JPH0554532U - Molten metal gas injection stirrer - Google Patents
Molten metal gas injection stirrerInfo
- Publication number
- JPH0554532U JPH0554532U JP11221191U JP11221191U JPH0554532U JP H0554532 U JPH0554532 U JP H0554532U JP 11221191 U JP11221191 U JP 11221191U JP 11221191 U JP11221191 U JP 11221191U JP H0554532 U JPH0554532 U JP H0554532U
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- porous plug
- tuyere brick
- gas
- stirrer
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 title abstract description 5
- 239000007924 injection Substances 0.000 title abstract description 5
- 239000011449 brick Substances 0.000 claims abstract description 26
- 238000007664 blowing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 230000007797 corrosion Effects 0.000 claims abstract description 14
- 239000000155 melt Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 description 30
- 229910000831 Steel Inorganic materials 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
(57)【要約】
【目的】 本考案は、取鍋等の溶融金属容器に装着する
ポ−ラスプラグと羽口れんがとを一体的としたガス吹込
み攪拌装置を、安定して連続的にガス吹き込みを完遂す
ることにある。
【構成】 ポ−ラスプラグ１を羽口れんが２に一体的に
装着した溶融金属用のガス吹込み攪拌装置３において、
羽口れんが２の稼働面側から全長の１／３ないし１／２
の範囲を溶損しやすい低耐食性材質とするとともに、そ
の非稼働面側を溶損しにくい高耐食性材質で形成してい
る。
(57) [Abstract] [Purpose] The present invention provides a gas blowing stirrer that integrates a porous plug and a tuyere brick mounted on a molten metal container such as a ladle to stably and continuously discharge gas. It is to complete the blowing. [Structure] In a gas injection stirrer 3 for molten metal, in which a porous plug 1 is integrally attached to a tuyere brick 2,
1/3 to 1/2 of the total length from the working surface side of the tuyere brick 2
The range is made of a low corrosion resistant material that easily melts, and the non-operating surface side is made of a highly corrosion resistant material that does not easily melt.
Description
【０００１】[0001]
本考案は、冶金分野における取鍋等の底部に取り付ける溶融金属ガス吹込み攪 拌装置に関し、特にガス吹込み用のポ−ラスプラグと羽口れんがとを一体的に形 成した溶融金属ガス吹込み攪拌装置に関する。 The present invention relates to a stirrer for injecting molten metal gas, which is attached to the bottom of a ladle or the like in the field of metallurgy, and more particularly to a molten metal gas injector in which a porous plug for injecting gas and tuyere brick are integrally formed. It relates to a stirring device.
【０００２】[0002]
本出願人は、図３のようにポ−ラスプラグ１５を羽口れんが１６に一体的に装 着したガス吹込み攪拌装置１７を開発している。このガス吹込み攪拌装置１７は 、溶融金属容器への装着が容易となるとともに、ポ−ラスプラグ１５と羽口れん が１６との間の目地部から漏鋼することが防止できて好ましい。 The present applicant has developed a gas injection stirring device 17 in which a porous plug 15 is integrally attached to a tuyere brick 16 as shown in FIG. This gas blowing stirrer 17 is preferable because it can be easily mounted on the molten metal container and that steel leakage from the joint between the porous plug 15 and the tuyere brick 16 can be prevented.
【０００３】[0003]
しかし、ポ−ラスプラグ１５に比べて羽口れんが１６の方の溶損が早いと、ポ −ラスプラグ１５が突き出し状態となり、スポ−リングして低寿命となるもので あった。 However, if the tuyere brick 16 was melted faster than the porous plug 15, the porous plug 15 was in a protruding state and spouted, resulting in a shorter life.
【０００４】 また、ポ−ラスプラグ１５の溶損量が羽口れんが１６に比べて大きいときは、 図４のようにポ−ラスプラグ１５の上面部がへこんでポ−ラスプラグ１５の上面 に溶鋼が溜りやすく、ガス吹き込み終了時に溜まった溶鋼がポ−ラスプラグ１５ の表面に凝固するため、次のガス吹き込み時にガスが出ない場合が生じて、実操 業に支障をきたしていた。When the amount of melting loss of the porous plug 15 is larger than that of the tuyere brick 16, the upper surface of the porous plug 15 is dented and molten steel is accumulated on the upper surface of the porous plug 15 as shown in FIG. Since the molten steel accumulated at the end of gas blowing is solidified on the surface of the porous plug 15 in some cases, no gas may come out at the time of the next gas blowing, impeding the actual operation.
