KR19980011943U - Cooling water spraying device for temperature control of hot rolled steel sheet - Google Patents
Cooling water spraying device for temperature control of hot rolled steel sheet Download PDFInfo
- Publication number
- KR19980011943U KR19980011943U KR2019960025476U KR19960025476U KR19980011943U KR 19980011943 U KR19980011943 U KR 19980011943U KR 2019960025476 U KR2019960025476 U KR 2019960025476U KR 19960025476 U KR19960025476 U KR 19960025476U KR 19980011943 U KR19980011943 U KR 19980011943U
- Authority
- KR
- South Korea
- Prior art keywords
- cooling water
- steel sheet
- injection
- hot rolled
- temperature
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 239000000498 cooling water Substances 0.000 title claims abstract description 56
- 238000005507 spraying Methods 0.000 title claims abstract description 14
- 238000002347 injection Methods 0.000 claims abstract description 68
- 239000007924 injection Substances 0.000 claims abstract description 68
- 239000002826 coolant Substances 0.000 claims abstract description 32
- 239000007921 spray Substances 0.000 claims abstract description 28
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0233—Spray nozzles, Nozzle headers; Spray systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
본 고안은 열연강판의 판폭방향의 온도편차에 대응하여 냉각수 분사량을 자동으로 조절함으로서 열연강판을 균일하게 냉각시키도록 된 열연강판의 온도제어를 위한 냉각수분사장치에 관한 것으로, 열간압연되어지는 열연강판의 압연온도 및 권취온도를 통판중에 냉각 제어하기 위하여 압연기 출측에서 냉각수를 분사하는 냉각수 분사장치에 있어서, 강판으로 냉각수를 분사하도록 된 냉각수분사구(15)를 형성한 케이싱(1)(2);과, 상기 케이싱(1)(2)의 내부공간에 회전가능하도록 수용되고, 강판의 폭방향에 대하여 다른 양의 냉각수를 분사하도록 된 서로 다른 분사구를 원주방향에 다수개 형성하며, 냉각수공급호스(31)에 연결된 분사노즐(17);을 포함하며, 상기 강판의 폭방향 온도편차에 따라 분사노즐(17)의 분사구중 어느 하나만이 케이싱(1)(2)의 냉각수 분사구(15)를 통하여 냉각수를 분사함을 특징으로 한다.The present invention relates to a cooling water spraying device for controlling the temperature of a hot rolled steel sheet to uniformly cool the hot rolled steel sheet by automatically adjusting the amount of cooling water sprayed corresponding to the temperature deviation of the hot rolled sheet in the width direction of the hot rolled steel sheet. A cooling water injector for injecting cooling water from the rolling mill exit side in order to control cooling of the rolling temperature and the coiling temperature of the sheet through the casing, comprising: a casing (1) (2) having a cooling water injection port (15) configured to spray cooling water onto a steel sheet; And a plurality of different injection holes accommodated in the inner space of the casing (1) 2 so as to be rotatable, and injecting different amounts of cooling water in the circumferential direction to spray different amounts of cooling water in the width direction of the steel plate, and the cooling water supply hose 31 And a spray nozzle (17) connected to the coolant of the casing (1) (2), including only one of the spray holes of the spray nozzle (17) according to the widthwise temperature deviation of the steel sheet. It is characterized in that the cooling water is injected through the injection port (15).
Description
본 고안은 열간압연되는 열연강판의 압연온도 및 권취온도를 제어하기 위하여 압연기 출측에서 냉각수를 분사하는 냉각수분사장치에 관한 것으로서, 보다 상세하게는 열연강판의 판폭방향의 온도편차에 대응하여 냉각수 분사량을 자동으로 조절함으로서 열연강판을 균일하게 냉각시키도록 된 열연강판의 온도제어를 위한 냉각수분사장치에 관한 것이다.The present invention relates to a cooling water spraying device for spraying the cooling water from the rolling mill exit side in order to control the rolling temperature and the coiling temperature of the hot rolled hot rolled steel sheet, and more specifically, the cooling water spraying amount corresponding to the temperature deviation of the plate width direction of the hot rolled steel sheet The present invention relates to a cooling water spraying apparatus for temperature control of a hot rolled steel sheet to automatically cool the hot rolled steel sheet by adjusting automatically.
