JP2932206B2 - Method for repairing furnace material poured into side wall of molten metal container - Google Patents
Method for repairing furnace material poured into side wall of molten metal containerInfo
- Publication number
- JP2932206B2 JP2932206B2 JP32496690A JP32496690A JP2932206B2 JP 2932206 B2 JP2932206 B2 JP 2932206B2 JP 32496690 A JP32496690 A JP 32496690A JP 32496690 A JP32496690 A JP 32496690A JP 2932206 B2 JP2932206 B2 JP 2932206B2
- Authority
- JP
- Japan
- Prior art keywords
- core
- refractory
- molten metal
- wall
- slag line
- 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 - Lifetime
Links
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は溶融金属容器の側壁内張り流し込み炉材の補
修方法に係り、詳しくは、溶融金属容器の側壁内張り炉
材のスラグライン部に不定形耐火物を流し込み、継ぎ足
し施工することにより容器の寿命を延長し、コスト低減
を可能とした溶融金属容器の側壁内張り流し込み炉材の
補修方法に係る。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a furnace material for lining a side wall of a molten metal container, and more particularly, to a method for repairing a refractory material in a slag line portion of a furnace material lining a side wall of a molten metal container. The present invention relates to a method for repairing a casting material for a lining material in a side wall of a molten metal container, in which the life of the container is extended by pouring and adding the material, and the cost can be reduced.
従来の技術 不定形耐火物で内張りされた溶銑溶鋼等の溶融金属容
器（以下、溶湯容器という）は第４図（ａ）に示すよう
な溶損状態を示し、特に上部の溶損の大きい部分はスラ
グライン２と称されており、この容器の溶損部分のみを
不定形耐火物で補修すればよいが、この部分を補修する
良い方法が無いのが実情である。従って、第４図（ｂ）
に示すように残存する耐火物６を解体し、しかる後中子
１をセットし、スラグライン２と解体された耐火物の部
分とに不定形耐火物を継ぎ足して補修する方法がある。2. Description of the Related Art A molten metal container (hereinafter, referred to as a molten metal container) made of molten iron or the like, which is lined with an amorphous refractory, shows a molten state as shown in FIG. 4 (a). Is called a slag line 2, and only the eroded portion of this container needs to be repaired with an irregular refractory, but there is no good method for repairing this portion. Therefore, FIG. 4 (b)
As shown in (1), there is a method in which the remaining refractory 6 is dismantled, the core 1 is set thereafter, and the slag line 2 and the dismantled refractory are added with an irregular refractory to repair the refractory.
ここで残存する耐火物６の一部を第４図（ｂ）に示す
ように解体するのは、中子１と残存する耐火物６の間の
間隔をある程度とって流し込み不定形耐火物が流れ込み
易いようにするためであり、また、第４図（ａ）の耐火
物が溶存した部分に、そのままの状態で不定形耐火物を
流し込むと、不定形耐火物のうちの澱粉、液体が下方に
流れ、不定形耐火物の所定の品質が確保できないためで
ある。Here, a part of the remaining refractory 6 is dismantled as shown in FIG. 4 (b) because a certain interval is provided between the core 1 and the remaining refractory 6 so that the irregular refractory flows. In addition, when the amorphous refractory is poured into the portion where the refractory is dissolved as shown in FIG. 4 (a) as it is, the starch and the liquid of the irregular refractory are lowered. This is because the predetermined quality of the flow and the irregular refractory cannot be secured.
