KR20000039995A - Device for protecting alloy iron swivel chute - Google Patents

Device for protecting alloy iron swivel chute Download PDF

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Publication number
KR20000039995A
KR20000039995A KR1019980055514A KR19980055514A KR20000039995A KR 20000039995 A KR20000039995 A KR 20000039995A KR 1019980055514 A KR1019980055514 A KR 1019980055514A KR 19980055514 A KR19980055514 A KR 19980055514A KR 20000039995 A KR20000039995 A KR 20000039995A
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KR
South Korea
Prior art keywords
swivel chute
alloy iron
motor
chute
swivel
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KR1019980055514A
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Korean (ko)
Inventor
김해원
Original Assignee
이구택
포항종합제철 주식회사
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Priority to KR1019980055514A priority Critical patent/KR20000039995A/en
Publication of KR20000039995A publication Critical patent/KR20000039995A/en

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material

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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)
  • Furnace Charging Or Discharging (AREA)

Abstract

PURPOSE: A protecting device of an alloy iron swivel chute is provided to prevent crack and deposition of base metal generating on a swivel chute for inputting alloy iron to a steel receiving ladle during standby and to block up doping of cooled air in atmosphere to molten metal in a steel receiving ladle by injecting heating inactive gas to a swivel chute in inputting alloy iron. CONSTITUTION: A steel output is started by turning a swivel chute(11) to a allow iron input position. A motor(67) is operated at first to open gates(68,69). Another motor is operated to turn the swivel chute to the alloy iron input position and to unwind heating gas hoses(50-2,51-2) of a winding roll(52). Sensing of a proximate switch by a touch bar causes stoppage of the motor(55) and operation of the other motor(67). Herein, the gates are closed. If the swivel chute is turned to the alloy iron input position, an automatic valve(56) is opened to supply heating gas to the swivel chute. The alloy iron in a storage hopper is input to a steel receiving ladle with the heating gas. Thereby, doping of cooled air in atmosphere to the steel receiving ladle is prevented.

Description

합금철 스위블슈트의 보호장치Protective device of ferroalloy swivel suit

본 발명은 합금철 스위블슈트(Swivel Chute)의 보호장치에 관한 것으로, 특히 전로의 출강중 수강래들에 합금철투입시 사용되는 합금철투입용 스위블슈트에 작업대기중 발생되는 지금누적 및 크랙을 방지하기 위한 합금철 스위블슈트(Swivel Chute)의 보호장치에 관한 것이다.The present invention relates to a protection device of the ferroalloy swivel chute (Swivel Chute), in particular, the present cumulative and cracks generated during the work waiting in the swivel chute for alloy ferroalloy used in the steel ladle during the tapping of the converter It relates to a protective device of ferroalloy swivel chute (Swivel Chute) to prevent.

일반적으로, 전로의 출강구를 통한 출강작업중 수강래들에는 스위블슈트를 통해 합금철이 투입된다.In general, the steel ladle during the tapping operation through the tapping hole of the converter is fed with ferroalloy through the swivel chute.

이때, 도1에 도시한 바와같이 스위블슈트(11)는 합금철투입시 모터(7)의 구동에 따라 그 하단출구가 수강래들(1)을 향하도록 선회되고, 합금철투입이 완료되면 다시 모터(7)의 구동에 의해 대기상태로 선회시키게 된다.At this time, as shown in FIG. 1, the swivel chute 11 is pivoted so that the lower end exits toward the steel ladle 1 according to the driving of the motor 7 when the alloy is introduced. The motor 7 is rotated to the standby state.

그러나, 스위블슈트(11)에는 그 상부측에 전로(4)의 취련작업 또는 출강작업시 발생되는 비산물이 낙하되면서 지금(19)으로 누적되거나 추돌되면서 크랙(20)을 발생시키게 된다.However, in the swivel chute 11, as the fall products generated during the drilling or tapping operation of the converter 4 on its upper side are accumulated or collided with the current 19 to generate a crack 20.

