JP2011255388A - Scale removal device for high temperature cast slab - Google Patents

Scale removal device for high temperature cast slab Download PDF

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JP2011255388A
JP2011255388A JP2010129804A JP2010129804A JP2011255388A JP 2011255388 A JP2011255388 A JP 2011255388A JP 2010129804 A JP2010129804 A JP 2010129804A JP 2010129804 A JP2010129804 A JP 2010129804A JP 2011255388 A JP2011255388 A JP 2011255388A
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slab
scale
high temperature
brush
compressed air
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JP5691251B2 (en
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Kenji Hatori
賢治 羽鳥
Toshiaki Saito
俊昭 齋藤
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JFE Steel Corp
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JFE Steel Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a hot scale removal device which has no adverse influence such as temperature drop and production of a flaw on a steel slab while maintaining its durability when removing the scale of a high temperature steel material, and further, can follow the surface shape of the steel slab, and a hot scale removal method.SOLUTION: The scale removal device for removing the oxidized scale produced at the surface of the high temperature steel slab, includes a brush roller 1 rotating in contact with the surface of the high temperature steel slab 12 and also movable up and down. In the brush roller, the roller rotating face is provided with brushes made of steel and compressed air jet ports spirally alternately in the axial direction of the brush roller.

Description

本発明は、高温鋳片の表面スケールを熱間で除去する装置に関するものである。   The present invention relates to an apparatus for removing the surface scale of a high temperature slab hot.

高温鋳片に生成する酸化スケールは、ポーラスな酸化物であり熱伝導度が小さいので、酸化スケールが鋳片全体を覆った場合は、鋼片加熱炉で再加熱する場合は、熱効率が悪い。また、局部的に酸化スケールが鋳片を覆った場合は、鋳片に温度むらが発生し品質むらの原因となる。また、圧延中には、酸化スケールの付着は鋼板での疵の原因となる。従って、鋼片加熱炉の直前および加熱装置と圧延装置の間のいずれかあるいは双方で酸化スケールを除去することは不可欠である。   Since the oxide scale generated in the high-temperature slab is a porous oxide and has a low thermal conductivity, when the oxide scale covers the entire slab, thermal efficiency is poor when reheating in a steel slab heating furnace. In addition, when the oxide scale locally covers the slab, temperature unevenness occurs in the slab, causing quality unevenness. Also, during rolling, the adhesion of oxide scale causes wrinkles on the steel sheet. Therefore, it is essential to remove the oxide scale immediately before the billet furnace and / or between the heating device and the rolling device.

高温鋳片のスケール除去方法としては、圧縮空気に水を混入して噴出させる高圧スプレーによる方法がある。特許文献1には、スケール表面を冷却し、スケールと母材との熱膨張差を利用して剥離させると同時に、デスケーラーから噴射される高圧水により物理的に除去する技術が開示されており、脱スケールの効果は大きい。   As a method for removing the scale of the high-temperature slab, there is a method using high-pressure spray in which water is mixed into the compressed air and ejected. Patent Document 1 discloses a technique for cooling the scale surface and peeling it using the difference in thermal expansion between the scale and the base material, and at the same time physically removing the high pressure water sprayed from the descaler. The effect of descaling is great.

特許文献2には、回転切削工具でスケールを切削除去する技術が開示されている。また、切削工具に替えて円形砥石を高速回転してスケールを除去する方法もある。   Patent Document 2 discloses a technique for cutting and removing a scale with a rotary cutting tool. There is also a method of removing the scale by rotating the circular grindstone at a high speed instead of the cutting tool.

特許文献3には、薄板連続鋳造装置において、インラインミルによる熱間圧延の前段階にスチールブラシロールを設置して鋳片に付着した酸化スケールを除去した後に熱間圧延を行う技術が記載されている。   Patent Document 3 describes a technique for performing hot rolling after a steel brush roll is installed at a stage before hot rolling by an in-line mill to remove oxide scale attached to a slab in a thin plate continuous casting apparatus. Yes.