この問題を解決するために、特開昭58−95185号公報
には施工厚み測距具を装備した鋼板と可撓性板状材とを
組合わせて中子の形状を任意に設定できる不定形状流し
込み用中子が提案されている。しかし、このような従来
法では例えば溶湯容器の側壁内張りのスラグライン２か
ら溶湯容器の鋼浴部上部までのみの不定形耐火物の流し
込みによる補修は困難であるため、れんが積みによる補
修を行なっていた。つまり、容器側壁内張りの上部のみ
の継ぎ足し補修は困難であり、省力化が進まないという
問題があった。In order to solve this problem, Japanese Unexamined Patent Publication No. 58-95185 discloses an irregular shape in which the shape of the core can be set arbitrarily by combining a steel plate equipped with a work thickness measuring device and a flexible plate-like material. A casting core has been proposed. However, in such a conventional method, for example, it is difficult to repair the molten metal from the slag line 2 lining the side wall of the melt vessel to the upper portion of the steel bath portion of the melt vessel by pouring the refractory material into the molten metal. Was. That is, it is difficult to add and repair only the upper part of the inner lining of the container side wall, and there is a problem that labor saving does not proceed.
また、特開昭62−179863号公報に示されるように、溶
湯容器の底部、内壁部及びスラグライン部に永久張りれ
んがを積んだ後、底部れんがを積み、更に、スラグライ
ンれんがをスラグライン永久れんがの内側面に沿って容
器中心方向に片持梁状に張り出すように積み、次いで、
容器の内壁面と中子壁面とにより形成される空間に不定
形耐火物を投入しライニング施工する方法がある。この
方法は固形れんが積み作業と不定形耐火物ライニング作
業との作業時期を区分して施工手順を簡易にしかつ労力
負担を軽減するという利点があるが、スラグライン部の
みの継ぎ足し流し込み補修に適した方法とは云えない。Further, as shown in JP-A-62-179863, after a permanent brick is placed on the bottom, inner wall, and slag line of a molten metal container, a bottom brick is loaded, and further, the slag line brick is placed on a slag line permanent. Stacked along the inner surface of the brick so as to project in a cantilever manner toward the center of the container,
There is a method in which an amorphous refractory is charged into a space formed by an inner wall surface and a core wall surface of a container to perform lining construction. This method has the advantage of simplifying the construction procedure and reducing the labor burden by separating the work time between solid brick work and irregular-shaped refractory lining work, but is suitable for refilling and repairing only the slag line part. It is not a method.
また、この方法ではれんが積み部分と鋼浴部の不定形
耐火物部分とが肌分かれし、そこから地金が差し込み永
久張りと内張りの間に地金がまわるという問題があり、
このため、スラグライン部から鋼浴部上部のみの修理時
に地金を取り除くため内壁の解体範囲を拡げる必要があ
った。In addition, in this method, there is a problem that the brickwork portion and the irregular-shaped refractory portion of the steel bath portion are separated from each other, and the metal is inserted from there, and the metal is turned between the permanent lining and the lining,
For this reason, it was necessary to expand the dismantling range of the inner wall in order to remove the metal when repairing only the upper part of the steel bath from the slag line.
発明が解決しようとする課題 本発明は上記問題の解決を目的とし、具体的には、昇
降式中子を用い溶湯容器の側壁内張り流し込み炉材のス
ラグライン部の溶損部分をキャスタブル等の不定形耐火
物の流し込みにより施工し補修することができる溶湯容
器の側壁内張り流し込み炉材の補修方法を提案すること
を目的とする。Problem to be Solved by the Invention The object of the present invention is to solve the above-mentioned problem. Specifically, the erosion portion of the slag line portion of the furnace material lined into the side wall of the molten metal vessel using a lifting core is castable or the like. An object of the present invention is to propose a method for repairing a casting material for a furnace lining a side wall of a molten metal vessel, which can be constructed and repaired by pouring a fixed refractory.
課題を解決するための手段ならびにその作用 すなわち、本発明は、取鋼等の溶融金属容器内壁を補
修する際に、昇降式中子を用い内壁のスラグライン下を
一旦流し込み補修し、次いで、中子を上昇させ、所定内
壁厚になるよう内壁を中子間の距離を調整し、補修した
内壁内面を中子間をシールした後、スラグライン部へ不
定形耐火物を流し込むことを特徴とする。Means for Solving the Problems and Their Functions That is, when the present invention repairs the inner wall of a molten metal container such as steelmaking steel, it once poured and repaired a slag line on the inner wall using an elevating core, Raising the core, adjusting the distance between the cores on the inner wall so as to have a predetermined inner wall thickness, sealing the inner surface of the repaired inner wall between the cores, and then pouring an irregular refractory into the slag line portion. .
