KR200181301Y1 - Formed tip pressed by wood scrap for blast furnace - Google Patents

Formed tip pressed by wood scrap for blast furnace Download PDF

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Publication number
KR200181301Y1
KR200181301Y1 KR2019990028099U KR19990028099U KR200181301Y1 KR 200181301 Y1 KR200181301 Y1 KR 200181301Y1 KR 2019990028099 U KR2019990028099 U KR 2019990028099U KR 19990028099 U KR19990028099 U KR 19990028099U KR 200181301 Y1 KR200181301 Y1 KR 200181301Y1
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South Korea
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tip
mud
wood
blast furnace
exit
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KR2019990028099U
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Korean (ko)
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김재신
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주식회사성경
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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 고안은 고로의 출선구를 폐쇄시키는 압축 목재부재에 관한 것이다.The present invention relates to a compressed wood member for closing the outlet of the blast furnace.

즉, 공기압을 이용하여 머드사를 분사시키는 머드건의 선단부에 목재팁을 취부한 것으로 출선구면에서 목재팁이 완충작용을 하여 틈새가 없어지므로 머드사가 새어 나가지 않고 유출물을 방지하는 특징이 있다.In other words, the wood tip is attached to the tip of the mud gun that injects the mud yarn using air pressure, and the wood tip is buffered at the exit surface, so that there is no gap, the mud yarn is prevented from leaking without leaking.

Description

고로의 출선구를 폐쇄시키는 압축 목재부재{FORMED TIP PRESSED BY WOOD SCRAP FOR BLAST FURNACE}TECHNICAL TIP PRESSED BY WOOD SCRAP FOR BLAST FURNACE

본 고안은 고로의 출선구를 폐쇄시키는 압축 목재부재에 관한 것으로서, 특히 공기압을 이용하여 머드사를 분사시키는 머드건의 선단부에 목재팁을 취부한 것으로 출선접합면에서 목재팁이 완충작용을 하여 틈새가 없어지므로 머드사가 출선구접합면과 목재팁 사이로 유출되지 않는 것을 제공하는 것이다.The present invention relates to a compressed wood member that closes the exit of a blast furnace, and in particular, a wood tip is attached to the tip of a mud gun that injects a mud yarn using air pressure. The mud yarn is provided so that it does not spill between the exit junction and the wood tip.

일반적으로 고로에는 철광석 용해 작업이 진행되어 고로 바닥에 용신이 고이게 되면 4개의 출선구를 교대로 개공기로 개공하여 용선을 고로밖으로 배출시키고 고로내부 바닥의 용융물 배출이 완료되면 출선구로 부터 가스가 함유된 고온의 바람과 함께 용융물이 분출된다. 이때 다른 출선구를 개공하고 머드사를 넣어둔 머드건으로 출선구를 폐쇄하게 된다.In general, when blast furnace is dissolved in iron ore and yongsin is accumulated on the bottom of the blast furnace, four outlets are alternately opened by openers to discharge molten iron out of the blast furnace. The melt is ejected together with the hot wind. At this time, the other opening is opened and the mud gun is closed with the mud gun.

그러나 이때 출선구의 접합면과 머드건의 노즐팁 사이 밀착이 불량하여 즉 출선구 접합면을 형성하고 있는 성형재가 300kg/㎠의 고압으로 작동되는 머드건의 노즐팁과 밀착될때 충격으로 일부가 파손되거나 내화물이 산화되어 그 표면이 파손되어 머드건의 노즐팁과 출선구 접합면이 완전히 밀착되지 않아 머드건 동체 내부의 머드사를 출선구로 밀어넣을때 머드사가 출선구 내부로 밀려들어가지 않고 접합면 사이에서 밖으로 유출되는 현상이 발생하거나 출선구 폐쇄 실폐가 예상될때 출선구 접합면을 보수해야 하는 문제점이 있는 것이다.However, at this time, the adhesion between the junction surface of the outlet port and the nozzle tip of the mud gun is poor, that is, when the molding material forming the junction port is in close contact with the nozzle tip of the mud gun operated at a high pressure of 300 kg / ㎠, Is oxidized and its surface is damaged so that the nozzle tip of the mud gun and the junction surface of the mud gun do not come into close contact with each other. When the mud yarn inside the mud gun body is pushed into the exit port, the mud yarn does not get pushed into the exit port. There is a problem in that the exit junction must be repaired when a leak occurs or the closure of the exit is expected.

