JPH035615A - Melting equipment of incineration ash - Google Patents
Melting equipment of incineration ashInfo
- Publication number
- JPH035615A JPH035615A JP13582489A JP13582489A JPH035615A JP H035615 A JPH035615 A JP H035615A JP 13582489 A JP13582489 A JP 13582489A JP 13582489 A JP13582489 A JP 13582489A JP H035615 A JPH035615 A JP H035615A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- melting
- molten metal
- discharge port
- discharged
- 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
- 238000002844 melting Methods 0.000 title claims abstract description 52
- 230000008018 melting Effects 0.000 title claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 239000002893 slag Substances 0.000 claims abstract description 34
- 239000002699 waste material Substances 0.000 claims description 7
- 239000012809 cooling fluid Substances 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000004927 fusion Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 239000012768 molten material Substances 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000019645 odor Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Gasification And Melting Of Waste (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野１ 本発明は都市ゴミの焼却灰の溶融装置に関し。[Detailed description of the invention] [Industrial application field 1 The present invention relates to an apparatus for melting incineration ash of municipal waste.
さらに詳しくは都市ゴミの焼却灰を溶融処理してスラグ
化し、容積を減少して排出処理する炉に関する。More specifically, the present invention relates to a furnace for melting incineration ash of municipal waste, converting it into slag, reducing its volume, and discharging it.
〔従来の技術］
都市ゴミは従来埋立等によって処分されていた。しかし
近年埋立の用地確保が非常に難しくなり、その対策とし
て都市ゴミを焼却炉で焼却してからさらに焼却灰を埋立
処理するような方法が取られるようになってきた。[Prior Art] Conventionally, municipal waste has been disposed of through landfills, etc. However, in recent years, it has become extremely difficult to secure land for landfills, and as a countermeasure, methods have been taken to incinerate municipal waste in incinerators and then dispose of the incinerated ash in landfills.
しかしながら、ゴミを焼却した後においてもゴミの量の
約ｌＯ％の焼却灰が発生し、灰の埋立処分用の用地を確
保することも困難になってきた、また灰を埋立処分する
場合においては、灰は微粉状で飛散が甚しく、あるいは
灰の中に含まれている重金属類が浸出する問題もあり、
また焼却した際の燃焼物による悪臭の発生、その池環境
上の問題も発生していた。However, even after trash is incinerated, incineration ash is generated that accounts for about 10% of the amount of trash, and it has become difficult to secure land for ash landfill disposal. The ash is in the form of a fine powder, which causes serious scattering, and there is also the problem that the heavy metals contained in the ash may leach out.
In addition, there were problems with the pond environment, such as the generation of bad odors caused by the combustion materials when incinerated.
そこでゴミの焼却灰をさらに溶融してスラグ化し、埋立
に際して容積の減少を図ると共に微粉状の灰が飛散する
ことや重金属類が浸出することを防止し、あるいは未燃
焼物の分解を行って環境上の保全を一挙に達成する溶融
装置が開発されている。このような都市ゴミの焼却灰溶
融装置としてはアーク炉、またはプラズマ炉を用いる技
術が開発されている（特願昭６３−１０２６７５、特願
昭６３−２７３１９３等）。Therefore, waste incineration ash is further melted into slag to reduce the volume when landfilled, and to prevent the scattering of fine powdered ash and leaching of heavy metals, or to decompose unburned materials to create an environmentally friendly environment. A melting device has been developed that achieves the above maintenance all at once. Techniques using arc furnaces or plasma furnaces have been developed as apparatuses for melting ash from incineration of municipal waste (Japanese Patent Applications No. 102,675/1982, Patent Applications: No. 273,193/1983, etc.).
このようなプラズマ焼却炉等で焼却処理する焼却灰の中
に金属片が混入している場合がある。焼却灰中に金属片
が混入しているとこれを溶融装置に装入する前に予め除
去しなければならない。その理由は溶融装置内の溶融物
を溜めている容積には限りがあるため金属が溶融して溶
融装置の炉底に溜まると溶融スラブの溜まる量が著しく
少なくなり溶融装置の処理能力が小さくなるからである
。このために焼却灰を溶融装置に装入する前に予め金属
片を除去しなければならなかった。Metal pieces may be mixed into the incineration ash that is incinerated in such a plasma incinerator or the like. If metal pieces are mixed in the incineration ash, these must be removed before charging the ash into the melting equipment. The reason for this is that the capacity for storing molten material in the melting equipment is limited, so if the metal melts and accumulates at the bottom of the melting equipment, the amount of molten slab that can accumulate will significantly decrease, reducing the processing capacity of the melting equipment. It is from. For this reason, metal pieces had to be removed before the incineration ash was charged into the melting device.
