KR20060118786A - Nozzle preheating apparatus - Google Patents

Nozzle preheating apparatus Download PDF

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Publication number
KR20060118786A
KR20060118786A KR1020050041133A KR20050041133A KR20060118786A KR 20060118786 A KR20060118786 A KR 20060118786A KR 1020050041133 A KR1020050041133 A KR 1020050041133A KR 20050041133 A KR20050041133 A KR 20050041133A KR 20060118786 A KR20060118786 A KR 20060118786A
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South Korea
Prior art keywords
immersion nozzle
preheater body
rod
ventilating hole
preheater
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KR1020050041133A
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Korean (ko)
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KR100657572B1 (en
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이경
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주식회사 포스코
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Publication of KR20060118786A publication Critical patent/KR20060118786A/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
    • B22D41/60—Pouring-nozzles with heating or cooling means
    • 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
    • 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
    • B22D41/005—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like with heating or cooling means
    • B22D41/01—Heating means
    • 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
    • B22D41/58—Pouring-nozzles with gas injecting means

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

Abstract

A submerged nozzle preheating device capable of preventing an explosion accident due to residual gas in advance by forming a ventilating hole on a side face of the preheater body to ventilate air within a preheater body for preheating a submerged nozzle to a predetermined temperature and allowing the ventilating hole to be automatically opened or closed during inserting and separating of the submerged nozzle is provided. A submerged nozzle preheating device comprises: a preheater body(1) having plural submerged nozzle inserting holes(5) formed on an upper surface thereof, and a ventilating hole(6) formed on a side face thereof; an inflow pipe(4) installed on a lower portion of the preheater body to supply a mixed fuel of gas and air into the preheater body; a cover(40) installed on the preheater body by means of a fixed hinge(41) to selectively open and close the ventilating hole; a guiding pipe(20) installed at an upper side of the ventilating hole by means of a supporting rod(21); a liftable and lowerable rod(30) movably installed in the guiding pipe; a connecting rod(42) of which one end is connected to a lower end of the liftable and lowerable rod by means of a movable hinge(31), and of which the other end is fixed onto the surface of the cover; a compression ring(32) fixed to an upper portion of the liftable and lowerable rod; a spring(34) elastically installed between the compression ring and the guiding pipe; and a support(33) formed on a top portion of the liftable and lowerable rod.

Description

침지노즐 예열장치{Nozzle preheating apparatus}Immersion nozzle preheating apparatus {Nozzle preheating apparatus}

도1은 종래의 침지노즐 예열장치를 나타낸 사시도.1 is a perspective view showing a conventional immersion nozzle preheating device.

도2는 본 발명에 따른 침지노즐 예열장치를 나타낸 사시도.Figure 2 is a perspective view showing the immersion nozzle preheating apparatus according to the present invention.

도3은 본 발명에 따른 침지노즐 예열장치를 나타낸 사시도.Figure 3 is a perspective view of the immersion nozzle preheating apparatus according to the present invention.

도4 및 도5는 본 발명에 따른 침지노즐 예열장치의 작동상태를 나타낸 사시도.4 and 5 are perspective views showing the operating state of the immersion nozzle preheating apparatus according to the present invention.

※도면의 주요부분에 대한 부호의 설명※※ Explanation of symbols about main part of drawing ※

1 : 예열기 몸체 4 : 유입관1: preheater body 4: inlet pipe

5 : 침지노즐 삽입구 6 : 환기공5: immersion nozzle insertion hole 6: ventilation hole

20 : 안내관 21 : 지지봉20: guide 21: support rod

30 : 승강봉 31 : 가동힌지30: lifting rod 31: movable hinge

32 : 압축링 33 : 받침대32: compression ring 33: pedestal

34 : 스프링 40 : 커버34: spring 40: cover

41 :고정힌지 42 : 연결봉41: fixed hinge 42: connecting rod

본 발명은 침지노즐 예열장치에 관한 것으로서, 더욱 상세하게는 침지노즐을 소정의 온도로 예열하는 예열장치의 측면에 형성된 환기공을 침지노즐의 삽입 및 분리시 자동으로 개폐되도록 하여 환기불량으로 인한 예열장치의 폭발을 방지할 수 있는 침지노즐 예열장치에 관한 것이다.The present invention relates to an immersion nozzle preheating device, and more particularly, a ventilation hole formed on a side of a preheating device for preheating the immersion nozzle to a predetermined temperature to be opened and closed automatically when the immersion nozzle is inserted and removed, thereby preheating due to poor ventilation. The present invention relates to an immersion nozzle preheating device capable of preventing explosion of the device.

