JP5135569B2 - Ladle refining apparatus and ladle refining method - Google Patents

Ladle refining apparatus and ladle refining method Download PDF

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JP5135569B2
JP5135569B2 JP2007082556A JP2007082556A JP5135569B2 JP 5135569 B2 JP5135569 B2 JP 5135569B2 JP 2007082556 A JP2007082556 A JP 2007082556A JP 2007082556 A JP2007082556 A JP 2007082556A JP 5135569 B2 JP5135569 B2 JP 5135569B2
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ladle
trolley
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保 野村
長利 早川
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Daido Steel Co Ltd
Nippon Steel Corp
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Nippon Steel Corp
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Description

本発明は、取鍋精錬装置に関し、詳しくは取鍋内の浴鋼を加熱精錬する為の加熱装置を備え、上記加熱装置の下側に取鍋を位置させて、上記取鍋内の浴鋼を加熱精錬するようにしてある取鍋精錬装置及び取鍋精錬方法に関する。 The present invention relates to a ladle refining device, and more specifically, a heating device for heating and refining the bath steel in the ladle, the ladle being positioned below the heating device, and the bath steel in the ladle The present invention relates to a ladle refining apparatus and a ladle refining method that are adapted to heat refining.

従来より、取鍋精錬装置は広く知られている。例えば特許文献１には炉外精錬設備の簡易な装置として取鍋精錬装置が開示されている。
取鍋精錬装置においては、先ず製鋼炉、ア−ク電気炉などの精錬炉によって溶解精錬された溶鋼（浴鋼）、すなわち、溶融金属を取鍋に受け、その取鍋は、走行台車（取鍋台車）の上にのせられて走行し、炉蓋及び炉蓋に対して配列されている黒鉛電極列からなる取鍋内精錬装置の加熱装置の下側のところまで移動する。
取鍋が走行台車にのせられて炉蓋の下に達したときには、昇降自在の炉蓋が下降し、黒鉛電極列が取鍋内に挿入される。
黒鉛電極列は、炉蓋内を貫通し、炉蓋より上方にある上部の電極は炉蓋とは別に昇降自在に把持されている。
以上のような状態で、走行台車の上にのせられている取鍋内の溶融金属は、上記精錬装置によってア−ク（直流又は交流電力）で加熱され、取鍋は走行台車の上に乗せたまま、内部の浴鋼は加熱精錬されるようになっている（特許文献１参照）。 Conventionally, ladle refining equipment is widely known. For example, Patent Document 1 discloses a ladle refining device as a simple device for out-of-furnace refining equipment.
In a ladle refining device, first, molten steel (bath steel) melted and refined by a refining furnace such as a steelmaking furnace or an arc electric furnace, that is, a molten metal is received in a ladle. The ladle travels to the lower side of the heating device of the ladle refining device composed of the furnace lid and the graphite electrode array arranged with respect to the furnace lid.
When the ladle is placed on the traveling carriage and reaches the bottom of the furnace lid, the vertically movable furnace lid is lowered, and the graphite electrode array is inserted into the ladle.
The graphite electrode array penetrates the inside of the furnace lid, and the upper electrode located above the furnace lid is held so as to be movable up and down separately from the furnace lid.
In the state as described above, the molten metal in the ladle placed on the traveling carriage is heated with arc (DC or AC power) by the refining device, and the ladle is placed on the traveling carriage. The bath steel inside is heated and refined (see Patent Document 1).

上記の取鍋精錬装置にあっては、取鍋は走行台車の上に乗せられたまま、取鍋内の溶融金属は、ア−クで加熱精錬されるので、加熱精錬後は素早く台車を移動させることにより、溶融金属の入っている取鍋を次の工程に向けて移動させることのできる特長がある。   In the ladle refining equipment described above, the ladle is placed on the traveling carriage and the molten metal in the ladle is heated and refined by arc, so the carriage moves quickly after refining. By doing so, there is a feature that the ladle containing the molten metal can be moved toward the next process.

特開平１０−７２６１５号公報JP-A-10-72615

しかしながら、この従来の取鍋精錬装置では、取鍋と、取鍋を乗せた走行台車とは一対となって、不可分の関係になっており、取鍋内の溶融金属をア−クで加熱精錬している時間中は、取鍋を乗せた走行台車は、加熱精錬中の取鍋に独占される状態になり、走行台車の効率的な転用を妨げる問題点がある。この点の技術的事項に関しては、図５の従来技術の欄に描いた動線からも明らかなように、取鍋内の溶融金属をア−クで加熱精錬している時間中を含めて常に取鍋と走行台車は一体であり、加熱精錬に要するそのサイクルタイムは、本発明の場合に比較して著しく長時間を要している。
更にまた、取鍋精錬装置で所定の加熱精錬が行われた後、溶融金属の入っている取鍋を次段の処理工程に向かわせる場合は、その取鍋と一対となっている走行台車を利用せざるを得ないものであるから、走行台車は、最初の出発点からますます遠くに離れることになり、図５から明らかなように最初の出発点に戻るまでに長い時間が必要となる。従って取鍋精錬装置の稼働効率をますます低減させる問題点があった。 However, in this conventional ladle refining apparatus, the ladle and the traveling cart on which the ladle is placed are in an inseparable relationship, and the molten metal in the ladle is heated and refined with arc. During the running time, the traveling cart on which the ladle is placed becomes monopolized by the ladle being heated and refined, and there is a problem that hinders efficient diversion of the traveling cart. Regarding the technical matter in this respect, as is apparent from the flow line drawn in the column of the prior art in FIG. 5, always including the time during which the molten metal in the ladle is heated and refined by arc. The ladle and the traveling carriage are integrated, and the cycle time required for heating and refining takes a significantly longer time than in the case of the present invention.
Furthermore, when a ladle containing molten metal is directed to the next processing step after predetermined heating and refining in the ladle refining device, a traveling cart paired with the ladle is used. Since it must be used, the traveling carriage will move further away from the first starting point, and it will take a long time to return to the first starting point as is apparent from FIG. . Therefore, there has been a problem that the operating efficiency of the ladle refining apparatus is further reduced.

本件出願の目的は、取鍋精錬装置において、取鍋内の浴鋼を加熱精錬している過程において、取鍋を乗せて移動してきた取鍋台車を解放し、自由に利用することができるようにした取鍋精錬装置及び取鍋精錬方法を提供しようとするものである。
他の目的は、取鍋精錬装置において、取鍋内の浴鋼の加熱精錬完了時点において、前記取鍋を乗せて移動してきた取鍋台車とは別の第二の取鍋台車でもって、上記加熱精錬完了後の取鍋を持ち去ることのできるようにした取鍋精錬装置及び取鍋精錬方法を提供しようとするものである。
他の目的及び利点は図面及びそれに関連した以下の説明により容易に明らかになるであろう。 The purpose of this application is to release the ladle cart that has been moved with the ladle in the process of heating and refining the bath steel in the ladle in the ladle refining device so that it can be used freely. An object is to provide a ladle refining apparatus and a ladle refining method .
Another object is to use the second ladle trolley different from the ladle trolley that has moved with the ladle at the time of completion of heating and refining the bath steel in the ladle, It is an object of the present invention to provide a ladle refining apparatus and a ladle refining method that can take away a ladle after completion of heating and refining.
Other objects and advantages will be readily apparent from the drawings and the following description associated therewith.

