JP2008221298A - Cooling facility for hot-rolled steel strip - Google Patents

Cooling facility for hot-rolled steel strip Download PDF

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JP2008221298A
JP2008221298A JP2007065128A JP2007065128A JP2008221298A JP 2008221298 A JP2008221298 A JP 2008221298A JP 2007065128 A JP2007065128 A JP 2007065128A JP 2007065128 A JP2007065128 A JP 2007065128A JP 2008221298 A JP2008221298 A JP 2008221298A
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steel strip
cooling water
hot
rolled steel
cooling
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JP2007065128A
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JP4960732B2 (en
Inventor
Tsutomu Sugiyama
努 杉山
Shigefumi Katsura
重史 桂
Yoshinori Iwasaki
嘉徳 岩崎
Nobuo Nishiura
伸夫 西浦
Shiro Shinohara
史郎 篠原
Toshihiro Uchida
敏宏 内田
Masahiro Itabashi
正博 板橋
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JFE Steel Corp
JFE Denki Corp
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JFE Steel Corp
JFE Mechanical Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To realize the improvement of draining efficiency and the uniform and stable cooling effect. <P>SOLUTION: The cooling water is sprayed so as to concentrate to a prescribed position of a steel strip 1 (shower center) from one pair of positions apart from a conveying direction and also, a splash guard 5 is arranged so as to incline this spraying direction into the width direction of the steel strip 1 and interpose the shower center from both sides of the width direction. Side walls 6 of the splash-guard 5 is formed so as to cover the splash range of the cooling water and the bottom surface 7 having the inclination at the lower part of the side wall 6 and a drainage hole 8 is formed at the lowest position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、熱延鋼帯冷却設備に関するものである。   The present invention relates to a hot-rolled steel strip cooling facility.

熱間圧延された鋼帯を冷却する方法として、鋼帯の上面に冷却水を散布するパイプラミナ方式がある（特許文献１参照）。ところが、これは冷却水の勢いが弱いため、鋼帯の表面で膜沸騰状態となり、均一で安定した冷却効果を得られない可能性があるので、鋼帯に対して冷却水を噴射することが考えられる。
特開平９−１４１３２２号公報 As a method for cooling a hot-rolled steel strip, there is a pipe lamina method in which cooling water is sprayed on the upper surface of the steel strip (see Patent Document 1). However, since the momentum of the cooling water is weak, it becomes a film boiling state on the surface of the steel strip, and there is a possibility that a uniform and stable cooling effect cannot be obtained. Conceivable.
JP-A-9-141322

一般に、冷却水は鋼帯を搬送するローラ同士の隙間から排水されるが、上記のように大量の冷却水を噴射すると、ローラ同士の隙間からは十分な排水ができないので、冷却水が滞留し、均一で安定した冷却効果が得られない可能性がある。なお、ローラのピッチを広げ、排水性能を向上させることも考えられるが、鋼帯の先端を未拘束の状態で通過させるときに、これを円滑に行うためには、ローラのピッチを広げることは避けたい。
本発明の課題は、排水性能を向上させると共に、均一で安定した冷却効果を実現することである。 Generally, the cooling water is drained from the gap between the rollers that convey the steel strip. However, if a large amount of cooling water is injected as described above, sufficient cooling water cannot be drained from the gap between the rollers. There is a possibility that a uniform and stable cooling effect cannot be obtained. In addition, it is conceivable to increase the pitch of the rollers to improve drainage performance, but in order to smoothly do this when passing the tip of the steel strip in an unconstrained state, it is necessary to increase the pitch of the rollers. I want to avoid it.
An object of the present invention is to improve drainage performance and realize a uniform and stable cooling effect.

本発明の請求項１に係る熱延鋼帯冷却設備は、熱間圧延され搬送される鋼帯を冷却する熱延鋼帯冷却設備において、搬送方向に離れた一対の位置から前記鋼帯の所定位置に集中するように冷却水を噴射すると共に、当該噴射方向を前記鋼帯の幅方向に傾斜させた噴射手段と、前記鋼帯の所定位置を幅方向両側から挟むように並設され、当該鋼帯に噴射された前記冷却水を集めて排水する排水手段と、を備えることを特徴とする。   A hot-rolled steel strip cooling facility according to claim 1 of the present invention is a hot-rolled steel strip cooling facility that cools a steel strip that is hot-rolled and transported. The cooling water is sprayed so as to be concentrated at the position, and the spraying means in which the spraying direction is inclined in the width direction of the steel strip and the predetermined position of the steel strip are arranged in parallel so as to be sandwiched from both sides in the width direction, And a drainage means for collecting and draining the cooling water sprayed on the steel strip.

