JP2005240156A - Treating apparatus and its method at molten steel tapping time - Google Patents

Treating apparatus and its method at molten steel tapping time Download PDF

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JP2005240156A
JP2005240156A JP2004054756A JP2004054756A JP2005240156A JP 2005240156 A JP2005240156 A JP 2005240156A JP 2004054756 A JP2004054756 A JP 2004054756A JP 2004054756 A JP2004054756 A JP 2004054756A JP 2005240156 A JP2005240156 A JP 2005240156A
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converter
outflow prevention
steel
slag outflow
tilted
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Tomonori Kamiyama
朋典 神山
Hideo Fujimoto
英男 藤本
Minoru Sato
稔 佐藤
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INTOCAST JAPAN KK
JFE Steel Corp
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INTOCAST JAPAN KK
JFE Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To easily perform temperature-measuring sampling and the inserting work of a slag flowing-out preventive member and to easily and safely perform the maintenance and checking work of a temperature-measuring sampling device and a slag flowing-out preventive device. <P>SOLUTION: This apparatus is the one, in which the temperature-measuring sampling device 5 and the slag flowing-out preventive device 6 are mounted on a rail-transporting carriage 4 transported to the front part of a converter 1, and both devices 5, 6 can be changed in the inclining angle in the vertical direction, respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、転炉から溶鋼を出鋼する際の、測温サンプリング及びスラグ流出防止のための装置及び方法に関する。   The present invention relates to an apparatus and a method for temperature measurement sampling and slag outflow prevention when discharging molten steel from a converter.

一般に、鋼の精錬では、転炉での吹錬が終了すると、図６に示すように、まず、転炉５０を傾動させる前に、上側から炉内にサブランス５１を挿入し、当該サブランス５１の先端部に装着したプローブ５２を溶鋼中に浸漬させて、溶鋼の測温及びサンプリングを行っている。上記図６の装置では、転炉５０の設置階より上階に、転炉５０に向けてサブランス５１を昇降させる装置（不図示）が設置され、当該上階でサブランス５１の先端部にプローブ５２を装着した後、そのままサブランス５１を転炉５０内に下降させ、先端のプローブ５２を溶鋼中に浸漬させることで測温及びサンプリング（以下、測温サンプリングと呼ぶ）を行う。
そして、このような測温サンプリングによって精錬不良や終点温度範囲外れが無いことを確認したら、転炉５０を傾動させて出鋼を開始する。 In general, in steel refining, when blowing in the converter is completed, as shown in FIG. 6, first, before tilting the converter 50, the sublance 51 is inserted into the furnace from above, and the sublance 51 The probe 52 attached to the tip is immersed in the molten steel, and temperature measurement and sampling of the molten steel are performed. In the apparatus shown in FIG. 6, an apparatus (not shown) for raising and lowering the sublance 51 toward the converter 50 is installed above the floor where the converter 50 is installed. Then, the sublance 51 is lowered into the converter 50 as it is, and the probe 52 at the tip is immersed in the molten steel to perform temperature measurement and sampling (hereinafter referred to as temperature measurement sampling).
Then, when it is confirmed by such temperature measurement sampling that there is no refining failure and no end point temperature range, the converter 50 is tilted to start steel production.

また、特許文献１には、転炉５０を傾動させた場合の転炉５０の炉口と対向する位置に測温サンプリング装置５５を挿入する例（図７参照）が記載されている。
ここで、従来にあっては、出鋼のために転炉５０を傾動させた場合の転炉５０の炉口と対向する位置から、特許文献２に記載のようなスラグ流出防止装置６６が挿入される例もある（図８参照）。従来のスラグ流出防止装置は、上記傾動させた転炉５０の炉口に向けて進退方向にのみ移動可能に設計されていて、転炉５０からの出鋼の末期に、スラグ流出防止部材であるダーツを傾動させた転炉内の溶鋼中に挿入し、当該ダーツの先端部を出鋼孔に挿入することで、出鋼孔からのスラグの流出を防止する。 Patent Document 1 describes an example (see FIG. 7) in which a temperature measuring sampling device 55 is inserted at a position facing the furnace port of the converter 50 when the converter 50 is tilted.
Here, conventionally, a slag outflow prevention device 66 as described in Patent Document 2 is inserted from a position facing the furnace port of the converter 50 when the converter 50 is tilted for steel output. There is also an example (see FIG. 8). The conventional slag outflow prevention device is designed to be movable only in the advancing and retracting direction toward the tilted furnace port of the converter 50, and is a slag outflow prevention member at the final stage of steel output from the converter 50. By inserting the dart into the molten steel in the converter in which the dart is tilted and inserting the tip of the dart into the exit hole, the outflow of slag from the exit hole is prevented.

