JPS62224473A - Preheating apparatus for refractory-made rod-like body for ladle - Google Patents
Preheating apparatus for refractory-made rod-like body for ladleInfo
- Publication number
- JPS62224473A JPS62224473A JP6662886A JP6662886A JPS62224473A JP S62224473 A JPS62224473 A JP S62224473A JP 6662886 A JP6662886 A JP 6662886A JP 6662886 A JP6662886 A JP 6662886A JP S62224473 A JPS62224473 A JP S62224473A
- Authority
- JP
- Japan
- Prior art keywords
- preheating
- rod
- ladle
- heat
- refractory
- 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
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000007654 immersion Methods 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
- B22D41/01—Heating means
- B22D41/015—Heating means with external heating, i.e. the heat source not being a part of the ladle
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、取鍋用耐火物製棒状体例えば昇降式ノズル
ストッパや浸漬ノズルなどを予熱するのに利用される取
鍋用耐火物製棒状体の予熱装置に関するものである。Detailed Description of the Invention (Field of Industrial Application) This invention relates to a refractory rod-shaped ladle, which is used for preheating a refractory rod-shaped ladle, for example, an elevating nozzle stopper, an immersion nozzle, etc. The present invention relates to a body preheating device.
（従来の技術）
通常の場合、転炉や電気炉などで溶製された溶鋼はいっ
たん取鍋内に移され、必要に応じて取鍋内で精錬を行う
（例えば、ＬＦ法による）工程を経たのち、造塊鋳型や
連続鋳造鋳型内に溶鋼を流し込むようにしている。(Prior art) In normal cases, molten steel melted in a converter, electric furnace, etc. is once transferred to a ladle, and if necessary, it undergoes a refining process (for example, by the LF method) in the ladle. After that, the molten steel is poured into an ingot mold or continuous casting mold.
このような作業において使用される取鍋には、取鍋底部
に設けたノズルを当該取鍋の内部から昇降式で開閉する
ノズルストッパや、Ｍ続鋳造において溶鋼の供給を行う
浸漬ノズルなどが取り付けられている。The ladle used in such work is equipped with a nozzle stopper that opens and closes a nozzle installed at the bottom of the ladle by raising and lowering it from inside the ladle, and an immersion nozzle that supplies molten steel in M continuous casting. It is being
そこで、このようなノズルスト７パや浸漬ノズルを備え
た取鍋（浸漬ノズルを備えたタンディツシュも含む、）
を使用するに際して、前記ノズルには、ノズルストッパ
や浸漬ノズルが急加熱によって割れたり、浸漬ノズル内
で溶鋼が凝固してノズル詰まりを生じたりすることがあ
る。Therefore, such nozzle stops and ladles equipped with immersion nozzles (including tundishes equipped with immersion nozzles)
When using the nozzle, the nozzle stopper or immersion nozzle may crack due to rapid heating, or the molten steel may solidify within the immersion nozzle, causing nozzle clogging.
そのため、従来の場合には、前記ノズルストッパや浸漬
ノズルを予熱した状態で使用しており、予熱に際しては
、断熱筒体の壁部に、当該断熱筒体の半径方向に例えば
２木の予熱バーナーを１８０°の間隔で対向させて設置
した予熱装置を使用していた。Therefore, in the conventional case, the nozzle stopper and the immersion nozzle are used in a preheated state, and when preheating, for example, two wooden preheating burners are placed on the wall of the heat insulating cylinder in the radial direction of the heat insulating cylinder. A preheating device was used in which the two were placed opposite each other at an interval of 180°.
（発明が解決しようとする問題点）
上記のように、従来の予熱装置では、断熱筒体の半径方
向に例えば２本の予熱バーナーを対向させて設置した構
造をなすものであったため、予熱装置の断熱筒体内に前
記ノズルストッパや浸漬ノズルを装入して予熱を開始し
た場合に、予熱バーナーから放出される熱源が前記ノズ
ルストッパや浸漬ノズルに直接当たることとなり、ノズ
ルストッパや浸漬ノズルが局部的に加熱されるので、均
一に加熱することが難しいという問題点を有していた。(Problems to be Solved by the Invention) As mentioned above, the conventional preheating device has a structure in which, for example, two preheating burners are installed facing each other in the radial direction of the heat insulating cylinder. When the nozzle stopper or immersion nozzle is inserted into the heat insulating cylinder and preheating is started, the heat source emitted from the preheating burner will directly hit the nozzle stopper or immersion nozzle, causing the nozzle stopper or immersion nozzle to locally The problem is that it is difficult to heat uniformly because the heat is heated uniformly.
