KR19990076422A - Roll chiller - Google Patents

Roll chiller Download PDF

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Publication number
KR19990076422A
KR19990076422A KR1019980011361A KR19980011361A KR19990076422A KR 19990076422 A KR19990076422 A KR 19990076422A KR 1019980011361 A KR1019980011361 A KR 1019980011361A KR 19980011361 A KR19980011361 A KR 19980011361A KR 19990076422 A KR19990076422 A KR 19990076422A
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KR
South Korea
Prior art keywords
cooling
roll
duct
embedded
cover
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KR1019980011361A
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Korean (ko)
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서정학
김용업
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이구택
포항종합제철 주식회사
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Priority to KR1019980011361A priority Critical patent/KR19990076422A/en
Publication of KR19990076422A publication Critical patent/KR19990076422A/en

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Abstract

본 발명은 롤 냉각장치에 관한 것으로, 특히 가열로(4)에 내장되는 이송롤(2)의 하부에 쿨링커버(11)가 지지블록(12)에 의해 지지되도록 설치되고, 가스배관(13)과 연결되면서 외주면에 가스노즐(18-1)을 형성하는 분사라인(18)이 상기 쿨링커버(11)에 내장되며, 덕트노즐(23-1)을 형성하는 쿨링덕트(23)가 상기 분사라인(18)의 상부에 위치하도록 상기 쿨링커버(11)에 내장되는 냉각부(31)와; 레버(16)에 의해 조작되는 기어박스(17)가 베이스(29)의 상면에 부착되고, 하부가 상기 기어박스(17)에 치결합되는 스크루잭(15)의 상부에 베어링블록(17)이 고정되는 승하강부(30)로 구성되는 것을 특징으로 하는 롤 냉각장치에 관한 것이다.The present invention relates to a roll cooling apparatus, and in particular, a cooling cover 11 is installed at a lower portion of the feed roll 2 embedded in the heating furnace 4 so as to be supported by the support block 12, and a gas pipe 13 is provided. The injection line 18 is formed in the cooling cover 11 is connected to the outer peripheral surface forming the gas nozzle (18-1), the cooling duct 23 forming the duct nozzle (23-1) is the injection line A cooling unit 31 embedded in the cooling cover 11 so as to be positioned above the 18; The gearbox 17 operated by the lever 16 is attached to the upper surface of the base 29, and the bearing block 17 is provided on the upper portion of the screw jack 15, the lower portion of which is engaged with the gearbox 17. It relates to a roll cooling device, characterized in that consisting of the lifting unit 30 is fixed.

Description

롤 냉각장치Roll chiller

본 발명은 롤 냉각장치에 관한 것으로, 특히 정상구동시 이송롤의 열변형을 방지하기 위하여 냉각가스에 의한 냉각분위기를 유지하고, 정전시 이송롤을 냉각분위기의 쿨링덕트에 안착시킴으로써 휨변형을 방지하는 롤 냉각장치에 관한 것이다.The present invention relates to a roll cooling device, in particular to maintain the cooling atmosphere by the cooling gas in order to prevent thermal deformation of the transfer roll during normal operation, and to prevent bending deformation by placing the transfer roll in the cooling duct of the cooling atmosphere during power failure It relates to a roll cooling apparatus.

일반적으로 냉연강판을 열처리하기 위해서 도1에 도시한 바와같이 약 1100℃의 로(4)를 냉연강판(1)이 이송롤(2)에 의해 통과하게 되고, 이송롤(2)은 모터와 연결되는 타이밍풀리(3)에 의해 구동하게 된다.Generally, in order to heat-treat the cold rolled steel sheet, as shown in FIG. 1, the cold rolled steel sheet 1 passes through the feed roll 2 at about 1100 ° C., and the feed roll 2 is connected to the motor. It is driven by the timing pulley (3).

