KR20010055354A - Device for opening filler of ladle - Google Patents

Device for opening filler of ladle Download PDF

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Publication number
KR20010055354A
KR20010055354A KR1019990056554A KR19990056554A KR20010055354A KR 20010055354 A KR20010055354 A KR 20010055354A KR 1019990056554 A KR1019990056554 A KR 1019990056554A KR 19990056554 A KR19990056554 A KR 19990056554A KR 20010055354 A KR20010055354 A KR 20010055354A
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KR
South Korea
Prior art keywords
ladle
nozzle
long nozzle
molten steel
wheeler
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KR1019990056554A
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Korean (ko)
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KR100422908B1 (en
Inventor
우경회
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이구택
포항종합제철 주식회사
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Priority to KR10-1999-0056554A priority Critical patent/KR100422908B1/en
Publication of KR20010055354A publication Critical patent/KR20010055354A/en
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Publication of KR100422908B1 publication Critical patent/KR100422908B1/en

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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
    • B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
    • 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
    • B22D41/14—Closures
    • B22D41/44—Consumable closure means, i.e. closure means being used only once
    • B22D41/48—Meltable closures

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

Abstract

PURPOSE: An apparatus for perforating a filler of a ladle is provided to cut off contact with the air during infusing of molten steel due to opening of a hole, thereby fundamentally cutting off the generation of oxide inclusions by possessing an apparatus in which a filler layer is forcibly perforated in a long nozzle so that hole opening is carried out in the state that the long nozzle is installed. CONSTITUTION: In a ladle for infusing molten steel into a tundish, the apparatus for perforating a filler of a ladle (100) comprises a penetrating part for perforating the hardened filler layer (131) by applying impact on the filler layer in the hole of a top nozzle (111) through the inside of the long nozzle (120) of the ladle; and a mounting part for mounting the penetrating part to the long nozzle, so that the filler hardened layer of the top nozzle is perforated in the state that the long nozzle is mounted to a collect nozzle (112) of the ladle, wherein the mounting part comprises an external pipe (10) in which the mounting part is inserted into the outside surface of the long nozzle, and an internal pipe (11) vertically installed to the center of the bottom of the external pipe and inserted through the inside of the long nozzle, and wherein the penetrating part comprises a guiding pipe (20), a gas barrel (21), a stopper (22), a warhead (23), and a blasting fuse (24).

Description

레이들의 휠러 개공장치{Device for opening filler of ladle}Ladle wheeler opening device {Device for opening filler of ladle}

본 발명은 연속주조를 위한 레이들에 관한 것으로, 특히 턴디쉬에 용강 주입시 레이들의 용강주입용 롱노즐에 삽입되어 경화된 휠러를 뚫어 주기 위한 레이들의 휠러 개공장치에 관한 것이다.The present invention relates to a ladle for continuous casting, and more particularly to a ladle wheel opening device for penetrating the hardened wheeler is inserted into the molten steel injection long nozzle of the ladle when the molten steel is injected into the tundish.

일반적으로 레이들은 도 1에 도시된 바와 같이, 제강로에서 용융된 용강을 턴디쉬(tundish;140)로 주입하기 위한 것으로, 용강이 담기는 레이들(100)의 저면에는 용강을 턴디쉬(140)로 주입하기 위한 톱노즐(111)과 콜렉트노즐(112)이 장착된 카셋트(110)가 설치되고, 콜렉트노즐(112)에는 턴디쉬(140) 내부로 삽입되는 롱노즐(120)이 끼워지게 된다.Generally, as shown in FIG. 1, the ladle is used to inject molten steel melted in a steelmaking furnace into a tundish 140, and the molten steel is tundish 140 at the bottom of the ladle 100 in which the molten steel is contained. ), A cassette 110 equipped with a top nozzle 111 and a collect nozzle 112 for injection into the nozzle is installed, and the long nozzle 120 inserted into the tundish 140 is inserted into the collect nozzle 112. do.

상기 톱노즐(111)은 내부의 노즐구멍을 통하여 용강이 턴디쉬(140)로 주입되도록 하는 역할을 하는데, 레이들(100) 내부로 초기 투입되는 용강으로부터 톱노즐(111)과 카셋트 플레이트를 보호하고 노즐구멍의 자연개공을 위해 레이들 준비작업 중에 톱노즐(111) 구멍 내부로 휠러(130)가 투입된다.The top nozzle 111 serves to inject molten steel into the tundish 140 through the nozzle hole therein, and protects the top nozzle 111 and the cassette plate from the molten steel initially introduced into the ladle 100. And the wheeler 130 is introduced into the hole of the top nozzle 111 during the ladle preparation work for the natural opening of the nozzle hole.

