JPH02428Y2 - - Google Patents
Info
- Publication number
- JPH02428Y2 JPH02428Y2 JP1987099336U JP9933687U JPH02428Y2 JP H02428 Y2 JPH02428 Y2 JP H02428Y2 JP 1987099336 U JP1987099336 U JP 1987099336U JP 9933687 U JP9933687 U JP 9933687U JP H02428 Y2 JPH02428 Y2 JP H02428Y2
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- brick
- bricks
- integral
- sleeve brick
- 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.)
- Expired
Links
- 239000011449 brick Substances 0.000 claims description 84
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、転炉の出鋼口部に使用するスリーブ
煉瓦の脱落(または、抜け出し)防止構造に関す
る。[Detailed Description of the Invention] Industrial Application Field The present invention relates to a structure for preventing sleeve bricks from falling off (or slipping out) used at the tapping port of a converter.
従来の技術
従来、転炉出鋼口用スリーブ煉瓦は、第6図に
示すようにスリーブ煉瓦1の端部に凹凸ダボを設
けたものを複数個継ぎ合せ、その外周をモルタル
目地2を介して円周方向を1〜6分割した外巻き
煉瓦3を数段配設して一体化し、外巻き煉瓦3の
先端部に切欠けを設けて該切欠け部をフランジ金
物4で支えることによつて落下防止を図つてい
た。Conventional technology Conventionally, sleeve bricks for converter taps are made by piecing together a plurality of sleeve bricks 1 with uneven dowels at the ends, as shown in FIG. By arranging several stages of outer bricks 3 divided into 1 to 6 parts in the circumferential direction and integrating them, providing a notch at the tip of the outer brick 3 and supporting the notch with a flange metal fitting 4. I was trying to prevent it from falling.
考案が解決しようとする問題点
しかしながら、周知のように転炉出鋼口用スリ
ーブ煉瓦は、間歇的に溶融スラグ、および溶鋼流
に接触して苛酷な条件にさらされるため、ダボ割
れ、スリーブ煉瓦同士の連結力不足、あるいはス
リーブ煉瓦と外巻き煉瓦との連結力不足等から初
期の溶損時、および転炉傾動時に未溶損部分まで
連鎖的に脱落を誘発する結果となり、出鋼口の寿
命が短命となつて頻繁な補修を余儀なくされてい
た。また、施工時に於けるセツトも困難であつ
た。Problems to be solved by the invention However, as is well known, sleeve bricks for converter taps are exposed to harsh conditions as they come into contact with molten slag and molten steel flow intermittently, resulting in dowel cracks and sleeve bricks. Insufficient connection strength between sleeve bricks or between sleeve bricks and outer wrapping bricks can lead to a chain reaction of falling of the unmelted parts during initial melting and when the converter is tilted, leading to a chain reaction at the tap hole. Their lifespans were short and frequent repairs were required. Also, it was difficult to set it up during construction.
問題点を解決するための手段
本考案者等は、このような諸問題を解決するた
めに種々検討、実験を行なつた結果、本考案防止
構造の開発に成功したものであり、本考案の技術
的構成は、前記実用新案登録請求の範囲に明記し
たように、複数個連結したスリーブ煉瓦の外周に
一体物煉瓦を配設して2層構成とし、一体化構造
とすることによつて脱落防止が図れるように構成
した転炉出鋼口用2層構成スリーブ煉瓦にある。Means to Solve the Problems The inventors of the present invention have conducted various studies and experiments in order to solve these problems, and as a result, they have succeeded in developing the preventive structure of the present invention. As specified in the claims for the above-mentioned utility model registration, the technical configuration is that an integral brick is arranged around the outer periphery of a plurality of connected sleeve bricks to form a two-layer structure, and the structure is integrated. This is a two-layer sleeve brick for a converter tap that is designed to prevent this.
