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JPH0129625B2 - - Google Patents
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JPH0129625B2 - - Google Patents

Info

Publication number
JPH0129625B2
JPH0129625B2 JP1379381A JP1379381A JPH0129625B2 JP H0129625 B2 JPH0129625 B2 JP H0129625B2 JP 1379381 A JP1379381 A JP 1379381A JP 1379381 A JP1379381 A JP 1379381A JP H0129625 B2 JPH0129625 B2 JP H0129625B2
Authority
JP
Japan
Prior art keywords
nozzle
opening
fixed
sliding
plate
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.)
Expired
Application number
JP1379381A
Other languages
Japanese (ja)
Other versions
JPS57130763A (en
Inventor
Kyomi Taguchi
Jusuke Shiratani
Taizo Sera
Takeshi Yoshida
Katsusuke Shiraishi
Masaru Ishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
TYK Corp
Original Assignee
Nippon Kokan Ltd
TYK Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Kokan Ltd, TYK Corp filed Critical Nippon Kokan Ltd
Priority to JP1379381A priority Critical patent/JPS57130763A/en
Publication of JPS57130763A publication Critical patent/JPS57130763A/en
Publication of JPH0129625B2 publication Critical patent/JPH0129625B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14Closures
    • B22D41/22Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/42Features relating to gas injection

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Description

【発明の詳細な説明】 この発明は、溶融金属用容器の摺動ノズル装置
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sliding nozzle device for a container for molten metal.

従来、タンデイツシユ又は取鍋等の溶融金属用
容器の摺動ノズル装置は、第1図に示されるよう
に構成されていた。
Conventionally, a sliding nozzle device for a container for molten metal, such as a tundish or a ladle, has been constructed as shown in FIG.

第1図において、1は溶融金属用容器の底壁2
に設けられた上部固定ノズル、3は、上部固定ノ
ズル1の下部に固定された、上部固定ノズル1と
合致する開口4を有する固定板、5は、固定板3
の下部に摺動自在に取付けられた、固定板3の開
口4と合致する開口6を有する摺動板、7は摺動
板5の開口6の下部に固定された下部摺動ノズル
である。
In Fig. 1, 1 is the bottom wall 2 of the container for molten metal.
3 is a fixed plate fixed to the lower part of the upper fixed nozzle 1 and has an opening 4 that matches the upper fixed nozzle 1; 5 is a fixed plate 3;
7 is a lower sliding nozzle fixed to the lower part of the opening 6 of the sliding plate 5.

上記固定板3の開口4の内周部には、ポーラス
な耐火物でなるガス吹込みリング8が固着されて
いて、このガス吹込みリング8からアルゴン
(Ar)ガス等の不活性ガスを上部固定ノズル1内
に吹込むことによつて、上部固定ノズル1が摺動
板5により閉鎖されているとき、上部固定ノズル
1内溶鋼の凝固により上部固定ノズル1が閉塞さ
れるのを防止していた。
A gas blowing ring 8 made of porous refractory is fixed to the inner circumference of the opening 4 of the fixing plate 3, and an inert gas such as argon (Ar) gas is supplied from the gas blowing ring 8 to the upper part. By blowing into the fixed nozzle 1, when the upper fixed nozzle 1 is closed by the sliding plate 5, the upper fixed nozzle 1 is prevented from being blocked by solidification of the molten steel in the upper fixed nozzle 1. Ta.

ところが、上記ガス吹込みリング8は、ポーラ
スな耐火物で出来ているので、耐溶損性が低く、
固定板3の寿命低下の原因となつている。また、
ポーラスな耐火物は、通気量にバラツキが生じ易
いので、吹込む不活性ガスの流量が不安定とな
り、時として、上部固定ノズル1を閉塞させてし
まう虞れがあつた。
However, since the gas injection ring 8 is made of porous refractory material, it has low erosion resistance.
This causes a decrease in the life of the fixed plate 3. Also,
Since porous refractories tend to have variations in the amount of ventilation, the flow rate of the inert gas blown into the refractory becomes unstable, and there is a risk that the upper fixed nozzle 1 may be clogged.