일반적으로 연속 주조 공정은 액체상태의 철이 고체가 되는 공정으로 아직 액체 상태인 용강은 몰드에 주입되고 연속 주조기를 통과하면서 냉각 응고되어 연속적으로 슬래브나 블룸, 필릿 등의 중간소재로 만들어진다.In general, the continuous casting process is a process in which the iron in the liquid state becomes a solid. The molten steel, which is still in the liquid state, is injected into a mold and cooled and solidified while passing through a continuous casting machine, and is continuously made of intermediate materials such as slab, bloom, and fillet.

연속 주조 작업 시 사용되는 침지노즐은 내화물로서 턴디쉬와 몰드(Mold)간의 용강 주입 시 강의 청정도 및 보온을 목적으로 사용된다.Immersion nozzles used in continuous casting operations are used for the purpose of cleanliness and insulation of steel during molten steel injection between tundish and mold as refractory materials.

침지노즐은 주조작업 초기 용강의 온도저하 및 급격한 온도차이에 의한 침지노즐의 균열과 파손을 방지하기 위하여 연속주조 작업 전에 턴디쉬와 함께 예열 위치에서 약 900-1,100℃정도로 예열된다.The immersion nozzle is preheated to about 900-1,100 ℃ in the preheating position together with the tundish prior to the continuous casting operation in order to prevent cracking and breakage of the immersion nozzle due to the temperature drop and rapid temperature difference of the molten steel at the beginning of the casting operation.

도1은 종래의 침지노즐 예열장치를 나타낸 사시도이다.1 is a perspective view showing a conventional immersion nozzle preheating apparatus.

여기에서 참조되는 바와 같이 예열기 몸체(1)의 하부 일 측면에는 가스공급관(2)과 공기공급관(3)이 연결되는 유입관(4)이 설치되어 있고, 상기 예열기 몸체(1)의 상면에는 복수개의 침지노즐 삽입구(5)가 형성되어 있다.As referred to herein, an inlet pipe 4 to which the gas supply pipe 2 and the air supply pipe 3 are connected is installed at one lower side of the preheater body 1, and a plurality of upper surfaces of the preheater body 1 are provided. Two immersion nozzle insertion holes 5 are formed.

한편, 상기 예열기 몸체(1)의 외측 둘레면에는 예열기 몸체(1) 내부의 온도를 확인하기 위한 온도측정기(7)가 설치되어 있다.On the other hand, the outer circumferential surface of the preheater body 1 is provided with a temperature measuring device 7 for checking the temperature inside the preheater body 1.

따라서, 침지노즐(10)을 예열 할 때에는 침지노즐 지그(11)에 침지노즐(10)을 끼운 후 상기 침지노즐 지그(11)를 잡고 침지노즐 삽입구(5)에 침지노즐(10)을 끼운다.Accordingly, when preheating the immersion nozzle 10, the immersion nozzle 10 is inserted into the immersion nozzle jig 11, and then the immersion nozzle jig 11 is grasped and the immersion nozzle 10 is inserted into the immersion nozzle insertion hole 5.

이러한 상태에서 가스공급관(2) 및 공기공급관(3)으로 연료를 공급하면 가스완 공기는 유입관(4)을 통과하면서 혼합된 후 예열기 몸체(1)의 내부에서 연소되게 된다.When fuel is supplied to the gas supply pipe 2 and the air supply pipe 3 in such a state, the gas-finished air is mixed while passing through the inlet pipe 4 and then burned in the preheater body 1.

이때 예열기 몸체(1)에 끼워진 침지노즐(10)이 소정이 온도로 예열되는 것이며, 상기 침지노즐(10)의 예열온도는 예열기 몸체(1)에 설치된 온도측정기(7)를 확인하면서 적정한 온도로 예열하는 것이다.At this time, the immersion nozzle 10 fitted to the preheater body 1 is preheated to a predetermined temperature, and the preheating temperature of the immersion nozzle 10 is at an appropriate temperature while checking the temperature measuring device 7 installed in the preheater body 1. Preheating.

