JPS6252014B2 - - Google Patents
Info
- Publication number
- JPS6252014B2 JPS6252014B2 JP14909782A JP14909782A JPS6252014B2 JP S6252014 B2 JPS6252014 B2 JP S6252014B2 JP 14909782 A JP14909782 A JP 14909782A JP 14909782 A JP14909782 A JP 14909782A JP S6252014 B2 JPS6252014 B2 JP S6252014B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- head tank
- water injection
- cooling water
- 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.)
- Expired
Links
Classifications
-
- 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
-
- 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
- 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)
Description
【発明の詳細な説明】
本発明は、熱間厚板あるいは帯鋼圧延設備等に
使用される鋼板冷却装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a steel plate cooling device used in hot plate or strip rolling equipment.
一般に、熱間圧延設備において、仕上圧延機を
出た高温鋼板は材質改善を目的として搬送ライン
上で所定の温度まで水冷却されるが、この冷却に
あたつては、従来の冷却装置では、高温鋼板全面
に水滴状冷却水をスプレイするスプレイ方式や、
層流冷却水をジエツトするラミナフロー方式が一
般的である。しかし、現在では、冷却技術の向上
により鋼板の品質を改善できる方法が開発され、
冷却速度の広範囲制御性、冷却温度範囲の高
精度制御性、板幅方向の均一冷却性、等に適合
したさらに高性能な冷却設備が要求されるように
なつている。ところが、従来の設備では、かかる
要求に十分応えることができず、早急な設備の改
良が要求されている。 Generally, in hot rolling equipment, high-temperature steel plates leaving the finishing mill are cooled with water to a predetermined temperature on a conveying line for the purpose of improving material quality. A spray method that sprays droplets of cooling water over the entire surface of a high-temperature steel plate,
The laminar flow method, which jets laminar cooling water, is common. However, methods have now been developed to improve the quality of steel sheets through improvements in cooling technology.
There is a growing demand for higher performance cooling equipment that is compatible with wide range control of cooling rate, high precision control of cooling temperature range, uniform cooling in the width direction of the plate, etc. However, conventional equipment cannot sufficiently meet these demands, and there is an urgent need for equipment improvements.
本発明は、かかる要求に応えるために、一定圧
力の冷却水を供給可能な機側ヘツドタンク内の堰
の高さ（水位）を調整し、供給圧力を制御して冷
却能力制御を行なう冷却設備において、板幅方向
に分割した油水ヘツダへの冷却水の供給をそれぞ
れ別々のヘツドタンクにより行ない、それぞれの
水位調整によつて幅方向の冷却能力を可変にした
鋼板冷却装置を提供し、もつて冷却速度の制御範
囲を拡大させること、幅方向の冷却能力を可変に
して板幅方向の均一冷却を実現すること、および
安定した冷却速度を得て冷却温度範囲を精度よく
制御可能にすることを目的とするものであつて、
かかる目的を達成するための構成は、熱間圧延装
置の搬送ラインに隣接して設けられた開放型オー
バーフロー式機側ヘツドタツクを複数個の冷却水
供給源に分割するとともに、該冷却水供給源内に
水位を調整する堰をそれぞれ独立して設け冷却ゾ
ーン内の板幅方向に複数個配設された注水ヘツダ
を前記ヘツドタンク内の冷却水供給源に対応する
隔室に分割する一方、前記注水ヘツダの各隔室と
前記ヘツドタンク内の冷却水供給源とを調圧され
た冷却水が供給されるように連結したことを特徴
とする。 In order to meet such demands, the present invention provides cooling equipment that controls the cooling capacity by adjusting the height (water level) of the weir in the machine side head tank that can supply cooling water at a constant pressure and controlling the supply pressure. , provides a steel plate cooling device in which cooling water is supplied to oil-water headers divided in the width direction of the plate through separate head tanks, and the cooling capacity in the width direction is made variable by adjusting the respective water levels, thereby increasing the cooling rate. The purpose is to expand the control range of the plate, to realize uniform cooling in the width direction by varying the cooling capacity in the width direction, and to obtain a stable cooling rate and enable accurate control of the cooling temperature range. It is something that
The configuration for achieving this purpose is to divide the open overflow machine side head tack provided adjacent to the conveyance line of the hot rolling mill into a plurality of cooling water supply sources, and to A plurality of water injection headers arranged in the board width direction in the cooling zone are each provided with independent weirs for adjusting the water level, and the water injection headers are divided into compartments corresponding to the cooling water supply source in the head tank. Each compartment is connected to a cooling water supply source in the head tank so that pressure-regulated cooling water is supplied thereto.
