JPS6340299Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は特に熱い取鍋の補修作業に便利な取鍋
補修作業車に関する。[Detailed Description of the Invention] The present invention relates to a ladle repair work vehicle which is particularly convenient for repair work of hot ladles.

製鋼プロセス等に用いる溶鋼用取鍋は、使用時
間の増大につれて各所が傷んで来るので補修をせ
ねばならない。特に炉底ガス吹込を行う取鍋、例
えば取鍋真空脱ガス用取鍋、および取鍋精練炉等
においては、ガス吹込用ノズルを数回の使用ごと
に新しいものと交換しなければならない。そのほ
か鋳込ノズルやスラグラインの耐火物も補修が必
要になつてくる。これら補修作業は、取鍋が冷え
るのを待つてやつていたのでは非常に時間がかか
り、その分余分に取鍋を準備しておかねばなら
ず、また補修後の再使用に際しては再加熱せねば
ならないので、熱経済上も非常に不利となる。 Ladles for molten steel used in the steelmaking process etc. become damaged in various parts as the time of use increases, so they must be repaired. Particularly in ladles that carry out bottom gas injection, such as ladles for ladle vacuum degassing, ladle scouring furnaces, etc., the gas injection nozzle must be replaced with a new one every few uses. In addition, the refractories of the casting nozzle and slag line will also need to be repaired. These repair works would take a lot of time if you had to wait for the ladle to cool down, and you would have to prepare an extra ladle for that, and you would have to reheat it when you reuse it after repair. This is extremely disadvantageous in terms of thermoeconomics.

従つて止むを得ない場合を除き熱いうちに補修
するが、使用直後の取鍋内部は1400℃程度の高温
であるので内部からの補修は普通困難である。従
つて、ガス吹込用ノズル（一般にはポーラスレン
ガが用いられる）の取り替え作業は、取鍋の外部
から行なえるようにしてある。しかし、この場合
も、外部からの作業だけでは仲々うまくゆかな
い。例えば、ポーラスプラグレンガの取り外しに
は、長い棒で取鍋の内側からポーラスプラグレン
ガを突いて押し出さねばならないことが往々にし
て生じるし、また新しいポーラスレンガをセツト
した際の目地詰めも、外側からの作業では充分な
作業精度が得られず、このため、この部分からの
湯洩れ事故やポーラス寿命の低下、更にはガス吹
込不能による溶鋼の撹拌不良事故につながる場合
がある。このような作業を取鍋内に作業員が入つ
て外側と協力してやるのが望ましいのであるが、
取鍋内部は1000℃以上の高温であり、そのままで
は入るわけにはゆかない。 Therefore, unless it is unavoidable, repairs should be made while the ladle is hot, but since the inside of the ladle is at a high temperature of about 1400°C immediately after use, it is usually difficult to repair it from inside. Therefore, the gas blowing nozzle (generally made of porous brick) can be replaced from outside the ladle. However, in this case as well, work from outside alone is not enough. For example, to remove a porous plug brick, it is often necessary to push it out from the inside of a ladle with a long stick, and when a new porous brick is installed, filling the joints is done from the outside. In this operation, sufficient accuracy cannot be obtained, and this may lead to accidents such as leakage of metal from this part, shortened porous life, and even failure to stir the molten steel due to inability to blow gas. It would be desirable to have a worker inside the ladle and cooperate with those outside to carry out such work.
The temperature inside the ladle is over 1000 degrees Celsius, so you can't just go into it.

本考案は以上に鑑みなされたもので、レール上
を走行する台車と該台車の前部に、該台車から前
方へ少なくとも取鍋の深さと同じ長さ突き出すよ
うに取りつけた補修作業カプセルとから主として
なり、該カプセルは全体が水冷され、且つその適
切場所に作業用開口を設けたことを特徴とする取
鍋補修作業車である。 The present invention was devised in view of the above, and consists mainly of a truck that runs on rails and a repair work capsule attached to the front part of the truck so as to protrude forward from the truck by at least the same length as the depth of the ladle. The capsule is a ladle repair work vehicle characterized in that the entire capsule is water-cooled and has work openings provided at appropriate locations.

次に、図面に示す実施例にもとづき本考案を説
明する。第１図は本考案になる取鍋補修作業車の
一実施例の側面断面図で第２図のＢ−Ｂ矢視図、
第２図は正面図で第１図のＡ−Ａ矢視図である。
図において１は台車で本例の場合は駆動モーター
２を積んだ自走方式としたが、モーターを地上に
置いたワイヤけん引式、その他の駆動方式も採用
し得る。 Next, the present invention will be explained based on embodiments shown in the drawings. Fig. 1 is a side sectional view of one embodiment of the ladle repair work vehicle of the present invention, and a view taken along the line B-B in Fig. 2;
FIG. 2 is a front view taken along the line A--A in FIG. 1.
In the figure, reference numeral 1 denotes a trolley, and in this example, it is a self-propelled type equipped with a drive motor 2, but a wire towed type in which the motor is placed on the ground or other drive types may also be adopted.

