WO2013157726A1 - 냉각장치 및 이를 구비하는 연속주조기용 세그먼트 - Google Patents
냉각장치 및 이를 구비하는 연속주조기용 세그먼트 Download PDFInfo
- Publication number
- WO2013157726A1 WO2013157726A1 PCT/KR2012/011702 KR2012011702W WO2013157726A1 WO 2013157726 A1 WO2013157726 A1 WO 2013157726A1 KR 2012011702 W KR2012011702 W KR 2012011702W WO 2013157726 A1 WO2013157726 A1 WO 2013157726A1
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- WIPO (PCT)
- Prior art keywords
- cooling water
- rod
- segment
- driving means
- continuous casting
- Prior art date
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
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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
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
Definitions
- the present invention relates to a cooling device and a segment for a continuous casting machine having the same, and more particularly, to a cooling device capable of cooling the cast piece effectively in response to a change in width of the casting during continuous casting, and a segment for a continuous casting machine having the same. will be.
- the continuous casting process continuously injects molten steel into a mold of a predetermined shape, and continuously casts the slabs reacted in the mold to the lower side of the mold, thereby forming slabs and blooms. And semi-finished products of various shapes such as billets.
- ring cycle a schematic configuration of a general continuous casting machine (hereinafter, referred to as a “ring cycle”) in which the continuous casting process is performed, and a segment provided in the player are as follows.
- a general player is a ladle 10 containing molten steel refined in a steelmaking process and a tundish 20 temporarily receiving molten steel through an injection nozzle connected to the ladle 10 and temporarily storing the molten steel.
- a series of molding operations while cooling the unsolidified cast piece S provided at the bottom of the mold 30 and the mold 30 to receive the molten steel temporarily stored in the tundish 20 and initially solidify to a predetermined shape. It comprises a cooling line 40 in which a plurality of segments 50 are arranged in series to perform.
- the segment 50 is arranged so that the plurality of rollers 52 and 54 are opposed to each other, and the plurality of tie rods (not shown) connecting the upper frame 51 and the lower frame 53 which are spaced up and down vertically.
- a plurality of hydraulic cylinders 55 and the upper frame 51 and the lower part which apply a pressing force to the cast steel S by adjusting the separation distance between the upper frame 51 and the lower frame 53 by using the tie rod as a piston.
- It is provided in the frame 53 includes a cooling device (not shown) for cooling the cast (1).
- Cast slab (S) passing through the mold 30 is pressed by a plurality of rollers (52, 54) while passing through the space between the upper frame 51 and the lower frame 53 is formed into a constant shape.
- Chillers should maintain the same level of cooling from narrow to wide to respond to changes in slab width. Therefore, in order to satisfy this condition, as shown in FIG. 2, the plurality of nozzles 56a and 56b are disposed in the width direction of the cast steel S so that some nozzles, for example, the cast steel S may be disposed according to the width of the cast steel S.
- the slab S was cooled while turning on / off the nozzle 56b located at the edge.
- this method has a lot of limiting factors, such as complicated pipes, such as difficult to maintain, as the number of nozzles increases. Accordingly, a method of spraying cooling water while moving a nozzle having a wide injection angle according to the width of a cast steel has been proposed.
- the driving means for moving the nozzle is located near the cast steel, and there is a problem in that deterioration and failure frequently occur due to heat generated by the cast steel and moisture caused by cooling water.
- the present invention provides a cooling device capable of easily adjusting the spraying area of the cooling water according to the width change of the cast steel, and a segment for a continuous casting machine having the same.
- the present invention provides a cooling apparatus capable of precise and stable control and a segment for a continuous casting machine having the same.
- the present invention provides a cooling device capable of improving durability and a segment for a continuous casting machine having the same.
- the present invention provides a cooling apparatus capable of improving process efficiency and productivity and a segment for a continuous casting machine having the same.
- Cooling apparatus the drive means for providing a rotational force; Cooling water injection units which are provided on both sides of the driving means, respectively, and provided with at least one nozzle for cooling water; And moving means provided between the driving means and each of the cooling water injection units to symmetrically move each of the cooling water injection units.
- a head having a flow path formed therein; And a plurality of nozzles spaced apart from each other to communicate with the flow path in the head.
- the moving means moves the cooling water injection unit in the vertical direction and the left and right directions, the moving means includes a rotation shaft connected to the driving means, one side is inclined to be connected to the cooling water injection unit; And motion conversion means provided between the rotation shaft and the rod to convert the rotation movement of the rotation shaft into a linear movement to linearly move the rod.
