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KR20030053684A - Multistage mudgun nozzle tip - Google Patents

Multistage mudgun nozzle tip Download PDF

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Publication number
KR20030053684A
KR20030053684A KR1020010083632A KR20010083632A KR20030053684A KR 20030053684 A KR20030053684 A KR 20030053684A KR 1020010083632 A KR1020010083632 A KR 1020010083632A KR 20010083632 A KR20010083632 A KR 20010083632A KR 20030053684 A KR20030053684 A KR 20030053684A
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South Korea
Prior art keywords
nozzle tip
tip
mud
mud gun
nozzle
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KR1020010083632A
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Korean (ko)
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KR100838837B1 (en
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이승규
정대길
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주식회사 포스코
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/12Opening or sealing the tap holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/15Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509Tapping equipment
    • F27D3/1536Devices for plugging tap holes, e.g. plugs stoppers

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

본 발명은 고로 출선구를 폐쇄하는 설비인 머드건의 노즐팁에 관한 것으로서, 더욱 상세하게는 노즐팁이 용손되거나 마모되었을 경우 새로운 노즐팁으로의 교환이 용이하여 출선구를 효율적으로 폐쇄할 수 있는 다단 머드건 노즐팁에 관한 것이다.The present invention relates to a nozzle tip of the mud gun, which is a facility for closing the blast furnace outlet, and more particularly, when the nozzle tip is melted or worn out, it is easy to replace with a new nozzle tip, which can be effectively closed in multiple stages. Mudgun nozzle tip.

본 발명의 다단 머드건 노즐팁은, 출선구면(11)과 정확하게 접합되는 팁면(25)을 가지고, 동일 형태의 다른 팁이나 머드건 노즐(21)과의 결합 체결을 위한 나사부(34, 35)를 구비하며, 그 외부에는 분리를 위한 렌치홈(37)이 일체화되어 있고, 내부에는 토출되는 머드재(28)의 이동 통로인 머드재 토출구(27)가 형성되어 있는 원통형의 노즐팁(31, 32, 33)이 다수개 체결되어 이루어지며, 최후단의 노즐팁(33)은 상기 머드건 노즐(21)에 체결되어 결합되는 것을 특징으로 한다.The multi-stage mud gun nozzle tip of the present invention has a tip surface 25 that is accurately joined to the tap-out surface 11, and the threaded portions 34 and 35 for engaging and fastening with other tips or mud gun nozzles 21 of the same type. And a cylindrical nozzle tip 31 having a wrench groove 37 for separation therein, which is integrated therein, and a mud material discharge port 27 which is a moving passage of the mud material 28 discharged therein. 32, 33 are made of a plurality of fastening, the last nozzle tip 33 is characterized in that is coupled to the mud gun nozzle 21 is coupled.

Description

다단 머드건 노즐팁{Multistage mudgun nozzle tip}Multistage mudgun nozzle tip

본 발명은 고로 출선구를 폐쇄하는 설비인 머드건의 노즐팁에 관한 것으로서, 더욱 상세하게는 노즐팁이 용손되거나 마모되었을 경우 새로운 노즐팁으로의 교환이 용이하여 출선구를 효율적으로 폐쇄할 수 있는 다단 머드건 노즐팁에 관한 것이다.The present invention relates to a nozzle tip of the mud gun, which is a facility for closing the blast furnace outlet, and more particularly, when the nozzle tip is melted or worn out, it is easy to replace with a new nozzle tip, which can be effectively closed in multiple stages. Mudgun nozzle tip.

일반적으로, 고로(blast furnace)는 상부로부터 철광석과 코크스를 장입받아 하부에 설치된 풍구를 통해 유입되는 고온의 열풍으로 환원, 용융반응을 일으켜 용선 및 슬래그를 생산한다.In general, a blast furnace receives iron ore and coke from the upper side and generates molten iron and slag by reducing and melting the hot hot air flowing through a tuyere installed in the lower side.

이렇게 생성된 용용물은 하부의 노상에 설치된 고로 출선구(10)를 통해 노외로 배출되며, 배출이 완료되는 시점에서 출선구(10)는 머드건(20)에 의해 폐쇄된다.The molten material thus produced is discharged out of the furnace through the blast furnace outlet 10 installed on the lower furnace, and the outlet 10 is closed by the mud gun 20 when the discharge is completed.

