JPH0712898U - Steel tapping sleeve brick for steelmaking furnace - Google Patents
Steel tapping sleeve brick for steelmaking furnaceInfo
- Publication number
- JPH0712898U JPH0712898U JP4450293U JP4450293U JPH0712898U JP H0712898 U JPH0712898 U JP H0712898U JP 4450293 U JP4450293 U JP 4450293U JP 4450293 U JP4450293 U JP 4450293U JP H0712898 U JPH0712898 U JP H0712898U
- Authority
- JP
- Japan
- Prior art keywords
- sleeve brick
- brick
- sleeve
- molten steel
- steelmaking furnace
- 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.)
- Withdrawn
Links
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
(57)【要約】
【目的】 製鋼炉用出鋼孔スリーブ煉瓦において、溶鋼
流入側の寿命をのばし出鋼孔スリーブ煉瓦全体の寿命延
長を図るスリーブ煉瓦構造を提供することを目的とす
る。
【構成】 一体成形体のスリーブ煉瓦で、溶鋼流出側に
比べて損耗が大きくなる溶鋼流入側のスリーブ煉瓦肉厚
をテーパ状、あるいは段付き状の形状により厚肉化する
ことを特徴とする。
(57) [Abstract] [Purpose] An object of the present invention is to provide a sleeve brick structure for a steelmaking furnace, which extends the life on the inflow side of molten steel and extends the life of the entire sleeve brick for tapping holes. A sleeve brick of an integrally molded body is characterized in that the thickness of the sleeve brick on the molten steel inflow side, which is more worn than on the molten steel outflow side, is increased by a tapered or stepped shape.
Description
【０００１】[0001]
この考案は、金属材料の溶解、溶融金属の精錬等に使用される製鋼炉の出鋼孔 スリーブ煉瓦に関する。 The present invention relates to a tap hole sleeve brick of a steelmaking furnace used for melting metal materials, refining molten metal, and the like.
【０００２】[0002]
金属材料の溶解、溶融金属の精錬等に使用される製鋼炉の出鋼方式として最近 は偏心炉底出鋼方式が生産コスト向上などのメリットを追求してその主流になり つつある。偏心炉底出鋼方式の出鋼孔を形成する従来の出鋼孔スリーブ煉瓦は、 円筒状の耐火煉瓦を積層した構造で構成されているが、このスリーブ煉瓦は使用 に伴い溶損するため交換が必要になっているのが現状である。 Recently, the eccentric furnace bottom tapping method is becoming the main stream in pursuit of advantages such as improved production costs as a tapping method for steelmaking furnaces used for melting metal materials and refining molten metal. The conventional taphole sleeve bricks for forming tapholes in the eccentric bottom tapped method are constructed by stacking cylindrical refractory bricks.However, these sleeve bricks are melted and damaged during use, so they cannot be replaced. At present, it is necessary.
【０００３】 この交換を要する期間寿命を長くするため従来より改善がなされているが、積 層構造により生じる煉瓦間目地部の極所的溶損を防止し、寿命・延長を図る方法 として、例えば、特開平１−３０５２９１号公報で接合目地を有しない一体成形 体のスリーブ煉瓦構造が開示されている。[0003] Although improvements have been made in the past in order to prolong the service life of the period that requires replacement, as a method for preventing the localized melt damage of joints between bricks caused by the laminated structure and extending the service life, for example, Japanese Laid-Open Patent Publication No. 1-305291 discloses an integrally molded sleeve brick structure having no joints.
【０００４】 これにより接合目的部の極所的溶損は防止することが可能となったり、スリー ブ煉瓦の交換頻度は少なくなり交換を要する期間・寿命の延長の面で改善された 。As a result, it is possible to prevent localized melting and erosion of the joint target portion, and the frequency of replacement of the three bricks is reduced, which is improved in terms of the period and life required for replacement.