以下、本発明の手段たる構成ならびにその作用につい
て図面に従って詳しく説明すると、次の通りである。Hereinafter, the configuration as the means of the present invention and its operation will be described in detail with reference to the drawings.
第１図（ａ）、（ｂ）、（ｃ）、（ｄ）ならびに
（ｅ）はそれぞれ本発明法の一つの実施例の溶湯容器の
補修作業を説明する縦断面図であり、第２図（ａ）なら
びに（ｂ）は他の実施例の溶湯容器の補修作業を説明す
る縦断面図であり、第３図（ａ）ならびに（ｂ）はそれ
ぞれ本発明法を実施する際に用いられる中子の一例を示
す縦断面図であり、第４図（ａ）ならびに（ｂ）はそれ
ぞれ従来例の溶湯容器を示し、（ａ）はスラグライン部
を有する耐火物に中子を挿入した場合の縦断面図、
（ｂ）はスラグライン部を有する耐火物の一部を剥離し
た耐火物内に中子を挿入した場合の縦断面図である。1 (a), 1 (b), 1 (c), 1 (d) and 1 (e) are longitudinal sectional views each illustrating a repair operation of a molten metal container according to one embodiment of the present invention, and FIG. (A) and (b) are longitudinal sectional views for explaining a repair operation of a molten metal container of another embodiment, and FIGS. 3 (a) and (b) are medium sectional views used for carrying out the method of the present invention. FIGS. 4 (a) and 4 (b) each show a conventional molten metal container, and FIG. 4 (a) and FIG. 4 (b) each show a conventional molten metal container, and FIG. 4 (a) shows a case where a core is inserted into a refractory having a slag line portion. Longitudinal section,
(B) is a longitudinal sectional view when a core is inserted into a refractory obtained by removing a part of the refractory having a slag line portion.
まず、第１図（ａ）に示すように符号10は溶湯容器を
示し、この容器10は鉄皮４の側壁内張り炉材として例え
ば耐火粘土質のものを主体とする不定形耐火物３をライ
ニング施工したものである。First, as shown in FIG. 1 (a), reference numeral 10 denotes a molten metal container, and this container 10 is lined with an irregular-shaped refractory 3 mainly made of, for example, fire-resistant clay as a furnace material for lining the side wall of a steel shell 4. It was constructed.
この容器10の繰り返し使用によって第１図（ｂ）に示
すように不定形耐火物３が損耗し、なかでも、スラグラ
イン２の部分が大きく損耗する。そこで、第１図（ｃ）
に示すようにスラグライン２の部分（点線の部分）を除
去した後、第１図（ｂ）に示すようにこの容器10の側壁
内張り耐火物３内に鋼浴部の高さと同程度の高さの下部
にジャッキ（リフター）11を配設した中子１を挿入し、
内張り耐火物３と中子１との隙間をシール材6aによりシ
ールする。このシール材としては材料の粘結性を利用す
る水ボタやキャスタブル、或いは粘結性を有しないが、
伸縮性を有する空気を入れたゴムチューブ類等があげら
れる。As shown in FIG. 1 (b), repetitive use of the container 10 causes the irregular-shaped refractory 3 to be worn, and particularly, the slag line 2 to be greatly worn. Therefore, FIG. 1 (c)
After removing the portion of the slag line 2 (the portion indicated by the dotted line) as shown in FIG. 1B, as shown in FIG. Insert the core 1 with the jack (lifter) 11 at the bottom of the
The gap between the refractory lining 3 and the core 1 is sealed with a sealing material 6a. This sealing material does not have water bottling or castable utilizing the caking property of the material, or caking property,
Rubber tubes filled with air having elasticity may be used.