本発明における取鍋精錬装置は、
取鍋６に対して蓋着する為の炉蓋１１には取鍋６内の浴鋼を加熱する為の電極１２を備えさせ、
一方、上記炉蓋１１の下側には、取鍋台車５に乗載した取鍋６の出入りが可能な空間１４を備え、
上記炉蓋１１の下側に対して、上記取鍋６を取鍋預かり機構１６の受取部材２２で上動させた状態で位置させ、かつ、上記炉蓋１１を蓋着し、上記電極１２に電力を供給して取鍋６内の浴鋼を加熱精錬するようにしてある取鍋精錬装置において、
上記取鍋台車５に乗載した取鍋６の出入り可能な空間１４の下側には、取鍋６を受け取る為の受取部材２２と、上記受取部材２２を支えて上下動する支持手段１８とを備えている取鍋預かり機構１６を設置し、
一方、上記空間１４の周囲には、取鍋台車５に乗載した取鍋６の出入りが可能な上記空間１４に向けて、夫々第１の取鍋台車５aと第２の取鍋台車５bの進退を可能にする少なくても二本の第１の通路４bと、第２の通路4cとを備えさせると共に、それらの第１の通路４bと、第２の通路４cには、夫々上記空間１４に向けて個別に往復動を自在にする第１の取鍋台車５aと、第２の取鍋台車５bを配し、
上記夫々の第１の取鍋台車５aと、第２の取鍋台車５bにおける各取鍋乗載領域２８には、上記取鍋預かり機構１６における受取部材２２の上下動を許容するための透孔２９を備えさせ、
さらに、上記夫々の第１の取鍋台車５aと、第２の取鍋台車５bとの各透孔２９の進行側の側方には、
上記の上動させた状態にある取鍋預かり機構１６における受取部材２２又は支持手段１８が透孔２９に対し、側方から出入り可能にする為の欠如部３０を夫々備えさせ、
上記取鍋預かり機構１６における受取部材２２によって取鍋６を受け取っている状態で、上記取鍋６の下方には上記第１の通路４bに配された第１の取鍋台車５aと、第２の通路4cに配された第２の取鍋台車５bとが、夫々個別に、進退自在で、かつ、第１の通路4bと、第２の通路4cとを夫々側方に向けて取鍋預かり機構１６から離れる方向に自由な移動を可能にしてある。 The ladle refining apparatus in the present invention,
A furnace lid 11 for covering the ladle 6 is provided with an electrode 12 for heating the bath steel in the ladle 6;
On the other hand, the lower side of the furnace lid 11 includes a space 14 in which the ladle 6 mounted on the ladle cart 5 can enter and exit,
Against the underside of the furnace cover 11, it is positioned in a state that is moved upward by the receiving member 22 of the mechanism 16 deposits ladle the ladle 6 and the furnace lid 11 and Futagi, to the electrode 12 In a ladle refining device that supplies electric power and heats and refines the bath steel in the ladle 6,
Below the space 14 where the ladle 6 mounted on the ladle cart 5 can enter and exit, a receiving member 22 for receiving the ladle 6 and a support means 18 for supporting the receiving member 22 and moving up and down. Installed ladle storage mechanism 16 equipped with
On the other hand, around the space 14, the first ladle trolley 5 a and the second ladle trolley 5 b are respectively directed toward the space 14 where the ladle 6 mounted on the ladle trolley 5 can enter and exit . and fewer or the two first passage 4b to allow forward and backward, with causing a second passage 4c, and their first passage 4b, the second passage 4c, respectively the space 14 a first ladle carriage 5a to freely reciprocate individually towards the second ladle truck 5b arranged,
A through hole for allowing the receiving member 22 in the ladle storage mechanism 16 to move up and down in each ladle mounting region 28 in each of the first ladle cart 5a and the second ladle cart 5b . 29 ,
Furthermore, on the lateral side of each through hole 29 of each of the first ladle trolley 5a and the second ladle trolley 5b,
To receiver member 22 or supporting means 18 through hole 29 in the mechanism 16 Luggage ladle is in a state of being above the upward movement, the lack portion 30 for enabling out from the side respectively allowed comprising,
In a state where the ladle 6 is received by the receiving member 22 in the ladle storage mechanism 16, a first ladle cart 5 a disposed in the first passage 4 b and a second ladle are disposed below the ladle 6 . The second ladle trolley 5b arranged in the passage 4c is individually movable forward and backward, and the ladle storage is performed with the first passage 4b and the second passage 4c directed to the sides. Free movement in a direction away from the mechanism 16 is possible .

