KR20000010627U - Heat deformation prevention roll with double spiral cooling water passage - Google Patents

Heat deformation prevention roll with double spiral cooling water passage Download PDF

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Publication number
KR20000010627U
KR20000010627U KR2019980022992U KR19980022992U KR20000010627U KR 20000010627 U KR20000010627 U KR 20000010627U KR 2019980022992 U KR2019980022992 U KR 2019980022992U KR 19980022992 U KR19980022992 U KR 19980022992U KR 20000010627 U KR20000010627 U KR 20000010627U
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South Korea
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cooling water
water passage
roll
heat deformation
double spiral
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KR2019980022992U
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Korean (ko)
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엄완길
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이구택
포항종합제철 주식회사
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Priority to KR2019980022992U priority Critical patent/KR20000010627U/en
Publication of KR20000010627U publication Critical patent/KR20000010627U/en

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  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

본 고안은 고온의 강판과 접촉하는 롤의 열변형을 방지하기 위하여 롤 표면에 근접한 내부에 2중 나선형 냉각수통로를 형성하여 그를 통해 냉각수를 공급할 수 있도록 된 2중 나선형 냉각수통로를 가지는 열변형 방지롤에 관한 것으로서,The present invention is to prevent the heat deformation of the roll in contact with the hot steel sheet to form a double spiral cooling water passage in the interior close to the surface of the roll to prevent the heat deformation through the double spiral cooling water passage to supply the cooling water therethrough As for

내부의 냉각수 통로를 통해 냉각수를 공급함으로서 열변형이 방지되도록 된 열변형 방지롤에 있어서, 상기 냉각수 통로는 2중 나선형으로 이루어진 제1냉각수 통로(11)와 제2냉각수 통로(12)로 이루어지고, 상기 냉각수 통로(11)(12)의 각각에는 롤축(91)(92)에 각각 복수개씩 갖추어진 로터리조인트(21A)(21B)(22A)(22B)를 통해 서로 반대방향으로 냉각수가 공급되어 배출됨을 특징으로 한다.In the heat deformation prevention roll to prevent the heat deformation by supplying the cooling water through the internal cooling water passage, the cooling water passage is composed of the first cooling water passage 11 and the second cooling water passage 12 made of a double spiral Each of the cooling water passages 11 and 12 is supplied with cooling water in opposite directions through rotary joints 21A, 21B, 22A, and 22B, each of which is provided in a plurality of roll shafts 91 and 92, respectively. Characterized in that discharged.

Description

2중 나선형 냉각수통로를 가지는 열변형 방지롤Heat deformation prevention roll with double spiral cooling water passage

본 고안은 고온의 강판과 접촉하는 롤의 열변형을 방지하기 위하여 롤 표면에 근접한 내부에 2중 나선형 냉각수통로를 형성하여 그를 통해 냉각수를 공급할 수 있도록 된 2중 나선형 냉각수통로를 가지는 열변형 방지롤에 관한 것이다.The present invention is to prevent the heat deformation of the roll in contact with the hot steel sheet to form a double spiral cooling water passage in the interior close to the surface of the roll to prevent the heat deformation through the double spiral cooling water passage to supply the cooling water therethrough It is about.

일반적으로 제철설비에서 사용되어지는 대부분의 롤은 고온의 강판과 접촉함에 의해 열변형되면서 수명이 저하하고 또한 강판의 품질을 저하시키는 것은 물론 크라운현상에 의해 강판이 정상통로로부터 이탈되는 여러 가지 문제점을 초래한다.In general, most of the rolls used in steel making facilities are deformed due to heat deformation due to contact with high-temperature steel sheets, and also deteriorate the quality of the steel sheets. Cause.

특히, 합금화로를 통과한 직후의 강판을 지지하는 디플렉터롤(Deflector Roll)의 경우 표면온도가 상승하면서 강판의 아연분말이 롤의 표면으로 고착되는 현상이 발생하는바, 이는 강판의 품질저하는 물론 롤 표면에 고착된 아연파우더는 점차 확대되면서 강판의 도금층을 파괴시키는 치명적인 결함발생요인으로 작용하고, 따라서 롤의 표면을 적정한 온도로 냉각하는 것이 필요하다.In particular, in the case of the deflector roll supporting the steel sheet immediately after passing through the alloying furnace, the zinc powder of the steel sheet is fixed to the surface of the roll as the surface temperature rises. The zinc powder stuck to the roll surface gradually enlarges and acts as a fatal defect factor that destroys the plated layer of the steel sheet, and therefore, it is necessary to cool the surface of the roll to an appropriate temperature.