特許文献4には、熱鋼片の表面に圧接し、且つ上下動可能に設けられたブラシロールと飛散するスケールに霧化した水を噴霧する水噴霧装置とからなるスケール除去装置が開示されている。   Patent Document 4 discloses a scale removing device that includes a brush roll that is brought into pressure contact with the surface of a hot steel piece and is movable up and down and a water spraying device that sprays atomized water onto a scattering scale. Yes.

特開昭59−19019号公報JP 59-19019 特開平8−103812号公報JP-A-8-103812 特開昭61−219448号公報Japanese Patent Laid-Open No. 61-219448 特開平1−91908号公報JP-A-1-91908

特許文献1の技術は高圧水を、また特許文献4の技術は霧化した水を噴霧する水噴霧装置を使用するので、連続鋳造後、極力高温でスラブを加熱炉に装入する熱片装入では、水により鋼片温度を低下させることになるので使用し難いという問題がある。   The technique of Patent Document 1 uses high-pressure water, and the technique of Patent Document 4 uses a water spray device that sprays atomized water. On, there is a problem that it is difficult to use because the steel slab temperature is lowered by water.

特許文献2の技術は、鋼片表面を切削除去するので、歩留まりが低下するという問題がある。また、砥石による研削は、砥石と鋳片との接触面積が小さいため、大きな面積を研削するのは作業効率が低く、また接触面圧が大きいためスケール層だけでなく母材も削ってしまい歩留まりが低いという問題がある。   The technique of Patent Document 2 has a problem that the yield decreases because the surface of the steel slab is removed by cutting. Grinding with a grindstone has a small contact area between the grindstone and the cast slab, so grinding a large area is low in work efficiency, and because the contact surface pressure is large, not only the scale layer but also the base material is shaved, yielding. There is a problem that is low.

特許文献3の技術は、鋳片の温度を低下させずにスケールを除去できる点で優れているが、ブラシロールが常に高温に晒されるのでブラシロールの耐用度が低いという問題がある。   The technique of Patent Document 3 is excellent in that the scale can be removed without lowering the temperature of the slab, but there is a problem that the durability of the brush roll is low because the brush roll is always exposed to high temperatures.

本発明は、高温鋼材のスケール除去にあたり、耐久性を保持しつつ、鋼片への温度低下や疵生成等の悪影響がなく、さらに、鋼片の表面形状に追従できる熱間スケール除去装置およびその方法を提供する。   The present invention provides a hot scale removing device capable of following the surface shape of a steel slab without detrimental effects such as temperature drop and flaw formation on the steel slab while maintaining durability when removing the scale of the high-temperature steel material. Provide a method.

発明者等は、前記課題を解決するために、温度を極力低下させずに高温鋳片の表面に生じたスケールを除去する装置として多数の鋼製ワイヤブラシを高速回転させることで、鋳片表面のスケール除去を可能としたものである。また、500℃を超える高温鋳片表面のスケールの除去も可能とするため、ワイヤブラシとワイヤブラシとの間から圧縮空気を噴射させてワイヤブラシを冷却できる機能を付加している。従って、ワイヤブラシの冷却に水を使わないので高温鋳片の表面温度を低下させることがないので、水冷による場合の温度低下による表面スケールの固着が発生せず、スケールを高温度で剥離することができる。   In order to solve the above-mentioned problems, the inventors have rotated a large number of steel wire brushes as a device for removing the scale generated on the surface of the high-temperature slab without reducing the temperature as much as possible, thereby allowing the slab surface to rotate. The scale can be removed. In addition, in order to be able to remove the scale on the surface of the high-temperature slab exceeding 500 ° C., a function of cooling the wire brush by injecting compressed air from between the wire brush and the wire brush is added. Therefore, since water is not used for cooling the wire brush, the surface temperature of the high-temperature slab is not lowered, so that the scale does not stick to the surface due to the temperature drop caused by water cooling, and the scale is peeled off at a high temperature. Can do.

さらに、ワイヤブラシは高温鋳片の幅中心から幅方向左右にロール表面をスパイラル状に旋回しており、圧縮空気の噴出口もワイヤブラシの旋回方向に沿って設置しているのでワイヤブラシの回転力と圧縮空気の噴射力により、剥離したスケールは高温鋳片の幅方向左右に迅速に除去されるので、剥離したスケールが高温鋳片表面に堆積することはない。   In addition, the wire brush spirally swivels the roll surface from the center of the width of the high-temperature slab to the left and right in the width direction, and the outlet of the compressed air is also installed along the direction of rotation of the wire brush. Because the peeled scale is quickly removed from the left and right in the width direction of the high temperature slab by the force and the jet force of the compressed air, the peeled scale does not accumulate on the high temperature slab surface.