また好ましくは、本発明の取鍋精錬方法は、Also preferably, the ladle refining method of the present invention,
取鍋６に対して蓋着する為の炉蓋１１には取鍋６内の浴鋼を加熱する為の電極１２を備えさせ、  A furnace lid 11 for covering the ladle 6 is provided with an electrode 12 for heating the bath steel in the ladle 6;
一方、上記炉蓋１１の下側には、取鍋台車５に乗載した取鍋６の出入りが可能な空間１４を備え、  On the other hand, the lower side of the furnace lid 11 includes a space 14 in which the ladle 6 mounted on the ladle cart 5 can enter and exit,
上記炉蓋１１の下側に対して、上記取鍋６を取鍋預かり機構１６の受取部材２２で上動させた状態で位置させ、かつ、上記炉蓋１１を蓋着し、上記電極１２に電力を供給して取鍋６内の浴鋼を加熱精錬するようにしてある取鍋精錬方法において、    The ladle 6 is positioned in a state where the ladle 6 is moved up by the receiving member 22 of the ladle storage mechanism 16 with respect to the lower side of the furnace lid 11, and the furnace lid 11 is attached to the electrode 12. In the ladle refining method in which electric power is supplied and the bath steel in the ladle 6 is heated and refined,
上記取鍋台車５に乗載した取鍋６の出入り可能な空間１４の下側には、取鍋６を受け取る為の受取部材２２と、上記受取部材２２を支えて上下動する支持手段１８とを備えている取鍋預かり機構１６を設置しておき、  Below the space 14 where the ladle 6 mounted on the ladle cart 5 can enter and exit, a receiving member 22 for receiving the ladle 6 and a support means 18 for supporting the receiving member 22 and moving up and down. A ladle storage mechanism 16 equipped with
一方、上記空間１４の周囲には、取鍋台車５に乗載した取鍋６の出入りが可能な空間１４に向けて、夫々取鍋台車５の進退を可能にする少なくても二本の第１の通路４bと、第２の通路4cとを備えさせると共に、それらの第１の通路４bと、第２の通路４cには、夫々上記空間１４に向けて個別に往復動を自在にする第１の取鍋台車５aと、第２の取鍋台車５bを配しておき、  On the other hand, around the space 14, there are at least two second trolleys that allow the ladle trolley 5 to advance and retreat toward the space 14 in which the ladle 6 mounted on the ladle trolley 5 can enter and exit. The first passage 4b and the second passage 4c are provided, and the first passage 4b and the second passage 4c are individually reciprocated toward the space 14, respectively. 1 ladle cart 5a and 2nd ladle cart 5b
上記夫々の第１の取鍋台車５aと、第２の取鍋台車５bにおける各取鍋乗載領域２８には、上記取鍋預かり機構１６における受取部材２２の上下動を許容するための透孔２９を備えさせ、  A through hole for allowing the receiving member 22 in the ladle storage mechanism 16 to move up and down in each ladle mounting region 28 in each of the first ladle cart 5a and the second ladle cart 5b. 29,
さらに、上記夫々の第１の取鍋台車５aと、第２の取鍋台車５bとの各透孔２９の進行側の側方には、  Furthermore, on the lateral side of each through hole 29 of each of the first ladle trolley 5a and the second ladle trolley 5b,
上記の上動させた状態にある取鍋預かり機構における受取部材２２又は支持手段１８が透孔２９に対し、側方から出入り可能にする為の欠如部３０を夫々備えさせておき、  The receiving member 22 or the support means 18 in the ladle storage mechanism in the above-described upwardly moving state is provided with a lacking portion 30 for allowing the through hole 29 to enter and exit from the side, respectively.
加熱精錬においては、 第１の取鍋台車5aの上に浴鋼を収納している取鍋６を乗せ、第１の取鍋台車5aの進行側に備える欠如部を前にして第１の通路4bを通って上記空間１４内に第１の取鍋台車5aを入れ、   In the heating and refining, the ladle 6 containing the bath steel is placed on the first ladle trolley 5a, and the first passage in front of the missing portion provided on the traveling side of the first ladle trolley 5a. Put the first ladle cart 5a in the space 14 through 4b,
取鍋預かり機構１６の支持手段１８及び受取部材２２を上昇させて、取鍋６を上昇させ、炉蓋１１を蓋着し、電極１２に電力を供給して取鍋６内の浴鋼を加熱精錬処理を行い、この間、上記第１の取鍋台車5aは上記空間１４から抜け、第１の通路4bを通って側方に向けて自由に運用させ、  The support means 18 and the receiving member 22 of the ladle storage mechanism 16 are raised, the ladle 6 is raised, the furnace lid 11 is covered, power is supplied to the electrode 12, and the bath steel in the ladle 6 is heated. During the refining process, the first ladle trolley 5a passes through the space 14 and is freely operated sideways through the first passage 4b.
上記加熱精錬処理完了後は、既に上記空間１４から第１取鍋台車5aが抜けているので第２の取鍋台車5aの進行側に備える欠如部を前にして第２の通路4cを通って上記空間１４内に第２の取鍋台車5bを入れ、取鍋預かり機構１６の支持手段１８及び受取部材２２を下降させ、取鍋６を第２取鍋台車5bの上に乗せ、第２取鍋台車5bを第２の通路4cにバックさせ、第２の通路4cに添って横方向に向けて移動させ、取鍋６を次段へ運ぶようにしたものである。  After completion of the heating and refining process, the first ladle trolley 5a has already come out of the space 14, so that the missing portion provided on the traveling side of the second ladle trolley 5a passes through the second passage 4c. The second ladle trolley 5b is placed in the space 14, the support means 18 and the receiving member 22 of the ladle storage mechanism 16 are lowered, and the ladle 6 is placed on the second ladle trolley 5b. The pan cart 5b is moved back to the second passage 4c, moved laterally along the second passage 4c, and the ladle 6 is transported to the next stage.

以上のように本発明は、炉蓋１１の下側に備えさせた取鍋存置用の空間１４の下方に取鍋預かり機構１６を備えさせ、その取鍋預かり機構１６に向けて上記空間１４の一側方から取鍋６を取鍋台車５aに乗せて持ち込み、取鍋６は取鍋預かり機構１６に移乗させるような形で預け、取鍋台車５aは空の状態で引き返すことができるので、上記取鍋預かり機構１６の上方において取鍋６内の溶融金属が加熱精錬されている時間帯においても上記の引き返していった取鍋台車５aは自由に運用することができ、次の加熱精錬に向けての準備が可能になる特長がある。これにより加熱精錬の稼働率の向上を図る上において効果がある。

さらに、加熱精錬完了時点においては、上記一側方から取鍋６を持ち込んだ第１の取鍋台車５aとは異なる第２の取鍋台車５bが、上記一側方とは異なる他の側から取鍋預かり機構１６に向けて入り、加熱精錬完了の取鍋６を持ち出すことができるので、上記炉蓋１１の下側に位置する空間１４に対しては、直ちに上記一側方から第１の取鍋台車５aに乗せた取鍋６を進入させ、極めて短時間で次の加熱精錬作業に入ることができる特長があり、この面からも加熱精錬の稼働率の向上を図ることの出来る効果がある。
As described above, according to the present invention, the ladle storage mechanism 16 is provided below the ladle storage space 14 provided on the lower side of the furnace lid 11, and the space 14 is moved toward the ladle storage mechanism 16. Since the ladle 6 can be carried on the ladle cart 5a from one side, the ladle 6 can be transferred to the ladle storage mechanism 16, and the ladle cart 5a can be turned back in an empty state. The ladle trolley 5a that has been turned back can be freely operated even during the time zone in which the molten metal in the ladle 6 is heated and refined above the ladle storage mechanism 16 for the next heating and refining. There is a feature that makes it possible to prepare for. This is effective in improving the operating rate of heat refining.

Furthermore, at the time of completion of heating and refining, the second ladle trolley 5b different from the first ladle trolley 5a brought in the ladle 6 from the one side is from the other side different from the one side. Since the ladle 6 that enters the ladle storage mechanism 16 and that has been heated and refined can be taken out, the space 14 located below the furnace lid 11 is immediately subjected to the first from the one side. The ladle 6 placed on the ladle trolley 5a can enter and the next heating and refining work can be started in a very short time. From this aspect, the effect of improving the operating rate of the heating and refining can be achieved. is there.

以下本発明の実施の形態を図面を用いて説明する。図１は、炉外精錬設備における取鍋精錬装置と真空脱ガス設備（ＲＨ）との位置関係を示す平面図で、（A）は取鍋台車５のない状態、（B）は取鍋台車５を配置した状態を示す。図２の（A）と（B）は炉外精錬設備における取鍋精錬装置と、真空脱ガス設備と、取鍋台車５と、取鍋６との位置関係を説明するための正面概要図。図３の（A）と（B）は、取鍋預かり機構１６と、取鍋台車５と、取鍋６との位置関係を説明するための一部破断正面図。図４の（A）と（B）は、取鍋台車５に対して取鍋６を乗せる前と、乗せた後との関係位置を説明するための平面図。（C）図は、（B）図の右側から見た正面図であって、取鍋台車５と、取鍋６と、取鍋預かり機構１６の関係を説明するための正面図である。図５は、従来例と、本件実施例との取鍋台車５と、取鍋精錬装置２と、真空脱ガス設備との関係を説明するためのサイクルタイム表を示す。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view showing a positional relationship between a ladle refining device and a vacuum degassing facility (RH) in an out-of-furnace refining facility, where (A) is a state without a ladle cart 5 and (B) is a ladle cart. The state where 5 is arranged is shown. FIGS. 2A and 2B are schematic front views for explaining the positional relationship among a ladle refining apparatus, a vacuum degassing facility, a ladle carriage 5 and a ladle 6 in an out-of-core refining facility. FIGS. 3A and 3B are partially broken front views for explaining the positional relationship among the ladle storage mechanism 16, the ladle cart 5, and the ladle 6. FIGS. 4A and 4B are plan views for explaining the relational positions before and after placing the ladle 6 on the ladle cart 5. (C) The figure is the front view seen from the right side of (B) figure, Comprising: It is a front view for demonstrating the relationship between the ladle trolley 5, the ladle 6, and the ladle custody mechanism 16. FIG. FIG. 5 shows a cycle time table for explaining the relationship between the ladle cart 5, the ladle refining device 2, and the vacuum degassing equipment in the conventional example and the present embodiment.