종래에는 열간압연되어지는 열연강판의 압연온도 및 권취온도를 통판중에 냉각 제어하기 위하여 압연기 출측에서 냉각수를 분사하는 냉각수 분사장치의 냉각수 분사노즐이 통판되는 열연강판의 폭방향에 항상 일정한 양의 냉각수가 분사되어지도록 구성되어 있기 때문에, 열연강판의 판폭방향의 온도편차에 따른 냉각수 분사량은 조절이 불가능하다.Conventionally, in order to cool and control the rolling temperature and the coiling temperature of hot rolled hot rolled sheet steel sheet during the hot plate, a constant amount of coolant is always in the width direction of the hot rolled steel sheet through which the coolant spray nozzle of the coolant spray device sprays the coolant from the rolling mill exit Since it is comprised so that it may be injected, the cooling water injection quantity according to the temperature deviation of the plate width direction of a hot rolled sheet steel cannot be adjusted.
그러나, 실질적으로는 열연강판의 판폭방향에는 온도편차가 발생하기 나름이고 종래의 장치에 의하여는 판폭방향의 균일한 냉각이 불가능하여, 열연강판의 판폭방향에 발생한 온도편차에 의하여 열연강판의 강조직이 불균일하게 형성되어 강판의 품질을 저하시키는 문제점이 있었다.However, practically, the temperature deviation occurs in the plate width direction of the hot rolled steel sheet, and it is impossible to uniformly cool the plate width direction by the conventional apparatus, and thus the hot rolled steel sheet is emphasized by the temperature deviation generated in the plate width direction. This nonuniformity has a problem of lowering the quality of the steel sheet.
본 고안은 이러한 종래의 문제점을 해소하기 위하여 안출된 것으로서, 그 목적은 열간압연되어지는 열연강판의 압연온도 및 권취온도를 통판중에 냉각 제어하기 위하여 압연기 출측에서 분사되는 냉각수를 강판의 폭방향 온도편차에 대응하여 그 양이 조절되도록 함으로서, 강판을 폭방향에 대한 온도편차 없이 균일하게 냉각하여 제품의 품질을 향상시키도록 된 열연강판의 온도제어를 위한 냉각수분사장치를 제공함에 있다.The present invention is devised to solve such a conventional problem, and its purpose is to provide the cooling water sprayed from the exit side of the rolling mill to control the rolling temperature and the coiling temperature of the hot rolled steel sheet to be hot rolled in the sheet plate in the width direction of the steel sheet. By controlling the amount in response to the, to provide a cooling water injection for the temperature control of the hot-rolled steel sheet to improve the quality of the product by uniformly cooling the steel sheet without a temperature deviation in the width direction.
도 1은 본 고안에 따른 열연강판의 온도제어를 위한 냉각수분사장치1 is a cooling water spraying device for temperature control of a hot rolled steel sheet according to the present invention
도 2는 본 고안에 따른 냉각수분사장치를 도시한 분해사시도Figure 2 is an exploded perspective view showing a coolant injection unit according to the present invention
도 3은 본 고안에 따른 분사노즐을 도시한 단면상세도Figure 3 is a cross-sectional detail view showing a spray nozzle according to the present invention
도 4는 본 고안에 따른 분사노즐의 분사구 형상을 도시한 설명도이다.4 is an explanatory view showing the shape of the injection hole of the injection nozzle according to the present invention.
