JP2002310568A - Method for repairing refractory wall for molten metal container - Google Patents
Method for repairing refractory wall for molten metal containerInfo
- Publication number
- JP2002310568A JP2002310568A JP2001112432A JP2001112432A JP2002310568A JP 2002310568 A JP2002310568 A JP 2002310568A JP 2001112432 A JP2001112432 A JP 2001112432A JP 2001112432 A JP2001112432 A JP 2001112432A JP 2002310568 A JP2002310568 A JP 2002310568A
- Authority
- JP
- Japan
- Prior art keywords
- refractory
- repair
- brick
- spraying
- bricks
- 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.)
- Withdrawn
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、転炉で吹錬されて
出鋼する溶鋼を、次工程例えば連続鋳造設備に搬送する
前に清浄化のため溶鋼の二次精錬処理に用いられる溶融
金属容器の補修方法に係り、特に溶融金属容器の耐火物
壁のライニングの中で、鋼浴部が耐火煉瓦または流し込
み材、スラグライン部がマグネシア−カーボン質（Ｍｇ
Ｏ−Ｃ）煉瓦等の耐火煉瓦でゾーンドライニングされた
耐火物壁の補修方法に関する。[0001] The present invention relates to a molten metal used for secondary refining of molten steel for cleaning the molten steel which is blown out in a converter and is tapped before being transferred to a next step, for example, a continuous casting facility. In the repair method of the container, particularly in the lining of the refractory wall of the molten metal container, the steel bath portion is made of a refractory brick or a cast material, and the slag line portion is made of magnesia-carbon (Mg).
The present invention relates to a method for repairing a refractory wall zone-lined with a refractory brick such as an OC-brick.
【０００２】[0002]
【従来の技術】従来の上記溶融金属容器（以下これを代
表して取鍋とする）は、図１に半部の断面図を示すよう
に、取鍋１の鉄皮の内側にパーマネント煉瓦層２が、そ
の内側にサブパーマネント煉瓦層３が積層され、さらに
その内側にワーク煉瓦層を構成する耐火煉瓦５が積層さ
れて耐火物壁が構成されている。2. Description of the Related Art A conventional molten metal container (hereinafter referred to as a ladle) has a permanent brick layer inside a steel shell of a ladle 1, as shown in FIG. 2, a sub-permanent brick layer 3 is laminated on the inside thereof, and a refractory brick 5 constituting a work brick layer is further laminated on the inside thereof to form a refractory wall.
【０００３】一般的には、前記パーマネント煉瓦層２に
はシリカ（ＳｉＯ２）系断熱煉瓦が、前記サブパーマネ
ント煉瓦層３には高アルミナ（Ａｌ２Ｏ３）質煉瓦が用
いられている。また前記ワーク煉瓦層のうちスラグライ
ン部ＳにはＭｇＯ−Ｃ質等の耐火煉瓦５が、鋼浴部Ｔに
はアルミナ・マグネシア−カーボン（Ａｌ２Ｏ３・Ｍｇ
Ｏ−Ｃ）質、ＭｇＯ−Ｃ質等の耐火煉瓦またはアルミナ
・マグネシア（Ａｌ２Ｏ３−ＭｇＯ）（スピネル）質等
の流し込み材が使用されており、図１では鋼浴部Ｔに流
し込み材４を用いている場合を示している。Generally, a silica (SiO 2 ) heat insulating brick is used for the permanent brick layer 2 and a high alumina (Al 2 O 3 ) brick is used for the sub-permanent brick layer 3. In the work brick layer, a refractory brick 5 of MgO—C or the like is provided in the slag line portion S, and alumina / magnesia-carbon (Al 2 O 3 .Mg) is provided in the steel bath portion T.
A cast material such as refractory bricks such as O—C) and MgO—C or a material such as alumina / magnesia (Al 2 O 3 —MgO) (spinel) is used. In FIG. 4 is used.
【０００４】上記のような耐火物壁構造を有する取鍋に
おいては、使用により耐火物壁が損傷する。図５（Ａ）
はその損傷状況を模式的に示している。この図５（Ａ）
においては、ワーク煉瓦層の耐火煉瓦５，５…が損傷し
ており、既に補修を必要とする状態となっている。In a ladle having a refractory wall structure as described above, the refractory wall is damaged by use. FIG. 5 (A)
Schematically shows the damage state. This FIG.
, The refractory bricks 5, 5,... Of the work brick layer are damaged, and have already been repaired.
【０００５】従来、上記の損傷状態となったときは、ス
ラグライン部Ｓについては仮に損傷された耐火煉瓦５，
５…に残厚が存在していたとしてもこれら損傷した耐火
煉瓦５，５…をすべて撤去し、図５（Ｂ）に示すように
新規の同一質の耐火煉瓦５’，５’…を積み直すという
方法を採っている。Conventionally, when the above-mentioned damaged state occurs, the slag line portion S is temporarily damaged by the refractory brick 5,
Even if there is residual thickness in 5 ..., all of these damaged refractory bricks 5, 5 ... are removed, and new refractory bricks 5 ', 5' ... of the same quality are stacked as shown in FIG. 5 (B). The method of fixing is adopted.
【０００６】このとき新たに積む耐火煉瓦５’の厚み
（奥行幅）は残存する鋼浴部Ｔの耐火物壁４の残厚に対
応させる必要があるため、補修後の耐火物壁の壁面は初
期の壁面ａの位置まで到達せず、全体として寸法ｂだけ
薄い耐火物壁構造となるのが一般的である。At this time, the thickness (depth width) of the refractory brick 5 'to be newly piled must correspond to the remaining thickness of the refractory wall 4 of the remaining steel bath portion T. In general, the refractory wall structure does not reach the initial position of the wall surface a but is thinner by the dimension b as a whole.
【０００７】また図６（Ａ）に示すように、損傷したス
ラグライン部Ｓの耐火煉瓦５，５…を撤去し、鋼浴部Ｔ
の損傷面に対し鉄製の型枠７をその型面が耐火物壁の初
期の壁面ａに一致するように設置し、耐火物壁４の損傷
面と型枠７との間の空間部８に流し込み装置９を用いて
流し込み材４ａを流し込み施工し、流し込み材４ａの硬
化後、図６（Ｂ）に示すようにスラグライン部Ｓに新た
な同一質の耐火煉瓦５を積み直す補修方法も採られてい
る。Further, as shown in FIG. 6A, the refractory bricks 5, 5,... Of the damaged slag line section S are removed, and the steel bath section T is removed.
An iron formwork 7 is installed with respect to the damaged surface of the refractory wall so that the form surface coincides with the initial wall surface a of the refractory wall, and a space 8 between the damaged surface of the refractory wall 4 and the formwork 7 is provided. The pouring material 4a is poured by using the pouring device 9, and after the pouring material 4a is hardened, a repair method of reloading a new refractory brick 5 of the same quality into the slag line section S as shown in FIG. Have been.
【０００８】これによれば、スラグライン部Ｓの耐火物
煉瓦５の厚みの減少がなく、当初の耐火物壁構造に修復
することができる。According to this, the thickness of the refractory brick 5 in the slag line section S does not decrease, and the refractory wall structure can be restored to the original structure.
