JPS60206517A - Cooling device of traveling high temperature material - Google Patents
Cooling device of traveling high temperature materialInfo
- Publication number
- JPS60206517A JPS60206517A JP6286184A JP6286184A JPS60206517A JP S60206517 A JPS60206517 A JP S60206517A JP 6286184 A JP6286184 A JP 6286184A JP 6286184 A JP6286184 A JP 6286184A JP S60206517 A JPS60206517 A JP S60206517A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- cooling fluid
- headers
- line
- cooling device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明は、熱間圧延後の鋼板等の高温材料を走行中に冷
却する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an apparatus for cooling high-temperature materials such as hot-rolled steel plates during running.
（ロ）従来技術
従来、熱間圧延後の鋼板等の高温材料を走行中に冷却す
るラインにおいては、第１図に示すように、ラインの下
側に配列した複数個の冷却ヘッダｌかも水等の冷却流体
２を材料３の下面に吹き付けて、材料を冷却している場
合がある。(B) Prior Art Conventionally, in a line that cools high-temperature materials such as hot-rolled steel plates while running, as shown in Figure 1, a plurality of cooling headers arranged at the bottom of the line are used to cool down hot materials such as hot rolled steel plates. In some cases, the material is cooled by spraying a cooling fluid 2 such as the above onto the lower surface of the material 3.
この場合、冷却ヘッダ１かも噴射された冷却流体は、材
料がまだ来ない部分では、材料の走行ラインより高く上
がり重力により落下するので、材料の上面に、冷却流体
が落下し、このため、材料上面から冷却されることにな
る。In this case, the cooling fluid injected by the cooling header 1 rises higher than the material travel line and falls due to gravity in areas where the material has not yet arrived. It will be cooled from the top.
この落下した冷却流体は、材料上面上で不均一に分布す
るため、材料を不均一に冷却することになる。不均一な
冷却は材料の収縮の不均一による材料平担度の悪下およ
び材料性能の不均一をもたらす。This fallen cooling fluid is unevenly distributed on the upper surface of the material, resulting in non-uniform cooling of the material. Non-uniform cooling results in poor material flatness and non-uniform material performance due to non-uniform shrinkage of the material.
さらに、冷却流体の噴射角度θおよび材料の相対速度に
より、材料の先端部または後端部が過冷却となる。Furthermore, depending on the injection angle θ of the cooling fluid and the relative velocity of the material, the leading or trailing end of the material becomes supercooled.
例えば、第２図に示すように、冷却ヘッダ１から噴射さ
れる冷却流体２の噴射角度をＱ、噴射流量をＱ、噴射飛
行距離をり、噴射滞空時間をＴ、そして材料の走行速度
をＶとそれぞれ定義したとき、次の過冷却が生じる。For example, as shown in FIG. 2, the injection angle of the cooling fluid 2 injected from the cooling header 1 is Q, the injection flow rate is Q, the injection flight distance is T, the injection residence time is T, and the traveling speed of the material is V. When defined respectively, the following supercooling occurs.
ｆｌｌＶ −置のとき：材料先端部の過冷却（２１Ｖ
−Ｔ＜Ｌのとき：材料後端部の過冷却この過冷却を防止
するために、従来では邪魔板方法や０Ｎ−ＯＦＦタイミ
ング方法等がとられている。邪魔板方法は、各冷却ヘッ
ダのノズル伺近に邪魔板を移動自在に設けて、冷却が必
要ないときは邪魔板を移動させて冷却水を遮る方式をと
っている。この方法は完全に水乗りを防止することがで
きるが、邪魔板の可動部分の保守・点検に人手を要する
。fllV - position: supercooling of the tip of the material (21V
- When T<L: Overcooling of the rear end of the material In order to prevent this overcooling, a baffle plate method, an ON-OFF timing method, etc. have conventionally been used. The baffle plate method uses a method in which a baffle plate is movably provided near the nozzle of each cooling header, and when cooling is not required, the baffle plate is moved to block the cooling water. Although this method can completely prevent water riding, it requires manpower to maintain and inspect the movable parts of the baffle plate.
一方、０Ｎ−ＯＦＦタイミング方法は、各冷却ヘッダを
必要に応じて０Ｎ−ＯＦＦ制御する方式をとっている。On the other hand, the ON-OFF timing method employs a system in which each cooling header is controlled ON-OFF as necessary.