도1은 종래기술에 따라 롤을 냉각하는 방법을 도시하는바, 이는 강판(110)을 지지하는 롤(120)의 표면부에 고압공기와 냉각수를 분사하도록 구성된다. 즉, 롤(120)의 폭방향으로 일정간격 떨어진 다수개의 분사노즐(130)을 설치하고, 상기 분사노즐(130)의 각각은 제1분지관(141)과 제2분지관(142)을 통해 냉각수공급배관(151)과 고압공기공급배관(152)에 연결되며, 상기 제1 및 제2 분지관(141)(142)의 각각에는 냉각수 및 고압공기의 유량을 조절하기 위한 유량조절밸브(141a)(142a)가 장착됨으로서, 공기와 냉각수의 혼합유체를 분사함에 의해 롤(120)의 표면을 냉각하는 것이다.1 shows a method of cooling a roll according to the prior art, which is configured to spray high pressure air and coolant to the surface portion of the roll 120 supporting the steel sheet 110. That is, a plurality of injection nozzles 130 spaced apart by a predetermined interval in the width direction of the roll 120, each of the injection nozzles 130 through the first branch pipe 141 and the second branch pipe 142 It is connected to the cooling water supply pipe 151 and the high pressure air supply pipe 152, each of the first and second branch pipes (141, 142) flow control valve for adjusting the flow rate of the cooling water and high pressure air (141a) By mounting 142a, the surface of the roll 120 is cooled by spraying a mixed fluid of air and cooling water.

그러나, 이러한 종래의 방법은 롤(120)의 외표면부에 냉각수를 분사하는 것이어서 하부로 떨어진 냉각수를 처리하기 위한 별도의 설비가 갖추어져야 하며, 비산되는 냉각수에 의해 주변설비가 부식되어지는 문제점을 초래하고, 또한 공기와 냉각수의 분사가 다수개로 이루어진 분사노즐(130)에 의해 이루어지기 때문에 각각의 분사노즐(130)로부터 분사되는 혼합유체의 분사량을 동일하도록 조정하기가 매우 곤란함에 의해 롤(120)을 불균일하게 냉각함으로서 상대적으로 고온인 부분에 아연분말이 고착되는 문제점을 여전히 가지고 있는 것이었다.However, such a conventional method is to spray the coolant to the outer surface of the roll 120, so that a separate facility for treating the coolant dropped to the lower side should be provided, and the peripheral equipment is corroded by the scattered coolant. In addition, since the injection of air and cooling water is made by a plurality of injection nozzles 130, it is very difficult to adjust the injection amounts of the mixed fluids injected from each injection nozzle 130 to be the same so that the roll 120 ), There was still a problem of zinc powder sticking to a relatively hot part by cooling unevenly.

본 고안은 이러한 종래의 문제점을 해소하기 위하여 안출된 것으로서 그 목적은, 고온의 강판과 접촉하는 롤의 내부에 표면과 근접하면서 2중 나선형으로 된 냉각수 통로를 형성하여 그 통로를 통해 냉각수를 공급함으로서 열변형을 방지할 수 있도록 된 2중 나선형 냉각수통로를 가지는 열변형 방지롤을 제공함에 있다.The present invention has been devised to solve such a conventional problem, and its purpose is to form a double spiral cooling water passage near the surface and to supply the coolant through the passage within the roll in contact with the hot steel sheet. The present invention provides a heat deformation preventing roll having a double spiral cooling water passage to prevent heat deformation.

도1은 종래기술에 따라 롤을 냉각하는 방법을 개략적으로 도시한 구성도1 is a configuration diagram schematically showing a method of cooling a roll according to the prior art;

도2는 본 고안에 따른 2중 나선형 냉각수통로를 가지는 열변형 방지롤을 도시한 단면 구성도Figure 2 is a cross-sectional view showing a heat deformation preventing roll having a double spiral cooling water passage according to the present invention

도3은 도2의 요부 상세도이다.3 is a detailed view of the main part of FIG.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 ... 몸체10 ... body

11,12 ... 냉각수통로11,12 ... cooling water passage

14 ... 롤축14 ... roll axis

21A,21B,22A,22B ... 로터리조인트21A, 21B, 22A, 22B ... Rotary Joint

21C,22C ... 냉각수공급배관21C, 22C ... Chilled water supply piping

21D,22D ... 냉각수배출배관21D, 22D ... cooling water discharge pipe

상기 목적을 달성하기 위한 기술적인 구성으로서 본 고안은,The present invention as a technical configuration for achieving the above object,