이러한 스위블슈트(11)의 지금(19)누적과 크랙(20)은 스위블슈트의 변형을 초래하여 스위블슈트를 통한 합금철투입이 수강래들(1)의 적정위치에 이루어지지 못하게 되고, 이로써 합금철의 실수율저하를 초래하게 된다.The cumulative and crack 20 of the swivel chute 11 and the crack 20 cause deformation of the swivel chute so that the ferroalloy through the swivel chute cannot be made at the proper position of the steel ladle 1, thereby the alloy. It will lead to a decrease in the iron error rate.

또한, 장시간 대기상태로 냉각된 스위블슈트(11)를 통해 합금철이 수강래들(1)로 투입될 경우 대기중의 공기가 합금철과 함께 수강래들의 용강중에 혼입되어 용강의 품질을 저하시킬뿐만아니라 용강온도를 급격히 떨어뜨리는 문제를 유발시키게 된다.In addition, when the ferroalloy is introduced into the steel ladle 1 through the swivel chute 11 cooled in the atmospheric state for a long time, the air in the atmosphere is mixed into the molten steel of the steel ladle together with the alloy iron to deteriorate the quality of the molten steel. Rather, it causes a problem of sharply lowering the molten steel temperature.

본 발명은 전로의 출강중 수강래들에 합금철투입시 사용되는 합금철투입용 스위블슈트에 작업대기중 발생되는 지금누적 및 크랙을 방지함은 물론 합금철투입시 스위블슈트에 히팅불활성가스를 주입함으로써 수강래들의 용강에 대기의 냉각공기 혼입을 차단하는 합금철 스위블슈트(Swivel Chute)의 보호장치를 제공함에 그 목적이 있다.The present invention prevents current accumulation and cracks generated during the operation of the alloy swivel chute used for the alloy steel input into the steel ladle during the tapping of the converter as well as inject heating inert gas into the swivel chute during the alloy steel input The purpose of the present invention is to provide a protection device of the ferroalloy Swivel Chute, which blocks the mixing of atmospheric cooling air into the molten steel of the ladle.

도1은 종래의 합금철 스위블슈트가 장착된 전로설비를 나타내는 개략도,1 is a schematic view showing a converter facility equipped with a conventional ferroalloy swivel chute;

도2는 본 발명에 따른 합금철 스위블슈트 보호장치를 나타내는 사시도,Figure 2 is a perspective view showing a ferroalloy swivel chute protection device according to the present invention,

도3은 본 발명에 따른 합금철 스위블슈트 보호장치의 작동상태를 나타내는 작업상태도이다.Figure 3 is a working state diagram showing the operating state of the ferroalloy swivel chute protection device according to the present invention.

도면의 주요부분에 대한 부호의 설명Explanation of symbols for main parts of the drawings

1: 수강래들 3: 피더 4: 전로 5: 출강구 6: 수강대차 7: 모터 8: 모음관 9: 투입슈트 10: 종동기어 11: 스위블슈트 12: 구동기어 13,14: 베어링 15: 체인 16: 합금철저장호퍼 18: 레일 19: 지금 20: 크랙 21: 게이트부DESCRIPTION OF SYMBOLS 1 Hand ladle 3: Feeder 4: Converter 5: Outlet 6: Hand cart 7: Motor 8: Collector 9: Input chute 10: Driven gear 11: Swivel chute 12: Drive gear 13, 14: Bearing 15: Chain 16: Ferrous alloy storage hopper 18: Rail 19: Now 20: Crack 21: Gate part

상기한 목적을 달성하기 위하여 본 발명은 작업대기상태로 선회한 스위블슈트를 내장하도록 설치되는 보호케이스와; 상기 스위블슈트의 인입출을 위해 개방된 상기 보호케이스의 전방측에 샤프트가 회전 가능하도록 결합되고, 상기 샤프트에 게이트가 부착되며, 상기 샤프트의 풀리가 서로 반대방향으로 회전되도록 벨트 연결되고, 상기 샤프트의 기어가 모터의 기어와 치결합되는 게이트부로 구성되는 것을 특징으로 하는 합금철 스위블슈트의 보호장치를 제공한다.In order to achieve the above object, the present invention is a protective case which is installed to embed the swivel chute swiveled in the working standby state; The shaft is rotatably coupled to the front side of the protective case opened for the withdrawal of the swivel chute, the gate is attached to the shaft, the belt pulley of the shaft is rotated in opposite directions to each other, the shaft It provides a protective device of ferroalloy swivel chute, characterized in that the gear of the gear portion is coupled to the gear of the motor.