しかしこのような焼却灰中から金属片を選別することは
技術的にも非常に困難性が大きく、かつ処理工程が一工
程増えるのでコスト的にも問題があり実際には完全な分
離は非常に難しかった。However, it is technically extremely difficult to separate metal pieces from such incineration ash, and there is also a cost problem as it adds one step to the processing process, and in reality, complete separation is extremely difficult. was difficult.
このために、焼却灰溶融装置中に金属片が入り溶融装置
の灰溜りの容積が小さ（なり、長期連続操業が妨げられ
るという問題があった。For this reason, there was a problem in that metal pieces entered the incinerated ash melting device and the volume of the ash reservoir in the melting device became small, which hindered long-term continuous operation.
また、焼却灰の溶融装置は連続的に焼却灰を供給し、こ
れを溶融して溶融スラグとし、これを連続的に排滓孔か
ら排出するようになっている。この場合に高温の溶融ス
ラグにより排滓孔の炉内側の耐火物が侵食される。従っ
て耐火物の修理を頻繁に行わなければならなかった。こ
のために焼却灰溶融装置の長期連続操業が妨げられると
いう問題があった。Further, the incineration ash melting device continuously supplies incineration ash, melts it to form molten slag, and continuously discharges the molten slag from the slag discharge hole. In this case, the high-temperature molten slag erodes the refractory inside the furnace of the slag discharge hole. Therefore, repairs to the refractories had to be carried out frequently. This has caused a problem in that long-term continuous operation of the incineration ash melting device is hindered.
〔発明が解決しようとする課題１
本発明の課題は、プラズマを用いた都市ゴミの焼却灰の
溶融装置において、焼却灰中に混入した金属片を予め除
去しな（でも、長期連続操業を妨げられないような溶融
炉を開発することにある６また、排滓孔の炉内側部分が
侵食されて頻繁に修理を行うために長期連続操業が妨げ
られるという問題を解決することを目的とするものであ
る。[Problem to be Solved by the Invention 1] The problem of the present invention is that in a plasma-based melting device for municipal waste incineration ash, metal pieces mixed in the incineration ash must be removed in advance (but it is difficult to prevent long-term continuous operation. The purpose of this project is to develop a melting furnace that will not cause damage to the melting furnace.6 It also aims to solve the problem that long-term continuous operation is hindered due to frequent repairs due to erosion of the inside part of the furnace in the slag drainage hole. It is.
〔課題を解決するための手段］
本発明は、都市ゴミを焼却する焼却灰の溶融装置におい
て、溶融装置の溶融炉本体な傾転自在に支持すると共に
、排滓孔より高い位置に、溶融炉本体を傾転したとき炉
底に溜まった溶融金属を排出する排出孔を設け、この排
出孔に開閉自在なスライディングゲートを設けたことを
特徴とする焼却灰の溶融装置である。[Means for Solving the Problems] The present invention provides an incineration ash melting device for incinerating municipal waste, in which the melting furnace body of the melting device is rotatably supported, and the melting furnace is installed at a position higher than the slag discharge hole. This incinerated ash melting device is characterized by having a discharge hole for discharging molten metal accumulated at the bottom of the furnace when the main body is tilted, and a sliding gate that can be freely opened and closed provided in the discharge hole.
また、本発明は、焼却灰溶融装置において、排滓孔の周
囲の耐火物中に金属製のパイプを埋め込み、このパイプ
に冷却用流体供給装置を結合したことを特徴とする焼却
灰の溶融装置である。Further, the present invention provides an incineration ash melting apparatus characterized in that a metal pipe is embedded in the refractory material around the slag discharge hole, and a cooling fluid supply device is coupled to this pipe. It is.
〔作用Ｊ
本発明によれば、焼却灰溶融装置の溶融炉本体を傾転自
在に支持して右き、傾転したときに溶融金属を排出する
排出孔を設けたので、操業中に溶融金属の量が許容量以
上に増加した場合、溶融炉を傾転して溶融金属排出孔か
ら炉底に溜った溶融金属を排出することができる。従っ
て、炉を休止することなく長期操業することが可能とな
る。[Operation J According to the present invention, the melting furnace body of the incinerated ash melting device is supported so as to be tiltable and turned to the right, and a discharge hole is provided for discharging molten metal when tilting. If the amount increases beyond the allowable amount, the melting furnace can be tilted to discharge the molten metal accumulated at the bottom of the furnace from the molten metal discharge hole. Therefore, it becomes possible to operate the furnace for a long period of time without stopping the furnace.
