JPH0463217A - Formation of refractory wall of metal refining furnace - Google Patents
Formation of refractory wall of metal refining furnaceInfo
- Publication number
- JPH0463217A JPH0463217A JP17365190A JP17365190A JPH0463217A JP H0463217 A JPH0463217 A JP H0463217A JP 17365190 A JP17365190 A JP 17365190A JP 17365190 A JP17365190 A JP 17365190A JP H0463217 A JPH0463217 A JP H0463217A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- wall
- cooling
- refractory
- cooling 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 31
- 238000007670 refining Methods 0.000 title abstract description 5
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 239000002893 slag Substances 0.000 claims abstract description 27
- 239000002826 coolant Substances 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- -1 for example Substances 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010016275 Fear Diseases 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Landscapes
- Manufacture Of Iron (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、金属精錬炉の耐火壁を形成するための方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for forming refractory walls of metal smelting furnaces.
従来の技術
典型的な先行技術は、第４図に示されており、このよう
な構成は、たとえば特開平１−１９１７２３に開示され
ている。この先行技術では、炉体１の内部に耐火壁３が
ライニングされており、スラグに接触する位置付近で耐
火壁３ａと鉄皮２との間に冷却層４を設け、この冷却層
４には冷却水を管ＦＩ＠５から圧送し、管路６から排出
し、こうしてスラグに接触する位置付近にある耐火壁３
ａの温度を下げて、その耐火壁３ａの寿命を長くする。Prior Art A typical prior art is shown in FIG. 4, and such a configuration is disclosed in, for example, Japanese Patent Laid-Open No. 1-191723. In this prior art, a refractory wall 3 is lined inside the furnace body 1, and a cooling layer 4 is provided between the refractory wall 3a and the steel shell 2 near the position where it contacts the slag. Cooling water is pumped through the pipe FI@5 and discharged through the pipe 6, and thus the refractory wall 3 near the position where it comes into contact with the slag.
To extend the life of the fireproof wall 3a by lowering the temperature of the firewall 3a.
発明が解決すべき課題
このような先行技術では、冷却層４を設けることによっ
て耐火壁３ａの損耗を抑制することはできるけれども、
この耐火壁３ａの損耗を完全に阻止することはできず、
耐火壁３ａの交換をする必要がある。このような耐火壁
３ａが損耗したときには、そのライニング作業のために
、金属精錬炉の操業を長時間、休止しなければならず、
またこのようなライニング作業は重労働である。Problems to be Solved by the Invention In such prior art, although it is possible to suppress the wear and tear of the fireproof wall 3a by providing the cooling layer 4,
It is not possible to completely prevent this wear and tear on the fireproof wall 3a,
It is necessary to replace the fireproof wall 3a. When such a fireproof wall 3a is worn out, the operation of the metal smelting furnace must be stopped for a long time for lining work,
Moreover, such lining work is hard labor.
本発明の目的は、保守を容易にし、その保守のための金
属精錬炉の休止期間を短くすることができるようにた金
属精錬炉の耐火壁形成方法を提供することである。An object of the present invention is to provide a method for forming a refractory wall of a metal smelting furnace, which facilitates maintenance and shortens the downtime of the metal smelting furnace for maintenance.
課題を解決するための手段
第１発明は、炉体内のスラグの位置付近に、冷却媒体に
よって冷却される金属製冷却壁を配置し、操業時のスラ
グによって冷却壁の内側の表面に耐火物層を形成するこ
とを特徴とする金属精錬炉の耐火壁形成方法である。Means for Solving the Problems The first invention arranges a metal cooling wall that is cooled by a cooling medium near the position of slag in the furnace body, and a refractory layer is formed on the inner surface of the cooling wall by the slag during operation. This is a method for forming a refractory wall for a metal smelting furnace, characterized by forming a refractory wall.
第２発明は、炉体内のスラグ位置付近に、冷却媒体によ
って冷却される金属製冷却壁を配置し、該冷却壁内側に
予め耐火壁を設け、その表面に耐火物層を形成すること
を特徴とする金属精錬炉の耐火壁形成方法である。The second invention is characterized in that a metal cooling wall that is cooled by a cooling medium is arranged near the slag position in the furnace body, a refractory wall is previously provided inside the cooling wall, and a refractory layer is formed on the surface of the refractory wall. This is a method for forming a refractory wall in a metal smelting furnace.