作 用
本考案に於いては、1種類、または長短2種類
からなるスリーブ煉瓦の外周に一体物煉瓦を配設
して2層構成とし一体化構造としてあるので、初
期の溶損時、あるいは転炉傾動時にダボ割れ、ス
リーブ煉瓦同士の連結力不足、あるいはスリーブ
煉瓦と外巻き煉瓦との連結不足が生じることがな
く、連鎖的な脱落を防止することができるので出
鋼口の寿命を大巾に延命させることができると共
に、補修の頻度を著しく軽減させることができ
る。Function In this invention, an integral brick is arranged around the outer periphery of the sleeve brick consisting of one type or two types of long and short, resulting in a two-layer structure and an integrated structure. When the furnace is tilted, there will be no dowel cracking, insufficient connection strength between sleeve bricks, or insufficient connection between sleeve bricks and outer bricks, and chain falling off can be prevented, greatly extending the life of the tapping port. It is possible to extend the lifespan of the product and to significantly reduce the frequency of repairs.
実施例
以下、本考案を第1図から第5図に示す一実施
例を参照しながら更に詳しく説明する。尚、第1
図から第5図において、第6図と共通する部分に
は同一符号が付されている。Embodiment Hereinafter, the present invention will be explained in more detail with reference to an embodiment shown in FIGS. 1 to 5. Furthermore, the first
In FIGS. 5 to 5, parts common to those in FIG. 6 are given the same reference numerals.
本考案の転炉出鋼口用2層構成スリーブ煉瓦を
用いた脱落防止構造は、第1図に本考案の第1実
施例を適用した転炉出鋼口部の縦断面図、第2図
にスリーブ煉瓦を一体物煉瓦と2層構成にして一
体化構造とした縦断面図、第3図に第2図の矢視
A−A断面図を示すように、1種類、または長短
2種類からなるスリーブ煉瓦1を連結させた外周
に一体物煉瓦5を配設して2層構成とし、一体化
構造とすることによつて構成されている。 The falling-off prevention structure using the two-layered sleeve brick for a converter tap of the present invention is shown in Fig. 1, which is a vertical sectional view of the converter tap port to which the first embodiment of the present invention is applied, and Fig. 2. As shown in Fig. 3 is a vertical cross-sectional view showing an integrated structure in which sleeve bricks are constructed in two layers with integral bricks, and Fig. 3 is a cross-sectional view taken along arrow A-A in Fig. 2, there are one type or two types, long and short. An integral brick 5 is disposed on the outer periphery of the connected sleeve bricks 1 to form a two-layer structure, resulting in an integrated structure.
スリーブ煉瓦1は、例えばMgO−C煉瓦から
なり、所定の内径と肉厚寸法を有する両端開口の
円筒形状に形成し、転炉出鋼口部の大きさに合わ
せて1種類、または長短2種類の煉瓦が連結され
ており、長短2種類を組合せると種々な転炉への
汎用性とすることができる。また、溶鋼流と直接
接触する該スリーブ煉瓦1は、特に耐侵食性、耐
スポーリング性が要求されるため、軸方向の方法
を例えば150〜300m/m程度に分割することによ
つて、高品位のMgO−C煉瓦を一般の油圧プレ
スを用いて高圧成形することによつてより充填密
度を高めることができ、製造困難なスリーブ煉瓦
1の長尺化(一体物)対策を不要とすることがで
きる。そして、複数個連結したスリーブ煉瓦1の
外周には一体物煉瓦5を配設して2層構成とされ
ている。 The sleeve brick 1 is made of, for example, an MgO-C brick, and is formed into a cylindrical shape with openings at both ends having a predetermined inner diameter and wall thickness, and is available in one type or two types, long and short, depending on the size of the converter tap opening. The bricks are connected, and by combining the long and short types, it can be used for a variety of converters. In addition, the sleeve brick 1, which comes into direct contact with the molten steel flow, is particularly required to have corrosion resistance and spalling resistance. By high-pressure forming high-quality MgO-C bricks using a general hydraulic press, the packing density can be further increased, and there is no need to take measures to make the sleeve brick 1 longer (integral), which is difficult to manufacture. Can be done. An integral brick 5 is disposed around the outer periphery of a plurality of connected sleeve bricks 1, resulting in a two-layer structure.
