JPH036862B2 - - Google Patents

Info

Publication number
JPH036862B2
JPH036862B2 JP12432284A JP12432284A JPH036862B2 JP H036862 B2 JPH036862 B2 JP H036862B2 JP 12432284 A JP12432284 A JP 12432284A JP 12432284 A JP12432284 A JP 12432284A JP H036862 B2 JPH036862 B2 JP H036862B2
Authority
JP
Japan
Prior art keywords
metal frame
sliding
plate
opening
sealed
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
JP12432284A
Other languages
Japanese (ja)
Other versions
JPS613653A (en
Inventor
Kazunori Ogasawara
Izumi Ooishi
Masao Nanbu
Kazumichi Pponda
Toshimitsu Taira
Kenichi Harada
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 Steel Corp
Original Assignee
Kawasaki Steel 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP12432284A priority Critical patent/JPS613653A/en
Publication of JPS613653A publication Critical patent/JPS613653A/en
Publication of JPH036862B2 publication Critical patent/JPH036862B2/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
    • B22D41/24Closures 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 characterised by a rectilinearly movable plate

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】 〔産業上の利用分野〕 本発明は各種溶鋼受載容器に取付け、溶鋼流の
流量調整を行うスライデイングノズル装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sliding nozzle device that is attached to various molten steel receiving containers and adjusts the flow rate of molten steel flow.

〔従来の技術〕[Conventional technology]

近年、スライデイングノズル装置は、上記溶鋼
受載容器等からの溶鋼流出流の流量調整を正確に
行うことができるために多く用いられている。
In recent years, sliding nozzle devices have been widely used because they can accurately adjust the flow rate of the molten steel flowing out from the molten steel receiving container and the like.

しかし反面、ストツパーノズルに比べてエアの
差込を生じやすいという欠点を有する。例えば連
続鋳造において、取鍋、タンデイツシユから連続
鋳造用鋳型に至る溶鋼流路において、浸漬管の部
分はエアの差込を防止できるが、取鍋およびタン
デイツシユにそれぞれ取付けたスライデイングノ
ズル装置においては、エアが溶鋼流中に差込み、
鋼品質の低下をもたらしている。かかる差込は、
摺動プレートと固定プレート等間の摺動面に沿つ
て生じる場合が多く、そのため、従来差込防止方
法の一つとしてアルゴン等の不活性ガスを摺動プ
レートあるいは固定プレート等の周縁に吹付け、
エアの差込みを防止する方法がある。しかしこの
方法はエアの差込を完全に防止することはできな
かつた。
However, on the other hand, it has the disadvantage that air is more likely to be inserted than a stopper nozzle. For example, in continuous casting, the immersion pipe can prevent air from entering the molten steel flow path from the ladle and tundish to the continuous casting mold, but in the case of sliding nozzle devices attached to the ladle and tundish respectively, Air is inserted into the molten steel flow,
This has led to a decline in steel quality. Such insertion is
This often occurs along the sliding surface between the sliding plate and the fixed plate, etc. Therefore, one of the conventional methods to prevent insertion is to spray inert gas such as argon onto the periphery of the sliding plate or the fixed plate, etc. ,
There is a way to prevent air from entering. However, this method could not completely prevent air from entering.

〔発明の目的〕[Purpose of the invention]

本発明はこような従来技術が有する欠点を解決
しようとするものであり、エアの溶鋼流への差込
を完全に防止し、それによつて鋼品質の向上を図
ることができるスライデイングノズル装置を提供
することを目的とする。
The present invention aims to solve the drawbacks of the prior art, and provides a sliding nozzle device that can completely prevent air from entering the molten steel flow, thereby improving steel quality. The purpose is to provide

〔発明の構成〕[Structure of the invention]

上記目的を達成するため、本発明ではプレート
摺動面を密閉室内に形成し、同密閉室に減圧排気
用口金具を設けることによつて、密閉室内を減圧
空間とし、エアの溶鋼流への差込を防止してい
る。
In order to achieve the above object, in the present invention, the plate sliding surface is formed in a sealed chamber, and a decompression exhaust fitting is provided in the sealed chamber, thereby making the sealed chamber a depressurized space and directing air to the molten steel flow. Prevents insertion.

〔実施例〕〔Example〕

以下、添付図に示す実施例に基いて具体的に本
発明を説明する。
Hereinafter, the present invention will be specifically described based on embodiments shown in the accompanying drawings.

