JPS63216926A - Method for cooling hot coil - Google Patents
Method for cooling hot coilInfo
- Publication number
- JPS63216926A JPS63216926A JP4853887A JP4853887A JPS63216926A JP S63216926 A JPS63216926 A JP S63216926A JP 4853887 A JP4853887 A JP 4853887A JP 4853887 A JP4853887 A JP 4853887A JP S63216926 A JPS63216926 A JP S63216926A
- Authority
- JP
- Japan
- Prior art keywords
- lines
- hot
- cooling
- hot coils
- cool
- 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 33
- 238000000034 method Methods 0.000 title description 11
- 238000005098 hot rolling Methods 0.000 claims description 5
- 238000005192 partition Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、製鉄所等において熱間圧延した後コイル状に
巻取られた金属板（以下ホットコイルと称する）の冷却
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for cooling a metal plate that has been hot-rolled and then wound into a coil in a steel mill or the like (hereinafter referred to as a hot coil). .
（従来の技術）
従来、熱間圧延後のホットコイルは、コンベヤ等で運搬
され、冷却ヤードのコンクリート床上にホットコイルの
内孔の中心線が床面と平行になるダウンエンド状態で載
置するか、前記内孔中心線が床面に垂直になるアップエ
ンド状態で載置して自然冷却にまかされていた。さらに
−歩進んだ方法として第４図に示す如く、冷却ヤードの
コンクリート床２上に積み上げたホットコイル列の一方
向より直進風を作り出す大型ファンＣにより強制空冷す
る方法がある。なお、図中１はホットコイルを示す。(Prior art) Conventionally, a hot coil after hot rolling is transported by a conveyor or the like and placed on the concrete floor of a cooling yard in a down-end state with the center line of the inner hole of the hot coil parallel to the floor surface. Alternatively, it was placed in an up-end position with the center line of the inner hole perpendicular to the floor surface and allowed to cool naturally. As a more advanced method, as shown in FIG. 4, there is a method of forced air cooling using a large fan C that generates straight air from one direction of a row of hot coils stacked on a concrete floor 2 of a cooling yard. Note that 1 in the figure indicates a hot coil.
（発明が解決しようとする問題点）
しかし、前者の方法では冷却に長時間を要し、冷却ヤー
ドの面積も必要以上に広く取らねばならない０例えば、
外径１４００〜２０００ ＋１）、幅８００〜１６００
■■、重量約１５〜３５ｔのホットコイルを自然冷却し
た場合は、第３図の一点鎖線ａで示すような冷却曲線と
なり、常温になるまでに１４４時間程要している。(Problems to be Solved by the Invention) However, in the former method, cooling takes a long time and the area of the cooling yard must be larger than necessary.
Outer diameter 1400~2000 +1), width 800~1600
■■ When a hot coil weighing about 15 to 35 tons is naturally cooled, the cooling curve becomes as shown by the dashed line a in FIG. 3, and it takes about 144 hours to reach room temperature.
また後者の方法では、大型ファンＣより遠方部のホット
コイル列４は大型ファンＣより１５〜１７ｍ離れること
になり、近接部のホットコイル列３に比べ冷風が届きに
くく冷却時間にバラツキが生ずる。上記と同等条件のホ
ットコイルを第４図に示すダウンエンド状態で積み上げ
たホットコイル列の一方向より直進風を作り出す大型フ
ァンにより強制空冷した場合には、第３図の破線すで示
す冷却曲線となり、この方法でもホントコイル全部が冷
却されるまでに３日を要する。これはファンの近接部の
ホットコイル列３に比べると１日のずれとなる。ところ
で、ホットコイルはロフト単位で移動、出荷されるもの
であるため、上記したような従来の冷却方法では結局全
部のホットコイルが冷却されるまで出荷待ちの状態とな
り問題であった。In the latter method, the hot coil row 4 located further away from the large fan C will be 15 to 17 meters away from the large fan C, making it difficult for cold air to reach the hot coil row 3 than the hot coil row 3 located close to it, resulting in variations in cooling time. When hot coils under the same conditions as above are forced air-cooled by a large fan that produces straight air from one direction of the row of hot coils stacked in the down-end state shown in Figure 4, the cooling curve shown by the broken line in Figure 3 Even with this method, it takes three days to cool down the entire coil. This is a one-day lag compared to the hot coil row 3 near the fan. By the way, since the hot coils are moved and shipped in units of lofts, the conventional cooling method described above has a problem in that the hot coils end up waiting to be shipped until all the hot coils are cooled.