도 1 내지 도 3을 참조하면, 머드건(20)은 고온의 용융물이 배출되는 출선구(10)를 폐쇄하기 위해 대탕도(17) 위를 선회하여 출선구면(17)과 일직선상을전진하여 출선구면(17)과 접합되며, 그 후 자체 충진하고 있는 머드재(28)를 피스톤(29)으로 밀어 출선구(10)를 폐쇄하게 된다.1 to 3, the mud gun 20 is rotated over the large hot water 17 in order to close the exit port 10, the hot melt discharged to advance in a straight line with the exit port 17 It is joined to the starting port surface 17, and then pushes the mud material 28, which is self-filled by the piston 29 to close the exit port 10.

따라서, 출선구(10) 폐쇄시마다 머드건(20)은 고열의 대탕도(17) 위를 선회하게 되어 엄청난 고열에 노출되며, 머드건(20)의 선단인 노즐팁(22)은 출선구(10)에서 분출되는 용융물과 부딪치며 돌진하여 출선구면(11)과 접함됨에 따라 자주 용선되게 된다.Therefore, each time the muzzle gun 20 is turned over the hot water 17, the mud gun 20 is exposed to enormous high heat, and the nozzle tip 22, which is the tip of the mud gun 20, is turned off (the muzzle gun 20). As it collides with the melt ejected from 10) and rushes, the molten metal is frequently molten as it comes into contact with the exit port 11.

따라서, 노즐팁(22)의 용손된 부분에서 머드재(28)의 유출이 발생되며, 용손이 클 경우 출선구(10) 폐쇄 실패가 야기된다.Therefore, the outflow of the mud material 28 occurs in the molten portion of the nozzle tip 22, the failure of closing the outlet 10 is caused when the molten iron is large.

이와 같이, 머드재(28) 유출이나 출선구(10) 폐쇄 실패의 경우에는 출선구면(11)이 탈락되며, 따라서 머드건(20)을 선회하여 후퇴시키고 출선구면(11)을 재생성해야 한다.As such, when the mud material 28 leaks or fails to close the tap opening 10, the tap opening 11 is dropped, and therefore, the mud gun 20 is retracted to retreat and the tap opening 11 must be regenerated.

또한, 용손된 노즐팁(22)을 교환하여야 하는데, 노즐팁(22)의 팁 고정핀(26)이 팁 고정핀 구멍(26a)과 노즐선단(23)의 고정핀 홈(26b)에서 열화 및 용손 고착으로 빠지지 않아 그 분리에 과다한 시간과 노력이 소요되며, 이에 따라 작업자가 고열에 화상을 입기도 하고, 그 사이에 출선구(10)로부터 고열의 용융물이 비산되고 많은 분진이 방출되어 환경오염이 유발된다.In addition, the damaged nozzle tip 22 needs to be replaced, and the tip fixing pin 26 of the nozzle tip 22 deteriorates in the tip fixing pin hole 26a and the fixing pin groove 26b of the nozzle tip 23. Excessive time and effort is required for separation because it does not fall out due to the fixing of the melted hand, and thus the worker may be burned at high temperature, and high-temperature melt is scattered from the exit port 10 and a lot of dust is released. This is caused.

나아가, 머드건(20)이 출선구(10)를 폐쇄할 때마다 출선구면(11)이 2∼3㎜씩 계속해서 돌출되는데, 장기간 출선구(10) 사용시 상당히 돌출되게 되어 그 면강도가 기존의 성형재(12)의 면강도가 비해 상당히 약해진다.Furthermore, whenever the mud gun 20 closes the tap opening 10, the tap opening surface 11 continuously protrudes by 2 to 3 mm, and the face strength is protruded considerably when using the tap opening 10 for a long time. Significantly weaker than the surface strength of the molding material 12.

따라서, 출선구(10) 개공시 개공기 해머 충격과 폐쇄시의 머드건(20)의 충격에 의해 출선구면(11)상에 균열(82) 및 면탈락(83)이 발생하여, 머드재(28) 유출 및 출선구(10) 폐쇄 실패를 야기하게 되므로 그 사전조치가 필요된다.Accordingly, cracks 82 and surface droppings 83 are generated on the exit port 11 by the impact of the opening machine hammer at the opening of the exit opening 10 and the impact of the mud gun 20 at the closing, and the mud material ( 28) Precautions are necessary as this will cause spillage and failure to close the exit 10.