この空気入りのチューブ類のシール材として使用する
方法については本発明の出願人等がさきに提案したもの
を本発明に適用することができる。すなわち、第３図
（ａ）ならびに（ｂ）に示すようにこのシール材は容器
10の内壁面に対応した平断面形状で、かつ底面外周端部
に切欠き凹部を設けた中子１に切欠き凹部に巻装される
いわゆるパッキン材と呼称される伸縮袋８を取付けたも
のから成り、中子１の底部切欠き凹部に空気取入口９を
設け、空気の圧入放出により伸縮するように構成しシー
ルするようにしたものである。Regarding the method of using this air-filled tube as a sealing material, the method proposed earlier by the applicant of the present invention can be applied to the present invention. That is, as shown in FIGS. 3 (a) and (b), this sealing material is a container.
10. A core 1 having a flat cross section corresponding to the inner wall surface of 10 and having a cutout recess at the outer peripheral end of the bottom surface, and an elastic bag 8 called a packing material wound around the cutout recess attached to the core 1. An air inlet 9 is provided in the cutout recess at the bottom of the core 1 so as to be expanded and contracted by press-in and release of air so as to be sealed.
そして、中子１の高さの上部いっぱいまで不定形耐火
物３を流し込み第１回目継ぎ目足し施工し、スラグライ
ン下の内壁を少なくとも部分的に補修し内壁に連続性を
もたせた後、スラグラインに必要な厚みを出すため第１
図（ｅ）に示すように中子１をジャッキ（リフター）11
により上昇させて中子の高さを調整し、第１回目継ぎ目
足し施工した部分５と中子１との間の隙間を前記と同様
にシール材6bによりシールした後、その上方の中子１と
鉄皮４との間の隙間に不定形耐火物を流し込みし第２回
継ぎ目足し施工する。Then, the irregular-shaped refractory 3 is poured to the upper portion of the height of the core 1 and the first seam is added, and the inner wall under the slag line is at least partially repaired to give continuity to the inner wall. First to get the necessary thickness for
As shown in FIG. 1E, the core 1 is jacked (lifter) 11.
The gap between the core 5 and the portion 5 where the first seam is added and sealed is sealed with the sealing material 6b in the same manner as described above, and the core 1 above the core 1 is adjusted. An irregular-shaped refractory is poured into the gap between the steel shell 4 and the second seam.
以上説明した方法によれば、溶湯容器の側壁内張り不
定形耐火物のスラグライン等の壁上部の部分的継ぎ足し
補修が簡単なシール方法により行なうことができる。According to the method described above, it is possible to perform a partial replenishment and repair of the upper part of the wall such as the slag line of the irregular-shaped refractory lining the side wall of the molten metal container by a simple sealing method.
また、溶湯容器の鋼浴部の内張りライニングに通常使
用されている耐火粘土質のものをアルミナスピネル系不
定形耐火物とし、スラグライン部をジルコン系不定形耐
火物により流し込みライニング施工すると、鋼浴部の寿
命が250chとなる。そこで、側壁内張り全体の補修を250
ch程度毎に行なうことが望ましい。In addition, if the refractory clay material normally used for the lining of the steel bath part of the molten metal vessel is made of alumina spinel-type irregular refractory and the slag line part is poured with zircon-type irregular refractory, the steel bath The life of the unit is 250ch. Therefore, repair of the entire side wall lining was performed by 250
It is desirable to carry out every channel.
しかし、従来例のスラグライン部の寿命が最初の耐火
粘土質の不定形耐火物の場合も固形れんがの場合も70〜
80ch程度であるため、側壁内張り全体の修理までにスラ
グライン部の補修を３回程度する必要がある。However, the life of the slag line portion of the conventional example is 70 to 70 for both the first refractory clay-based amorphous refractory and the solid brick.