本発明は、このような事情に鑑みてなされたものであり
、冷却時間の短縮均一化をはかるホットコイルの冷却方
法を提供せんとするものである。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a hot coil cooling method that shortens and uniformizes the cooling time.
（問題点を解決するための手段）
本発明は、熱間圧延後のホットコイル列を、夫々が戸外
空気取入口と接続して設けられた、直進風を作り出す複
数個の大型ファンにより区分して強制空冷することを要
旨とするホントコイルの冷却方法である。(Means for Solving the Problems) The present invention divides hot coil rows after hot rolling by a plurality of large fans each connected to an outdoor air intake and generating straight air. This is a cooling method for real coils that uses forced air cooling.
（作 用）
本発明に係るホットコイルの冷却方法は、熱間圧延後の
ホットコイル列を、夫々が戸外空気取入口と接続して設
けられた、直進風を作り出す複数個の大型ファンにより
区分して強制空冷するものである為、ホントコイル列全
てに可及的均一に直進風を吹きつけることができる。(Function) In the method for cooling hot coils according to the present invention, hot coil rows after hot rolling are divided by a plurality of large fans each connected to an outdoor air intake and generating straight air. Since it is forced air-cooled, straight air can be blown as evenly as possible to all the coil rows.
（実 施 例）
以下、本発明方法を第１図〜第３図に基づいて説明する
。(Example) Hereinafter, the method of the present invention will be explained based on FIGS. 1 to 3.
第１図は本発明方法の概略説明図であり、図中１はホッ
トコイル、２は冷却ヤードのコンクリート床を示してい
る。第２図は第１図における平面図である。第２図に示
す如く、冷却ヤードのコンクリート床２には所要間隔を
存して多数の風道用溝５が設けてあり、これら風道用溝
５は戸外に開放した空気取入口９と接続し、外気を導入
できるようになされている。ところで、本発明にあって
は該風道用溝５内の空気取入口９を設けた窓側下方に大
型ファンＡを、同じく中央部下方に大型ファンＢを配置
している。さらに大型ファンＡ、 ８間には、大型ファ
ンＡによりホットコイル１に吹きつけられ温められた空
気が、再び大型ファンＢによりホットコイルに吹きつけ
られることを防ぐため、仕切板６を設けている。FIG. 1 is a schematic explanatory diagram of the method of the present invention, in which 1 indicates a hot coil and 2 indicates a concrete floor of a cooling yard. FIG. 2 is a plan view of FIG. 1. As shown in Fig. 2, a large number of airflow grooves 5 are provided at required intervals on the concrete floor 2 of the cooling yard, and these airflow grooves 5 are connected to air intake ports 9 that are open to the outdoors. However, it is designed to allow outside air to be introduced. By the way, in the present invention, a large fan A is disposed below the window side in which the air intake port 9 is provided in the air channel groove 5, and a large fan B is similarly disposed below the center. Furthermore, a partition plate 6 is provided between the large fans A and 8 in order to prevent the warmed air blown onto the hot coil 1 by the large fan A from being blown onto the hot coil by the large fan B again. .
かかる構成の大型ファンＡ、Ｈにより、ホットコイル１
は次のように冷却される。With the large fans A and H having such a configuration, the hot coil 1
is cooled as follows.
第１図に示すように、大型ファンＡが吸い込んだ戸外の
新鮮な冷空は、ホントコイル列の一区分すなわち中央部
より手前側に積み重ねられたホットコイル列７に、直進
風として吹きつけられてこれを冷却する。同時に、大型
ファンＢが吸い込んだ戸外の新鮮な冷空は、ホットコイ
ル列の他の一区分すなわち中央部より奥側のホ７）コイ
ル列８に直進風として吹きつけられてこれを冷却する。As shown in Figure 1, the fresh cold air from the outdoors sucked in by the large fan A is blown as straight wind onto one section of the real coil row, that is, onto the hot coil row 7 stacked toward the front of the center. Cool it down. At the same time, the fresh cold air from the outdoors sucked in by the large fan B is blown straight into another section of the hot coil row, that is, the coil row 8 located further back than the center, and cools it.