この方法も完全に水乗りを防止することができるが、制
御ゾーンが細分化されるのでその制御回路が複雑になる
こと、および応答特性に問題があることなどの欠点があ
る。Although this method can also completely prevent water riding, it has drawbacks such as a complicated control circuit because the control zone is subdivided, and problems with response characteristics.
（ハ）発明の目的
本発明の目的は、簡単な装置によって冷却流体の水乗り
を完全に防止することができる熱間圧延後の走行高温材
料の冷却装置を得ることにある。(c) Object of the Invention An object of the present invention is to provide a cooling device for running high-temperature material after hot rolling, which can completely prevent water riding of the cooling fluid with a simple device.
に）発明の構成
本発明の走行高温材料の冷却装置は、熱間圧延後の走行
高温材料の下面に冷却流体を吹き付けて該材料を冷却す
る材料冷却ラインにおいて、該ラインに関して下側に配
列されていて冷却流体を材料の下面に所定の角度で吹き
付ける複数筒の冷却ヘッダと、前記ラインに関して上側
に配列されかつ対応する各冷却ヘッダに対向されていて
該ヘッダから吹き出された冷却流体をそれぞれ受ける樋
とからなって℃・る。B) Structure of the Invention The cooling device for a running high-temperature material of the present invention is arranged below with respect to the material cooling line that sprays a cooling fluid onto the lower surface of the running high-temperature material to cool the material after hot rolling. a plurality of cooling headers arranged above with respect to the lines and facing each corresponding cooling header to receive the cooling fluid blown out from the headers; It consists of a gutter.
次に、第３図から第５図までを参照して本発明の冷却装
置の具体的構成について説明する。Next, the specific configuration of the cooling device of the present invention will be explained with reference to FIGS. 3 to 5.
図示するように、冷却ヘッダ１に対向させて高温材料３
の搬送ローラ５に関して上側にそれぞれ樋４を設ける。As shown, a high temperature material 3 is placed opposite the cooling header 1.
A gutter 4 is provided above the conveyance roller 5, respectively.
樋４はフード４１とトレイ４２とからできている。フー
ド４１は流体２の飛行を遮るとともに飛散を防止する。The gutter 4 is made up of a hood 41 and a tray 42. The hood 41 blocks the flight of the fluid 2 and prevents it from scattering.
フード４１によって集められた流体はトレイ４２に受げ
られ、 ｔトレイ４２の両端から排水溝６に落される。The fluid collected by the hood 41 is received by the tray 42 and dropped into the drain 6 from both ends of the tray 42.
トレイ４２は第４図に示すように、中央部から両端に向
かって下降する傾斜を付けておくことが好ましい。As shown in FIG. 4, the tray 42 is preferably sloped downward from the center toward both ends.
第３図に示すように、高温材料３から外れて上方へ噴出
した流体２は樋４に受けられ、材料３上へは落下しない
。As shown in FIG. 3, the fluid 2 released from the high-temperature material 3 and jetted upward is received by the gutter 4 and does not fall onto the material 3.
なお、冷却ヘッダ１はハンドル１１によって流体２の噴
射角度θが調整される。噴射角度θが一旦設定されると
、通常はその状態で固定される。したがって、樋４の位
置も冷却ヘッダ１の噴射角度θに合せて調整された後は
、その位置に固定される。Note that in the cooling header 1, the injection angle θ of the fluid 2 is adjusted by the handle 11. Once the injection angle θ is set, it is usually fixed in that state. Therefore, after the position of the gutter 4 is also adjusted according to the injection angle θ of the cooling header 1, it is fixed at that position.
（ホ）実施例
冷却流体を冷却水としたときの材料走行方向前方端面か
らの距離と冷却水の材料上への落下量との関係を調査し
た結果を第６図および第７図に示す。第６図は従来の冷
却装置による場合を、また、第７図は本発明の冷却装置
による場合をそれぞれ示す。(e) Example When cooling water is used as the cooling fluid, the results of investigating the relationship between the distance from the front end face in the running direction of the material and the amount of cooling water falling onto the material are shown in FIGS. 6 and 7. FIG. 6 shows a case using a conventional cooling device, and FIG. 7 shows a case using a cooling device of the present invention.
