JPS61206558A - Construction of nozzle for steel making - Google Patents
Construction of nozzle for steel makingInfo
- Publication number
- JPS61206558A JPS61206558A JP4754185A JP4754185A JPS61206558A JP S61206558 A JPS61206558 A JP S61206558A JP 4754185 A JP4754185 A JP 4754185A JP 4754185 A JP4754185 A JP 4754185A JP S61206558 A JPS61206558 A JP S61206558A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- mass brick
- upper nozzle
- brick
- mass
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
Abstract
Description
【発明の詳細な説明】
−・、−の
この発明は製鋼用ノズル構造の改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION This invention of -., - relates to an improvement of a nozzle structure for steel manufacturing.
ｍ迷１日Ｕ（
製鋼用取鍋の底板にマスれんがを設置し、そのマスれん
がの内側に上ノズルを設け、その上ノズルにスライディ
ングノズルを連結した構造は周知である。A structure in which a mass brick is installed on the bottom plate of a steelmaking ladle, an upper nozzle is provided inside the mass brick, and a sliding nozzle is connected to the upper nozzle is well known.
１が ′しようとする１ 。1 tries to do 1.
このような取鍋の底部構造においては、マスれんがの寿
命は上ノズルとの目地部の損傷により大きく左右される
。従来技術においては、上ノズルを交換するたびに上ノ
ズルとマスれんがとの目地部のに１傷が進展する。その
結果、たとえば大型の敢鍋における有効寿命は３０〜４
０回程度のものであった。In such a ladle bottom structure, the life of the mass brick is greatly affected by damage to the joint with the upper nozzle. In the conventional technology, each time the upper nozzle is replaced, a scratch develops in the joint between the upper nozzle and the mass brick. As a result, for example, the useful life of a large pot is 30 to 4
It happened about 0 times.
発」し久１」１
この発明の目的は前述のような従来技術の実情を考慮し
て、取鍋における有効寿命を増大させることのできる製
鋼用ノズル構造を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a steelmaking nozzle structure that can increase the useful life of a ladle, taking into consideration the actual state of the prior art as described above.
１１悲１１
この目的を達成するだめの本発明の要旨とするところは
、取鍋の底板にマスれんがを設置し、そのマスれんがの
内側に上ノズルを設けた製鋼用ノズル構造において、上
ノズルの上方部と下方部とを分割して二層構造にしたこ
とを特徴とする製鋼用ノズル構造にある。11 Sad 11 The gist of the present invention to achieve this object is that in a steelmaking nozzle structure in which a mass brick is installed on the bottom plate of a ladle and an upper nozzle is provided inside the mass brick, the upper nozzle is A nozzle structure for steel making is characterized in that an upper part and a lower part are divided to form a two-layer structure.
Ｌｌ、を、′１するための
取鍋の底板１に下部マスれんが２を設置し、その下部マ
スれんが２の上に上部マスれんが３を設置し、その上部
マスれんが３の内側に上ノズル４を設置し、この上ノズ
ル４を周知のスライディングノズル（図示せず）に連結
する。上部マスれんが３または／及び上ノズル４を分割
して二層構造にする。A lower mass brick 2 is installed on the bottom plate 1 of the ladle for making Ll, '1, an upper mass brick 3 is installed on top of the lower mass brick 2, and an upper nozzle 4 is installed inside the upper mass brick 3. is installed, and the upper nozzle 4 is connected to a well-known sliding nozzle (not shown). The upper mass brick 3 and/or the upper nozzle 4 are divided to form a two-layer structure.
たとえば、上マスれんが３は割れ対策として内側部分３
ａをＭｏｏ系で作り、外側部分３ｂをＡ Ｑ２０３系ま
たはジルコン系で作るのが好ましい。For example, the upper mass brick 3 has an inner part 3 to prevent cracking.
Preferably, a is made of Moo-based material and the outer portion 3b is made of AQ203-based material or zircon-based material.