Since it is about 80 channels, it is necessary to repair the slag line part about three times before repairing the entire side wall lining.
また、鋼浴部寿命の250chに合わせるため、スラグラ
イン部の３回目のれんが積みによる修理時にはれんが厚
を薄くする等の調整が必要であったが、本発明法によれ
ばスラグライン部のジルコン系不定形耐火物の流し込み
ライニング施工厚の調整が昇降式中子１の上下移動によ
り可能であることから、ジルコン系不定形耐火物の流し
込み部の寿命を125ch程度となるよう、ライニング施工
厚さを厚くすると側壁内張り全体の修理までにスラグラ
イン部の補修は２回ですませることができる。また、壁
内張り全体の流し込みに本発明法を用いればスラグライ
ン部のみの補修は１回とすることができる。In addition, in order to match the life of the steel bath with 250 ch, it was necessary to make adjustments such as reducing the thickness of the brick at the time of the third brick repair in the slag line. The thickness of the lining construction can be adjusted by vertically moving the elevating core 1 so that the service life of the casting part of the zircon based refractory can be about 125ch. If the thickness is increased, the slag line can be repaired twice before the entire side wall lining is repaired. Further, if the method of the present invention is used for pouring the entire wall lining, only the slag line portion can be repaired once.
また、他の実施例の一例としては第２図（ａ）ならび
に（ｂ）に示すように鋼浴部と同程度の高さのジャッキ
を下部に配設した中子１をスラグライン２を有する溶鋼
容器10の側壁内張り耐火材内に挿入し、所定の不定形耐
火物を鋼浴部に流し込み施工する。Further, as another example of the embodiment, as shown in FIGS. 2 (a) and 2 (b), a slag line 2 is provided with a core 1 in which a jack having the same height as that of a steel bath is disposed at a lower portion. It is inserted into the refractory material lining the side wall of the molten steel container 10, and a predetermined irregular-shaped refractory is poured into the steel bath part for construction.
次に、ジャッキ11を下部に配設した中子１をジャッキ
が上昇可能な位置まで上昇させ、さきに流し込み施工し
たライニング材と中子１との隙間を前記実施例のものと
同様のシール材によりシールした後、所定の不定形耐火
物を流し込み施工するようにすればよい。Next, the core 1 provided with the jack 11 at the lower part is raised to a position where the jack can be lifted, and the gap between the lining material poured into the core and the core 1 and the core 1 is made of the same sealing material as that of the above embodiment. After sealing, a predetermined irregular-shaped refractory may be poured in and applied.
実施例1. 製鋼工場において用いられる溶鋼用取鍋の修理を下記
の方法によって行なった。Example 1. A ladle for molten steel used in a steelmaking factory was repaired by the following method.
鋼浴部と同程度の高さのジャッキを下部に配設した中
子を取鍋内に挿入し、内張り耐火物と中子との隙間を第
１図（ｃ）に示すキャスタブル不定形耐火物からなるシ
ール材によりシールした後、このシール材の上に中子の
高さの限度までアルミナスピネル系不定形耐火物を流し
込み第１回継ぎ目足し部分５を施工した。Insert a core with a jack at the same height as the steel bath at the bottom into the ladle, and insert a gap between the refractory lining and the core as shown in Fig. 1 (c). After sealing with a sealing material consisting of, an alumina spinel-based irregular-shaped refractory was poured onto the sealing material to the limit of the core height, and a first seam adding portion 5 was constructed.
次に、第１図（ｄ）に示すように中子を取鍋の上縁に
出合うまで上昇させて上記と第１回継ぎ目足し部分と中
子との隙間を所定の厚さになるよう調整した後、同様に
シールを行なった後、このシール部上部にジルコン系不
定形耐火物を流し込み、第２回継ぎ目足し部分を施工し
た。Next, as shown in FIG. 1 (d), the core is raised until the upper edge of the ladle meets the upper edge of the ladle, and the gap between the above and the first seam added portion and the core is adjusted to a predetermined thickness. After sealing, a zircon-based irregular-shaped refractory was poured into the upper portion of the seal portion, and a second seam adding portion was constructed.