（発明の目的）
この発明は、上述した従来の問題点に着目してなされた
もので、ノズルストッパや浸漬ノズルなどの取鍋用（こ
こではタンディツシュ用も含む、）＃大物製棒状体を均
一に加熱することが可能である取鍋用耐火物製棒状体の
予熱装置を提供することを目的としている。(Purpose of the Invention) This invention was made by paying attention to the above-mentioned conventional problems. It is an object of the present invention to provide a preheating device for a refractory rod-shaped body for a ladle, which can be heated to
［発明の構成］
（問題点を解決するための手段）
この発明は、取鍋用耐火物製棒状体（ただし、この発明
ではタンディツシュ用耐火物製棒状体をも含めるものと
する。）を予熱するのに使用する予熱装置に関するもの
であって、断熱筒体の壁部に、当該断熱筒体の半径方向
に対して円周方向側に角度をもたせて予熱バーナーを設
置し、前記予熱バーナーから放出される熱源が前記断熱
筒体内に設置した取鍋用耐火物製棒状体のまわりで循環
流となる向きに前記予熱バーナーを位置決めした構成と
したことを特徴としている。[Structure of the Invention] (Means for Solving Problems) This invention provides a method for preheating a refractory rod-shaped body for a ladle (however, this invention also includes a refractory rod-shaped body for a tundish). This relates to a preheating device used for The present invention is characterized in that the preheating burner is positioned in such a direction that the emitted heat source circulates around a refractory rod for a ladle installed in the heat insulating cylinder.
（実施例）
第１図および第２図はこの発明の一実施例を示すもので
、図において仮想線で示す取鍋（タンディツシュを含む
、）用耐火物製棒状体１の予熱装置２は、半割円筒形状
の断熱材３ａの外側に金属外殻４ａを設けた半割断熱筒
体５ａと、同じく半割円筒形状の断熱材３ｂの外側に金
属外殻４ｂを設けた半割断熱筒体５ｂとを蝶番６．６で
連結し、両半割断熱筒体５ａ、５ｂを前記蝶番６，６を
軸にして開いたときに、前記耐火物製棒状体１の通過を
可能にし、閉じたときに円形の断熱筒体５に形成して前
記耐火物製棒状体１を取り囲むことができるようにして
いる。(Embodiment) FIGS. 1 and 2 show an embodiment of the present invention, and a preheating device 2 for a refractory rod-shaped body 1 for a ladle (including a tundish) is shown by a phantom line in the figure. A half-insulated insulating cylinder 5a has a metal shell 4a on the outside of a half-cylindrical heat insulator 3a, and a half-insulated cylinder 5a has a metal shell 4b on the outside of a half-cylindrical heat insulator 3b. 5b are connected by a hinge 6.6, and when the two half-insulated cylinders 5a, 5b are opened around the hinges 6, 6, the refractory rod-shaped body 1 can pass through, and when closed. Sometimes, it is formed into a circular heat insulating cylindrical body 5 so as to be able to surround the refractory rod-shaped body 1 .
そして、断熱筒体５の外壁面には取手７を設けておくと
ともに、壁部には二つの予熱バーナー取付孔８ａ、８ｂ
を形成している。この実施例では二つの予熱バーナー９
ａ、９ｂを設置する場合を示しているので、各々の半割
断熱筒体５ａ、５ｂに予熱バーナー取付孔８ａ、８ｂを
形成し、半割断熱筒体５ａ、５ｂを閉じた状態の断熱筒
体５において相対向する位置に予熱バーナー９ａ、９ｂ
を設置できるようにしている。この場合、前記断熱筒体
５の半径方向に対して円周方向側に角度をもたせた状態
で予熱バーナー９ａ、９ｂを設置することができるよう
に、予熱バーナー取付孔８ａ、８ｂも半径方向に対して
角度をもたせて形成してあり、この予熱バーナー取付孔
８ａ、８ｂに設置した予熱バーナー９ａ、９ｂから放出
される熱源１０．１０が耐火物製棒状体１のまわりで循
環する（第２図の例では反時計方向に循環する）ように
前記予熱バーナー９ａ、９ｂを位置決めしている。A handle 7 is provided on the outer wall surface of the heat insulating cylinder 5, and two preheating burner mounting holes 8a, 8b are provided in the wall.
is formed. In this embodiment two preheating burners 9
a, 9b are installed, the preheating burner mounting holes 8a, 8b are formed in each of the half-insulated cylinders 5a, 5b, and the insulation cylinders are installed with the half-insulated cylinders 5a, 5b closed. Preheating burners 9a and 9b are provided at opposing positions in the body 5.