<第一実施例>(第1図から第3図) 本実施例はプレート摺動面を内部に形成する密
閉室を、固定金枠に開閉金枠を密封状態に連結す
ることによつて形成した構成に特徴を有する。
<First Example> (Figures 1 to 3) In this example, a sealed chamber in which a plate sliding surface is formed is formed by connecting an opening/closing metal frame to a fixed metal frame in a sealed manner. It is characterized by its configuration.

図中、1は取鍋等の鉄皮であり、同鉄皮1はそ
の一部に開口を有しており、同開口内に上部ノズ
ル2が嵌挿状態に取付けられており、また鉄皮1
の上面には上部ノズル2の上部を同心円的に囲繞
する羽口レンガ3が取付けられる。
In the figure, reference numeral 1 indicates a steel shell such as a ladle. The steel shell 1 has an opening in a part thereof, and an upper nozzle 2 is fitted into the opening. 1
A tuyere brick 3 concentrically surrounding the upper part of the upper nozzle 2 is attached to the upper surface of the upper nozzle 2.

また4はボルト5によつて鉄皮1に固定される
固定金枠であり、同固定金枠4は鉄皮1に設けた
開口と整合する開口を有しており、同開口内に上
部ノズル2の下部が嵌挿支持される。
Further, 4 is a fixed metal frame fixed to the steel shell 1 with bolts 5, and the fixed metal frame 4 has an opening that matches the opening provided in the steel shell 1, and the upper nozzle is inserted into the same opening. The lower part of 2 is inserted and supported.

上部ノズル2はその下端に注出孔を有する固定
プレート6を固着しており、また固定プレート6
の下方には所要平行間隔にて下部ノズル7が配設
されており、同下部ノズル7の注出孔は固定プレ
ート6の注出孔と整合している。
The upper nozzle 2 has a fixed plate 6 fixed to its lower end and has a spout hole, and the fixed plate 6
Lower nozzles 7 are disposed below at a required parallel interval, and the spout holes of the lower nozzles 7 are aligned with the spout holes of the fixed plate 6.

さらに下部ノズル7はその下端に連結金具8に
て浸漬ノズル9を取付けている。かかる下部ノズ
ル7及び浸漬ノズル9は箱状をなす開閉金枠10
の開口部にて支持されており、一方開閉金枠10
は固定金枠4に旋回自在に連結される。
Further, a submerged nozzle 9 is attached to the lower end of the lower nozzle 7 with a connecting fitting 8. The lower nozzle 7 and the immersion nozzle 9 are connected to a box-shaped opening/closing metal frame 10.
is supported at the opening of the metal frame 10.
is rotatably connected to the fixed metal frame 4.

また11は固定プレート6と下部ノズル7間に
介設され、同様に注出孔を有する摺動プレートで
あり、同摺動プレート11は固定状態にある固定
プレート6の下面および下部ノズル7の上面との
間にそれぞれプレート摺動面A,Bを形成してい
る。
Reference numeral 11 denotes a sliding plate which is interposed between the fixed plate 6 and the lower nozzle 7 and similarly has a spouting hole, and the sliding plate 11 is connected to the lower surface of the fixed plate 6 and the upper surface of the lower nozzle 7 in the fixed state. Plate sliding surfaces A and B are respectively formed between them.

摺動プレート11は摺動金枠12内に囲繞され
ており、同摺動金枠12はその一端を、開閉金枠
10の対応端に取付けられている往復動シリンダ
13の伸縮ロツド14と連結している。
The sliding plate 11 is surrounded by a sliding metal frame 12, and one end of the sliding metal frame 12 is connected to a telescopic rod 14 of a reciprocating cylinder 13 attached to a corresponding end of the opening/closing metal frame 10. are doing.

上記基本構成において、本実施例の構成は開閉
金枠10を固定金枠4に密封状態に連結したこと
に特徴を有するものである。
In the basic configuration described above, the configuration of this embodiment is characterized in that the opening/closing metal frame 10 is connected to the fixed metal frame 4 in a sealed manner.

かかる連結は実質的に固定金枠4と開閉金枠1
0の連結面にシール機構20を介設することによ
つて行なわれる。
This connection essentially connects the fixed metal frame 4 and the opening/closing metal frame 1.
This is done by interposing a sealing mechanism 20 on the connecting surface of the 0.