- the rotation shaft and the motion conversion means may form a worm gear, and the motion conversion means and the rod may form a rack gear.
- the moving means may be accommodated in a housing and fixed to the driving means and the coolant injection unit.
- the other side of the rod is provided with a hollow guide member having an internal space formed to move the rod, the guide member may be fixed to the housing.
- the drive means may be a servo motor.
- the continuous casting machine segment includes an upper frame and a lower frame spaced apart from each other, a plurality of rollers provided in the upper frame and the lower frame, respectively, and disposed in the width direction of the cast steel, and the plurality of A segment for a continuous casting machine comprising a cooling device for injecting cooling water for each roller, the drive means being provided in each of the upper center of the upper frame and the lower frame; Driving means which are provided at both sides of the driving means, respectively, and provided with at least one nozzle through which coolant is injected; And moving means provided between the driving means and the cooling water injection unit to symmetrically move the cooling water injection unit.
- the moving means may reciprocate the cooling water injection unit in the width direction and the vertical direction of the cast steel.
- the moving means may include a rotation shaft connected to the driving means, and one side connected to the coolant injection part to be inclined toward the inside of the segment; And a motion converting means provided between the rotation shaft and the rod to convert the rotation movement of the rotation shaft into a linear movement to diagonally move the rod.
- the drive means may be a servo motor.
- the cooling device and the segment for a continuous casting machine having the same can easily control the injection region of the cooling water in response to the change in the width of the continuously cast steel casting.
- the distribution of the area in which the coolant is injected may be symmetrically controlled.
- 1 is a view showing the configuration and segment of a typical continuous casting machine.
- FIG. 2 is a view showing an example of the use of a cooling device provided in the segment shown in FIG.
- FIG 3 is a view showing the structure of a segment for a continuous casting machine according to an embodiment of the present invention.
- FIG. 4 is a perspective view of the cooling apparatus shown in FIG.
- FIG. 5 is a front view of the cooling apparatus shown in FIG.
- FIG. 6 and 7 are views showing a state of use of the cooling apparatus according to an embodiment of the present invention.
- FIG. 3 is a view showing the structure of a segment for a continuous casting machine according to an embodiment of the present invention
- Figures 4 and 5 are a perspective view and a front view of the cooling device shown in FIG.
- the segment includes an upper roller assembly and a lower roller assembly.
- the segment includes an upper frame 100 and a lower frame 102 spaced apart from each other, and each of the plurality of rollers provided with the upper frame 100 and the lower frame 102 and disposed in the width direction of the cast steel S, respectively.
- It includes a cooling device for spraying the cooling water between the plurality of girders plate 110 and the plurality of rollers (120, 122) to support.
- the segment is a tie rod (140) for vertically connecting the upper frame 100 and the lower frame 102 in a spaced apart state, and the upper frame 100 and the lower portion to apply a pressing force to the slab (S)
- the cooling device is installed in the upper center of the upper frame 100 and the lower frame 102, more specifically, the girder plate 110 to cool the water to the cast (S) is transferred between the upper frame 100 and the lower frame (102). Spray.
- the cooling apparatus is provided on both sides of the driving means 210 for providing rotational force to the girder plate 110 and the driving means 210, and at least one nozzle for spraying coolant ( 224, respectively, the first and second coolant injection unit 220, 220 'and the driving means 210, respectively connected to the first and second coolant injection unit 220, 220' to reciprocally move in a diagonal direction
- It includes a control unit for controlling the operation of the first and second moving means 230 and the driving means 210.
- Each of the first and second coolant injection units 220 and 220 ′ has a coolant injection hole through which coolant is supplied, a head 222 having a flow path through which coolant moves, and a head 222 communicating with the flow path. It includes a plurality of nozzles 224 spaced apart along the longitudinal direction of the cast (S). The plurality of nozzles 224 are connected to the head to inject cooling water in the longitudinal direction of the cast (S) in the segment. In addition, the nozzles 224 provided in the upper frame 100 are sprayed in the lower direction so that the plurality of nozzles 224 spray the coolant to the slab S passing between the upper frame 100 and the lower frame 102.
- the nozzle 224 provided in the lower frame 102 is formed to extend in the upper direction is formed to spray the coolant to the top.
- the nozzle 224 may be formed in a slit form so that the spray region of the cooling water is formed in the width direction of the cast (S).
- the driving means 210 may be various types such as a DC motor, a stepping motor, an AC servo motor capable of rotating the rotating shaft 232.