【０００９】[0009]
【発明が解決しようとする課題】しかして上記いずれの
補修方法においても、スラグライン部Ｓの周辺の耐火煉
瓦５に残厚があった場合であってもそれらを無視して損
傷煉瓦のすべてを撤去して新たな耐火煉瓦と交換するの
で煉瓦の使用量が増大し、その結果、製鋼原単位に占め
る耐火物原単位が大きくなるという問題がある。However, in any of the above repair methods, even if the refractory bricks 5 around the slag line section S have a residual thickness, they are ignored and all of the damaged bricks are ignored. Since the bricks are removed and replaced with new refractory bricks, the amount of bricks used increases, and as a result, there is a problem that the refractory basic unit in the steelmaking basic unit increases.
【００１０】また図５に示す補修方法では、損傷した状
態の鋼浴部Ｔの残存厚に対応した厚みの耐火煉瓦５’を
用いて補修施工しなければならないため、初期の耐火物
壁の厚みに較べて薄肉となり、その結果補修後の耐火物
壁に十分な耐用性を確保することができず、補修後の取
鍋の寿命が短くなり、全修理から全修理までの寿命、つ
まり炉代を通しての寿命が十分に確保し得ないという問
題がある。In the repair method shown in FIG. 5, the repair work must be performed using a refractory brick 5 'having a thickness corresponding to the remaining thickness of the steel bath portion T in a damaged state. As a result, the refractory wall after repair cannot have sufficient durability, and the life of the ladle after repair is shortened. There is a problem that the service life cannot be sufficiently secured.
【００１１】一方、図６に示す流し込み材４ａを用いた
補修方法によれば、補修後の耐火物壁の厚みは初期と同
等とすることができ、補修後の十分な耐用性が得られる
利点がある。しかし補修時に鉄製型枠７や流し込み材４
ａを施工するための流し込み装置９が必要であり、これ
らにより補修時の施工コストが嵩むという問題をはじ
め、型枠７の設置・取り外しの工程が必要となり、その
工程を行うために障害となる部位が存在する場合にはそ
の部位をも解体する作業が必要となって、補修工期や作
業性の面に影響をもたらすという問題がある。On the other hand, according to the repair method using the pouring material 4a shown in FIG. 6, the thickness of the refractory wall after repair can be made equal to the initial thickness, and the sufficient durability after repair can be obtained. There is. However, at the time of repair, iron formwork 7 and casting material 4
It is necessary to use a pouring device 9 for constructing the mold a, and the installation and removal steps of the formwork 7 are required, such as a problem that the construction cost at the time of repair is increased due to these. When there is a part, it is necessary to perform an operation of dismantling the part, which has a problem that the repair work period and workability are affected.
【００１２】したがってこれらの補修方法では、コスト
面、工期、作業性、および取鍋寿命の短縮等、幾多の問
題点があった。Therefore, these repair methods have many problems such as cost, construction period, workability, and shortening of the ladle life.
【００１３】本発明は上記従来の技術が有する問題点を
解消することを課題としてなされたもので、スラグライ
ン部と鋼浴部との境界に位置するワーク煉瓦の損傷が比
較的軽微な場合にはその残厚を利用して補修を行い、耐
火物原単位の低減を図ったことにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and is intended for a case where damage to a work brick located at a boundary between a slag line portion and a steel bath portion is relatively small. Is to carry out repairs using the remaining thickness to reduce the basic unit of refractory.
【００１４】また鋼浴部の損傷部位は不定形耐火物の吹
き付け施工法により湿式吹き付け材を用いて補修を行
い、工期の短縮、施工の省力化、補修コストの低減を図
ることにある。Another object of the present invention is to repair a damaged portion of the steel bath by using a wet spray material by a spraying method of an amorphous refractory, thereby shortening a construction period, saving labor in the work, and reducing a repair cost.
【００１５】さらに型枠を用いない湿式吹き付け施工法
により補修を行うので、補修後に任意の形状・厚みの耐
火煉瓦による構築を可能とし、取鍋の寿命の延長を図る
ことにある。Further, since the repair is performed by a wet spraying method without using a formwork, it is possible to construct a refractory brick having an arbitrary shape and thickness after the repair, and to extend the life of the ladle.
【００１６】[0016]
【課題を解決するための手段】上記課題を解決する手段
として本発明は、溶融金属容器の内張り耐火物壁の損傷
部位の補修において、スラグライン部の耐火煉瓦のうち
鋼浴部との境界に位置する耐火煉瓦の残存厚が原寸の２
／３以上であるとき、当該煉瓦を１段以上残置してそれ
より上部の耐火煉瓦を積み直し、残余の損傷部位に対し
吹き付け施工法により湿式吹き付け材を吹き付けて補修
することを特徴とする。According to the present invention, as a means for solving the above problems, in repairing a damaged portion of a refractory wall lining of a molten metal container, a slag line portion of a refractory brick at a boundary with a steel bath portion is provided. The remaining thickness of the refractory brick located is 2
When the ratio is / 3 or more, the brick is left in one or more stages, the refractory bricks above it are restacked, and the remaining damaged portion is repaired by spraying a wet spray material by a spraying method.
【００１７】スラグライン部の耐火煉瓦のうち鋼浴部と
の境界に位置する耐火煉瓦の残存厚が原寸の２／３未満
かつ５０ｍｍ以上であるときは、当該煉瓦を１段以上残
置してそれより上部の耐火煉瓦を撤去し、残置した耐火
煉瓦の上面に仕切板を設置し、この仕切板より下位の損
傷部位に対し吹き付け施工法により湿式吹き付け材を吹
き付けて補修し、次いで前記残置した耐火煉瓦と吹き付
け施工した湿式吹き付け材の上面に耐火煉瓦を積み直し
て補修する。When the remaining thickness of the refractory brick located at the boundary with the steel bath in the refractory brick in the slag line portion is less than 2/3 of the original size and 50 mm or more, the brick is left in one or more steps. The upper refractory brick was removed, a partition plate was installed on the upper surface of the remaining refractory brick, and a damaged portion below the partition plate was repaired by spraying a wet spray material by a spraying method, and then the remaining refractory brick was repaired. The firebricks will be rebuilt and repaired on top of the bricks and the sprayed wet-sprayed material.
【００１８】スラグライン部の耐火煉瓦のうち鋼浴部と
の境界に位置する耐火煉瓦の残存厚が５０ｍｍ未満であ
るときは、スラグライン部の耐火煉瓦をすべて撤去し、
鋼浴部の残存する耐火物壁の上面に仕切板を設置し、鋼
浴部の損傷部位に対し吹き付け施工法により湿式吹き付
け材を吹き付け施工したのちスラグライン部の耐火煉瓦
を積み直して補修する。When the remaining thickness of the refractory brick located at the boundary with the steel bath in the slag line portion is less than 50 mm, all the refractory bricks in the slag line portion are removed.