【０００５】 このように従来のガス吹込み攪拌装置では、使用時にポ−ラスプラグと羽口れ んがとの段差が大きくなり、ガス吹込み攪拌装置を交換せざるを得なくなるもの であった。As described above, in the conventional gas blowing stirrer, the step difference between the porous plug and the tuyere brick becomes large during use, and the gas blowing stirrer must be replaced.
【０００６】[0006]
【課題を解決するための手段】 本考案は、上記のような点に鑑みたもので、上記の課題を解決するために、ポ −ラスプラグを羽口れんがに一体的に装着した溶融金属ガス吹込み攪拌装置にお いて、上記羽口れんがの稼働面側から全長の１／３ないし１／２の範囲を溶損し やすい低耐食性材質とするとともに、その非稼働面側は溶損しにくい高耐食性材 質で形成したことを特徴とする溶融金属ガス吹込み攪拌装置を提供するにある。Means for Solving the Problems The present invention has been made in view of the above points, and in order to solve the above problems, a molten metal gas blower in which a porous plug is integrally attached to a tuyere brick is provided. In the mixing stirrer, the range of 1/3 to 1/2 of the total length from the working surface side of the tuyere brick is made a low corrosion resistant material that is easily melted, and the non-working surface side is highly corrosion resistant material that is not easily melted. It is an object of the present invention to provide a stirrer for injecting a molten metal gas, which is characterized in that it is formed with quality.
【０００７】[0007]
本考案にあっては、ポ−ラスプラグを羽口れんがに一体的に装着した溶融金属 ガス吹込み攪拌装置の、上記羽口れんがの稼働面側から全長の１／３ないし１／ ２の範囲を溶損しやすい低耐食性材質とするとともに、その非稼働面側は溶損し にくい高耐食性材質で形成することによって、ポ−ラスプラグと羽口れんがの溶 損量を平準化できて、溶融金属容器の寿命を延長することができる。 According to the present invention, a molten metal gas blowing stirrer in which a porous plug is integrally attached to a tuyere brick is provided with a range of 1/3 to 1/2 of the entire length from the working surface side of the tuyere brick. By using a low corrosion resistant material that easily melts and a non-corrosive material that does not easily melt on the non-operating surface side, the amount of damage to the porous plug and tuyere brick can be equalized, and the life of the molten metal container Can be extended.
【０００８】 また、溶融金属容器を連続して使用する場合でも、ポ−ラスプラグの上面に溶 融金属が多量に溜まるのを防止できて、ガス吹き出しのトラブルを生じなくでき る。Further, even when the molten metal container is continuously used, it is possible to prevent a large amount of molten metal from being accumulated on the upper surface of the porous plug, and it is possible to prevent a gas blowing trouble.
【０００９】[0009]
以下、本考案を実施例にもとづいて説明する。図１、図２は、本考案の一実施 例である。ガス吹き込みのポ−ラスプラグ１は図１のように先端側が細くなった 円錐台形状に形成していて、羽口れんが２に一体的に装着し、ポ−ラスプラグ１ 、羽口れんが２のブロックのガス吹込み攪拌装置３をブロック毎に取鍋等の溶融 容器の底部に取り替え可能に装着できるようにしている。 Hereinafter, the present invention will be described based on embodiments. 1 and 2 show an embodiment of the present invention. As shown in FIG. 1, the gas-blown porous plug 1 is formed in the shape of a truncated cone, and is attached to the tuyere brick 2 integrally with the block of the porous plug 1 and the tuyere brick 2. The gas blowing stirrer 3 can be replaceably attached to the bottom of a melting container such as a ladle for each block.