以上のような取鍋の補修方法によれば取鍋の内壁上部
のスラグライン部の厚さが厚く調整することができると
共に、部分的継ぎ足し補修が簡単に行なうことができ、
取鍋の寿命の延長が可能となった。According to the above-described ladle repair method, the thickness of the slag line at the upper part of the inner wall of the ladle can be adjusted to be thicker, and partial replenishment repair can be easily performed.
The life of the ladle can be extended.
実施異例2. 第２図（ａ）ならびに（ｂ）に示すように、実施例１
と同様な中子を鋼浴部に挿入し、取鍋内壁と中子との隙
間にアルミナスピネル系キャスタブルを流し込み施工
し、スラグライン部の下部に第１回目継ぎ足し部分を形
成させた。次いで、この中子を上昇させ、中子と第１回
目継ぎ足し部分の内壁上部との間の隙間にシール材を配
置してシールし、そのシール部の上部にジルコン系不定
形耐火物を流し込み施工し、第２回目継ぎ足し部分を形
成させ補修を行なった。Example 2 As shown in FIGS. 2 (a) and (b), Example 1
A core similar to that described above was inserted into the steel bath, and an alumina spinel castable was poured into the gap between the inner wall of the ladle and the core to perform the first addition at the lower part of the slag line portion. Next, the core is raised, a sealing material is disposed in a gap between the core and the upper portion of the inner wall of the first refilling portion to seal, and a zircon-based refractory is poured into the upper portion of the sealing portion. Then, a second splicing portion was formed and repaired.
以上のように施工すると、実施例１と同様にスラグラ
イン部の厚さがシール材部分だけ拡げられ、しかも、取
鍋の補修が簡単に行なわれ、かつ取鍋寿命が延長するこ
とができた。When constructed as described above, the thickness of the slag line portion was increased only in the sealing material portion as in Example 1, and the ladle was easily repaired and the ladle life could be extended. .
実施例3. 第３図（ａ）ならびに（ｂ）に示す空気入りチューブ
を使用した昇降式中子を第２回目継ぎ足し部分の流し込
み施工に用いた以外は実施例２と同様に行なった。Example 3 The same procedure as in Example 2 was carried out except that the elevating core using the pneumatic tube shown in FIGS. 3 (a) and 3 (b) was used for the second refilling operation.
高さ約1.5mの中子の下端部に水平方向10cm、高さ方向
15cmの切欠き凹部を設け、ここに厚み2mmのゴム製空気
袋を巻き付けた。At the lower end of the core about 1.5m in height, horizontal 10cm, height
A 15 cm notch recess was provided, and a rubber air bag having a thickness of 2 mm was wrapped around the recess.
空気袋原型の大きさは外径15cmφで、空気圧が2kg/cm
2である空気を導入すると25cmφまで膨脹するものを用
いた。The size of the air bag prototype is 15 cm in outer diameter and the air pressure is 2 kg / cm
The one which expands to 25 cmφ when the air which is 2 was introduced was used.
中子の下部はジャッキを配設し、容器の中に自立させ
て、中子を容器の中にセットする。次に、空気の取入口
９から圧縮空気（2kg/cm2）を送り込み空気袋を膨張さ
せる。空気袋が内張り耐火物３と密着した後、中子の内
張り耐火物との間に不定形耐火物を流し込み施工するよ
うにしたところ、実施例２と同様の効果が得られた。A jack is arranged at the lower part of the core, and the core is set to stand in the container, and the core is set in the container. Next, compressed air (2 kg / cm 2 ) is sent from the air inlet 9 to expand the air bag. After the air bag was brought into close contact with the refractory lining 3, an irregular refractory was poured between the core and the refractory lining, and the same effect as in Example 2 was obtained.