本発明の要旨は以下の通りである。   The gist of the present invention is as follows.

第一の発明は、高温鋼片の表面に発生する酸化スケールを除去するスケール除去装置において、前記高温鋼片の表面に接触して回転し、且つ上下動可能なブラシロールを有し、該ブラシロールにはロール回転面に鋼製ブラシと圧縮空気噴出口とが前記ブラシロールの軸方向に交互に螺旋状に設けられていることを特徴とする高温鋼片のスケール除去装置である。   1st invention is a scale removal apparatus which removes the oxide scale which generate | occur | produces on the surface of a high temperature steel slab, It has a brush roll which rotates in contact with the surface of the said high temperature steel slab, and can move up and down, and this brush The roll is provided with a scale removing device for high-temperature steel pieces, in which a steel brush and a compressed air outlet are spirally provided alternately on the roll rotating surface in the axial direction of the brush roll.

第二の発明は、前記ブラシロールに螺旋状に設けられた鋼製ブラシと圧縮空気噴出口との旋回方向が、前記ブラシロールの軸方向中心部を境に左右逆になっていることを特徴とする第一の発明に記載の高温鋳片のスケール除去装置である。   According to a second aspect of the invention, the turning direction of the steel brush spirally provided on the brush roll and the compressed air outlet is reversed left and right with respect to the axial center of the brush roll. The scale removing apparatus for a high temperature cast slab according to the first invention.

第三の発明は、ライン上を搬送される高温鋳片の表面に鋼製ブラシと圧縮空気噴出口がブラシロールの軸方向に交互に螺旋状に設けられたブラシロールを押圧し、高温鋳片の搬送方向と逆方向に回転して高温鋳片の表面から酸化スケールを剥離し、且つ圧縮空気を噴出して酸化スケールを高温鋳片の表面から除去することを特徴とする高温鋳片のスケール除去方法である。   According to a third aspect of the present invention, a high temperature slab is formed by pressing a brush roll in which steel brushes and compressed air outlets are alternately spiraled in the axial direction of the brush roll on the surface of the high temperature slab conveyed on the line. The scale of the high-temperature slab is characterized in that the scale is peeled off from the surface of the high-temperature slab by rotating in the direction opposite to the conveying direction of the slab and the oxide scale is removed from the surface of the high-temperature slab by jetting compressed air It is a removal method.

本発明は、ワイヤブラシを自立回転するロールの表面にロール軸方向左右にスパイラル状に取り付け、さらにワイヤブラシの間から圧縮空気を噴射するようにしたので、剥離したスケールは短時間で鋳片幅方向に除去され鋳片上に堆積することはない。また、ワイヤブラシは圧縮空気で冷却されるので、500℃を超える高温鋳片のスケール除去を長時間行ってもワイヤが殆ど摩滅損耗することがない。さらに本発明は、水を使用しないので、鋳片の温度を急激に下げることがない。   In the present invention, the wire brush is attached to the surface of the roll that rotates independently, spirally in the left and right directions in the roll axis direction, and compressed air is sprayed from between the wire brushes. It is removed in the direction and does not accumulate on the slab. Further, since the wire brush is cooled by compressed air, the wire is hardly worn away even if the scale removal of the high temperature slab exceeding 500 ° C. is performed for a long time. Furthermore, since the present invention does not use water, the temperature of the slab is not lowered rapidly.

スケール除去装置の概略を示す図である。It is a figure which shows the outline of a scale removal apparatus. スケール除去ブラシロールの外観を示す図である。It is a figure which shows the external appearance of a scale removal brush roll. スケール除去ブラシロールの断面を示す図である。It is a figure which shows the cross section of a scale removal brush roll. 空気噴出口の配置例を示す図である。It is a figure which shows the example of arrangement | positioning of an air jet nozzle.