図１〜図４において、１は炉外精錬設備の設置場所を示し、極めて限られた狭い場所に取鍋精錬装置（以下単にＬＦともいう）２と、二次精錬炉としての真空脱ガス設備（ＲＨ）３が設置されている例を示す。４は取鍋移動経路を示す。
取鍋精錬装置２にあっては、周知のように取鍋６に対して蓋着する為の炉蓋１１に対して取鍋６内の浴鋼を加熱する為の電極１２を備えさせて加熱装置１０を構成している（図２参照）。一方、上記炉蓋１１の下側には、図２に示されるように取鍋台車５に乗載した取鍋６の出入りが可能な空間１４を備えている。そして上記炉蓋１１の下側空間１４に対して取鍋６を位置させ、上記取鍋６に対して図示のように上記炉蓋１１を蓋着し、上記電極１２に電力を供給して取鍋６内の浴鋼を加熱精錬するようにしてある。 1 to 4, reference numeral 1 denotes an installation place of the outside refining equipment, and a ladle refining device (hereinafter also simply referred to as LF) 2 and a vacuum degassing equipment as a secondary refining furnace in a very limited narrow place. An example in which (RH) 3 is installed is shown. 4 shows the ladle movement route.
In the ladle refining apparatus 2, as is well known, an electrode 12 for heating the bath steel in the ladle 6 is provided to a furnace lid 11 for covering the ladle 6. The apparatus 10 is comprised (refer FIG. 2). On the other hand, a space 14 in which the ladle 6 mounted on the ladle cart 5 can enter and exit is provided below the furnace lid 11 as shown in FIG. Then, the ladle 6 is positioned with respect to the lower space 14 of the furnace lid 11, the furnace lid 11 is covered with the ladle 6 as shown in the figure, and power is supplied to the electrode 12 to take the ladle 6. The bath steel in the pan 6 is heated and refined.

図２、３に示される取鍋預かり機構１６は図示のように取鍋台車５に乗載した取鍋６の出入り可能な空間１４の下側に備えさせてある。取鍋預かり機構１６は取鍋６を受け取る為の受取部材２２と、上記受取部材２２を支えて上下動する支持手段１８とを備えている。
上記取鍋預かり機構１６の上部に存在させた上記空間１４の周囲には、空間１４に対して、夫々取鍋台車５の選択的な進退を可能にする複数の通路４（少なくても二本の通路４b、４c）を備えさせると共に、それらの通路４には夫々空間１４に向けて往復動を自在に取鍋台車５a、５bを配置している。 The ladle storage mechanism 16 shown in FIGS. 2 and 3 is provided below the space 14 in which the ladle 6 mounted on the ladle cart 5 can enter and exit as shown in the figure. The ladle storage mechanism 16 includes a receiving member 22 for receiving the ladle 6 and support means 18 that moves up and down while supporting the receiving member 22.
Around the space 14 existing above the ladle storage mechanism 16, there are a plurality of passages 4 (at least two) that allow the ladle cart 5 to selectively move back and forth with respect to the space 14. The ladle carts 5a and 5b are arranged in the passages 4 so as to freely reciprocate toward the space 14, respectively.

取鍋預かり機構１６にあっては、作業面（GL）より下がった位置に、図２、３に示されるように機構１６を設置する場所として深い穴（ピット）１７を設け、そこに取鍋預かり機構１６を設置している。機構１６において１８は取鍋６を支持する為の支持手段を示し、鋼材等の硬質材で頑丈に構成された基枠１９を上下動自在に設置することによって構成されている。２０は基枠１９の横揺れが生じないように設けたガイド手段を示し、例えばガイドローラー、ガイドレール、或いは摺擦面など、基枠１９との対向面との相対関係に対応させ、周知の頑丈な案内手段で構成されている。
２１は基枠１９を上下動させるための周知任意の構成による上下駆動装置を示し、例えば周知のようにピットの底部に基部を設置し、上方可動部を基枠１９に装着して構成された油圧駆動装置を示す。２２は基枠１９の上部に装着してある鋼材などの硬質材で構成されたテーブル状の受取部材、２３は受取部材の一部を構成する受取部で、その上側に取鍋６の底部材４０を乗せることができるようにしてある。 In the ladle storage mechanism 16, a deep hole (pit) 17 is provided at a position lower than the work surface (GL) as a place for installing the mechanism 16 as shown in FIGS. A custody mechanism 16 is installed. In the mechanism 16, reference numeral 18 denotes a support means for supporting the ladle 6 and is configured by installing a base frame 19 that is made of a hard material such as steel and is movably moved up and down. Reference numeral 20 denotes a guide means provided so as not to cause the base frame 19 to roll. The guide means 20 corresponds to the relative relationship with the surface facing the base frame 19 such as a guide roller, a guide rail, or a rubbing surface. Consists of sturdy guide means.
Reference numeral 21 denotes a vertical drive device having a known arbitrary configuration for moving the base frame 19 up and down. For example, as is well known, the base is installed at the bottom of the pit and the upper movable part is mounted on the base frame 19. 1 shows a hydraulic drive device. 22 is a table-shaped receiving member made of a hard material such as steel mounted on the upper portion of the base frame 19, and 23 is a receiving portion that constitutes a part of the receiving member. 40 can be carried.

取鍋台車５においては、取鍋６を乗せて移動する必要があるため、上側に図４に示されるような取鍋乗載領域２８が設けられている。この取鍋乗載領域２８に対しては図４（B）、（C） に示されるような取鍋台車５と取鍋６との相対関係で取鍋６を乗せることができるようにしてある。
更に、取鍋台車５における取鍋乗載領域２８の下方には、上記取鍋預かり機構１６における受取部材２２の上下動を許容するための透孔２９（図４（C）参照）と、その透孔２９を通して上昇した取鍋預かり機構における受取部材２２又は支持手段１８（基枠１９）が側方へ脱出可能にする為に、 少なくとも脱出可能な大きさの対応形状寸法を備える（又はそれよりも大きい形状寸法を備える）欠如部３０（切り欠け部分）を上記透孔２９の側方に備えさせてある。 図４に現れるように欠如部３０が存在すると、図３から明らかなように上記取鍋預かり機構１６における受取部材２２によって取鍋６を受け取っている状態（受取部材２２の上に取鍋６が乗せられている状態）で、上記取鍋６の下方に取鍋台車５を自由に出したり、入れたり自在に出来る。 In the ladle trolley 5, since the ladle 6 needs to be moved, a ladle mounting region 28 as shown in FIG. 4 is provided on the upper side. The ladle 6 can be placed in the ladle mounting area 28 in a relative relationship between the ladle cart 5 and the ladle 6 as shown in FIGS. 4 (B) and 4 (C). .
Furthermore, below the ladle loading area 28 in the ladle cart 5, there is a through hole 29 (see FIG. 4C) for allowing the receiving member 22 to move up and down in the ladle storage mechanism 16. In order to allow the receiving member 22 or the support means 18 (base frame 19) in the ladle storage mechanism elevated through the through-hole 29 to escape to the side, it has at least a corresponding shape dimension that allows it to escape (or more). The missing portion 30 (notched portion) having a larger shape dimension is provided on the side of the through hole 29. As shown in FIG. 4, when the missing portion 30 exists, the ladle 6 is received by the receiving member 22 in the ladle storage mechanism 16 as is clear from FIG. 3 (the ladle 6 is placed on the receiving member 22. The ladle trolley 5 can be taken out and put freely below the ladle 6 in a state where the ladle is placed).