따라서 레이들 하부 카셋트의 콜렉트노즐에 롱노즐을 설치한 후 콜렉트노즐을 톱노즐과 맞추게 되면 톱노즐 구멍을 막고 있던 휠러가 쏟아지면서 구멍이 개공되어 용강이 롱노즐을 통해 턴디쉬로 분출되는 것이다.Therefore, when the long nozzle is installed in the collect nozzle of the lower ladle cassette and the collect nozzle is aligned with the top nozzle, the wheeler that blocks the top nozzle hole flows and the molten steel is ejected to the tundish through the long nozzle.

그런데, 레이들 내부의 용강과 바로 맞닿는 휠러층은 고온의 용강에 의해 경화되기 때문에 상기와 같이 노즐을 개방하더라도 경화된 휠러층에 막혀 용강이 쏟아지지 않는 경우가 발생된다.However, since the wheeler layer directly in contact with the molten steel in the ladle is hardened by the hot molten steel, even if the nozzle is opened as described above, the molten steel is not blocked by being blocked by the hardened wheeler layer.

이렇게 휠러가 경화된 경우에는 휠러층을 개공시키기 위한 작업을 수행하게 되는 데, 종래에는 도 4에 도시된 바와 같이, 산소토치(160)를 통해 분사되는 산소를 이용하여 레이들(100) 내부의 휠러층(131)을 개공함에 따라 먼저 롱노즐과 콜렉트노즐을 카셋트로부터 분리시켜야 하는 문제점이 있다.In this case, when the wheeler is cured, a work for opening the wheeler layer is performed. As shown in FIG. 4, the inside of the ladle 100 is formed by using oxygen injected through the oxygen torch 160. As the wheeler layer 131 is opened, there is a problem of first separating the long nozzle and the collect nozzle from the cassette.

즉, 산소토치 선단을 휠러층으로 진입시키기 위해서는 롱노즐과 콜렉트노즐을 제거해야 되는 데, 이와 같이 롱노즐이 제거된 상태에서 휠러층이 개공됨에 따라 쏟아지는 용강이 외부에 노출된 채로 턴디쉬에 주입되게 된다.In other words, in order to enter the tip of the oxygen torch into the wheeler layer, the long nozzle and the collect nozzle need to be removed.In this way, the molten steel is injected into the tundish while the wheeler layer is opened while the long nozzle is removed. Will be.

따라서 종래와 같은 산소토치에 의한 개공구조는 롱노즐에 의해 용강이 대기와 차단되지 못하게 되어 2차 산화가 발생하며, 특히 스테인리스 용강의 경우 대기 중의 질소와 반응하여 질소산화물 등의 게재물이 발생하게 되고, 이로 인해 제품에 치명적인 품질결함을 유발하게 되는 문제점이 있다.Therefore, the opening structure of the conventional oxygen torch does not block molten steel from the atmosphere by the long nozzle, so secondary oxidation occurs. In particular, stainless steel molten steel reacts with nitrogen in the atmosphere to generate nitrogen oxides and the like. And, there is a problem that causes fatal quality defects in the product.

또한, 산소토치에 의한 개공작업시 작업자가 직접 고온의 용강 레이들 하부에서 작업을 수행해야 하므로 화염 및 비산되는 파편에 의해 안전사고의 위험이 높다는 문제점이 있다.In addition, there is a problem in that the risk of safety accidents due to the flame and scattering debris is high because the worker must perform the work directly under the high temperature molten steel ladle during the opening operation by the oxygen torch.

이에 본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 롱노즐 내부에 휠러층을 강제 개공시킬 수 있는 장치를 구비하여 롱노즐을 설치한 상태에서 개공작업이 이루어질 수 있도록 함으로서, 개공에 따른 용강 주입시 대기와의 접촉을 차단하여 산화 개재물의 발생을 근원적으로 차단할 수 있도록 된 레이들의 휠러 개공장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been made in order to solve the above problems, by having a device capable of forcibly opening the wheeler layer inside the long nozzle to enable the opening work in the state in which the long nozzle is installed, the molten steel according to the opening It is an object of the present invention to provide a ladle wheeler factory that is capable of blocking the contact with the atmosphere during the injection to fundamentally block the generation of oxidation inclusions.

