許請求の範囲第１項記載
の溶融容器。 ４、前記溶融容器が、内壁が黒鉛によつて、外壁が炭化
珪素によつて構成される前記特許請求の範囲第１項記載
の溶融容器。 ５、雑廃棄物を高周波誘導加熱コイルを用いて溶融処理
するために、雑廃棄物が投入される溜部と、溶融された
雑廃棄物を取出す取出孔を下部または底部に設けた中空
状の溶融容器で雑廃棄物を溶融し、該取出孔に嵌合する
ストッパーを用いて該取出孔を閉塞、開口して溶融物を
抜き落して連続処理する雑廃棄物の溶融処理方法におい
て、前記溶融容器が、炭化珪素と、金属珪素および／ま
たは黒鉛から構成されることを特徴とする雑廃棄物の溶
融処理方法。 ６、前記金属珪素が、前記炭化珪素に均一または不均一
に含浸される前記特許請求の範囲第５項記載の方法。 ７、前記金属珪素が、前記炭化珪素および黒鉛に均一ま
たは不均一に含浸される前記特許請求の範囲第５項記載
の方法。 ８、前記溶融容器が、内壁が黒鉛によつて、外壁が炭化
珪素によつて構成される前記特許請求の範囲第５項記載
の方法。 ９、前記ストッパーが、炭化珪素、金属珪素含浸炭化珪
素または金属珪素含浸黒鉛から構成される前記特許請求
の範囲第５〜８項のいずれかに記載の方法。[Claims] 1. In order to melt miscellaneous waste using a high-frequency induction heating coil, a reservoir into which the miscellaneous waste is introduced and a take-out hole for taking out the melted miscellaneous waste are provided in the lower part or bottom. a hollow melting vessel provided in the
or a melting vessel characterized in that it is composed of graphite. 2. The melting vessel according to claim 1, wherein the silicon carbide is uniformly or non-uniformly impregnated with the silicon carbide. 3. The melting vessel according to claim 1, wherein the silicon carbide and graphite are uniformly or non-uniformly impregnated with the metal silicon. 4. The melting container according to claim 1, wherein the melting container has an inner wall made of graphite and an outer wall made of silicon carbide. 5. In order to melt and process miscellaneous waste using a high-frequency induction heating coil, a hollow-shaped container is provided at the bottom or bottom with a reservoir into which the miscellaneous waste is input and a take-out hole for taking out the melted miscellaneous waste. A method for melting miscellaneous waste in which miscellaneous waste is melted in a melting container, and a stopper that fits into the ejection hole is used to close and open the ejection hole to draw out the melted material for continuous treatment. 1. A method for melting and treating miscellaneous waste, characterized in that the container is composed of silicon carbide, metal silicon and/or graphite. 6. The method according to claim 5, wherein the silicon carbide is uniformly or non-uniformly impregnated with the silicon carbide. 7. The method according to claim 5, wherein the silicon carbide and graphite are uniformly or non-uniformly impregnated with the metal silicon. 8. The method according to claim 5, wherein the melting container has an inner wall made of graphite and an outer wall made of silicon carbide. 9. The method according to any one of claims 5 to 8, wherein the stopper is composed of silicon carbide, silicon carbide impregnated with metal, or graphite impregnated with silicon metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60086246A JPH07104439B2 (en) | 1985-04-24 | 1985-04-24 | Melting vessel and method for melting miscellaneous waste using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60086246A JPH07104439B2 (en) | 1985-04-24 | 1985-04-24 | Melting vessel and method for melting miscellaneous waste using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61246513A true JPS61246513A (en) | 1986-11-01 |
| JPH07104439B2 JPH07104439B2 (en) | 1995-11-13 |
Family
ID=13881455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60086246A Expired - Fee Related JPH07104439B2 (en) | 1985-04-24 | 1985-04-24 | Melting vessel and method for melting miscellaneous waste using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07104439B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192099A (en) * | 2008-02-12 | 2009-08-27 | Japan Atomic Energy Agency | Radioactive waste treatment equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849665A (en) * | 1981-09-10 | 1983-03-23 | 京セラ株式会社 | Ceramic body for dielectric heating |
| JPS59199576A (en) * | 1983-04-27 | 1984-11-12 | 住友電気工業株式会社 | Manufacture of fine silicon carbide sintered body |
| JPS59200999A (en) * | 1983-04-28 | 1984-11-14 | 日揮株式会社 | Method of melting and solidifying incineration ash of radioactive waste |
-
1985
- 1985-04-24 JP JP60086246A patent/JPH07104439B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849665A (en) * | 1981-09-10 | 1983-03-23 | 京セラ株式会社 | Ceramic body for dielectric heating |
| JPS59199576A (en) * | 1983-04-27 | 1984-11-12 | 住友電気工業株式会社 | Manufacture of fine silicon carbide sintered body |
| JPS59200999A (en) * | 1983-04-28 | 1984-11-14 | 日揮株式会社 | Method of melting and solidifying incineration ash of radioactive waste |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009192099A (en) * | 2008-02-12 | 2009-08-27 | Japan Atomic Energy Agency | Radioactive waste treatment equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07104439B2 (en) | 1995-11-13 |
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