도면을 참조하여 본 발명의 구성을 설명한다.The configuration of the present invention will be described with reference to the drawings.

도2는 본 발명에 따른 합금철 스위블슈트 보호장치를 나타내는 사시도이고, 도3은 본 발명에 따른 합금철 스위블슈트 보호장치의 작동상태를 나타내는 작업상태도이다.Figure 2 is a perspective view showing a ferroalloy swivel chute protection device according to the present invention, Figure 3 is a working state diagram showing the operating state of the ferroalloy swivel chute protection device according to the present invention.

작업대기상태의 스위블슈트(11)를 내장하도록 설치되는 보호케이스(57-1)는 스위블슈트가 입인출되도록 개방된 그 전방측에 구동샤프트(60,61)가 베어링(58)에 의해 회전가능하도록 설치되어 있다.The protective case 57-1, which is installed to incorporate the swivel chute 11 in the working standby state, has a drive shaft 60 and 61 rotatable by the bearing 58 on its front side which is open to draw in and out of the swivel chute. It is installed to

이때, 구동샤프트(60,61)에는 각각 게이트(69,68)가 고정 부착되어 있고, 특히 구동샤프트(60)의 일단에는 종동풀리(62)가 체결되며, 구동샤프트(61)의 일단에는 구동풀리(63)와 종동기어(65)가 차례로 체결되어 있다.At this time, the gates 69 and 68 are fixedly attached to the drive shafts 60 and 61, and in particular, the driven pulley 62 is fastened to one end of the drive shaft 60, and to one end of the drive shaft 61. The pulley 63 and the driven gear 65 are fastened in sequence.

여기서, 종동풀리(62)와 구동풀리(63)에는 벨트(64)가 엇갈리게 연결되어 있어 서로 반대방향으로 회전하게 되고, 종동기어(65)에는 모터(67)의 구동기어(66)가 치결합되어 있다.Here, the driven pulley 62 and the drive pulley 63 are alternately connected to the belt 64 so as to rotate in opposite directions, and the drive gear 66 of the motor 67 is tooth-coupled to the driven gear 65. It is.

그리고, 보호케이스(57-1)의 후방측면 중앙에는 롤케이스(57-2)가 형성되어 있고, 이 롤케이스(57-2)에는 감기롤(52)이 베어링(53,54)에 의해 회전되도록 내장되어 있다.A roll case 57-2 is formed at the center of the rear side of the protective case 57-1, and the roll roll 57 is rotated by the bearings 53 and 54 in the roll case 57-2. It is built in.

이때, 롤케이스(57-2)의 양측면을 관통하는 감기롤(52)은 그 우측단에 모터(55)의 동력축이 결합되어 있고, 그 좌측단에 자동변(56)에 의해 개폐되는 히팅가스공급관(56-1)이 연결되어 있다.At this time, the winding roll 52 penetrating both sides of the roll case (57-2) is coupled to the power shaft of the motor 55 to the right end thereof, the heating is opened and closed by the automatic side 56 at the left end thereof The gas supply pipe 56-1 is connected.

여기서, 히팅가스공급관(56-1)으로부터 공급되는 히팅가스를 내장하는 감기롤(52)에는 그 외주면에 히팅가스공급호스(50-2,51-2)의 내측단이 관통 고정되어 있고, 감기롤(52)에 감기는 히팅가스공급호스에는 그 외측단에 각각 연결관(50-1,51-1)이 결합되어 있다.Here, an inner end of the heating gas supply hoses 50-2 and 51-2 is fixed to the winding roll 52 having the heating gas supplied from the heating gas supply pipe 56-1 on the outer circumferential surface thereof. The connecting pipes 50-1 and 51-1 are coupled to the heating gas supply hoses wound on the rolls 52, respectively.