도 1은 일반적으로 연속주조설비에 레이들이 사용되는 상태를 도시한 도면,1 is a view showing a state in which the ladle is generally used for continuous casting equipment,

도 2는 본 발명에 따른 레이들 휠러 개공장치를 도시한 일부 절개 사시도,Figure 2 is a partial cutaway perspective view showing a ladle wheeler opening factory according to the present invention,

도 3은 본 발명의 개공장치가 설치된 상태를 도시한 단면도,3 is a cross-sectional view showing a state in which the opening device of the present invention is installed,

도 4는 종래기술에 따른 휠러 개공상태를 도시한 사시도이다.Figure 4 is a perspective view showing a wheeler opening state according to the prior art.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 외관 11 : 내관10: appearance 11: inner tube

12 : 클립 20 : 유도관12: clip 20: guide tube

21 : 가스통 22 : 스토퍼21: gas cylinder 22: stopper

23 : 탄두 24 : 도화선23: warhead 24: fuse

25 : 보호막25: protective film

상기한 바와 같은 목적을 달성하기 위한 본 발명은 롱노즐 내부를 통해 톱노즐 구멍의 휠러층에 충격을 가해 휠러층을 뚫어주기 위한 관통부와, 관통부를 롱노즐에 장착시키기 위한 장착부로 이루어진다.The present invention for achieving the above object consists of a through portion for penetrating the wheel layer by applying a shock to the wheel layer of the top nozzle hole through the inside of the long nozzle, and a mounting portion for mounting the through portion to the long nozzle.

이하 본 발명의 일실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 일반적으로 연속주조설비에 레이들이 사용되는 상태를 도시한 도면이고, 도 2는 본 발명에 따른 레이들 휠러 개공장치를 도시한 일부 절개 사시도이다.1 is a view showing a state in which a ladle is generally used in a continuous casting facility, Figure 2 is a partial cutaway perspective view showing a ladle wheeler opening factory according to the present invention.

상기한 도면에 의하면, 몰드(150)에 용강을 주입하기 위한 턴디쉬(140)의 상부에는 레이들(100)이 위치하여 몰드(150) 내부로 용강을 주입하게 되는 데, 이를 위해 레이들(100)의 하부에는 톱노즐(111)과 콜렉트노즐(112)이 설치된 카셋트(110)가 장착되고 콜렉트노즐(112)에는 턴디쉬(140) 내부로 삽입되는 롱노즐(120)이 끼워지게 된다. 그리고 레이들(100) 내부의 용강과 톱노즐(111) 사이에는 휠러(130)가 충진되어 있다.According to the above drawings, the ladle 100 is positioned on the upper portion of the tundish 140 for injecting molten steel into the mold 150 to inject molten steel into the mold 150. A cassette 110 having a top nozzle 111 and a collect nozzle 112 is installed at a lower portion of the 100, and a long nozzle 120 inserted into the tundish 140 is inserted into the collect nozzle 112. The wheeler 130 is filled between the molten steel in the ladle 100 and the top nozzle 111.

여기서 본 발명의 장착부는 롱노즐(120) 하부에 끼워져 롱노즐(120) 내부를 통해 경화되어 있는 휠러층(131) 하부로 삽입되도록 되어 있고, 관통부는 장착부 내부에 설치된다.Here, the mounting portion of the present invention is inserted into the lower portion of the long nozzle 120 is inserted into the lower wheeler layer 131 is cured through the inside of the long nozzle 120, the through portion is installed in the mounting portion.

먼저, 상기 장착부는 원형의 롱노즐(120) 외측면에 끼워지도록 된 외관(10)과, 외관(10) 밑면 중앙에 수직으로 설치되어 롱노즐(120)의 내부를 통해 삽입되는 내관(11)으로 이루어진다.First, the mounting portion 10 is fitted to the outer surface of the circular long nozzle 120, and the inner tube 11 is installed vertically in the center of the bottom surface 10 and inserted through the interior of the long nozzle 120. Is done.

외관(10)의 내측면에는 안쪽으로 돌출되는 클립(12)을 설치하여 롱노즐(120)과의 체결력을 높이도록 되어 있다.The inner surface of the exterior 10 is provided with a clip 12 protruding inward to increase the fastening force with the long nozzle 120.