A partition plate is installed on the upper surface of the remaining refractory wall of the steel bath, and the damaged part of the steel bath is sprayed with a wet spray material by a spraying method, and then the fire bricks of the slag line are reloaded and repaired. .
【００１９】[0019]
【発明の実施の形態】以下、本発明を図面に示す実施の
形態を参照し、図１、図５、図６と共通する部分にはこ
れと同一符号を用いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings and the same reference numerals will be used for parts common to FIGS. 1, 5 and 6. FIG.
【００２０】図２（Ａ）〜（Ｃ）は、取鍋１が操業によ
り使用されて補修を必要とする程度に損傷した耐火物壁
のうち、スラグライン部Ｓの耐火煉瓦のうち鋼浴部Ｔと
の境界に位置する耐火煉瓦５の残厚が原寸の２／３以上
残存する場合で、その損傷が軽微な場合の補修方法を示
しており、本願請求項１に対応する。FIGS. 2A to 2C show the steel bath portion of the refractory brick of the slag line portion S among the refractory walls damaged to the extent that the ladle 1 is used during operation and needs repair. This shows a repair method in the case where the remaining thickness of the refractory brick 5 located at the boundary with T remains 2/3 or more of the original size and the damage is slight, and corresponds to claim 1 of the present application.
【００２１】上記の場合は、スラグライン部Ｓの耐火煉
瓦のうち鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａを残
置してそれより上位のスラグライン部Ｓの耐火煉瓦５，
５…を撤去し、次いで前記の残置した耐火煉瓦５Ａの上
に図２（Ｂ）に示すように初期と同厚の新たな同材質の
耐火煉瓦５，５…を積み直す。In the above case, among the refractory bricks of the slag line section S, the refractory brick 5A located at the boundary with the steel bath section T is left, and the refractory bricks 5 of the slag line section S higher than that are placed.
5 are removed, and new refractory bricks 5, 5... Of the same material as the initial thickness are re-stacked on the remaining refractory bricks 5A as shown in FIG.
【００２２】こうしたのち鋼浴部Ｔおよび前記の残置し
た耐火煉瓦５Ａの損傷部位に対し図２（Ｂ）に示す初期
の壁面ラインａに至るまで吹き付け装置１０により湿式
吹き付け材６を吹き付けて補修を行う。図２（Ｃ）は補
修完了後の形態を示しており、上記補修を行うことで初
期の厚みと同等の厚みを有する耐火物壁に復元すること
ができる。After that, the damaged portion of the steel bath T and the remaining refractory brick 5A is repaired by spraying the wet spray material 6 by the spraying device 10 to the initial wall line a shown in FIG. 2B. Do. FIG. 2C shows a form after the repair is completed, and by performing the repair, the refractory wall having the same thickness as the initial thickness can be restored.
【００２３】スラグライン部Ｓの耐火煉瓦のうち鋼浴部
Ｔとの境界に位置する耐火煉瓦５Ａの残厚が原寸の２／
３以上存在すれば、その残存耐火煉瓦５Ａの上部に初期
と同等の奥行幅を持った耐火煉瓦５，５…を積層するこ
とが構造上十分可能である。上記残存耐火煉瓦５Ａの残
厚が原寸の２／３未満である場合には、上記補修方法は
不適である。The remaining thickness of the refractory brick 5A located at the boundary with the steel bath T among the refractory bricks in the slag line section S is 2/1/2 of the original size.
If three or more are present, it is structurally sufficiently possible to stack refractory bricks 5, 5,... Having the same depth width as the initial stage on the remaining refractory brick 5A. When the remaining thickness of the remaining refractory brick 5A is less than 2/3 of the original size, the above repair method is inappropriate.
【００２４】図３（Ａ）〜（Ｃ）は、耐火物壁のスラグ
ライン部Ｓの耐火煉瓦のうち鋼浴部Ｔとの境界に位置す
る耐火煉瓦５Ａの残厚が原寸の２／３未満でかつ５０ｍ
ｍ以上存在する場合であって、その損傷が中程度の場合
の補修方法を示しており、本願請求項２に対応する。FIGS. 3A to 3C show that the remaining thickness of the refractory brick 5A located at the boundary with the steel bath T among the refractory bricks of the slag line section S of the refractory wall is less than 2/3 of the original size. And 50m
This shows a repair method in the case where m or more exists and the damage is moderate, and corresponds to claim 2 of the present application.
【００２５】上記の場合は、スラグライン部Ｓの耐火煉
瓦のうち鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａを残
置してそれより上位の耐火煉瓦５，５…を撤去し、次い
で図３（Ｂ）に示すように前記の残置した耐火煉瓦５Ａ
の上面に仕切板１１を設置し、鋼浴部Ｔおよび前記の損
傷した残存耐火煉瓦５Ａの損傷部位に吹き付け装置１０
により湿式吹き付け材６を初期の壁面ラインａに至るま
で吹き付けて補修を行う。In the above case, of the refractory bricks in the slag line section S, the refractory brick 5A located at the boundary with the steel bath section T is left, and the refractory bricks 5, 5,... 3 (B), the remaining refractory brick 5A
A partition plate 11 is installed on the upper surface of the blasting device, and the spraying device 10 is applied to the steel bath T and the damaged portion of the damaged refractory brick 5A.
The repair is performed by spraying the wet spray material 6 to the initial wall surface line a.
【００２６】上記吹き付け補修施工が終了したのち仕切
板１１を除去し、この仕切板１１が載っていた残存耐火
煉瓦５Ａおよび吹き付け後硬化した湿式吹き付け材６の
上面に新たな同材質の耐火煉瓦５，５…を積み直す。図
３（Ｃ）は補修完了後の形態を示しており、上記の補修
を行うことで初期の厚みと同等の厚みを有する耐火物壁
に復元することができる。なお、前記残存耐火煉瓦５Ａ
の残厚が５０ｍｍ未満である場合には、その残存耐火煉
瓦５Ａが初期の状態と同等の品質特性を持つことが困難
であり、上記補修方法を適用することは好ましくない。
また湿式吹き付け材６の吹き付けに先立って残存耐火煉
瓦５Ａの上に仕切板１１を設置することは、補修時に湿
式吹き付け材６の補修該当箇所以外への飛散を防ぐと同
時に、補修後のスラグライン部Ｓへの耐火煉瓦積みを容
易にする平坦面を得るためである。After the completion of the spray repair, the partition plate 11 is removed, and a new refractory brick 5 of the same material is placed on the upper surface of the remaining refractory brick 5A on which the partition plate 11 has been placed and the wet-blast material 6 which has been cured after spraying. , 5 ... FIG. 3C shows a form after completion of the repair, and by performing the above-described repair, the refractory wall having the same thickness as the initial thickness can be restored. The residual refractory brick 5A
Is less than 50 mm, it is difficult for the remaining refractory brick 5A to have the same quality characteristics as the initial state, and it is not preferable to apply the above repair method.
The installation of the partition plate 11 on the remaining refractory brick 5A prior to the spraying of the wet spray material 6 prevents the wet spray material 6 from being scattered to a portion other than the repair applicable portion at the time of repair, and at the same time, the slag line after repair. This is for obtaining a flat surface that facilitates the refractory brick stacking on the portion S.