取鍋台車５にあって、２５は周知のように鋼材等の硬質材で頑丈に構成された台枠を示し、２６は任意必要な数だけ設けられた車輪で、上記取鍋台車用の取鍋移動経路４として図1に例示した通路（4a〜4f）の構成に対応させた構成にしてある。例えば上記通路がレールの場合は、それに対応した構成の車輪である。２７は必要に応じて設けられる周知の駆動装置と制御部が収まっているケースの存在を示し、図においては、進退往復動自在である取鍋台車５の後部側と称される部分に備えさせてある。前述した取鍋乗載領域２８において、２９は受取部材２２を受け入れるための透孔（凹部であればよい）で、上死点に位置する受取部材２２の外形形状に対応して、収容可能な大きさにしてあれば良い。３０は前述した脱出用欠如部で、これも上死点に位置する受取部材２２（又は基枠１９）の外形形状に対応して、矢印５４方向へ相対的に脱出できる大きさであればよい。   In the ladle trolley 5, reference numeral 25 indicates a pedestal frame that is firmly constructed of a hard material such as steel as is well known, and 26 is a wheel provided in an arbitrary number as required, and is used for the ladle trolley. The pan movement path 4 has a configuration corresponding to the configuration of the passages (4a to 4f) illustrated in FIG. For example, when the passage is a rail, it is a wheel having a configuration corresponding to the rail. 27 shows the presence of a case in which a well-known drive unit and a control unit provided as necessary are accommodated. In the figure, the case is provided in a portion called the rear side of the ladle cart 5 that can freely move back and forth. It is. In the ladle mounting region 28 described above, 29 is a through hole (which may be a recess) for receiving the receiving member 22 and can be accommodated corresponding to the outer shape of the receiving member 22 located at the top dead center. It only needs to be large. Reference numeral 30 denotes the aforementioned escape missing portion, which also has a size corresponding to the outer shape of the receiving member 22 (or the base frame 19) located at the top dead center so that it can relatively escape in the direction of the arrow 54. .

取鍋台車５にあって、上記取鍋乗載領域２８に設けられている取鍋支承部材３２（図３、図４参照）は、取鍋６を支える為に鋼材等の硬質材で頑丈に構成されたもので、詳しくは取鍋６の周囲に対して一体的に構成される膨出状の補強部材４１の下縁（当て座４３）を両側から安定した状態で支える為に、取鍋台車５に対して図示のように相互に対向させる状態で付設されたものである。３４は、取鍋６における補強部材４１の下縁（当て座４３）に係合させるための先端部（係合部）を示す。係合部３４の高は、図３（A）（B）から明らかなように、図３（A）の基枠１９が下降した状態では係合部３４が当て座４３に係合し、図３（B）の基枠１９が上昇した状態では係合部３４が、当て座４３から大きく離反し、取鍋台車５が矢印５４方向に自由に出入りできるような寸法に定めてある。   In the ladle cart 5, the ladle support member 32 (see FIGS. 3 and 4) provided in the ladle mounting region 28 is made of a hard material such as a steel material to support the ladle 6. Specifically, in order to support the lower edge (seat seat 43) of the bulging reinforcing member 41 integrally formed around the ladle 6 in a stable state from both sides, the ladle As shown in the figure, they are attached to the cart 5 in a state of facing each other. Reference numeral 34 denotes a front end portion (engagement portion) for engaging with the lower edge (the seat 43) of the reinforcing member 41 in the ladle 6. As apparent from FIGS. 3A and 3B, the height of the engaging portion 34 is such that the engaging portion 34 engages with the abutment seat 43 when the base frame 19 in FIG. 3A is lowered. In the state in which the base frame 19 of 3 (B) is raised, the engaging portion 34 is largely separated from the abutment seat 43, and the dimensions are set such that the ladle cart 5 can freely enter and exit in the direction of the arrow 54.

取鍋６は周知の構成であって、３８は内側の浴鋼収納空間、３９は周壁、４０は底部材、４１は周壁３９の周囲に構成されているベルト状の補強部材、４２は取鍋６をクレーンで吊り上げをあげる場合に用いる為に取鍋６の両側に突設状態で備えさせたフック掛け、４３は上記ベルト状の補強部材４１の下側の段部を利用した当て座部を示す。   The ladle 6 has a well-known configuration, 38 is an inner bath steel storage space, 39 is a peripheral wall, 40 is a bottom member, 41 is a belt-shaped reinforcing member formed around the peripheral wall 39, and 42 is a ladle. 6 is a hook hook provided in a projecting state on both sides of the ladle 6 for use in lifting the crane with a crane, and 43 is a seat using a stepped portion on the lower side of the belt-like reinforcing member 41. Show.

二次精錬炉としての真空脱ガス設備（ＲＨ）３は周知の構成に基づくものの存在を示す。図において４８は 真空槽、４９a は上昇側浸漬管、４９b は下降側浸漬管の存在を夫々示す。
次に図１、図２に表れている取鍋台車用の取鍋移動経路４について説明する。この経路４は取鍋６の移動経路を表している。通路（4a〜4f）は取鍋台車５を通すための経路である。4aはターンテーブルを示し、第１取鍋台車5aはこの上において、クレーンから浴鋼の入った取鍋６を受け取る。第１取鍋台車5aは９０度向きを変えて通路4bを通って「ＬＦ」に向かう。 The vacuum degassing equipment (RH) 3 as a secondary smelting furnace indicates the existence of one based on a well-known configuration. In the figure, 48 indicates a vacuum chamber, 49a indicates an ascending side dip tube, and 49b indicates the presence of a descending side dip tube.
Next, the ladle moving path 4 for the ladle cart shown in FIGS. 1 and 2 will be described. This route 4 represents the moving route of the ladle 6. The passages (4 a to 4 f) are paths for passing the ladle cart 5. 4a shows a turntable and the 1st ladle cart 5a receives the ladle 6 with the bath steel from a crane on it. The first ladle cart 5a turns 90 degrees and passes through the passage 4b toward "LF".