상기와 같이 예열이 완료된 후 가스 및 공기의 공급을 차단시킨 후 침지노즐 지그(11)를 상부로 들어 올리면 침지노즐(10)은 예열기 몸체(1)에서 분리되고, 그 침지노즐(10)을 목적지로 이동시키는 것이다.After the preheating is completed as described above, after the gas and air supply is cut off, the immersion nozzle jig 11 is lifted upward, and the immersion nozzle 10 is separated from the preheater body 1, and the immersion nozzle 10 is destined for the destination. To move to.

그러나 이러한 종래의 예열장치는 침지노즐(10)을 삽입 분리시킬 때 예열기 몸체(1)의 내부에 잔존하는 가스를 배기시킬 수 있는 어떠한 수단도 강구되지 않았으므로, 예열기 몸체(1)의 내부에서 초기 연소시 잔존하는 가스 및 수분에 의해서 폭발로 인한 안전사고가 발생되는 등의 문제점이 있었다.However, this conventional preheater has no means for evacuating the gas remaining in the preheater body 1 when the immersion nozzle 10 is inserted and detached. There was a problem such as a safety accident caused by the explosion due to the remaining gas and moisture during combustion.

본 발명은 상기한 문제점을 해결하기 위하여 발명한 것으로서, 그 목적은 침지노즐을 소정의 온도로 예열하는 예열기 몸체의 내부 공기를 환기시킬 수 있도록 예열기 몸체의 측면에 환기공을 형성하고 침지노즐의 삽입 및 분리시 환기공이 자동으로 개폐되도록 하여 잔류가스로 인한 폭발사고를 미연에 방지할 수 있는 침지노즐 예열장치를 제공함에 있다.The present invention has been invented to solve the above problems, the object of which is to form a ventilation hole on the side of the preheater body so as to ventilate the internal air of the preheater body to preheat the immersion nozzle to a predetermined temperature and insert the immersion nozzle And it is to provide an immersion nozzle preheating device that can prevent the explosion accident due to the residual gas by opening and closing the ventilation hole automatically when separated.

상기 목적을 달성하기 위한 본 발명의 특징적인 구성을 설명하면 다음과 같다.Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

본 발명의 침지노즐 예열장치는 상면에는 복수개의 침지노즐 삽입구가 형성되고 측면에는 환기공이 형성된 예열기 몸체와, 상기 예열기 몸체의 내부에 가스와 공기가 혼합된 연료를 공급하도록 예열기 몸체의 하부에 설치된 유입관과, 상기 환기공을 선택적으로 개폐시키도록 고정힌지를 매개로 설치된 커버와, 상기 환기공의 상측에 지지봉을 매개로 설치된 안내관과, 상기 안내관에 이동 가능하게 설치된 승강봉과, 상기 승강봉의 하단부에 가동힌지를 매개로 일단부가 연결되고 타단부는 커버의 표면에 고정된 연결봉과, 상기 승강봉의 상측에 고정된 압축링과, 상기 압축링과 안내관의 사이에 탄력 설치된 스프링과, 상기 승강봉의 상단부에 형성된 받침대를 포함하여서 된 것이다.In the immersion nozzle preheating apparatus of the present invention, a plurality of immersion nozzle insertion holes are formed on an upper surface thereof, and a preheater body having a ventilation hole formed on a side thereof, and an inlet installed at a lower portion of the preheater body to supply fuel mixed with gas to the inside of the preheater body. A pipe, a cover provided through a fixed hinge to selectively open and close the ventilation hole, a guide tube installed on the upper side of the ventilation hole via a support rod, a lifting rod movably installed in the guide tube, and the lifting rod One end is connected to the lower end via a movable hinge, and the other end is connected to the connecting rod fixed to the surface of the cover, a compression ring fixed to the upper side of the lifting rod, a spring elastically installed between the compression ring and the guide tube, and the upper end of the lifting rod. Including a pedestal formed in.

이와 같은 특징을 갖는 본 발명을 상세하게 설명하면 다음과 같다.Referring to the present invention having such characteristics in detail as follows.

도2는 본 발명에 따른 침지노즐 예열장치를 나타낸 사시도이고, 도3은 본 발명에 따른 침지노즐 예열장치를 나타낸 단면도이며, 도4 및 도5는 본 발명에 따른 침지노즐 예열장치의 작동상태를 나타낸 사시도이다.Figure 2 is a perspective view showing the immersion nozzle preheating apparatus according to the present invention, Figure 3 is a sectional view showing the immersion nozzle preheating apparatus according to the present invention, Figures 4 and 5 shows the operating state of the immersion nozzle preheating apparatus according to the present invention. It is a perspective view shown.