特許文献１に記載の測温サンプリング装置と特許文献２に記載のスラグ流出防止装置は、図７と図８を比較して分かるように似た構造をしている。
実開昭６２−４５１６９号公報 特開２００３−９６５１３号公報 The temperature measurement sampling device described in Patent Document 1 and the slag outflow prevention device described in Patent Document 2 have similar structures as can be seen by comparing FIG. 7 and FIG.
Japanese Utility Model Publication No. 62-45169 JP 2003-96513 A

最初に述べた測温サンプリングでは、測温サンプリングを行い精錬不良や終点温度範囲外れが無いことを確認してから、転炉５０を傾動させて出鋼を行うために、上記測温サンプリング時間（例えば３分程度）だけ転炉５０での処理時間が長くなってしまうという問題がある。この点、特許文献１に記載のような測温サンプリングによれば、転炉５０を傾動させて出鋼を行いつつ測温サンプリングが可能なため、一応の問題の解決にはなる。
しかしながら、特許文献２に記載のような、従来のスラグ流出防止装置が、転炉５０を傾動させた場合の転炉５０の炉口と対向する位置に設置されていると、転炉５０炉口の大きさの問題で、特許文献１に記載のような測温サンプリング装置までは並べて設置できない問題があった。 In the temperature measurement sampling described above, temperature measurement sampling is performed to confirm that there is no refining failure or out of the end point temperature range, and the temperature measurement sampling time ( For example, there is a problem that the processing time in the converter 50 becomes longer by about 3 minutes). In this regard, according to temperature measurement sampling as described in Patent Document 1, temperature measurement sampling is possible while tilting the converter 50 and performing steel output, so that the problem can be solved temporarily.
However, when a conventional slag outflow prevention device as described in Patent Document 2 is installed at a position facing the furnace port of the converter 50 when the converter 50 is tilted, the converter 50 furnace port There is a problem that the temperature measuring sampling apparatus as described in Patent Document 1 cannot be installed side by side.

また、従来の測温サンプリング装置５５及びスラグ流出防止装置６６は、転炉５０を傾動させた場合の転炉５０の炉口前に固定して設置され、当該炉口に面したまま進退するようになっているために、転炉５０で吹錬中は、溶鋼の飛沫が、転炉５０のインスペクションドア（後出図１参照）に設けられた測温サンプリング装置あるいはスラグ流出防止装置投入用ドア（これも後出図１参照）が故障して開放している場合はもちろん、閉止している場合でも、わずかな隙間から漏出する危険性があるため、転炉５０での吹錬中にこれら測温サンプリング装置やスラグ流出防止装置の保守点検作業を人が行うのは安全上問題があった。
本発明は、上記のような問題に着目してなされたもので、測温サンプリング装置とスラグ流出防止装置の挿入が容易にできると共にそれら装置の保守点検作業が安全に行えることを課題としている。 Further, the conventional temperature measurement sampling device 55 and the slag outflow prevention device 66 are fixedly installed in front of the furnace port of the converter 50 when the converter 50 is tilted, and advance and retreat while facing the furnace port. Therefore, during blowing in the converter 50, molten steel droplets are introduced into the temperature measurement sampling device or the slag outflow prevention device input door provided in the inspection door of the converter 50 (see FIG. 1 below). (This is also shown in Fig. 1 below). Of course, when there is a failure and when it is closed, there is a risk of leakage from a slight gap. It was a safety problem for humans to perform maintenance and inspection work on the temperature measurement sampling device and the slag outflow prevention device.
The present invention has been made paying attention to the above-described problems, and it is an object of the present invention to facilitate the insertion of the temperature measurement sampling device and the slag outflow prevention device and to perform maintenance and inspection work of these devices safely.