이때, 고온의 로(4)에 내장되는 이송롤(2)은 냉각수공급라인(5-1)을 통해 공급되어 롤샤프트의 내부를 지나 냉각수배출라인(5-2)을 통해 배출되는 냉각수에 의해 냉각되어 과열상태를 방지하게 된다.At this time, the feed roll (2) embedded in the high temperature furnace (4) is supplied through the cooling water supply line (5-1) is passed through the inside of the roll shaft by the cooling water discharged through the cooling water discharge line (5-2) Cooling will prevent overheating.

그러나, 종래의 이송롤(2)은 고온상태에 그대로 노출되어 있기 때문에 6개월마다 주기적으로 교환해 주어야 하고, 정전시 롤구동모터의 정지 및 냉각수의 미공급에 의해 중앙부가 처지는 휨변형이 발생되어 교환시기가 더 짧아지게 된다.However, since the conventional transfer roll 2 is exposed to high temperature as it is, it should be replaced periodically every six months, and the bending deflection caused by the stop of the roll drive motor and the unsupply of cooling water occurs during power outage. The exchange time will be shorter.

본 발명은 정상구동시 이송롤의 열변형을 방지하기 위하여 냉각가스에 의한 냉각분위기를 유지하고, 정전시 이송롤을 냉각분위기의 쿨링덕트에 안착시킴으로써 휨변형을 방지하는 롤 냉각장치를 제공함에 그 목적이 있다.The present invention maintains the cooling atmosphere by the cooling gas to prevent thermal deformation of the transfer roll during normal operation, and provides a roll cooling apparatus for preventing bending deformation by seating the transfer roll in the cooling duct of the cooling atmosphere during power failure. There is a purpose.

도1은 종래의 롤 냉각장치가 장착된 냉연강판의 로설비를 나타내는 단면도,1 is a cross-sectional view showing a furnace facility of a cold rolled steel sheet equipped with a conventional roll cooling device;

도2는 본 발명에 따른 롤 냉각장치가 장착된 냉연강판의 로설비를 나타내는 단면도,Figure 2 is a cross-sectional view showing the furnace equipment of the cold rolled steel sheet equipped with a roll cooling apparatus according to the present invention;

도3은 도2의 X-X 단면도,3 is a cross-sectional view taken along line X-X of FIG. 2;

도4는 도2의 Y-Y 단면도,4 is a cross-sectional view taken along line Y-Y of FIG. 2;

도5은 본 발명에 따른 롤 냉각장치중 냉각부를 나타내는 사시도이다.5 is a perspective view showing a cooling unit of the roll cooling apparatus according to the present invention.

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

1: 냉연강판 2: 이송롤 3: 타이밍풀리 4: 로 5-1,5-2: 냉각수공급라인 6: 로터리조인트 7: 베어링블록 8: 스토퍼 9: 벨로즈 11: 쿨링커버 12: 지지블록 13: 가스배관 14: 지지대 15: 스크루잭 16: 수동레버 17: 기어박스 23: 쿨링덕트 29: 베이스 30: 승강부 31: 냉각부DESCRIPTION OF SYMBOLS 1: Cold rolled steel sheet 2: Feed roll 3: Timing pulley 4: Furnace 5-1, 5-2: Coolant supply line 6: Rotary joint 7: Bearing block 8: Stopper 9: Bellows 11: Cooling cover 12: Support block 13 : Gas pipe 14: Support 15: Screw jack 16: Manual lever 17: Gear box 23: Cooling duct 29: Base 30: Lifting part 31: Cooling part