作 用
本発明に従えば、炉体内のスラグの位置付近に、金属製
冷却壁を配置し、この冷却壁は、冷却媒体、たとえば水
などの液体またはガスによって冷却され、金属精錬炉の
操業時に、スラグが、この冷却壁の表面に接触すること
によって、その冷却壁の表面に耐火物層が強制的に生成
される。したがってその耐火物層の寿命を飛躍的に延ば
すことができ、スラグの位置付近に耐火壁をライニング
する作業が不要となり、またその耐火壁のライニング作
業を行うために、金属精錬炉の操業を休止すべき期間の
短縮を図ることができる。According to the present invention, a metal cooling wall is arranged near the position of the slag in the furnace body, and this cooling wall is cooled by a cooling medium, for example, a liquid or gas such as water, and is cooled during operation of the metal smelting furnace. When the slag comes into contact with the surface of the cooling wall, a refractory layer is forcibly formed on the surface of the cooling wall. Therefore, the life of the refractory layer can be dramatically extended, eliminating the need for lining a refractory wall near the slag location, and suspending the operation of the metal smelting furnace in order to line the refractory wall. It is possible to shorten the period of time required.
冷却壁は金属製であり、その表面に直接に耐火物層が操
業時に強制的に生成されてもよく、あるいはまた他の実
施例として冷却壁の表面に、予め冷却効果と冷却壁の保
護を兼ねた耐火壁を形成しておき、その予め形成されて
いる耐火壁の上に、操業時に、強制的に耐火物層がさら
に生成されるようにしてもよい。The cooling wall is made of metal, and a refractory layer may be forcibly formed directly on its surface during operation, or as another embodiment, the surface of the cooling wall may be preliminarily provided with a cooling effect and protection. A refractory wall that also serves as a fireproof wall may be formed in advance, and a refractory layer may be forcibly formed on top of the pre-formed refractory wall during operation.
実施例 第１図は、本発明の一実施例の断面図である。Example FIG. 1 is a sectional view of one embodiment of the present invention.
金属精錬炉８は、その炉体９の上部から、各種原料を投
入し、ランス１０などを用いて酸素を吹込んで、金属溶
湯１１を得る。炉体９の下部には溶湯１１が貯留され、
その上にスラグ１２が形成され、スラグ１２の上方の空
間１３は、２次燃焼された高温ガスが存在する。炉体９
は基本的には、鉄皮１４の内面に耐火壁１５がライニン
グされて構成される。炉体９内のスラグ１２の位置付近
には、金属製、たとえば鋼、銅などの材料から成る冷却
壁１６が配置される。In the metal refining furnace 8, various raw materials are charged from the upper part of the furnace body 9, and oxygen is blown in using a lance 10 or the like to obtain a molten metal 11. Molten metal 11 is stored in the lower part of the furnace body 9,
A slag 12 is formed thereon, and a space 13 above the slag 12 contains high-temperature gas that has been secondary combusted. Furnace body 9
Basically, the inner surface of the iron skin 14 is lined with a fireproof wall 15. A cooling wall 16 made of metal, such as steel or copper, is arranged near the location of the slag 12 in the furnace body 9 .
第２図は、冷却壁１６の斜視図である。この冷却壁１６
は、ジグザグに屈曲した流路１７を有し、流路１７の一
端部はヘッダ１８に接続され、管路１９を経て冷却媒体
としてのたとえば常温の水が供給源２０から圧送される
。冷却壁１６に形成された流路１７の他端部はヘッダ２
１に接続され、管路２２を経て排出される。こうして冷
却壁１６が冷却される。FIG. 2 is a perspective view of the cooling wall 16. This cooling wall 16
has a flow path 17 bent in a zigzag manner, one end of the flow path 17 is connected to a header 18, and a cooling medium, such as water at room temperature, is pumped from a supply source 20 through a pipe 19. The other end of the flow path 17 formed in the cooling wall 16 is connected to the header 2.
1 and is discharged via conduit 22. In this way, the cooling wall 16 is cooled.
冷却壁表面は自動的に生成される耐火物層の付着効果を
上げるため、突起物を取付けてもよい。Projections may be attached to the cooling wall surface to improve the adhesion effect of the automatically generated refractory layer.
