JPS63140287A - Method of repairing molten metal vessel - Google Patents
Method of repairing molten metal vesselInfo
- Publication number
- JPS63140287A JPS63140287A JP28640386A JP28640386A JPS63140287A JP S63140287 A JPS63140287 A JP S63140287A JP 28640386 A JP28640386 A JP 28640386A JP 28640386 A JP28640386 A JP 28640386A JP S63140287 A JPS63140287 A JP S63140287A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- refractory
- slag
- blast furnace
- lining
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 title claims description 15
- 229910052751 metal Inorganic materials 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 8
- 239000002893 slag Substances 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011823 monolithic refractory Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、たとえば高炉鋼やトビードカー等の溶湯容器
の補修方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for repairing molten metal vessels such as blast furnace steel and tobbed cars.
高炉から出銑された溶銑は高炉鋼またはトビードカー等
で製鋼工場に運ばれ、一旦装入鋼に移し替えられた後、
転炉に装入される。The hot metal tapped from the blast furnace is transported to the steelmaking factory in blast furnace steel or tobee cars, and once transferred to charging steel,
Charged to converter.
これら高炉鋼またはトビードカーの内張耐火物は、近年
の溶銑予備処理（脱Ｓｉ、脱Ｓ、脱Ｐ等）の発展により
それぞれの使用部位に要求される性状に適した材事４を
ゾーンライニングされている。These blast furnace steel or tobeed car lining refractories are zone-lined using materials suitable for the properties required for each area of use due to recent developments in hot metal pretreatment (Si, S, P, etc.). ing.
例えば説Ｐスラグの接触する部位には、耐溶損、ｔ！Ｉ
、１ＩＪｌ熱的スポーリング性に優れたＡ２２０３−ｓ
ｒ Ｃ−Ｃ煉瓦等の高級煉瓦が使用されている。For example, parts that come into contact with theory P slag are resistant to melting and t! I
, 1IJl A2203-s with excellent thermal spalling properties
r High-grade bricks such as C-C bricks are used.
上記高級煉瓦の使用により、内張耐火物の残）りが最も
早く少なくなる部位は敷中央部となっている。これは、
受銑作業時に溶銑が敷中央部に直接光たるので、その落
下エネルギーにより敷中央部が摩耗または剥〜１して激
しく損傷するためと考えられる。Due to the use of the above-mentioned high-grade bricks, the area where the remaining refractory lining decreases fastest is the center of the floor. this is,
This is thought to be because hot metal shines directly onto the center of the bedding during pig iron receiving work, and the falling energy causes the center of the bedding to wear out or peel off, causing severe damage.
その対策として、例えば第２図に示すように、高炉鋼２
の鉄皮４の内側に設けられた内張耐火１力６の敷中央部
６ａを嵩上げすることにより、耐火物６の肉厚を厚くす
る方法が試みられたが、１２耗、剥離の現象を効果的に
解消することができなかった。また、内張耐火物６の材
質を種々変更したが、やはり上記現象を解決することが
できなかった。As a countermeasure, for example, as shown in Fig. 2, blast furnace steel 2
Attempts have been made to increase the wall thickness of the refractory 6 by increasing the central part 6a of the refractory lining 6 provided inside the steel shell 4, but this method has not prevented wear and peeling phenomena. could not be resolved effectively. Furthermore, although various changes were made to the material of the refractory lining 6, the above-mentioned phenomenon could not be solved.
そこで、従来では、第３図に示すように、内張耐火物６
の敷中央部６ａの窪み部（：（１国部）８にクールを含
む不定形耐火物１０を！ことえぽＧＯＫｇｊ儲入し焼付
けることにより補修を行なう方法が一般的となっている
。Therefore, conventionally, as shown in Fig. 3, the lining refractory 6
A common method of repair is to apply a monolithic refractory 10 containing cool to the recessed part (: (1 country part) 8) of the central part 6a of the floor and bake it.
しかしながら、この方法では、１〜２回の受銑によって
補修部がなくなってしまい、経済的、作業的に非効率的
であった。However, in this method, the repaired portion is lost after one or two pourings, making it economically and operationally inefficient.
本発明は上記事情にもとづいてなされたもので、その目
的とするところは、安価でかつ確実、簡単に補修するこ
とができるようにした溶湯容器の補修方法を提供するこ
とにある。The present invention has been made based on the above-mentioned circumstances, and its object is to provide a method for repairing a molten metal container that can be repaired inexpensively, reliably, and easily.
本発明は、上記問題を解決するために、溶湯を収容する
溶湯容器における内張耐火物の損傷部に対してスラグを
注入し冷ｕ１固化させることにより上記損（４部を補修
することを特徴とするものである。In order to solve the above-mentioned problem, the present invention is characterized in that the above-mentioned loss (4 parts) is repaired by injecting slag into the damaged part of the lining refractory in a molten metal container containing molten metal and cooling and solidifying the slag. That is.