以下、本発明に係る鋼板冷却装置を図面に示し
た実施例にもとづいて具体的に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS A steel plate cooling device according to the present invention will be specifically described below based on embodiments shown in the drawings.
第１図は本発明に係る冷却装置の概略構成図で
あり、仕上圧延機により圧延された高温鋼板１
は、搬送ライン２により搬送されてくるが、搬送
ライン２には、開放型オーバフロー式の機側ヘツ
ドタンク３が隣接して設けられ、冷却ゾーンに一
定間隔で多数配設された注水ヘツダ５に一定圧力
の冷却水が供給されるようになつている。ヘツド
タンク３は、内部に一定水位Ｈを維持する堰４が
設けられており、堰４内に貯えられる冷却水は、
常に一定に調整される。また、ヘツドタンク３内
に設置された堰４の高さを変えることにより水位
Ｈが調整され、冷却水の供給圧力が容易に制御で
きるようになつている。 FIG. 1 is a schematic configuration diagram of a cooling device according to the present invention, and shows a high temperature steel plate 1 rolled by a finishing mill.
is transported by a transport line 2, which is equipped with an open overflow type machine side head tank 3 adjacent to the transport line 2. Pressure cooling water is supplied. The head tank 3 is provided with a weir 4 that maintains a constant water level H inside, and the cooling water stored in the weir 4 is
Always adjusted to a constant value. Further, the water level H is adjusted by changing the height of a weir 4 installed in the head tank 3, so that the supply pressure of cooling water can be easily controlled.
一方、水位調整可能なヘツドタンク３は、搬送
ライン２上の板幅方向に例えば３ａ，３ｂ，３ｃ
のように独立させて複数個に分割され、さらに各
注水ヘツダ５は仕切壁により板幅方向に独立して
冷却水が供給される隔室５ａ，５ｂ，５ｃに分割
されている。注水ヘツダ５の各分割された隔室５
ａ，５ｂ，５ｃにはヘツドタンク３の独立した冷
却水供給源３ａ，３ｂ，３ｃから配管６により注
水されるように接続され、それぞれの供給源３
ａ，３ｂ，３ｃの水位Ｈを調整することにより板
幅方向の冷却能力制御が可能となる。また、７は
配管６に設けられたバルブであり、バルブ７の開
閉を制御することにより、板幅方向に分割された
注水ヘツダ５の隔室５ａ，５ｂ，５ｃに供給され
る冷却水量を制御することができるようになつて
いる。 On the other hand, the head tank 3 whose water level can be adjusted is, for example, 3a, 3b, 3c in the board width direction on the conveyance line 2.
Each water injection header 5 is further divided by a partition wall into compartments 5a, 5b, and 5c to which cooling water is independently supplied in the plate width direction. Each divided compartment 5 of the water injection header 5
A, 5b, 5c are connected to the head tank 3 so that water is injected from independent cooling water supply sources 3a, 3b, 3c through piping 6.
By adjusting the water level H of a, 3b, and 3c, it is possible to control the cooling capacity in the board width direction. Further, 7 is a valve provided in the pipe 6, and by controlling the opening and closing of the valve 7, the amount of cooling water supplied to the compartments 5a, 5b, and 5c of the water injection header 5 divided in the plate width direction is controlled. It is becoming possible to do so.