여기서 외관(10)과 내관(11)의 재질은 종이재질로 하여, 즉 종이를 말아 관형태롤 제작함으로서, 사용후에는 고온의 용강에 의해 소각되도록 함이 바람직하다.Here, the material of the outer tube 10 and the inner tube 11 is made of a paper material, that is, rolled paper to produce a tubular roll, and after use, it is preferable to be incinerated by hot molten steel.

한편, 장착부에 설치되는 관통부는 내관(11) 내측면에 밀착설치되는유도관(20)과, 유도관(20) 내부에 삽입되고 내부에 가스가 충만되는 가스통(21), 유도관(20) 내측면에 돌출설치되어 가스통(21)을 일정위치에 정지시킬 수 있도록 된 스토퍼(22), 가스통(21) 상부에 밀폐설치되어 가스 폭발에 의해 발사되는 탄두(23), 가스통(21) 하부에 설치되어 가스통(21) 내부 가스를 점화시키기 위한 도화선(24)으로 이루어진다.On the other hand, the through portion provided in the mounting portion is induction pipe 20 is installed in close contact with the inner surface of the inner pipe 11, the gas cylinder 21, the induction pipe 20 is inserted into the induction pipe 20 and filled with gas inside A stopper 22 protruding from the inner side to stop the gas cylinder 21 at a predetermined position, and a sealer installed at an upper portion of the gas cylinder 21 to be released by a gas explosion in the warhead 23 and the lower portion of the gas cylinder 21. It is provided with a conductive wire 24 for igniting the gas inside the gas cylinder 21.

상기 내관(11)의 하부에는 얇은 종이재질의 보호막(25)으로 차단시켜 가스통(21)의 도화선(24)이 내관(11) 외부로 노출되지 않도록 하고 도화선(24) 끝은 보호막(25)에 부착설치한다.The lower portion of the inner tube 11 is blocked by a thin film of protective film 25 so that the conductive line 24 of the gas cylinder 21 is not exposed to the outside of the inner tube 11 and the tip of the conductive line 24 is connected to the protective layer 25. Attach and install.

또한, 유도관(20)과 탄두(23)는 스틸재질로 하여 강성을 유지할 수 있도록 한다.In addition, the guide tube 20 and the warhead 23 are made of steel so that the rigidity can be maintained.

도 3은 본 발명의 단면도로서, 롱노즐(120)에 끼워지는 외관(10)과 롱노즐(120) 내부를 통해 삽입되는 내관(11)이 막혀있는 휠러층(131) 바로 하부까지 삽입됨을 알 수 있고, 내관(11)에 설치되는 유도관(20) 하부쪽에 탄두(23)가 부착된 가스통(21)이 장착되어 있음을 보여주고 있다.3 is a cross-sectional view of the present invention, it is seen that the outer 10 is inserted into the long nozzle 120 and the inner tube 11 inserted through the inside of the long nozzle 120 is inserted just below the wheeler layer 131 is blocked. It can be seen that the gas cylinder 21 is attached to the warhead 23 is attached to the lower side of the induction pipe 20 is installed in the inner tube (11).

이하 본 발명의 작용에 대해 설명하면 다음과 같다.Hereinafter will be described the operation of the present invention.

레이들(100)이 턴디쉬(140) 상부로 이송되면 레이들(100)의 하부 콜렉트노즐(112)에 롱노즐(120)을 설치한 후 용강 주입을 위해 콜렉트노즐(112)을 톱노즐(111)과 일치시키게 된다.When the ladle 100 is transported to the upper portion of the tundish 140, the long nozzle 120 is installed at the lower collector nozzle 112 of the ladle 100, and then the collector nozzle 112 is top saw for injection of molten steel. 111).

톱노즐(111)과 콜렉트노즐(112)이 일치되면, 먼저 톱노즐(111) 구멍에 충진되어 있던 휠러(130)가 흘러내리면서 구멍이 개방되어 용강이 쏟아지게 되는 데,이때 용강과 맞닿은 휠러층(131)이 경화되어 용강이 쏟아지지 않는 경우에는 본 발명의 개공장치를 롱노즐(120)에 설치하여 휠러층(131)을 개공시킬 수 있게 되는 것이다.When the top nozzle 111 and the collect nozzle 112 coincide with each other, the wheel roller 130 filled in the hole of the top nozzle 111 flows down and the hole is opened to allow molten steel to be poured. When the layer 131 is hardened so that molten steel does not pour, the opening factory of the present invention may be installed in the long nozzle 120 to open the wheeler layer 131.

