JPS6340668A - Vessel for molten metal having molten metal outflow port - Google Patents
Vessel for molten metal having molten metal outflow portInfo
- Publication number
- JPS6340668A JPS6340668A JP18458086A JP18458086A JPS6340668A JP S6340668 A JPS6340668 A JP S6340668A JP 18458086 A JP18458086 A JP 18458086A JP 18458086 A JP18458086 A JP 18458086A JP S6340668 A JPS6340668 A JP S6340668A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- molten steel
- tundish
- molten
- outlet
- 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 abstract description 36
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 36
- 230000002265 prevention Effects 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 36
- 239000010959 steel Substances 0.000 abstract description 36
- 239000002893 slag Substances 0.000 abstract description 10
- 238000005266 casting Methods 0.000 abstract description 4
- 239000011819 refractory material Substances 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 239000011449 brick Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 101100289061 Drosophila melanogaster lili gene Proteins 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
この発明は、溶ン易肩面上に浮遊するスラグを巻込まず
に溶湯を流出させる溶湯流出口を備えた溶、易容器に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a melting container equipped with a melt outlet that allows the melt to flow out without involving slag floating on the meltable shoulder surface.
[従来の技術]
従来のクンデイツシュには、第4図に示すように、その
底部1の適所に受はレンガ2が嵌込まれて、おり、この
受はレンガ2にはポーラスノズル3が嵌込まれて溶鋼流
出口12が形成されている。[Prior Art] As shown in FIG. 4, a conventional kundish has a brick 2 fitted into the bottom 1 at a proper position, and a porous nozzle 3 is fitted into the brick 2. A molten steel outlet 12 is formed.
このノズル3に整合する位置には、スライディングノズ
ル7が配設されている。このスライディングノズル7は
タンデイツシュ底部1の鉄皮4に固定された固定盤8と
、この固定盤8に対して摺動するように配設されたスラ
イド盤9とを有する。A sliding nozzle 7 is arranged at a position aligned with this nozzle 3. This sliding nozzle 7 has a fixed platen 8 fixed to the iron skin 4 of the tundish bottom 1, and a sliding platen 9 arranged to slide on the fixed platen 8.
そして、スライド盤9を活動させて固定盤8の孔とスラ
イド盤9の孔との相対(li21を変化させることによ
り、溶鋼通流断面積をIIL、て溶鋼通流量を調節する
。スライド盤9には、円筒状の浸漬ノズル10が取付け
られており、このI iffノズル1oの吐出口19a
、19bを鋳型11内の溶鋼中に浸漬させて溶鋼注入流
と空気との接触を回避しつつ溶鋼を鋳型11内に注入す
る。Then, by activating the slide plate 9 and changing the relative relationship (li21) between the hole of the fixed plate 8 and the hole of the slide plate 9, the molten steel flow cross-sectional area is IIL, and the flow rate of the molten steel is adjusted.Slide plate 9 A cylindrical immersion nozzle 10 is attached to the I iff nozzle 1o.
, 19b are immersed in the molten steel in the mold 11 to inject the molten steel into the mold 11 while avoiding contact between the molten steel injection flow and air.
[発明が解決しようとする問題点]
しかしながら、連続鋳造末期に溶鋼瀉血が低下してl1
lili高さが約400+n+n以下になると、溶鋼流
出口12の直上域の溶!4流に渦17が発生する。[Problems to be solved by the invention] However, at the end of continuous casting, the molten steel blood loss decreases and l1
When the height of lili becomes less than about 400+n+n, the molten steel in the area directly above the molten steel outlet 12! A vortex 17 is generated in the fourth flow.