かかる如く本発明方法によれば、第３図の実線Ｃに示す
如く、前記従来法と同様の条件下において、従来法に比
べ１日程度冷却時間を短縮できることが確認された。こ
れは、ホットコイルのロフト単位の移動出荷を考慮すれ
ば、干渉、段取り待ちがなくなり単に１日のみの差異で
はなく、１．５日〜２日の短縮となる。As described above, it was confirmed that the method of the present invention can shorten the cooling time by about one day compared to the conventional method under the same conditions as the conventional method, as shown by the solid line C in FIG. Considering the moving and shipping of hot coils in loft units, this is not just a difference of one day, but a reduction of 1.5 to 2 days since there is no interference or waiting for setup.
（発明の効果）
以上説明したように、本発明に係るホットコイルの冷却
方法は、熱間圧延後のホットコイル列を、夫々が戸外空
気取入口と接続して設けられた、直進風を作り出す複数
個の大型ファンにより区分して強制空冷するものである
為、ホットコイル列に均一に直進風を吹きつけることが
でき、ホットコイル列の位置による冷却時間のバラツキ
を防止できる。(Effects of the Invention) As explained above, the hot coil cooling method according to the present invention creates a straight wind by connecting hot coil rows after hot rolling to outdoor air intake ports. Since forced air cooling is performed in sections using multiple large fans, it is possible to uniformly blow straight air onto the hot coil rows, thereby preventing variations in cooling time depending on the position of the hot coil rows.
このように、本発明に係るホットコイルの冷却方法は、
ホットコイルの冷却均一化、短縮化を図るものであり、
冷却効果を大幅に向上させるものである。In this way, the hot coil cooling method according to the present invention includes:
This aims to equalize and shorten the cooling time of hot coils.
This greatly improves the cooling effect.
第１図は本発明に係るホットコイルの冷却方法の概略説
明図、第２図は第１図におけるホットコイルの冷却方法
の平面図、第３図は、ホットコイルの冷却所要時間の比
較図、第４図は、従来の冷却方法の概略説明図を示す。
■はホットコイル、２は冷却ヤードのコンクリート床、
３．４．７．８はホットコイル列、５は風道用溝、６は
仕切板、Ａ、Ｂは大型ファン。
第１図
第２図FIG. 1 is a schematic explanatory diagram of the hot coil cooling method according to the present invention, FIG. 2 is a plan view of the hot coil cooling method in FIG. 1, and FIG. 3 is a comparison diagram of the time required to cool the hot coil. FIG. 4 shows a schematic diagram of a conventional cooling method. ■ is the hot coil, 2 is the concrete floor of the cooling yard,
3.4.7.8 are hot coil rows, 5 is a wind channel, 6 is a partition plate, and A and B are large fans. Figure 1 Figure 2
Claims (1)
取入口と接続して設けられた、直進風を作り出す複数個
の大型ファンにより区分して強制空冷することを特徴と
するホットコイルの冷却方法。(1) A hot coil characterized in that the row of hot coils after hot rolling is divided and forced air-cooled by a plurality of large fans each connected to an outdoor air intake and producing straight air. cooling method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4853887A JPS63216926A (en) | 1987-03-03 | 1987-03-03 | Method for cooling hot coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4853887A JPS63216926A (en) | 1987-03-03 | 1987-03-03 | Method for cooling hot coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63216926A true JPS63216926A (en) | 1988-09-09 |
Family
ID=12806143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4853887A Pending JPS63216926A (en) | 1987-03-03 | 1987-03-03 | Method for cooling hot coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63216926A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021126670A (en) * | 2020-02-13 | 2021-09-02 | 日本製鉄株式会社 | Cooling device and cooling method of hot rolled coil |
-
1987
- 1987-03-03 JP JP4853887A patent/JPS63216926A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021126670A (en) * | 2020-02-13 | 2021-09-02 | 日本製鉄株式会社 | Cooling device and cooling method of hot rolled coil |
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