また、本発明の請求項２に係る熱延鋼帯冷却設備は、前記排水手段は、前記鋼帯に噴射された前記冷却水のスプラッシュ領域を覆う側壁と、該側壁の下部に形成され勾配を有する底面と、該底面の最下位に形成された排水口と、を備えることを特徴とする。
本発明の請求項３に係る熱延鋼帯冷却設備は、前記排水手段は、流入してきた前記冷却水が跳ね返る位置に立設された障壁を備えることを特徴とする。 Further, in the hot-rolled steel strip cooling facility according to claim 2 of the present invention, the drainage means is formed on a side wall that covers a splash region of the cooling water sprayed on the steel strip, and at a lower portion of the side wall. And a drain port formed at the bottom of the bottom surface.
The hot-rolled steel strip cooling facility according to claim 3 of the present invention is characterized in that the drainage means includes a barrier standing at a position where the cooling water that has flowed in rebounds.

本発明の請求項４に係る熱延鋼帯冷却設備は、前記側壁を、上段及び下段に分割し、且つ上段に対して下段が上下方向に進退可能に構成することを特徴とする。
本発明の請求項５に係る熱延鋼帯冷却設備は、前記冷却水のスプラッシュ領域で前記鋼帯を搬送するローラの軸受を、保護板で遮蔽することを特徴とする。
本発明の請求項６に係る熱延鋼帯冷却設備は、前記冷却水のスプラッシュ領域で前記鋼帯を搬送するローラの軸受を、ダブルシール構造にすることを特徴とする。 The hot-rolled steel strip cooling facility according to a fourth aspect of the present invention is characterized in that the side wall is divided into an upper stage and a lower stage, and the lower stage is movable forward and backward with respect to the upper stage.
The hot-rolled steel strip cooling facility according to claim 5 of the present invention is characterized in that a roller bearing that transports the steel strip in the splash region of the cooling water is shielded by a protective plate.
A hot-rolled steel strip cooling facility according to a sixth aspect of the present invention is characterized in that a roller bearing that conveys the steel strip in the splash region of the cooling water has a double seal structure.

本発明の請求項１に係る熱延鋼帯冷却設備によれば、搬送方向に離れた一対の位置から鋼帯の所定位置に集中するように冷却水を噴射することで、鋼帯の表面で膜沸騰状態となることを防ぎ、均一で安定した冷却効果を得ることができる。このとき、一対の位置から噴射された冷却水は、搬送方向の水勢を相殺し合うので、相互に水切りを行うことができると共に、その噴射方向を鋼帯の幅方向に傾斜させたことで、水流を幅方向へと向かわせることができる。そして、その所定位置を幅方向両側から挟むように排水手段を設けたことで、幅方向へと噴出する冷却水を効率的に集めて排水することができる。したがって、排水性能を向上させると共に、均一で安定した冷却効果を得ることができる。   According to the hot-rolled steel strip cooling facility according to claim 1 of the present invention, by injecting cooling water from a pair of positions separated in the transport direction so as to concentrate on a predetermined position of the steel strip, A film boiling state can be prevented and a uniform and stable cooling effect can be obtained. At this time, the cooling water sprayed from the pair of positions offsets the water flow in the transport direction, so that water can be drained from each other, and the spraying direction is inclined in the width direction of the steel strip. The water flow can be directed in the width direction. And by providing the drainage means so that the predetermined position is sandwiched from both sides in the width direction, the cooling water ejected in the width direction can be efficiently collected and drained. Therefore, drainage performance can be improved and a uniform and stable cooling effect can be obtained.

