JPS62297416A - Cooling header - Google Patents
Cooling headerInfo
- Publication number
- JPS62297416A JPS62297416A JP14058086A JP14058086A JPS62297416A JP S62297416 A JPS62297416 A JP S62297416A JP 14058086 A JP14058086 A JP 14058086A JP 14058086 A JP14058086 A JP 14058086A JP S62297416 A JPS62297416 A JP S62297416A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- header
- steel plate
- center
- angle
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- 239000000498 cooling water Substances 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/667—Quenching devices for spray quenching
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/573—Continuous furnaces for strip or wire with cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
本発明は、連鋳、熱間圧延、連続焼鈍など連続熱処理ラ
インにおける冷却ヘッダに関し、さらに詳しくは、被冷
却材の幅方向の冷却能力を可変とした冷却ヘッダの改善
に関する。Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a cooling header in a continuous heat treatment line such as continuous casting, hot rolling, and continuous annealing. This invention relates to an improvement in a cooling header with variable cooling capacity in the width direction.
鋼板、鋼帯を冷却するに際し、板前端部においては、板
中央部を冷却した水および空気等が流れてくるため、板
前端部を板中央部と同じ冷却能力で冷却すると板前端部
は中央部より冷却過剰となるために、従来から板幅方向
の冷却能力を変えて冷却している。When cooling a steel plate or steel strip, at the front edge of the plate, water and air that have cooled the center of the plate flow, so if the front edge of the plate is cooled with the same cooling capacity as the center of the plate, the front edge of the plate will cool down to the center. Conventionally, cooling is done by changing the cooling capacity in the width direction of the plate, as this leads to excessive cooling.
第７図は従来例の冷却ヘッダの説明図であり、（ａ）は
側面図、（ｂ）は正面図である。第７図に示す走行する
被冷却鋼板１３を冷却する冷却装置では次の技術手段が
採られていた。FIG. 7 is an explanatory diagram of a conventional cooling header, in which (a) is a side view and (b) is a front view. The cooling device for cooling the traveling steel plate 13 to be cooled shown in FIG. 7 employs the following technical means.
■第９図に示すようにヘッダ本体１を鋼板幅方向に４ｂ
、３ｂ、４ｂに分割し中央部と両端部では水量を別々に
制御することにより冷却へンダの幅方向の水量分布を第
８図に示すように、中央部に対して両端部を少なくする
。■ As shown in Figure 9, move the header body 1 4b in the width direction of the steel plate.
, 3b, and 4b, and by controlling the amount of water at the center and both ends separately, the water amount distribution in the width direction of the cooling solder is made smaller at both ends than at the center, as shown in FIG.
（郊冷却へツタ本体と連通ずる矩形筒状ノズルの開口部
のキャップを幅方向において調整する（￥３Ｈ昭５９
１７１７６１）。(Adjust the cap of the opening of the rectangular cylindrical nozzle that communicates with the ivy body in the width direction for cooling.
171761).
前記■による水俣制御手段では、各ノズルの水量調整に
多くの手間がかかるほか、水量分布は固定であった。ま
た■の手段では、中央部と両端部との水量調整は任意に
できるがヘッダ本体が複雑となるか、或いは開口部のギ
ャップｒＡ整装置が複雑となるという問題があった。With the Minamata control means according to item 1 above, it takes a lot of effort to adjust the water volume of each nozzle, and the water volume distribution is fixed. Further, with the method (2), although the amount of water at the center and both ends can be adjusted arbitrarily, there is a problem that the header body becomes complicated or the gap rA adjusting device at the opening becomes complicated.
本発明は以上の問題点を解決するもので、鋼板の幅方向
の冷却能力を簡単に調節でき、より一層の均一冷却がで
きる冷却ヘッダを提供することを目的とする。The present invention solves the above problems, and aims to provide a cooling header that can easily adjust the cooling capacity of a steel plate in the width direction and achieve more uniform cooling.
本発明は、上述のような従来技術の問題点を解決するこ
とを目的とするもので、被冷却鋼板に相対して被冷却鋼
板の走行方向に直角に設けた冷却ヘッダに適用され次の
技術手段を採った。すなわち、
■冷却ヘッダ本体の複数個のノズルを鋼板幅方向中央部
分と両端部分に区分し、両端部分のノズル群は中央部分
のノズル群の取付位置に対し所定のヘッダ中心角度ずら
せて取付けた。The present invention aims to solve the problems of the prior art as described above, and is applied to a cooling header provided opposite to a steel plate to be cooled at right angles to the running direction of the steel plate to be cooled. I took measures. That is, (1) the plurality of nozzles of the cooling header main body were divided into a central part and both end parts in the width direction of the steel plate, and the nozzle groups at both end parts were installed at a predetermined header center angle shifted from the installation position of the nozzle group at the central part.