前記一体物煉瓦5は、上記スリーブ煉瓦1を強
固に連結させるためのもので、油圧プレス等によ
り高圧成形されたスリーブ煉瓦1の外周に、例え
ばスリーブ煉瓦1と同品位、または低品位の
MgO−Cを用い、所定の外径寸法で連結したス
リーブ煉瓦1の軸方向寸法と同一寸法で形成され
ている。該一体物煉瓦5は冷間静水圧加圧装置に
よりスリーブ煉瓦1と2層構成とし、スリーブ煉
瓦1同士およびスリーブ煉瓦1と一体物煉瓦5と
を空目地で強固に連結させた一体物構造とするこ
とができる。 The one-piece brick 5 is for firmly connecting the sleeve brick 1, and is made of, for example, the same grade as the sleeve brick 1 or a lower grade on the outer periphery of the sleeve brick 1 which is formed under high pressure by a hydraulic press or the like.
It is formed using MgO-C and has the same axial dimension as the sleeve brick 1 connected with a predetermined outer diameter dimension. The integral brick 5 has a two-layer structure with the sleeve brick 1 using a cold isostatic pressurizing device, and has an integral structure in which the sleeve bricks 1 and the sleeve brick 1 and the integral brick 5 are firmly connected through open joints. can do.
次に本考案の2層構成スリーブ煉瓦を用いた脱
落防止構造の第2実施例について説明する。第4
図は2層構成にして一体化構造とした第2実施例
の縦断面図、第5図は第4図の矢視B−B断面図
である。 Next, a second embodiment of the falling-off prevention structure using the two-layer sleeve brick of the present invention will be described. Fourth
The figure is a longitudinal cross-sectional view of the second embodiment, which has a two-layer structure and an integrated structure, and FIG. 5 is a cross-sectional view taken along the line B--B in FIG. 4.
スリーブ煉瓦1は、出口側端部に用いる出口部
用スリーブ煉瓦1Aと、入口側に用いる1種類、
または長短2種類から成る入口側用スリーブ煉瓦
1Bとで構成されている。 The sleeve brick 1 includes an outlet sleeve brick 1A used at the outlet end, and one type used at the entrance side.
Alternatively, the sleeve brick 1B for the entrance side consists of two types, long and short.
上記出口部用スリーブ煉瓦1Aは、内径寸法を
入口側用スリーブ煉瓦1Bと同一寸法とし、外径
寸法の基端側が入口側用スリーブ煉瓦1Bより大
きくなるようにして軸方向の途中で段差6を設
け、先端側の外径寸法が基端側よりも小さくなる
ように形成されている。この段差6は、スリーブ
煉瓦1の外側に配設する一体物煉瓦5と2層構成
とし、一体化構造とした時により強固に連結させ
るためのもので5〜15m/m程度の段差6を設け
ることによつてダボの役目を果し、転炉稼働中に
おけるスリーブ煉瓦1の脱落(または抜け出し)
防止効果を更に高めることができる。そして、入
口側用スリーブ煉瓦1Bは、第1実施例と同一の
煉瓦を用いれば良い。 The outlet sleeve brick 1A has the same inner diameter as the inlet sleeve brick 1B, and has a step 6 in the middle in the axial direction so that the proximal end of the outer diameter is larger than the inlet sleeve brick 1B. The outer diameter of the distal end is smaller than that of the proximal end. This step 6 has a two-layer structure with the integral brick 5 placed outside the sleeve brick 1, and is provided with a step 6 of about 5 to 15 m/m in order to connect more firmly when an integrated structure is formed. In some cases, the sleeve brick 1 acts as a dowel and falls off (or comes out) during the operation of the converter.
The prevention effect can be further enhanced. The same brick as in the first embodiment may be used as the sleeve brick 1B for the entrance side.