여기에서 참조되는 바와 같이 본 발명은 예열기 몸체(1)의 상면에는 침지노즐(10)이 끼워지는 복수개의 침지노즐 삽입구(5)가 형성되어 있고, 상기 예열기 몸체(1)의 측면에는 환기공(6)이 형성되어 있되, 그 환기공(6)은 적어도 2개 이상 형성할 수도 있으며, 이때에는 각 환기공(6)을 등간격으로 형성하는 것이 바람직하 다.As referred to herein, a plurality of immersion nozzle insertion holes 5 into which the immersion nozzle 10 is fitted are formed on an upper surface of the preheater body 1, and a ventilation hole is formed on the side of the preheater body 1. 6) is formed, but at least two ventilation holes 6 may be formed, and in this case, it is preferable to form each of the ventilation holes 6 at equal intervals.

한편, 상기 예열기 몸체(1)의 하부에는 가스와 공기가 혼합된 연료를 예열기 몸체(1)의 내부로 공급하는 유입관(4)이 설치되어 있되, 그 유입관(4)에는 가스공급관(2)과 공기공급관(3)이 각각 연결되어 있다.On the other hand, the lower part of the preheater body (1) is provided with an inlet pipe (4) for supplying a fuel mixed with gas and air into the preheater body (1), the inlet pipe (4) gas supply pipe (2) ) And the air supply pipe 3 are respectively connected.

또한, 상기 환기공(6)의 상측에는 고정힌지(41)가 설치되어 있고, 그 고정힌지(41)에는 환기공(6)을 선택적으로 개폐시키기 위한 커버(40)가 설치되어 있으며, 상기 커버(40)의 외측 표면에는 연결봉(42)이 설치되어 있다.In addition, a fixed hinge 41 is provided above the ventilation hole 6, and a cover 40 for selectively opening and closing the ventilation hole 6 is provided at the fixed hinge 41. The connecting rod 42 is provided on the outer surface of the 40.

그리고, 상기 환기공(6)의 상측에는 지지봉(21)이 설치되어 있고, 그 지지봉(21)의 단부에는 안내관(20)이 설치되어 있으며, 상기 안내관(20)에는 승강봉(30)이 이동 가능하게 끼워져 있다.And, the support rod 21 is provided on the upper side of the ventilation hole 6, the guide tube 20 is installed at the end of the support rod 21, the lifting rod 30 to the guide tube 20 It is fitted to be movable.

상기 승강봉(30)의 하단부에는 가동힌지(31)를 매개로 연결봉(42)의 일단부가 연결되어 있고, 상기 승강봉(30)의 상측에는 압축링(32)이 고정되어 있으며, 상기 압축링(32)과 안내관(20)의 사이에는 스프링(34)이 탄력 설치되어 있고, 상기 승강봉(30)의 상단부에는 침지노즐 지그(11)가 끼워지는 받침대(33)가 설치되어 있다.One end of the connecting rod 42 is connected to the lower end of the elevating rod 30 via a movable hinge 31, and a compression ring 32 is fixed to an upper side of the elevating rod 30. Spring 34 is elastically installed between the guide pipe 20 and the upper end of the elevating bar 30 is provided with a pedestal 33 into which the immersion nozzle jig 11 is fitted.

이와 같이 구성된 본 발명의 작동상태를 상세히 설명하면 다음과 같다.Referring to the operating state of the present invention configured as described in detail as follows.

먼저, 침지노즐(10)을 예열 할 때에는 침지노즐(10)을 침지노즐 지그(11)에 끼운 상태에서 상기 침지노즐(10)을 예열기 몸체(1)의 상단에 형성된 침지노즐 삽입구(5)에 끼운다.First, in preheating the immersion nozzle 10, the immersion nozzle 10 is inserted into the immersion nozzle insertion hole 5 formed at the upper end of the preheater body 1 while the immersion nozzle 10 is inserted into the immersion nozzle jig 11. Insert.

상기와 같이 침지노즐(10)을 끼운 후 침지노즐 지그(11)의 선단부가 외측으 로 향하도록 놓으면, 그 침지노즐 지그(11)는 받침대(33)에 끼워지게 되므로 상기 침지노즐 지그(11)의 자중에 의해서 받침대(33)가 하부로 이동하게 된다.If the tip of the immersion nozzle jig 11 is placed to the outside after the immersion nozzle 10 is inserted as described above, the immersion nozzle jig 11 is fitted to the pedestal 33 so that the immersion nozzle jig 11 The pedestal 33 moves downward by its own weight.