즉, 용강이 주입되지 않는 경우에는 작업자는 별도의 지그(도시되지 않음)를 이용하여 콜렉트노즐(112)에 설치되어 있는 롱노즐(120)을 분리한 후 분리된 롱노즐(120) 하부를 통해 롱노즐(120) 내부로 내관(11)을 삽입하면서 외관(10)을 롱노즐(120) 외측에 끼워 설치한다.That is, when molten steel is not injected, the operator separates the long nozzle 120 installed in the collect nozzle 112 using a separate jig (not shown), and then separates the long nozzle 120 through the lower portion. While the inner tube 11 is inserted into the long nozzle 120, the exterior 10 is fitted to the outside of the long nozzle 120.

여기서 외관(10)이 롱노즐(120)에 끼워짐에 따라 외관(10)의 내측면에 설치된 클립(12)이 롱노즐(120)에 눌려져 외관(10)의 이탈을 방지하게 된다.Here, as the exterior 10 is fitted to the long nozzle 120, the clip 12 installed on the inner surface of the exterior 10 is pressed by the long nozzle 120 to prevent the exterior 10 from being separated.

외관(10)이 완전히 끼워지게 되면, 롱노즐(120) 상부로 돌출되어 있는 내관(11)을 콜렉트노즐(112) 구멍을 통해 위로 삽입시키면서 롱노즐(120)을 콜렉트노즐(112)에 끼워 설치한다.When the exterior 10 is fully fitted, the long nozzle 120 is inserted into the collect nozzle 112 while the inner tube 11 protruding upward from the long nozzle 120 is inserted through the hole of the collect nozzle 112. do.

본 발명의 개공장치가 설치된 롱노즐(120)이 턴디쉬(140) 내부로 진입하게 되면, 턴디쉬(140) 내부의 열에 의해 내관(11) 하부를 막고 있는 보호막(25)이 연소되면서 보호막(25)에 접착되어 있는 가스통(21)의 도화선(24)이 점화되게 된다.When the long nozzle 120 having the opening device of the present invention is installed into the tundish 140, the protective film 25 blocking the lower portion of the inner tube 11 is burned by the heat inside the tundish 140. The conductive wire 24 of the gas cylinder 21 adhered to 25 is ignited.

따라서 점화된 도화선(24)은 가스통(21) 내부의 인화성 가스에 불꽃을 튀겨 가스를 폭발시키게 되고, 가스통(21) 상부를 막고 있는 탄두(23)가 폭발되는 가스의 폭발압력에 의해 밀려나가 유도관(20)을 따라 발사되게 된다.Therefore, the ignited fuse 24 causes the gas to explode by splashing a flame on the flammable gas inside the gas cylinder 21, and the warhead 23 blocking the top of the gas cylinder 21 is pushed out by the explosion pressure of the exploding gas. It will be fired along the tube (20).

이렇게 발사된 탄두(23)는 경화된 휠러층(131)에 부딪치면서 휠러층(131)을 뚫어주게 되고, 따라서 개공된 휠러층(131)으로 용강이 쏟아져 롱노즐(120)을 통해턴디쉬(140)로 주입되게 된다.The warhead 23 thus fired penetrates the wheeler layer 131 while hitting the cured wheeler layer 131, and thus molten steel is poured into the opened wheeler layer 131, thereby making the tundish ( 140).

한편, 롱노즐(120)에 설치된 외관(10)과 내관(11)은 종이재질로 되어 있기 때문에 용강이 롱노즐(120)을 통해 분출되면, 고온의 용강에 의해 연소되어 제거되고, 스틸재질의 유도관(20)과 가스통(21) 및 탄두(23)는 모두 용강속으로 용해되게 된다.On the other hand, since the exterior 10 and the inner tube 11 installed in the long nozzle 120 are made of paper, when molten steel is ejected through the long nozzle 120, it is burned and removed by hot molten steel, and made of steel. The induction pipe 20, the gas cylinder 21, and the warhead 23 are all dissolved in the molten steel.

이상 설명한 바와 같이 본 발명에 따른 레이들 휠러 개공장치에 의하면, 롱노즐을 설치한 상태에서 경화된 휠러층을 개공시킬 수 있게 됨으로서, 용강과 대기의 접촉에 의한 2차산화 및 게재물 발생을 방지하여 주편 품질을 높일 수 있으며, 개공작업시 발생될 수 있는 산업 안전재해를 미연에 방지할 수 있는 효과가 있다.As described above, according to the ladle wheeler opening device according to the present invention, it is possible to open the hardened wheeler layer in the state where the long nozzle is installed, thereby preventing secondary oxidation and inclusions caused by the contact between molten steel and the atmosphere. It is possible to increase the quality of the cast, and to prevent the industrial safety accidents that may occur during the opening work in advance.