シール機構20は各種形態が考えられるが、本
実施例では、開閉金枠10の上面に矩形環状凹部
21を形成し、同環状凹部21内に同様に矩形環
状形状を有するシール金物22を嵌合し、同シー
ル金物22の上面及び側面に環状Oリング押え2
3を用いてOリング24,25を取付け、さらに
開閉金枠10の周縁に複数の金物押圧用ボルト2
6を貫通させ、この金物押圧用ボルト26は、そ
の一端をシール金物22に連結するとともに、そ
の他端を開閉金枠10の下面に保持金具27によ
つて回動不可状態に取付けたナツト28に螺合し
ている。
Various forms of the sealing mechanism 20 are possible, but in this embodiment, a rectangular annular recess 21 is formed on the upper surface of the opening/closing metal frame 10, and a seal metal fitting 22 having a similar rectangular annular shape is fitted into the annular recess 21. The annular O-ring retainer 2 is attached to the top and side surfaces of the metal seal 22.
3 to attach the O-rings 24 and 25, and then attach a plurality of hardware pressing bolts 2 to the periphery of the opening/closing metal frame 10.
This hardware pressing bolt 26 has one end connected to the sealing hardware 22, and the other end connected to a nut 28 fixed to the lower surface of the opening/closing metal frame 10 by a holding fitting 27 in a non-rotatable state. They are screwed together.

かかる構成によつて、金物押圧用ボルト26を
回転すると、この回転によつてボルト26が前進
し、Oリング24を固定金枠4に押付ける。その
結果、開閉金枠10と固定金枠4間に密閉室Cが
形成され、この密閉室Cには口金具29を介して
真空吸引装置(図示せず)を連結し、同密封室C
を減圧状態にする。
With this configuration, when the hardware pressing bolt 26 is rotated, the bolt 26 advances due to this rotation and presses the O-ring 24 against the fixed metal frame 4. As a result, a sealed chamber C is formed between the opening/closing metal frame 10 and the fixed metal frame 4, and a vacuum suction device (not shown) is connected to this sealed chamber C via the cap fitting 29.
to a reduced pressure state.

上記構成を有するスライデイングノズル装置の
作動について以下説明する。
The operation of the sliding nozzle device having the above configuration will be explained below.

いま、往復動シリンダ13を駆動して摺動プレ
ート11を摺動して全注出孔を整合して溶湯を取
鍋等から羽口レンガ3、上部ノズル2、固定プレ
ート6、摺動プレート11、下部ノズル7及び浸
漬ノズル9をを介してタンデイツシユ(図示せ
ず)等に流出する。この場合、溶湯流の流れによ
つて注出孔周縁及びプレート摺動面A,Bに負圧
を発生する。しかるに本実施例ではかかるプレー
ト摺動面A,Bは密閉室C内に所在し、かつ密閉
室C内を減圧状態にし、さらにかつ減圧程度を溶
鋼流により発生する負圧より大としているので、
溶鋼流へのエアの差込を完全に防止することがで
きる。
Now, the reciprocating cylinder 13 is driven to slide the sliding plate 11 to align all the pouring holes and pour the molten metal from the ladle, etc. to the tuyere brick 3, the upper nozzle 2, the fixed plate 6, and the sliding plate 11. , flows out through the lower nozzle 7 and the submerged nozzle 9 to a tundish (not shown) or the like. In this case, the flow of the molten metal generates negative pressure around the spout hole and on the plate sliding surfaces A and B. However, in this embodiment, the plate sliding surfaces A and B are located inside the closed chamber C, and the inside of the closed chamber C is brought into a reduced pressure state, and the degree of reduced pressure is set to be greater than the negative pressure generated by the flow of molten steel.
Insertion of air into the molten steel flow can be completely prevented.

<第2実施例>(第4図から第6図) 本実施例の構成はプレート摺動面を内部に形成
する密閉室を、構成プレート、固定金枠及び開閉
金枠を一体的に囲繞し、かつ容器に密封状態に連
結される密封筐体にて形成したことを特徴とす
る。
<Second Embodiment> (Figures 4 to 6) The configuration of this embodiment is such that a sealed chamber in which a plate sliding surface is formed is integrally surrounded by a constituent plate, a fixed metal frame, and an opening/closing metal frame. , and is formed of a sealed casing that is hermetically connected to the container.

本実施例におけるスライデイングノズル装置も
第1実施例におけるスライデイングノズル装置と
同様に三枚プレート構造を有し、その基本構成は
同じであり、ただ開閉金枠、下部ノズル等をカセ
ツトとして一体的に取鍋鉄皮から平行に取外すよ
うに構成としている点で相違しているのみであ
り、これにより基本構成における同様な構成要素
は(100)を足した符号にて図面上指示する。
The sliding nozzle device in this embodiment also has a three-plate structure similar to the sliding nozzle device in the first embodiment, and its basic configuration is the same, except that the opening/closing metal frame, the lower nozzle, etc. are integrated as a cassette. The only difference is that the structure is such that it can be removed in parallel from the ladle shell, and therefore similar components in the basic structure are indicated by the reference numeral with (100) added.