이와 관련하여, 도 4에 나타낸 바와 같은 목팁(40)이라는 것을 머드건 노즐팁(22)의 머드재 토출구(27)에 삽입하여 노즐팁(22) 앞에 부드러운 면을 하나 더 형성하여, 출선구면(11)과 노즐팁면(25) 사이에서 완충과 불량 면부를 메꾸는 역할을 하도록 하는 방법이 있으나 머드건(20)이 출선구(10)로 돌진시 출선구(10)에서 분출되는 용융물에 의해 삽입되었던 목팁(40)이 휩쓸려 빠져 나가버려 결국 머드재 유출 및 출선구 폐쇄 실패로 이어진다.In this regard, the neck tip 40 as shown in FIG. 4 is inserted into the mud material discharge port 27 of the mud gun nozzle tip 22 to form one more smooth surface in front of the nozzle tip 22, and the exit port surface ( 11) and the nozzle tip surface 25 to fill the buffer and the defective surface portion but there is a mud gun 20 is inserted by the melt ejected from the outlet port 10 when rushing to the outlet port 10. The neck tip 40 was swept away, leading to mud ash leakage and failure to close the outlet.

본 발명은 상기와 같은 제반 문제점을 해결하기 위하여 창안된 것으로서, 머드건 노즐팁을 다단팁식으로 하여 앞쪽의 노즐팁이 용손되거나 마모되는 경우 그 다음단의 노즐팁으로 용이하게 교환 가능한 다단 머드건 노즐팁을 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, the mud gun nozzle tip is a multi-stage tip type, if the front nozzle tip is damaged or worn, multi-stage mud gun nozzle can be easily replaced with the nozzle tip of the next stage The purpose is to provide tips.

또한, 본 발명은 출선구면이 탈락되는 경우 이를 재생하기 위한 개량된 출선구면 생성장치를 구비하는 다단 머드건 노즐팁을 제공하는데 목적이 있다.It is also an object of the present invention to provide a multi-stage mud gun nozzle tip having an improved outgoing spherical surface generating device for regenerating the outgoing spout.

본 발명의 다른 목적 및 장점들은 하기에 설명될 것이며, 본 발명의 실시에 의해 알게 될 것이다. 또한, 본 발명의 목적 및 장점들은 첨부된 특허청구범위에 나타낸 수단 및 조합에 의해 실현될 수 있다.Other objects and advantages of the invention will be described below and will be appreciated by the practice of the invention. Furthermore, the objects and advantages of the present invention can be realized by means and combinations indicated in the appended claims.

도 1은 종래의 머드건을 이용하여 출선구를 폐쇄하는 상황을 보여주는 도면.1 is a view showing a situation of closing the exit using a conventional mud gun.

도 2는 종래의 머드건 노즐과 노즐팁의 분해 사시도.Figure 2 is an exploded perspective view of a conventional mud gun nozzle and nozzle tip.

도 3은 정상적인 출선구면(a)과, 균열 및 면탈락된 출선구면(b)을 도시한 도면.3 shows a normal starting spout surface a and cracked and out-of-plane spout surface b;

도 4는 불량 출선구면의 보수를 위해 사용되는 목틱을 보여주는 도면.4 is a view showing a mock tick used for the repair of a bad starting surface.

도 5는 본 발명에 따른 다단 머드건 노즐팁의 체결 사시도(a), 분해 사시도(b) 및 분해 단면도(c).Figure 5 is a fastening perspective view (a), exploded perspective view (b) and exploded cross-sectional view (c) of the multi-stage mud gun nozzle tip according to the present invention.

도 6은 본 발명에 따른 출선구면 생성장치를 보여주는 분해도(a) 및 그것이 사용되는 상황을 보여주는 도면(b).6 is an exploded view (a) showing a starting spherical surface generating apparatus according to the present invention and a view showing a situation in which it is used (b).