【００１０】 ポ−ラスプラグ１は、図１のように中央部分をガスが通過可能な高耐食性の多 孔質の通気性耐火物４で形成し、その下部にガス溜まり部６を設けるとともに、 放射状に配設した１〜５mmの細径で４０〜２００mm長さのステンレス管のガス供 給を兼ねた漏鋼凝固部７を接続している。そして、これらの外側にガスを通過さ せないハイアルミナ質の高耐食性の緻密質耐火物８を充填している。９は、ポ− ラスプラグ１にアルゴン、窒素等の不活性ガスを供給するためのガス供給用接続 管である。As shown in FIG. 1, the porous plug 1 is made of a highly corrosive and highly porous breathable refractory material 4 through which gas can pass, and a gas reservoir portion 6 is provided under the porous plug material 1. A stainless steel pipe having a diameter of 1 to 5 mm and a length of 40 to 200 mm is connected to the leaking steel solidification part 7 which also serves as gas supply. The outside of these is filled with a dense refractory material 8 of high alumina, which is impervious to gas and has high corrosion resistance. Reference numeral 9 is a gas supply connecting pipe for supplying an inert gas such as argon or nitrogen to the porous plug 1.
【００１１】 一方、羽口れんが２は、図１のように上下別の材質でポ−ラスプラグ１を囲ん でおり、その下方部に段部１０を設け、上方部の周部を斜め状の尖端部１１とし た四角柱状や円柱状の筒状としている。On the other hand, the tuyere brick 2 surrounds the porous plug 1 with different materials as shown in FIG. 1, and a step portion 10 is provided at a lower portion thereof, and a peripheral portion of an upper portion is provided with an oblique tip. The part 11 has a square columnar shape or a cylindrical shape.
【００１２】 上記羽口れんが２の上側部１２の稼働面側からブロックの全長に対して１／３ ないし１／２の範囲は、ポ−ラスプラグ１と同一の速度で溶損するアルミナ質や ムライト質の溶損しやすい低耐食性材質として、内側のポ−ラスプラグ１の溶損 と均一状となるようにしている。そして、その下側部１３の非稼働面側は、高耐 食性、耐スポ−リング性のジルコン質やハイアルミナ質の高耐食性材質で形成し 、所定の耐久性を保持できるようにしている。A range of 1/3 to 1/2 of the entire length of the block from the working surface side of the upper portion 12 of the tuyere brick 2 is an alumina or mullite material that melts at the same speed as the porous plug 1. As a low-corrosion resistant material that easily melts, it is made uniform with the melting loss of the inner porous plug 1. The non-operating surface side of the lower side portion 13 is formed of a high corrosion resistance material such as zircon material or high alumina material having high corrosion resistance and spalling resistance so that predetermined durability can be maintained.
【００１３】 上記羽口れんが２の上側部１２をブロックの高さに対して１／３〜１／２の範 囲としているのは、１／３以下では余り効果がなく、また１／２以上ではガス吹 込み攪拌装置の溶損部分が寿命判断部分を越えることが生じることとなって危険 であることによる。また、上記上側部１２の低耐食性材質の溶損率としては、下 側部１３の高耐食性材質の溶損率に対して１３０〜２００位が好ましい。The reason that the upper part 12 of the tuyere brick 2 is set within the range of 1/3 to 1/2 of the height of the block is that if it is 1/3 or less, there is little effect, and if it is 1/2 or more. Then, it is dangerous because the melted part of the gas blowing stirrer may exceed the life judgment part. Further, the melt corrosion rate of the low corrosion resistant material of the upper portion 12 is preferably 130 to 200 with respect to the melt corrosion rate of the high corrosion resistant material of the lower portion 13.
【００１４】[0014]
しかして、上記した実施例に係るガス吹込み攪拌装置を８０トン容量の取鍋に 装着してガス吹き込みを行った。その結果、連続１５回のガス吹き込みを完遂す ることができた。 Then, the gas blowing stirrer according to the above-mentioned example was attached to a ladle having a capacity of 80 tons to perform gas blowing. As a result, it was possible to complete continuous gas injection 15 times.