本件金属精錬炉８の操業時に、スラグ１２は冷却壁１６
の炉体９の内方に臨む表面１６ａに、耐火物層２３が強
制的に生成される。この耐火物層の組成は、たとえば（
Ｓ ｉ Ｏ２，Ａｌ２Ｏ３，Ｃａ ｏ 。During the operation of the present metal smelting furnace 8, the slag 12 is
A refractory layer 23 is forcibly formed on the surface 16a facing inward of the furnace body 9. The composition of this refractory layer is, for example (
SiO2, Al2O3, Cao.
Ｍｇｏ、ＭｎＯ，Ｆｅａｒｓ）から成る。冷却壁１６は
、鉄皮１４の働きを兼ねてもよいし、別に構成された鉄
皮内側に配置してもよい。Mgo, MnO, Fears). The cooling wall 16 may also serve as the iron skin 14, or may be placed inside a separately configured iron skin.
このような実施例では、耐火物層２３が操業時に損耗す
る量と、耐火壁１６の表面１６ａに生成される量とが平
衡し、こうして耐火物層２３がほぼ一定の厚みで形成さ
れることになる。これによって耐火物層２３の寿命を飛
躍的に延ばすことが可能となり、このスラグ１２の位置
付近での耐火壁のライニング作業が不要となり、したが
って金属精錬炉のライニング作業のための休止期間を減
少することができるようになるとともにライニングコス
トを下げることができる。In such an embodiment, the amount that the refractory layer 23 is worn out during operation is balanced with the amount that is generated on the surface 16a of the refractory wall 16, so that the refractory layer 23 is formed with a substantially constant thickness. become. This makes it possible to dramatically extend the life of the refractory layer 23, eliminating the need for lining the refractory wall near the location of this slag 12, and thus reducing downtime for lining the metal smelting furnace. This makes it possible to reduce lining costs.
第３図は、第２発明の実施例の一部の断面図である。こ
の実施例は前述の実施例に類似し、対応する部分には同
一の参照符を付す、注目すべきはこの実施例では、冷却
壁１６の炉体９内方側の表面に、耐火物層２４が予め形
成されており、このような耐火物層２４が予め形成され
ている冷却壁１６を、炉体９に取付けて、金属精錬炉８
の操業を行う。これによって耐火物層２４の表面にさら
に耐火物層２５がスラグ１２によって強制的に生成され
る。FIG. 3 is a cross-sectional view of a part of the embodiment of the second invention. This embodiment is similar to the previous embodiment, and corresponding parts are given the same reference numerals.It should be noted that in this embodiment, a refractory layer is provided on the surface of the cooling wall 16 on the inside of the furnace body 9. 24 is formed in advance, and the cooling wall 16 on which such a refractory layer 24 is formed in advance is attached to the furnace body 9, and the metal refining furnace 8 is opened.
operations. As a result, a refractory layer 25 is forcibly formed on the surface of the refractory layer 24 by the slag 12.
冷却媒体としては、液体のほかにＮ２などの不活性ガス
などのガスであってもよい。In addition to liquid, the cooling medium may be a gas such as an inert gas such as N2.
発明の効果
以上のように本発明によれば、炉体内のスラグの位置付
近に、冷却媒体によって冷却される金属製冷却壁を配置
し、金属精錬炉の操業時のスラグによって、冷却壁の表
面に耐火物層を強制的に生成して形成するようにしたの
で、その耐火物層の寿命を飛躍的に延ばすことができ、
スラグの位置付近における耐火壁のライニング作業が不
要となり、したがって金属精錬炉の耐火壁ライニングの
ための休止期間の短縮を図ることができ、さらにライニ
ングコストの低減を図ることができる。Effects of the Invention As described above, according to the present invention, a metal cooling wall that is cooled by a cooling medium is arranged near the position of slag in the furnace body, and the surface of the cooling wall is Since the refractory layer is forcibly generated and formed, the life of the refractory layer can be dramatically extended.
There is no need for lining the refractory wall near the slag location, and therefore the downtime for refractory wall lining of the metal smelting furnace can be shortened, and the lining cost can also be reduced.