上記課題を解決するために、本発明のうち請求項１に記載の発明は、傾動させた転炉の炉口前方を横行する軌条走行台車に、測温サンプリング装置、及びスラグ流出防止装置が搭載されていることを特徴とする出鋼時処理装置を提供するものである。
次に、請求項２に記載した発明は、上記請求項１に記載した出鋼時処理装置を使用した、出鋼時処理方法であって、傾動させた上記転炉の炉口に対し測温サンプリング装置が対向する位置へ上記軌条走行台車を移動させて、測温サンプリングを行った後に、スラグ流出防止部材を上記転炉の出鋼孔に挿入できる位置へ上記軌条走行台車を移動させて、スラグ流出防止部材を、傾動させた上記転炉内に挿入することを特徴とするものである。 In order to solve the above-mentioned problem, the invention described in claim 1 of the present invention is equipped with a temperature measuring sampling device and a slag outflow prevention device on a rail traveling carriage that traverses the front of the furnace port of the tilted converter. It is intended to provide a processing apparatus at the time of steel output.
Next, the invention described in claim 2 is a method of processing at the time of steel output using the processing apparatus at the time of steel output described in claim 1, wherein the temperature is measured with respect to the tilted furnace port of the converter. After moving the rail traveling carriage to a position where the sampling device faces and performing temperature measurement sampling, the rail traveling carriage is moved to a position where the slag outflow prevention member can be inserted into the steel outlet hole of the converter, The slag outflow prevention member is inserted into the tilted converter.

本発明によれば、出鋼時間の短縮の効果を維持しつつ、測温サンプリング及びスラグ流出防止部材の挿入作業を容易に行える。
また、傾動させた転炉の炉口と対向しない位置に両装置を待避可能であるので、測温サンプリング装置やスラグ流出防止装置の保守点検作業も容易かつ安全に行える。 According to the present invention, it is possible to easily perform temperature measurement sampling and insertion of a slag outflow prevention member while maintaining the effect of shortening the steel output time.
In addition, since both devices can be retracted at a position that does not face the furnace port of the tilted converter, maintenance and inspection work of the temperature measuring sampling device and the slag outflow prevention device can be performed easily and safely.

次に、本発明の実施形態について図面を参照しつつ説明する。
図１に示す平面図のように、出鋼のために傾動させた状態の転炉１の炉口１ａの前方に、インスペクションドア２を挟んで出鋼時処理装置Ｔが設置されている。なお、上記インスペクションドア２には投入用ドア２ａが設けられている。その投入用ドア２ａは、上記転炉１を傾動させた場合の炉口１ａと対向する位置に配置されている。
上記出鋼時用処理装置Ｔは、２条の軌条３と、その軌条３に案内されて移動する軌条走行台車４と、その軌条走行台車４に支持される測温サンプリング装置５及びスラグ流出防止装置６とを備える。 Next, embodiments of the present invention will be described with reference to the drawings.
As shown in the plan view of FIG. 1, a steel tapping processing device T is installed in front of the furnace port 1a of the converter 1 in a state tilted for steel tapping, with an inspection door 2 interposed therebetween. The inspection door 2 is provided with a loading door 2a. The charging door 2a is disposed at a position facing the furnace port 1a when the converter 1 is tilted.
The steel processing unit T includes two rails 3, a rail traveling carriage 4 guided and moved by the rails 3, a temperature measurement sampling device 5 supported by the rail traveling carriage 4, and slag outflow prevention. Device 6.

上記軌条３は、天井に設けられ且つ平面図的に見て転炉１を傾動させた状態での中心軸Ａと直交する方向に水平に延びている。そして、上記軌条走行台車４は、その軌条３に案内されることで、転炉１を傾動させた場合の炉口１ａの前方を横行するようになっている。
上記軌条走行台車４は、上記２条の軌条３に支持されて当該軌条３に沿って移動する案内部４ａと、その案内部４ａに対し複数本の支柱４ｃを介して支持される台車本体４ｂとから構成される。上記案内部４ａは、不図示のモータを駆動制御することで、上記２条の軌条３に沿って移動して横行位置の位置決めができる。 The rail 3 is provided on the ceiling and extends horizontally in a direction orthogonal to the central axis A in a state where the converter 1 is tilted when viewed in plan view. The rail traveling carriage 4 is guided by the rail 3 so as to traverse the front of the furnace port 1a when the converter 1 is tilted.
The rail traveling carriage 4 is supported by the two rails 3 and moved along the rail 3, and the carriage body 4b supported by the guide 4a via a plurality of columns 4c. It consists of. The guide portion 4a can move along the two rails 3 to position the traversing position by driving and controlling a motor (not shown).