３，３′は作業カプセル７を取りつける為のマ
ストで本例の場合はＨ型鋼２本を使用し、これに
横梁５，５′および支柱４，４′を加えて強固にし
たものである。作業カプセルの取りつけ方法とし
ては、他にも例えば台車から前方へ２本の支持梁
を突出させて、その上に支持するなども適切であ
る。なお、台車の後端部には必要に応じてバラン
スウエイト６を積載し、また作業カプセルへの出
入りに便利なようにデツキ１２′を付設する。次
に７は補修作業カプセルであつて補修すべき取鍋
の内部に挿入できる大きさの有底円筒形をしてお
り、全面を水冷している。本例の場合円筒形とし
たが箱形その他の形状でもよい。水冷方式も種類
は問わないが、本実施例の如く、壁全体を少しの
間隙を保つた二重壁とし、その間隙に隔壁を入れ
て連続する水路１０を構成し、これに給配水管１
１を配してもよい。また作業カプセル７の壁面の
必要場所に作業用の開口を設ける。本例の場合
は、取鍋１３の底のガス吹込用ポーラスノズル１
４の取り替え作業用の開口９と、同じく溶鋼流出
用ノズル補修用開口９′を設けたがこのほか必要
に応じ必要個所に設ければよい。開口部には、蓋
を付設するのが望ましいが必須ではない。作業カ
プセルは横転した取鍋内に横にして挿入するが、
その状態で作業するに便利なように作業床１２を
設けるのが望ましい。以上の如く構成した作業カ
プセルを台車の前部に、台車から前方へ突出する
ように取りつける。取り付け方法はいずれでもよ
いが、本例においてはマスト３，３′と作業カプ
セルの口縁部全周に設けたブラケツト８をボルト
結合した。更に給排水管１１に外部からの給排水
管１１′を結合する。本実施例の取鍋補修作業車
は以上の如くに構成されている。 Reference numerals 3 and 3' denote masts for attaching the work capsule 7, and in this example, two H-beams are used, and cross beams 5 and 5' and struts 4 and 4' are added to strengthen the masts. Other suitable methods for attaching the work capsule include, for example, protruding two support beams forward from the truck and supporting the work capsule on the two support beams. A balance weight 6 is loaded on the rear end of the truck as required, and a deck 12' is attached for convenient access to and from the work capsule. Next, 7 is a repair work capsule, which has a cylindrical shape with a bottom and is large enough to be inserted into the inside of the ladle to be repaired, and its entire surface is water-cooled. In this example, the shape is cylindrical, but the shape may be a box or other shape. Although any type of water cooling system may be used, as in this embodiment, the entire wall is made of a double wall with a small gap, a partition is inserted into the gap to form a continuous water channel 10, and a water supply pipe 10 is connected to the continuous water channel 10.
1 may be placed. In addition, openings for work are provided at necessary locations on the wall surface of the work capsule 7. In this example, the porous nozzle 1 for blowing gas at the bottom of the ladle 13
Although the opening 9 for the replacement work of No. 4 and the opening 9' for repairing the molten steel outflow nozzle are provided, other openings 9 may be provided at necessary locations as necessary. It is desirable, but not essential, to provide a lid to the opening. The work capsule is inserted horizontally into the overturned ladle,
It is desirable to provide a work floor 12 so that it is convenient to work in this state. The work capsule constructed as described above is attached to the front part of the truck so as to protrude forward from the truck. Although any attachment method may be used, in this example, the masts 3, 3' and the bracket 8 provided around the entire mouth edge of the work capsule are connected by bolts. Furthermore, a water supply and drainage pipe 11' from the outside is connected to the water supply and drainage pipe 11. The ladle repair vehicle of this embodiment is constructed as described above.

次に本考案の作業車による取鍋補修作業を説明
する。まず補修すべき取鍋を所定の場所に横たえ
る。次に作業車を前方へ走行させて作業カプセル
を取鍋内に挿入する。次に予め位置を合せて開口
してある作業用開口に作業者が臨み必要な補修作
業を行なう。こうして水冷壁で保護された作業カ
プセル内で高熱にさらされることなく補修場所の
真近にいて入念な補修作業を行うことができる。 Next, ladle repair work using the work vehicle of the present invention will be explained. First, the ladle to be repaired is laid down in a designated place. Next, the work vehicle is driven forward and the work capsule is inserted into the ladle. Next, a worker faces the working opening that has been opened at the same position in advance and performs the necessary repair work. In this way, detailed repair work can be carried out in the working capsule, which is protected by a water-cooled wall, without being exposed to high heat and in close proximity to the repair site.

以上のとおり、本考案になる取鍋補修作業車は
取鍋補修作業の作業能率と作業精度を著しく向上
させ、更に取鍋耐火物やポーラスプラグの寿命向
上に大いに貢献するものである。 As described above, the ladle repair work vehicle according to the present invention significantly improves the efficiency and accuracy of ladle repair work, and also greatly contributes to extending the life of ladle refractories and porous plugs.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の取鍋補修作業車の
側面断面図で第２図のＢ−Ｂ矢視図、第２図は第
１図のＡ−Ａ矢視正面断面図である。 １：台車、３：カプセル取付用マスト、６：バ
ランスウエイト、７：補修作業カプセル、９：作
業用開口、１０：冷却水路。 Fig. 1 is a side cross-sectional view of a ladle repair vehicle according to an embodiment of the present invention, taken along the line B-B in Fig. 2, and Fig. 2 is a front cross-sectional view taken along the line A-A in Fig. 1. . 1: Trolley, 3: Mast for attaching the capsule, 6: Balance weight, 7: Repair work capsule, 9: Work opening, 10: Cooling water channel.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] レール上を走行する台車と該台車の前部に該台
車から前方へ、少なくとも取鍋の深さと同じ長さ
突き出すように取り付けた補修作業カプセルとか
ら主としてなり、該作業カプセルは全体が水冷さ
れており、且つその適切な箇所に作業用開口を設
けたことを特徴とする取鍋補修作業車。 It mainly consists of a truck that runs on rails and a repair work capsule attached to the front of the truck so as to protrude forward from the truck by at least the same length as the depth of the ladle, and the work capsule is entirely water-cooled. A ladle repair work vehicle characterized by having a cage and a work opening provided at an appropriate location.