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
1,2... 케이싱1,2 ... casing
5 ... 구동모터5 ... drive motor
6... 캠 리미트스위치6 ... Cam limit switch
7... 타이밍 벨트7 ... timing belt
15... 냉각수 분사구15 ... coolant nozzle
17... 분사노즐17. Injection nozzle
20... 냉각수 공급구20 ... coolant supply port
21... 회전축21 ... axis of rotation
22... 수조22 ... fish tank
23,24,25,26,27 ... 분사구23,24,25,26,27 ... nozzle
31... 냉각수 공급호스31.Cooling water supply hose
상기 목적을 달성하기 위한 기술적인 구성으로서, 본 고안은 열간압연되어지는 열연강판의 압연온도 및 권취온도를 통판중에 냉각 제어하기 위하여 압연기 출측에서 냉각수를 분사하는 냉각수 분사장치에 있어서, 강판으로 냉각수를 분사하도록 된 냉각수분사구를 형성한 케이싱;과, 상기 케이싱의 내부공간에 회전가능하도록 수용되고, 강판의 폭방향에 대하여 다른 양의 냉각수를 분사하도록 된 서로 다른 분사구를 원주방향에 다수개 형성하며, 냉각수공급호스에 연결된 분사노즐;을 포함하며, 상기 강판의 폭방향 온도편차에 따라 분사노즐의 분사구중 어느 하나만이 케이싱의 냉각수 분사구를 통하여 냉각수를 분사함을 특징으로 하는 열연강판의 온도제어를 위한 냉각수분사장치를 마련함에 의한다.As a technical configuration for achieving the above object, the present invention is a cooling water injector for spraying the cooling water at the exit side of the rolling mill in order to cool and control the rolling temperature and the coiling temperature of the hot rolled steel sheet to be hot-rolled, the cooling water to the steel sheet A casing having a cooling water injection port configured to be sprayed; and a plurality of different injection holes accommodated in the inner space of the casing so as to spray different amounts of cooling water with respect to the width direction of the steel plate in the circumferential direction, And a spray nozzle connected to a coolant supply hose, wherein only one of the spray holes of the spray nozzle sprays the coolant through the coolant spray holes of the casing according to the widthwise temperature deviation of the steel sheet. By providing a coolant spray.
이하, 본 고안의 일실시예를 첨부된 도면에 의하여 보다 상세하게 설명한다.Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.
도 1은 본 고안에 따른 열연강판의 온도제어를 위한 냉각수분사장치를 도시한 외관 사시도이고, 도 2는 분해사시도로서, 열간압연되는 열연강판의 압연온도 및 권취온도를 통판중에 냉각제어하기 위한 대략의 구형으로 형성된 냉각수 분사노즐(17)이 갖추어지고, 이러한 냉각수 분사노즐(17)은 중공형으로 형성되어 냉각수를 일시로 저장하기 위한 공간인 수조(22)를 마련하여 도 3에 보다 상세하게 도시한 바와 같이 상부외측은 일정길이를 가지는 회전축(21)의 하단부를 나사결합으로 견고하게 고정하고, 하부측은 냉각수를 공급받기 위한 냉각수공급구(20)를 형성하며, 중앙부에는 도 4에 도시한 바와 같이 다수개의 분사구(23)(24)(25)(26)(27)를 형성하는 바, 하나의 분사구(23)는 중앙부의 분사폭이 좁고 외측으로 갈수록 분사폭이 증가하는 형상을 가짐으로서 중앙부보다는 양측으로 분사되는 냉각수의 양이 더 많도록 하고, 다른 분사구(24)는 도면상에서 왼쪽 단부로부터 오른쪽 단부로 갈수록 그 분사폭이 증가하는 형상을 가짐으로서 오른쪽으로 갈수록 분사되는 냉각수의 양이 더 많도록 하며, 다른 분사구(25)는 전반에 걸쳐 동일한 분사폭을 갖도록 형성함으로서 폭분사되는 냉각수의 양이 전폭에 걸쳐 균일하도록 하고, 다른 분사구(26)는 도면상에서 왼쪽 단부로부터 오른쪽 단부로 갈수록 그 분사폭이 감소하는 형상을 가짐으로서 오른쪽으로 갈수록 분사되는 냉각수의 양이 더 적도록 하며, 다른 분사구(27)는 양측단부로부터 중앙부로 갈수록 그 분사폭이 커지는 형상을 가짐으로서 중앙으로 갈수록 분사되는 냉각수의 양이 더 많아지도록 한다. 물론, 상기 분사구(27)는 분사노즐(18)의 원주방향에 대하여 대략 60℃ 의 간격을 가지도록 위치하고, 이러한 분사구가 형성되지 않은 부분에는 냉각수의 분사를 차단하도록 된 차단부(미도시)가 형성된다. 또한, 상기 분사노즐(17)은 그 형상이 중공의 구형으로 형성되어 그 제작이 곤란하게 되므로, 상부케이싱(18)과 하부케이싱(19)으로 별도로 제작하여 나사결합등으로 서로 고정되게 하는 것이 바람직하다.1 is an external perspective view showing a coolant spraying device for temperature control of a hot rolled steel sheet according to the present invention, and FIG. 2 is an exploded perspective view for roughly controlling the rolling temperature and the coiling temperature of a hot rolled hot rolled steel sheet in a sheet plate. Cooling water spray nozzle 17 formed in a spherical shape of the cooling water injection nozzle 17 is formed in a hollow shape to provide a water tank 