내부의 냉각수 통로를 통해 냉각수를 공급함으로서 열변형이 방지되도록 된 열변형 방지롤에 있어서,In the heat deformation prevention roll to prevent heat deformation by supplying the cooling water through the internal coolant passage,

상기 냉각수 통로는 2중 나선형으로 이루어진 제1냉각수 통로와 제2냉각수 통로로 이루어지고, 상기 냉각수 통로의 각각에는 롤축에 각각 복수개씩 갖추어진 로터리조인트를 통해 서로 반대방향으로 냉각수가 공급되어 배출됨을 특징으로 하는 2중 나선형 냉각수통로를 가지는 열변형 방지롤을 마련함에 의한다.The cooling water passage includes a first cooling water passage and a second cooling water passage formed in a double spiral, and each of the cooling water passages is supplied with and discharged in opposite directions through rotary joints each provided in a plurality of roll shafts. By providing a heat deformation preventing roll having a double spiral cooling water passage.

이하, 본 고안의 바람직한 일실시예를 첨부된 도면에 의거하여 보다 상세하게 설명하고자 한다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도2는 본 고안에 따른 2중 나선형 냉각수통로를 가지는 열변형 방지롤을 도시하고, 도3은 도2의 요부 상세도로서, 본 고안의 열변형 방지롤(1)의 몸체(10)는 통상적인 중공원통형 또는 중실원통형으로 이루어지고, 상기 몸체(10)의 내부에는 외표면에 근접하면서 2중 나선형으로 형성된 냉각수 통로가 갖추어진다(이하에서는, 설명의 편의상 어느 하나의 냉각수 통로를 제1냉각수 통로(11), 다른 하나의 냉각수 통로를 제2냉각수 통로(12)라 한다). 물론, 상기 제1냉각수 통로(11) 및 제2냉각수 통로(12)의 각각은 몸체(10)의 길이방향에 대한 일측 단부로부터 타측 단부까지 연속하여 형성되어지고, 이들 사이의 간격 및 형상등은 그를 통해 유입되어지는 냉각수의 온도 및 유량 또는 강판온도등의 여러 가지 요인에 의해 미리 설정되어지며, 특히 형상에 있어서는 몸체(10)의 외표면을 균일하게 냉각한다는 측면에서 직사각형 단면으로 이루어지는 것이 바람직하다.Figure 2 shows a heat deformation preventing roll having a double spiral cooling water passage according to the present invention, Figure 3 is a detail of the main portion of Figure 2, the body 10 of the heat deformation preventing roll 1 of the present invention is conventional A cooling water passage formed of a phosphorus park cylinder or a solid cylinder, and formed inside the body 10 in a double spiral while being adjacent to an outer surface (hereinafter, for convenience of description, any one cooling water passage is a first cooling water passage). (11), the other cooling water passage is referred to as the second cooling water passage 12). Of course, each of the first cooling water passage 11 and the second cooling water passage 12 is formed continuously from one end to the other end in the longitudinal direction of the body 10, the interval and shape between them It is set in advance by various factors such as the temperature and flow rate of the cooling water flowing in through it, or the steel plate temperature, and in particular, the shape is preferably made of a rectangular cross section in terms of uniform cooling of the outer surface of the body 10. .

상기 몸체(10)의 양단부에는 베어링블록(16)에 의해 회전가능하도록 지지되는 롤축(14)이 일체로 고정되고, 상기 롤축(14)에는 각각 복수개의 로터리조인트(Rotary Joint)가 장착되며, 이하에서는 냉각수를 냉각수통로에 공급하는 로터리조인트를 알파벳 'A'를 부가한 (21A)(22A)로 나타내고, 냉각수를 냉각수통로로부터 배출시키는 로터리조인트를 알파벳 'B'를 부가한 (21B)(22B)로 나타내며, (21)은 제1냉각수통로(11)에 연결된 것을, (22)는 제2냉각수통로(12)에 연결된 것을 각각 나타내기로 한다. 즉, 도2에서 보여지는 바와같이 일측 롤축(14)에는 로터리조인트 (21A)와 (22B)가 설치되고, 타측 롤축(14)에는 로터리조인트 (21B)와 (22A)가 설치되어 있어, 우측 로터리조인트(21A)를 통해 제1냉각수통로(11)로 공급된 냉각수는 좌측으로 흐르다가 좌측 로터리조인트(21B)를 통해 배출되는 반면, 좌측 로터리조인트(22A)를 통해 제2냉각수통로(12)로 공급된 냉각수는 우측으로 흐르다가 우측 로터리조인트(22B)를 통해 배출되도록 함을 나타낸다.Roll shafts 14 which are rotatably supported by bearing blocks 16 are integrally fixed to both ends of the body 10, and a plurality of rotary joints are mounted on the roll shafts 14, respectively. In the figure, the rotary joint for supplying the cooling water to the cooling water passage is represented by (21A) 22A with the letter 'A' and the rotary joint for discharging the cooling water from the cooling water passage with the letter 'B' (21B) (22B). Denoted by (21) is connected to the first cooling water passage 11, and (22) will be shown to be connected to the second cooling water passage (12), respectively. That is, as shown in Fig. 2, rotary joints 21A and 22B are provided on one roll shaft 14, and rotary joints 21B and 22A are provided on the other roll shaft 14, and the right rotary The coolant supplied to the first cooling water passage 11 through the joint 21A flows to the left side and is discharged through the left rotary joint 21B, while the second cooling water passage 12 is passed through the left rotary joint 22A. The supplied coolant flows to the right and is discharged through the right rotary joint 22B.