以下、図面を参照して本発明の好ましい実施の形態を説明する。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

スケール除去装置の概略を図1に示す。   An outline of the scale removing device is shown in FIG.

スケール除去装置は、スラブの搬送ラインテーブルと干渉しないように門型の構造となっている(図1(a)正面図、(b)側面図)。ブラシロール1は、スラブ搬送ラインと直角方向に搬送ラインを横断するように門型の架構に取り付けられ、モーターで回転し、ラインテーブルの搬送ロール11によって運ばれてきたスラブ12の上表面にアクチュエータにより昇降、下降可能となっている。   The scale removing device has a gate-type structure so as not to interfere with the slab transfer line table (FIG. 1 (a) front view, (b) side view). The brush roll 1 is attached to a gate-shaped frame so as to cross the conveyance line in a direction perpendicular to the slab conveyance line, is rotated by a motor, and is applied to the upper surface of the slab 12 carried by the conveyance roll 11 of the line table. Can be moved up and down.

ブラシロール1の外観を図2に、その拡大図を図3に、圧縮空気噴出口2の断面方向位置を図4に示す。   The appearance of the brush roll 1 is shown in FIG. 2, its enlarged view is shown in FIG.

ブラシロール1の外表面にはワイヤーブラシ3がスパイラル状に等間隔に植えられ、ワイヤーブラシ3とワイヤーブラシ3との間には圧縮空気噴出口2が等間隔に並んでいる。   Wire brushes 3 are planted at regular intervals in a spiral shape on the outer surface of the brush roll 1, and compressed air outlets 2 are arranged at regular intervals between the wire brushes 3 and 3.

ワイヤーブラシ3および圧縮空気噴出口2の螺旋の旋回方向はブラシロール1の軸長さ中央部を境として左右で逆転するようになっている。また、ブラシロールは円筒状のロールであり、ロール端部から円筒内に圧縮空気が送りこまれ、圧縮空気噴出口2はブラシロール1の周方向に一定間隔(例えば、図4では30度間隔)で配置されている。   The spiral turning directions of the wire brush 3 and the compressed air jet nozzle 2 are reversed on the left and right with the central portion of the axial length of the brush roll 1 as a boundary. The brush roll is a cylindrical roll, and compressed air is fed into the cylinder from the end of the roll, and the compressed air outlet 2 is spaced at a constant interval in the circumferential direction of the brush roll 1 (for example, 30 degrees in FIG. 4). Is arranged in.

ワイヤーブラシ3および圧縮空気噴出口2を上記したように配置することによりスラブ12表面で剥離した酸化スケールは、スラブ12幅方向両側に短時間で排除することができる。
また、ワイヤーブラシ3および圧縮空気噴出口2の配置は、スケールの発生状況に応じて、噴出口の径は必要圧縮空気の圧力、流量により適宜決めるのが良い。
By arranging the wire brush 3 and the compressed air outlet 2 as described above, the oxide scale peeled off from the surface of the slab 12 can be removed in a short time on both sides of the slab 12 in the width direction.
In addition, the arrangement of the wire brush 3 and the compressed air outlet 2 may be appropriately determined depending on the scale generation state, and the diameter of the outlet depending on the pressure and flow rate of the necessary compressed air.

さらに、ワイヤーブラシ3の高さもスラブ12の表面温度やスケールの発生量に応じて適宜決めるのが良い。好ましくは、噴出口の径は1.0mmφから7.0mmφ、圧縮空気の圧力は0.5MPaから1.0MPa、流量は0.3m/秒から0.7m/秒がよい。また、ワイヤーブラシ3の高さは35mmから45mmがよい。 Furthermore, the height of the wire brush 3 may be appropriately determined according to the surface temperature of the slab 12 and the amount of scale generated. Preferably, the diameter of the jet port is 1.0 mm to 7.0 mmφ, the pressure of the compressed air is 0.5 MPa to 1.0 MPa, and the flow rate is 0.3 m 3 / sec to 0.7 m 3 / sec. The height of the wire brush 3 is preferably 35 mm to 45 mm.