22, which is a space for temporarily storing the cooling water, as shown in more detail in FIG. As described above, the upper outer side is firmly fixed to the lower end of the rotating shaft 21 having a predetermined length by screwing, and the lower side forms a cooling water supply port 20 for receiving the cooling water. Likewise, a plurality of injection holes 23, 24, 25, 26, 27 are formed, and one injection hole 23 has a shape in which the injection width of the central portion is narrow and the injection width increases toward the outside. The amount of coolant injected to both sides is greater than that of the central portion, and the other injection hole 24 has a shape in which the injection width increases from the left end to the right end in the drawing, so that the amount of coolant injected toward the right is greater. The other injection holes 25 are formed to have the same injection width throughout, so that the amount of the cooling water sprayed is uniform throughout the entire width, and the other injection holes 26 are formed from the left end to the right end in the drawing. As the width of the spray decreases, the amount of coolant injected is decreased toward the right side, and the other injection holes 27 have a shape in which the spray width increases toward both sides from the both ends to the center. Make more of it. Of course, the injection holes 27 are positioned to have an interval of approximately 60 ° C with respect to the circumferential direction of the injection nozzle 18, and a block portion (not shown) to block the injection of the coolant is provided at a portion where such injection holes are not formed. Is formed. In addition, since the injection nozzle 17 is formed in a hollow spherical shape is difficult to manufacture, it is preferable to separately manufacture the upper casing 18 and the lower casing 19 to be fixed to each other by screwing or the like. Do.
그리고, 상기 분사노즐(17)은 상부케이싱(1)과 하부케이싱(2)에 의하여 마련된 내부공간으로 수용되고, 상기 상부케이싱(1)은 회전축(21)이 관통되는 구멍(1a)을 형성하여 분사노즐(17)을 수용하는 경우에 그 회전축(21)의 상단부가 외측으로 돌출하며, 이러한 회전축(21)의 돌출된 상단부는 커플링(16)에 의하여 구동모터(5)에 연결된다. 이때 상기 커플링(16)은 회전축(21)의 돌출부와 구동모터(5)의 연결부를 통하여 냉각수가 누설되지 않도록 하면서 회전축(21)이 회전가능하도록 한다. 또한, 상기 상부케이싱(1)과 하부케이싱(2)의 각각의 상단부와 하단부에 마련된 플랜지(3)(4)에 체결되는 볼트(11)와 너트(12)에 의하여 서로 결합되고, 이때 미도시된 가스켓등으로 상기 상부케이싱(1)과 하부케이싱(2)의 접촉면에서 발생할 냉각수의 누설을 방지하도록 한다.The injection nozzle 17 is accommodated in an inner space provided by the upper casing 1 and the lower casing 2, and the upper casing 1 forms a hole 1a through which the rotating shaft 21 penetrates. When accommodating the injection nozzle 17, the upper end of the rotary shaft 21 protrudes outward, and the protruded upper end of the rotary shaft 21 is connected to the drive motor 5 by the coupling 16. At this time, the coupling 16 allows the rotation shaft 21 to be rotatable while preventing the cooling water from leaking through the protrusion of the rotation shaft 21 and the connection portion of the driving motor 5. In addition, the upper casing 1 and the lower casing 2 are coupled to each other by a bolt 11 and a nut 12 fastened to the flanges 3 and 4 provided on the upper and lower ends, respectively. In order to prevent leakage of the coolant to be generated at the contact surface of the upper casing 1 and the lower casing 2 with the used gasket.