上ノズル４に接続するスライディングノズルのプレート
〈図示せず）は交換が多いため、そのプレートに接続す
る上ノズル４の下方部分４ｂのみを交換可能にするため
に上ノズル４を分割する。Since the plate (not shown) of the sliding nozzle connected to the upper nozzle 4 is often replaced, the upper nozzle 4 is divided so that only the lower portion 4b of the upper nozzle 4 connected to the plate can be replaced.
上部マスれんが３の内側部分３ａ及び上ノズル４の材質
として高耐蝕性のＭＣＩＱ系を用いれば、全体として上
ノズル４の交換を極力少なくすることができる。If a highly corrosion-resistant MCIQ material is used as the material for the inner portion 3a of the upper mass brick 3 and the upper nozzle 4, replacement of the upper nozzle 4 as a whole can be minimized.
及１１
第１図において、符号１は製鋼用取鍋の底板の一部を示
している。この底板１の上には円環状の下部マスれんが
２が設けである。その下部マスれんが２の上には上部マ
スれんが３が設けである。この上部マスれんが３の内側
には上ノズル４が設けである。この上ノズル４の下側に
は周知のスライディングノズル（図示せず）のプレート
が接続される。and 11 In Fig. 1, reference numeral 1 indicates a part of the bottom plate of a ladle for steel making. On this bottom plate 1, an annular lower mass brick 2 is provided. An upper mass brick 3 is provided on top of the lower mass brick 2. An upper nozzle 4 is provided inside the upper mass brick 3. A plate of a well-known sliding nozzle (not shown) is connected to the lower side of the upper nozzle 4.
上部マスれんが３は内側と外側で分割して二層構造にし
て、割れ対策として内側部分３ａをＭｇＯ系の材料でつ
くり、外側部分３ｂをＡ９２０３系材料またはジルコン
系材料で作る。符＠３Ｃは内側部分３ａと外側部分３ｂ
との分割面を示す。The upper mass brick 3 is divided into an inner and outer part to have a two-layer structure, and as a countermeasure against cracking, the inner part 3a is made of MgO-based material, and the outer part 3b is made of A9203-based material or zircon-based material. The symbol @3C is the inner part 3a and the outer part 3b
Shows the dividing plane with.
上ノズル４は、マスれんが（すなわち下部マスれんが２
と上部マスれんが３）に隣接する上ノズル上方部４ａと
、スライディングノズル“側の下方部４ｂ （下部マ
スれんが２とは接触せず底板１にのみ隣接している）と
に分割されており、二層構造となでいる。上ノズル上方
部４ａと上ノズル下方部４ｂとは別体であり、上ノズル
下方部４のみを交換することができるようになっている
。符号４Ｃはそれらの分割面を示している。The upper nozzle 4 is used for mass bricks (i.e. lower mass bricks 2
and an upper nozzle upper part 4a adjacent to the upper mass brick 3), and a lower part 4b on the sliding nozzle side (not in contact with the lower mass brick 2 and adjacent only to the bottom plate 1), It has a two-layer structure.The upper part 4a of the upper nozzle and the lower part 4b of the upper nozzle are separate parts, so that only the lower part 4 of the upper nozzle can be replaced.Symbol 4C is the division thereof. It shows the face.
上マスれ／υが３の内側部分３ａを形成するＭ（１０系
材料としては、たとえばＭｏｏ−ＣｌＭａ Ｏ，ｆｖｌ
＋Ｊ Ｏスピネルなどが使用できる。M forming the inner part 3a with upper mass/υ of 3 (10 series materials include, for example, Moo-ClMa O, fvl
+JO spinel etc. can be used.
同様に上ノズル４もＭａＯ−Ｃ，Ｍｏｏ、ＭｇＯスピネ
ルなどのＭＱＯ系材料で作るのが望ましい。Similarly, the upper nozzle 4 is also desirably made of MQO-based material such as MaO-C, Moo, MgO spinel, or the like.