Claims (4)

턴디쉬에 용강을 주입하기 위한 레이들에 있어서,In the ladle for injecting molten steel into the tundish, 상기 레이들의 롱노즐 내부를 통해 톱노즐 구멍의 휠러층에 충격을 가해 경화된 휠러층을 뚫어주기 위한 관통부와, 관통부를 롱노즐에 장착시키기 위한 장착부로 이루어져 레이들의 콜렉트노즐에 롱노즐이 장착된 상태에서 톱노즐의 휠러 경화층을 개공시킬 수 있도록 된 것을 특징으로 하는 레이들의 휠러 개공장치.The long nozzle is mounted on the collect nozzle of the ladle, which includes a through part for penetrating the wheel layer of the top nozzle hole through the inside of the long nozzle of the ladle, and a mounting part for mounting the through part to the long nozzle. Ladle wheeler opening device, characterized in that to be able to open the wheeled hardened layer of the top nozzle in the state. 제 1 항에 있어서, 상기 장착부가 롱노즐 외측면에 끼워지도록 된 외관과, 외관 밑면 중앙에 수직으로 설치되어 롱노즐의 내부를 통해 삽입되는 내관으로 이루어진 것을 특징으로 하는 레이들의 휠러 개공장치.The ladle wheel opening device according to claim 1, wherein the mounting part comprises an outer tube fitted to the outer side of the long nozzle, and an inner tube vertically installed at the center of the outer side of the outer nozzle and inserted into the inner side of the long nozzle. 제 1 항 또는 제 2 항에 있어서, 상기 관통부는 내관 내측면에 밀착설치되는 유도관과, 유도관 내부에 삽입되고 내부에 가스가 충만되는 가스통, 유도관 내측면에 돌출설치되어 가스통을 일정위치에 정지시킬 수 있도록 된 스토퍼, 가스통 상부에 밀폐설치되어 가스 폭발에 의해 발사되는 탄두, 가스통 하부에 설치되어 가스통 내부 가스를 점화시키기 위한 도화선으로 이루어진 것을 특징으로 하는 레이들의 휠러 개공장치.According to claim 1 or claim 2, wherein the through portion is induction pipe is installed in close contact with the inner surface of the inner tube, the gas cylinder is inserted into the inside of the induction pipe filled with gas, protruding to the inner surface of the induction pipe is installed in a certain position A stopper for stopping a stopper, a warhead installed in the upper part of the gas cylinder is fired by a gas explosion, the wheeler opening device of the ladle, characterized in that consisting of a conductive line for igniting the gas inside the gas cylinder is installed under the gas cylinder. 제 2 항에 있어서, 상기 내관과 외관은 종이재질로 되어 사용후 고온의 용강에 의해 소각되는 것을 특징으로 하는 레이들의 휠러 개공장치.3. The ladle wheeler opening device according to claim 2, wherein the inner tube and the outer tube are made of paper and incinerated by hot molten steel after use.
KR10-1999-0056554A 1999-12-10 1999-12-10 Device for opening filler of ladle KR100422908B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100396082B1 (en) * 1999-12-24 2003-08-27 주식회사 포스코 Device for opening filler of ladle
KR20200067543A (en) * 2018-12-04 2020-06-12 주식회사 포스코 Device for opening molten metal outlet of ladle

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KR101040868B1 (en) 2004-05-21 2011-06-14 주식회사 포스코 Device for opening filler of ladle

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US4746037A (en) * 1986-11-14 1988-05-24 Vesuvius Crucible Company Apparatus for unplugging a vessel discharge port
JPH01166877A (en) * 1987-12-23 1989-06-30 Shinagawa Refract Co Ltd Opener and opening method of insert nozzle for slide valve device
JPH09277029A (en) * 1996-04-16 1997-10-28 Nkk Corp Method for removing clogging of nozzle for discharging molten steel in ladle
JPH09277030A (en) * 1996-04-16 1997-10-28 Nkk Corp Device for removing clogging of nozzle for discharging molten steel in ladle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100396082B1 (en) * 1999-12-24 2003-08-27 주식회사 포스코 Device for opening filler of ladle
KR20200067543A (en) * 2018-12-04 2020-06-12 주식회사 포스코 Device for opening molten metal outlet of ladle

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