【００２７】図４（Ａ）〜（Ｃ）は、耐火物壁のスラグ
ライン部Ｓの耐火煉瓦のうち鋼浴部Ｔとの境界に位置す
る耐火煉瓦５Ａの残厚が５０ｍｍ未満で損傷が甚だしい
場合の補修方法を示しており、本願請求項３に対応す
る。FIGS. 4A to 4C show that, among the refractory bricks in the slag line section S of the refractory wall, the remaining thickness of the refractory brick 5A located at the boundary with the steel bath section T is less than 50 mm and the damage is severe. The repair method in this case is shown, and corresponds to claim 3 of the present application.
【００２８】上記の場合は、図４（Ａ）に示すように損
傷したスラグライン部Ｓの耐火煉瓦５Ａおよび５，５…
をすべて撤去したのち、図４（Ｂ）に示すように鋼浴部
Ｔの残存耐火物壁４の上面に仕切板１１を設置し、鋼浴
部Ｔの損傷部位に吹き付け装置１０により湿式吹き付け
材６を初期の壁面ラインａに至るまで吹き付けて補修す
る。In the above case, as shown in FIG. 4A, the refractory bricks 5A and 5,5.
After the removal of all the components, the partition plate 11 is installed on the upper surface of the refractory wall 4 of the steel bath T as shown in FIG. 6 is sprayed to reach the initial wall line a and repaired.
【００２９】次いで湿式吹き付け材６が硬化したのち仕
切板１１を撤去し、補修後の鋼浴部Ｔの上面に新たな耐
火煉瓦５，５…を積み直す。図４（Ｃ）は補修完了後の
形態を示しており、上記補修を行うことで初期の厚みと
同等の厚みを有する耐火物壁に復元することができる。Then, after the wet spray material 6 has hardened, the partition plate 11 is removed, and new refractory bricks 5, 5,... Are re-stacked on the upper surface of the repaired steel bath portion T. FIG. 4C shows a form after completion of the repair. By performing the repair, the refractory wall having a thickness equal to the initial thickness can be restored.
【００３０】なお、本発明における湿式吹き付け材を用
いて補修を行う場合、耐火物壁の損傷バランスにより損
傷の多い部分を他の部分より厚めに補修することで耐火
物壁を構築する補修方法を採ることも可能である。When the repair is performed by using the wet spraying material according to the present invention, a repair method for constructing a refractory wall by repairing a damaged portion thicker than other portions due to a damage balance of the refractory wall. It is also possible to take.
【００３１】また本発明において用いる湿式吹き付け材
（不定形耐火物）としては特別限定されるものではな
く、慣用されている湿式吹き付け用不定形耐火物、例え
ばアルミナ−炭化珪素−カーボン質、スピネル−炭化珪
素−カーボン質、アルミナ−スピネル−炭化珪素−カー
ボン質、アルミナ−カーボン質、アルミナ−スピネル−
カーボン質、スピネル−マグネシア−カーボン質、マグ
ネシア−カーボン質、アルミナ−マグネシア−カーボン
質、アルミナ−スピネル質、アルミナ−マグネシア質、
スピネル−マグネシア質、スピネル−マグネシア−アル
ミナ質、ジルコン質、高アルミナ質等の湿式吹き付け用
不定形耐火物を使用することができる。また湿式吹き付
け材の吹き付け施工に関しては、例えば特公昭５７−７
３５０号公報に記載の技術を用いて実施することができ
る。The wet spraying material (amorphous refractory) used in the present invention is not particularly limited, and is a commonly used amorphous refractory for wet spraying, for example, alumina-silicon carbide-carbon, spinel-. Silicon carbide-carbon, alumina-spinel-silicon carbide-carbon, alumina-carbon, alumina-spinel-
Carbon, spinel-magnesia-carbon, magnesia-carbon, alumina-magnesia-carbon, alumina-spinel, alumina-magnesia,
Amorphous refractories for wet spraying, such as spinel-magnesia, spinel-magnesia-alumina, zircon, and high alumina, can be used. Regarding the spraying of the wet spraying material, for example, Japanese Patent Publication No. Sho 57-7
It can be carried out using the technique described in Japanese Patent Publication No. 350.
【００３２】次に実際に本発明による補修方法を実施し
た実施例について説明する。Next, an embodiment in which the repair method according to the present invention is actually implemented will be described.
【００３３】（実施例１）実操業において、７１チャー
ジ（以下チャージをｃｈと略称する）使用後、スラグラ
イン部Ｓの耐火煉瓦５が初期の状態から原寸の３／４厚
程度に損傷し、補修が必要となった取鍋を実例として挙
げる。(Embodiment 1) In the actual operation, after using 71 charges (hereinafter charge is abbreviated as ch), the refractory brick 5 of the slag line section S is damaged from its initial state to about 3/4 thickness of the original size, An example of a ladle that needed repair is given below.
【００３４】上記取鍋の初期の耐火物壁（ライニング）
にはゾーンドライニングが採用されており、スラグライ
ン部Ｓにはマグネシア−カーボン質煉瓦を、また鋼浴部
Ｔにはアルミナ−マグネシア質流し込み材を用いて耐火
物壁が構築されていた。Initial refractory wall (lining) of the ladle
A zone refractory wall was constructed using a magnesia-carbonaceous brick in the slag line section S and an alumina-magnesia casting material in the steel bath section T.
【００３５】スラグライン部Ｓの耐火煉瓦のうち鋼浴部
Ｔとの境界に位置する耐火煉瓦の損傷度合いは原寸の１
／５厚程度であったので、図２に示した補修方法により
補修を実施した。Among the refractory bricks in the slag line section S, the degree of damage to the refractory brick located at the boundary with the steel bath section T is 1% of the original size.
Since the thickness was about / 5, the repair was performed by the repair method shown in FIG.
【００３６】そのときスラグライン部Ｓの耐火煉瓦のう
ち鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａを１段残置
（場合によっては２段、３段残置することも可能）して
他の耐火煉瓦５を撤去し、残置した耐火煉瓦５Ａの上に
初期の耐火煉瓦と同等の厚みを有するマグネシア−カー
ボン質煉瓦を積み直したのち、鋼浴部Ｔとスラグライン
部Ｓの損傷部位に対し吹き付け施工法によりアルミナ−
マグネシア質の湿式吹き付け材を用いて補修を行って初
期厚みと同等の厚みを有する耐火物壁を得た。補修後の
取鍋を実操業に用いた結果、初期のライニングの場合と
略同等の耐用性が得られ、７０ｃｈ使用後に全修理を行
うことになった。At this time, of the refractory bricks in the slag line section S, the refractory brick 5A located at the boundary with the steel bath section T is left in one stage (in some cases, two or three stages can be left), and the other refractory bricks are left. After removing the refractory brick 5 and reloading the magnesia-carbon brick having the same thickness as the initial refractory brick on the remaining refractory brick 5A, the steel bath part T and the slag line part S are damaged. Alumina by spraying method
Repair was performed using a magnesia wet spray material to obtain a refractory wall having a thickness equal to the initial thickness. As a result of using the ladle after the repair in actual operation, almost the same durability as in the case of the initial lining was obtained, and the entire repair was performed after using 70 ch.