さらにスラグ付近に配置した冷却壁が鉄皮の働きを兼ね
た場合は、ライニング作業が容易になり、鉄皮内側に冷
却層を設ける組立作業を省くことができ、金属精錬炉の
製造が容易になる。Furthermore, if the cooling wall placed near the slag doubles as the steel shell, the lining work becomes easier, and the assembly work to provide a cooling layer inside the steel shell can be omitted, making it easier to manufacture metal smelting furnaces. Become.
第１図は本発明の一実施例の断面図、第２図は第１図に
示される実施例の冷却壁１６の斜視図、第３図は本発明
の他の実施例の断面図、第４図は先行技術の一部の断面
図である。
８・・・金属精錬炉、９−・・炉体、１０・・・ランス
、１１・・・溶湯、１２ スラグ、１４・・・鉄皮、１
５・耐火壁、１６・・冷却壁、２Ｂ、２４．２５・・・
耐火物層1 is a cross-sectional view of one embodiment of the present invention, FIG. 2 is a perspective view of the cooling wall 16 of the embodiment shown in FIG. 1, and FIG. 3 is a cross-sectional view of another embodiment of the present invention. FIG. 4 is a cross-sectional view of a portion of the prior art. 8... Metal refining furnace, 9-... Furnace body, 10... Lance, 11... Molten metal, 12 Slag, 14... Iron shell, 1
5. Fireproof wall, 16. Cooling wall, 2B, 24.25...
refractory layer
Claims (2)
冷却される金属製冷却壁を配置し、 操業時のスラグによつて冷却壁の内側の表面に耐火物層
を形成することを特徴とする金属精錬炉の耐火壁形成方
法。(1) A metal cooling wall that is cooled by a cooling medium is placed near the slag location in the furnace body, and a refractory layer is formed on the inner surface of the cooling wall by the slag during operation. Characteristic method for forming fireproof walls in metal smelting furnaces.
却される金属製冷却壁を配置し、該冷却壁内側に予め耐
火壁を設け、その表面に耐火物層を形成することを特徴
とする金属精錬炉の耐火壁形成方法。(2) A metal cooling wall that is cooled by a cooling medium is arranged near the slag position in the furnace body, a refractory wall is previously provided inside the cooling wall, and a refractory layer is formed on the surface of the cooling wall. A method for forming fireproof walls in metal smelting furnaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02173651A JP3081626B2 (en) | 1990-06-30 | 1990-06-30 | Method of forming refractory wall of metal smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02173651A JP3081626B2 (en) | 1990-06-30 | 1990-06-30 | Method of forming refractory wall of metal smelting furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0463217A true JPH0463217A (en) | 1992-02-28 |
| JP3081626B2 JP3081626B2 (en) | 2000-08-28 |
Family
ID=15964568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02173651A Expired - Fee Related JP3081626B2 (en) | 1990-06-30 | 1990-06-30 | Method of forming refractory wall of metal smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3081626B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267799B1 (en) | 1995-04-07 | 2001-07-31 | Technological Resources Pty. Ltd. | Method of producing metals and metal alloys |
| US6322745B1 (en) | 1998-07-01 | 2001-11-27 | Technological Resources Pty. Ltd. | Direct smelting vessel and direct smelting process |
| JP2006181836A (en) * | 2004-12-27 | 2006-07-13 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| JP2008168547A (en) * | 2007-01-12 | 2008-07-24 | Kata System:Kk | Injection-molding die |
| CN104713364A (en) * | 2015-02-25 | 2015-06-17 | 托普工业(江苏)有限公司 | Medium-frequency inductance electricity molten steel leakage preventing method |
-
1990
- 1990-06-30 JP JP02173651A patent/JP3081626B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267799B1 (en) | 1995-04-07 | 2001-07-31 | Technological Resources Pty. Ltd. | Method of producing metals and metal alloys |
| US6322745B1 (en) | 1998-07-01 | 2001-11-27 | Technological Resources Pty. Ltd. | Direct smelting vessel and direct smelting process |
| JP2006181836A (en) * | 2004-12-27 | 2006-07-13 | Toyo Mach & Metal Co Ltd | Injection molding machine |
| JP2008168547A (en) * | 2007-01-12 | 2008-07-24 | Kata System:Kk | Injection-molding die |
| CN104713364A (en) * | 2015-02-25 | 2015-06-17 | 托普工业(江苏)有限公司 | Medium-frequency inductance electricity molten steel leakage preventing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3081626B2 (en) | 2000-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |