JPS585730B2 - Cooling equipment for hot rolled materials - Google Patents
Cooling equipment for hot rolled materialsInfo
- Publication number
- JPS585730B2 JPS585730B2 JP12719878A JP12719878A JPS585730B2 JP S585730 B2 JPS585730 B2 JP S585730B2 JP 12719878 A JP12719878 A JP 12719878A JP 12719878 A JP12719878 A JP 12719878A JP S585730 B2 JPS585730 B2 JP S585730B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- cooling
- tank
- plate
- falling
- 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
-
- 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 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、熱間圧延材の冷却装置、詳しくは、熱間圧延
材（ストリツプ）が圧延機から出て巻き取られる迄の間
にホツトランテーブル上で冷却されるが、その時にスト
リップの温度を制御する冷却装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling device for hot-rolled material, and more particularly, to a cooling device for hot-rolled material (strip), which cools the hot-rolled material (strip) on a hot run table between the time it comes out of the rolling mill and the time it is wound up. However, it concerns a cooling device that controls the temperature of the strip at that time.
例えば熱間連続圧延設備においては、仕上圧延を終了し
たストリップはホットランテーブル上を走行中に水冷却
を受けて所定の温度に下がったところで巻取られる。For example, in continuous hot rolling equipment, a strip that has undergone finish rolling is water cooled while running on a hot run table, and is wound up when the temperature has dropped to a predetermined temperature.
この時の温度は製品品質により夫々決められており、冶
金学上の目的から圧延時の温度を適正にすることと共に
、適正な巻取温度即ちホットランテーブル上でのストリ
ツプの温度制御は製品品質に重要な影響を与える。The temperature at this time is determined by the quality of the product, and in addition to optimizing the temperature during rolling for metallurgical purposes, controlling the temperature of the strip on the hot run table at the appropriate winding temperature is also important for product quality. have a significant impact.
一般に、熱間連続圧延設備と呼称される設備の概略配置
を第１図に示す。FIG. 1 shows a schematic layout of equipment generally referred to as continuous hot rolling equipment.
この設備のホットランテーブルａ上の冷却ゾーンｂと称
される所には、一般に冷却効果の良いラミナーフロー冷
却方式の冷却装置が採用されている。In the so-called cooling zone b on the hot run table a of this equipment, a laminar flow cooling type cooling device with good cooling effect is generally employed.
この装置は、第２図及び第３図に示すように、水槽ｃに
取付けた多数のサイフオンノズルｄの夫々から水柱状の
冷却水ｅを高温のストリップＳに注水するものである。As shown in FIGS. 2 and 3, this device injects a column of cooling water e into a hot strip S from each of a number of siphon nozzles d attached to a water tank c.
尚、ｆは仕上圧延機、ｇはコイラー、ｈはローラーであ
る。In addition, f is a finish rolling mill, g is a coiler, and h is a roller.
上述の方式の冷却装置は、高温のストリツプ上の水槽や
蒸気層を貫通して、新しい冷却水をストリップに直接接
触させることができる有効な方法であるが、最近では、
第４図に示すように水槽ｃの吐出ノズルから水板状（カ
ーテン状）の冷却水ｉを流した方がより一層冷却能力が
向上し、またストリツプの幅方向に均一な冷却ができる
等の優れた利点があることが確認されている。Although the above-mentioned type of cooling device is an effective method of penetrating the water bath or vapor layer above the hot strip and bringing fresh cooling water into direct contact with the strip, recently,
As shown in Fig. 4, cooling water i in a plate shape (curtain shape) is flowed from the discharge nozzle of water tank c, which improves the cooling capacity even more and allows uniform cooling in the width direction of the strip. It has been confirmed that it has significant advantages.
しかし実用上水流の落下高さが約１．５ｍ〜２ｍ必要で
あるため、吐出ノズルからストリップ上面までの落下水
流を板ガラス状の透明な水流として安定状態で発生させ
ることは、容易なことではなく、水流が破断じたり、流
速が速くなりすぎて不透明な乱流となり、冷却効果をか
えって悪化させる、等の問題点がある。However, in practice, the falling height of the water stream needs to be about 1.5m to 2m, so it is not easy to generate a stable falling water stream from the discharge nozzle to the top surface of the strip as a transparent water stream like a plate glass. There are problems such as the water flow breaking, or the flow speed becoming too fast, resulting in an opaque turbulent flow, which actually worsens the cooling effect.
本発明は、上述の問題点を解消し，板状落下水流を安定
状態で発生させることができる冷却装置を提供すること
、更に冷却水の注水をオン、オフする機能を有する冷却
装置を提供することを目的としたものである。The present invention solves the above-mentioned problems and provides a cooling device that can generate a plate-like falling water flow in a stable state, and further provides a cooling device that has the function of turning on and off the injection of cooling water. It is intended for this purpose.
以下，図面を参照しつつ本発明の実施例を説明する。Embodiments of the present invention will be described below with reference to the drawings.
第５図は本発明の冷却装置の一実施例を示すものである
。FIG. 5 shows an embodiment of the cooling device of the present invention.
Ａはストリツプ進行方向、１は水槽で、角形タンク形の
ものでもよいが，実施例としては円形パイプ状の密閉水
槽であり，その底面にストリツプ幅方向に切れ目なく帯
状に設けた排水口（２）を有しストリツプ上方の所定高
さ位置にストリップ幅方向に設置してある。A is the direction in which the strip travels, and 1 is a water tank, which may be in the shape of a rectangular tank, but in this embodiment, it is a closed water tank in the shape of a circular pipe, with a drain port (2 ) and is installed at a predetermined height position above the strip in the width direction of the strip.
この水槽１の項面には、第６図にも示すように多数の空
気孔３があけてあり、該空気孔３を介し水槽１内部に連
通する円弧状の連絡管４が水槽１に取付けてあり、更に
該水槽１には５上記連絡管４を介し水槽１内部に連通す
る流水タンク５が設けてある。As shown in FIG. 6, a large number of air holes 3 are bored in the top surface of the aquarium 1, and an arc-shaped connecting pipe 4 that communicates with the inside of the aquarium 1 through the air holes 3 is attached to the aquarium 1. Furthermore, the water tank 1 is provided with a running water tank 5 which communicates with the inside of the water tank 1 via the connecting pipe 4 mentioned above.
該流水タンク５には、空気抜き弁６と、該タンク５内に
冷却水を供給する給水管７が設けてある。The running water tank 5 is provided with an air vent valve 6 and a water supply pipe 7 for supplying cooling water into the tank 5.
また上記水槽１の内部には、多数の水流出孔８を設け水
槽１内に冷却水を供給するヘッダー９が挿入、設置して
あると共に，多数の孔１０をあけた水流調整用の多孔板
（パンチングメタル等）１１が、前記排水口２上方の所
要高さに位置するように且つ水平に設けてある。Further, inside the water tank 1, a header 9 is inserted and installed which has a large number of water outflow holes 8 and supplies cooling water into the water tank 1, and a perforated plate with a large number of holes 10 for adjusting water flow. (Punched metal etc.) 11 is provided horizontally at a required height above the drain port 2.
上記水槽１底面には、排水口２からの冷却水の落下と遮
断を行うコック装置（ノズル装置）１２がストリップ幅
方向に設けてある。A cock device (nozzle device) 12 is provided on the bottom surface of the water tank 1 in the strip width direction for blocking and blocking cooling water from falling from the drain port 2.
該コック装置１２は、排水口２に通ずる上部の排水孔１
３と下部のスリット状の水落し口１４とを有する本体１
５を備えており、該本体１５内には、上記排水孔１３及
び水落し口１４に連通可能なノズル状孔１６をあけた水
平な回動柱体１７が挿入、配置してあり、更に該回動柱
体１７を第６図に示すようにストリップ幅方向の軸１８
を中心に回動させる駆動装置１９が設けてあり、水落し
口１４の中から回動柱体１７からの冷却水の板状落下水
流２０が発生するようになつており、そして該落下水流
２０発生のオン、オフが回動柱体１７の回動により行わ
れるようになっている。The cock device 12 has an upper drain hole 1 communicating with the drain port 2.
3 and a slit-shaped water outlet 14 at the bottom.
5, and a horizontal rotating column 17 having a nozzle-shaped hole 16 that can communicate with the drain hole 13 and water drop port 14 is inserted and arranged in the main body 15. As shown in FIG.
A driving device 19 is provided to rotate the cooling water around the rotating column 17, and a plate-shaped falling water flow 20 of cooling water is generated from the rotary column 17 from inside the water drop port 14, and the falling water flow 20 The generation is turned on and off by rotating the rotating column 17.
更に、上記コック装置１２の下には、板状落下水流２０
の幅を調整する幅調整体２１が、リンク機構２２を介し
、前後方向に水平運動可能に設けてある（この駆動源は
図示していない）。Further, below the cock device 12, a plate-shaped falling water stream 20 is provided.
A width adjusting body 21 for adjusting the width of the vehicle is provided so as to be horizontally movable in the front-rear direction via a link mechanism 22 (this drive source is not shown).
該幅調整体２１の平面形状については、第７図に示すよ
うに、その前面（或は後面でもよい）は中央部へゆくに
つれ凹むようなくの字形面（或は湾曲面）２３に形成し
てあり、幅調整体２１の水平運動に伴い矢印のように前
後方向に変位するくの字形面２３により板状落下水流２
０の幅が調整されるようになっている。As for the planar shape of the width adjustment body 21, as shown in FIG. The plate-like falling water flow 2 is caused by the dogleg-shaped surface 23 which is displaced in the front and back direction as shown by the arrow as the width adjustment body 21 moves horizontally.
The width of 0 is adjusted.
次に上記構成の冷却装置の操作手順について説明する。Next, the operating procedure of the cooling device having the above configuration will be explained.
（１）コック装置１２の回動柱体１７を矢印Ｐ方向に回
動させると、該回動柱体１７のノズル状孔１６は鎖線位
置に変位し、水槽１の排水口２は閉じられる。(1) When the rotating column 17 of the cock device 12 is rotated in the direction of arrow P, the nozzle-shaped hole 16 of the rotating column 17 is displaced to the chain line position, and the drain port 2 of the water tank 1 is closed.
（ｉ１）ヘッダ−９から冷却水を水槽１内に供給し、該
水槽１が一体となり流水タンク５がある一定高さとなる
ように給水を行なう。(i1) Cooling water is supplied from the header 9 into the water tank 1 so that the water tank 1 is integrated and the running water tank 5 is at a certain height.
この過程において、給水前に水槽１内に存在していた空
気が空気孔３、連絡管４、流水タンク５を経て空気抜き
弁６から外に排出される。In this process, the air that existed in the water tank 1 before water supply is discharged from the air vent valve 6 through the air hole 3, the connecting pipe 4, and the water tank 5.
（ｉｉｉ）コック装置１２の回動柱体１７を前記と逆方
向に回動させて、そのノズル状孔１６を実線位置に変位
させると、水槽１の排水口２は開けられ、冷却水は排水
口２、排水孔１３、ノズル状孔１６を経て水落し口１４
から落下する。(iii) When the rotating column 17 of the cock device 12 is rotated in the opposite direction to the above and the nozzle-shaped hole 16 is displaced to the solid line position, the drain port 2 of the water tank 1 is opened and the cooling water is drained. Water drain port 14 via port 2, drain hole 13, nozzle hole 16
fall from
上記（ｉｉｉ）により、冷却水の板状落下水流２０が発
生して、該落下水流２０によりストリップはその幅方向
に均一な状態で冷却される。As a result of (iii) above, a plate-shaped falling water flow 20 of cooling water is generated, and the strip is cooled uniformly in the width direction by the falling water flow 20.
尚、上記（ｉｉｉ）により水槽１及び流水タンク５内の
水位が低下しないようにこれに対応して給水管７より冷
却水を補給する。Note that cooling water is replenished from the water supply pipe 7 in order to prevent the water levels in the water tank 1 and running water tank 5 from decreasing due to (iii) above.
ここで，本発明の場合、水槽１の横断面が円形であり且
つ多孔板１１が面積の広い円形中央部に設けてあるので
、該多孔板１１により水流は調整され、また排水口２へ
ゆく程流路が狭くなることと多孔板１１の存在とにより
水流が整流され排水口２に案内される。Here, in the case of the present invention, since the cross section of the water tank 1 is circular and the perforated plate 11 is provided in the central part of the circle with a large area, the water flow is adjusted by the perforated plate 11 and flows to the drain port 2. The narrow flow path and the presence of the perforated plate 11 rectify the water flow and guide it to the drain port 2.
又これに加え、ノズル状孔１６部分に負圧を生じさせる
ように給水量を調整して落下水流２０の流速（落下初期
速度）を遅くすることにより、ストリップ面でのはね返
りが少なく、透明な板状落下水流を安定して発生させる
ことができる。In addition, by adjusting the amount of water supplied so as to generate negative pressure in the nozzle hole 16 and slowing down the flow velocity (initial velocity of falling water) of the falling water stream 20, there is less splashing on the strip surface and a transparent A plate-like falling water flow can be stably generated.
またコック装置１２が設けてあるので、板状落下水流２
０発生のオン、オフが自動的に且つ容易にできる。Also, since a cock device 12 is provided, the plate-like falling water flow 2
0 generation can be turned on and off automatically and easily.
更に、くの字形面２３を有する幅調整体２１が設けてあ
るので、板状落下水流２０の幅をストリップ幅等の変化
に応じて自在に調整できる。Further, since the width adjusting body 21 having the dogleg-shaped surface 23 is provided, the width of the plate-shaped falling water stream 20 can be freely adjusted according to changes in the strip width, etc.
次に、第８図は本発明の冷却装置の他の実施例の要部を
示すものである。Next, FIG. 8 shows the main parts of another embodiment of the cooling device of the present invention.
この実施例の場合、第５図における回転ノズル式のコッ
ク装置１２に代え、弾性体例えばゴム板２４でノズル体
を形成し、該ノズル体下端部をその前後両側から挾むよ
うにストツパ２５と偏心カム２６が設けてあり、該偏心
カム２６の回転により一側のゴム板２４をストリップ幅
方向と直角方向に押圧して，ノズル体先端の水落し口１
４を開閉すると共にその間隔を調整するよう構成してあ
る。In this embodiment, instead of the rotary nozzle type cock device 12 shown in FIG. 5, the nozzle body is formed of an elastic body, such as a rubber plate 24, and a stopper 25 and an eccentric cam are arranged to sandwich the lower end of the nozzle body from both the front and back sides. 26 is provided, and the rotation of the eccentric cam 26 presses the rubber plate 24 on one side in a direction perpendicular to the strip width direction to open the water drain port 1 at the tip of the nozzle body.
4 can be opened and closed, and the interval between them can be adjusted.
従って、偏心カム２６の回転により板状落下水流２０発
生のオン、オフが自動的且つ容易にづきると共に上記落
下水流２０の厚みｌも自在に調整できる。Therefore, by rotating the eccentric cam 26, generation of the plate-shaped falling water stream 20 can be automatically and easily turned on and off, and the thickness l of the falling water stream 20 can also be freely adjusted.
また第９図及び第１０図は本発明の冷却装置の更に他の
実施例を示すものである。Further, FIGS. 9 and 10 show still another embodiment of the cooling device of the present invention.
この実施例の場合、第５図におけるコック装置１２に代
え、固定式のノズル２７を水槽１に取付けてあり、該ノ
ズル２７の先端を差込ませた上部ガイド板２８と、上記
ノズル先端に対向するよう水落し口１４をあけた下部ガ
イド板２９とが、相互に間隔をおいて設けてあり、更に
図示（第１０図参照）のように両側（左右両側）が階段
状３０（又は傾斜状或は円弧状）に形成された平面形状
を有するスライド板３１が、上記上下部ガイド板２８，
２９の間に水平方向に摺動可動に挿入してあり、上記ス
ライド板３１の摺動により、水落し口１４からの板状落
下水流２０の発生のオン、オフをすると共に、該水流２
０の幅を調整するよう構成してある。In this embodiment, a fixed nozzle 27 is attached to the water tank 1 in place of the cock device 12 in FIG. A lower guide plate 29 with a water drain opening 14 is provided at a distance from each other, and as shown in FIG. A slide plate 31 having a planar shape formed in a circular arc shape is connected to the upper and lower guide plates 28,
The plate-like falling water flow 20 from the water drop opening 14 is turned on and off by the sliding of the slide plate 31, and the water flow 2
It is configured to adjust the width of 0.
この場合も本発明の所期の効果を達成できることは勿論
である。Of course, the desired effect of the present invention can be achieved in this case as well.
尚、第９図、第１０図中、３２はリンク機構、３３はシ
リンダーロンドである。In addition, in FIGS. 9 and 10, 32 is a link mechanism, and 33 is a cylinder iron.
以上述べたように本発明の熱間圧延材の冷却装置は，
（イ）透明な板状落下水流を容易に安定して発生させる
ことができる。As described above, the hot-rolled material cooling device of the present invention can (a) easily and stably generate a transparent plate-like falling water flow;
（ロ）落下初期流速が従来の場合よりも落せるため、落
下冷却水がストリップ面ではね返ることがない。(b) Since the initial falling flow velocity is lower than in the conventional case, the falling cooling water does not bounce off the strip surface.
（ハ）上記（イ）（０）により冷却効率が良い。(c) Cooling efficiency is good due to (a) and (0) above.
（ニ）板状落下水流発生を自在にオン、オフできると共
に水流の幅も容易に調整できる。(d) The plate-like falling water flow generation can be turned on and off at will, and the width of the water flow can be easily adjusted.
（ホ）落下初期流速が遅いので板状落下水流の長さを多
く出来るためストリップと装置との間のスペースが広く
出来る。(e) Since the initial falling flow velocity is slow, the length of the plate-like falling water stream can be increased, so the space between the strip and the device can be widened.