■冷却ヘッダ本体を前記所定の中心角度回動自在とした
。(2) The cooling header body is rotatable at the predetermined center angle.
第１図に本発明の一実施例の冷却ヘッダ本体を示す、（
ａ）は正面図、（ｂ）は（ａ）のＡ−Ａ矢視図である。FIG. 1 shows a cooling header main body according to an embodiment of the present invention.
(a) is a front view, and (b) is a view taken along the line A-A in (a).
また第２図は本発明の一実施例の冷却ヘッダを示し、（
ａ）は側面図、（ｂ）は正面図である。Further, FIG. 2 shows a cooling header according to an embodiment of the present invention, (
A) is a side view, and (b) is a front view.
図に示すように、冷却ヘッダ本体１に配設するノズル２
を鋼板幅方向中央部分のノズル群３と両端部分のノズル
群４とに分け１両者は所定のヘッダ中心角度θずらして
設けである。さらに冷却ヘッダ本体１は角度０回動自在
な回動装置５を備えている。As shown in the figure, a nozzle 2 disposed on the cooling header body 1
is divided into a nozzle group 3 at the center in the width direction of the steel plate and a nozzle group 4 at both ends, both of which are offset by a predetermined header center angle θ. Furthermore, the cooling header main body 1 is provided with a rotation device 5 that can freely rotate at zero angle.
第４図は本発明の原理説明図である。ノズル２から噴出
される水の噴出速度をＶｅとすると被冷却鋼板１３への
衝突速度Ｖａは次の（１）式で表わされる。FIG. 4 is a diagram explaining the principle of the present invention. When the jetting speed of water jetted from the nozzle 2 is Ve, the collision speed Va against the steel plate 13 to be cooled is expressed by the following equation (1).
Ｖ ａ＝Ｖ ｅ １１ｆ （ｈ） −−（１）
すなわち衝突速度Ｖａは水の噴出速度Ｖｅと、ノズル２
と鋼板１３との距離゛ｌにより決まる。V a=V e 11f (h) --(1)
That is, the collision speed Va is equal to the jetting speed Ve of water and the nozzle 2.
It is determined by the distance l between the steel plate 13 and the steel plate 13.
ここで水の噴出速度Ｖｅが一定の場合、距＃ｈが大きく
なる程ｆ（ｈ）が小さくなるので衝突速度Ｖａは小さく
なる。Here, when the water ejection speed Ve is constant, the larger the distance #h, the smaller f(h) becomes, and therefore the collision speed Va becomes smaller.
一般に流体を吹付けて冷却する場合、その冷却能力（熱
伝達係数）を決める因子は多数あるが。Generally, when cooling by spraying fluid, there are many factors that determine the cooling capacity (heat transfer coefficient).
衝突速度Ｖａがその大きな因子となることは知られてい
る。つまり、他の条件は同じでも距離りを変化すれば同
じ噴出速度Ｖｅで噴出しても衝突速度Ｖａが変わり、冷
却能力を調節することができる。It is known that the collision speed Va is a major factor. In other words, even if other conditions are the same, if the distance is changed, the collision speed Va will change even if the jet is ejected at the same jet speed Ve, and the cooling capacity can be adjusted.
そこで本発明の冷却ヘッダにおいては冷却ヘッダ本体１
は鋼板幅方向中央部分のノズル群に対し両端部分のノズ
ル群の取付位置を所定のヘッダ中心角度０ずらしており
、さらに角度０回動自在であるため、冷却ヘッダ本体ｌ
が中央部分のノズル群３と両端部分のノズル群４で被冷
却鋼板１３までの距離りを変えることが可能となり、冷
却水を中央部分と両端部分で同一の噴出速度Ｖｅで噴出
しても、中央部分と両端部分では衝突速度Ｖ 、ａが磨
イに！、冷加イ耘力にか１律は六ことがでまる一層５図
に本発明の一実施例の冷却ヘッダ本体の回動状況図を示
す。Therefore, in the cooling header of the present invention, the cooling header main body 1
The mounting positions of the nozzle groups at both ends are shifted from the nozzle group at the center in the width direction of the steel plate by a predetermined header center angle of 0, and are also rotatable at an angle of 0, so that the cooling header body l
However, the distance to the steel plate 13 to be cooled can be changed by the nozzle group 3 at the center and the nozzle groups 4 at both ends. Collision velocity V and a are polished in the center and both ends! , cooling power, etc. There are six things in general. Figure 5 shows a rotation state diagram of the cooling header main body according to an embodiment of the present invention.