本発明の請求項２に係る熱延鋼帯冷却設備によれば、鋼帯に噴射された冷却水のスプラッシュ領域を覆う側壁を形成することで、冷却水の周囲への飛散を防止することができ、この側壁の下部には勾配を有する底面を形成し、底面の最下位に排水口を形成したことで、側壁に向かって流入してきた冷却水を回収し確実に排水することができる。
本発明の請求項３に係る熱延鋼帯冷却設備によれば、流入してきた冷却水が跳ね返る位置に障壁を設けたことで、冷却水の流出を確実に防止することができる。 According to the hot-rolled steel strip cooling facility according to claim 2 of the present invention, it is possible to prevent splashing of the coolant around the water by forming the side wall that covers the splash region of the coolant injected into the steel strip. In addition, a bottom surface having a slope is formed at the lower portion of the side wall, and the drainage port is formed at the bottom of the bottom surface, so that the cooling water flowing toward the side wall can be recovered and reliably drained.
According to the hot-rolled steel strip cooling facility according to claim 3 of the present invention, it is possible to reliably prevent the cooling water from flowing out by providing the barrier at the position where the flowing cooling water rebounds.

本発明の請求項４に係る熱延鋼帯冷却設備によれば、側壁を上段及び下段に分割し、且つ上段に対して下段が上下方向に進退可能に構成することで、例えば鋼帯を搬送するローラやその軸受などのメンテナンスを容易に行うことができる。
本発明の請求項５に係る熱延鋼帯冷却設備によれば、冷却水のスプラッシュ領域で鋼帯を搬送するローラの軸受を、保護板で遮蔽することで、軸受を冷却水のスプラッシュから保護し、長寿命化を図ることができる。
本発明の請求項６に係る熱延鋼帯冷却設備によれば、冷却水のスプラッシュ領域で鋼帯を搬送するローラの軸受を、ダブルシール構造にすることで、冷却水の内部への浸入を防ぎ、長寿命化を図ることができる。 According to the hot-rolled steel strip cooling facility according to claim 4 of the present invention, the side wall is divided into an upper stage and a lower stage, and the lower stage is configured to be able to advance and retract in the vertical direction with respect to the upper stage. Maintenance of the roller to be used and its bearing can be easily performed.
According to the hot-rolled steel strip cooling facility according to claim 5 of the present invention, the bearing of the roller that conveys the steel strip in the splash region of the cooling water is shielded by the protective plate, thereby protecting the bearing from the splash of the cooling water. In addition, the life can be extended.
According to the hot-rolled steel strip cooling facility according to claim 6 of the present invention, the roller bearing that transports the steel strip in the splash region of the cooling water has a double seal structure so that the cooling water can enter the cooling water. It can prevent and prolong the service life.

以下、本発明の実施形態について説明する。
図１及び図２は、冷却水噴射設備の概略構成である。熱間圧延された鋼帯１は、テーブルローラ２によって巻取り側へと搬送され、その途中で、図１に示すように、上下から噴射される冷却水によって両面が冷却される。
先ず、下面の冷却は、テーブルローラ２同士の間に配設された複数の下部ラミナーヘッダ３によって行われる。下部ラミナーヘッダ３は、例えばスプレーノズルで構成され、図２に示すように、下面の幅方向全域に渡って冷却水を吹き掛けるように、複数のノズルが列設されている。この冷却水は、自然落下し、図示しない下方の排水設備によって処理される。 Hereinafter, embodiments of the present invention will be described.
FIG.1 and FIG.2 is schematic structure of a cooling water injection equipment. The hot-rolled steel strip 1 is conveyed to the winding side by a table roller 2, and on the way, both surfaces are cooled by cooling water sprayed from above and below as shown in FIG.
First, the lower surface is cooled by a plurality of lower laminar headers 3 disposed between the table rollers 2. The lower laminar header 3 is composed of, for example, a spray nozzle, and as shown in FIG. 2, a plurality of nozzles are arranged in a row so as to spray cooling water over the entire width direction of the lower surface. This cooling water falls naturally and is processed by a lower drainage facility (not shown).

一方、上面の冷却は、図１に示すように、鋼帯１の上方に配設された一対の上部ラミナーヘッダ４によって行われる。上部ラミナーヘッダ４は、冷却水が直線状に吐出し鋼帯１の所定位置（シャワー中心）に集中するように、高圧ノズルで構成され、図１及び図２に示すように、多数の吐水線が形成される。
先ず、幅方向から見ると（図１）、一方の側の上部ラミナーヘッダ４において、複数列の吐水線があるが、全て同一方向の角度で噴射される。一方、搬送方向から見ると（図２）、垂直方向に対して左側に傾斜して噴射される列と、右側に傾斜して噴射される列とがあり、これらは交互に配列されている。 On the other hand, the upper surface is cooled by a pair of upper laminar headers 4 disposed above the steel strip 1, as shown in FIG. The upper laminar header 4 is composed of a high-pressure nozzle so that cooling water is discharged in a straight line and concentrated at a predetermined position (shower center) of the steel strip 1, and as shown in FIG. 1 and FIG. Is formed.
First, when viewed from the width direction (FIG. 1), in the upper laminar header 4 on one side, there are plural rows of water discharge lines, all of which are ejected at an angle in the same direction. On the other hand, when viewed from the conveyance direction (FIG. 2), there are a row that is injected to be inclined to the left side with respect to the vertical direction and a row that is injected to be inclined to the right side.

図３は、鋼帯１の上面に噴射された冷却水の水勢を示す。すなわち、幅方向の中心を境にして、左側は左方向へと斜行し、右側は右方向へと斜行し、尚且つシャワー中心を境にして、左方向へと斜行する一群同士が対抗すると共に、右方向へと斜行する一群同士が対抗する。したがって、搬送方向の水勢は相殺され、幅方向の水勢が残るため、冷却水の流れはシャワー中心に沿って幅方向の両側へと向かう。   FIG. 3 shows the water flow of the cooling water sprayed on the upper surface of the steel strip 1. That is, the left side is skewed to the left with the center in the width direction as the boundary, the right side is skewed to the right, and the group that skews to the left with the shower center as a boundary A group that runs diagonally to the right faces each other. Accordingly, the water flow in the transport direction is offset and the water flow in the width direction remains, so that the flow of the cooling water is directed to both sides in the width direction along the shower center.

図４〜図７は、鋼帯１の上面に噴射した冷却水を集めて排水するスプラッシュガード５の概略構成である。
スプラッシュガード５は、シャワー中心を幅方向両側から挟むように並設されており、テーブルローラ側が開口した箱型に形成されている。すなわち、冷却水のスプラッシュ領域を覆う『コの字』型の側壁６と、側壁６の下部に形成され勾配を有する底面７と、底面７の最下位に形成された排水口８と、で構成されている。
スプラッシュ領域は、上部ラミナーヘッダ４から噴射される冷却水の流量や流速、噴射角度、更に鋼帯１の搬送速度等に応じて決定される。 4 to 7 are schematic configurations of the splash guard 5 that collects and drains the cooling water sprayed on the upper surface of the steel strip 1.
The splash guards 5 are juxtaposed so as to sandwich the shower center from both sides in the width direction, and are formed in a box shape with the table roller side opened. That is, it is composed of a “U” -shaped side wall 6 that covers the splash region of the cooling water, a bottom surface 7 that is formed at a lower portion of the side wall 6 and has a slope, and a drain port 8 that is formed at the bottom of the bottom surface 7. Has been.
The splash region is determined in accordance with the flow rate, flow velocity, spray angle, cooling speed of the steel strip 1 and the like, which are sprayed from the upper laminar header 4.

側壁６は、図５に示すように、上段６ａ及び下段６ｂに分割されており、その上段６ａを架台９に固定し、上段６ａに対して下段６ｂが上下方向に進退可能に構成されている。
底面７は、図６に示すように、二つの区画からなり、各区画の略中央に向けて傾斜した勾配が形成されている。底面７におけるテーブルローラ側の縁部は、鋼帯１の搬送ラインと略同じ高さにある。 As shown in FIG. 5, the side wall 6 is divided into an upper stage 6a and a lower stage 6b. The upper stage 6a is fixed to the gantry 9, and the lower stage 6b is configured to be movable back and forth with respect to the upper stage 6a. .
As shown in FIG. 6, the bottom surface 7 is composed of two sections, and a slope that is inclined toward the approximate center of each section is formed. The edge of the bottom surface 7 on the table roller side is at substantially the same height as the conveying line of the steel strip 1.

排水口８は、図４に示すように、テーブルローラ２のドライブシャフト１０との干渉を避けて配置され、図示しない下方の排水設備に接続されている。排水口８の断面積は、上部ラミナーヘッダ４から噴射される冷却水の流量に応じて決定される。
なお、テーブルローラ２を挟んで反対側のスプラッシュガード５では、排水口８の位置が上記の構成とは異なるが、これは、ドライブシャフト１０の配置に応じて変化させたものである。 As shown in FIG. 4, the drainage port 8 is disposed avoiding interference with the drive shaft 10 of the table roller 2, and is connected to a lower drainage facility (not shown). The cross-sectional area of the drain port 8 is determined according to the flow rate of the cooling water sprayed from the upper laminar header 4.
In the splash guard 5 on the opposite side across the table roller 2, the position of the drainage port 8 is different from the above configuration, but this is changed according to the arrangement of the drive shaft 10.

図７に示すように、側壁６の内周で、シャワー中心の延長線上には、幅方向に流入してくる冷却水を搬送方向に分散して方向転換させるセンターガイド１１が形成され、コーナには、センターガイド１１によって方向転換された冷却水を更にテーブルローラ側に方向転換させるコーナガイド１２が形成されている。さらに、側壁６の内周で、コーナガイド１２からテーブルローラ側に向かう間には、底面から立ち上がる障壁１３が形成されている。   As shown in FIG. 7, a center guide 11 is formed on the inner circumference of the side wall 6 on the extension line of the shower center to disperse the cooling water flowing in the width direction in the conveying direction and change the direction. Is formed with a corner guide 12 for changing the direction of the cooling water whose direction has been changed by the center guide 11 to the table roller side. Further, on the inner periphery of the side wall 6, a barrier 13 rising from the bottom surface is formed between the corner guide 12 and the table roller side.

図８に示すように、スプラッシュガード５下方には、テーブルローラ２の軸受１４が配設されており、この軸受１４に対してスプラッシュガード５とテーブルローラ２との間から漏出した冷却水が浸入する可能性がある。そこで、軸受１４を遮蔽する保護板１５を、スプラッシュガード５の下部から垂設する。保護板１５は、遮蔽面積を広げるために、テーブルローラ回転軸２ａに跨るような形状となっており、勿論、僅かな隙間を設けて、非接触状態を維持している。さらに、軸受１４において、シールのリップを二重に形成にしたり、シール自体を二重にしたりして、ダブルシール構造にする。
以上より、上部ラミナーヘッダ４が「噴射手段」に対応し、スプラッシュガード５が「排水手段」に対応している。 As shown in FIG. 8, a bearing 14 of the table roller 2 is disposed below the splash guard 5, and cooling water leaked from between the splash guard 5 and the table roller 2 enters the bearing 14. there's a possibility that. Therefore, a protection plate 15 that shields the bearing 14 is suspended from the lower portion of the splash guard 5. The protective plate 15 has a shape straddling the table roller rotating shaft 2a in order to increase the shielding area, and of course, a slight gap is provided to maintain a non-contact state. Further, in the bearing 14, a double seal structure is obtained by forming a double lip of the seal or double the seal itself.
From the above, the upper laminar header 4 corresponds to the “injection means”, and the splash guard 5 corresponds to the “drainage means”.

次に、本実施形態の作用効果について説明する。
鋼帯１の表面で冷却水が膜沸騰状態となることを避けるためには、冷却水を高圧噴射する必要があるが、大量の冷却水を噴射すると、テーブルローラ２の隙間からは十分な排水ができず、冷却水が滞留してしまう可能性がある。
そこで、搬送方向に離れた一対の位置から鋼帯１の所定位置（シャワー中心）に集中するように冷却水を噴射すると共に、その噴射方向を鋼帯１の幅方向に傾斜させる。これにより、一対の位置から噴射された冷却水は、搬送方向の水勢を相殺し合うので、相互に水切りを行うことができ、且つ冷却水の流れをシャワー中心に沿って幅方向の両側へと向かわせることができる。 Next, the effect of this embodiment is demonstrated.
In order to prevent the cooling water from being film boiling on the surface of the steel strip 1, it is necessary to inject the cooling water at a high pressure. However, if a large amount of cooling water is injected, sufficient drainage from the gap between the table rollers 2 The cooling water may stay.
Then, while injecting cooling water so that it may concentrate on the predetermined position (shower center) of the steel strip 1 from a pair of positions separated in the conveyance direction, the injection direction is inclined in the width direction of the steel strip 1. As a result, the cooling water sprayed from the pair of positions cancels out the water flow in the transport direction, so that the water can be drained from each other, and the flow of the cooling water flows to both sides in the width direction along the shower center. Can be directed.

その先に、つまりシャワー中心を幅方向両側から挟むようにスプラッシュガード５を設けたことで、幅方向へと噴出する冷却水を効率的に集めて排水することができる。したがって、排水性能を向上させると共に、均一で安定した冷却効果を得ることができる。
スプラッシュガード５の側壁６は、冷却水のスプラッシュ領域を覆うように形成されているので、冷却水の周囲への飛散を確実に防止することができる。また、側壁６の下部には勾配を有する底面７を形成し、その最下位に排水口８を形成したことで、側壁６に向かって流入してきた冷却水を回収し確実に排水することができる。 By providing the splash guard 5 so as to sandwich the shower center from both sides in the width direction, the cooling water ejected in the width direction can be efficiently collected and drained. Therefore, drainage performance can be improved and a uniform and stable cooling effect can be obtained.
Since the side wall 6 of the splash guard 5 is formed so as to cover the splash area of the cooling water, it is possible to reliably prevent the cooling water from being scattered around. Further, the bottom surface 7 having a gradient is formed at the lower portion of the side wall 6 and the drainage port 8 is formed at the lowest position thereof, so that the cooling water flowing toward the side wall 6 can be recovered and reliably drained. .

このとき、冷却水の流れは、センターガイド１１及びコーナガイド１２によって方向転換されることで流速が低減されてから、障壁１３によって塞き止められ、排水口８へスムーズに案内される。この障壁１３によって、冷却水がテーブルローラ側に流出することを確実に防止することができる。
また、スプラッシュガード５の側壁６は、架台９に固定された上段６ａに対して下段６ｂが上下方向に進退可能なので、例えば排水口８を所定位置で切り離し、この排水口８の上部や底面７と一体化された下段６を上昇させれば、テーブルローラ２や軸受１４のメンテナンスを容易に行うことができる。なお、ここでは上段６ａに対して下段６ｂを、上下方向に進退可能な構成としているが、幅方向に沿って前後に進退可能な構成とし、上段６ａに対して下段６ｂを外方に引き出せば、上記と同様の効果を得ることができる。 At this time, the flow of the cooling water is diverted by the center guide 11 and the corner guide 12 to reduce the flow velocity, and is then blocked by the barrier 13 and smoothly guided to the drain port 8. The barrier 13 can reliably prevent the cooling water from flowing out to the table roller side.
Further, the side wall 6 of the splash guard 5 can be moved up and down in the vertical direction with respect to the upper stage 6a fixed to the gantry 9, so that, for example, the drainage port 8 is separated at a predetermined position, and the upper and bottom surfaces 7 If the lower stage 6 integrated with is raised, maintenance of the table roller 2 and the bearing 14 can be easily performed. Here, the lower stage 6b is configured to be able to advance and retract in the vertical direction with respect to the upper stage 6a. The same effects as described above can be obtained.

一方、スプラッシュ領域に配設されたテーブルローラ２の軸受１４を、保護板１５で遮蔽することで、軸受１４を冷却水から保護し、長寿命化を図ることができる。さらに、この軸受１４を、ダブルシール構造にすることで、冷却水の内部への浸入を防ぎ、長寿命化を図ることができる。
なお、上記の一実施形態では、側壁６を平面で構成しているが、これに限定されるものではなく、冷却水のスプラッシュ領域を覆うことができればよいので、曲面で構成してもよい。
また、上記の一実施形態では、一つのスプラッシュガード５に二つの排水口８を設けているが、所望の排水性能が確保できれば、一つだけでもよい。 On the other hand, the bearing 14 of the table roller 2 disposed in the splash region is shielded by the protective plate 15, so that the bearing 14 can be protected from the cooling water and the life can be extended. Furthermore, by making this bearing 14 into a double seal structure, it is possible to prevent intrusion of cooling water into the interior and to prolong the service life.
In the above-described embodiment, the side wall 6 is configured as a flat surface, but is not limited thereto, and may be configured as a curved surface as long as the splash region of the cooling water can be covered.
Further, in the above-described embodiment, two drain ports 8 are provided in one splash guard 5, but only one may be used as long as desired drainage performance can be ensured.

幅方向から見た冷却水噴射設備である。This is a cooling water injection facility viewed from the width direction. 搬送方向から見た冷却水噴射設備である。It is the cooling water injection equipment seen from the conveyance direction. 冷却水の水勢を示す。Indicates the water flow of the cooling water. スプラッシュガードの平面図である。It is a top view of a splash guard. スプラッシュガードの側面図である。It is a side view of a splash guard. スプラッシュガードの斜視図である。It is a perspective view of a splash guard. 冷却水の流れを示す。The flow of cooling water is shown. テーブルローラの軸受である。It is a bearing of a table roller.

符号の説明Explanation of symbols

１ 鋼帯
２ テーブルローラ
３ 下部ラミナーヘッダ
４ 上部ラミナーヘッダ
５ スプラッシュガード
６ 側壁
７ 底面
８ 排水口
９ 架台
１０ ドライブシャフト
１１ センターガイド
１２ コーナガイド
１３ 障壁
１４ 軸受
１５ 保護板 DESCRIPTION OF SYMBOLS 1 Steel strip 2 Table roller 3 Lower laminar header 4 Upper laminar header 5 Splash guard 6 Side wall 7 Bottom surface 8 Drainage port 9 Mount 10 Drive shaft 11 Center guide 12 Corner guide 13 Barrier 14 Bearing 15 Protection plate

Claims (6)

熱間圧延され搬送される鋼帯を冷却する熱延鋼帯冷却設備において、
搬送方向に離れた一対の位置から前記鋼帯の所定位置に集中するように冷却水を噴射すると共に、当該噴射方向を前記鋼帯の幅方向に傾斜させた噴射手段と、前記鋼帯の所定位置を幅方向両側から挟むように並設され、当該鋼帯に噴射された前記冷却水を集めて排水する排水手段と、を備えることを特徴とする熱延鋼帯冷却設備。 In a hot-rolled steel strip cooling facility that cools a steel strip that is hot-rolled and conveyed,
Injecting cooling water from a pair of positions separated in the conveying direction so as to concentrate on a predetermined position of the steel strip, and an injection means in which the injection direction is inclined in the width direction of the steel strip; A hot-rolled steel strip cooling facility, comprising: drainage means arranged in parallel so as to sandwich the position from both sides in the width direction and collecting and draining the cooling water sprayed on the steel strip. 前記排水手段は、前記鋼帯に噴射された前記冷却水のスプラッシュ領域を覆う側壁と、該側壁の下部に形成され勾配を有する底面と、該底面の最下位に形成された排水口と、を備えることを特徴とする請求項１に記載の熱延鋼帯冷却設備。   The drainage means includes a side wall covering a splash region of the cooling water sprayed on the steel strip, a bottom surface having a slope formed at a lower portion of the side wall, and a drain outlet formed at the lowest position of the bottom surface. The hot-rolled steel strip cooling facility according to claim 1, comprising: 前記排水手段は、流入してきた前記冷却水が跳ね返る位置に立設された障壁を備えることを特徴とする請求項２に記載の熱延鋼帯冷却設備。   The hot-rolled steel strip cooling system according to claim 2, wherein the drainage means includes a barrier erected at a position where the cooling water that has flowed in rebounds. 前記側壁を、上段及び下段に分割し、且つ上段に対して下段が上下方向に進退可能に構成することを特徴とする請求項２又は３に記載の熱延鋼帯冷却設備。   The hot-rolled steel strip cooling system according to claim 2 or 3, wherein the side wall is divided into an upper stage and a lower stage, and the lower stage is configured to advance and retract in the vertical direction with respect to the upper stage. 前記冷却水のスプラッシュ領域で前記鋼帯を搬送するローラの軸受を、保護板で遮蔽することを特徴とする請求項１〜４の何れか一項に記載の熱延鋼帯冷却設備。   The hot-rolled steel strip cooling equipment according to any one of claims 1 to 4, wherein a roller bearing that transports the steel strip in the splash region of the cooling water is shielded by a protective plate. 前記冷却水のスプラッシュ領域で前記鋼帯を搬送するローラの軸受を、ダブルシール構造にすることを特徴とする請求項１〜５の何れか一項に記載の熱延鋼帯冷却設備。
The hot-rolled steel strip cooling facility according to any one of claims 1 to 5, wherein a bearing of a roller that transports the steel strip in the splash region of the cooling water has a double seal structure.
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CN114273437A (en) * 2021-12-23 2022-04-05 广西柳州钢铁集团有限公司 Heat dissipation filter device for inlet guide of finishing mill
CN114273437B (en) * 2021-12-23 2023-10-13 广西柳州钢铁集团有限公司 Heat dissipation filter equipment of finishing mill entry guide

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