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

10 : 출선구(tap hole) 11 : 출선구면10: tap hole 11: tap hole

12 : 스탬프(stamp)재 13 : 유입재12: stamp material 13: inflow material

14 : 익스텐션(extension) 20 : 머드건(mud gun)14: extension 20: mud gun

21 : 머드건 노즐(nozzle) 22 : 머드건 노즐팁(nozzle tip)21: Mud gun nozzle 22: Mud gun nozzle tip

25 : 팁면 28 : 머드재25: tip surface 28: mud material

30 : 다단 노즐팁 31 : 제 1 노즐팁30: multi-stage nozzle tip 31: first nozzle tip

32 : 제 2 노즐팁 33 : 제 3 노즐팁32: second nozzle tip 33: third nozzle tip

40 : 목팁 50 : 출선구면 생성장치40: neck tip 50: starting surface creation device

53 : 스탬프재 삽입구 54 : 스탬프재53: stamping material insertion hole 54: stamping material

80 : 돌출 출선구면 81 : 출선구 지금 부착부80: protrusion exit surface 81: exit opening now

83 : 출선구면 탈락부83: dropout section

상기와 같은 목적을 달성하기 위한 본 발명의 다단 머드건 노즐팁은, 출선구면(11)과 정확하게 접합되는 팁면(25)을 가지고, 동일 형태의 다른 팁이나 머드건 노즐(21)과의 결합 체결을 위한 나사부(34, 35)를 구비하며, 그 외부에는 분리를 위한 렌치홈(37)이 일체화되어 있고, 내부에는 토출되는 머드재(28)의 이동 통로인 머드재 토출구(27)가 형성되어 있는 원통형의 노즐팁(31, 32, 33)이 다수개 체결되어 이루어지며, 최후단의 노즐팁(33)은 상기 머드건 노즐(21)에 체결되어 결합되는 것을 특징으로 한다.The multi-stage mud gun nozzle tip of the present invention for achieving the above object, has a tip surface 25 that is accurately bonded to the outlet port surface 11, the coupling and fastening with another tip or mud gun nozzle 21 of the same form Screw parts 34 and 35 are provided, and a wrench groove 37 for separation is integrated therein, and a mud material discharge port 27, which is a moving passage of the mud material 28 discharged, is formed therein. A plurality of cylindrical nozzle tips 31, 32, 33 are fastened to each other, and the last nozzle tip 33 is fastened to the mud gun nozzle 21.

바람직하게, 상기 다단 머드건 노즐팁에는, 스탬프재(54)를 감싸고 있다가 출선구 폐쇄시 몸체(50) 외부상에서 후방으로 밀리는 캡(51)과 상기 몸체(50) 내부에 구비된 나사부(52)를 포함하는 출선구면 생성장치(50)가 부착되어 함께 사용될 수 있다.Preferably, the multi-stage mud gun nozzle tip wraps the stamp material 54 and is pushed backward from the outside of the body 50 when the exit port is closed, and a threaded portion 52 provided in the body 50. A starting spherical surface generating device 50 including a) may be attached and used together.

이하, 첨부된 도면을 참조로 본 발명을 상세히 설명하기로 한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 5는 본 발명에 따른 다단 머드건 노즐팁의 체결 사시도(a), 분해 사시도(b) 및 분해 단면도(c)를 나타낸다.Figure 5 shows a fastening perspective view (a), an exploded perspective view (b) and an exploded cross-sectional view (c) of the multi-stage mud gun nozzle tip according to the present invention.

도면을 참조하면, 다단 노즐팁(30)은 동일한 다수개의 노즐팁(31, 32, 33)이 상호 나사(34, 35)로서 체결되어 구성되며, 최후단의 노즐팁(33)을 통해 머드건 노즐선단(23)에 나사(35, 36)로서 체결된다.Referring to the drawings, the multi-stage nozzle tip 30 is configured by fastening the same plurality of nozzle tips 31, 32, 33 as mutual screws 34 and 35, and the mud gun through the last nozzle tip 33. It is fastened to the nozzle tip 23 as screws 35 and 36.

각 노즐팁(31, 32, 33)은 출선구면(11)과 동일한 동심원으로 된 세개의 면(25)을 가지며, 그 내부에 토출되는 머드재(28)의 이동통로인 머드재 토출구(27)를 구비하는 원통으로, 다른 팁이나 후술하는 출선구면 생성장치(50)와의 체결을 위한 나사부(34, 35)를 포함하며, 외부에 그 분리를 위한 렌치홈(37)이 일체화되어있다.Each nozzle tip 31, 32, 33 has three faces 25 of the same concentric circle as the outlet opening 11, and the mud material outlet 27 which is a moving passage of the mud material 28 discharged therein. It is a cylindrical having a, including a screw portion (34, 35) for fastening with the other tip or the outlet spherical surface generating device 50 to be described later, the wrench groove 37 for the separation is integral to the outside.