図２に示す側面図のように、上記スラグ流出防止装置６は、傾動させた状態の転炉１内に向けて伸縮可能な３段のアーム６ａ、６ｂ、６ｃを備え、そのアーム６ａ、６ｂ、６ｃの先端部には、掴み具６ｄを介してスラグ流出防止部材としてのダーツ７が取り付けられている。本実施形態では、上記３段のアーム６ａ、６ｂ、６ｃは、チェーン駆動によって伸縮する構造のものであるが、入れ子状の油圧シリンダ構造など、他の機構で伸縮可能としても良い。そのスラグ流出防止装置６は、後方にある支点Ｐ１を介して上記台車本体４ｂに対し上下方向に回動可能になっている。また、スラグ流出防止装置６の前方と上記軌条走行台車４の案内部４ａとが、油圧シリンダ８によって連結されている。そして、この油圧シリンダ８の油柱長を制御することで、スラグ流出防止装置６は、後方にある支点Ｐ１を介して下方に向けて所望の傾斜角に調整可能となっている。   As shown in the side view of FIG. 2, the slag outflow prevention device 6 includes three-stage arms 6 a, 6 b, 6 c that can be expanded and contracted into the tilted converter 1, and the arms 6 a, 6 b , 6c is attached with a dart 7 as a slag outflow prevention member via a gripping tool 6d. In the present embodiment, the three-stage arms 6a, 6b, and 6c have a structure that expands and contracts by chain drive, but may be extendable and contractable by other mechanisms such as a nested hydraulic cylinder structure. The slag outflow prevention device 6 is turnable in the vertical direction with respect to the cart body 4b via a fulcrum P1 located behind. Further, the front of the slag outflow prevention device 6 and the guide portion 4 a of the rail traveling carriage 4 are connected by a hydraulic cylinder 8. Then, by controlling the oil column length of the hydraulic cylinder 8, the slag outflow prevention device 6 can be adjusted to a desired inclination angle downward via a fulcrum P1 at the rear.

また、図３に示す側面図のように、上記測温サンプリング装置５は、上記スラグ流出防止装置６と平行な位置関係で上記軌条走行台車４に支持されている。この測温サンプリング装置５の基本構造も上記スラグ流出防止装置６と同様な構造となっている。すなわち、傾動させた状態の転炉１内に向けて伸縮可能な３段のアーム５ａ、５ｂ、５ｃを備え、そのアーム５ａ、５ｂ、５ｃの先端部に着脱可能なプローブ９が取り付けられている。本実施形態では、上記３段のアーム５ａ、５ｂ、５ｃは、チェーン駆動によって伸縮する構造であるが、入れ子状の油圧シリンダ構造など、他の機構で伸縮可能としても良い。その測温サンプリング装置５は、後方にある支点Ｐ２を介して、上記台車本体４ｂに対し上下方向に回動可能になっている。また、測温サンプリング装置５の前方と上記軌条走行台車４の案内部４ａとが、油圧シリンダ１０によって連結されている。そして、この油圧シリンダ１０の油柱長を制御することで、測温サンプリング装置５は、後方にある支点Ｐ２を介して下方に向けて所望の傾斜角に調整可能となっている。
以上、図２と図３を用いて説明したしくみによって、測温サンプリング装置５とスラグ流出防止装置６とは個別に傾斜可能となっている。 Further, as shown in the side view shown in FIG. 3, the temperature measuring sampling device 5 is supported by the rail traveling carriage 4 in a positional relationship parallel to the slag outflow prevention device 6. The basic structure of the temperature measuring sampling device 5 is the same as that of the slag outflow prevention device 6. That is, it is provided with three-stage arms 5a, 5b, and 5c that can be expanded and contracted into the tilted converter 1, and a detachable probe 9 is attached to the tip of the arms 5a, 5b, and 5c. . In the present embodiment, the three-stage arms 5a, 5b, and 5c have a structure that expands and contracts by chain drive, but may be extendable and contractable by other mechanisms such as a nested hydraulic cylinder structure. The temperature measuring sampling device 5 can be rotated in the vertical direction with respect to the cart body 4b via a fulcrum P2 at the rear. Further, the front of the temperature measuring sampling device 5 and the guide portion 4 a of the rail traveling carriage 4 are connected by a hydraulic cylinder 10. Then, by controlling the oil column length of the hydraulic cylinder 10, the temperature measuring sampling device 5 can be adjusted to a desired inclination angle downward via a fulcrum P2 at the rear.
As described above, the temperature measuring sampling device 5 and the slag outflow prevention device 6 can be individually inclined by the mechanism described with reference to FIGS.