【０００５】[0005]
ところが、実炉での出鋼孔スリーブ煉瓦の損耗状況は、煉瓦の損耗は目地部の 損耗以外に、高さ方向に均一損耗はせず、すなわち熱負荷の高い溶鋼流入側が流 出側より特に損耗量が大きくなることが操業にて経験確認されている。 However, the wear condition of the taphole sleeve brick in the actual furnace shows that the brick wear is not uniform wear in the height direction other than the joint wear, that is, the molten steel inflow side with a high heat load is more than the outflow side. Experience has confirmed that the amount of wear increases.
【０００６】 一方、出鋼孔スリーブ煉瓦の寿命は、スリーブ煉瓦自体の残厚により決定され るため、一体成形体スリーブ煉瓦において溶鋼流出側の残厚が充分な場合におい ても、流入側の損耗度合に律速され交換が必要となり、不経済な使用方法となっ ている。On the other hand, since the life of the tap hole sleeve brick is determined by the residual thickness of the sleeve brick itself, even if the residual thickness of the integrally molded sleeve brick on the molten steel outlet side is sufficient, the wear on the inlet side is It is rate-controlled and requires replacement, which is an uneconomical method of use.
【０００７】 そこで、本考案では、損耗時の溶鋼流入側と流出側のスリーブ煉瓦残厚が同程 度となり出鋼孔スリーブ煉瓦全体の経済的な交換を可能とするスリーブ煉瓦構造 を提供することを目的とする。In view of the above, the present invention provides a sleeve brick structure in which the residual thickness of the sleeve bricks on the inflow side and the outflow side of the molten steel at the time of wear is about the same, and it is possible to economically replace the entire tap bricks with tapped holes. With the goal.
【０００８】[0008]
上記課題を解決するために、本考案における製鋼炉用出鋼孔スリーブ煉瓦は、 一体成形体のスリーブ煉瓦で、溶鋼流出側に比べて損耗が大きくなる溶鋼流入側 のスリーブ煉瓦肉厚をテーパ状、あるいは段付き状等により厚肉化することを特 徴とするものである。 In order to solve the above-mentioned problems, the taphole sleeve brick for a steelmaking furnace in the present invention is a sleeve brick of an integrally formed body, and the thickness of the sleeve brick on the molten steel inflow side, which causes greater wear than the molten steel outflow side, is tapered. Alternatively, the feature is that the wall thickness is increased by a stepped shape or the like.
【０００９】[0009]
損耗が大きくなる溶鋼流入側のスリーブ煉瓦肉厚を厚肉化する構造とすること により、溶鋼流入側のスリーブ煉瓦残厚が交換を要するまでの期間がのび、交換 時の煉瓦の残厚をスリーブ煉瓦全体で均一化できることになる。 By increasing the thickness of the sleeve bricks on the molten steel inflow side, which causes large wear, the residual thickness of the sleeve bricks on the molten steel inflow side is extended until the replacement is required, and the remaining brick thickness at the time of replacement is sleeved. The bricks can be made uniform.
【００１０】[0010]
本考案による実施例を例図によって説明する。 図１、および図２は、本考案による出鋼孔スリーブ煉瓦の第１、第２実施例の 縦断面図である。出鋼孔部の耐火物は、一般にスリーブ煉瓦１、周辺の定形煉瓦 ２、およびその間を埋める不定形材３から構成される。スリーブ煉瓦の材質は耐 溶鋼性などを加味して決定されるが、カーボン煉瓦やＡｌ2Ｏ3−ＳｉＣ−Ｃ煉瓦 が採用されている。An embodiment according to the present invention will be described with reference to an example diagram. 1 and 2 are vertical sectional views of first and second embodiments of a tapped hole sleeve brick according to the present invention. The refractory in the tapped hole portion is generally composed of a sleeve brick 1, a peripheral fixed brick 2, and an amorphous material 3 filling the space between them. The material of the sleeve bricks is determined in consideration of such anti molten steel resistance, carbon brick and Al 2 O 3 -SiC-C brick has been adopted.