本実施例において密閉筐体149は、スライデ
イングノズル装置全体を両端開口の矩形筒体15
0にて囲繞するとともに、同矩形筒体150の上
端を密封状態に鉄皮101に溶接し、さらに下部
ノズル107等を、伸延させるため中央開口15
1を設けた蓋体152をガスケツト等の矩形環状
第1シール材153及び連結ボルト154にて密
封連結し、さらに中央開口151にベローズ等の
第2シール部材155にて密封した構成を有して
おり、これによつて密閉筐体149内に密閉室1
00Cが形成される。この密閉室100Cもその
内部を減圧状態にする。
In this embodiment, the sealed casing 149 is a rectangular cylinder 15 with openings at both ends.
0, the upper end of the rectangular cylinder 150 is hermetically welded to the steel shell 101, and a central opening 15 is formed to extend the lower nozzle 107, etc.
1 is sealed with a rectangular annular first sealing member 153 such as a gasket and a connecting bolt 154, and the central opening 151 is further sealed with a second sealing member 155 such as a bellows. As a result, a sealed chamber 1 is created within the sealed housing 149.
00C is formed. This sealed chamber 100C is also brought into a reduced pressure state.

かかる構成とすることによつて密閉筐体149
内に形成される密閉室100Cは第1実施例の密
閉室Cと同様にスライデイングノズル装置内を流
れる溶湯流へのエアの差込を確実に防止すること
ができる。
With this configuration, the sealed casing 149
Similar to the sealed chamber C of the first embodiment, the sealed chamber 100C formed therein can reliably prevent air from entering the molten metal flow flowing inside the sliding nozzle device.

〔発明の効果〕〔Effect of the invention〕

以上述べてきた如く、本発明に係るスライデイ
ングノズル装置はプレート摺動面を減圧状態の密
閉空間に配設させることによつて空気の溶湯流へ
の差込を完全に防止でき、鋼質の向上を図ること
ができる。
As described above, the sliding nozzle device according to the present invention can completely prevent air from entering the molten metal flow by arranging the plate sliding surface in a closed space under reduced pressure. You can improve your performance.

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

第1図は本発明の第1実施例に係るスライデイ
ングノズル装置の正面断面図、第2図は同底面
図、第3図は第1図−線による縦断側面図、
第4図は第2実施例に係るスライデイングノズル
装置の正面断面図、第5図は同底面図、第6図は
第4図−線による縦断面図である。 図中、1……鉄皮、2……上部ノズル、3……
羽口レンガ、4……固定金枠、5……ボルト、6
……固定プレート、7……下部ノズル、8……連
結金具、9……浸漬ノズル、10……開閉金枠、
11……摺動プレート、12……摺動金枠、13
……往復動シリンダ、14……伸縮ロツド、20
……シール機構、21……矩形環状凹部、22…
…シール金物、23……環状Oリング押え、24
……Oリング、25……Oリング、26……金物
押圧用ボルト、27……保持金具、28……ナツ
ト、29……口金具、149……密閉筐体、15
0……矩形筒体、151……中央開口、152…
…蓋体、153……矩形環状第1シール材、15
4……連結ボルト、155……第2シール材、A
……プレート摺動面、B……プレート摺動面、C
……密閉室。
FIG. 1 is a front sectional view of a sliding nozzle device according to a first embodiment of the present invention, FIG. 2 is a bottom view thereof, and FIG. 3 is a vertical sectional side view taken along the line of FIG.
FIG. 4 is a front sectional view of the sliding nozzle device according to the second embodiment, FIG. 5 is a bottom view thereof, and FIG. 6 is a longitudinal sectional view taken along the line of FIG. 4. In the figure, 1... iron skin, 2... upper nozzle, 3...
Tuyere brick, 4... Fixed metal frame, 5... Bolt, 6
... Fixed plate, 7 ... Lower nozzle, 8 ... Connection fitting, 9 ... Immersion nozzle, 10 ... Opening/closing metal frame,
11...Sliding plate, 12...Sliding metal frame, 13
... Reciprocating cylinder, 14 ... Telescopic rod, 20
... Seal mechanism, 21 ... Rectangular annular recess, 22 ...
... Seal hardware, 23 ... Annular O-ring retainer, 24
... O-ring, 25 ... O-ring, 26 ... Bolt for pressing hardware, 27 ... Holding fitting, 28 ... Nut, 29 ... Mouth fitting, 149 ... Sealed casing, 15
0... Rectangular cylindrical body, 151... Central opening, 152...
... Lid body, 153 ... Rectangular annular first sealing material, 15
4... Connection bolt, 155... Second sealing material, A
...Plate sliding surface, B...Plate sliding surface, C
...A closed room.