물론, 상기 각각의 로터리조인트(21A)(21B)(22A)(22B)는 롤축(14)에 베어링부재(24)를 매개로 장착되어 미도시된 설비프레임등에 고정되고, 또한 상기 베어링부재(24)의 양측에는 실링부재(25)가 각각 장착됨으로서 롤(1)의 회전시 냉각수 누설이 방지될 수 있는 것이다.Of course, each of the rotary joints 21A, 21B, 22A, 22B is mounted to the roll shaft 14 via the bearing member 24 and fixed to a facility frame, not shown, and the bearing member 24. The sealing member 25 is mounted on both sides of the c) so that cooling water leakage can be prevented when the roll 1 is rotated.

또한, 몸체(10)측으로 가까이 장착되어 있는 로터리조인트(21A)(22A)는 제1냉각수통로(11)와 제2냉각수통로(12)에 각각 냉각수를 공급할 수 있는 냉각수공급배관(21C)(22C)과 연결되고, 다른 로터리조인트(21B)(22B)는 제1냉각수통로(11)와 제2냉각수통로(12)로부터 각각 냉각수를 배출시킬 수 있는 냉각수배출배관(21D)(22D)과 연결되며, 상기 냉각수배출배관(21D)(22D)은 냉각수공급배관(21C)(22C)의 중앙을 통과하도록 하는 것이 바람직한데, 이는 냉각수배출배관(21C)(22C)을 통해 배출되어지는 고온의 냉각수가 롤축(14)을 가열하지 않도록 하는 것이 좋으며, 또한 롤축(14)이 냉각수공급배관(21C)(22C)을 통해 공급되는 냉각수와의 열교환에 의해 냉각되어짐으로서 열변형되는 것을 방지하도록 하는데 효과가 있는 것이다.In addition, the rotary joints 21A and 22A mounted closer to the body 10 side have cooling water supply pipes 21C and 22C that can supply cooling water to the first cooling water passage 11 and the second cooling water passage 12, respectively. The other rotary joints 21B and 22B are connected to cooling water discharge pipes 21D and 22D for discharging the cooling water from the first cooling water passage 11 and the second cooling water passage 12, respectively. Preferably, the coolant discharge pipe 21D and 22D pass through the center of the coolant supply pipe 21C and 22C, which is a high temperature coolant discharged through the coolant discharge pipe 21C and 22C. It is preferable not to heat the roll shaft 14, and it is effective to prevent the roll shaft 14 from being thermally deformed by being cooled by heat exchange with the coolant supplied through the coolant supply pipes 21C and 22C. will be.

그리고, 상기 롤축(14)에는 로터리조인트(21A)(21B)(22A)(22B)가 연결된 부분에 각각 방사상으로 향하면서 냉각수공급배관(21C)(22C) 또는 냉각수배출배관(21D)(22D)과 연결된 다수개의 냉각수분지유로(21E)(22E)를 형성하고, 이들 냉각수분지유로(21E)(22E)를 로터리조인트(21A)(21B)(22A)(22B)에 원주방향으로 연속하여 형성된 냉각수집수유로(21F)(22F)와 연결되도록 함으로서, 냉각수의 공급 및 배출이 가능하도록 한다.The roll shaft 14 is radially directed to the portions to which the rotary joints 21A, 21B, 22A and 22B are connected, respectively, and the coolant supply pipe 21C and 22C or the coolant discharge pipe 21D and 22D. A plurality of cooling water basin flow passages 21E and 22E connected to each other, and the cooling water basin flow passages 21E and 22E are continuously formed in the circumferential direction at the rotary joints 21A, 21B, 22A and 22B. By connecting to the collection water passages 21F and 22F, it is possible to supply and discharge the cooling water.