【００１５】 使用後のポ−ラスプラグ１と羽口れんが２の溶損状態は、図２に示すように均 一状に平準化されたもので、またポ−ラスプラグ１の上面は溶鋼が溜まりにくい 状態となって、本考案の成果を裏付けるものであった。なお、図３の従来のガス 吹込み攪拌装置では、ガス吹き込みができない回数が２回ほど生じるものであり 、本考案ではこれらのトラブルを解消することができたものである。The melted state of the porous plug 1 and the tuyere brick 2 after use is one that is leveled uniformly as shown in FIG. 2, and molten steel is hard to accumulate on the upper surface of the porous plug 1. In this state, the result of the present invention was confirmed. It should be noted that in the conventional gas blowing agitator shown in FIG. 3, the number of times the gas cannot be blown occurs about twice, and the present invention can solve these problems.
【００１６】 上記実施例では、羽口れんがに１個のポ−ラスプラグを装着したものを説明し たが、複数個のポ−ラスプラグを一体的に装着するものについても適用できるも のである。In the above-described embodiment, the tuyere brick is equipped with one porous plug, but the invention is also applicable to a tuyere brick with a plurality of porous plugs integrally mounted.
【００１７】[0017]
以上のように本考案にあっては、ポ−ラスプラグを羽口れんがに一体化したガ ス吹込み攪拌装置を、その稼働面の溶損量を平準化できて、安定して連続ガス吹 き込みが行えるとともに、ガス吹込み攪拌装置をできるだけ長寿命にすることが できる。 As described above, according to the present invention, the gas blowing stirrer in which the porous plug is integrated with the tuyere brick is capable of leveling the amount of melt damage on the operating surface and stably blowing gas continuously. In addition to being able to perform the charging, the life of the gas blowing stirrer can be made as long as possible.
【図面の簡単な説明】[Brief description of drawings]
【図１】本考案の一実施例の側断面図、FIG. 1 is a side sectional view of an embodiment of the present invention,
【図２】同上の溶損状態の説明用断面図、FIG. 2 is a cross-sectional view for explaining the melting damage state,
【図３】従来例の側断面図、FIG. 3 is a side sectional view of a conventional example,
【図４】同上の溶損状態の説明用断面図。FIG. 4 is a cross-sectional view for explaining the above-described melting damage state.
１…ポ−ラスプラグ ２…羽口れんが ３…ガ
ス吹込み攪拌装置 １２…上側部 １３…下側部DESCRIPTION OF SYMBOLS 1 ... Porous plug 2 ... Tuyere brick 3 ... Gas injection stirring device 12 ... Upper part 13 ... Lower part
Claims (1)
装着した溶融金属ガス吹込み攪拌装置において、 上記羽口れんがの稼働面側から全長の１／３ないし１／
２の範囲を溶損しやすい低耐食性材質とするとともに、
その非稼働面側は溶損しにくい高耐食性材質で形成した
ことを特徴とする溶融金属ガス吹込み攪拌装置。1. A molten metal gas blowing stirrer in which a porous plug is integrally attached to a tuyere brick, wherein 1/3 to 1/1 of the entire length from the working surface side of the tuyere brick.
The range of 2 is made of low corrosion resistant material that easily melts,
The non-operating surface side is formed of a highly corrosion-resistant material that is unlikely to melt and melt, and a molten metal gas blowing stirrer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221191U JPH0554532U (en) | 1991-12-24 | 1991-12-24 | Molten metal gas injection stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11221191U JPH0554532U (en) | 1991-12-24 | 1991-12-24 | Molten metal gas injection stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0554532U true JPH0554532U (en) | 1993-07-20 |
Family
ID=14581039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11221191U Pending JPH0554532U (en) | 1991-12-24 | 1991-12-24 | Molten metal gas injection stirrer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0554532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020164953A (en) * | 2019-03-29 | 2020-10-08 | 東京窯業株式会社 | Gas blow plug |
| JP2023092079A (en) * | 2021-12-21 | 2023-07-03 | 品川リフラクトリーズ株式会社 | Tuyere member and method of installing tuyere in bottom of molten metal smelting vessel |
-
1991
- 1991-12-24 JP JP11221191U patent/JPH0554532U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020164953A (en) * | 2019-03-29 | 2020-10-08 | 東京窯業株式会社 | Gas blow plug |
| JP2023092079A (en) * | 2021-12-21 | 2023-07-03 | 品川リフラクトリーズ株式会社 | Tuyere member and method of installing tuyere in bottom of molten metal smelting vessel |
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