＜発明の効果＞ 以上詳しく説明したように、本発明は、取鍋等の溶融
金属容器内壁を補修する際に、昇降式中子を用い内壁の
スラグライン下を一旦流し込み補修し、次いで、中子を
上昇させ、所定内壁厚になるよう内壁を中子間の距離を
調整し、補修した内壁内面を中子間をシールした後、ス
ラグライン部へ不定形耐火物を流し込むことを特徴とす
る。<Effects of the Invention> As described in detail above, the present invention repairs the inner wall of a molten metal container such as a ladle by pouring and repairing the inner wall of the molten metal container using a lifting core once below the slag line. Raising the core, adjusting the distance between the cores on the inner wall so as to have a predetermined inner wall thickness, sealing the inner surface of the repaired inner wall between the cores, and then pouring an irregular refractory into the slag line portion. .
本発明法は溶湯容器の内壁を補修する際に昇降式中子
を用い先づスラグライン下を流し込み補修し、次いで、
中子を上昇させ所定内壁厚になるよう内壁と中子間をシ
ールした後、スラグライン部へ不定形耐火物を流し込み
補修するようにしたため、下記に示す効果が得られた。In the method of the present invention, when repairing the inner wall of the molten metal container, first of all, it is poured under the slag line and repaired using a lifting type core,
After raising the core and sealing between the inner wall and the core so as to have a predetermined inner wall thickness, an irregular refractory was poured into the slag line portion for repair, and the following effects were obtained.
（１）省力化による作請費の削減 （２）地金差し込みが無くなり、次の修理時の修理範囲
が狭くなることによる原単価の削減 （３）スラグライン部の施工厚を厚くする調整が可能で
壁内張り全体の修理までのスラグライン部の補修は少な
くも１回でよい。(1) Reduction in contracting costs due to labor saving (2) Reduction in original unit price due to elimination of bullion insertion and narrowing of the repair range at the next repair (3) Adjustment to increase the construction thickness of the slag line section It is possible to repair the slag line part at least once until the entire wall lining is repaired.
第１図（ａ）、（ｂ）、（ｃ）、（ｄ）ならびに（ｅ）
はそれぞれ本発明法の一つの実施例の溶湯容器の補修作
業を説明する縦断面図、第２図（ａ）ならびに（ｂ）は
他の実施例の溶湯容器の補修作業を説明する縦断面図、
第３図（ａ）ならびに（ｂ）はそれぞれ本発明法を実施
する際に用いられる中子の一例を示す縦断面図、第４図
（ａ）ならびに（ｂ）はそれぞれ従来例の溶湯容器を示
し、（ａ）はスラグライン部を有する耐火物に中子を挿
入した場合の縦断面図、（ｂ）はスラグライン部を有す
る耐火物の一部を剥離した耐火物内に中子を挿入した場
合の縦断面図である。 符号１……中子 ２……スラグライン ３……耐火物 ４……鉄皮 ５……第１回目継ぎ足し部分 6a、6b……シール材 ７……不定形耐火物供給管 ８……伸縮袋 ９……空気出入口 10……溶湯容器 11……ジャッキFIG. 1 (a), (b), (c), (d) and (e)
FIGS. 2A and 2B are longitudinal sectional views each illustrating a repair operation of a molten metal container according to one embodiment of the present invention, and FIGS. 2A and 2B are longitudinal sectional views illustrating a repair operation of a molten metal container according to another embodiment. ,
3 (a) and 3 (b) are longitudinal sectional views each showing an example of a core used in carrying out the method of the present invention, and FIGS. 4 (a) and (b) are each a conventional molten metal container. (A) is a longitudinal cross-sectional view when a core is inserted into a refractory having a slag line portion, and (b) is a core inserted into a refractory obtained by removing a part of the refractory having a slag line portion. It is a longitudinal cross-sectional view in the case of having performed. Reference numeral 1 ... Core 2 ... Slag line 3 ... Refractory 4 ... Steel 5 ... First jointed portion 6a, 6b ... Sealing material 7 ... Irregular refractory supply pipe 8 ... Elastic bag 9 Air inlet and outlet 10 Molten container 11 Jack