なお、上ノズル４の外周面とマスれんが（すなわち下部
マスれんが２と上部マスれんが３）との間には目地材５
が設けである。Note that there is a joint material 5 between the outer peripheral surface of the upper nozzle 4 and the mass bricks (i.e., the lower mass brick 2 and the upper mass brick 3).
is the provision.
ＬＬへ１１
この発明によれば、上ノズル４を上方部４ａと下方部４
ｂに分割して二層構造としたため、スライディングノズ
ルのプレートと接続する上ノズル下方部分４ｂを損傷し
ても、その旧ノズル下方部分４ｂのみを交換すればよく
、上ノズルの全体を交換する必要がなく、有効寿命を著
しく増大することができる。To LL 11 According to this invention, the upper nozzle 4 is connected to the upper part 4a and the lower part 4.
Since the upper nozzle lower part 4b connected to the plate of the sliding nozzle is damaged, it is only necessary to replace the old nozzle lower part 4b, and it is not necessary to replace the entire upper nozzle. , and the useful life can be significantly increased.
ぎらに、上ノズル４と上部マスれんが３の内側部分３ａ
の材質を高耐蝕性のＭ（ＩＱ系の材料で作れば、上ノズ
ル４の交換をほとんど皆無に近くすることができる。In the glare, the upper nozzle 4 and the inner part 3a of the upper mass brick 3
If the upper nozzle 4 is made of a highly corrosion-resistant M (IQ) material, replacement of the upper nozzle 4 can be almost eliminated.
第１図はこの発明によるＭｌ用ノズル構造の一例を示す
概略縦断面図である。
１・・・取消の底板
２・・・下部マスれんが
３・・・上部マスれんが
４・・・上ノズル
５・・・目地材FIG. 1 is a schematic vertical cross-sectional view showing an example of a nozzle structure for Ml according to the present invention. 1... Bottom plate of cancellation 2... Lower mass brick 3... Upper mass brick 4... Upper nozzle 5... Joint material
Claims (3)
がの内側に上ノズルを設けた製鋼用ノズル構造において
、上ノズルの上方部と下方部とを分割して二層構造にし
たことを特徴とする製鋼用ノズル構造。(1) In a steelmaking nozzle structure in which a mass brick is installed on the bottom plate of the steel plate and an upper nozzle is provided inside the mass brick, the upper and lower parts of the upper nozzle are divided to create a two-layer structure. A steelmaking nozzle structure featuring:
設けた上部マスれんがで構成し、その上部マスれんがの
内側部分と外側部分とを分割して二層構造としたことを
特徴とする特許請求の範囲第１項に記載した製鋼用ノズ
ル構造。(2) The mass brick is composed of a lower mass brick on the steel side and an upper mass brick placed above it, and the upper mass brick is divided into an inner part and an outer part to form a two-layer structure. A steelmaking nozzle structure according to claim 1.
ｇＯ−Ｃ、ＭｇＯまたはＭｇＯスピネルとしたことを特
徴とする特許請求の範囲第２項に記載した製鋼用ノズル
構造。(3) The material of the inner part of the upper mass brick and the upper nozzle is M.
The steelmaking nozzle structure according to claim 2, characterized in that it is made of gO-C, MgO, or MgO spinel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4754185A JPS61206558A (en) | 1985-03-12 | 1985-03-12 | Construction of nozzle for steel making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4754185A JPS61206558A (en) | 1985-03-12 | 1985-03-12 | Construction of nozzle for steel making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61206558A true JPS61206558A (en) | 1986-09-12 |
Family
ID=12778000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4754185A Pending JPS61206558A (en) | 1985-03-12 | 1985-03-12 | Construction of nozzle for steel making |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61206558A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007167956A (en) * | 2005-12-20 | 2007-07-05 | Heraeus Electro-Nite Internatl Nv | Ceramic seating stone and metallurgical vessel |
-
1985
- 1985-03-12 JP JP4754185A patent/JPS61206558A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007167956A (en) * | 2005-12-20 | 2007-07-05 | Heraeus Electro-Nite Internatl Nv | Ceramic seating stone and metallurgical vessel |
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