상기 하부케이싱(2)의 상단부에는 일정길이를 가지는 요홈 형상의 냉각수 분사구(15)를 형성하는 바, 이러한 냉각수 분사구(15)에는 상기 분사노즐(17)의 분사구(23)(24)(25)(26)(27)의 어느하나가 위치하도록 하고, 하부케이싱(2)의 하단부에는 상기 분사노즐(17)의 냉각수공급구(20)와 연결되는 급수관(13)을 형성하며, 상기 급수관(13)은 죠인트(Joint)(14)를 매개로 냉각수 공급호스(31)와 연결된다.The upper portion of the lower casing (2) is formed in the coolant injection port 15 of the groove shape having a predetermined length, the cooling water injection port 15, the injection port 23, 24, 25 of the injection nozzle 17 Any one of (26) and (27) is positioned, and a water supply pipe 13 connected to the cooling water supply port 20 of the injection nozzle 17 is formed at the lower end of the lower casing 2, and the water supply pipe 13 ) Is connected to the coolant supply hose 31 via a joint (14).
또한, 상기 모터(5)의 회전축(5a)은 타이밍벨트(Timming Belt)(7)를 매개로 캠 리미트스위치(Cam Limit Switch)(6)와 연결되는 바, 이는 모터(5)의 회전에 의하여 분사노즐(17)이 회전하는 경우에 상기 분사노즐(17)의 분사구(23)(24)(25)(26)(27) 및 차단부의 어느하나가 하부케이싱(2)의 냉각수 분사구(15)와 동일한 위치에 있도록 하여 냉각수가 상기 분사구(23)(24)(25)(26)(27)의 어느 하나와 냉각수 분사구(15)를 통하여 외측으로 분사되도록 하거나 차단부에 의하여 냉각수가 외측으로 분사되지 않도록 하게 하고, 이를 위하여 상기 캠 리미트스위치(6)는 미도시되고 상기 모터(5)를 제어하도록 된 제어부에 전기적으로 연결되어, 캠 리미트스위치(6)에 의한 노즐(17)의 상태(즉, 분사구(23)(24)(25)(26)(27)의 위치)와 모터(5)의 구동을 연관시켜 제어하도록 하는 것은 물론, 상기 제어부는 본 고안에 따른 냉각수분사장치를 통과한 열연강판의 폭방향에 대한 온도편차를 감지하도록 된 온도센서(미도시)로부터 강판의 온도정보를 제공받도록 하거나, 작업자등이 직접 측정한 온도를 제공받도록 하여도 좋다.In addition, the rotating shaft 5a of the motor 5 is connected to a cam limit switch 6 through a timing belt 7, which is caused by the rotation of the motor 5. When the spray nozzle 17 is rotated, one of the spray holes 23, 24, 25, 26, 27 and the blocking part of the spray nozzle 17 is the coolant spray hole 15 of the lower casing 2. Coolant is sprayed outward through any one of the jets 23, 24, 25, 26, and 27 and the coolant jets 15, or the coolant is jetted outwardly by the blocking unit. To this end, the cam limit switch 6 is not shown and is electrically connected to a control unit for controlling the motor 5, so that the state of the nozzle 17 by the cam limit switch 6 (i.e. , The position of the injection holes 23, 24, 25, 26, 27) and the driving of the motor 5 in association with the control, as well as the control unit To receive the temperature information of the steel sheet from the temperature sensor (not shown) to detect the temperature deviation in the width direction of the hot rolled steel sheet passed through the coolant spraying device according to the present invention, or to receive the temperature measured directly by the operator Also good.