また、連続排滓孔の周囲の炉内側耐火物の中に金属製の
パイプ、例えば鋼管を配設し、このパイプ中に冷却用流
体を供給して空気を循環させて耐火物を冷却するように
したので、連続排滓による耐火物の損耗を減少させるこ
とができ、焼却灰供給装置の長期安定運転が可能となっ
た。In addition, a metal pipe, such as a steel pipe, is installed in the refractory inside the furnace around the continuous slag drainage hole, and a cooling fluid is supplied into this pipe to circulate air and cool the refractory. As a result, it was possible to reduce the wear and tear on the refractories due to continuous slag removal, and it became possible to operate the incineration ash supply equipment stably over a long period of time.
［実施例］
実施例１
第１図は本発明の実施例の焼却灰の溶融装置１の縦断面
図を示したものである。溶融装置ｌは炉底２に溶融物す
なわち、溶融スラグ４．溶融金属５を貯溜する溶融物溜
り３があり、この溶融物溜り３の上端から溶融スラグ４
がオーバーフローするように連続排滓孔６を備えている
。[Example] Example 1 FIG. 1 shows a longitudinal sectional view of an incineration ash melting apparatus 1 according to an example of the present invention. The melting device 1 supplies a molten material, ie, molten slag 4. to the furnace bottom 2. There is a molten material reservoir 3 that stores molten metal 5, and molten slag 4 is poured from the upper end of this molten material reservoir 3.
A continuous drainage hole 6 is provided so that the sludge can overflow.
またこの溶融装置１は、プラズマトーチ７を備えており
、図示省略した焼却灰供給装置によって連続的に供給さ
れる焼却灰をプラズマ８により溶融する。The melting device 1 also includes a plasma torch 7, and uses plasma 8 to melt incinerated ash that is continuously supplied by an incinerated ash supply device (not shown).
オーバーフローして排滓孔６から排出された溶融スラグ
４は噴射水ノズル２１かも噴射された高圧水により水砕
化され、トラフ２２を流下して、水槽２３内に溜る。搬
出装置２４はこれを掻き上げ、容器２５内に水砕スラグ
２６を回収する。The molten slag 4 overflowed and discharged from the slag hole 6 is pulverized by the high-pressure water jetted from the jet water nozzle 21, flows down the trough 22, and accumulates in the water tank 23. The carry-out device 24 scrapes up the slag and collects the granulated slag 26 into the container 25.
連続排滓孔６より高い位置に溶融金属５を排出する排出
孔９を備える。この排出孔９はスライディングゲートｌ
Ｏによって通常は閉止されている。第２図は溶融金属５
が溶融物溜り３に溜まったのでこの溶融装置ｌを傾転し
て、溶融金属排出孔９から溶融金属５を排出している状
態を示したものである。溶融装置１を傾転してスライデ
ィングゲート１０を開けると溶融金属５は重力により溶
融装置ｌから排出される。A discharge hole 9 for discharging molten metal 5 is provided at a higher position than the continuous slag discharge hole 6. This discharge hole 9 is a sliding gate l.
It is normally closed by O. Figure 2 shows molten metal 5
The figure shows a state in which the melting device 1 is tilted and the molten metal 5 is discharged from the molten metal discharge hole 9 because it has accumulated in the molten metal reservoir 3. When the melting device 1 is tilted and the sliding gate 10 is opened, the molten metal 5 is discharged from the melting device 1 by gravity.
溶融金属５がすべて排出されて、次に溶融スラグが排出
され始めたら、直ちにスライディングー１−１０を閉止
する９次いで溶融装置ｌを逆に傾転して第１図に示す元
の定位置に戻す。As soon as all the molten metal 5 has been discharged and the molten slag has started to be discharged, immediately close the sliding device 1-10.9 Then tilt the melting device 1 back to its original position as shown in Figure 1. return.
以上の作業中も溶融操業を継続することが可能である。It is possible to continue the melting operation even during the above operations.
従ってこの溶融装置によれば、溶融装置に装入する焼却
灰の中から予め金属片を除外することなくそのまま溶融
し、炉内に溶融金属５が溜まった時点で溶融装置ｌを傾
転して溶融金属５を排出し、操業を続ければよいので、
溶融装置の連続安定操業が可能となる。Therefore, according to this melting device, metal pieces are not removed from the incinerated ash charged into the melting device and are melted as they are, and when the molten metal 5 has accumulated in the furnace, the melting device l is tilted. All you have to do is discharge the molten metal 5 and continue operation.