そうすると、タンデイツシュ内の溶鋼6はスラブ16で
覆われているので、このスラグ16が渦17に巻込まれ
、溶鋼6と共に鋳型11内に流出してしまう。このため
、このスラグ16が凝固殻13に捕捉されて鋳片の介在
物欠陥となり、鋳片の品質が低下するという問題点があ
る。また、高品質を要求される鋳片を製造する場合には
、タンデイツシュ内の溶鋼6の場面高さが約40On+
+nになった時点で鋳造を停止し、渦17の発生及び鋳
型11内へのスラグ16の流出を防止しているが、この
場合には、溶16がタンデイツシュ内に残存し、その歩
留りが低いという問題がある。Then, since the molten steel 6 in the tundish is covered with the slab 16, the slag 16 is drawn into the vortex 17 and flows into the mold 11 together with the molten steel 6. Therefore, this slag 16 is captured by the solidified shell 13 and becomes an inclusion defect in the slab, resulting in a problem that the quality of the slab deteriorates. In addition, when manufacturing slabs that require high quality, the scene height of the molten steel 6 in the tundish is approximately 40 On+
When the temperature reaches +n, casting is stopped to prevent the generation of vortices 17 and the outflow of slag 16 into the mold 11, but in this case, the molten 16 remains in the tundish, resulting in a low yield. There is a problem.
この発明は斯かる事情に鑑みてなされたものであって、
渦の発生を防止してスラグを巻込むことなく他の部材に
溶湯を供給し、歩留の低下を抑制することができると共
に、高品質の製品を(qることができる溶湯流出口を備
えた溶湯容器を提供することを目的とする。This invention was made in view of such circumstances, and
Equipped with a molten metal outlet that prevents the generation of vortices and supplies molten metal to other parts without involving slag, suppresses a decrease in yield, and allows high-quality products to be produced. The purpose of this invention is to provide a molten metal container.
[問題点を解決するための手段]
この発明に係る溶湯流出口を備えた溶湯容器は、底部に
溶湯流出口を備え、貯留した溶湯をこの溶)易流出口を
介して他の部材に供給する溶1流出口を備えた溶湯容器
において、前記溶湯流出口の直上域に設置された渦流阻
止部材を有し、この渦流阻止部材は垂直方向に延びる複
数枚の羽根が溶i易流出口を中心として放射状に配設さ
れていることを特撮とする。[Means for Solving the Problems] A molten metal container equipped with a molten metal outlet according to the present invention is provided with a molten metal outlet at the bottom, and the stored molten metal is supplied to other members through the molten metal outlet. The molten metal container has a molten metal outlet which is equipped with a molten metal outlet, and includes a vortex flow prevention member installed in an area directly above the molten metal outlet, and this vortex flow prevention member has a plurality of vertically extending blades that connect the molten metal flow outlet. The special effects are that they are arranged radially around the center.
[作用1
この発明に係る溶湯流出口を備えた溶?易容器において
は、容器内の場面高さが低下すると溶湯流出口の直上域
に渦が発生しようとするが、この領域には垂直方向に延
びる複数枚の羽根が配設されているので、この羽根によ
り旋回流が遮られて渦の発生が阻止される。[Function 1] A molten metal equipped with a molten metal outlet according to the present invention? In a simple container, when the scene height inside the container decreases, a vortex tends to occur in the area directly above the molten metal outlet, but since multiple blades extending vertically are arranged in this area, this can be prevented. The blades block the swirling flow and prevent the generation of vortices.
[実施例]
以下、添付の図面を参照してこの発明の実施例について
具体的に説明する。[Embodiments] Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings.
第1図はこの発明の実施例に係る溶湯流出口を備えた溶
湯容器がタンデイシュに適用された連続鋳造装置を示す
側面図である。タンデイシュ21は耐火物22で内張す
され、外側が鉄皮24で覆われており、タンデイツシュ
21の底部の適所には受はレンガ23が嵌込まれている
。この受はレンガ23にはポーラスノズル26が嵌込ま
れ、溶鋼流出口25が形成されている。そして、溶鋼流
出口25には渦流阻止部材50の下部が嵌込まれ、溶!
4流出口25から上方に渦流阻止部材50が直立してい
る。また、ポーラスノズル26の下部にはスライディン
グノズル30が取付けられており、スライディングノズ
ル30の固定盤31は鉄皮24に固定され、この固定盤
31の下部にはスライド盤32が摺接されている。スラ
イド盤32の下部には浸漬ノズル35が取付けられてお
り、定常状態においては浸漬ノズル35の下部は鋳型3
8内の溶鋼中に浸漬されている。この浸漬されたノズル
35の下部には1対の吐出口37a。FIG. 1 is a side view showing a continuous casting apparatus in which a molten metal container having a molten metal outlet according to an embodiment of the present invention is applied to a tundish. The tundish 21 is lined with a refractory material 22, and the outside is covered with an iron shell 24, and a brick 23 is fitted in a suitable position at the bottom of the tundish 21. In this receiver, a porous nozzle 26 is fitted into a brick 23, and a molten steel outlet 25 is formed. Then, the lower part of the vortex flow prevention member 50 is fitted into the molten steel outlet 25, and the molten steel is melted!
A vortex flow prevention member 50 stands upright above the fourth outlet 25. Further, a sliding nozzle 30 is attached to the lower part of the porous nozzle 26, a fixed plate 31 of the sliding nozzle 30 is fixed to the iron skin 24, and a sliding plate 32 is slidably connected to the lower part of the fixed plate 31. . An immersion nozzle 35 is attached to the lower part of the slide plate 32, and in a steady state, the lower part of the immersion nozzle 35 is attached to the mold 3.
8 is immersed in molten steel. A pair of discharge ports 37a are provided at the bottom of the immersed nozzle 35.
37bが形成され、タンデイツシュ21から流出した溶
!I42が鋳型38内に吐出されるようになっている。37b was formed and the melt that flowed out from the tandate 21! I42 is adapted to be discharged into the mold 38.
また、鋳型38内のInはパウダで1われており、この
パウダにより鋳型内の18鋼の酸化を防止すると共に、
Vtuと凝固140との間の潤滑性を向上させるように
なっている。In addition, the In in the mold 38 is filled with powder, and this powder prevents the 18 steel in the mold from oxidizing.
It is designed to improve lubricity between Vtu and solidification 140.
第2図は渦流阻止部材50の斜視図、第3図は渦流阻止
部材50の水平断面図である。渦流阻止部材50は、垂
直方向に延びる4枚の板状の羽根52、嵌込み部54及
び支持棒56により構成され、例えば、CaO系の耐火
物でつくられている。FIG. 2 is a perspective view of the eddy current prevention member 50, and FIG. 3 is a horizontal sectional view of the eddy current prevention member 50. The eddy current blocking member 50 is composed of four plate-shaped blades 52 extending in the vertical direction, a fitting portion 54, and a support rod 56, and is made of, for example, a CaO-based refractory.
4枚の羽根52は隣接する羽根52が相互に直交するよ
うに配置され、4枚を組合わせた水平断面形状が十字形
をなしている。この羽根52の1枚の大きさは、例えば
、幅が約250mm、高さが約400 m1ll、厚さ
が約2Qmmである。また、嵌込み部54は羽根52の
下端に沿って形成されており、この嵌込み部54を溶鋼
流出口25(径が約80mm)内に嵌込んで渦流阻止部
材50が直立するようになっている。また、支持棒56
は略垂直方向に延びており、その下り1Mは4枚の羽根
52の中心の上端に接続されている。そして、支持棒5
6の上端部はタンデイツシュの蓋(図示せず)に固定さ
れている。The four blades 52 are arranged so that adjacent blades 52 are orthogonal to each other, and the horizontal cross-sectional shape of the four blades combined is a cross. The size of one blade 52 is, for example, about 250 mm in width, about 400 ml in height, and about 2 Q mm in thickness. Further, a fitting part 54 is formed along the lower end of the blade 52, and the fitting part 54 is fitted into the molten steel outlet 25 (diameter is about 80 mm) so that the vortex flow prevention member 50 stands upright. ing. In addition, the support rod 56
extends in a substantially vertical direction, and its downward direction 1M is connected to the upper end of the center of the four blades 52. And support rod 5
The upper end of 6 is fixed to the lid (not shown) of the tundish.
このように構成された溶)易容器においては、図示しな
い取鋼からタンデイツシュ21に溶鋼42を注入し、こ
の溶!142をタンデイツシュ21底部の溶鋼流出口2
5からスライディングノズル30、e Fa / 7”
ル35及び吐出口37a、37bを介してvI型38
内に注入する。取1!からタンデイツシュ21内への溶
!’M42の注入が進行し、取m内の溶鋼の残存mが少
なくなると、取鍋底部のノズルを閉じ、取鍋からタンデ
イツシュ21内への溶鋼の注入を停止する。そうすると
、タンデイツシュ21内の溶uA42は鋳型38内へ流
出し続けているので、タンデイツシュ21内の濡面が次
第に低下する。そして、タンデイツシュ21内の瀉血高
ざが杓40Qmmまで低下すると、溶鋼流出口25の直
上域の溶鋼流に渦が発生しようとするが、流出口25の
直上域に設けられた渦流阻止部材50の羽根52により
溶1442が垂直方向に導かれているので、渦を発生す
る旋回流が遮られる。In the meltable container configured in this way, molten steel 42 is injected into the tundish 21 from a not-shown steel tray, and the molten steel 42 is poured into the tundish 21. 142 to the molten steel outlet 2 at the bottom of the tundish 21
5 to sliding nozzle 30, e Fa/7”
The vI type 38
Inject inside. Take 1! Melting from the inside of Tanditshu 21! As the injection of M42 progresses and the remaining molten steel m in the ladle m decreases, the nozzle at the bottom of the ladle is closed and the injection of molten steel from the ladle into the tundish 21 is stopped. Then, since the molten uA 42 in the tundish 21 continues to flow into the mold 38, the wet surface inside the tundish 21 gradually decreases. Then, when the bloodletting height in the tundish 21 decreases to 40 Qmm, a vortex is generated in the molten steel flow in the area directly above the molten steel outlet 25, but the vortex flow prevention member 50 provided in the area directly above the outlet 25 Since the melt 1442 is guided in the vertical direction by the vanes 52, the swirling flow that generates the vortex is blocked.
即ち、?17鋼42は羽根52に沿って略垂直方向の流
れとなり、渦を生じることなく1Uflll流出口25
を介してタンデイツシュ21から流出する。このため、
タンデイツシュ21内のm lI?i面を噴うスラグ4
4が溶鋼流に巻込まれることなく溶鋼42を鋳型38内
に注入することができる。In other words,? The 17 steel 42 flows in a substantially vertical direction along the blades 52, and the 1Uflll outlet 25 flows without creating a vortex.
The water flows out from the tundish 21 through. For this reason,
m lI in Tanditshu 21? Slag spouting on i-side 4
The molten steel 42 can be injected into the mold 38 without being involved in the molten steel flow.
なお、この実胎例では、この発明をクンデイツシュに適
用した例を示したが、これに限らず、例えば取鋼等の他
の溶湯容器に適用することもできる。In addition, although this embodiment shows an example in which the present invention is applied to a kundish, the present invention is not limited to this, and can also be applied to other molten metal containers such as steel plates.
また、この実施例では、渦流閉止部材の羽根を4枚の板
としたが、これに限らず、羽根の枚数及び形状を変える
こともできる。Further, in this embodiment, the blades of the eddy current blocking member are made of four plates, but the number and shape of the blades can be changed without being limited thereto.
[発明の効果]
この発明によれば、垂直方向に延びる羽根を有する渦流
阻止部材を溶湯流出口の直上域に設置し。[Effects of the Invention] According to the present invention, the vortex flow prevention member having vertically extending blades is installed in the area directly above the molten metal outlet.
この羽根により渦流を遮るようにしているので、容器内
の4面高さが低下しても渦が発生しなくなる。このため
、溶湯流出口から流出する溶jq流に巻込まれるスラグ
jを極めて少なくすることができ、歩留の低下を抑制す
ることができると共に、介在物が少ない高品質の製品を
冑ることができる。Since these blades block the vortex flow, no vortex will be generated even if the height of the four surfaces inside the container is lowered. Therefore, it is possible to extremely reduce the amount of slag that gets caught up in the flow of molten metal flowing out from the molten metal outlet, suppressing a decrease in yield, and producing high-quality products with few inclusions. can.
第1図はこの発明の実施例に係る溶;9流出口を順えた
溶;易容器がタンデイツシュに適用された連続鋳造装置
を示す側面図、第2図は渦流阻止部材を示す斜視図、第
3図は渦流阻止部材の水平断面図、第4図は鋳造末期に
おける連vc、鋳造装置を示す側面断面図である。
21:タンデイツシュ、25:(8漠流出口、30;ス
ライディングノズル、35:浸漬ノズル、38:鋳型、
42;溶鋼、44;スラグ、50;渦流阻止部材、52
;羽根
出願人代理人 弁理士 鈴江式彦
第1図
第2図
第3図
第4図FIG. 1 is a side view showing a continuous casting apparatus according to an embodiment of the present invention in which a melt container with nine outlet ports is applied to a tundish; FIG. 2 is a perspective view showing a vortex flow prevention member; FIG. 3 is a horizontal sectional view of the eddy flow prevention member, and FIG. 4 is a side sectional view showing the continuous VC and casting apparatus at the final stage of casting. 21: Tandaitsu, 25: (8 outflow outlets, 30: Sliding nozzle, 35: Immersion nozzle, 38: Mold,
42; Molten steel, 44; Slag, 50; Eddy flow prevention member, 52
Hane Applicant's Representative Patent Attorney Shikihiko Suzue Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
口を介して他の部材に供給する溶湯流出口を備えた溶湯
容器において、前記溶湯流出口の直上域に設置された渦
流阻止部材を有し、この渦流阻止部材は垂直方向に延び
る複数枚の羽根が溶湯流出口を中心として放射状に配設
されていることを特徴とする溶湯流出口を備えた溶湯容
器。In a molten metal container equipped with a molten metal outlet at the bottom and a molten metal outlet for supplying the stored molten metal to other members through the molten metal outlet, a vortex flow prevention member installed in an area directly above the molten metal outlet is provided. 1. A molten metal container having a molten metal outlet, wherein the vortex flow prevention member has a plurality of vertically extending blades arranged radially around the molten metal outlet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18458086A JPS6340668A (en) | 1986-08-06 | 1986-08-06 | Vessel for molten metal having molten metal outflow port |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18458086A JPS6340668A (en) | 1986-08-06 | 1986-08-06 | Vessel for molten metal having molten metal outflow port |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6340668A true JPS6340668A (en) | 1988-02-22 |
Family
ID=16155694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18458086A Pending JPS6340668A (en) | 1986-08-06 | 1986-08-06 | Vessel for molten metal having molten metal outflow port |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6340668A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1004078A3 (en) * | 1990-04-13 | 1992-09-22 | Rech S Et Dev Desaar Sa | Anti-vortex device adaptable to the tap holes of casting pockets |
WO1995015827A1 (en) * | 1993-12-06 | 1995-06-15 | Reuning-Mckim Inc. | Antivortexing nozzle system for pouring molten metal |
US5766543A (en) * | 1994-09-02 | 1998-06-16 | Foseco International Limited | Flow control device |
KR100259887B1 (en) * | 1992-05-12 | 2000-06-15 | 아아르지이도어랜스 | Refractory article for preventing vortexing in a metallurgical vessel |
DE10115097A1 (en) * | 2001-03-27 | 2002-10-24 | Rhi Ag Wien | Device for preventing a vortex effect in the outlet area of a metallurgical melting vessel |
KR20040034212A (en) * | 2002-10-21 | 2004-04-28 | 주식회사 포스코 | Device of preventing tundish vortex and impurities flowing into mold |
EP1577036A1 (en) * | 2004-03-15 | 2005-09-21 | Penox GmbH | Metering device for a melt |
JP2010236851A (en) * | 2009-03-30 | 2010-10-21 | Ge-Hitachi Nuclear Energy Americas Llc | Steam flow vortex straightener |
CN107983944A (en) * | 2018-01-13 | 2018-05-04 | 山东钢铁股份有限公司 | The method and device of molten steel casting surplus is reduced in a kind of casting process |
-
1986
- 1986-08-06 JP JP18458086A patent/JPS6340668A/en active Pending
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1004078A3 (en) * | 1990-04-13 | 1992-09-22 | Rech S Et Dev Desaar Sa | Anti-vortex device adaptable to the tap holes of casting pockets |
KR100259887B1 (en) * | 1992-05-12 | 2000-06-15 | 아아르지이도어랜스 | Refractory article for preventing vortexing in a metallurgical vessel |
US5544695A (en) * | 1993-06-01 | 1996-08-13 | Harasym; Michael | Antivortexing nozzle system for pouring molten metal |
CN1054088C (en) * | 1993-12-06 | 2000-07-05 | 罗宁·麦金公司 | Antivortexing nozzle system for pouring molten metal |
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