■中央部分のノズル群３と両端部分のノズル群４が第５
図（ａ）に示す位置の場合は、その冷却能力は第６図（
ａ）に示すように中央部分が最大となり両端部分が小さ
くなる。■Nozzle group 3 in the center and nozzle group 4 in both ends are the 5th
In the case of the position shown in Figure (a), the cooling capacity is as shown in Figure 6 (
As shown in a), the center portion is the largest, and both end portions are smaller.
■ノズル群の位置関係が第５図（Ｃ）の場合は冷却能力
は第６図（Ｃ）に示すように両端部分が最大となり中央
部分が小さくなる。(2) When the positional relationship of the nozzle group is as shown in FIG. 5(C), the cooling capacity is maximum at both ends and becomes smaller at the center, as shown in FIG. 6(C).
■ノズル群の位置関係が第５図（ｂ）の場合は冷却能力
は第６図（ｂ）に示すように中央部分、両端部分とも均
一となる。(2) When the positional relationship of the nozzle groups is as shown in FIG. 5(b), the cooling capacity is uniform in the center and both ends as shown in FIG. 6(b).
冷却ヘッダ本体１を角度０回動自在としたことにより、
中央部分と両端部分の冷却能力をある範囲で調節するこ
とが可能となった。By making the cooling header body 1 freely rotatable at an angle of 0,
It is now possible to adjust the cooling capacity of the center and both ends within a certain range.
第２図に示すように、冷却ヘッダ本体ｌを固定フレーム
６に軸受７によって所定角度０回動可能に取付け、冷却
ヘッダ本体ｌの一端外周面に冷却ヘッダ本体ｌの最大回
動量に見合った円弧状のラック８を取付け、この円弧状
のラック８と噛み合い回転力を伝達するラック９を油圧
シリンダ１０により駆動される駆動バー１１に固着する
。As shown in Fig. 2, the cooling header main body l is attached to the fixed frame 6 by a bearing 7 so that it can rotate by a predetermined angle, and a circle corresponding to the maximum rotation amount of the cooling header main body l is formed on the outer peripheral surface of one end of the cooling header main body l. An arc-shaped rack 8 is attached, and a rack 9 that meshes with the arc-shaped rack 8 and transmits rotational force is fixed to a drive bar 11 driven by a hydraulic cylinder 10.
１２は冷却ヘッダ本体１に冷却水を供給する給水バイブ
である。冷却水を冷却ヘッダ本体１の両側から給水する
場合は給水バイブ１２を冷却ヘッダ本体ｌの両側に取付
ける。12 is a water supply vibrator that supplies cooling water to the cooling header main body 1. When supplying cooling water from both sides of the cooling header body 1, water supply vibrators 12 are attached to both sides of the cooling header body 1.
本実施例の冷却ヘッダ本体ｌは第１図に示すようなノズ
ル２で構成したが、第３図に示すようなスリー２ト状ノ
ズルに構成してもよい。Although the cooling header main body l of this embodiment is constructed with the nozzle 2 as shown in FIG. 1, it may be constructed as a three-two nozzle as shown in FIG. 3.
本実施例ではノズルの取付位置は１段しかずらしていな
いが、その他の実施例（図示していない）として、複数
段としてもよい。In this embodiment, the mounting positions of the nozzles are shifted by only one stage, but in other embodiments (not shown), the mounting positions may be shifted in multiple stages.
いずれにしても、本実施例の如く複数個のノズルを鋼板
幅方向に３群に分割し、中央部分のノズル群３と両端部
分のノズル群４の取付は位置をずらせる必要がある。In any case, as in this embodiment, it is necessary to divide the plurality of nozzles into three groups in the width direction of the steel plate, and to deviate the mounting positions of the nozzle group 3 in the center and the nozzle groups 4 at both ends.
本発明の冷却へ一７グを使用することにより、同一の冷
却水噴出速度でも中央部分と両端部分て冷−却能力に差
を付けるとともに、その茂を調節することが可能となり
□、鋼板幅方向の均一冷却により一層の効果を奏する。By using the cooling water of the present invention, even if the cooling water jet speed is the same, it is possible to differentiate the cooling capacity between the center and both ends, and to adjust the thickness. Even more effective cooling is achieved by directional uniform cooling.