상기한 목적을 달성하기 위하여 본 발명은 가열로에 내장되는 이송롤의 하부에 쿨링커버가 지지블록에 의해 지지되도록 설치되고, 가스배관과 연결되면서 외주면에 가스노즐을 형성하는 분사라인이 상기 쿨링커버에 내장되며, 덕트노즐을 형성하는 쿨링덕트가 상기 분사라인의 상부에 위치하도록 상기 쿨링커버에 내장되는 냉각부와; 레버에 의해 조작되는 기어박스가 베이스의 상면에 부착되고, 하부가 상기 기어박스에 치결합되는 스크루잭의 상부에 베어링블록이 고정되는 승하강부로 구성되는 것을 특징으로 하는 롤 냉각장치를 제공한다.In order to achieve the above object, the present invention is installed so that a cooling cover is supported by a support block at a lower portion of a transfer roll embedded in a heating furnace, and a spray line for forming a gas nozzle on an outer circumferential surface while being connected to a gas pipe is provided. A cooling unit embedded in the cooling cover so that a cooling duct forming a duct nozzle is located at an upper portion of the injection line; The gear box operated by the lever is attached to the upper surface of the base, and the lower portion provides a roll cooling device, characterized in that consisting of the lifting portion is fixed to the upper portion of the screw jack is coupled to the gear box.

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

도2는 본 발명에 따른 롤 냉각장치가 장착된 냉연강판의 로설비를 나타내는 단면도이고, 도3은 도2의 X-X 단면도이며, 도4는 도2의 Y-Y 단면도이고, 도5은 본 발명에 따른 롤 냉각장치중 냉각부를 나타내는 사시도이다.Figure 2 is a cross-sectional view showing a furnace equipment of a cold rolled steel sheet equipped with a roll cooling apparatus according to the present invention, Figure 3 is a XX cross-sectional view of Figure 2, Figure 4 is a YY cross-sectional view of Figure 2, Figure 5 according to the present invention It is a perspective view which shows a cooling part in roll cooling apparatus.

로(4)에 내장되는 이송롤(2)의 하부에는 대략자형상의 단면으로 형성된 쿨링커버(11)가 설치되어 있고, 내화물재로 제작된 쿨링커버(11)은 그 양단이 각각 내화물재의 지지블록(12)에 의해 탈착 가능하도록 지지되어 있다.The lower part of the feed roll (2) embedded in the furnace (4) is approximately The cooling cover 11 formed in the shape of a cross section is provided, and the cooling cover 11 made of the refractory material is supported so that both ends thereof can be detached by the support block 12 of the refractory material, respectively.

그리고, 쿨링커버(11)의 내측 바닥면 중앙에는 냉각가스 분사라인(18)이 이송롤(2)과 동일축방향으로 다수개의 스토퍼(19)에 의해 고정되어 있다.The cooling gas injection line 18 is fixed to the center of the inner bottom surface of the cooling cover 11 by a plurality of stoppers 19 in the same axial direction as the transfer roll 2.

이때, 냉각가스 분사라인(18)에는 외주면을 따라 다수개의 가스노즐(18-1)이 형성되어 있다.At this time, a plurality of gas nozzles 18-1 are formed along the outer circumferential surface of the cooling gas injection line 18.

여기서, 로(4)의 좌측면을 관통하는 가스배관(13)에는 로에 외장되는 좌측부에 스톱밸브(13-1), 압력조절밸브(13-2), 유량조절밸브(13-3)가 설치되어 있고, 로에 내장되는 우측단이 쿨링커버(11)의 하면을 수직 관통하여 냉각가스분사라인(18)에 연결되어 있다.Here, a stop valve 13-1, a pressure regulating valve 13-2, and a flow regulating valve 13-3 are installed in the gas pipe 13 penetrating the left side of the furnace 4 on the left side of the furnace. The right end embedded in the furnace is vertically penetrated through the lower surface of the cooling cover 11 and connected to the cooling gas injection line 18.

또한, 냉각가스분사라인(18)의 상부에 위치하도록 쿨링커버(11)에 내장되면서 대략 ∪자 단면으로 형성된 쿨링덕트(23)에는 그 상부측에 내장되는 이송롤(2)을 향해 냉각가스를 분사하도록 다수개의 덕트노즐(23-1)이 형성되어 있다.In addition, the cooling duct 23 formed in the cooling cover 11 so as to be positioned above the cooling gas injection line 18 and having a substantially U-shaped cross section has cooling gas directed toward the feed roll 2 embedded in the upper side thereof. A plurality of duct nozzles 23-1 are formed to spray.

한편, 이송롤(2)의 양단축을 각각 지지하는 베어링블록(7)과 베이스(29) 사이에 설치되는 승강부(30)는 베이스(29)의 상면에 수동레버(16)가 부착된 기어박스(17)가 고정되어 있고, 기어박스(17)의 상부에 스크루잭(15)이 상하이동되도록 치결합되어 있다.On the other hand, the lifting unit 30 is installed between the bearing block 7 and the base 29 respectively supporting both ends of the feed roll 2, the gear having the manual lever 16 is attached to the upper surface of the base 29 The box 17 is fixed, and the screw jack 15 is coupled to the upper portion of the gear box 17 so as to be moved.

이때, 스크루잭(15)의 상단에는 각각 베어링블록(7)이 고정되어 있고, 정전시 이송롤(2)이 구동되지 않게 되면 수동레버(16)를 돌려서 스크루잭(15)을 하강시킨다.At this time, the bearing block 7 is fixed to the upper end of the screw jack 15, and when the feed roll 2 is not driven during the power failure, the screw jack 15 is lowered by turning the manual lever 16.

그리고, 하강되는 스크루잭(15)에 의해 베어링블록(7)을 따라 이송롤(2)이 쿨링덕트(23)에 내장되면서 지지하던 냉연강판(1)과 떨어지게 된다.Then, the feed roll 2 along the bearing block 7 by the screw jack 15 to be lowered is separated from the cold rolled steel sheet (1) supported while being embedded in the cooling duct (23).

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

먼저, 이송롤(2)의 정상가동시 스톱밸브(13-1)를 개방하고, 로(4)의 적정한 온도조건에 맞도록 압력조절밸브(13-2)와 유량조절밸브(13-3)를 조정하여 가스배관(13)을 통해 냉각가스를 공급하게 된다.First, the stop valve 13-1 is opened during the normal operation of the feed roll 2, and the pressure regulating valve 13-2 and the flow regulating valve 13-3 are adjusted to suit the appropriate temperature conditions of the furnace 4. It is adjusted to supply the cooling gas through the gas pipe (13).

이때, 가스배관(13)을 통해 공급되는 냉각가스는 분사라인(18)에 충전되었다가 가스노즐(18-1)을 통해 쿨링덕트(23)와 쿨링커버(11) 사이의 공간으로 분사된다.At this time, the cooling gas supplied through the gas pipe 13 is filled in the injection line 18 and then injected into the space between the cooling duct 23 and the cooling cover 11 through the gas nozzle 18-1.

그리고, 쿨링덕트(23)와 쿨링커버(11) 사이의 공간에 충전되어 있던 냉각가스는 덕트노즐(23-1)을 통해 분사되면서 쿨링덕트(23)의 상부분위기를 낮은온도로 유지시켜 이송롤(2)의 하부측을 냉각하게 된다.The cooling gas filled in the space between the cooling duct 23 and the cooling cover 11 is injected through the duct nozzle 23-1 to maintain the upper atmosphere of the cooling duct 23 at a low temperature. The lower side of (2) is cooled.

한편, 설비에 공급되는 전원이 차단되는 정전시, 모터에 의해 구동되는 이송롤(2)이 회전을 멈추게 되고, 따라서 이송롤에 의해 진행되던 냉연강판(1)도 진행을 멈추면서 가열상태의 이송롤(2)을 하부로 누르게 된다.On the other hand, during a power failure in which power supplied to the facility is cut off, the feed roll 2 driven by the motor stops rotating, and thus the cold rolled steel sheet 1, which has been advanced by the feed roll, also stops progressing and is transferred in a heated state. The roll 2 is pressed downward.