또한 이때 출선구 접합면을 보수할 때에도 출선구 전방에는 1520±10℃의 용융물이 항시 고여있고 CO농도 21% 이상되는 중독성가스 발생되며 150~180℃의 방산화염이 발생하는 것으로, 방열복과 방호면 두건을 착용하고 작업자가 보수를 할 때에 자칫 사고가 발생하는 경우가 비일비재 하였다.At this time, even when repairing the junction surface, the melt at 1520 ± 10 ℃ is always standing in front of the outlet and toxic gas is generated with CO concentration of 21% or more, and the flame retardant of 150 ~ 180 ℃ is generated. Accidents often occur when a worker wears a hood and repairs.

또한 작업복을 착용하고도 고열작업 장소라 최소한 3~4명이 교대로 작업을 실시하는 관계로 작업시간이 오래 소요 되어 먼저 붙여놓은 출선구 보수용 내화물이 수분 증발에 의해 접착력이 현저하게 저하되어 붕괴되어 다시 붙이는 작업을 해야하므로 내화물 손실은 물론 작업시간이 지연되고 접합면 수명도 단축되며 작업 부하도 증대되는 문제점이 있는 것이다.In addition, since it is a high-temperature work place even when wearing work clothes, at least three to four people work alternately, it takes a long time for the refurbishment to be repaired by moisture evaporation. Since the work must be attached, as well as refractory loss, there is a problem that the working time is delayed, the joint life is shortened and the workload is increased.

본 고안은 상기와 같이 내화물로 형성된 머드건의 노줄에 의해 발생되는 문제점을 해결하기 위하여 안출한 것으로서, 그 목적으로는 통상의 머드건의 노줄에 톱밥으로 압축시킨 목재팁을 취부할 수 있도록 한 것으로 출선구면에서 목재팁이 완충작용으로 충격을 완화시켜 출선구접합면과 내화물 표면이 파손되는 것을 방지하므로서, 틈새가 발생하지 않으므로 머드사의 유출을 방지하고 종래와 같이 수작업을 해소하며 출선구접하면의 수명을 연장하는 것을 제공 함에 그 목적이 있는 것이다.The present invention has been devised to solve the problems caused by the muzzle of the mud gun formed of refractory as described above, for that purpose it is possible to attach the wood tips compressed with sawdust to the mud of the normal mud gun. The wooden tip prevents the impact of the tapping joint surface and the refractory surface by cushioning the shock and prevents the leakage of mud yarns. Its purpose is to provide what it does.

도 1 - 본 고안의 요부인 목재팁의 사시도1-a perspective view of a wood tip which is a main part of the present invention

도 2 - 본 고안의 사용상태 측단면도2-side view of the state of use of the present invention

도 3 - 본 고안의 다른실시예인 목재지그의 사시도3-A perspective view of a wooden jig which is another embodiment of the present invention

도 4 - 도3의 사용상태 측단면도Figure 4-side view of the state of use of Figure 3

상기 목적을 달성하기 위한 본 고안의 목재팁 전방에는 고로의 출선구접합면과 동일한 모양을 갖는 접합면과 목재팁의 후방에는 통상의 머드건 선단부의 내경에 끼울수 있도록 하는 연결관과 상기 접합면부터 연결관에는 공기압으로 머드건에서 분사되는 머드사가 통과될 수 있도록 중공이 형성된 특징이 있는 것이다.In order to achieve the above object, the front of the wood tip of the present invention has a joint surface having the same shape as the exit face of the blast furnace and the rear side of the wood tip to be fitted to the inner diameter of the general mud gun tip and the joint surface Since the connector is characterized in that the hollow is formed so that the mud yarn injected from the mud gun through the air pressure.

이하, 본 고안을 첨부된 도면을 참고로하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 고안의 요부인 목재팁의 사시도이고 도2는 본 고안을 이용한 머드건의 작용상태 측단면도이며, 도3은 본 고안의 다른실시예인 목재지그의 사시도이고, 도4는 도3에 도시된 목제지그의 작용상태 측단면도이다.Figure 1 is a perspective view of a wood tip which is the main part of the present invention and Figure 2 is a side cross-sectional view of the working state of the mud gun using the present invention, Figure 3 is a perspective view of a wooden jig of another embodiment of the present invention, Figure 4 is shown in Figure 3 Side view of a working wooden jig.