【００３７】上記本発明の補修方法によるものと、図５
に示した従来の補修方法によるものとを比較したとこ
ろ、補修工期は従来の補修方法による工期指数を「１０
０」としたとき、上記本発明の補修方法による工期は吹
き付け補修を含むため若干長い工期を要するが、その指
数は「１０５」であった。According to the repair method of the present invention and FIG.
In comparison with the conventional repair method shown in FIG. 1, the repair period was calculated by adding the construction period index of the conventional repair method to “10”.
When it is set to “0”, the construction period according to the repair method of the present invention requires a slightly longer construction period because it includes spray repair, but its index was “105”.
【００３８】しかし補修後の耐用性についてみると、上
記従来の補修方法による耐用性指数を「１００」とした
とき、上記本発明の補修方法によれば「１２０」という
耐用性指数が得られた。また耐火物原単位は、上記従来
の補修方法の耐火物原単位指数を「１００」としたと
き、本発明によれば補修時の耐火物コストは掛かったも
のの補修後の延命効果により耐火物原単位指数が「９
５」と若干向上した指数が得られた。However, regarding the durability after the repair, when the durability index according to the conventional repair method is set to “100”, the durability index according to the repair method of the present invention is “120”. . Further, when the refractory basic unit index of the above-mentioned conventional repair method is set to “100”, the refractory basic unit according to the present invention requires a refractory cost at the time of repair, but has a life extension effect after repair. When the unit index is "9
A slightly improved index of "5" was obtained.
【００３９】同様に図６に示した従来の流し込み施工に
よる補修方法と比較したところ、補修工期については上
記従来の補修方法による工期指数を「１００」としたと
き、本発明の補修方法では「３５」という大幅に短縮し
た工期指数が得られた。補修後の耐用性は、上記従来の
補修方法による耐用性指数を「１００」としたとき、本
発明による補修方法による耐用性指数は同じく「１０
０」という従来法と同様の耐用性が得られた。また耐火
物原単位は、上記従来の補修方法による耐火物原単位指
数を「１００」としたとき、本発明によれば補修時にお
ける省力化により「８５」という耐火物原単位指数が得
られた。Similarly, when compared with the conventional repair method by casting shown in FIG. 6, when the repair period is set to “100”, the repair method of the present invention is “35”. ", A significantly shortened construction period index. The durability after the repair was determined by assuming that the durability index according to the conventional repair method described above was “100”, and the durability index according to the repair method according to the present invention was “10”.
The same durability as the conventional method of "0" was obtained. In addition, as for the refractory basic unit, when the refractory basic unit index by the above-mentioned conventional repair method was set to “100”, according to the present invention, the refractory basic unit index of “85” was obtained by labor saving at the time of repair. .
【００４０】（実施例２）前記実施例１と同様の取鍋に
より６９ｃｈ使用後、スラグライン部Ｓの耐火煉瓦のう
ち鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａの残厚が原
寸の１／２程度になっていたため、前述の図２に示した
補修方法による補修は困難であると判断し、図３に示し
た補修方法により補修を行った。(Embodiment 2) After using 69 channels with the same ladle as in Embodiment 1 above, the remaining thickness of the refractory brick 5A located at the boundary with the steel bath portion T among the refractory bricks of the slag line section S is the original size. Since it was about 1/2, it was judged that the repair by the repair method shown in FIG. 2 was difficult, and the repair was performed by the repair method shown in FIG.
【００４１】すなわちスラグライン部Ｓの耐火煉瓦のう
ち、鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａを１段残
置してその上部の耐火煉瓦を撤去し、残置した耐火煉瓦
５Ａの上に木製の仕切板１１を設置し、鋼浴部Ｔとスラ
グライン部Ｓの損傷部位に対し吹き付け施工法によりア
ルミナ−マグネシア質の湿式吹き付け材を用いて補修を
行ったのち、その硬化後仕切板１１を撤去してスラグラ
イン部Ｓ上に初期の耐火煉瓦と同等の厚みのマグネシア
−カーボン質煉瓦を積み直し、補修後の耐火物壁を得
た。That is, of the refractory bricks in the slag line section S, one step of the refractory brick 5A located at the boundary with the steel bath section T is left, and the upper refractory brick is removed. A wooden partition plate 11 is installed and repaired by using a spraying method using an alumina-magnesia wet spray material on the damaged portion of the steel bath T and the slag line S, and then the cured partition plate 11 is cured. Was removed, and magnesia-carbonaceous bricks having the same thickness as the initial refractory bricks were re-loaded on the slag line section S to obtain refractory walls after repair.
【００４２】上記補修後の取鍋を実操業に使用した結
果、初期のライニングの場合と略同等の耐用性が得ら
れ、６８ｃｈ使用後に全修理となった。As a result of using the ladle after the above repair in actual operation, the durability was almost the same as in the case of the initial lining, and it was completely repaired after using 68 channels.
【００４３】上記本発明の補修方法によるものと図５に
示した従来の補修方法によるものとを比較したところ、
補修工期については従来の補修方法による工期指数を
「１００」としたとき、上記本発明による工期指数は
「１０５」という結果であった。A comparison between the repair method according to the present invention and the conventional repair method shown in FIG.
As for the repair period, when the work period index according to the conventional repair method was “100”, the work period index according to the present invention was “105”.
【００４４】しかし補修後の耐用性についてみると、上
記従来の補修方法によるものの耐用性指数を「１００」
としたとき、上記本発明の補修方法によるものは「１２
０」という耐用性指数が得られた。また耐火物原単位
は、上記従来の補修方法の原単位指数を「１００」とし
たとき、本発明の補修方法によれば「９５」という若干
向上した耐火物原単位指数が得られた。However, regarding the durability after the repair, the durability index of the above-mentioned conventional repair method is "100".
According to the repair method of the present invention, "12
A durability index of "0" was obtained. When the basic unit index of the conventional repair method was set to "100", the repair unit method of the present invention provided a slightly improved refractory basic unit index of "95".
【００４５】同様に図６に示した流し込み施工法による
従来の補修方法と比較したところ、補修工期は上記従来
の補修方法による工期指数「１００」としたとき、本発
明の補修方法によれば「４０」という大幅に短縮された
工期指数が得られた。Similarly, when compared with the conventional repair method according to the casting method shown in FIG. 6, when the repair period is set to the construction period index “100” according to the conventional repair method, according to the repair method of the present invention, “ A significantly reduced construction period index of "40" was obtained.