等の優れた効果を発揮する。Demonstrates excellent effects such as
第１図は熱間連続圧延設備の概略配置図、第２図は第１
図における冷却ゾーンの冷却装置の斜視図、第３図はそ
の要部の拡大図、第４図は他の冷却方式を示す概念図、
第５図は本発明の冷却装置の切断側面図、第６図は第５
図の■−■矢視図、第７図は幅調整装置の要部の概略平
面図、第８図は本発明の冷却装置の他の実施例の要部を
示す切断側面図、第９図は本発明の冷却装置の更に他の
実施例を示す切断側面図、第１０図は第９図におけるス
ライド板の一部概略平面図である。
１・・・・・・水槽、３・・・・・・空気孔、９・・・
・・・ヘツダー、１１・・・・・・多孔板、１２・・・
・・・コック装置（ノズルと装置）、１４・・・・・・
水落し口、２０・・・・・板状落下水流。Figure 1 is a schematic layout of continuous hot rolling equipment, Figure 2 is the
FIG. 3 is an enlarged view of the main parts, FIG. 4 is a conceptual diagram showing another cooling method,
FIG. 5 is a cutaway side view of the cooling device of the present invention, and FIG.
7 is a schematic plan view of the main parts of the width adjustment device, FIG. 8 is a cutaway side view showing the main parts of another embodiment of the cooling device of the present invention, and FIG. 9 10 is a cutaway side view showing still another embodiment of the cooling device of the present invention, and FIG. 10 is a partially schematic plan view of the slide plate in FIG. 9. 1...Aquarium, 3...Air hole, 9...
... Header, 11 ... Perforated plate, 12 ...
...cock device (nozzle and device), 14...
Water outlet, 20...Plate-shaped falling water flow.
Claims (1)
方向に切れ目のない板状水流を落下させるためのスリッ
トノズルを設けた熱間圧延材の冷却装置に於て、水槽を
密閉構造とし水槽上部に空気抜きを設け、水落し口スリ
ットノズルとして、水槽内の冷却水の落下、遮断を行い
得るようにしたものを設け、さらに水槽内に冷却水を供
給する給水装置を設けたことを特徴とする熱間圧延材の
冷却装置。1. In a hot-rolled material cooling device equipped with a slit nozzle for dropping a continuous plate-shaped water stream in the sheet width direction from a water tank placed above the hot-rolled material passing through, the water tank is of a closed structure. Features include an air vent at the top of the tank, a water drop slit nozzle that can drop and cut off the cooling water in the tank, and a water supply device that supplies cooling water into the tank. Cooling equipment for hot rolled materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12719878A JPS585730B2 (en) | 1978-10-16 | 1978-10-16 | Cooling equipment for hot rolled materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12719878A JPS585730B2 (en) | 1978-10-16 | 1978-10-16 | Cooling equipment for hot rolled materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5554210A JPS5554210A (en) | 1980-04-21 |
| JPS585730B2 true JPS585730B2 (en) | 1983-02-01 |
Family
ID=14954120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12719878A Expired JPS585730B2 (en) | 1978-10-16 | 1978-10-16 | Cooling equipment for hot rolled materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS585730B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6135551Y2 (en) * | 1980-07-25 | 1986-10-16 | ||
| JPS57195528A (en) * | 1981-05-29 | 1982-12-01 | Ishikawajima Harima Heavy Ind Co Ltd | Cooling device for high temperature steel |
| JPS57194711U (en) * | 1981-05-29 | 1982-12-10 | ||
| JPS60160913U (en) * | 1984-03-30 | 1985-10-25 | 住友金属工業株式会社 | Flexible slit laminar flow nozzle |
| JPS60115318A (en) * | 1984-09-07 | 1985-06-21 | Ishikawajima Harima Heavy Ind Co Ltd | Cock device of hot rolled material cooling device |
| AT406834B (en) * | 1997-12-18 | 2000-09-25 | Voest Alpine Ind Anlagen | COOLING DEVICE FOR COOLING A HOT MOVING METAL STRIP |
| KR100547477B1 (en) | 2004-06-30 | 2006-01-31 | 주식회사 포스코 | Cooling header for steel sheet cooling equipment |
| CN102794316A (en) * | 2012-07-13 | 2012-11-28 | 中冶南方工程技术有限公司 | Quick control cooling device of medium steel plate |
| EP2777835A1 (en) * | 2013-03-14 | 2014-09-17 | Siemens VAI Metals Technologies GmbH | Cooling device with spray bar with ventilation device |
| CN109178575B (en) * | 2018-10-30 | 2020-09-01 | 山东钢铁集团日照有限公司 | Compact emulsion case |
-
1978
- 1978-10-16 JP JP12719878A patent/JPS585730B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5554210A (en) | 1980-04-21 |
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