상기 도시된 바와 같이 머드건(1)의 노즐(2) 내경에 연결관(3a)을 갖는 목재팁(3)을 연결하고 이 목재팁(3)의 중공(3b)에는 공기압에 의해 분사되는 머드사가 통과될 수 있도록 하며, 목재팁(3)전방에는 출선구접합면(4)과 동일한 구조를 갖는 접합면(3c)이 형성된 것이다.As shown in the drawing, a wood tip 3 having a connecting pipe 3a is connected to the inner diameter of the nozzle 2 of the mud gun 1, and the mud sprayed by air pressure into the hollow 3b of the wood tip 3 To allow the yarn to pass through, the front surface of the wood tip (3) is formed with a joint surface (3c) having the same structure as the outlet junction surface (4).

그리고 상기 머드건(1)의 노즐(2) 외경 전방에는 환테홈(5′)을 갖는 목재지그(5)이 끼워지도록 구성된 것이다.And the wood jig (5) having the annular groove (5 ') is fitted in the front of the outer diameter of the nozzle (2) of the mud gun (1).

도면중 미설명 부호 6은 출선구이며, 7은 고로이며, M은 머드사이다.In the figure, reference numeral 6 denotes a starting port, 7 denotes a blast furnace, and M denotes a mud yarn.

상기와 같이 구성된 본 고안의 작용은 다음과 같다.The operation of the present invention configured as described above is as follows.

먼저 통상의 방법과 같이 고로내에서 철광석 용해 작업이 진행되어 고로 바닥에 용신이 고이게 되면 4개의 출선구를 교대로 개공기로 개공하여 용선을 고로밖으로 배출시키고 고로내부 바닥의 용융물 배출이 완료되면 출선구로 부터 가스가 함유된 고온의 바람과 함께 용융물이 분출된다. 이때 다른 출선구를 개공하고 머드사를 넣어둔 머드건으로 출선구를 폐쇄하는 것에 있어서,First, melting iron ore in the blast furnace proceeds as usual, and if Yongsin is accumulated on the bottom of the blast furnace, four exits are alternately opened in the opener to discharge the molten iron out of the blast furnace. The melt is ejected from the sphere with a hot wind containing gas. In this case, in opening another exit and closing the exit with a mud gun with a mud yarn,

상기 출선구를 폐쇄하기 위하여 공기압축기(도시생략)과 연결된 머드건(1)의 노즐(2)에 목재팁(3)을 조립한 다음 목재팁(3) 전방의 접합면(3c)과 출선구접합면(6′)부착 대기한 상태에서 머드건(1)에 내장된 머드사(M)를 분사시킨다.In order to close the exit port, the wood tip 3 is assembled to the nozzle 2 of the mud gun 1 connected to the air compressor (not shown), and then the joint surface 3c and the exit port in front of the wood tip 3 are assembled. The mud yarn M incorporated in the mud gun 1 is sprayed in the state where the joining surface 6 'is attached.

머드사(M)가 목재팁(3)의 중공(3b)을 통과하여 출선구(6)을 폐쇄함과 동시에 목재팁(3)이 수축력이 좋은 압축톱밥으로 되어있어 출선구접합면(4)의 주변에 손상된 요철부위에 목재팁(3) 접합면(3c)이 밀착되는 것이다.The mud yarn (M) passes through the hollow (3b) of the wood tip (3) to close the exit port (6) and at the same time the wood tip (3) is made of compressed sawdust with good shrinkage force, the exit junction surface (4) Wood tip (3) bonding surface (3c) is in close contact with the damaged irregularities of the vicinity.

상기와 같은 목재팁(3)이 출선구접합면(4)에 머드사(M)와 같이 부착되면 머드건(1)을 목재팁(3)과 분리시키고 이후 약 20∼30분이 경과되면 고로(7)의 온도에 의해 목재팁(3)이 자동적으로 소각되는 것이다. 이때에도 머드사(M)는 출선구(6)를 폐쇄하고 있는 것이다.When the wood tip (3) as described above is attached to the exit junction surface (4) as the mud yarn (M), the mud gun (1) is separated from the wood tip (3) and after about 20-30 minutes after the blast furnace ( Wood tip (3) is incinerated automatically by the temperature of 7). At this time, the mud yarn (M) is closing the exit opening (6).