이와 같은 구성의 다단노즐팁(30)은 다음과 같이 사용된다.The multi-stage nozzle tip 30 of such a configuration is used as follows.

출선구(10) 폐쇄시 제일 선단의 노즐팁(31) 면(27)이 출선구(10)에서 분출되는 용선에 의해 용손되거나 장기간 사용으로 마모되면, 분해 렌치(38)를 선단 노즐팁(31)의 렌치홈(37)과 다음단의 노즐팁(32)의 렌치홈(37)에 삽입하여 서로 다른 방향으로 돌려 선단 노즐팁(31)을 분리해 내고 다음단의 노즐팁(32)을 선단으로 나오게 하여 사용하게 된다.When the nozzle tip 31 surface 27 at the leading end is damaged by the molten iron ejected from the outlet 10 or worn out for a long time, the disassembling wrench 38 is attached to the tip nozzle tip 31. Insert into the wrench groove 37 of the next step and the wrench groove 37 of the nozzle tip 32 of the next stage and turn in different directions to separate the tip nozzle tip 31 and the nozzle tip 32 of the next stage to the tip. It will be used to come out.

그리고, 출선구 폐쇄 실패에 따라 선단 노즐팁(31)과 그 다음단의 노즐팁(32)까지 크게 용손된 경우에는 긴급히 머드건(20)을 선회 후퇴시키고 분해 렌치(38)를 사용하여 용손된 팁들(31, 32)을 전부 분리해 내고 다다음단의 노즐팁(33)을 나오게 하여 사용하게 된다.And, if the tip nozzle tip 31 and the nozzle tip 32 of the next stage is largely melted due to the failure to close the outlet, urgently retracting the mud gun 20 and using the disassembly wrench 38 to damage it. All the tips 31 and 32 are separated and the nozzle tip 33 comes out of the next stage to be used.

나아가, 출선구(10) 폐쇄 실패에 따라, 출선구면(11)이 손상된 경우에는 도 6 (a)에 도시된 바와 같이 출선구면 생성장치(50)를 선단 노즐팁(31)의 숫나사부(34)에 체결하여, 출선구면 생성장치 캡(51)을 출선구면 생성장치 몸통(50)에 대해 앞으로 밀어 부정형 내화물을 약간의 물과 반죽하여 출선구면 생성장치 캡(51)의 안쪽에 단단히 채워 머드건(20)을 출선구(10)에 대해 전진시켜 재폐쇄를 시도하면, 출선구면 생성장치(50)의 캡(51)이 돌출 출선구면(80)에 닿아 뒤로 밀리면서 출선구면(11)과 선단 노즐팁(31) 사이의 부정형 내화물(스탬프재)(24)이 출선구면(11)의 탈락된 부분(83)을 메꾸게 되어 출선구면(11)을 새롭게 재생성하게 되며(도 6 (b) 참조), 이로써 머드건(20)내의 머드재(28)가 출선구(10)로 안정적으로 밀려 들어가 출선구(10)를 폐쇄하게 된다.In addition, when the exit opening 11 is damaged due to the failure of the exit opening 10, as shown in FIG. 6 (a), the exit opening surface generating apparatus 50 is male threaded portion 34 of the tip nozzle tip 31. FIG. ), The tapping spherical generator cap 51 is pushed forward against the tapping sputter body 50 to knead the irregular refractory with a little water to securely fill the inside of the tapping sputter cap 51 with the mud gun. When 20 is attempted to reclose by moving forward with respect to the tap opening 10, the cap 51 of the tap opening surface generating apparatus 50 touches the protruding tap opening surface 80 and is pushed backward, leading to the tap opening surface 11 and the tip. The irregular refractory (stamp material) 24 between the nozzle tips 31 fills in the missing portion 83 of the tap opening 11 so that the tap opening 11 is newly regenerated (see FIG. 6 (b)). In this way, the mud material 28 in the mud gun 20 is pushed stably into the tap opening 10 to close the tap opening 10.