【００４６】補修後の耐用性については、上記従来の補
修方法によるものの耐用性指数を「１００」としたと
き、本発明による補修方法によるものも耐用性指数が
「１００」と従来と同様の耐用性が得られた。また前述
の実施例１に示した本発明による補修方法を用いた場合
とも略同等の耐用性が得られた。耐火物原単位は、上記
従来の補修方法の耐火物原単位指数を「１００」とした
とき、本発明による補修方法では実施例１と比較して補
修時に多くの耐火煉瓦を必要とすることから向上効果は
低くなるものの「９０」という耐火物原単位指数が得ら
れている。As for the durability after repair, when the durability index of the above-mentioned conventional repair method is set to “100”, the durability index of the repair method according to the present invention is “100”, which is the same as that of the conventional repair method. Sex was obtained. In addition, substantially the same durability was obtained when the repair method according to the present invention shown in the first embodiment was used. When the refractory basic unit index of the above-mentioned conventional repair method is set to "100", the repair method according to the present invention requires a large number of refractory bricks at the time of repair as compared with Example 1. Although the improvement effect is low, a refractory basic unit index of “90” is obtained.
【００４７】（実施例３）前記実施例１と同様の取鍋に
より７０ｃｈ使用したのち、スラグライン部Ｓの耐火煉
瓦のうち鋼浴部Ｔとの境界に位置する耐火煉瓦５Ａの残
厚が３０ｍｍ程度になるまで損傷していたため、前記図
２、図３に示した補修方法によらず、図４に示した補修
方法により補修を行った。(Embodiment 3) After using 70 lanes with the same ladle as in the above-mentioned Embodiment 1, the remaining thickness of the refractory brick 5A located at the boundary with the steel bath T among the refractory bricks in the slag line section S is 30 mm. Since it was damaged to the extent that it did, the repair was performed by the repair method shown in FIG. 4 instead of the repair method shown in FIGS.
【００４８】すなわちスラグライン部Ｓのすべての耐火
煉瓦５Ａおよび５，５…を撤去し、鋼浴部Ｔの耐火物上
に木製の仕切板１１を設置し、鋼浴部Ｔの損傷部位に対
し吹き付け施工法によりアルミナ−マグネシア質の湿式
吹き付け材を用いて補修を行ったのち、スラグライン部
Ｓに初期の耐火煉瓦５Ａおよび５と同等の厚みを有する
マグネシア−カーボン質煉瓦を積み直して補修後の耐火
物壁を得た。That is, all the refractory bricks 5A and 5, 5,... Of the slag line section S are removed, and a wooden partition plate 11 is placed on the refractory of the steel bath section T. After repairing using an alumina-magnesia wet spraying material by the spraying construction method, magnesia-carbonaceous bricks having the same thickness as the initial refractory bricks 5A and 5 are re-loaded on the slag line section S and repaired. A refractory wall was obtained.
【００４９】上記補修後の取鍋を実操業に使用した結
果、初期のライニングの場合と略同等の耐用性が得ら
れ、７２ｃｈ使用後に全修理を行うことになった。As a result of using the ladle after the above repairs in actual operation, the same durability as in the case of the initial lining was obtained, and all the repairs were to be performed after using 72 channels.
【００５０】上記本発明の補修方法によるものと、図６
に示した従来の補修方法によるものとを比較したとこ
ろ、補修工期は、上記従来の補修方法による工期指数を
「１００」としたとき、上記本発明の補修方法では若干
工期を要し、「１０５」という工期指数であった。According to the repair method of the present invention and FIG.
As a result of comparison with the conventional repair method shown in (1), when the construction time index according to the above-mentioned conventional repair method is “100”, the repair method of the present invention requires a little construction time and “105”. "Was the construction period index.
【００５１】補修後の耐用性については、上記従来の補
修方法によるものの耐用性指数を「１００」としたと
き、本発明によるものでは「１２０」という耐用性指数
が得られた。本発明による補修方法では補修時に使用し
た耐火物量は従来の補修方法によるものに比べて多いも
のの、補修後の耐用性の向上効果により耐火物単位は、
従来の補修方法による耐火物原単位指数を「１００」と
するとき本発明では「９５」という耐火物原単位指数が
得られた。Regarding the durability after repair, when the durability index of the above-mentioned conventional repair method was set to "100", the durability index of "120" was obtained in the case of the present invention. In the repair method according to the present invention, although the amount of refractory used at the time of repair is larger than that of the conventional repair method, the refractory unit is increased due to the effect of improving the durability after repair,
In the present invention, a refractory basic unit index of "95" was obtained when the refractory basic unit index by the conventional repair method was "100".
【００５２】同様に図６に示した従来の流し込み施工に
よる補修方法と比較したところ、補修工期は、従来の補
修方法による工期指数を「１００」とするとき、本発明
の補修方法では「４０」という大幅に短縮された工期指
数が得られた。Similarly, when compared with the conventional casting method shown in FIG. 6, the repair period is "40" in the repair method of the present invention, when the construction period index of the conventional repair method is "100". A significantly shortened construction period index was obtained.
【００５３】また補修後の耐用性については、上記従来
の補修方法によるものを「１００」とするとき、本発明
による耐用性指数も「１００」と従来と同等の耐用性指
数が得られた。そして前記実施例１および２に示した本
発明による補修方法を用いた場合とも略同等の補修後の
耐用性が得られた。さらに耐火物原単位は、従来の補修
方法によるものの耐火物原単位指数を「１００」とした
とき、本発明による補修方法では前記実施例１および２
と比較して補修時に多くの耐火煉瓦が必要となり、向上
効果は低かったものの「９５」という耐火物原単位指数
が得られた。As for the durability after the repair, when the value obtained by the above-mentioned conventional repair method is set to “100”, the durability index according to the present invention is “100”, which is the same as the conventional durability index. In the case of using the repair method according to the present invention shown in Examples 1 and 2, almost the same durability after repair was obtained. Further, when the refractory basic unit index is set to “100” in the refractory basic unit index according to the conventional repair method, in the repair method according to the present invention, the first and second embodiments are used.
As compared with the above, a large number of refractory bricks were required at the time of repair, and although the improvement effect was low, a refractory basic unit index of “95” was obtained.
【００５４】[0054]
【発明の効果】以上説明したように本発明によれば下記
の効果を得ることができる。As described above, according to the present invention, the following effects can be obtained.
【００５５】１）取鍋の側壁用耐火物壁の使用の効率化
を図ることができ、取鍋コストの低減を可能とすること
ができる。1) The efficiency of use of the refractory wall for the side wall of the ladle can be improved, and the cost of the ladle can be reduced.
【００５６】２）従来の鋼浴部の残厚に対応した厚みの
耐火煉瓦を積み直す補修方法では、補修後の耐火物壁の
耐用寿命が６０ｃｈ程度であったのに対し、本発明によ
る補修後の耐火物壁の耐用寿命は７０ｃｈ程度に延命す
ることができる。2) In the conventional repair method for reloading a refractory brick having a thickness corresponding to the remaining thickness of the steel bath, the service life of the refractory wall after the repair was about 60 ch, but the repair according to the present invention. The service life of the refractory wall later can be extended to about 70 ch.
【００５７】３）従来の鋼浴部の損傷部位に対し流し込
み施工法による補修方法に比べ、本発明による補修方法
によれば、補修後の耐用性は略同等であったが、補修に
要する工期が６０〜６５％の大幅な短縮を図ることがで
き、かつ型枠等を用いないので施工の容易化および省力
化を図ることができる。3) The repair method according to the present invention has almost the same durability after repair as compared with the conventional repair method based on the casting method for the damaged part of the steel bath, but the time required for repair is However, it is possible to achieve a significant shortening of 60 to 65%, and because no formwork or the like is used, simplification of construction and labor saving can be achieved.