It is possible to install . In this case, the preheating burner mounting holes 8a and 8b are also radially arranged so that the preheating burners 9a and 9b can be installed at an angle in the circumferential direction with respect to the radial direction of the heat insulating cylinder 5. The heat source 10.10 emitted from the preheating burners 9a, 9b installed in the preheating burner mounting holes 8a, 8b circulates around the refractory rod-shaped body 1 (second In the illustrated example, the preheating burners 9a and 9b are positioned so that they circulate counterclockwise.
このような構造の予熱装置２を使用して耐火物製棒状体
１を予熱するに際しては、取鍋やタンディツシュの底部
に予熱装置２を移動させ、半割断熱筒体５ａ、５ｂを開
いた状態にしてこの開口部分から耐火物製棒状体（すな
わち、ここでは浸漬ノズル）１を通したのち、半割断熱
筒体５ａ。When preheating the refractory rod-shaped body 1 using the preheating device 2 having such a structure, move the preheating device 2 to the bottom of a ladle or tundish, and open the half-insulated cylinders 5a and 5b. After passing the refractory rod-shaped body (i.e., the immersion nozzle here) 1 through this opening, the halved heat-insulating cylinder 5a is inserted.
５ｂを閉じることによって、断熱筒体５で浸漬ノズル１
を取り囲んだ状態とする０次いで、予熱バーナー９Ａ、
９ｂより熱源ｉｏ、ｉｏを放出させる、この状態では、
前記熱源１０．１０は浸漬ノズル１のまわりで循環流と
なっているため、浸漬ノズル１は局部加熱されずに万遍
なく均一に加熱されることとなる。By closing 5b, the immersion nozzle 1 is
Next, the preheating burner 9A,
In this state, the heat sources io and io are released from 9b,
Since the heat source 10.10 is in a circulating flow around the immersion nozzle 1, the immersion nozzle 1 is heated evenly and evenly without being locally heated.
なお、上記の実施例では、二つの予熱バーナー９ａ、９
ｂが半径方向に対して同じ角度だけ円周方向側にずらせ
た場合を示しているが、必要に応じて異なる角度として
も良い。また、二つの予熱バーナー９ａ、９ｂは同じ高
さの位置に設置しているが、必要に応じて高さを異なら
せてもよい。In addition, in the above embodiment, two preheating burners 9a, 9
Although the case where b is shifted in the circumferential direction by the same angle with respect to the radial direction is shown, it may be a different angle as necessary. Moreover, although the two preheating burners 9a and 9b are installed at the same height position, the heights may be made to differ as necessary.
そしてさらには二つの予熱バーナー９ａ、９ｂの向きが
水平でないようにすることも必要に応じてなしうる。Furthermore, the orientation of the two preheating burners 9a and 9b may be made non-horizontal, if necessary.
［発明の効果］
以上説明してきたように、この発明によれば、取ｔ！４
（タンディツシュを含む、）用耐火物製棒状体を予熱す
るのに使用する予熱装置において、断熱筒体の壁部に、
当該断熱筒体の半径方向に対して円周方向側に角度をも
たせて予熱バーナーを設置し、前記予熱バーナーから放
出される熱源が前記断熱筒体内に設置した取鍋用耐火物
製棒状体のまわりで循環流となる向きに前記予熱バーナ
ーを位置決めした構成としたから、ノズルストッパや浸
漬ノズルなどの取鍋用（タンディツシュ用）＃大物製棒
状体を均一に加熱して理想的な予熱を行うことが可能で
あり、従来のように局部的加熱や不均一加熱を生じるこ
とがないという非常に優れた効果が、もたらされる。[Effects of the Invention] As explained above, according to the present invention, it is possible to obtain t! 4
In a preheating device used to preheat a refractory rod (including tanditsh), on the wall of the heat insulating cylinder,
A preheating burner is installed at an angle in the circumferential direction with respect to the radial direction of the heat insulating cylinder, and the heat source emitted from the preheating burner is connected to the refractory rod-shaped body for ladle installed in the heat insulating cylinder. Since the preheating burner is positioned in a direction that creates a circulating flow around it, ideal preheating can be achieved by uniformly heating large rod-shaped objects for ladle use (for tundishes) such as nozzle stoppers and immersion nozzles. This provides an extremely excellent effect in that localized heating or non-uniform heating does not occur as in the conventional method.