또한, 연결관(50-1,51-1)은 스위블슈트(11)의 외주면 일측에 나란히 관통 결합되어 있다.In addition, the connecting pipes 50-1 and 51-1 are side-by-side coupled to one side of the outer circumferential surface of the swivel chute 11.

한편, 모음관(8)의 상단에는 터치바(74)가 고정 부착되어 있고, 이 터치바(74)는 모터(7)에 의한 스위블슈트(11)의 선회시 근접스위치(72,73)에 감지되고, 이에 따라 모터(7)의 작동이 정지된다.On the other hand, a touch bar 74 is fixedly attached to the upper end of the collection tube 8, and the touch bar 74 is attached to the proximity switches 72 and 73 when the swivel chute 11 is rotated by the motor 7. Is detected, and thus the operation of the motor 7 is stopped.

이하, 본 발명의 작용을 설명한다.The operation of the present invention will be described below.

먼저, 합금철투입작업이 완료되면 모터(67)를 작동시켜 치결합된 기어(66,65)를 회전시키게 되고, 이에 따라 벨트풀리(63,62)가 서로 반대방향으로 회전되면서 닫혀있던 게이트(68,69)를 개방시키게 된다.First, when the ferroalloy operation is completed, the motor 67 is operated to rotate the gears 66 and 65 which are coupled to each other. Accordingly, the belt pulleys 63 and 62 are rotated in opposite directions to each other to close the gate ( 68, 69) will be opened.

그리고, 선회모터(7)를 구동시키면 구동기어(12)가 회전되면서 체인(15)에 의해 종동기어(10)가 회전되고, 이에 따라 스위블슈트(11)가 선회되면서 게이트(68,69)가 열린 보호케이스(57-1)에 내장되면서 작업대기상태로 전환된다.Then, when the turning motor 7 is driven, the driven gear 10 is rotated by the chain 15 while the driving gear 12 is rotated. As a result, the swivel chute 11 is rotated, so that the gates 68 and 69 are rotated. Built into the open protective case (57-1) is switched to the work standby state.

이때, 스위블슈트(11)가 작업대기상태로 선회되는 동안 모터(55)가 작동되면서 감기롤(52)에 히팅가스호스(50-2,51-2)가 감기게 된다.At this time, the heating gas hoses 50-2 and 51-2 are wound on the winding rolls 52 while the motor 55 is operated while the swivel chute 11 is turned to the working standby state.

여기서, 터치바(74)가 근접스위치(72)에 의해 감지되면 모터(7,55)의 작동은 멈추게 되고, 동시에 모터(67)가 작동되면서 게이트(68,69)를 닫게 된다.Here, when the touch bar 74 is detected by the proximity switch 72, the operation of the motors 7 and 55 is stopped, and at the same time, the gates 68 and 69 are closed while the motor 67 is operated.

한편, 출강작업이 시작되면 스위블슈트(11)를 합금철투입위치로 전환위치로 선회시키게 되는데, 먼저 모터(67)를 동작시켜 게이트(68,69)를 개방시킨 후, 모터(7,55)를 동작시켜 스위블슈트(11)를 합금철투입위치로 선회시키는 동시에 감기롤(52)의 히팅가스호스(50-2,51-2)를 풀게 된다.On the other hand, when the tapping work is started, the swivel chute 11 is turned to the switching position into the alloy iron input position. First, the motor 67 is operated to open the gates 68 and 69, and then the motors 7 and 55 are rotated. By turning the swivel chute 11 to the alloy iron injection position and at the same time to release the heating gas hose (50-2, 51-2) of the winding roll (52).

이때, 터치바(74)가 근접스위치(73)에 의해 감지되면 모터(7,55)의 구동을 정지시키는 동시에 모터(67)를 작동시켜 게이트(68,69)를 닫게 된다.In this case, when the touch bar 74 is detected by the proximity switch 73, the driving of the motors 7 and 55 is stopped and the motor 67 is operated to close the gates 68 and 69.