Continuous and stable operation of the melting equipment becomes possible.
実施例２
第３図は１本発明の別の実施例の焼却灰溶融装置ｌの縦
断面図を示したものである。溶融物溜り３からオーバー
フローする溶融物を連続的に排出する連続排滓孔６の周
囲には冷却用のパイプ１１が埋込んである。このパイプ
１１は金属製のパイプであって、銅製のものが望ましい
。Embodiment 2 FIG. 3 shows a longitudinal cross-sectional view of an incineration ash melting apparatus l according to another embodiment of the present invention. A cooling pipe 11 is embedded around a continuous slag discharge hole 6 through which melt overflowing from the melt reservoir 3 is continuously discharged. This pipe 11 is a metal pipe, preferably copper.
このパイプ１１に連続的に空気１２を供給する供給装置
１３が結合されており、この冷却空気１２によって耐火
物１４を冷却し連続排滓による耐火物の損耗を減少させ
ることができる。A supply device 13 that continuously supplies air 12 is connected to this pipe 11, and the cooling air 12 can cool the refractory 14 and reduce wear and tear on the refractory due to continuous slag.
冷却媒体としては、空気のほかに水その他の冷却パイプ
１１内に供給する媒体を用いることもできる。しかしな
がら空気冷却にしておけば、長時間操業後の経時変化に
より耐火物が損耗し、溶融スラグあるいは溶融金属が冷
却用パイプに接触し、これを溶損させた場合においても
水蒸気爆発を起こす等の危険がないので安全である。As the cooling medium, in addition to air, water or other medium to be supplied into the cooling pipe 11 can also be used. However, if air cooling is used, the refractory will wear out due to changes over time after long-term operation, and even if molten slag or molten metal comes into contact with the cooling pipe and melts it, a steam explosion may occur. It is safe because there is no danger.
〔発明の効果Ｊ
本発明によれば焼却灰中に混入した金属片をあらかしめ
処理する等の費用が不要となる。また溶融金属を溶融金
属排出孔から随時排出して操業を続けることができるの
で焼却灰溶融装置の長期連続操業が可能となる。[Effects of the Invention J According to the present invention, there is no need for expenses such as cleaning and treating metal pieces mixed in incineration ash. Further, since the operation can be continued by discharging molten metal from the molten metal discharge hole at any time, long-term continuous operation of the incineration ash melting apparatus is possible.
また、連続排滓孔の周囲に冷却パイプを埋込み冷却する
ので、連続排滓による耐火物の損耗を著しく減少させる
ことができる。従って、長期連続操業が可能となり、修
繕費を削減することができ、炉の稼動率の向上を期待す
ることができる。Furthermore, since a cooling pipe is embedded around the continuous slag discharge hole for cooling, wear and tear on the refractories due to continuous slag discharge can be significantly reduced. Therefore, long-term continuous operation is possible, repair costs can be reduced, and an improvement in the operating rate of the furnace can be expected.
従って、大幅な操業のコストダウンを図ることができる
。Therefore, it is possible to significantly reduce operating costs.
第１図は本発明の実施例の焼却灰溶融装置の縦断面図、
第２図はこの溶融装置を傾転した状態を示す縦断面図、
第３図は本発明の別の実施例の焼却灰溶融装置の縦断面
図である。
ｌ・・・溶融装置
２・・・炉底
３・・・溶融物溜り
４・−・溶融スラグ
５・・・溶融金属
６・・・排滓孔
７・・・プラズマトーチ
８・・・プラズマ
９・・・排出孔
１０・・・スライディングゲート
１１・・・パイプ
１２・−空気
１３・・・供給装置
１４−・・耐火物FIG. 1 is a longitudinal sectional view of an incineration ash melting device according to an embodiment of the present invention;
FIG. 2 is a vertical cross-sectional view showing the state in which this melting device is tilted;
FIG. 3 is a longitudinal sectional view of an incineration ash melting device according to another embodiment of the present invention. l... Melting device 2... Furnace bottom 3... Molten material pool 4... Molten slag 5... Molten metal 6... Slag exhaust hole 7... Plasma torch 8... Plasma 9 ... Discharge hole 10 ... Sliding gate 11 ... Pipe 12 - Air 13 ... Supply device 14 - ... Refractory
Claims (1)
融装置の溶融炉本体を傾転自在に支持すると共に、排滓
孔より高い位置に、炉底に溜まる溶融金属を排出する排
出孔を設け、該排出孔に開閉自在なスライディングゲー
トを設けたことを特徴とする焼却灰の溶融装置。 ２ 焼却灰溶融装置において、排滓孔の周囲の耐火物中
に金属製のパイプを埋め込み、該パイプに冷却用流体供
給装置を結合したことを特徴とする焼却灰の溶融装置。[Scope of Claims] 1. In an incineration ash melting device for incinerating municipal waste, the melting furnace body of the melting device is rotatably supported, and molten metal accumulated at the bottom of the furnace is discharged to a position higher than a slag discharge hole. 1. An apparatus for melting incinerated ash, characterized in that the discharge hole is provided with a sliding gate that can be freely opened and closed. 2. An incinerated ash melting device, characterized in that a metal pipe is embedded in the refractory around the slag discharge hole, and a cooling fluid supply device is connected to the pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135824A JPH0774690B2 (en) | 1989-05-31 | 1989-05-31 | Method and apparatus for melting incinerated ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1135824A JPH0774690B2 (en) | 1989-05-31 | 1989-05-31 | Method and apparatus for melting incinerated ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH035615A true JPH035615A (en) | 1991-01-11 |