〔作用〕
従来大量に廃棄していたスラグを内張耐火物の損（４部
にコーティングする。[Operation] The slag, which was conventionally discarded in large quantities, is coated in four parts to reduce the loss of the refractory lining.
以下、本発明の一実施例を第１図を参照しながら説明す
る。An embodiment of the present invention will be described below with reference to FIG.
第１図中１２は高炉鋼（溶湯容器）であり、この高炉鍋
１２は鉄皮１４の内側に内張耐火物１６を設けた構造珈
なっている。この内張耐火物１６は、受銑によりに１傷
しており、特に、敷中央部１６ａの損（カが進行してい
る。Reference numeral 12 in FIG. 1 is blast furnace steel (molten metal container), and this blast furnace pot 12 has a structure in which a refractory lining 16 is provided inside a steel shell 14. This lining refractory 16 has one damage caused by the pig iron, and the damage is particularly progressing in the central part 16a of the bed.
この高炉鋼１２における内張耐火物１６の敷中央部１６
ａのαみ部（損ｆｎ部）１８に、高炉で弁士しタンボ鍋
に収容した高炉スラグ２０を溶融状態で３〜７トン注入
し、約１２時間から２４時間放置して冷却洞化する。そ
の後、高炉に配車し使用する。The central part 16 of the lining refractory 16 in this blast furnace steel 12
3 to 7 tons of molten blast furnace slag 20, which has been prepared in a blast furnace and stored in a tank pot, is poured into the alpha part (loss fn part) 18 of a, and left for about 12 to 24 hours to form a cooling cave. After that, it is delivered to the blast furnace and used.
このような方法によれば、敷中央ＢＣ１６ａを大量のス
ラグ２０によりコーティングすることができるので、安
価でかつ確実、簡単に内張耐火物１６を補修することが
でき、これにより５〜１０回程度、受銑寿命を延長する
ことができる。According to such a method, the central BC 16a can be coated with a large amount of slag 20, so the lining refractory 16 can be repaired inexpensively, reliably, and easily, and thereby, the refractory lining 16 can be repaired about 5 to 10 times. , the service life of the pig iron can be extended.
なお、この場合、スラグ２０を沈静させた後、スラグ２
０の密度を高めるために少量の砂あるいは煉瓦屑をスラ
グ２０中に没入することにより、さらに５〜１０回程度
、受銑寿命を延長することができる。In this case, after the slag 20 has settled down, the slag 2
By immersing a small amount of sand or brick waste into the slag 20 to increase the density of the iron, the life of the pig iron receiver can be extended by about 5 to 10 times.
以上説明したように本発明によれば、溶湯を収容する溶
湯容器に６ける内張耐火物の損傷部に対してスラグを注
入し冷却固化させることにより損傷部を補修するように
したから、安価でかつ確実、簡単に補修することができ
る等の優れた効果を秦ずろ。As explained above, according to the present invention, slag is injected into the damaged part of the lining refractory in the molten metal container containing the molten metal and is cooled and solidified to repair the damaged part. Qin Zuro has excellent effects such as being large, reliable, and easy to repair.
第１図は本発明の一実施例を示す断面図、第２図は従来
例を示す断面図、第３図は伯の従来例を示す断面図であ
る。
１２・・・溶湯容器（高炉鋼）、１６・・・内張耐火物
、１８・・・ＩＱ ＋ｆｉ部（窪み部）、２０・・・ス
ラグ。
出願人代理人 弁理士 鈴 江 武 彦第１図FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing a conventional example, and FIG. 3 is a sectional view showing a conventional example. 12... Molten metal container (blast furnace steel), 16... Lining refractory, 18... IQ +fi part (dent part), 20... Slag. Applicant's agent Patent attorney Takehiko Suzue Figure 1
Claims (1)
対してスラグを注入し冷却固化させることにより上記損
傷部を補修することを特徴とする溶湯容器の補修方法。A method for repairing a molten metal container, which comprises repairing a damaged part of a lining refractory in a molten metal container containing molten metal by injecting slag into the damaged part and cooling and solidifying the damaged part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28640386A JPS63140287A (en) | 1986-12-01 | 1986-12-01 | Method of repairing molten metal vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28640386A JPS63140287A (en) | 1986-12-01 | 1986-12-01 | Method of repairing molten metal vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63140287A true JPS63140287A (en) | 1988-06-11 |
Family
ID=17703948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28640386A Pending JPS63140287A (en) | 1986-12-01 | 1986-12-01 | Method of repairing molten metal vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63140287A (en) |
-
1986
- 1986-12-01 JP JP28640386A patent/JPS63140287A/en active Pending
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