이때, 수동레버(16)를 돌려서 스크루잭(15)을 하강시키면 하강되는 베어링블록(7)을 따라 이송롤(2)이 쿨링덕트(23)의 내측에 안착되면서 냉연강판(1)과 떨어지게 된다.At this time, when the screw jack 15 is lowered by turning the manual lever 16, the transfer roll 2 is seated inside the cooling duct 23 along the lowered bearing block 7 to be separated from the cold rolled steel sheet 1. .

그리고, 이송롤(2)과 분리된 냉연강판(1)은 쿨링덕트(23)와 쿨링커버(11)의 상단면에 걸치게 되고, 이로써 가열상태의 이송롤에 발생되는 자중과 냉연강판의 하중에 의한 휨변형을 방지할 수 있게 된다.Then, the cold rolled steel sheet 1 separated from the transfer roll 2 is applied to the upper end surfaces of the cooling duct 23 and the cooling cover 11, and thus the load of the self-weight and the cold rolled steel sheet generated in the heating roll in the heated state. It is possible to prevent the bending deformation caused by.

본 발명은 정상구동시 이송롤의 열변형을 방지하기 위하여 냉각가스에 의한 냉각분위기를 유지하고, 정전시 이송롤을 냉각분위기의 쿨링덕트에 안착시킴으로써 휨변형을 방지함으로써 이송롤의 수명을 연장시키고, 작업의 생산성을 향상시킬 수 있는 효과를 제공한다.The present invention maintains the cooling atmosphere by the cooling gas to prevent thermal deformation of the transfer roll during normal operation, and extends the life of the transfer roll by preventing bending deformation by seating the transfer roll on the cooling duct of the cooling atmosphere during power failure It provides the effect of improving the productivity of work.

Claims (1)

가열로(4)에 내장되는 이송롤(2)의 하부에 쿨링커버(11)가 지지블록(12)에 의해 지지되도록 설치되고, 가스배관(13)과 연결되면서 외주면에 가스노즐(18-1)을 형성하는 분사라인(18)이 상기 쿨링커버(11)에 내장되며, 덕트노즐(23-1)을 형성하는 쿨링덕트(23)가 상기 분사라인(18)의 상부에 위치하도록 상기 쿨링커버(11)에 내장되는 냉각부(31)와;The cooling cover 11 is installed at the lower portion of the transfer roll 2 embedded in the heating furnace 4 so as to be supported by the support block 12, and is connected to the gas pipe 13 to the gas nozzle 18-1 on the outer circumferential surface thereof. The cooling cover 18 is formed in the cooling cover 11, the cooling duct 23 forming the duct nozzle (23-1) is located above the cooling line (18). A cooling unit 31 embedded in the 11; 레버(16)에 의해 조작되는 기어박스(17)가 베이스(29)의 상면에 부착되고, 하부가 상기 기어박스(17)에 치결합되는 스크루잭(15)의 상부에 베어링블록(17)이 고정되는 승하강부(30)로 구성되는 것을 특징으로 하는 롤 냉각장치.The gearbox 17 operated by the lever 16 is attached to the upper surface of the base 29, and the bearing block 17 is provided on the upper portion of the screw jack 15, the lower portion of which is engaged with the gearbox 17. Roll cooling apparatus, characterized in that consisting of a fixed lifting section (30).
KR1019980011361A 1998-03-31 1998-03-31 Roll chiller KR19990076422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980011361A KR19990076422A (en) 1998-03-31 1998-03-31 Roll chiller

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Application Number Priority Date Filing Date Title
KR1019980011361A KR19990076422A (en) 1998-03-31 1998-03-31 Roll chiller

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KR19990076422A true KR19990076422A (en) 1999-10-15

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Application Number Title Priority Date Filing Date
KR1019980011361A KR19990076422A (en) 1998-03-31 1998-03-31 Roll chiller

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101255065B1 (en) * 2006-02-20 2013-04-17 주식회사 포스코 Partially cooling apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101255065B1 (en) * 2006-02-20 2013-04-17 주식회사 포스코 Partially cooling apparatus and method

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