次に、本実施形態による出鋼時処理装置Ｔの動作について説明する。
吹錬が終了すると、転炉１を傾動させて出鋼孔１ｂから溶鋼の出鋼を開始する。上記転炉１を傾動させるのに時期を同じくして若しくは前もって、図１に示す待機位置に待機していた軌条走行台車４を横行させ、傾動させた転炉１の炉口１ａに対し測温サンプリング装置５が対向する位置、例えば、測温サンプリング装置５の中心軸Ｂが転炉１の中心軸Ａと平面図的に見て重なる位置まで当該軌条走行台車４を横行させる。また、油圧シリンダ８によって、測温サンプリング装置５のアーム５ａ、５ｂ、５ｃの傾斜角αを、転炉１の炉口１ａから挿入されたときにプローブ９が溶鋼１１中に浸漬可能な傾斜角に調整しておく。 Next, operation | movement of the processing apparatus T at the time of steel output by this embodiment is demonstrated.
When the blowing is completed, the converter 1 is tilted to start the molten steel out of the steel outlet hole 1b. At the same time or in advance for tilting the converter 1, the rail traveling carriage 4 waiting at the standby position shown in FIG. 1 is traversed, and the temperature is measured with respect to the furnace port 1 a of the tilted converter 1. The rail traveling carriage 4 is traversed to a position where the sampling device 5 faces, for example, a position where the central axis B of the temperature measuring sampling device 5 overlaps with the central axis A of the converter 1 in a plan view. Further, the inclination angle α of the arms 5 a, 5 b, 5 c of the temperature measuring sampling device 5 can be immersed in the molten steel 11 by the hydraulic cylinder 8 when the inclination angle α is inserted from the furnace port 1 a of the converter 1. Adjust to.

次に、投入用ドア２ａを開口して、図４に示すように、測温サンプリング装置５のアーム５ａ、５ｂ、５ｃを伸長して、プローブ９を転炉１の炉口１ａから挿入し、上記プローブ９を溶鋼１１中に浸漬させることで測温すると共に溶鋼１１のサンプルを採取する。測温サンプリングが終了したらアーム５ａ、５ｂ、５ｃを収縮させて転炉１の外にプローブ９を戻す。
このとき、上記測温によって溶鋼１１の温度が、精錬の終点温度範囲外れであれば、溶鋼１１の出鋼を中止して、再精錬を行う。この場合、出鋼の早い段階で測温して判定しているので、既に出鋼済みの溶鋼の量を少なく抑えることができる。 Next, the charging door 2a is opened, and as shown in FIG. 4, the arms 5a, 5b, 5c of the temperature measuring sampling device 5 are extended, and the probe 9 is inserted from the furnace port 1a of the converter 1, Temperature is measured by immersing the probe 9 in the molten steel 11 and a sample of the molten steel 11 is taken. When the temperature measurement sampling is completed, the arms 5a, 5b, and 5c are contracted to return the probe 9 to the outside of the converter 1.
At this time, if the temperature of the molten steel 11 is out of the end temperature range of the refining by the temperature measurement, the steel out of the molten steel 11 is stopped and re-refining is performed. In this case, since the temperature is measured and determined at an early stage of steel output, the amount of molten steel that has already been output can be reduced.