상기 받침대(33)가 하부로 이동되면 그 받침대(33)가 설치된 승강봉(30)이 함께 이동되는 것이며, 이때 승강봉(30)의 하단부에 가동힌지(31)를 매개로 결합된 연결봉(42)이이동되는 것이다.When the pedestal 33 is moved to the lower portion is that the lifting bar 30 is installed with the pedestal 33 is moved together, the connecting rod 42 coupled via the movable hinge 31 to the lower end of the lifting rod 30 Is moved.

상기 연결봉(42)이 이동될 때 그 연결봉(42)이 설치된 커버(40)는 고정힌지(41)를 중심으로 회전하게 되므로 예열기 몸체(1)에 형성된 환기공(6)에 결합되어 도4에 나타낸 바와 같이 환기공(6)을 차단시키게 되는 것이며, 이때 압축링(32)은 승강봉(30)과 함께 이동되면서 스프링(34)을 압축하게 되는 것이다.When the connecting rod 42 is moved, the cover 40 having the connecting rod 42 installed therein is rotated about the fixed hinge 41 so that the coupling rod 42 is coupled to the ventilation hole 6 formed in the preheater body 1 to FIG. 4. As shown, it is to block the ventilation hole 6, wherein the compression ring 32 is to compress the spring 34 while moving with the lifting bar (30).

상술한 바와 같이 침지노즐(10)이 끼워진 후 가스공급관(2)과 공기공급관(3)으로 가스 및 공기를 공급하면 유입관(4)을 통과하면서 혼합된 후 예열기 몸체(1)의 내부에서 연소되어 침지노즐(10)을 예열하게 되는 것이다.As described above, when the immersion nozzle 10 is fitted and then gas and air are supplied to the gas supply pipe 2 and the air supply pipe 3, they are mixed while passing through the inlet pipe 4 and then burned inside the preheater body 1. It is to preheat the immersion nozzle (10).

즉, 침지노즐(10)을 예열할 때에는 커버(40)에 의해서 환기공(6)이 차단되므로 화염이 외부로 비산되는 것이 방지되는 것이다.That is, when preheating the immersion nozzle 10, the ventilation hole 6 is blocked by the cover 40, so that flames are prevented from scattering to the outside.

이와 같이 침지노즐(10)의 예열작업이 완료되면 가스 및 공기를 차단한 상태에서 침지노즐 지그(11)를 잡고 상부로 들어 올리면 침지노즐(10)은 침지노즐 삽입구(5)에서 인출되므로 목적지로 이동시키는 것이다.When the preheating operation of the immersion nozzle 10 is completed as described above, the immersion nozzle 10 is drawn out of the immersion nozzle insertion opening 5 when the gas nozzle is caught and lifted to the upper side by holding the immersion nozzle jig 11. To move.

상기 침지노즐(10)을 인출시킬 때 침지노즐 지그(11)는 받침대(33)에서 분리되는 것이므로 압축되어 있던 스프링(34)의 복원력에 의해서 압축링(32) 및 승강봉(30)이 상부로 상승하게 되는 것이다.Since the immersion nozzle jig 11 is separated from the pedestal 33 when the immersion nozzle 10 is pulled out, the compression ring 32 and the lifting rod 30 are lifted upward by the restoring force of the compressed spring 34. Will be done.

상기 승강봉(30)이 상승하면 그 하단부에 가동힌지(31)를 매개로 연결된 연결봉(42)이 당겨지게 되므로 상기 연결봉(42)이 설치된 커버(40)는 고정힌지(41)를 중심으로 회전되면서 도5에 나타낸 바와 같이 환기공(6)을 개방시키게 되는 것이다.When the elevating rod 30 is raised, the connecting rod 42 connected to the lower end by the movable hinge 31 is pulled, so that the cover 40 provided with the connecting rod 42 rotates around the fixed hinge 41. While opening the ventilation hole 6 as shown in FIG.

이와 같이 환기공(6)이 개방되면 예열기 몸체(1)의 내부에는 외부의 공기가 순환되면서 환기되므로 잔류하는 가스 및 수분이 제거되므로 예열기 몸체(1)의 내부에서 초기 연소시 잔존하는 가스 및 수분에 의한 폭발이 방지되는 것이다.As such, when the ventilation hole 6 is opened, the gas and moisture remaining during initial combustion in the preheater body 1 are removed since the remaining air and the air are circulated inside the preheater body 1 while being ventilated while the outside air is circulated. It is to prevent explosion by.