여기서, 스위블슈트(11)가 합금철투입위치로 선회되면 자동밸브(56)를 개방하여 히팅가스를 스위블슈트내로 공급하게 되고, 저장호퍼(16)의 합금철은 스위블슈트를 통해 히팅가스와 함께 수강래들(1)로 투입됨으로써 대기의 냉각공기가 수강래들의 용강에 혼입되는 현상을 방지하게 된다.Here, when the swivel chute 11 is swiveled to the alloy iron input position, the automatic valve 56 is opened to supply heating gas into the swivel chute, and the ferroalloy of the storage hopper 16 is heated together with the heating gas through the swivel chute. By being injected into the ladle (1) to prevent the phenomenon that the cooling air of the atmosphere is mixed in the molten steel of the ladle.

본 발명은 지금누적 및 크랙에 의한 스위블슈트의 변형을 방지하고, 수강래들의 용강에 대기의 냉각공기혼입을 차단함으로써 용강의 품질저하를 예방하는 효과를 제공하게 된다.The present invention is to prevent the deformation of the swivel chute by cumulative accumulation and cracks, and to prevent the deterioration of the quality of the molten steel by blocking the mixing of the cooling air of the atmosphere into the molten steel.

Claims (2)

작업대기상태로 선회한 스위블슈트(11)를 내장하도록 설치되는 보호케이스(57-1)와;A protective case 57-1 installed to house the swivel chute 11 pivoted into a working standby state; 상기 스위블슈트(11)의 인입출을 위해 개방된 상기 보호케이스(57-1)의 전방측에 샤프트(60,61)가 회전 가능하도록 결합되고, 상기 샤프트(60,61)에 게이트(68,69)가 부착되며, 상기 샤프트(60,61)의 풀리(62,63)가 서로 반대방향으로 회전되도록 벨트(64) 연결되고, 상기 샤프트(61)의 기어(65)가 모터(67)의 기어(66)와 치결합되는 게이트부(21)로 구성되는 것을 특징으로 하는 합금철 스위블슈트의 보호장치.Shafts 60 and 61 are rotatably coupled to the front side of the protective case 57-1 that is open to draw in and out of the swivel chute 11, and gates 68 and 6 to the shafts 60 and 61. 69 is attached, and the pulleys 62 and 63 of the shafts 60 and 61 are connected to the belt 64 so that the gears 65 of the shaft 61 are rotated in opposite directions. Protective device for ferroalloy swivel chute, characterized in that consisting of the gate portion 21 is toothed and gear 66. 제 1 항에 있어서,The method of claim 1, 상기 보호케이스(57-1)의 후방측에 형성된 롤케이스(57-2)에 모터(55)에 의해 회전되도록 내장되면서 히팅가스공급관(56-1)과 연결되는 감기롤(52)과;A winding roll 52 embedded in the roll case 57-2 formed at the rear side of the protective case 57-1 so as to be rotated by the motor 55 and connected to the heating gas supply pipe 56-1; 그 양단이 각각 상기 감기롤(52)과 스위블슈트(11)에 관통 연결되면서 상기 감기롤(52)에 감기는 호스(50-2,51-2)로 구성되는 것을 특징으로 하는 합금철 스위블슈트의 보호장치.Both ends of the ferroalloy swivel chute, characterized in that composed of hoses 50-2 and 51-2 wound through the winding roll 52 while being connected to the winding roll 52 and the swivel chute 11, respectively. Protection device.
KR1019980055514A 1998-12-16 1998-12-16 Device for protecting alloy iron swivel chute KR20000039995A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100817147B1 (en) * 2001-10-26 2008-03-27 주식회사 포스코 Apparatus for preventing alloyed iron from lumping in a storage hopper
KR20190036276A (en) 2017-09-27 2019-04-04 주식회사 포스코 Apparatus for inserting of raw material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100817147B1 (en) * 2001-10-26 2008-03-27 주식회사 포스코 Apparatus for preventing alloyed iron from lumping in a storage hopper
KR20190036276A (en) 2017-09-27 2019-04-04 주식회사 포스코 Apparatus for inserting of raw material

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