第１図は本発明の一実施例の冷却ヘッダ本体の説明図で
あり、（ａ）は正面図、（ｂ）は（ａ）のＡ−Ａ断面図
、第２図は本発明の一実施例の冷却ヘッダであり（Ｌ）
は側面図、（ｂ）は正面図、第３図は本発明の他の実施
例の冷却ヘッダ本体の正面図、第４図は本発明の原理説
明図、第５図および第６図は本発明の作用説明図であり
、第５図は冷却ヘッダ本体の回動状況図、第６図は第５
図の各ノズル位置に対応する冷却能力の変化図、第７図
は従来例の冷却ヘッダの説明図、第８図は第７図の冷却
ヘッダの水量分布図、第９図は従来例の冷却ヘッダの説
明図である。
１・・・冷却ヘッダ本体 ２・・・ノズル３．３ｂ・
・・中央部分のノズル群
３ａ・・・中央部分のスリットノズル
４．４ｂ・・・両端部分のノズル群
４ａ・・・両端部分のスリットノズル
５・・・冷却ヘッダの回動装置
６・・・固定フレーム ７・・・軸受８・・・円孤
状ラック ９・・・ラック１０・・・シリンダ
１１・・・Ｗ動／＜−１２・・・給水バイブ
１３・・・鋼板Ｖｅ・・・噴出速度 Ｖａ・・・
衝突速度 −ｈ ・・・距離FIG. 1 is an explanatory diagram of a cooling header main body according to an embodiment of the present invention, in which (a) is a front view, (b) is a sectional view taken along line A-A in (a), and FIG. 2 is an embodiment of the present invention. This is the example cooling header (L)
is a side view, (b) is a front view, FIG. 3 is a front view of a cooling header main body of another embodiment of the present invention, FIG. 4 is a diagram explaining the principle of the present invention, and FIGS. FIG. 5 is a diagram showing the rotation of the cooling header body, and FIG.
Figure 7 is an explanatory diagram of the cooling header of the conventional example, Figure 8 is a water flow distribution diagram of the cooling header of Figure 7, and Figure 9 is the cooling of the conventional example. It is an explanatory diagram of a header. 1... Cooling header body 2... Nozzle 3.3b.
...Nozzle group 3a in the center part...Slit nozzles 4.4b in the center part...Nozzle group 4a in both end parts...Slit nozzle 5 in both end parts...Rotating device 6 of the cooling header... Fixed frame 7... Bearing 8... Arc-shaped rack 9... Rack 10... Cylinder
11...W movement/<-12...Water supply vibe
13... Steel plate Ve... Ejection speed Va...
Collision speed -h...Distance
Claims (1)
直角に設けた冷却ヘッダにおいて、冷却ヘッダ本体の複
数個のノズルを鋼板幅 方向中央部分と両端部分に区分し、両端部分のノズル群
は中央部分のノズル群の取付位置に対し所定のヘッダ中
心角度ずらせて取付けるとともに、前記冷却ヘッダ本体
を前記所定の中心角度回動自在としたことを特徴とする
冷却ヘッダ。[Scope of Claims] 1. In a cooling header provided facing a steel plate to be cooled and perpendicular to the traveling direction of the steel plate to be cooled, a plurality of nozzles of the cooling header main body are divided into a center portion and both end portions in the width direction of the steel plate. A cooling header, characterized in that the nozzle groups at both end portions are mounted at a predetermined header center angle shifted from the mounting position of the nozzle group at the center portion, and the cooling header main body is rotatable by the predetermined center angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14058086A JPS62297416A (en) | 1986-06-17 | 1986-06-17 | Cooling header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14058086A JPS62297416A (en) | 1986-06-17 | 1986-06-17 | Cooling header |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62297416A true JPS62297416A (en) | 1987-12-24 |
Family
ID=15271997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14058086A Pending JPS62297416A (en) | 1986-06-17 | 1986-06-17 | Cooling header |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62297416A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100797288B1 (en) | 2006-07-19 | 2008-01-23 | 주식회사 포스코 | A spray nozzle device for coating strip cooler |
| KR101010641B1 (en) | 2003-07-16 | 2011-01-24 | 주식회사 포스코 | Apparatus for cooling water spray for cooling work roll in hot rolling mill |
| WO2024133293A1 (en) * | 2022-12-22 | 2024-06-27 | Fives Stein | Method and device for rapidly cooling a metal strip and continuous production line for metal strips |
-
1986
- 1986-06-17 JP JP14058086A patent/JPS62297416A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101010641B1 (en) | 2003-07-16 | 2011-01-24 | 주식회사 포스코 | Apparatus for cooling water spray for cooling work roll in hot rolling mill |
| KR100797288B1 (en) | 2006-07-19 | 2008-01-23 | 주식회사 포스코 | A spray nozzle device for coating strip cooler |
| WO2024133293A1 (en) * | 2022-12-22 | 2024-06-27 | Fives Stein | Method and device for rapidly cooling a metal strip and continuous production line for metal strips |
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