- the rotational speed can be finely adjusted, so that the movement distance of the coolant injection units 220 and 220 'can be precisely controlled.
- the driving means 210 is installed in the segment, the distance of the pipe for supplying the cooling water to the cooling water injection unit 220, 220 'is also shortened to simplify the installation, and at the same time the installation space of the driving means 210 Can also be reduced.
- Each of the first and second moving means 230 includes a rotation shaft 232 connected to the driving means 210, a rod 236 connected to the head, and a motion conversion provided between the rotation shaft 232 and the rod 236. Means; The first and second moving means 230 are accommodated in the housing 240 having a space formed therein and fixed to the driving means 210 and the first and second coolant injection parts 220 and 220 '.
- the rotating shaft 232 is connected to the drive means 210 in the horizontal direction, the screw is formed along the outer peripheral surface.
- the rotating shaft 232 connected to the first and second driving means 210, respectively, so that the screws are formed in opposite directions so that the first and second coolant injection parts 220 and 220 'can be symmetrically moved to each other. do. That is, since the first and second coolant injection parts 220 and 220 'are driven using one driving means 210, screws are formed on the rotation shaft 232 connected to the driving means 210 in opposite directions. As a result, the first and second coolant injection parts 220 and 220 'disposed in opposite directions can be symmetrically moved.
- the rod 236 is disposed on the same line in the vertical direction of the rotation shaft 232, and one side is connected to the head 222. And the rod 236 is disposed so that the other side is inclined toward the center of the segment while being connected to the head.
- a plurality of rods 236 may be connected to sufficiently support the cooling water injection units 220 and 220 '.
- the rod 236 is formed with teeth along the longitudinal direction of the rod 236 on the outer circumferential surface.
- the motion converting means is formed in an annular shape, and includes a wheel 234 formed with teeth on the outer circumferential surface of the shaft 232 and teeth of the rod 236 meshed with each other, and a shaft 234 used as the rotation shaft.
- the motion converting means converts the rotational motion of the rotation shaft 232 into a linear motion and transmits it to the rod 236.
- the rod 236 is a linear motion by using the rotational force provided by the drive means (210).
- the shaft 234 is disposed in a direction orthogonal to the rotation shaft 232, and is fixed to be rotatable inside the housing 240.
- the rotation shaft 232 is a worm
- the motion conversion means is used as a worm wheel to form a worm gear
- the motion conversion means and the rod 236 by forming a rack gear rod 236 through a combination of worm gear and rack gear
- the first and second coolant injection parts 220 and 220 ' can be reciprocated in the width direction and the vertical direction of the cast steel S.
- the screw formed on the rotating shaft 232 and the teeth formed on the rod 236 and the motion converting means are respectively first and second coolant injection parts 220 and 220 'through the rotational force provided by the driving means 210. Is preferably formed so that it can move the same distance.
- one side outer peripheral surface of the rod 236 exposed from the housing 240 is provided with a flexible protective member 237, the protective member 237 is fixed to the housing 240.
- the protection member 237 expands and contracts in response to the movement of the rod 236 and prevents the rod 236 from being deteriorated by high heat and moisture, and at the same time, alleviates the shock generated while the rod 236 moves, thereby cooling the water jet. It is also possible to prevent the connection between the 220 and 220 ′ and the rod 236.
- the guide member 238 is disposed on the other side of the rod 236.
- the guide member 238 is formed in a hollow cylindrical shape with one side open, and the rod 236 reciprocates therein.
- the guide member 238 is disposed to be inclined toward the center of the segment according to the arrangement of the rod 236 and is fixed to the housing 240.
- FIGS. 6 and 7 are views showing a state of use of the cooling apparatus according to an embodiment of the present invention.
- a description will be given of the cooling device installed in the upper roller assembly.
- the driving principle is the same as the rising or falling direction of the cooling device is opposite.
- the narrow slab S for example, the slab S of width 200mm is manufactured by a continuous casting process.
- the rotating shaft 232 connected to the driving means 210 rotates in one direction.
- the motion conversion means engaged with the rotation shaft 232 rotates, and the rod 236 engaged with the motion conversion means moves inside the guide member 238 by the rotation of the motion conversion means.
- the coolant injection parts 220 and 220 ′ connected to the rod 236 move downward in a diagonal direction in the inward direction of the segment and descend toward the cast steel S.
- the coolant injection units 220 and 220 'connected to both sides of the driving unit 210 are symmetrically moved at the same distance.