この発明は、上記問題点を解決するためになさ
れたものであつて、 溶融金属用容器の底壁に設けられた上部固定ノ
ズルと、 前記上部固定ノズルの下部に固定された、前記
上部固定ノズルと合致する開口を有する固定板
と、 前記固定板の下部に摺動自在に取付けられた、
前記固定板の開口と合致する開口を有する摺動板
と、 前記摺動板の開口の下部に固定された下部摺動
ノズルと から構成される摺動ノズル装置において、 前記固定板を、その開口に、外周壁にそつて溝
が形成され、前記溝から前記開口の中心に向つて
放射状に複数個の小孔が穿設された、耐溶損性に
優れた耐火物でなるガス吹込みリングを嵌合させ
たもので構成し、前記固定板の外部から、前記ガ
ス吹込みリングの溝内に導入した不活性ガスを、
前記複数個の小孔から前記上部固定ノズル内に吹
込むようにしてなることに特徴を有する。
The present invention was made to solve the above problems, and includes: an upper fixed nozzle provided on the bottom wall of a molten metal container; and an upper fixed nozzle fixed to a lower part of the upper fixed nozzle. a fixing plate having an opening that matches the fixed plate; and a fixing plate slidably attached to the lower part of the fixing plate.
A sliding nozzle device comprising: a sliding plate having an opening that matches the opening of the fixed plate; and a lower sliding nozzle fixed to the lower part of the opening of the sliding plate; A gas injection ring made of a refractory with excellent erosion resistance is provided, in which a groove is formed along the outer peripheral wall, and a plurality of small holes are bored radially from the groove toward the center of the opening. The inert gas is introduced from the outside of the fixing plate into the groove of the gas blowing ring,
It is characterized in that the air is blown into the upper fixed nozzle through the plurality of small holes.

第2図は、この発明の摺動ノズル装置の1態様
を示す断面図である。
FIG. 2 is a sectional view showing one embodiment of the sliding nozzle device of the present invention.

第2図において、第1図は同一番号のものは、
同一物を示し、説明は省略する。第1図に示した
従来の摺動ノズル装置と異なる点は、固定板3′
の構造にある。即ち、この発明の摺動ノズル装置
の固定板3′は、その開口4′に耐溶損性に優れた
耐火物でなるガス吹込みリング8′を嵌合させた
もので構成されている。
In Figure 2, the same numbers as in Figure 1 are
The same thing is shown, and the explanation is omitted. The difference from the conventional sliding nozzle device shown in Fig. 1 is that the fixed plate 3'
It is in the structure of That is, the fixed plate 3' of the sliding nozzle device of the present invention is constructed by fitting a gas injection ring 8' made of a refractory material with excellent erosion resistance into an opening 4' of the fixed plate 3'.

ガス吹込みリング8′の外周壁には、その円周
方向にそつて溝9が形成されていて、溝9には、
溝9から開口4′の中心に向つて放射状に複数個
の小孔10が穿設されている。
A groove 9 is formed along the circumferential direction in the outer circumferential wall of the gas blowing ring 8', and the groove 9 has the following features:
A plurality of small holes 10 are bored radially from the groove 9 toward the center of the opening 4'.

固定板3′の外部から、前記溝9内に導入され
た不活性ガスは、溝9から上記複数個の小孔10
を通つて、上部固定ノズル1内に吹込まれ、上部
固定ノズル1内溶鋼の凝固を防止する。
The inert gas introduced into the groove 9 from the outside of the fixed plate 3' flows through the groove 9 into the plurality of small holes 10.
The steel is blown through the upper fixed nozzle 1 to prevent the molten steel inside the upper fixed nozzle 1 from solidifying.

上記小孔10の径は、0.1〜1.0mmφが好まし
い。
The diameter of the small hole 10 is preferably 0.1 to 1.0 mmφ.