上記構成のものについて実施状況を説明する。
まず図１、図２に表れている取鍋台車用の取鍋移動経路４の内、第１の取鍋台車5aはターンテーブル4aの上に位置しているものとする。例えば精錬炉等によって溶解精錬された浴鋼が収納されている取鍋６はクレーン（図示外）で第１取鍋台車5aの上に運ばれ、図４（B）（C）の状態に乗せられる。取鍋６はターンテーブル4aの上で向きを９０度変更して、第１の通路4bを通って図１（B）のように取鍋台車5aの進行側に備える欠如部３０を前にして「ＬＦ」に向かう（図５の符号６０で示される動線参照）。「ＬＦ」においては前述したように、空間１４が空いているので、第１取鍋台車5aは図３（A）、図４（C）の状態に「ＬＦ」内に入り込む。次に取鍋預かり機構１６の支持手段１８及び受取部材２２を図３（B）のように持ち上げ、図２（B）のように加熱装置１０を下げて取鍋精錬処理を行う（図５の符号６２で示される動線参照）。一方第１取鍋台車5aは取鍋６が無くなるので、図１（B）、図５の符号６１のように取鍋預かり機構１６から離れ、通路4bを通って元の位置（ターンテーブル4a）に戻り（図５の符号６１で示される動線参照）、次の浴鋼が収納されている取鍋６を受け取る準備をする。 The implementation status of the above configuration will be described.
First, FIG. 1, of the ladle movement path 4 for ladle truck that appearing in FIG. 2, the first ladle carriage 5a is assumed to be located on a turntable 4a. For example, a ladle 6 in which bath steel melted and refined by a smelting furnace or the like is stored is carried on a first ladle cart 5a by a crane (not shown) and placed in the state shown in FIGS. 4B and 4C. It is done. The ladle 6 changes its direction on the turntable 4a by 90 degrees and passes through the first passage 4b with the missing portion 30 provided on the traveling side of the ladle cart 5a as shown in FIG. It goes to “LF” (see the flow line indicated by reference numeral 60 in FIG. 5). As described above, in “LF”, since the space 14 is vacant, the first ladle cart 5a enters the “LF” in the state of FIGS. 3 (A) and 4 (C). Next, the support means 18 and the receiving member 22 of the ladle storage mechanism 16 are lifted as shown in FIG. 3B, and the heating apparatus 10 is lowered as shown in FIG. Reference is made to the flow line indicated by reference numeral 62). On the other hand, since the ladle 6 is eliminated from the first ladle cart 5a, it is separated from the ladle storage mechanism 16 as shown by reference numeral 61 in FIG. 1 (B) and FIG. Returning to (refer to the flow line indicated by reference numeral 61 in FIG. 5), preparation for receiving the ladle 6 in which the next bath steel is accommodated is prepared.

「ＬＦ」において精錬処理が完了した時点においては、「ＬＦ」に位置する取鍋６の下側には第１取鍋台車5aが抜けたことにより別の第２の取鍋台車5bが入り込む隙間が生じているので、図１（B）に１点鎖線で示している台車、即ち、第２取鍋台車5bが第２の通路4cを通って矢印５６方向に進み（図５の符号６３で示される動線参照）、「ＬＦ」の下側に入り込む。そこで取鍋預かり機構１６の支持手段１８及び受取部材２２が図３（A）のように下降すると、取鍋６は図３（A）及び図４（B）（C）に示されるように第２取鍋台車5bの上に乗る。この状態で第２取鍋台車5bは、図２（B）に表れているようにターンテーブル4dに向けて通路4cをバックすることにより、取鍋預かり機構１６から離れ、通路4cに添って横方向に向けて移動し、取鍋６を運ぶことができる（図５の符号６４で示される動線参照）。次に第２取鍋台車5bはターンテーブル4dで１８０度向きを変え、図１（B）、図２（A）のように通路4eを次段（例えば二次精錬炉としての真空脱ガス設備（以下単に「ＲＨ」ともいう）３）へ進む。「ＲＨ」においては、「ＬＦ」に関連して前述したと同様に、第２取鍋台車5bに乗せた取鍋６を取鍋預かり機構１６に預け、「ＲＨ」において処理してる時間中に通路4eをバックし、ターンテーブル4dで向きを変え、図１（B）のように取鍋台車の進行側に備える欠如部３０を前にして通路4cを通って矢印５６方向に進行し、「ＬＦ」の近くで次の取鍋６を受け取る準備をする（図５の符号６５で示される動線参照）。 At the time the refining process is completed in the "LF" is below the ladle 6 located "LF" gap another second ladle truck 5b enters by that missing first ladle carriage 5a 1B, the carriage shown by the one-dot chain line in FIG. 1B, that is, the second ladle carriage 5b advances in the direction of the arrow 56 through the second passage 4c (reference numeral 63 in FIG. 5). Enter the lower side of “LF”. Therefore, when the support means 18 and the receiving member 22 of the ladle storage mechanism 16 are lowered as shown in FIG. 3A, the ladle 6 is moved to the first position as shown in FIGS. 3A, 4B, and 4C. 2 Get on the ladle cart 5b. In this state, the second ladle trolley 5b moves away from the ladle storage mechanism 16 by backing the passage 4c toward the turntable 4d as shown in FIG. 2 (B), and moves along the passage 4c. It can move in the direction and carry the ladle 6 (see the flow line indicated by reference numeral 64 in FIG. 5). Next, the second ladle trolley 5b is turned 180 degrees on the turntable 4d, and the passage 4e is moved to the next stage (for example, a vacuum degassing facility as a secondary smelting furnace, as shown in FIGS. 1B and 2A). Proceed to 3) (hereinafter also simply referred to as “RH”). In “RH”, the ladle 6 placed on the second ladle cart 5b is deposited in the ladle storage mechanism 16 and processed in “RH” in the same manner as described above in relation to “LF”. back passage 4e, redirected turntable 4d, and progress in the arrow 56 direction through the passage 4c in the front a lack portion 30 provided in the traveling side of the ladle truck as in FIG. 1 (B), Prepare to receive the next ladle 6 near “LF” (see the flow line indicated by reference numeral 65 in FIG. 5).

次に、「ＲＨ」において所定の処理が完了した後（図５の符号６６で示される動線参照）は、通路4fにおいて待機していた全く別の第３取鍋台車5c（図１（B）及び図２参照）が、前述「ＬＦ」に関連して説明したと同様にして、「ＲＨ」における処理完了後の取鍋６を受け取り、図１（B）及び図２で示される位置まで戻る（図５の符号６７で示される動線参照）。ここで取鍋６はクレーンにより持ち去られる。
以上の説明は、１つの取鍋６を中心にしての精錬作業に係わる流れの説明にあたり、第１取鍋台車5a〜第３取鍋台車5cを用いた事例をひと通り説明したが、図５から明らかなように精錬を必要とする取鍋６は、図１、図２のターンテーブル4aの上に位置する第１取鍋台車5aの上に繰り返し運ばれ、上記の作業は反復実施されるのである。 Next, after the predetermined process is completed in “RH” (see the flow line indicated by reference numeral 66 in FIG. 5), a completely different third ladle cart 5c (FIG. 1 (B) ) And FIG. 2) receive the ladle 6 after the completion of the processing in “RH” in the same manner as described above in relation to “LF”, up to the position shown in FIG. 1 (B) and FIG. Return (refer to the flow line indicated by reference numeral 67 in FIG. 5). Here, the ladle 6 is carried away by a crane.
In the above explanation, in explaining the flow related to the refining work centered on one ladle 6, the examples using the first ladle trolley 5a to the third ladle trolley 5c have been explained. As shown in FIG. 2, the ladle 6 that requires refining is repeatedly carried on the first ladle cart 5a located on the turntable 4a in FIGS. 1 and 2, and the above operations are repeated. It is.