- the distance between the nozzle 224 forming the cooling water injection units 220 and 220 'and the surface of the cast steel S become close, and the spraying area of the cooling water injected through the nozzle 224 is reduced.
- the driving means 210 is operated under the control of the controller to rotate the rotary shaft 232 connected to the driving means 210 in the opposite direction as when the narrow slab S is manufactured. Accordingly, the motion conversion means engaged with the rotation shaft 232 also rotates corresponding to the rotation direction of the rotation shaft 232, and the rod 236 engaged with the motion conversion means is guided by the rotation of the motion conversion means. ) Will move to the outside. Accordingly, the coolant injection parts 220 and 220 ′ connected to the rod 236 move upward from the surface of the slab S by diagonally moving in the outward direction of the segment. Therefore, the distance between the nozzle 224 forming the cooling water injection parts 220 and 220 'and the surface of the cast steel S increases so that the injection area of the cooling water injected through the nozzle 224 increases.
- the cooling device according to the embodiment of the present invention will be described with respect to the cooling device provided in the segment constituting the continuous casting machine as described above, but the technical idea is not limited thereto.
- the cooling apparatus according to the present invention and the segment for a continuous casting machine having the same can easily control the spraying area of the cooling water in response to a change in the width of the cast steel continuously cast by one driving means. Therefore, it is possible to improve the maintainability by reducing the size of the installation compared to the conventional, it is possible to improve the process efficiency and productivity. Therefore, the present invention improves industrial applicability.
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Abstract
Description
Claims (13)
- 회전력을 제공하는 구동수단;상기 구동수단의 양측에 각각 구비되며, 냉각수가 분사되는 적어도 하나의 노즐이 각각 구비되는 냉각수 분사부; 및상기 구동수단과 상기 냉각수 분사부 각각 사이에 구비되어 상기 냉각수 분사부 각각을 서로 대칭적으로 이동시키는 이동수단;을 포함하는 냉각장치.
- 청구항 1에 있어서,상기 냉각수 분사부는 내부에 유로가 형성되는 헤드와;상기 헤드에 상기 유로와 연통하도록 이격되어 구비되는 복수의 노즐;을 포함하는 냉각장치.
- 청구항 1에 있어서,상기 이동수단은 상기 냉각수 분사부를 상하방향 및 좌우방향으로 이동시키는 냉각장치.
- 청구항 1 또는 청구항 3에 있어서,상기 이동수단은,상기 구동수단에 연결되는 회전축과,일측이 상기 냉각수 분사부에 연결되어 기울어지도록 배치되는 로드; 및상기 회전축과 상기 로드 사이에 구비되어 상기 회전축의 회전운동을 직선운동으로 변환하여 상기 로드를 직선운동시키는 운동변환수단;을 포함하는 냉각장치.
- 청구항 4에 있어서,상기 회전축과 상기 운동변환수단은 웜기어를 형성하고, 상기 운동변환수단과 상기 로드는 랙기어를 형성하는 냉각장치.
- 청구항 4에 있어서,상기 이동수단은 하우징 내에 수납되어 상기 구동수단 및 상기 냉각수 분사부에 고정되는 냉각장치.
- 청구항 4에 있어서,상기 로드의 타측에는 상기 로드가 이동하도록 내부 공간이 형성된 중공의 가이드부재가 구비되고, 상기 가이드부재는 상기 하우징에 고정되는 냉각장치.
- 청구항 1 또는 청구항 3에 있어서,상기 구동수단은 서보 모터인 냉각장치.
- 상하로 이격되어 구비되는 상부 프레임 및 하부 프레임과, 상기 상부 프레임 및 하부 프레임에 각각 구비되며 주편의 폭 방향으로 배치되는 복수의 롤러 및 상기 복수의 롤러 사이마다 냉각수를 분사하는 냉각장치를 포함하는 연속주조기용 세그먼트로서,상기 상부 프레임 및 하부 프레임의 상부 중앙에 각각 구비되는 구동수단;상기 구동수단의 양측에 각각 구비되며, 냉각수가 분사되는 적어도 하나의 노즐이 각각 구비되는 냉각수 분사부; 및상기 구동수단과 상기 냉각수 분사부 사이에 구비되어 상기 냉각수 분사부를 대칭적으로 이동시키는 이동수단;을 포함하는 연속주조기용 세그먼트.