그리고, 상기 상부케이싱(1)의 양측에는 본 장치를 강판냉각을 위한 설비에 장착하기 용이하도록 하는 체결구(8)(9)가 갖추어지는 바, 이러한 체결구(8)(9)는 각각 상부케이싱(1)과 하부케이싱(2) 및 주변구성요소들이 회전가능하도록 베어링(미도시)을 가지며, 또한 일측의 체결구(9)에는 나사결합에 의하여 상부케이싱(1)과 하부케이싱(2) 및 주변구성요소들이 회전되지 않도록 하는 고정너트부재(10)를 가짐으로서, 체결구(8)(9)에 의하여 냉각수 분사구(15)가 강판의 표면을 향하여 위치하도록 본 장치를 설비에 고정할 수 있고, 고정너트부재(10)에 의하여 상기 냉각수 분사구(15)에 의하여 분사되어지는 냉각수의 분사각도를 조절할 수도 있게 된다.And, on both sides of the upper casing (1) is provided with fasteners (8) (9) to facilitate the mounting of the device to the equipment for cooling the steel sheet, these fasteners (8) (9) are each upper The casing 1 and the lower casing 2 and the peripheral components have a bearing (not shown) so as to be rotatable, and the fastener 9 on one side is screwed to the upper casing 1 and the lower casing 2. And a fixing nut member 10 which prevents the peripheral components from rotating, thereby fastening the apparatus to the installation so that the cooling water injection hole 15 is positioned toward the surface of the steel sheet by the fasteners 8 and 9. In addition, it is possible to adjust the injection angle of the coolant is injected by the cooling water injection port 15 by the fixing nut member (10).
상기한 구성으로 이루어진 본 고안의 장치는, 열간압연중 또는 압연완료된 후에 측정되는 열연강판이 폭방향에 대한 온도를 전송 또는 작업자에 의하여 입력받은 제어부는 그 강판의 폭방향 온도편차에 따라 구동모터(5)를 회전시켜 분사노즐(17)의 분사구(23)(24)(25)(26)(27)의 어느 하나 또는 차단부가 하부케이싱(2)의 냉각수 분사구(15)에 위치하도록 하고, 이러한 상태에서 냉각수를 강판에 분사하게 된다(물론, 차단부가 냉각수 분사구(15)에 위치하는 경우에는 냉각수가 분사되지 않는다). 통판되어지는 열연강판의 폭방향 온도편차에 따라 냉각수의 분사량을 제어하는 방법은, 강판의 중앙부의 온도에 비하여 양측 단부의 온도가 더 높게 되면 분사구(23)와 냉각수 분사구(15)의 위치를 일치시킴으로서 냉각수가 강판의 중앙부보다는 양측 단부에 보다 많이 분사되어 강판의 폭방향 온도편차를 감소시키게 되고, 강판의 일측단부가 다른 부분보다 온도가 높거나 낮게 되면 분사구(24) 또는 (26)이 냉각수 분사구(15)와 일치되는 위치에 있도록 함으로서 온도가 높은 단부측으로 더 많은 양의 냉각수를 분사하여 강판의 폭방향 온도편차를 감소시키게 되며, 강판의 폭방향 온도편차가 없는 경우에는 분사구(25)가 냉각수 분사구(15)와 일치되게 하여 정상적으로 냉각수를 분사하고, 강판의 중앙부의 온도에 비하여 양측 단부의 온도가 더 낮게 되면 분사구(27)와 냉각수 분사구(15)의 위치를 일치시킴으로서 냉각수가 강판의 양측 단부보다는 중앙부에 보다 많이 분사되어 강판의 폭방향 온도편차를 감소시키게 되며, 또한 냉각수의 분사가 불필요한 경우에는 차단부가 냉각수 분사구(15)를 막도록 하는 것이다.In the device of the present invention having the above-described configuration, the hot rolled steel sheet measured after hot rolling or after rolling is completed is transmitted to a controller in a width direction or inputted by an operator according to the width direction temperature deviation of the steel plate driving motor ( 5) so that any one of the injection holes 23, 24, 25, 26 and 27 of the injection nozzle 17 or the blocking portion is located at the cooling water injection hole 15 of the lower casing 2, In the state, the coolant is sprayed onto the steel sheet (of course, the coolant is not sprayed when the blocking portion is located at the coolant spray port 15). In the method of controlling the injection amount of the cooling water according to the widthwise temperature deviation of the hot rolled steel sheet, when the temperature at both ends is higher than the temperature at the center of the steel sheet, the positions of the injection port 23 and the cooling water injection port 15 coincide with each other. When the cooling water is injected to both ends of the steel sheet more than the center portion of the steel sheet to reduce the width