【００５８】４）本発明の補修方法において、スラグラ
イン部の耐火煉瓦のうち鋼浴部との境界に位置する耐火
煉瓦を１段残置して補修を行った場合は１０％程度、２
段残置した場合は２０％程度の耐火物原単位の低減効果
が得られた。4) In the repair method of the present invention, when the repair is performed with one step of the refractory brick located at the boundary between the slag line portion and the steel bath portion being repaired, about 10%,
When the step was left, a reduction effect of the refractory basic unit of about 20% was obtained.
【図１】本発明の補修対象である溶融金属容器の一例と
しての取鍋の半部の断面図。FIG. 1 is a sectional view of a half of a ladle as an example of a molten metal container to be repaired according to the present invention.
【図２】（Ａ）〜（Ｃ）は請求項１記載の発明の工程を
示す説明図。FIGS. 2A to 2C are explanatory views showing the steps of the invention according to claim 1;
【図３】（Ａ）〜（Ｃ）は請求項２記載の発明の工程を
示す説明図。FIGS. 3A to 3C are explanatory views showing steps of the invention according to claim 2;
【図４】（Ａ）〜（Ｃ）は請求項３記載の発明の工程を
示す説明図。FIGS. 4A to 4C are explanatory diagrams showing the steps of the invention according to claim 3;
【図５】（Ａ），（Ｂ）は従来の技術を示す工程説明
図。FIGS. 5A and 5B are process explanatory views showing a conventional technique.
【図６】（Ａ），（Ｂ）は従来の他の技術を示す工程説
明図。6A and 6B are process explanatory views showing another conventional technique.
１ 溶融金属容器の一例としての取鍋 ２ パーマネント煉瓦層 ３ サブパーマネント煉瓦層 ５，５’ 耐火煉瓦 ５Ａ 残存耐火煉瓦（スラグライン部Ｓの耐火煉瓦のう
ち鋼浴部Ｔとの境界に位置する耐火煉瓦） ６ 湿式吹き付け材 ７ 型枠 １０ 湿式吹き付け材吹き付け装置 １１ 仕切板DESCRIPTION OF SYMBOLS 1 Ladle as an example of a molten metal container 2 Permanent brick layer 3 Sub-permanent brick layer 5,5 'Refractory brick 5A Remaining refractory brick (The refractory brick located in the slag line section S at the boundary with the steel bath section T Brick) 6 Wet spraying material 7 Formwork 10 Wet spraying material spraying device 11 Partition plate
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） // Ｃ２１Ｃ 7/00 Ｃ２１Ｃ 7/00 Ｑ (72)発明者 田 淵 幸 春 東京都千代田区九段北四丁目１番７号 品 川白煉瓦株式会社内 (72)発明者 若 江 智 暁 東京都千代田区九段北四丁目１番７号 品 川白煉瓦株式会社内 Ｆターム(参考） 4E014 BB01 BB02 4K013 AA09 CF13 CF19 4K051 AA00 AB03 LA02 LF00 LH00──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) // C21C 7/00 C21C 7/00 Q (72) Inventor Yukiharu Tabuchi Kudan Kita-shi, Chiyoda-ku, Tokyo 1-7-7 Shinagawa White Brick Co., Ltd. (72) Inventor Tomoaki Wakae 4-7-1 Kudankita, Chiyoda-ku, Tokyo 4-71 Shinagawa White Brick Co., Ltd. F-term (reference) 4E014 BB01 BB02 4K013 AA09 CF13 CF19 4K051 AA00 AB03 LA02 LF00 LH00
Claims (3)
の補修において、スラグライン部の耐火煉瓦のうち鋼浴
部との境界に位置する耐火煉瓦の残存厚が原寸の２／３
以上であるとき、当該煉瓦を１段以上残置してそれより
上部の耐火煉瓦を積み直し、残余の損傷部位に対し吹き
付け施工法により湿式吹き付け材を吹き付けて補修する
ことを特徴とする溶融金属容器における耐火物壁の補修
方法。In repairing a damaged portion of a refractory lining of a molten metal container, the remaining thickness of a refractory brick located at a boundary with a steel bath in a slag line portion is 2/3 of an original size.
In the above case, the brick is left as one or more stages, the refractory bricks thereabove are re-stacked, and the remaining damaged portion is repaired by spraying a wet spray material by a spraying method. Repair method for refractory walls in Japan.
の補修において、スラグライン部の耐火煉瓦のうち鋼浴
部との境界に位置する耐火煉瓦の残存厚が原寸の２／３
未満かつ５０ｍｍ以上であるとき、当該煉瓦を１段以上
残置してそれより上部の耐火煉瓦を撤去し、残置した耐
火煉瓦の上面に仕切板を設置し、この仕切板より下位の
損傷部位に対し吹き付け施工法により湿式吹き付け材を
吹き付けて補修し、次いで前記残置した耐火煉瓦と吹き
付け施工した湿式吹き付け材の上面に耐火煉瓦を積み直
して補修することを特徴とする溶融金属容器における耐
火物壁の補修方法。2. In repairing a damaged portion of a refractory wall lining a molten metal container, the remaining thickness of the refractory brick located at the boundary with the steel bath in the slag line portion is 2/3 of the original size.
When it is less than 50 mm or more, the brick is left in one or more steps, the refractory brick above it is removed, and a partition plate is installed on the upper surface of the remaining refractory brick. Repairing by spraying a wet spraying material by spraying construction method, and then reloading and repairing the refractory brick on the upper surface of the remaining refractory brick and the sprayed wet spraying material to repair the refractory wall in the molten metal container Repair method.