第２図ａは、注水ヘツダ５の分割された隔室５
ａ，５ｂ，５ｃから高温鋼板１の板幅方向に注水
される注水量分布８を示す説明図であり、第２図
ｂに示されるように、分割された隔室５ａ，５
ｂ，５ｃの下面に設置された注水口９の開口面積
９ａは適宜変化させることができるようになつて
いる。 FIG. 2a shows the divided compartment 5 of the water injection header 5.
It is an explanatory view showing water injection amount distribution 8 in the plate width direction of high temperature steel plate 1 from a, 5b, 5c, and as shown in FIG. 2b, divided compartments 5a, 5
The opening area 9a of the water inlet 9 installed on the lower surface of the water inlets b and 5c can be changed as appropriate.
なお、第３図は、注水ヘツダ５の注水口９より
注水される注水量分布８を制御する他の手段を示
すものであり、空気圧シリンダ１０の伸縮により
フラツプ１１が注水をさえぎることによつて注水
量分布８から注水量を受樋１２にバイパスさせて
排水し、注水量分布を制御するものである。 FIG. 3 shows another means for controlling the water injection amount distribution 8 from the water injection port 9 of the water injection header 5, in which the flap 11 blocks the water injection by the expansion and contraction of the pneumatic cylinder 10. The water injection amount from the water injection amount distribution 8 is bypassed to the receiving gutter 12 and drained, thereby controlling the water injection amount distribution.
本発明に係る高温鋼板の冷却装置を作動するに
あたつては、まず、ヘツドタンク３の各分割され
た供給源３ａ，３ｂ，３ｃの水位を調整し、板幅
方向に分割された注水ヘツダ５の各隔室５ａ，５
ｂ，５ｃに冷却水が供給されて注水口９より所定
の注水量分布８に制御されて高温鋼板１の冷却が
なされるものであり、冷却水の注水量分布８を板
幅方向に変化させることにより板幅方向の冷却能
力を制御し、積極的な手段によつて均一な冷却を
達成することができる。すなわち冷却水を板幅方
向に均一に注水しても、注水後の板乗水の影響等
により均一な冷却は達成できるものではなく、む
しろ板幅の側端部等のエツヂ部は過冷却になる惧
れもあるのであつて、これを防止するには板幅方
向に注水量制御を行なう必要がある。特に高温鋼
板の冷却時には、板幅方向に均一な冷却がなされ
ないと鋼板に歪みや材質に不均一性が生じるた
め、内部材質向上と同様に、鋼板の品質を保持す
る上から板幅方向の注水量制御が必要とされる。
本発明は、ヘツドタンク３内の供給源３ａ，３
ｂ，３ｃ内の堰の高さを変えて水位を調整するこ
とにより冷却水の供給圧力が容易に制御され、板
幅方向の隔室５ａ，５ｂ，５ｃ部分の注水量分布
を変化させることができるもので、常に安定した
冷却効果が得られる。 In operating the high temperature steel plate cooling device according to the present invention, first, the water level of each divided supply source 3a, 3b, 3c of the head tank 3 is adjusted, and the water injection header 5 divided in the width direction of the plate is adjusted. Each compartment 5a, 5
Cooling water is supplied to b and 5c, and the high temperature steel plate 1 is cooled by controlling the water injection amount distribution 8 to a predetermined water injection amount distribution 8 from the water injection port 9, and the cooling water injection amount distribution 8 is changed in the sheet width direction. This makes it possible to control the cooling capacity in the board width direction and achieve uniform cooling by positive means. In other words, even if cooling water is injected uniformly in the width direction of the board, uniform cooling cannot be achieved due to the effects of water on the board after water is poured, and in fact, the edges such as the side edges of the board become overcooled. To prevent this, it is necessary to control the amount of water injected in the width direction of the plate. In particular, when cooling high-temperature steel plates, if uniform cooling is not achieved in the width direction of the steel plate, distortion of the steel plate and non-uniformity of the material will occur. Water injection amount control is required.