第１図および第２図はこの発明の一実施例による取鍋用
耐火物製棒状体の予熱装置を示す各々全体斜視図および
予熱バーナー設置部分の水平断面説明図である。
１・・・耐火製棒状体、
２・・・取鍋用耐火物製棒状体の予熱装置、３ａ、３ｂ
・・・断熱材、
４ａ 、４ｂ・・・金属外殻、
５・・・断熱筒体。
５ａ、５ｂ・・・半割断熱筒体、
６・・・蝶番。
８ａ、８ｂ・・・予熱バーナー取付孔、９ａ、９ｂ・・
・予熱バーナー、
１０・・・熱源。1 and 2 are an overall perspective view and a horizontal cross-sectional explanatory view of a preheating burner installation portion, respectively, showing a preheating device for a refractory rod for a ladle according to an embodiment of the present invention. 1... Refractory rod-shaped body, 2... Preheating device for refractory rod-shaped body for ladle, 3a, 3b
...Insulating material, 4a, 4b...Metal shell, 5...Insulating cylinder. 5a, 5b...Half-split heat insulating cylinder, 6...Hinge. 8a, 8b... Preheating burner mounting hole, 9a, 9b...
・Preheating burner, 10...Heat source.
Claims (2)
体を予熱するのに使用する予熱装置であって、断熱筒体
の壁部に、当該断熱筒体の半径方向に対して円周方向側
に角度をもたせて予熱バーナーを設置し、前記予熱バー
ナーから放出される熱源が前記断熱筒体内に設置した取
鍋用耐火物製棒状体のまわりで循環流となる向きに前記
予熱バーナーを位置決めしたことを特徴とする取鍋用耐
火物製棒状体の予熱装置。(1) A preheating device used to preheat a refractory rod-shaped body for a ladle (including a tundish), which is provided on the wall of a heat-insulating cylinder in a circular direction in the radial direction of the heat-insulating cylinder. A preheating burner is installed at an angle in the circumferential direction, and the preheating burner is oriented so that the heat source emitted from the preheating burner circulates around the refractory rod-shaped body for a ladle installed in the heat insulating cylinder. A preheating device for a rod-shaped refractory body for a ladle, characterized in that:
対して円周方向側に略同一の角度をもたせて各々断熱筒
体の壁部に設置した特許請求の範囲第（１）項記載の取
鍋用耐火物製棒状体の予熱装置。(2) Claim (1) wherein there is a plurality of preheating burners, each of which is installed on the wall of the heat insulating cylinder at substantially the same angle in the circumferential direction with respect to the radial direction of the heat insulating cylinder. Preheating device for the refractory rod-shaped body for ladle described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6662886A JPS62224473A (en) | 1986-03-25 | 1986-03-25 | Preheating apparatus for refractory-made rod-like body for ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6662886A JPS62224473A (en) | 1986-03-25 | 1986-03-25 | Preheating apparatus for refractory-made rod-like body for ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62224473A true JPS62224473A (en) | 1987-10-02 |
Family
ID=13321346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6662886A Pending JPS62224473A (en) | 1986-03-25 | 1986-03-25 | Preheating apparatus for refractory-made rod-like body for ladle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62224473A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101024588B1 (en) | 2008-09-25 | 2011-03-31 | 현대제철 주식회사 | Pre-heating device for submerged nozzle |
| JP2016022516A (en) * | 2014-07-23 | 2016-02-08 | 明智セラミックス株式会社 | Preheater of continuous casting nozzle |
| EP2380680A4 (en) * | 2008-12-26 | 2017-04-26 | Nippon Steel & Sumitomo Metal Corporation | Continuous casting method and nozzle heating device |
| CN107127326A (en) * | 2016-02-29 | 2017-09-05 | 鞍钢股份有限公司 | A kind of spiral burner ladle baking facilities and baking method |
| CN107790702A (en) * | 2016-09-06 | 2018-03-13 | 鞍钢股份有限公司 | The closed apparatus for baking of bag soaking water gap and method in one kind |
-
1986
- 1986-03-25 JP JP6662886A patent/JPS62224473A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101024588B1 (en) | 2008-09-25 | 2011-03-31 | 현대제철 주식회사 | Pre-heating device for submerged nozzle |
| EP2380680A4 (en) * | 2008-12-26 | 2017-04-26 | Nippon Steel & Sumitomo Metal Corporation | Continuous casting method and nozzle heating device |
| JP2016022516A (en) * | 2014-07-23 | 2016-02-08 | 明智セラミックス株式会社 | Preheater of continuous casting nozzle |
| CN107127326A (en) * | 2016-02-29 | 2017-09-05 | 鞍钢股份有限公司 | A kind of spiral burner ladle baking facilities and baking method |
| CN107790702A (en) * | 2016-09-06 | 2018-03-13 | 鞍钢股份有限公司 | The closed apparatus for baking of bag soaking water gap and method in one kind |
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