このような取鍋精錬方法を採用することにより、図１、図２から明らかなように限られた狭い敷地においても、取鍋台車5aと取鍋台車5bとの２台を夫々効率よく運用して図５に示すように取鍋精錬装置の休止時間は少なく、次々と連続的に、効率よく取鍋精錬をすることができる。
なお、図の説明に当たって、「ＲＨ」に関連して利用される構成については、前述した図１〜図５に記載されている「ＬＦ」の構成に関連する技術的事項において説明したと構成、機能等の点において同一視し得ると考えられる技術的事項については、先に説明した符号と同一の符号を付して相互に重複する説明を省略する。 By adopting such a ladle refining method, the ladle cart 5a and the ladle cart 5b can be operated efficiently even in a limited and narrow site as is apparent from FIGS. As shown in FIG. 5, the ladle refining apparatus has a short downtime, and the ladle can be refined continuously and efficiently.
In the description of the figure, the configuration used in relation to “RH” is the configuration described in the technical matters related to the configuration of “LF” described in FIGS. For technical matters that can be considered to be the same in terms of functions and the like, the same reference numerals as those described above are assigned, and redundant descriptions are omitted.

は、炉外精錬設備における取鍋精錬装置と真空脱ガス設備（ＲＦ）との位置関係を示す平面図で、（A）は取鍋台車５のない状態、（B）は取鍋台車５を配置した状態を示す。These are the top views which show the positional relationship of the ladle refining apparatus and vacuum degassing equipment (RF) in an out-of-furnace refining equipment, (A) is the state without the ladle cart 5, (B) is the ladle cart 5 Shows the state of placement. の（A）と（B）は炉外精錬設備における取鍋精錬装置と、真空脱ガス設備と、取鍋台車５と、取鍋６との位置関係を説明するための正面概要図。(A) and (B) are front schematic diagrams for explaining the positional relationship among a ladle refining device, a vacuum degassing facility, a ladle carriage 5 and a ladle 6 in an out-of-furnace refining facility. の（A）と（B）は、取鍋預かり機構１６と、取鍋台車５と、取鍋６との位置関係を説明するための一部破断正面図。(A) and (B) are partially broken front views for explaining the positional relationship among the ladle storage mechanism 16, the ladle cart 5, and the ladle 6. の（A）と（B）は、取鍋台車５に対して取鍋６を乗せる前と、乗せた後との関係位置を説明するための平面図。（C）図は、（B）図の右側から見た正面図であって、取鍋台車５と、取鍋６と、取鍋預かり機構１６の関係を説明するための正面図である。(A) and (B) are plan views for explaining the relative positions between before and after placing the ladle 6 on the ladle carriage 5. (C) The figure is the front view seen from the right side of (B) figure, Comprising: It is a front view for demonstrating the relationship between the ladle trolley 5, the ladle 6, and the ladle custody mechanism 16. FIG. は、従来例と、本件実施例との取鍋台車５と、取鍋精錬装置２と、真空脱ガス設備との関係を説明するためのサイクルタイム表を示す。These show the cycle time table for demonstrating the relationship between the ladle trolley | bogie 5, the ladle refining apparatus 2, and the vacuum degassing equipment of a prior art example and a present Example.

１・・・炉外精錬設備、２・・・取鍋精錬装置（ＬＦ）、３・・・真空脱ガス設備、４・・・取鍋移動経路、５・・・取鍋台車、６・・・取鍋、１０・・・加熱装置、 １１・・・炉蓋、１２・・・電極、１４・・・空間、１６・・・取鍋預かり機構、１７・・・装置設置場所（ピット）、１８・・・支持手段、１９・・・基枠、２０・・・ガイド手段、 ２１・・・上下駆動装置、２２・・・受取部材、２３・・・受取部、２４・・・支持する部材、２５・・・台枠、２６・・・車輪、２７・・・駆動制御部、２８・・・取鍋乗載領域、２９・・・受取部材用透孔、３０・・・脱出用欠如部、 ３２・・・取鍋支承部材、３３・・・元部、３４・・・先端部（係合部）、３８・・・浴鋼収納空間、３９・・・周壁、４０・・・底部材、４１・・・補強部材、４２・・・フック掛け、４３・・・当て座部、４７・・・真空脱ガス装置（ＲＨ）。 DESCRIPTION OF SYMBOLS 1 ... Out-of-furnace refining equipment, 2 ... Ladle refining equipment (LF), 3 ... Vacuum degassing equipment, 4 ... Ladle movement route, 5 ... Ladle cart, 6. -Ladle, 10 ... heating device, 11 ... furnace lid, 12 ... electrode, 14 ... space, 16 ... ladle storage mechanism, 17 ... device installation location (pit), DESCRIPTION OF SYMBOLS 18 ... Support means, 19 ... Base frame, 20 ... Guide means, 21 ... Vertical drive device, 22 ... Receiving member, 23 ... Receiving part, 24 ... Member to support , 25 ... Underframe, 26 ... Wheel, 27 ... Drive control section, 28 ... Ladle mounting area, 29 ... Receiving member through-hole, 30 ... Escape part for escape 32 ... Ladle support member, 33 ... Base part, 34 ... Tip part (engagement part), 38 ... Bath steel storage space, 39 ... Perimeter wall, 40 ... Bottom member , 41 ...・ Reinforcing member, 42... Hook hook, 43... Seat portion, 47... Vacuum degassing device (RH).

Claims (2)