一方、測温の結果、溶鋼１１の温度が終点温度範囲内であれば、軌条走行台車４を少しだけ横行させて、図５に示すように、スラグ流出防止装置６の中心軸Ｃを転炉１の中心軸Ａと平面図的に見て重なる位置に調整する。また、油圧シリンダ８によって、スラグ流出防止装置６のアーム６ａ、６ｂ、６ｃの傾斜角βを、転炉１の炉口１ａから挿入されたときに、スラグ流出防止装置６の先端に取り付けられたダーツ７がきれいに出鋼孔１ｂに挿入可能な傾斜角よりもある程度浅い傾斜角に調整しておく。   On the other hand, if the temperature of the molten steel 11 is within the end point temperature range as a result of the temperature measurement, the rail traveling carriage 4 is slightly moved laterally, and the central axis C of the slag outflow prevention device 6 is converted into a converter as shown in FIG. 1 is adjusted to a position overlapping with the central axis A in plan view. Further, when the inclination angle β of the arms 6a, 6b, 6c of the slag outflow prevention device 6 is inserted from the furnace port 1a of the converter 1 by the hydraulic cylinder 8, it is attached to the tip of the slag outflow prevention device 6. The dart 7 is adjusted to an inclination angle that is somewhat shallower than the inclination angle at which the dart 7 can be inserted into the steel outlet hole 1b cleanly.

そして、転炉１内の溶鋼１１が少なくなったら、図８に示すように、スラグ流出防止装置６のアーム６ａ、６ｂ、６ｃを伸長してダーツ７を転炉１の炉口１ａから挿入し、当該ダーツ７の先端部が出鋼孔１ｂに挿入予定の長さまで伸長された時点で伸長を停止し、しかる後、スラグ流出防止装置６のアーム６ａ、６ｂ、６ｃの傾斜角を大きくすることで、ダーツ７を出鋼孔１ｂに挿入完了し、出鋼孔１ｂから溶鋼１１とともにスラグが流出するのを抑制する。
もっとも、傾斜角βを大きくし、ダーツ７が溶鋼１１の表面に浮いた時点で、掴み具６ｄを緩めるだけで、溶鋼１１の表面に浮いているスラグと略同等の比重になるように作られたダーツ７は、出鋼孔１ｂから出鋼される溶鋼１１の流れに引き込まれ、出鋼が終了に近づくにつれ、自然に出鋼孔１ｂに挿入されているように作用する。 And when the molten steel 11 in the converter 1 decreases, as shown in FIG. 8, the arms 6a, 6b, 6c of the slag outflow prevention device 6 are extended and the dart 7 is inserted from the furnace port 1a of the converter 1. When the tip of the dart 7 is extended to the length to be inserted into the steel exit hole 1b, the extension is stopped, and then the inclination angles of the arms 6a, 6b, 6c of the slag outflow prevention device 6 are increased. Thus, the insertion of the dart 7 into the exit steel hole 1b is completed, and the slag is prevented from flowing out together with the molten steel 11 from the exit steel hole 1b.
However, when the inclination angle β is increased and the dart 7 floats on the surface of the molten steel 11, the specific gravity is substantially the same as that of the slag floating on the surface of the molten steel 11 simply by loosening the gripping tool 6 d. The dart 7 is drawn into the flow of the molten steel 11 drawn from the outgoing steel hole 1b, and acts as if it is naturally inserted into the outgoing steel hole 1b as the outgoing steel approaches the end.

出鋼が終了したら、アーム６ａ、６ｂ、６ｃの傾斜角を浅くしてダーツ７を出鋼孔１ｂから抜き、スラグ流出防止装置６のアーム６ａ、６ｂ、６ｃを収縮させて元の位置に復帰させた後に、軌条走行台車４をスラグ流出防止装置６及び測温サンプリング装置５が転炉１を傾動させた場合の炉口１ａに対向しない待機位置まで移動させた後に、プローブ９の取り替え、そして必要であればダーツ７の取り替えを行う。   When the steel output is completed, the dart 7 is removed from the steel output hole 1b by reducing the inclination angle of the arms 6a, 6b, 6c, and the arms 6a, 6b, 6c of the slag outflow prevention device 6 are contracted to return to the original positions. After moving the rail traveling carriage 4 to a standby position that does not face the furnace port 1a when the slag outflow prevention device 6 and the temperature measurement sampling device 5 tilt the converter 1, the probe 9 is replaced, and Replace darts 7 if necessary.