The present invention provides supply sources 3a and 3 in the head tank 3.
By adjusting the water level by changing the height of the weirs in b and 3c, the supply pressure of cooling water can be easily controlled, and the water injection amount distribution in the compartments 5a, 5b, and 5c in the plate width direction can be changed. This allows you to always get a stable cooling effect.
また、ヘツドタンク３の供給源３ａ，３ｂ，３
ｃから注水ヘツド５の隔室５ａ，５ｂ，５ｃへの
供給量は、水位Ｈの調整とともに、バルブ７の開
閉によつても制御できるものであり、板幅の両側
端部のみ注水を止めたりすることも可能であるか
ら、板幅方向の均一冷却が達成される。 In addition, the supply sources 3a, 3b, 3 of the head tank 3
The amount of water supplied from c to the compartments 5a, 5b, and 5c of the water injection head 5 can be controlled not only by adjusting the water level H but also by opening and closing the valve 7. Since it is also possible to do this, uniform cooling in the width direction of the plate can be achieved.
一方、所望の鋼板特性を得るためには、冷却速
度の制御とともに、冷却開始、停止および終了の
各温度の精度特性も重要な要因であり、この精度
向上には、冷却の温度インクリメントと同時に、
冷却の開始および停止が課題となる。そこで本発
明におけるヘツドタンク３の場合には、開始およ
び停止時のウオーターハンマーが小さいために高
速度の開始および停止操作はバルブ７により可能
となる。また、第３図の例に示すような空圧シリ
ンダ１０の駆動により作動するフラツプ１１を使
用した方式によればさらに短時間で開始および停
止の操作を行なうことができるものである。 On the other hand, in order to obtain the desired steel sheet properties, in addition to controlling the cooling rate, the accuracy characteristics of the cooling start, stop, and end temperatures are also important factors.To improve this accuracy, at the same time as increasing the cooling temperature,
Starting and stopping cooling becomes a challenge. Therefore, in the case of the head tank 3 according to the present invention, since the water hammer at the time of starting and stopping is small, high-speed starting and stopping operations can be performed by the valve 7. Furthermore, if a system using a flap 11 operated by the drive of a pneumatic cylinder 10 as shown in the example of FIG. 3 is used, the start and stop operations can be carried out in an even shorter time.
なお、本発明におけるヘツドタンク３と注水ヘ
ツダ５とからなる冷却装置を１基としたとき、高
温鋼板１の搬送ライン２上の冷却ゾーンに応じて
複数基連設することも可能である。 In addition, when one cooling device is made up of the head tank 3 and the water injection header 5 according to the present invention, it is also possible to install a plurality of cooling devices in series depending on the cooling zone on the conveyance line 2 for the high-temperature steel plate 1.
以上、図面に示した実施例にもとづいて詳細に
説明したように、本発明に係る鋼板冷却装置は、
板幅方向に分割した注水ヘツダの冷却水供給をそ
れぞれ独立したヘツドタンクの供給源より行な
い、それぞれ独立した供給源の水位調整によつて
板幅方向の冷却能力を可能にしたことを特徴とす
る簡単な構造により、冷却速度の制御範囲を拡大
させることができるとともに、板幅方向の均一冷
却が可能となる等、安定した冷却速度で冷却温度
範囲を精度よく制御することができる。 As described above in detail based on the embodiments shown in the drawings, the steel plate cooling device according to the present invention has the following features:
A simple method characterized by supplying cooling water to the water injection headers divided in the board width direction from independent head tank supply sources, and by adjusting the water level of each independent supply source, cooling capacity in the board width direction is made possible. With this structure, the control range of the cooling rate can be expanded, and the cooling temperature range can be accurately controlled with a stable cooling rate, such as uniform cooling in the width direction of the plate.