この発明によれば、従来のポーラスな耐火物で
なるガス吹込みリングにかえ、耐溶損性に優れた
ガス吹込みリングを用いたので、固定板の使用寿
命が大巾に延び、しかも、ガス吹込みリングに形
成した複数個の小孔から不活性ガスを供給するの
で、安定して不活性ガスを上部固定ノズル内に吹
込むことができる等種々の有用な効果をもたらさ
れる。
According to this invention, a gas injection ring with excellent erosion resistance is used in place of the conventional gas injection ring made of porous refractories, so the service life of the fixing plate is greatly extended. Since the inert gas is supplied through the plurality of small holes formed in the blow ring, various useful effects such as being able to stably blow the inert gas into the upper fixed nozzle are brought about.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、従来の溶融金属用容器の摺動ノズル
装置の断面図、第2図は、この発明の摺動ノズル
装置の断面図である。図面において、 1……上部固定ノズル、2……溶融金属用容器
の底壁、3,3′……固定板、4,4′……開口、
5……摺動板、6……開口、7……下部摺動ノズ
ル、8,8′……ガス吹込みリング、9……溝、
10……小孔。
FIG. 1 is a sectional view of a conventional sliding nozzle device for a container for molten metal, and FIG. 2 is a sectional view of a sliding nozzle device of the present invention. In the drawings, 1... upper fixed nozzle, 2... bottom wall of the molten metal container, 3, 3'... fixed plate, 4, 4'... opening,
5... Sliding plate, 6... Opening, 7... Lower sliding nozzle, 8, 8'... Gas blowing ring, 9... Groove,
10...Small hole.

Claims (1)

【特許請求の範囲】 1 溶融金属用容器の底壁に設けられた上部固定
ノズルと、 前記上部固定ノズルの下部に固定された、前記
上部固定ノズルと合致する開口を有する固定板
と、 前記固定板の下部に摺動自在に取付けられた、
前記固定板の開口と合致する開口を有する摺動板
と、 前記摺動板の開口の下部に固定された下部摺動
ノズルと から構成される摺動ノズル装置において、 前記固定板を、その開口に、外周壁にそつて溝
が形成され、前記溝から前記開口の中心に向つて
放射状に複数個の小孔が穿設された、耐溶損性に
優れた耐火物でなるガス吹込みリングを嵌合させ
たもので構成し、前記固定板の外部から、前記ガ
ス吹込みリングの溝内に導入した不活性ガスを、
前記複数個の小孔から前記上部固定ノズル内に吹
込むようにしてなることを特徴とする溶融金属用
容器の摺動ノズル装置。
[Scope of Claims] 1. An upper fixed nozzle provided on the bottom wall of the molten metal container; a fixed plate fixed to the lower part of the upper fixed nozzle and having an opening that matches the upper fixed nozzle; and the fixed plate. Slidingly attached to the bottom of the board,
A sliding nozzle device comprising: a sliding plate having an opening that matches the opening of the fixed plate; and a lower sliding nozzle fixed to the lower part of the opening of the sliding plate; A gas injection ring made of a refractory with excellent erosion resistance is provided, in which a groove is formed along the outer peripheral wall, and a plurality of small holes are bored radially from the groove toward the center of the opening. The inert gas is introduced from the outside of the fixing plate into the groove of the gas blowing ring,
A sliding nozzle device for a container for molten metal, characterized in that air is blown into the upper fixed nozzle through the plurality of small holes.
JP1379381A 1981-02-03 1981-02-03 Sliding nozzle device of vessel for molten steel Granted JPS57130763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1379381A JPS57130763A (en) 1981-02-03 1981-02-03 Sliding nozzle device of vessel for molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1379381A JPS57130763A (en) 1981-02-03 1981-02-03 Sliding nozzle device of vessel for molten steel

Publications (2)

Publication Number Publication Date
JPS57130763A JPS57130763A (en) 1982-08-13
JPH0129625B2 true JPH0129625B2 (en) 1989-06-13

Family

ID=11843118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1379381A Granted JPS57130763A (en) 1981-02-03 1981-02-03 Sliding nozzle device of vessel for molten steel

Country Status (1)

Country Link
JP (1) JPS57130763A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60177952A (en) * 1984-02-24 1985-09-11 Nippon Steel Corp Sliding nozzle device having gas blowing function
JPS6133759A (en) * 1984-07-25 1986-02-17 Toshiba Ceramics Co Ltd Molten metal discharging device
JPS6133757A (en) * 1984-07-25 1986-02-17 Toshiba Ceramics Co Ltd Molten metal discharging device
JPS6133758A (en) * 1984-07-25 1986-02-17 Toshiba Ceramics Co Ltd Molten metal discharging device
JP7165116B2 (en) * 2019-11-25 2022-11-02 東京窯業株式会社 Sliding plate or fixed plate of molten metal discharging device

Also Published As

Publication number Publication date
JPS57130763A (en) 1982-08-13

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