- 청구항 9에 있어서,상기 냉각수 분사부는 내부에 유로가 형성되고, 상기 주편의 길이방향으로 배치되는 헤드와;상기 헤드에 상기 유로와 연통하도록 이격되어 구비되는 복수의 노즐;을 포함하는 연속주조기용 세그먼트.
- 청구항 9에 있어서,상기 이동수단은 상기 냉각수 분사부를 상기 주편의 폭방향 및 상하방향으로 왕복 이동시키는 연속주조기용 세그먼트.
- 청구항 9 또는 청구항 11에 있어서,상기 이동수단은,상기 구동수단에 연결되는 회전축과,일측이 상기 냉각수 분사부에 연결되어 상기 세그먼트의 내측을 향해 기울어지도록 배치되는 로드; 및상기 회전축과 상기 로드 사이에 구비되어 상기 회전축의 회전운동을 직선운동으로 변환하여 상기 로드를 대각이동시키는 운동변환수단;을 포함하는 연속주조기용 세그먼트.
- 청구항 9에 있어서,상기 구동수단은 서보 모터인 연속주조기용 세그먼트.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12874530.4A EP2839903B1 (en) | 2012-04-20 | 2012-12-28 | Segment for continuous casting machine |
CN201280072516.6A CN104245186A (zh) | 2012-04-20 | 2012-12-28 | 冷却设备和用于连铸机的设置有该冷却设备的片段 |
IN2300KON2014 IN2014KN02300A (ko) | 2012-04-20 | 2012-12-28 | |
UAA201412416A UA110177C2 (uk) | 2012-04-20 | 2012-12-28 | Охолоджувальний апарат та сегмент машини безперервного лиття заготовок, оснащений цим пристроєм |
RU2014146566/02A RU2596536C2 (ru) | 2012-04-20 | 2012-12-28 | Аппарат охлаждающий и сегмент установки непрерывной разливки, снабженной данным аппаратом |
JP2015506881A JP5951887B2 (ja) | 2012-04-20 | 2012-12-28 | 連続鋳造機用セグメント |
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KR1020120041586A KR101460660B1 (ko) | 2012-04-20 | 2012-04-20 | 냉각장치 및 이를 구비하는 연속주조기용 세그먼트 |
KR10-2012-0041586 | 2012-04-20 |
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EP (1) | EP2839903B1 (ko) |
JP (1) | JP5951887B2 (ko) |
KR (1) | KR101460660B1 (ko) |
CN (1) | CN104245186A (ko) |
IN (1) | IN2014KN02300A (ko) |
RU (1) | RU2596536C2 (ko) |
UA (1) | UA110177C2 (ko) |
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- 2012-04-20 KR KR1020120041586A patent/KR101460660B1/ko active IP Right Grant
- 2012-12-28 WO PCT/KR2012/011702 patent/WO2013157726A1/ko active Application Filing
- 2012-12-28 IN IN2300KON2014 patent/IN2014KN02300A/en unknown
- 2012-12-28 JP JP2015506881A patent/JP5951887B2/ja not_active Expired - Fee Related
- 2012-12-28 UA UAA201412416A patent/UA110177C2/uk unknown
- 2012-12-28 EP EP12874530.4A patent/EP2839903B1/en not_active Not-in-force
- 2012-12-28 RU RU2014146566/02A patent/RU2596536C2/ru not_active IP Right Cessation
- 2012-12-28 CN CN201280072516.6A patent/CN104245186A/zh active Pending
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JPH0742664U (ja) * | 1993-12-30 | 1995-08-11 | 日本鋼管株式会社 | 連続鋳造設備の2次冷却用スプレイノズル移動装置 |
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WO2010037480A1 (de) * | 2008-10-01 | 2010-04-08 | Sms Siemag Ag | Vorrichtung und verfahren zur sekundärkühlung in einer stranggiessanlage |
Also Published As
Publication number | Publication date |
---|---|
EP2839903B1 (en) | 2018-02-28 |
JP2015514590A (ja) | 2015-05-21 |
CN104245186A (zh) | 2014-12-24 |
KR101460660B1 (ko) | 2014-11-13 |
EP2839903A1 (en) | 2015-02-25 |
IN2014KN02300A (ko) | 2015-05-01 |
RU2014146566A (ru) | 2016-06-10 |
JP5951887B2 (ja) | 2016-07-13 |
UA110177C2 (uk) | 2015-11-25 |
KR20130118595A (ko) | 2013-10-30 |
RU2596536C2 (ru) | 2016-09-10 |
EP2839903A4 (en) | 2015-12-23 |
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