이와 같이 본 발명은 침지노즐을 소정의 온도로 예열하는 예열기 몸체의 측면에 환기공을 선택적으로 개폐시키는 커버를 형성하고 그 커버가 침지노즐의 삽입 및 분리시 자동으로 개폐되므로 예열장치가 정지되면 내부의 잔류가스 및 수분을 제거하고 예열장치를 가동시 화염이 비산되는 것을 방지하게 되므로 예열기의 사용효율을 향상시킬 수 있게되는 특유의 효과가 있다.As such, the present invention forms a cover for selectively opening and closing the ventilation hole on the side of the preheater body for preheating the immersion nozzle to a predetermined temperature, and the cover is automatically opened and closed when the immersion nozzle is inserted and removed, so that the interior of the preheater is stopped. Remove the residual gas and water and prevent the flame from scattering when operating the preheating device has a unique effect that can improve the use efficiency of the preheater.

Claims (3)

상면에는 복수개의 침지노즐 삽입구(5)가 형성되고 측면에는 환기공(6)이 형성된 예열기 몸체(1)와, 상기 예열기 몸체(1)의 내부로 가스와 공기가 혼합된 연료를 공급하도록 예열기 몸체(1)의 하부에 설치된 유입관(4)과, 상기 환기공(6)을 선택적으로 개폐시키도록 고정힌지(41)를 매개로 설치된 커버(40)와, 상기 환기공(6)의 상측에 지지봉(21)을 매개로 설치된 안내관(20)과, 상기 안내관(20)에 이동 가능하게 설치된 승강봉(30)과, 상기 승강봉(30)의 하단부에 가동힌지(31)를 매개로 일단부가 연결되고 타단부는 커버(40)의 표면에 고정된 연결봉(42)과, 상기 승강봉(30)의 상측에 고정된 압축링(32)과, 상기 압축링(32)과 안내관(20)의 사이에 탄력 설치된 스프링(34)과, 상기 승강봉(30)의 상단부에 형성된 받침대(33)를 포함함을 특징으로 하는 침지노즐 예열장치.A preheater body 1 having a plurality of immersion nozzle insertion openings 5 formed on an upper surface thereof and a ventilation hole 6 formed on a side thereof, and a preheater body supplying fuel mixed with gas to the inside of the preheater body 1. On the inlet pipe (4) provided in the lower portion of (1), the cover 40 provided via a fixed hinge 41 to selectively open and close the ventilation hole (6), and the upper side of the ventilation hole (6) A guide tube 20 installed through the support rod 21, a lifting rod 30 installed to be movable in the guide tube 20, and a movable hinge 31 at a lower end of the lifting rod 30. One end is connected and the other end is a connecting rod 42 fixed to the surface of the cover 40, a compression ring 32 fixed to the upper side of the lifting bar 30, the compression ring 32 and the guide tube 20 Immersion nozzle preheating device characterized in that it comprises a spring (34) elastically installed between the, and the support (33) formed on the upper end of the lifting bar (30). 제1항에 있어서, 상기 환기공(6)은 적어도 2개 이상 형성됨을 특징으로 하는 침지노즐 예열장치.2. The immersion nozzle preheating apparatus according to claim 1, wherein at least two ventilation holes are formed. 제2항에 있어서, 상기 환기공(6)은 등간격으로 형성됨을 특징으로 하는 침지노즐 예열장치.The immersion nozzle preheating apparatus according to claim 2, wherein the ventilation holes are formed at equal intervals.
KR1020050041133A 2005-05-17 2005-05-17 Nozzle preheating apparatus KR100657572B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101412542B1 (en) * 2012-05-31 2014-06-26 현대제철 주식회사 Preheating device of submerged entry nozzle
CN114749614A (en) * 2022-03-30 2022-07-15 广东韶钢松山股份有限公司 Energy-saving tundish submersed nozzle baking box and baking method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2756454B2 (en) * 1992-10-20 1998-05-25 新日本製鐵株式会社 Immersion nozzle preheating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101412542B1 (en) * 2012-05-31 2014-06-26 현대제철 주식회사 Preheating device of submerged entry nozzle
CN114749614A (en) * 2022-03-30 2022-07-15 广东韶钢松山股份有限公司 Energy-saving tundish submersed nozzle baking box and baking method

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