【００１１】 出鋼時、溶鋼は例図の上部から下部へ出鋼孔４を通って排出されるが、損耗は 、スリーブ煉瓦１の下部より上部の方が早く進むこととなり、スリーブ煉瓦１の 損耗ラインは５のようになる。At the time of tapping, molten steel is discharged from the upper part of the example drawing to the lower part through the tapping hole 4, but the wear progresses faster in the upper part of the sleeve brick 1 than in the lower part, and The wear line looks like 5.
【００１２】 本考案では、上部のスリーブ煉瓦厚を下部に比べ厚肉化しているが、その実施 例として図１では、スリーブ煉瓦１の上部をテーパ状に厚肉化したもの、また、 図２の第２実施例では、同様に段付き状に上部を厚肉化した場合のものを示して いる。In the present invention, the thickness of the sleeve brick in the upper portion is made thicker than that in the lower portion. As an example thereof, in FIG. 1, the upper portion of the sleeve brick 1 is made thicker in a tapered shape. In the second embodiment, the case where the upper portion is similarly thickened in a stepped shape is shown.
【００１３】 この時、スリーブ煉瓦１の損耗による残厚はスリーブ煉瓦１の上部、下部にお いて同レベルとなり交換することとなり、スリーブ煉瓦全体を有効使用できるこ ととなる。At this time, the remaining thickness due to the wear of the sleeve brick 1 becomes the same level in the upper and lower parts of the sleeve brick 1 and the sleeve brick 1 is replaced, so that the entire sleeve brick 1 can be effectively used.
【００１４】[0014]
以上説明したように、本考案による製鋼炉用出鋼孔スリーブ煉瓦においては、 寿命を支配している溶鋼流出側スリーブ煉瓦の残在厚保持時間の延長が図れ、そ の結果、スリーブ煉瓦全体の耐用回数を最適な形で経済的に増やすことが可能と なり、スリーブ煉瓦原単位の低減、交換頻度の低減等によるコストの削減、また 、生産性の向上等に寄与するものである。 As described above, in the steel tapping sleeve sleeve brick according to the present invention, the remaining thickness retention time of the molten steel outflow side sleeve brick that governs the life can be extended, and as a result, the entire sleeve brick It is possible to economically increase the number of uses in an optimal manner, which contributes to cost reduction by reducing the basic unit of sleeve bricks, reducing the frequency of replacement, and contributing to improved productivity.
【図１】本考案による出鋼孔スリーブ煉瓦の実施例断面
図である。FIG. 1 is a sectional view of an embodiment of a tapped hole sleeve brick according to the present invention.
【図２】本考案による出鋼孔スリーブ煉瓦の他の実施例
断面図である。FIG. 2 is a sectional view of another embodiment of a tapped hole sleeve brick according to the present invention.
１：スリーブ煉瓦 ２：定形煉瓦 ３：不定形材 ４：出鋼孔 ５：スリーブ煉瓦損耗ライン 1: Sleeve brick 2: Regular brick 3: Unshaped material 4: Steel tap hole 5: Sleeve brick wear line
Claims (1)
側より流入側のスリーブ煉瓦肉厚を厚くすることを特徴
とする製鋼炉用出鋼孔スリーブ煉瓦。1. A sleeve brick for a steelmaking furnace, wherein the sleeve brick is an integrally molded body, and the wall thickness of the sleeve brick on the inflow side is made thicker than that on the outflow side of the molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4450293U JPH0712898U (en) | 1993-07-23 | 1993-07-23 | Steel tapping sleeve brick for steelmaking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4450293U JPH0712898U (en) | 1993-07-23 | 1993-07-23 | Steel tapping sleeve brick for steelmaking furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0712898U true JPH0712898U (en) | 1995-03-03 |
Family
ID=12693333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4450293U Withdrawn JPH0712898U (en) | 1993-07-23 | 1993-07-23 | Steel tapping sleeve brick for steelmaking furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121770A (en) * | 2007-11-16 | 2009-06-04 | Kubota Corp | Melting furnace |
-
1993
- 1993-07-23 JP JP4450293U patent/JPH0712898U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121770A (en) * | 2007-11-16 | 2009-06-04 | Kubota Corp | Melting furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19971106 |