이상과 같이, 본 발명은 비록 한정된 실시예와 도면에 의해 설명되었으나, 본 발명은 이것에 의해 한정되지 않으며 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능함은 물론이다.As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

본 발명의 다단 머드건 노즐팁에 따르면, 머드건 노즐팁을 다단 노즐팁으로 구성하여 선단의 노즐팁면이 출선구 폐쇄중 용손되거나 마모되면 신속하게 다음단의 노즐팁으로 교체하고, 출선중 출선구면이 탈락, 붕괴되거나 1차 출선구 폐쇄 실패한 경우 출선구면 생성장치를 그 선단에 체결하여 안정적으로 출선구면을 재생성하고 출선구 폐쇄를 할 수 있어, 종래 노즐팁 교체에 소요되었던 시간과 노력의 절감에 따른 조업 안정화를 꾀할 수 있으며, 작업자 화상 위험과 분출되는 분진에 의한 환경오염을 예방할 수 있는 효과가 있다.According to the multi-stage mud gun nozzle tip of the present invention, the mud gun nozzle tip is composed of a multi-stage nozzle tip, if the nozzle tip surface of the tip is damaged or worn during the closing of the exit port, the nozzle tip of the next step is quickly replaced with the nozzle tip of the exit step If the dropout, collapse, or failure to close the primary exit port, the exit exit generation device can be fastened to the distal end, thereby stably regenerating the exit exit port and closing the exit port, thus reducing the time and effort required to replace the nozzle tip. The operation can be stabilized, and there is an effect of preventing the risk of worker burn and environmental pollution caused by the dust emitted.

Claims (2)

출선구면(11)과 정확하게 접합되는 팁면(25)을 가지고, 동일 형태의 다른 팁이나 머드건 노즐(21)과의 결합 체결을 위한 나사부(34, 35)를 구비하며, 그 외부에는 분리를 위한 렌치홈(37)이 일체화되어 있고, 내부에는 토출되는 머드재(28)의 이동 통로인 머드재 토출구(27)가 형성되어 있는 원통형의 노즐팁(31, 32, 33)이 다수개 체결되어 이루어지며,It has a tip surface 25 that is accurately bonded to the outlet port 11, and has a threaded portion (34, 35) for coupling to the other tip or mud gun nozzle 21 of the same shape, the outside for separation The wrench grooves 37 are integrated, and a plurality of cylindrical nozzle tips 31, 32, 33 are formed in which a mud material discharge port 27 is formed, which is a moving passage of the mud material 28 discharged therein. Lose, 최후단의 노즐팁(33)은 상기 머드건 노즐(21)에 체결되어 결합되는 것을 특징으로 하는 다단 머드건 노즐팁.The last nozzle tip 33 is a multi-stage mud gun nozzle tip, characterized in that coupled to the mud gun nozzle 21 is coupled. 제 1항에 있어서,The method of claim 1, 상기 다단 머드건 노즐팁에는, 스탬프재(54)를 감싸고 있다가 출선구 폐쇄시 몸체(50) 외부상에서 후방으로 밀리는 캡(51)과 상기 몸체(50) 내부에 구비된 나사부(52)를 포함하는 출선구면 생성장치(50)가 부착되어 함께 사용되는 것을 특징으로 하는 다단 머드건 노즐팁.The multi-stage mud gun nozzle tip includes a cap 51 enclosing the stamp material 54 and being pushed backward from the outside of the body 50 when the outlet is closed and a screw portion 52 provided inside the body 50. Multi-stage mud gun nozzle tip, characterized in that used in conjunction with the exit spherical surface generating device (50).
KR1020010083632A 2001-12-22 2001-12-22 Multistage Mud Gun Nozzle Tip Expired - Fee Related KR100838837B1 (en)

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KR100896605B1 (en) * 2002-10-01 2009-05-08 주식회사 포스코 Emergency closing device for the exit of the furnace

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JPS6311548A (en) * 1986-07-02 1988-01-19 Ohara Inc Production of glass having refractive index distribution
KR920007173Y1 (en) * 1990-12-27 1992-10-08 포항종합제철 주식회사 Apparatus for coupling of mud gun nozzle tip
KR950009584Y1 (en) * 1993-07-27 1995-11-08 포항종합제철 주식회사 Composite Vibration Steel Sheet Manufacturing Equipment
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