물론, 상기 냉각수집수유로(21F)(22F)는 냉각수주공급관(미도시) 또는 냉각수주배출관(미도시)에 연결된다.Of course, the cooling water collection passages 21F and 22F are connected to a cooling water main supply pipe (not shown) or a cooling water main discharge pipe (not shown).

상기한 구성으로 이루어진 본 고안의 롤(1)은 2중 나선형 냉각수 통로(11)(12)을 형성하고, 제1냉각수 통로(11)는 일측 단부의 롤축(14)에 갖추어진 로터리조인트(21A)를 통해 냉각수를 공급받아 타측 단부의 롤축(14)에 갖추어진 로터리조인트(21B)를 통해 배출하면서 롤(1)의 외표면을 냉각하며, 제2냉각수 통로(11)는 상기와는 반대의 방향으로 냉각수를 공급받아 배출하면서 롤(1)의 외표면을 냉각하는바, 교차류흐름형상으로 냉각수통로를 형성함에 의한 롤(1) 외표면을 원주방향 및 길이방향으로 균일하게 냉각하는 효과를 얻을 수 있고, 이는 아연도금강판과 접촉하면서 그로부터 아연분말이 부착되는 현상을 방지하여 강판의 품질향상은 물론 롤의 오염을 방지하게 된다.The roll 1 of the present invention having the above-described configuration forms a double spiral cooling water passage 11, 12, and the first cooling water passage 11 is a rotary joint 21A provided on the roll shaft 14 at one end. The coolant is supplied through the coolant and discharged through the rotary joint 21B provided at the roll shaft 14 at the other end to cool the outer surface of the roll 1, and the second coolant passage 11 is opposite to the above. Cooling the outer surface of the roll (1) while receiving and discharging the coolant in the direction, the effect of cooling the outer surface of the roll (1) uniformly in the circumferential direction and the longitudinal direction by forming the cooling water passage in the cross-flow flow shape It can be obtained, which is in contact with the galvanized steel sheet to prevent the phenomenon that the zinc powder adheres therefrom to improve the quality of the steel sheet as well as to prevent contamination of the roll.

상술한 바와같이 본 고안에 따른 2중 나선형 냉각수통로를 가지는 열변형 방지롤에 의하면, 고온의 강판과 접촉하는 롤의 외표면을 길이방향 및 원주방향으로 균일하게 냉각함에 의해 롤의 열변형 및 강판의 품질을 향상시킬 수 있는 우수한 효과를 가진다.According to the heat deformation preventing roll having a double spiral cooling water passage according to the present invention as described above, the heat deformation and the steel sheet of the roll by uniformly cooling the outer surface of the roll in contact with the hot steel sheet in the longitudinal direction and the circumferential direction It has an excellent effect to improve the quality of.

Claims (1)

내부의 냉각수 통로를 통해 냉각수를 공급함으로서 열변형이 방지되도록 된 열변형 방지롤에 있어서,In the heat deformation prevention roll to prevent heat deformation by supplying the cooling water through the internal coolant passage, 상기 냉각수 통로는 2중 나선형으로 이루어진 제1냉각수 통로(11)와 제2냉각수 통로(12)로 이루어지고, 상기 냉각수 통로(11)(12)의 각각에는 롤축(91)(92)에 각각 복수개씩 갖추어진 로터리조인트(21A)(21B)(22A)(22B)를 통해 서로 반대방향으로 냉각수가 공급되어 배출됨을 특징으로 하는 2중 나선형 냉각수통로를 가지는 열변형 방지롤.The cooling water passage includes a first cooling water passage 11 and a second cooling water passage 12 formed in a double spiral, and each of the cooling water passages 11 and 12 has a plurality of roll shafts 91 and 92, respectively. And a double spiral cooling water passage, wherein the cooling water is supplied to and discharged in opposite directions through the rotary joints 21A, 21B, 22A, and 22B.
KR2019980022992U 1998-11-24 1998-11-24 Heat deformation prevention roll with double spiral cooling water passage KR20000010627U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101442647B1 (en) * 2013-01-24 2014-09-23 한국기계연구원 Swirling nozzle
KR101625802B1 (en) * 2015-05-28 2016-06-07 금오공과대학교 산학협력단 Air purifying apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101442647B1 (en) * 2013-01-24 2014-09-23 한국기계연구원 Swirling nozzle
KR101625802B1 (en) * 2015-05-28 2016-06-07 금오공과대학교 산학협력단 Air purifying apparatus

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