1 ロール
2 空気吹出し口
3 ブラシ
11 搬送ロール
12 スラブ
1 Roll 2 Air outlet 3 Brush 11 Transport roll 12 Slab

Claims (3)

高温鋼片の表面に発生する酸化スケールを除去するスケール除去装置において、前記高温鋼片の表面に接触して回転し、且つ上下動可能なブラシロールを有し、該ブラシロールにはロール回転面に鋼製ブラシと圧縮空気噴出口とが前記ブラシロールの軸方向に交互に螺旋状に設けられていることを特徴とする高温鋼片のスケール除去装置。   In the scale removing apparatus for removing oxidized scale generated on the surface of the high temperature steel slab, the brush roll has a brush roll that rotates in contact with the surface of the high temperature steel slab and can move up and down. And a steel brush and a compressed air outlet are alternately provided spirally in the axial direction of the brush roll. 前記ブラシロールに螺旋状に設けられた鋼製ブラシと圧縮空気噴出口との旋回方向が、前記ブラシロールの軸方向中心部を境に左右逆になっていることを特徴とする請求項1に記載の高温鋳片のスケール除去装置。   The swirl direction of the steel brush spirally provided on the brush roll and the compressed air outlet is reversed left and right with respect to the axial center of the brush roll. Descaler for high temperature slab as described. ライン上を搬送される高温鋳片の表面に鋼製ブラシと圧縮空気噴出口がブラシロールの軸方向に交互に螺旋状に設けられたブラシロールを押圧し、高温鋳片の搬送方向と逆方向に回転して高温鋳片の表面から酸化スケールを剥離し、且つ圧縮空気を噴出して酸化スケールを高温鋳片の表面から除去することを特徴とする高温鋳片のスケール除去方法。   A steel brush and a compressed air outlet are alternately spiraled in the axial direction of the brush roll on the surface of the high temperature slab conveyed on the line, and the direction opposite to the conveyance direction of the high temperature slab And removing the oxide scale from the surface of the high-temperature slab, and removing compressed oxide from the surface of the high-temperature slab by ejecting compressed air.
JP2010129804A 2010-06-07 2010-06-07 High temperature slab scale remover Active JP5691251B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102764778A (en) * 2012-06-28 2012-11-07 宝山钢铁股份有限公司 Inner surface and outer surface jet flow descaling system and method for big-diameter metal pipe wall
CN107116006A (en) * 2017-05-17 2017-09-01 河钢股份有限公司邯郸分公司 A kind of automatic brush-coating device of heavy rail steel billet anticreep carbon coating
CN107650000A (en) * 2017-09-27 2018-02-02 邯郸钢铁集团有限责任公司 A kind of quick device for removing Properties of Heavy Rail Steel oxidized iron sheets on surface of casting blank
CN114030848A (en) * 2021-12-14 2022-02-11 吉林恒联精密铸造科技有限公司 Multifunctional cleaning device for hot-rolled steel strip conveying roller way

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234618A (en) * 1985-08-09 1987-02-14 Nippon Kokan Kk <Nkk> Descaling brush device for steel slab
JP2010099579A (en) * 2008-10-23 2010-05-06 Kowa Co Ltd Brush roller, and cleaner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6234618A (en) * 1985-08-09 1987-02-14 Nippon Kokan Kk <Nkk> Descaling brush device for steel slab
JP2010099579A (en) * 2008-10-23 2010-05-06 Kowa Co Ltd Brush roller, and cleaner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102764778A (en) * 2012-06-28 2012-11-07 宝山钢铁股份有限公司 Inner surface and outer surface jet flow descaling system and method for big-diameter metal pipe wall
CN102764778B (en) * 2012-06-28 2014-12-03 宝山钢铁股份有限公司 Inner surface and outer surface jet flow descaling system and method for big-diameter metal pipe wall
CN107116006A (en) * 2017-05-17 2017-09-01 河钢股份有限公司邯郸分公司 A kind of automatic brush-coating device of heavy rail steel billet anticreep carbon coating
CN107650000A (en) * 2017-09-27 2018-02-02 邯郸钢铁集团有限责任公司 A kind of quick device for removing Properties of Heavy Rail Steel oxidized iron sheets on surface of casting blank
CN114030848A (en) * 2021-12-14 2022-02-11 吉林恒联精密铸造科技有限公司 Multifunctional cleaning device for hot-rolled steel strip conveying roller way

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