Claims (1)

【特許請求の範囲】 1 少くともプレート摺動面を密閉室内に形成
し、同密閉室に減圧排気用口金具を設けたことを
特徴とするシール機構を有するスライデイングノ
ズル装置。 2 同密閉室は、上記プレート摺動面を囲繞する
固定金枠と開閉金枠とを密封状態に連結して形成
したことを特徴とする特許請求の範囲第1項記載
のシール機構を有するスライデイングノズル装
置。 3 同密閉室は、構成プレート、固定金枠、及び
開閉金枠を一体的に囲繞し、かつ容器に密封状態
に連結する密閉筐体によつて形成したことを特徴
とする特許請求の範囲第1項記載のシール機構を
有するスライデイングノズル装置。
[Scope of Claims] 1. A sliding nozzle device having a sealing mechanism, characterized in that at least a plate sliding surface is formed in a sealed chamber, and a mouth fitting for decompression exhaust is provided in the sealed chamber. 2. The sealed chamber is formed by connecting a fixed metal frame surrounding the sliding surface of the plate and an opening/closing metal frame in a sealed state. Riding nozzle device. 3. The sealed chamber is formed by a sealed casing that integrally surrounds the constituent plate, the fixed metal frame, and the opening/closing metal frame, and is connected to the container in a sealed state. A sliding nozzle device having the sealing mechanism according to item 1.
JP12432284A 1984-06-15 1984-06-15 Sliding nozzle device having sealing mechanism Granted JPS613653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12432284A JPS613653A (en) 1984-06-15 1984-06-15 Sliding nozzle device having sealing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12432284A JPS613653A (en) 1984-06-15 1984-06-15 Sliding nozzle device having sealing mechanism

Publications (2)

Publication Number Publication Date
JPS613653A JPS613653A (en) 1986-01-09
JPH036862B2 true JPH036862B2 (en) 1991-01-31

Family

ID=14882463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12432284A Granted JPS613653A (en) 1984-06-15 1984-06-15 Sliding nozzle device having sealing mechanism

Country Status (1)

Country Link
JP (1) JPS613653A (en)

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DE4007993A1 (en) * 1990-03-13 1991-09-19 Zimmermann & Jansen Gmbh SLIDING CLOSURE FOR A METALLURGICAL CASTING CASE, ESPECIALLY A CASTING PAN
JP2558125Y2 (en) * 1990-08-10 1997-12-17 住友金属工業株式会社 Closed sliding nozzle
JP2551941Y2 (en) * 1991-01-11 1997-10-27 住友金属工業株式会社 Closed sliding nozzle
JPH05115964A (en) * 1991-10-24 1993-05-14 Shinagawa Refract Co Ltd Air shutting method in slide valve
FR2732916B1 (en) * 1995-04-14 1997-05-23 Vesuvius France Sa GAS-TIGHT DRAWER FOR METALLURGICAL CONTAINER
DE10033902C1 (en) * 2000-07-12 2001-11-22 Vaw Ver Aluminium Werke Ag Casting/low pressure casting comprises pushing together two opening sections of a passage channel directly after casting so that an opening section lying above remains connected to the casting opening
DE102004057381A1 (en) * 2004-11-26 2006-06-01 Heraeus Electro-Nite International N.V. Method for controlling the flow and bottom outlet for a metallurgical vessel
DE102009020990A1 (en) * 2009-05-12 2010-11-18 Heraeus Electro-Nite International N.V. Floor spout for use in a container for molten metal
DE102010050936A1 (en) 2010-11-11 2012-05-16 Heraeus Electro-Nite International N.V. Floor spout nozzle for placement in the bottom of a metallurgical vessel
DE202011111055U1 (en) 2011-06-27 2018-12-12 Knöllinger FLO-TEC GmbH Slide closure for a metallurgical casting vessel, in particular ladle
DE102020111695B3 (en) * 2020-04-29 2021-07-15 Knöllinger FLO-TEC GmbH Slide gate valve with internal sealing body and method for its assembly

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JPS613653A (en) 1986-01-09

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