───────────────────────────────────────────────────── フロントページの続き (72)発明者 南部 正夫 岡山県倉敷市水島川崎通１丁目（番地な し） 川崎製鉄株式会社水島製鉄所内 (72)発明者 金谷 利雄 岡山県倉敷市水島川崎通１丁目（番地な し） 川崎製鉄株式会社水島製鉄所内 (72)発明者 藤原 克行 兵庫県赤穂市中広字東沖1576番地の２ 川崎炉材株式会社内 (56)参考文献 特開 平３−106556（ＪＰ，Ａ) 実開 昭60−82199（ＪＰ，Ｕ) 特公 昭50−5656（ＪＰ，Ｂ１) 実公 昭44−9646（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.6，ＤＢ名) B22D 41/02 F27D 1/16 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masao Nambu 1-chome, Mizushima-Kawasaki-dori, Kurashiki-shi, Okayama Pref. Chome (without address) Inside the Mizushima Works of Kawasaki Steel Corporation (72) Inventor Katsuyuki Fujiwara 1576, Higashi-oki, Aki-shi, Ako City, Hyogo Prefecture 2 Kawasaki Furnace Materials Co., Ltd. (56) References JP-A-3-106556 (JP, A) JP-A 60-82199 (JP, U) JP-B 50-5656 (JP, B1) JP-B 44-9646 (JP, Y1) (58) Fields investigated (Int. Cl. 6) , DB name) B22D 41/02 F27D 1/16
Claims (1)
に、昇降式中子を用い前記内壁のスラグライン下を一旦
流し込み補修し、次いで、前記中子を上昇させ、所定内
壁厚になるよう前記内壁を前記中子間の距離を調整し、
前記補修した内壁内面を前記中子間をシールした後、ス
ラグライン部へ不定形耐火物を流し込むことを特徴とす
る溶融金属容器の側壁内張り流し込み炉材の補修方法。When the inner wall of a molten metal container such as a ladle is repaired, the inner wall of the molten metal container is repaired by temporarily pouring the inner wall below a slag line, and then the core is raised to a predetermined inner wall thickness. Adjust the distance between the inner core and the core so that
A method of repairing a furnace material for lining a side wall of a molten metal container, wherein after the inner wall of the repaired inner wall is sealed between the cores, an irregular refractory is poured into a slag line portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32496690A JP2932206B2 (en) | 1990-11-27 | 1990-11-27 | Method for repairing furnace material poured into side wall of molten metal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32496690A JP2932206B2 (en) | 1990-11-27 | 1990-11-27 | Method for repairing furnace material poured into side wall of molten metal container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04197574A JPH04197574A (en) | 1992-07-17 |
| JP2932206B2 true JP2932206B2 (en) | 1999-08-09 |
Family
ID=18171616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32496690A Expired - Lifetime JP2932206B2 (en) | 1990-11-27 | 1990-11-27 | Method for repairing furnace material poured into side wall of molten metal container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2932206B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2718894B2 (en) * | 1994-06-14 | 1998-02-25 | イントカスト・ゲーエムベーハー・フォイヤーフェストプロドゥクテ・ウント・ギースヒルフスミッテル | Templates for partially applying the casting material to form the internal structure of the lining for repairing the refractory lining of the ladle |
| CN106424692A (en) * | 2016-10-26 | 2017-02-22 | 舞阳钢铁有限责任公司 | Constructing and repairing method for minor repair or mend of steel ladle of electric furnace |
-
1990
- 1990-11-27 JP JP32496690A patent/JP2932206B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04197574A (en) | 1992-07-17 |
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