ここで、本実施形態では、アーム６ａ、６ｂ、６ｃの傾斜角を最初浅く、ダーツ７を出鋼孔１ｂに挿入するときには深くして炉口１ａなどとの干渉を避けて挿入が容易になるようにしている。
また、プローブ９やダーツ７の取り替え作業は、軌条走行台車４を待機位置まで走行させるだけで、転炉１と対向しない位置で行うことができる。よって、保守点検作業を人が安全に行うことができる。 Here, in this embodiment, the inclination angles of the arms 6a, 6b, 6c are initially shallow, and when the dart 7 is inserted into the steel exit hole 1b, the insertion is facilitated by avoiding interference with the furnace port 1a and the like. I am doing so.
In addition, the replacement work of the probe 9 and the dart 7 can be performed at a position that does not face the converter 1 only by running the rail traveling carriage 4 to the standby position. Therefore, a person can perform maintenance and inspection work safely.

実際の出鋼に要する時間は、５〜６分程度であるが、測温サンプリングには、通常２〜３分程度かかるため、測温サンプリング終了からダーツ７の挿入完了までの時間はさほど取れない。本実施形態は、この点、十秒乃至数十秒の短時間で装置５，６の入れ替えとダーツ７の挿入が可能である。これは、軌条走行台車４の位置を少し横行させるだけで、転炉１の炉口１ａの前方に位置する装置を、測温サンプリング装置５からスラグ流出防止装置６に切り替えることができるからである。   The time required for actual steelmaking is about 5 to 6 minutes, but since temperature measurement sampling usually takes about 2 to 3 minutes, the time from completion of temperature measurement sampling to completion of insertion of darts 7 cannot be taken much. . In this embodiment, the devices 5 and 6 can be replaced and the dart 7 can be inserted in a short time of 10 seconds to several tens of seconds. This is because the device located in front of the furnace port 1a of the converter 1 can be switched from the temperature measurement sampling device 5 to the slag outflow prevention device 6 by slightly traversing the position of the rail traveling carriage 4. .

また、軌条走行台車４を横行させて待機位置に移動させるだけで、出鋼時処理装置Ｔを、転炉１を傾動させた場合の炉口１ａに対向しない位置に移動できるので、プローブ９やダーツ７の取り替え作業のとき、あるいは他に、転炉１の補修のときも、出鋼時処理装置Ｔが邪魔になることは無い。また、出鋼時処理装置Ｔ自体の保守などについても、転炉１の前方から離れた待機位置で安全に行うことができる。   Moreover, since the rail-drawing processing device T can be moved to a position not facing the furnace port 1a when the converter 1 is tilted only by traversing the rail traveling carriage 4 and moving it to the standby position, the probe 9 or When the dart 7 is replaced, or when the converter 1 is repaired, the steel output processing device T does not get in the way. In addition, maintenance of the steel processing apparatus T itself can be performed safely at a standby position away from the front of the converter 1.

上記実施形態では、スラグ流出防止部材としてダーツ７を用いた場合を例に説明したが、鋼球など他の公知のスラグ流出防止部材を採用してもよい。
また、上記実施形態では、軌条走行台車４は、天井に沿って横行するようになっているが、床面などに設置した軌条に沿って横行するようにしても良い。 In the above embodiment, the case where the dart 7 is used as the slag outflow prevention member has been described as an example, but other known slag outflow prevention members such as steel balls may be employed.
Moreover, in the said embodiment, although the rail driving | running | working trolley 4 traverses along a ceiling, you may make it traverse along the rail installed in the floor surface.