本考案第1、および第2実施例では、スリーブ
煉瓦1の内形を真円としたが、楕円形としたり、
真円を2分割して中央部に直線部を設けた競走路
状に形成することができ、また、スリーブ煉瓦1
の外形も楕円形にしたり、多角形状に形成するこ
ともできる。第2実施例に示した出口部用スリー
ブ煉瓦1Aにおいても、段差6部に勾配を付した
り、同内角部にRを設けたりすることができ、該
出口部用スリーブ煉瓦1Aを先端部だけではな
く、逆向きにして基端部にも設けることができ
る。あるいは、該出口部用スリーブ煉瓦1Aの外
周面に段差6を設ける代りに、外形を截頭円錐形
に形成したり、一体物煉瓦5の外周面から穿孔し
てピン煉瓦等の止め具を挿入し、脱落(または抜
け出し)の防止効果を更に高めることもできる。
更に、施工時に於ける挿入を容易にするために一
体物煉瓦5の外径寸法を先端側は大、基端側は小
として勾配を付したり、外周面の軸方向の途中に
凹ダボを設け、一体化構造物が脱落(または抜け
出し)するのを防止することもでき、図示の実施
例に限定されるものではない。 In the first and second embodiments of the present invention, the inner shape of the sleeve brick 1 was a perfect circle, but it may be oval or
It can be formed into a raceway shape by dividing a perfect circle into two and providing a straight section in the center.
The outer shape can also be formed into an ellipse or a polygon. Also in the sleeve brick 1A for the outlet shown in the second embodiment, the 6 steps can be sloped or the inner corner can be rounded, and the sleeve brick 1A for the outlet can be used only at the tip. Instead, it can also be provided at the proximal end in the opposite direction. Alternatively, instead of providing the step 6 on the outer circumferential surface of the outlet sleeve brick 1A, the outer shape may be formed into a truncated conical shape, or a hole may be bored from the outer circumferential surface of the integral brick 5 and a stopper such as a pin brick may be inserted. However, it is also possible to further enhance the effect of preventing falling off (or slipping out).
Furthermore, in order to facilitate insertion during construction, the outer diameter of the monolithic brick 5 is made larger at the distal end and smaller at the proximal end, and a concave dowel is formed in the middle of the outer peripheral surface in the axial direction. The integrated structure can also be provided to prevent the integrated structure from falling off (or coming off), and is not limited to the illustrated embodiment.
このようにして構成した本考案煉瓦による防止
構造の施工例を説明すると、出鋼、排滓後、出鋼
口の外側に設けたフランジ金物に溶着した滓を酸
素吹付けにより溶流させ、ドリルにより孔を所定
の大きさに削孔する。そして、スリーブ煉瓦の外
周に一体物煉瓦を配設して2層構成とし、一体化
構造とした一体化構造物の外周面にモルタルを塗
布し、内孔には一端にストツパーを取り外し自在
に装着した支持パイプを挿入して削孔した孔内に
装填する。装填した一体化構造物は、ストツパー
と共に外巻き煉瓦、およびフランジ金物に吹付け
材にて固定し、転炉を炉裏が水平状態となるよう
に傾転させて更に炉口部より内側の当該周辺部に
も吹付け材を完全に固定する。 To explain the construction example of the prevention structure using the bricks of the present invention constructed in this way, after tapping and removing the slag, the slag welded to the flange metal fittings provided on the outside of the tapping port is melted by oxygen spraying, A hole is drilled to a predetermined size. Then, a one-piece brick is arranged around the outer circumference of the sleeve brick to create a two-layer structure, and mortar is applied to the outer peripheral surface of the integrated structure, and a stopper is detachably attached to one end of the inner hole. Insert the prepared support pipe and load it into the drilled hole. The loaded integrated structure is fixed to the stopper, outer bricks, and flange hardware using sprayed material, and the converter is tilted so that the hearth is in a horizontal position. Completely fix the spray material around the periphery as well.