한편 본 고안의 다른 실시예인 목재지그(5)는 목재팁(3)와 같은 용도로 할용되며 그에 대한 작용은 머드건(1)의 노즐(2)외경에 목재지그(5)를 끼운 다음 출선구접합면(4)에 목재지그(5)를 부착 대기한 상태에서 공기압에 의해 머드사(M)를 분사시키면 머드사(M)가 출선구(6)를 폐쇄시키고 점차적으로 출선구접합면(4)전체에 걸쳐 고르게 분산 접착되며, 머드사(M)의 밀림현상에 의해 목재지그(5)는 후방으로 이동하면서 머드건(1)과 같이 출선구접합면(4)으로 부터 이탈되는 것이다.On the other hand the wooden jig (5) of another embodiment of the present invention is used for the same purpose as the wood tip (3) and its action is to insert the wooden jig (5) in the outer diameter of the nozzle (2) of the mud gun (1) When the mud yarn M is sprayed by air pressure in the state where the wood jig 5 is attached to the joining surface 4, the mud yarn M closes the exit opening 6 and gradually the exit junction surface 4. It is evenly distributed and bonded throughout, and the wood jig (5) is moved away from the exit junction surface (4) like the mud gun (1) by moving backwards.

이상에서 설명한 바와 같이 본 고안은 머드건의 노줄에 톱밥으로 압축시킨 목재팁을 취부할 수 있도록 한 것으로 출선구접합면에서 목재팁이 완충작용으로 충격을 완화시켜 출선구접합면과 내화물 표면이 파손되는 것을 방지하므로서, 틈새가 발생하지 않으므로 머드사가 유출되는 것을 방지하고 종래와 같이 수작업을 해소하며 출선구의 수명을 연장하는 효과가 있다.As described above, the present invention allows the wood tip compressed by sawdust to be attached to the mud gun's row. The tip is cushioned by the shock absorbing action at the exit junction to damage the exit junction and the refractory surface. By preventing the gap, the gap does not occur, so that the mud yarn is prevented from leaking, and the manual work is eliminated as in the prior art, and the life of the exit port is extended.

Claims (2)

목재팁 전방에는 고로의 출선구접합면과 동일한 모양을 갖는 접합면과In front of the wood tip and the joint surface having the same shape as the exit joint surface of the blast furnace 목재팁의 후방에는 통상의 머드건 선단부의 내경에 끼울수 있도록 하는 연결관과At the back of the wood tip is a connector to fit the inside diameter of the normal mudgun tip. 상기 접합면부터 연결관에는 공기압으로 머드건에서 분사되는 머드사가 통과될 수 있도록 중공이 형성된 것을 특징으로 하는 고로의 출선구를 폐쇄시키는 압축 목재부재.Compression wood member for closing the exit port of the blast furnace, characterized in that the hollow is formed to pass through the mud yarn injected from the mud gun to the connection pipe from the joint surface. 제1항에 있어서,The method of claim 1, 상기 머드건 선단부의 외경에 전방에는 환테홈을 갖는 목재지그 끼워지는 것을 특징으로 하는 고로의 출선구를 폐쇄시키는 압축 목재부재.Compressed wood member for closing the exit port of the blast furnace, characterized in that the front of the mud gun tip portion is fitted with a wooden jig having an annular groove in the front.
KR2019990028099U 1999-12-14 1999-12-14 Formed tip pressed by wood scrap for blast furnace KR200181301Y1 (en)

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KR2019990028099U KR200181301Y1 (en) 1999-12-14 1999-12-14 Formed tip pressed by wood scrap for blast furnace

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100419771B1 (en) * 1999-12-24 2004-02-21 주식회사 포스코 A supplementary device for closing the tap hole of the blast furnace
KR100429155B1 (en) * 1999-12-30 2004-04-28 주식회사 포스코 Apparatus for sticking refractory onto the surface of the tap hole of the blast furnace
KR20040046111A (en) * 2002-11-26 2004-06-05 주식회사 포스코 Assistant ring type means used for closing tap hole of blast furnace
KR100851874B1 (en) * 2006-12-27 2008-08-13 주식회사 포스코 Pressing-in appratus of tap hole of blast furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100419771B1 (en) * 1999-12-24 2004-02-21 주식회사 포스코 A supplementary device for closing the tap hole of the blast furnace
KR100429155B1 (en) * 1999-12-30 2004-04-28 주식회사 포스코 Apparatus for sticking refractory onto the surface of the tap hole of the blast furnace
KR20040046111A (en) * 2002-11-26 2004-06-05 주식회사 포스코 Assistant ring type means used for closing tap hole of blast furnace
KR100851874B1 (en) * 2006-12-27 2008-08-13 주식회사 포스코 Pressing-in appratus of tap hole of blast furnace

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