（へ）効果
本発明の冷却装置によれば、材料走行方向前方端面の影
響範囲を４００間から１００朋以内に改善し、また、走
行方向前方端面における落下流量を４０−ｅ ／ ｍｉ
ｎ −ｍ２から１０１３ ／ ｍｉｎ ・ｍ２に改善す
ることができた。(f) Effects According to the cooling device of the present invention, the influence range of the front end face in the running direction of the material is improved from between 400 to within 100 m, and the falling flow rate at the front end face in the running direction is improved to 40-e/mi.
It was possible to improve the speed from n-m2 to 1013/min·m2.
第１図は従来の冷却装置の概略動作説明図。第２図は冷
却ヘッダから噴射される冷却流体と加熱材料との関係を
示す説明図。第３図は本発明の冷却装置の概略動作説明
図。第４図は本発明の冷却装置の正面図。第５図は第４
図のＶ−Ｖ線からみた横断面図。第６図は従来の冷却装
置による冷却水落下流量と被冷却材走行方向前方端面か
らの距離との関係について調べた結果を示すグラフ。第
７図は本発明の冷却装置による第６図と同様な図面。
１：冷却ヘッダ ２：冷却流体
３：高温材料 ４：樋
５：搬送ローラ ６：排水溝
第１図
Ｔ 第２図
第４図
核沖打パ
フ図
＃ Ａ
θFIG. 1 is a schematic explanatory diagram of the operation of a conventional cooling device. FIG. 2 is an explanatory diagram showing the relationship between the cooling fluid injected from the cooling header and the heating material. FIG. 3 is a schematic explanatory diagram of the operation of the cooling device of the present invention. FIG. 4 is a front view of the cooling device of the present invention. Figure 5 is the 4th
A cross-sectional view taken along the line V-V in the figure. FIG. 6 is a graph showing the results of an investigation into the relationship between the falling flow rate of cooling water and the distance from the front end face in the running direction of the cooled material in a conventional cooling device. FIG. 7 is a drawing similar to FIG. 6 of the cooling device of the present invention. 1: Cooling header 2: Cooling fluid 3: High-temperature material 4: Gutter 5: Conveying roller 6: Drainage groove Figure 1 T Figure 2 Figure 4 Nucleus offshore puff diagram # A θ
Claims (1)
て該材料を冷却する材料冷却ラインにおいて、該ライン
に関して下側に配列されていて冷却流体を材料の下面に
所定の角度で吹き付ける複数個の冷却ヘッダと、前記ラ
インに関して上側に配列されかつ対応する各冷却ヘッダ
に対向されていて該ヘッダから吹ぎ出された冷却流体を
それぞれ受ける樋とからなる走行高温材料の冷却装置。In a material cooling line that sprays a cooling fluid onto the lower surface of a running high-temperature material after hot rolling to cool the material, a plurality of cooling fluids that are arranged below the line and spray the cooling fluid onto the lower surface of the material at a predetermined angle. cooling headers; and a gutter arranged above with respect to the line and facing each corresponding cooling header to receive cooling fluid blown out from the header.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6286184A JPS60206517A (en) | 1984-03-30 | 1984-03-30 | Cooling device of traveling high temperature material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6286184A JPS60206517A (en) | 1984-03-30 | 1984-03-30 | Cooling device of traveling high temperature material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60206517A true JPS60206517A (en) | 1985-10-18 |
Family
ID=13212496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6286184A Pending JPS60206517A (en) | 1984-03-30 | 1984-03-30 | Cooling device of traveling high temperature material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60206517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0464890A1 (en) * | 1990-06-27 | 1992-01-08 | Hoogovens Groep B.V. | Cooling system for cooling a moving metal strip |
| JP2014508045A (en) * | 2011-03-18 | 2014-04-03 | ノベリス・インコーポレイテッド | Method and apparatus for removing coolant from a moving strip of metal |
-
1984
- 1984-03-30 JP JP6286184A patent/JPS60206517A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0464890A1 (en) * | 1990-06-27 | 1992-01-08 | Hoogovens Groep B.V. | Cooling system for cooling a moving metal strip |
| US5186018A (en) * | 1990-06-27 | 1993-02-16 | Hoogovens Groep Bv | Cooling system for cooling a moving metal strip |
| JP2014508045A (en) * | 2011-03-18 | 2014-04-03 | ノベリス・インコーポレイテッド | Method and apparatus for removing coolant from a moving strip of metal |
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