考案の効果
以上、説明したように本考案によれば、複数個
連結したスリーブ煉瓦の外周に一体物煉瓦を配設
して2層構成とし、一体化構造としたので、スリ
ーブ煉瓦とスリーブ煉瓦、およびスリーブ煉瓦と
一体物煉瓦とが強固に連結されて溶損、転炉傾転
時における連鎖的なスリーブ煉瓦の脱落を防止す
ることができ、その結果として転炉出鋼口部の寿
命を従来の1.5〜2倍程度と大幅に延命させるこ
とができると共に、稼働途中における補修の頻度
も著しく軽減させることができる。また、複数個
のスリーブ煉瓦を強固に連結して2層構成の一体
化構造物としたことにより、スリーブ煉瓦の長尺
化(一体物)対策を不要にして高品位、高圧成形
のスリーブ煉瓦を使用でき、スリーブ煉瓦施工時
に於けるセツトも容易にすることができる。Effects of the invention As explained above, according to the invention, an integral brick is arranged around the outer periphery of a plurality of connected sleeve bricks to form a two-layer structure and an integrated structure. The sleeve bricks and the integral bricks are firmly connected to each other, preventing melting damage and the chain reaction of the sleeve bricks falling off when the converter is tilted. It is possible to significantly extend the lifespan by approximately 1.5 to 2 times, and also significantly reduce the frequency of repairs during operation. In addition, by firmly connecting multiple sleeve bricks to form a two-layer integrated structure, there is no need to take measures to make the sleeve bricks longer (integral), and high-quality, high-pressure molded sleeve bricks can be produced. It can be used easily and can be easily set when constructing sleeve bricks.
第1図から第5図までは本考案の2層構成スリ
ーブ煉瓦を用いた実施例を示し、第1図は第1実
施例を適用した転炉出鋼口部の縦断面図、第2図
はスリーブ煉瓦を一体物煉瓦と2層構成として一
体化構造とした縦断面図、第3図は第2図の矢視
A−A断面図、第4図は同様に2層構成にして一
体化構造とした第2実施例の縦断面図、第5図は
第4図の矢視B−B断面図、第6図は従来の転炉
出鋼口部縦断面図である。
図中の符号は下記、1:スリーブ煉瓦、2:モ
ルタル目地、3:外巻き煉瓦、4:フランジ金
物、5:一体物煉瓦、6:段差。
Fig. 1 to Fig. 5 show an embodiment using the two-layer sleeve brick of the present invention, Fig. 1 is a longitudinal sectional view of the tap port of a converter to which the first embodiment is applied, and Fig. 2 3 is a vertical cross-sectional view showing an integrated structure in which sleeve bricks and integral bricks have a two-layer structure, FIG. 3 is a cross-sectional view taken along arrow A-A in FIG. 2, and FIG. FIG. 5 is a longitudinal cross-sectional view of the second embodiment of the structure, FIG. 5 is a cross-sectional view taken along arrow B-B in FIG. 4, and FIG. 6 is a longitudinal cross-sectional view of a conventional converter tap opening. The symbols in the diagram are as follows: 1: Sleeve brick, 2: Mortar joint, 3: Outer wrap brick, 4: Flange hardware, 5: Monolithic brick, 6: Step.
Claims (1)
物煉瓦5を配設して2層構成とし、一体化構造
としたことを特徴とする転炉出鋼口用2層構成
スリーブ煉瓦。 (2) 前記スリーブ煉瓦1の外周面を段差、凹凸及
び傾斜構造とした実用新案登録請求の範囲第1
項記載の出鋼口用2層構成スリーブ煉瓦。[Scope of Claim for Utility Model Registration] (1) A converter tapping port characterized in that a plurality of connected sleeve bricks 1 are provided with integral bricks 5 on the outer periphery to form a two-layer structure, resulting in an integrated structure. Two-layer sleeve brick. (2) Utility model registration claim 1 in which the outer circumferential surface of the sleeve brick 1 has a stepped, uneven and inclined structure
A two-layered sleeve brick for tap holes as described in Section 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987099336U JPH02428Y2 (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987099336U JPH02428Y2 (en) | 1987-06-30 | 1987-06-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS647258U JPS647258U (en) | 1989-01-17 |
JPH02428Y2 true JPH02428Y2 (en) | 1990-01-08 |
Family
ID=31326398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987099336U Expired JPH02428Y2 (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02428Y2 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53137109U (en) * | 1977-04-02 | 1978-10-30 |
-
1987
- 1987-06-30 JP JP1987099336U patent/JPH02428Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS647258U (en) | 1989-01-17 |
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