第１図は本発明に係る冷却装置の一実施例を示
す概略構成図、第２図ａは本発明における注水量
分布を示す説明図、第２図ｂは注水口の開口面積
を示す下面図、第３図は本発明における注水量分
布を制御する他の手段を示す説明図である。
図面中、１は高温鋼板、２は搬送ライン、３は
ヘツドタンク、３ａ，３ｂ，３ｃは供給源、４は
堰、５は注水ヘツダ、５ａ，５ｂ，５ｃは隔室、
６は配管、７はバルブ、８は注水量分布、９は注
水口、９ａは開口面積である。
FIG. 1 is a schematic configuration diagram showing an embodiment of a cooling device according to the present invention, FIG. 2 a is an explanatory diagram showing the water injection amount distribution in the present invention, and FIG. 2 b is a bottom view showing the opening area of the water inlet. , FIG. 3 is an explanatory diagram showing another means for controlling the water injection amount distribution in the present invention. In the drawing, 1 is a high temperature steel plate, 2 is a conveyance line, 3 is a head tank, 3a, 3b, 3c is a supply source, 4 is a weir, 5 is a water injection header, 5a, 5b, 5c are compartments,
6 is a pipe, 7 is a valve, 8 is a water injection amount distribution, 9 is a water injection port, and 9a is an opening area.
Claims (1)
れた開放型オーバーフロー式機側ヘツドタンクを
複数個の冷却水供給源に分割するとともに、該冷
却水供給源内に水位を調整する堰をそれぞれ独立
して設け冷却ゾーン内の板幅方向に複数個配設さ
れた注水ヘツダを前記ヘツドタンク内の冷却水供
給源に対応する隔室に分割する一方、前記注水ヘ
ツダの各隔室と前記ヘツドタンク内の冷却水供給
源とを調圧された冷却水が供給されるように連結
したことを特徴とする鋼板冷却装置。1. The open overflow machine side head tank installed adjacent to the conveyance line of the hot rolling mill is divided into multiple cooling water supply sources, and a weir for adjusting the water level is installed independently in each of the cooling water supply sources. A plurality of water injection headers arranged in the board width direction in the cooling zone are divided into compartments corresponding to the cooling water supply source in the head tank, and each compartment of the water injection header and the cooling water in the head tank are divided into compartments corresponding to the cooling water supply source in the head tank. A steel plate cooling device characterized in that a water supply source is connected to the water supply source so that pressure-regulated cooling water is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14909782A JPS5941426A (en) | 1982-08-30 | 1982-08-30 | Apparatus for cooling steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14909782A JPS5941426A (en) | 1982-08-30 | 1982-08-30 | Apparatus for cooling steel plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5941426A JPS5941426A (en) | 1984-03-07 |
| JPS6252014B2 true JPS6252014B2 (en) | 1987-11-02 |
Family
ID=15467626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14909782A Granted JPS5941426A (en) | 1982-08-30 | 1982-08-30 | Apparatus for cooling steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0160919U (en) * | 1987-10-14 | 1989-04-18 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61291265A (en) * | 1985-06-19 | 1986-12-22 | 川崎重工業株式会社 | Connecting hood for car |
| JPH038530Y2 (en) * | 1985-06-19 | 1991-03-01 | ||
| JPS62179106U (en) * | 1986-05-06 | 1987-11-13 | ||
| JPS62295772A (en) * | 1986-06-16 | 1987-12-23 | 株式会社日立製作所 | Passage device for combination vehicle |
| JPH0326048Y2 (en) * | 1987-05-27 | 1991-06-05 | ||
| WO2016080197A1 (en) | 2014-11-20 | 2016-05-26 | 株式会社Ihi | Heat treatment device and cooling device |
| DE102018205684A1 (en) * | 2018-04-13 | 2019-10-17 | Sms Group Gmbh | Cooling device and method for its operation |
-
1982
- 1982-08-30 JP JP14909782A patent/JPS5941426A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0160919U (en) * | 1987-10-14 | 1989-04-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5941426A (en) | 1984-03-07 |
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