difference in the width direction of the steel sheet, and when one side of the steel sheet is higher or lower than the other portion, the injection hole 24 or 26 is a cooling water injection hole By maintaining the position in accordance with the (15) by spraying a larger amount of cooling water toward the end of the high temperature to reduce the width difference in the width direction of the steel sheet, if there is no width difference in the width direction of the steel sheet, the injection port 25 is When the cooling water is sprayed normally in accordance with the injection port 15, and the temperature at both ends is lower than the temperature at the center of the steel sheet By matching the positions of the sand dune 27 and the coolant injection port 15, the coolant is sprayed more at the center portion than at both ends of the steel sheet to reduce the width difference in the width direction of the steel sheet. It is to block the injection hole (15).
상술한 바와 같이 본 고안에 따른 열연강판의 온도제어를 위한 냉각수분사장치에 의하면, 강판으로 냉각수를 분사하는 분사구의 형상을 다양하게 형성하고, 강판의 폭방향 온도분포에 따라 이들 분사구의 어느 하나를 통하여 분사되는 냉각수가 강판을 냉각하도록 하여, 강판의 폭방향 온도분포가 발생하지 않게 되며, 따라서 강판의 폭방향 온도분포에 의한 강판 품질향상을 기대할 수 있다.As described above, according to the cooling water spraying device for controlling the temperature of the hot rolled steel sheet according to the present invention, various shapes of the spray holes for spraying the cooling water into the steel sheets are formed, and any one of these spray holes according to the widthwise temperature distribution of the steel sheets. The cooling water sprayed through the cooling the steel sheet, so that the temperature distribution in the width direction of the steel sheet does not occur, thus improving the quality of the steel sheet by the width direction temperature distribution of the steel sheet.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960025476U KR200205994Y1 (en) | 1996-08-23 | 1996-08-23 | Cooling water jet device for temperature control of hot coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960025476U KR200205994Y1 (en) | 1996-08-23 | 1996-08-23 | Cooling water jet device for temperature control of hot coil |
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| KR19980011943U true KR19980011943U (en) | 1998-05-25 |
| KR200205994Y1 KR200205994Y1 (en) | 2000-12-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100402133B1 (en) * | 1999-12-23 | 2003-10-17 | 주식회사 포스코 | Apparatus for controlling width-directional temperature of hot plate |
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| KR20020020107A (en) * | 2000-09-08 | 2002-03-14 | 이구택 | Injection Volume Measuring apparatus of Cooling Water for Rolling Steel plate |
| KR100878651B1 (en) * | 2002-08-08 | 2009-01-15 | 주식회사 포스코 | A Coil Temperature control Apparatus of Short Length |
| KR101140611B1 (en) | 2010-04-29 | 2012-06-14 | 현대제철 주식회사 | Temp core for rolling process |
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1996
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100402133B1 (en) * | 1999-12-23 | 2003-10-17 | 주식회사 포스코 | Apparatus for controlling width-directional temperature of hot plate |
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