取鍋に対して蓋着する為の炉蓋には取鍋内の浴鋼を加熱する為の電極を備えさせ、
一方、上記炉蓋の下側には、取鍋台車に乗載した取鍋の出入りが可能な空間を備え、
上記炉蓋の下側に対して、上記取鍋を取鍋預かり機構の受取部材で上動させた状態で位置させ、かつ、上記炉蓋を蓋着し、上記電極に電力を供給して取鍋内の浴鋼を加熱精錬するようにしてある取鍋精錬装置において、
上記取鍋台車に乗載した取鍋の出入り可能な空間の下側には、取鍋を受け取る為の受取部材と、上記受取部材を支えて上下動する支持手段とを備えている取鍋預かり機構を設置し、
一方、上記空間の周囲には、取鍋台車に乗載した取鍋の出入りが可能な上記空間に向けて、夫々第１の取鍋台車と第２の取鍋台車の進退を可能にする少なくても二本の第１の通路と、第２の通路とを備えさせると共に、それらの第１の通路と、第２の通路には、夫々上記空間に向けて個別に往復動を自在にする第１の取鍋台車と、第２の取鍋台車を配し、
上記夫々の第１の取鍋台車と、第２の取鍋台車における各取鍋乗載領域には、上記取鍋預かり機構における受取部材の上下動を許容するための透孔を備えさせ、
さらに、上記夫々の第１の取鍋台車と、第２の取鍋台車との各透孔の進行側の側方には、
上記の上動させた状態にある取鍋預かり機構における受取部材又は支持手段が透孔に対し、側方から出入り可能にする為の欠如部を夫々備えさせ、
上記取鍋預かり機構における受取部材によって取鍋を受け取っている状態で、上記取鍋の下方には、上記第１の通路に配された第１の取鍋台車と、第２の通路に配された第２の取鍋台車とが、夫々個別に、進退自在で、かつ、第１の通路と、第２の通路とを夫々側方に向けて取鍋預かり機構から離れる方向に自由な移動を可能にしてあることを特徴とする取鍋精錬装置。
The furnace lid to cover the ladle is equipped with an electrode to heat the bath steel in the ladle,
On the other hand, on the lower side of the furnace lid, there is a space in which the ladle mounted on the ladle cart can enter and exit,
Against the underside of the furnace cover, is positioned in a state that is moved upward by the receiving member mechanism deposit ladle the ladle, and the furnace lid and Futagi, collected by supplying power to the electrode In the ladle refining equipment that heats and refines the bath steel in the pot,
A ladle storage provided with a receiving member for receiving the ladle and support means for moving up and down while supporting the receiving member, below the space in which the ladle mounted on the ladle cart is accessible. Set up the mechanism,
On the other hand, around the space, the first ladle trolley and the second ladle trolley can be moved forward and backward, respectively , toward the space where the ladle mounted on the ladle trolley can enter and exit. a first passage of two even, with causing a second passage, and their first passage, the second passage, to freely reciprocate individually toward each said space Arrange the first ladle trolley and the second ladle trolley,
Each ladle mounting region in each of the first ladle cart and the second ladle cart is provided with a through hole for allowing the receiving member in the ladle storage mechanism to move up and down ,
Furthermore, on the lateral side of each through hole of each of the first ladle trolley and the second ladle trolley,
Receiving member or the support means with respect to the through hole in the ladle deposit mechanism is in a state of being above the upward movement, the lack portion for allowing out from the side respectively allowed comprising,
In a state where the ladle is received by the receiving member in the ladle storage mechanism, a first ladle cart disposed in the first passage and a second passage are disposed below the ladle. Each of the second ladle carts can be moved forward and backward individually, and can move freely in a direction away from the ladle storage mechanism with the first passage and the second passage directed sideways. A ladle refining device characterized by being made possible .
取鍋に対して蓋着する為の炉蓋には取鍋内の浴鋼を加熱する為の電極を備えさせ、
一方、上記炉蓋の下側には、取鍋台車に乗載した取鍋の出入りが可能な空間を備え、
上記炉蓋の下側に対して、上記取鍋を取鍋預かり機構の受取部材で上動させた状態で位置させ、かつ、上記炉蓋を蓋着し、上記電極に電力を供給して取鍋内の浴鋼を加熱精錬するようにしてある取鍋精錬方法において、
上記取鍋台車に乗載した取鍋の出入り可能な空間の下側には、取鍋を受け取る為の受取部材と、上記受取部材を支えて上下動する支持手段とを備えている取鍋預かり機構を設置しておき、
一方、上記空間の周囲には、取鍋台車に乗載した取鍋の出入りが可能な空間に向けて、夫々第１の取鍋台車と第２の取鍋台車の進退を可能にする少なくても二本の第１の通路と、第２の通路とを備えさせると共に、それらの第１の通路と、第２の通路には、夫々上記空間に向けて個別に往復動を自在にする第１の取鍋台車と、第２の取鍋台車を配しておき、
上記夫々の第１の取鍋台車と、第２の取鍋台車における各取鍋乗載領域には、上記取鍋預かり機構における受取部材の上下動を許容するための透孔を備えさせ、
さらに、上記夫々の第１の取鍋台車と、第２の取鍋台車との各透孔の進行側の側方には、
上記の上動させた状態にある取鍋預かり機構における受取部材又は支持手段が透孔に対し、側方から出入り可能にする為の欠如部を夫々備えさせておき、
上記加熱精錬においては、 第１の取鍋台車の上に、浴鋼を収納している取鍋を乗せ、第１の取鍋台車の進行側に備える欠如部を前にして第１の通路を通って上記空間内に第１の取鍋台車を入れ、
取鍋預かり機構の支持手段及び受取部材を上昇させて、取鍋を上昇させ、炉蓋を蓋着し、電極に電力を供給して取鍋内の浴鋼を加熱精錬処理を行い、この間、上記第１の取鍋台車は上記空間から抜け、第１の通路を通って側方に向けて自由に運用し、
上記加熱精錬処理完了後は、既に上記空間から第１取鍋台車が抜けているので第２の取鍋台車の進行側に備える欠如部を前にして第２の通路を通って上記空間内に第２の取鍋台車を入れ、
取鍋預かり機構の支持手段及び受取部材を下降させて取鍋を第２取鍋台車の上に乗せ、
第２取鍋台車を第２の通路にバックさせ、第２の通路に添って横方向に向けて移動させて取鍋を次段へ向けて運ぶようにしたことを特徴とする取鍋精錬方法。 The furnace lid to cover the ladle is equipped with an electrode to heat the bath steel in the ladle,
On the other hand, on the lower side of the furnace lid, there is a space in which the ladle mounted on the ladle cart can enter and exit,
The ladle is positioned in a state where it is moved up by the receiving member of the ladle storage mechanism with respect to the lower side of the furnace lid, the furnace lid is covered, and power is supplied to the electrode to take it out. In the ladle refining method that heats and refines the bath steel in the pot,
A ladle storage provided with a receiving member for receiving the ladle and support means for moving up and down while supporting the receiving member, below the space in which the ladle mounted on the ladle cart is accessible. Set up the mechanism,
On the other hand, around the space, the first ladle trolley and the second ladle trolley can be moved forward and backward, respectively, toward the space where the ladle mounted on the ladle trolley can enter and exit. Are provided with two first passages and a second passage, and the first passage and the second passage each have a second reciprocating motion freely toward the space. Arrange the ladle cart of 1 and the second ladle cart,
Each ladle mounting region in each of the first ladle cart and the second ladle cart is provided with a through hole for allowing the receiving member in the ladle storage mechanism to move up and down,
Furthermore, on the lateral side of each through hole of each of the first ladle trolley and the second ladle trolley,
The receiving member or the supporting means in the ladle storage mechanism in the above-described upward movement state is provided with a lacking part for allowing access from the side to the through hole, respectively.
In the heating and refining, a ladle containing bath steel is placed on the first ladle trolley, and the first passage is formed in front of the lacking portion provided on the traveling side of the first ladle trolley. Pass the first ladle trolley into the space above,
Raise the support means and receiving member of the ladle custody mechanism, raise the ladle, cover the furnace lid, supply power to the electrode, and heat refining the bath steel in the ladle, The first ladle trolley comes out of the space, operates freely toward the side through the first passage,
After completion of the heating and refining treatment, the first ladle trolley has already been removed from the space, and therefore, the missing portion provided on the traveling side of the second ladle trolley is passed through the second passage into the space. Put the second ladle trolley,
Lowering the support means and receiving member of the ladle storage mechanism and placing the ladle on the second ladle carriage,
A ladle refining method characterized in that the second ladle trolley is moved back to the second passage and moved laterally along the second passage to carry the ladle toward the next stage. .
JP2007082556A 2007-03-27 2007-03-27 Ladle refining apparatus and ladle refining method Expired - Fee Related JP5135569B2 (en)

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DE102013114811B3 (en) * 2013-12-23 2014-12-31 Ald Vacuum Technologies Gmbh Apparatus and method for treating metallic material
CN107175325B (en) * 2017-06-15 2023-07-18 中冶华天工程技术有限公司 System and method for off-line baking of hot-metal ladle by utilizing residual steel return line
CN115927791A (en) * 2022-12-26 2023-04-07 中冶南方(湖南)工程技术有限公司 LF stove is smelted with RH stove common rail

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