| JPH0774690B2 JPH0774690B2 (en) | 1995-08-09 |
Family
ID=15160652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1135824A Expired - Lifetime JPH0774690B2 (en) | 1989-05-31 | 1989-05-31 | Method and apparatus for melting incinerated ash |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0774690B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170785A (en) * | 2005-12-26 | 2007-07-05 | Vsd:Kk | Humidified incinerated ash melting furnace |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675910B (en) * | 2019-01-17 | 2021-01-05 | 北京工大环能科技有限公司 | Treatment method for heavy metals such as dioxin, mercury and the like in fly ash |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55131614A (en) * | 1979-03-29 | 1980-10-13 | Von Roll Ag | Method and slag tap furnace for melting slag of incinerator |
| JPS6224694A (en) * | 1985-07-25 | 1987-02-02 | 株式会社日立製作所 | Multilayer wiring board |
-
1989
- 1989-05-31 JP JP1135824A patent/JPH0774690B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55131614A (en) * | 1979-03-29 | 1980-10-13 | Von Roll Ag | Method and slag tap furnace for melting slag of incinerator |
| JPS6224694A (en) * | 1985-07-25 | 1987-02-02 | 株式会社日立製作所 | Multilayer wiring board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007170785A (en) * | 2005-12-26 | 2007-07-05 | Vsd:Kk | Humidified incinerated ash melting furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0774690B2 (en) | 1995-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0711254B1 (en) | Method of rendering inert, with the aid of a plasma torch, products containing metals, in particular heavy metals, and facility for carrying out said method | |
| JPH035615A (en) | Melting equipment of incineration ash | |
| JP3280265B2 (en) | Apparatus and method for melting incineration residue and fly ash | |
| JP3904379B2 (en) | Dust discharge device for secondary combustion chamber | |
| JPH10132230A (en) | Waste melting furnace and waste melting method | |
| JPH09243047A (en) | Waste fusing facility equipped with slag cleaner, and manufacture of granulated slag | |
| JP3809039B2 (en) | Method of granulating molten metal in melting furnace | |
| RU2012080C1 (en) | Equipment for reprocessing of solid radioactive waste | |
| JP3039590B2 (en) | Plasma melting furnace and operation method thereof | |
| JP3714384B2 (en) | Ash melting furnace | |
| JP3049170B2 (en) | Swirling flow melting furnace | |
| JPH11325448A (en) | Mold conveyor and its operation method | |
| JP4564901B2 (en) | Molten metal hot water discharge method for electric furnace type waste melting furnace | |
| JP3854451B2 (en) | Emergency shut-off device for molten metal outlet | |
| JPH0311221A (en) | Slag discharge port of incineration ash melting furnace | |
| JP4110660B2 (en) | Ash melting furnace | |
| JP2002098323A (en) | Slag removing device for melting furnace | |
| JP3921784B2 (en) | Ash melting furnace | |
| JPH11108330A (en) | Melting furnace | |
| JP3743473B2 (en) | Ash melting furnace tapping apparatus and tapping method | |
| JP3841639B2 (en) | Flue structure of ash melting furnace | |
| JP2002013719A (en) | Ash melting furnace and method of melting ashes | |
| JPH0875136A (en) | Incinerated ash melting method and device therefor | |
| JPH0463516B2 (en) | ||
| JPH06300234A (en) | Plasma melting furnace and its slag discharge method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313122 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313122 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080809 Year of fee payment: 13 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080809 Year of fee payment: 13 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090809 Year of fee payment: 14 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090809 Year of fee payment: 14 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090809 Year of fee payment: 14 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |