KR20030054404A - Device for blocking slag of tundish in continuous casting plant - Google Patents
Device for blocking slag of tundish in continuous casting plant Download PDFInfo
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- KR20030054404A KR20030054404A KR1020010084546A KR20010084546A KR20030054404A KR 20030054404 A KR20030054404 A KR 20030054404A KR 1020010084546 A KR1020010084546 A KR 1020010084546A KR 20010084546 A KR20010084546 A KR 20010084546A KR 20030054404 A KR20030054404 A KR 20030054404A
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- tundish
- lug
- molten steel
- refractory block
- foreign matter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
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- 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
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- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Abstract
Description
본 발명은 연속주조설비의 턴디쉬에 관한 것으로, 더욱 상세하게는 주조작업완료 후 턴디쉬 내에 남아 있는 잔탕을 제거함과 더불어 턴디쉬 내 이물질의 몰드 유입을 차단할 수 있도록 된 턴디쉬 내 이물질 차단장치에 관한 것이다.The present invention relates to a tundish of the continuous casting equipment, and more particularly to the foreign matter blocking device in the tundish to remove the residual water remaining in the tundish after the completion of the casting operation, and to block the inflow of mold in the foreign matter in the tundish. It is about.
일반적으로 연속주조설비는 제강로에서 생산되어 레이들로 이송된 용강을 턴디쉬에 받았다가 몰드로 공급하여 일정한 크기의 슬라브를 연속 생산하는 설비로서, 제강공정에서 정련된 용강을 담고 있는 레이들과 레이들을 지지하는 레이들 터렛, 레이들로부터 용강을 공급받아 일시적으로 용강을 저장한 후 각 스트랜드로 분배하는 턴디쉬, 턴디쉬에서 주입된 용강을 일정한 형상으로 초기 응고시켜 주는 수냉몰드, 미응고 주편으로부터 열을 빼앗아 응고를 완료시키면서 주편을 밴딩 혹은 교정할 수 있는 롤과 스프레이노즐로 구성된 2차냉각대, 그리고 주편 절단장치, 주편이송롤러테이블, 냉각 야드, 주편표면 용삭장치 등으로 구성되어 있다.In general, continuous casting equipment receives molten steel produced in a steelmaking furnace and is transferred to ladles and supplies it to a mold to continuously produce slabs of a certain size, and includes ladles containing molten steel refined in the steelmaking process. Ladle turret for supporting ladle, tundish for temporarily storing molten steel from ladle and distributing it to each strand, and water-cooled mold and unsolidified cast for initial solidifying molten steel injected from tundish into a certain shape It consists of a secondary cooler consisting of rolls and spray nozzles that can bend or straighten the slab while removing heat from the solidification, and the slab cutting device, the slab feed roller table, the cooling yard, and the slab surface grinding device.
여기서 상기 턴디쉬는 연속적으로 슬라브를 생산할 수 있도록 레이들로부터 용강을 받아 계속적으로 용강을 몰드에 주입시키기 위한 것으로, 도 1에 도시된 바와 같이, 턴디쉬(10) 상부 커버(11)에 형성된 유입구를 통해 삽입되는 레이들의 쉬라우드노즐(12)을 통해 용강을 받아 하부에 설치된 슬라이드게이트와 침지노즐을 통해 몰드 내로 용강을 주입하게 된다.Wherein the tundish is to receive molten steel from the ladle to continuously produce the slab to continuously inject molten steel into the mold, as shown in Figure 1, the inlet formed in the top cover 11 of the tundish 10 Molten steel is received through the shroud nozzle 12 of the ladle inserted through the molten steel is injected into the mold through the slide gate and the immersion nozzle installed in the lower portion.
여기서 상기 턴디쉬(10)는 내부에 수직댐(13)이 형성되며 수직댐(13)의 하부에는 구멍(14)이 형성되어 레이들로부터 주입된 용강을 침지노즐쪽으로 보내게 되는 데, 최초 레이들로부터 용강이 주입되는 경우 상기 구멍을 통해 용강이 바로 흘러들어감으로서 이물질이 부상분리될 시간적 여유가 없어 이물질이 몰드로 혼입되는 문제점이 있다.Here, the tundish 10 has a vertical dam 13 formed therein and a hole 14 formed at the bottom of the vertical dam 13 to send molten steel injected from the ladle toward the immersion nozzle. When molten steel is injected from the molten steel, the molten steel flows directly through the hole, and thus there is a problem that the foreign matter is mixed into the mold because there is no time for the foreign matter to be separated.
이에 따라 연주 조주작업시 생산되는 주편에 영향을 주어, 연주 주편 품질 저하에 지대한 영향을 미치는 문제가 있다.Accordingly, there is a problem that affects the cast produced during the performance of the cast cast, which greatly affects the quality of the cast cast.
또한, 종래에는 주조작업 완료 후 턴디쉬 잔탕을 제거하기 위해 화염 및 분진이 다량으로 발생되는 상태에서 잔탕을 제거하는 데 사용되는 잔탕고리를 삽입하기 때문에 수분 함유로 인한 폭발 및 작업자의 화상 재해 등 안전사고가 발생하는 문제점이 있다.In addition, conventionally, after the completion of the casting operation to remove the tundish residues in the state that a large amount of flame and dust is inserted into the residue ring used to remove the residues are safe, such as explosion due to moisture content and burn injury of the worker There is a problem that an accident occurs.
이에 본 발명은 상기와 같은 제반 문제점을 해결하기 위하여 안출된 것으로, 턴디쉬에 용강이 주입될 때 턴디쉬 내에 설치된 수직댐의 구멍을 막아주는 역할을 하여 초기 용강 주입시 이물질이 구멍을 통과하지 못하도록 함으로서 부상분리 시간을 확보할 수 있도록 된 턴디쉬 내 이물질 차단장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, it serves to block the hole of the vertical dam installed in the tundish when molten steel is injected into the tundish so that foreign matter does not pass through the hole during the initial molten steel injection. The purpose is to provide a foreign matter blocking device in the tundish to ensure the separation time of the float.
또한, 본 발명은 주조작업 완료 후 턴디쉬 내 잔탕과 융착되어 잔탕고리 역할을 제공할 수 있도록 된 턴디쉬 내 이물질 차단장치를 제공함에 또다른 목적이 있다.In addition, the present invention is another object of the present invention to provide a foreign matter blocking device in the tundish to be fused with the residue in the tundish after the completion of the casting operation to provide the role of the residual ring.
도 1은 일반적인 턴디쉬를 도시한 일부 절개 사시도,1 is a partial cutaway perspective view showing a general tundish,
도 2는 본 발명에 따라 턴디쉬 내에 이물질 차단장치가 설치된 상태를 도시한 사시도,2 is a perspective view illustrating a state in which a foreign matter blocking device is installed in a tundish according to the present invention;
도 3은 본 발명에 따른 이물질 차단장치를 도시한 일부 절개 사시도,Figure 3 is a partially cut perspective view showing a foreign matter blocking device according to the present invention,
도 4는 본 발명에 따른 이물질 차단장치의 부분 사시도,Figure 4 is a partial perspective view of the foreign matter blocking device according to the present invention,
도 5는 본 발명에 따른 이물질 차단장치의 사용 상태를 도시한 사시도이다.5 is a perspective view showing a state of use of the foreign matter blocking device according to the present invention.
* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
10 : 턴디쉬 11 : 커버10: tundish 11: cover
13 : 수직댐 14 : 구멍13: vertical dam 14: hole
20 : 내화물블럭 30 : 러그20: refractory block 30: rug
31 : 베이스판 32 : 홀31: base plate 32: hole
상기한 바와 같은 목적을 달성하기 위하여 본 발명의 이물질 차단장치는, 턴디쉬 내의 수직댐에 형성된 구멍을 막는 크기의 내화물블록으로 이루어지며, 내화물블록 내부에 잔탕과 융착되는 잔탕제거용 러그를 삽입한 것을 특징으로 한다.In order to achieve the object as described above, the foreign matter blocking device of the present invention is made of a refractory block having a size of blocking a hole formed in a vertical dam in the tundish, and inserted into the refractory block a residue removal lug that is fused with a residue. It is characterized by.
이하 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 일반적인 턴디쉬를 도시한 일부 절개 사시도이며, 도 2는 본 발명에 따라 턴디쉬 내에 이물질 차단장치가 설치된 상태를 도시한 사시도이고, 도 3은 본 발명에 따른 이물질 차단장치를 도시한 일부 절개 사시도이며, 도 4는 본 발명에 따른 이물질 차단장치의 부분 사시도이다.1 is a partial cutaway perspective view showing a general tundish, Figure 2 is a perspective view showing a foreign matter blocking device is installed in the tundish according to the present invention, Figure 3 is a part showing a foreign matter blocking device according to the present invention Sectional perspective view, Figure 4 is a partial perspective view of the foreign matter blocking device according to the present invention.
상기한 도면에 의하면, 턴디쉬(10)는 턴디쉬(10) 상부 커버(11)에 형성된 유입구를 통해 레이들의 쉬라우드노즐(12)로부터 용강을 받아 하부에 설치된 침지노즐을 통해 몰드 내로 용강을 주입하는 구조로, 내부에는 수직댐(13)이 형성되며 수직댐(13)의 하부에는 구멍(14)이 형성되어 레이들로부터 주입된 용강을 침지노즐쪽으로 보내게 된다.According to the above drawings, the tundish 10 receives the molten steel from the shroud nozzle 12 of the ladle through the inlet formed in the upper cover 11 of the tundish 10 and draws the molten steel into the mold through an immersion nozzle installed at the bottom thereof. Injecting structure, a vertical dam 13 is formed inside the hole 14 is formed in the lower portion of the vertical dam 13 to send the molten steel injected from the ladle toward the immersion nozzle.
상기한 구조의 턴디쉬(10)에 있어서, 본 발명의 이물질 차단장치는, 턴디쉬(10) 내의 수직댐(13)에 형성된 구멍(14)을 막는 크기의 내화물블럭(20)으로 이루어지며, 내화물블럭(20) 내부에 잔탕과 융착되는 잔탕제거용 러그(30)를 삽입한 것을 특징으로 한다.In the tundish 10 having the above-described structure, the foreign matter blocking device of the present invention includes a refractory block 20 having a size of blocking the hole 14 formed in the vertical dam 13 in the tundish 10. It is characterized in that the bantang removal lug 30 is inserted into the refractory block 20 is fused with the tang.
상기 내화물블럭(20)은 사각형 구조로 수직댐(13)에 형성되는 구멍(14)을 막는 정도의 크기로 이루어지면 충분하며 러그(30) 외측에 부정형내화물을 부착하여 제조된다.The refractory block 20 is a rectangular structure is enough to block the holes 14 formed in the vertical dam 13 is sufficient and is produced by attaching the amorphous refractory to the outside of the lug (30).
또한 상기 잔탕제거용 러그(30)는 전면에 크레인의 후크(50)가 걸릴 수 있도록 홀(32)이 형성된 구조로 하부에는 중량체로 되어 무게추 역할을 하여 러그(30)를 위로 향하도록 하는 베이스판(31)이 부착설치된다.In addition, the bantang removal lug 30 is a structure in which the hole 32 is formed so that the hook 50 of the crane can be caught on the front surface of the base to serve as a weight to the weight to the lug 30 upward The plate 31 is attached.
그리고 상기 내화물블럭(20)은 도 3에서와 같이 베이스판(31)이 일측면에 치우치도록 하여 러그(30) 외측에 부착됨에 따라 내화물블럭(20)의 일측으로 전체 무게가 집중되도록 한다. 이러한 구조는 용탕에 내화물블럭(20)이 부상되어 있을 때, 무게가 무거운 베이스판(31)쪽이 아래로 향하도록 하는 데 기여한다.And the refractory block 20 so that the base plate 31 is biased to one side as shown in Figure 3 so that the entire weight is concentrated on one side of the refractory block 20 as it is attached to the outside of the lug (30). This structure contributes to the heavy weight of the base plate 31 to face downward when the refractory block 20 is injured in the molten metal.
이하 본 발명의 작용에 대해 도 5를 참조하여 설명한다.Hereinafter, the operation of the present invention will be described with reference to FIG. 5.
본 발명의 내화물블럭(20)은 먼저 턴디쉬(10) 내에 용탕 주입 전에 턴디쉬(10) 내부 수직댐(13)에 형성된 구멍(14) 앞에 위치시켜 구멍(14)을 막아준다.The refractory block 20 of the present invention first blocks the hole 14 by placing it in front of the hole 14 formed in the vertical dam 13 inside the tundish 10 before the molten metal is injected into the tundish 10.
이 상태에서 턴디쉬(10)를 예열한 후 레이들로부터 턴디쉬(10) 내에 용강을 주입한다.After preheating the tundish 10 in this state, molten steel is injected into the tundish 10 from the ladle.
본 장치는 잔탕제거용 고리역할을 하는 러그(30)를 안에 넣고 내화물로 외벽을 조립함으로서 턴디쉬(10)에서 발생하는 용강의 복사열에 러그(30)가 견딜 수 있게 된다.This device is to put the lug 30 to act as a remnant remover to assemble the outer wall with the refractory to the lug 30 to withstand the radiant heat generated from the tundish 10.
턴디쉬(10) 내에 용강이 주입되면 용강은 수직댐(13)의 구멍(14)을 막고 있는 내화물블럭(20)에 의해 침지노즐로 유입되지 못하게 되므로, 턴디쉬(10) 내에 이물질 등이 침지노즐로 유입되지 못하고 용강과 함께 부상되면서 분리될 수 있게된다.When molten steel is injected into the tundish 10, the molten steel does not flow into the immersion nozzle by the refractory block 20 blocking the hole 14 of the vertical dam 13, and thus foreign matters are immersed in the tundish 10. It does not flow into the nozzle and floats with the molten steel so that it can be separated.
턴디쉬(10) 내에 용강이 점차 차오르게 되면 용강과의 비중차에 의해 상기 내화물블럭(20)이 부상하게 되는 데, 이때는 이미 이물질이 용강 상부로 부상된 뒤이기 때문에 이물질이 수직댐(13)의 구멍(14)을 통해 침지노즐로 유입되지 못하게 된다.When the molten steel gradually rises in the tundish 10, the refractory block 20 is floated due to the specific gravity difference with the molten steel. At this time, since the foreign matter has already floated to the upper part of the molten steel, the foreign matter is vertically damaged. Through the hole 14 of the can not be introduced into the immersion nozzle.
이와같이 내화물블럭(20)은 용강의 흐름을 1차적으로 차단함으로서 턴디쉬(10) 내부에 있는 이물질 등이 부상분리할 수 있는 시간을 확보하게 되는 것이다.In this way, the refractory block 20 to block the flow of the molten steel primarily to ensure the time for the separation of foreign matter, etc. in the tundish (10).
한편, 용강 상부로 부상된 내화물블럭(20)은 내부에 삽입된 베이스판(31)의 무게에 의해 무게중심이 베이스판(31)쪽으로 이동하여 베이스판(31)이 아래를 향하고 러그(30)가 위를 향한 상태로 부상된다.On the other hand, the refractory block 20 floating in the upper portion of the molten steel is moved toward the base plate 31 by the weight of the base plate 31 inserted therein so that the base plate 31 faces downward and the lug 30 Injury with scissors facing up.
주조작업이 완료되면서 턴디쉬(10) 내의 용강이 점차 줄어들게 되면 내화물블럭(20) 또한 베이스판(31)이 아래를 향한 상태로 용강과 함께 하강하여 잔탕 위에 올려지게 되고 잔탕 위에 융착되게 된다.When the molten steel in the tundish 10 is gradually reduced while the casting operation is completed, the refractory block 20 is also lowered along with the molten steel in a state where the base plate 31 faces downward and is fused onto the remnant.
잔탕이 굳어지면 잔탕에 융착되어 있는 본 발명의 내화물블럭(20) 상부를 타격하여 깨뜨림으로서 내화물블럭(20) 내부에 삽입되어 있는 러그(30)를 노출시킬 수 있게 되고, 노출된 러그(30)에 크레인의 후크(50)를 걸어 잔탕을 용이하게 제거할 수 있게 된다.When the tang is hardened, the upper part of the refractory block 20 of the present invention, which is fused to the tang, can be hit and broken to expose the lug 30 inserted into the refractory block 20, and the exposed lug 30 is exposed. Hang the hook 50 of the crane to be able to easily remove the residual water.
이상 설명한 바와 같은 본 발명에 따른 턴디쉬 내 이물질 차단장치에 의하면, 초기 용강의 흐름을 일정시간 차단함으로서 턴디쉬 내의 이물질의 부상분리시간을 확보하여 몰드 내로 이물질이 유입되는 것을 방지할 수 있게된다.According to the foreign matter blocking device in the tundish according to the present invention as described above, by blocking the flow of the initial molten steel for a predetermined time to ensure the separation time of the foreign matter in the tundish to prevent foreign matters from entering the mold.
이에 따라 용강의 품질을 향상시킬 수 있게되는 것이다.Accordingly, it is possible to improve the quality of the molten steel.
또한, 주조작업 오나료 후 턴디쉬 내 잔탕고리를 삽입하는 번거로운 과정을 생략하고 잔탕고리 삽입없이 잔탕을 용이하게 제거할 수 있게 되어 작업시간과 노력을 줄일 수 있게 된다.In addition, it is possible to eliminate the cumbersome process of inserting the residual ring in the tundish after the casting work after completion, and to easily remove the residual water without inserting the residual ring to reduce the work time and effort.
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020010084546A KR100778743B1 (en) | 2001-12-24 | 2001-12-24 | Device for blocking slag of tundish in continuous casting plant |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020010084546A KR100778743B1 (en) | 2001-12-24 | 2001-12-24 | Device for blocking slag of tundish in continuous casting plant |
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| KR100778743B1 KR100778743B1 (en) | 2007-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009038282A1 (en) * | 2007-09-20 | 2009-03-26 | Sm T & D Co., Ltd. | Lug for vessel |
| KR20150091727A (en) * | 2014-02-03 | 2015-08-12 | 주식회사 삼정제이피에스 | Ferro silicon molding apparatus |
| KR20210044093A (en) * | 2019-10-14 | 2021-04-22 | 주식회사 포스코 | Container, processing method for container and processing method for melt |
| KR20210054867A (en) * | 2019-11-06 | 2021-05-14 | 한국원자력연구원 | Device for Manufacturing Metal Fuel Core having Lifter for Removing molten Metal and Method for Removing Molten Metal Using the Same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942194Y2 (en) * | 1980-06-30 | 1984-12-08 | 日本鋼管株式会社 | Cap for initial casting seal of weir hole of continuous casting tundish |
| JPS58152351U (en) * | 1982-04-06 | 1983-10-12 | 日本鋼管株式会社 | Tandate for continuous casting |
| JPS6133364U (en) * | 1984-07-31 | 1986-02-28 | 岩崎電気株式会社 | metal halide lamp |
| JPH02138047U (en) * | 1989-04-17 | 1990-11-19 |
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2001
- 2001-12-24 KR KR1020010084546A patent/KR100778743B1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009038282A1 (en) * | 2007-09-20 | 2009-03-26 | Sm T & D Co., Ltd. | Lug for vessel |
| KR20150091727A (en) * | 2014-02-03 | 2015-08-12 | 주식회사 삼정제이피에스 | Ferro silicon molding apparatus |
| KR20210044093A (en) * | 2019-10-14 | 2021-04-22 | 주식회사 포스코 | Container, processing method for container and processing method for melt |
| KR20210054867A (en) * | 2019-11-06 | 2021-05-14 | 한국원자력연구원 | Device for Manufacturing Metal Fuel Core having Lifter for Removing molten Metal and Method for Removing Molten Metal Using the Same |
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| KR100778743B1 (en) | 2007-11-23 |
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