の補修において、スラグライン部の耐火煉瓦のうち鋼浴
部との境界に位置する耐火煉瓦の残存厚が５０ｍｍ未満
であるとき、スラグライン部の耐火煉瓦をすべて撤去
し、鋼浴部の残存する耐火物壁の上面に仕切板を設置
し、鋼浴部の損傷部位に対し吹き付け施工法により湿式
吹き付け材を吹き付け施工したのちスラグライン部の耐
火煉瓦を積み直して補修することを特徴とする溶融金属
容器における耐火物壁の補修方法。3. The repair of a damaged portion of a refractory wall of a lining of a molten metal container, wherein when the remaining thickness of the refractory brick located at the boundary with the steel bath in the slag line portion is less than 50 mm, Remove all the refractory bricks in the line section, install a partition plate on the upper surface of the refractory wall where the steel bath section remains, spray the wet spray material by the spraying method on the damaged part of the steel bath section, and then construct the slag line A method for repairing a refractory wall in a molten metal container, comprising reloading and repairing a portion of a refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112432A JP2002310568A (en) | 2001-04-11 | 2001-04-11 | Method for repairing refractory wall for molten metal container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112432A JP2002310568A (en) | 2001-04-11 | 2001-04-11 | Method for repairing refractory wall for molten metal container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002310568A true JP2002310568A (en) | 2002-10-23 |
Family
ID=18963849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001112432A Withdrawn JP2002310568A (en) | 2001-04-11 | 2001-04-11 | Method for repairing refractory wall for molten metal container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002310568A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005262262A (en) * | 2004-03-17 | 2005-09-29 | Sanyo Special Steel Co Ltd | Ladle having slag line brick for melting stainless steel |
| CN100389912C (en) * | 2005-08-24 | 2008-05-28 | 崔东瑞 | Construction method for ladle integral pouring and casing pouring liner |
| CN100389910C (en) * | 2005-08-22 | 2008-05-28 | 崔东瑞 | Ladle neck bush pouring technique |
| JP2010159950A (en) * | 2008-12-08 | 2010-07-22 | Nippon Steel Engineering Co Ltd | Method of dismounting furnace with multilayer refractory structure |
| CN101985173A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Steel ladle lining covering method |
| CN101985171A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Method for digging and patching ladle lining bricks |
| CN102019417A (en) * | 2010-11-17 | 2011-04-20 | 莱芜钢铁股份有限公司 | Method for building steel ladle pouring working lining |
| JP2013072137A (en) * | 2011-09-29 | 2013-04-22 | Shinagawa Refractories Co Ltd | Lining structure of vessel for steel making |
| CN106312035A (en) * | 2016-09-30 | 2017-01-11 | 北京利尔高温材料股份有限公司 | Repair mode for circumferential weld in ladle slag line part |
| 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 |
| CN107234232A (en) * | 2017-07-05 | 2017-10-10 | 郑州振东科技有限公司 | The synthesis repairing method of ladle liner brick |
| CN107414066A (en) * | 2017-09-18 | 2017-12-01 | 北京利尔高温材料股份有限公司 | A kind of carbon-free ladle wall subsidizes technique |
| CN109865827A (en) * | 2019-04-01 | 2019-06-11 | 山东钢铁集团日照有限公司 | A method of improving ladle slag line brick service life |
| CN113333726A (en) * | 2021-06-09 | 2021-09-03 | 攀钢集团研究院有限公司 | Hot metal ladle building structure and maintenance method |
-
2001
- 2001-04-11 JP JP2001112432A patent/JP2002310568A/en not_active Withdrawn
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4674744B2 (en) * | 2004-03-17 | 2011-04-20 | 山陽特殊製鋼株式会社 | Ladle with slag line bricks for melting stainless steel |
| JP2005262262A (en) * | 2004-03-17 | 2005-09-29 | Sanyo Special Steel Co Ltd | Ladle having slag line brick for melting stainless steel |
| CN100389910C (en) * | 2005-08-22 | 2008-05-28 | 崔东瑞 | Ladle neck bush pouring technique |
| CN100389912C (en) * | 2005-08-24 | 2008-05-28 | 崔东瑞 | Construction method for ladle integral pouring and casing pouring liner |
| JP2010159950A (en) * | 2008-12-08 | 2010-07-22 | Nippon Steel Engineering Co Ltd | Method of dismounting furnace with multilayer refractory structure |
| JP4528876B2 (en) * | 2008-12-08 | 2010-08-25 | 新日鉄エンジニアリング株式会社 | Dismantling method of multi-layer refractory furnace |
| CN101985173B (en) * | 2010-07-20 | 2012-05-30 | 郑州振东科技有限公司 | Steel ladle lining covering method |
| CN101985173A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Steel ladle lining covering method |
| CN101985171A (en) * | 2010-07-20 | 2011-03-16 | 郑州振东耐磨材料有限公司 | Method for digging and patching ladle lining bricks |
| CN102019417A (en) * | 2010-11-17 | 2011-04-20 | 莱芜钢铁股份有限公司 | Method for building steel ladle pouring working lining |
| CN102019417B (en) * | 2010-11-17 | 2012-10-03 | 山东钢铁股份有限公司 | Method for building steel ladle pouring working lining |
| JP2013072137A (en) * | 2011-09-29 | 2013-04-22 | Shinagawa Refractories Co Ltd | Lining structure of vessel for steel making |
| CN106312035A (en) * | 2016-09-30 | 2017-01-11 | 北京利尔高温材料股份有限公司 | Repair mode for circumferential weld in ladle slag line part |
| CN106312035B (en) * | 2016-09-30 | 2018-08-21 | 北京利尔高温材料股份有限公司 | A kind of repairing method of ladle slag line position circumferential weld |
| 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 |
| CN107234232A (en) * | 2017-07-05 | 2017-10-10 | 郑州振东科技有限公司 | The synthesis repairing method of ladle liner brick |
| CN107414066A (en) * | 2017-09-18 | 2017-12-01 | 北京利尔高温材料股份有限公司 | A kind of carbon-free ladle wall subsidizes technique |
| CN109865827A (en) * | 2019-04-01 | 2019-06-11 | 山东钢铁集团日照有限公司 | A method of improving ladle slag line brick service life |
| CN113333726A (en) * | 2021-06-09 | 2021-09-03 | 攀钢集团研究院有限公司 | Hot metal ladle building structure and maintenance method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002310568A (en) | Method for repairing refractory wall for molten metal container | |
| CN106435073B (en) | A kind of blast furnace lining monolithic casting construction method for substituting spray paint and refractory brick | |
| CN100389911C (en) | Casing patch method for ladle brickwork neck bush | |
| CN107299171B (en) | Method for repairing refractory lining on side wall of blast furnace hearth and refractory lining body | |
| JP5544790B2 (en) | Refractory construction method | |
| JP2768785B2 (en) | Method of lining and repair of molten steel pot | |
| JP2000212624A (en) | Repair of lining refractory in torpedo ladle | |
| JP6984622B2 (en) | How to repair a torpedo car | |
| JP2003231910A (en) | Lining method for contraction section of converter | |
| EP1852666B1 (en) | Reverse slant lining structure of furnace with reduced part structure | |
| JP2920951B2 (en) | Repair method of refractory wall in ladle | |
| JPH10156517A (en) | Method for working monolithic back up lining in molten metal vessel | |
| JP4758068B2 (en) | Construction method and kiln | |
| JP3762743B2 (en) | Lining structure of high durability secondary smelting vessel | |
| JPH0740035A (en) | Ladle for molten metal | |
| JPS6154510B2 (en) | ||
| JPH09159373A (en) | Applying method of refractory lining for furnace | |
| JP2022146594A (en) | Repair structure and repair method for electric furnace tap hole brick | |
| JP3769256B2 (en) | RH degassing tank bottom, RH degassing tank, and refractory block manufacturing method | |
| JP3044034B1 (en) | Method of repairing pot with spout and core used in the method | |
| JP2013043210A (en) | Method for forming dry coating material on inside surface of tundish and calcining frame for the dry coating material | |
| JP4516934B2 (en) | Refining vessel repair method | |
| JP2773226B2 (en) | Ladle bottom lining structure | |
| JP2000018838A (en) | Lining structure of molten metal container | |
| JPH0755351A (en) | Structure and method for lining molten metal container |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20080701 |