本発明の実施形態の出鋼時処理装置を示す平面図である。It is a top view which shows the processing apparatus at the time of steel output of embodiment of this invention. 本発明の実施形態のスラグ流出防止装置を示す側面図である。It is a side view which shows the slag outflow prevention apparatus of embodiment of this invention. 本発明の実施形態の測温サンプリング装置を示す側面図である。It is a side view which shows the temperature measurement sampling apparatus of embodiment of this invention. 本発明の実施形態の測温サンプリング装置のプローブを傾動させた転炉内に挿入した状態を示す図である。It is a figure which shows the state inserted in the converter which tilted the probe of the temperature measurement sampling apparatus of embodiment of this invention. 本発明の実施形態のスラグ流出防止装置の中心軸が転炉の中心軸と平面図的に見て重なる位置まで軌条走行台車を横行させた状態を示す平面図である。It is a top view which shows the state which traversed the rail travel cart to the position where the center axis | shaft of the slag outflow prevention apparatus of embodiment of this invention overlaps with the center axis | shaft of a converter in plan view. 従来の測温サンプリングを説明する図である。It is a figure explaining the conventional temperature measurement sampling. 従来の測温サンプリングを説明する図である。It is a figure explaining the conventional temperature measurement sampling. 本発明の実施形態のスラグ流出防止装置を傾動させた転炉内に挿入した状態を示す図である。It is a figure which shows the state inserted in the converter which tilted the slag outflow prevention apparatus of embodiment of this invention.

符号の説明Explanation of symbols

Ｔ 出鋼時処理装置
１ 転炉
１ａ 炉口
１ｂ 出鋼孔
２ インスペクションドア
２ａ 投入用ドア
３ 軌条
４ 軌条走行台車
４ａ 案内部
４ｂ 台車本体
４ｃ 支柱
５ 測温サンプリング装置
５ａ、５ｂ、５ｃ アーム
６ スラグ流出防止装置
６ａ、６ｂ、６ｃ アーム
７ ダーツ（スラグ流出防止装置）
８ 油圧シリンダ
９ プローブ
１０ 油圧シリンダ
１１ 溶鋼 T Steel processing equipment 1 Converter 1a Furnace port 1b Steel hole 2 Inspection door 2a Loading door 3 Rail 4 Rail traveling cart 4a Guide 4b Cart body 4c Post 5 Temperature measuring sampling device 5a, 5b, 5c Arm 6 Slag Outflow prevention device 6a, 6b, 6c Arm 7 Dart (slag outflow prevention device)
8 Hydraulic cylinder 9 Probe
10 Hydraulic cylinder 11 Molten steel

Claims (2)

傾動させた転炉の炉口前方を横行する軌条走行台車に、測温サンプリング装置、及びスラグ流出防止装置が搭載されていることを特徴とする出鋼時処理装置。   A steelmaking time processing device, wherein a temperature measuring sampling device and a slag outflow prevention device are mounted on a rail traveling carriage traversing the front of the furnace port of a tilted converter. 上記請求項１に記載した出鋼時処理装置を使用した、出鋼時処理方法であって、傾動させた上記転炉の炉口に対し測温サンプリング装置が対向する位置へ上記軌条走行台車を移動させて、測温サンプリングを行った後に、スラグ流出防止部材を上記転炉の出鋼孔に挿入できる位置へ上記軌条走行台車を移動させて、スラグ流出防止部材を、傾動させた上記転炉内に挿入することを特徴とする出鋼時処理方法。   A method for processing a steelmaking process using the processing apparatus for steelmaking described in claim 1, wherein the rail traveling carriage is placed at a position where a temperature measuring sampling device faces a tilted furnace port of the converter. The converter in which the slag outflow prevention member is tilted by moving the rail traveling carriage to a position where the slag outflow prevention member can be inserted into the outlet hole of the converter after moving and measuring the temperature. A processing method at the time of steel extraction, characterized by being inserted into the steel.
JP2004054756A 2004-02-27 2004-02-27 Treating apparatus and its method at molten steel tapping time Pending JP2005240156A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110257585A (en) * 2019-06-17 2019-09-20 山东钢铁股份有限公司 Converter automatic temperature measurement sampler and its thermometric sampling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110257585A (en) * 2019-06-17 2019-09-20 山东钢铁股份有限公司 Converter automatic temperature measurement sampler and its thermometric sampling method
CN110257585B (en) * 2019-06-17 2021-11-02 山东钢铁股份有限公司 Automatic temperature measuring and sampling device and method for converter

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