JP2000140929A - Scale scattering prevention method for hot rolled coil and its apparatus - Google Patents
Scale scattering prevention method for hot rolled coil and its apparatusInfo
- Publication number
- JP2000140929A JP2000140929A JP10318710A JP31871098A JP2000140929A JP 2000140929 A JP2000140929 A JP 2000140929A JP 10318710 A JP10318710 A JP 10318710A JP 31871098 A JP31871098 A JP 31871098A JP 2000140929 A JP2000140929 A JP 2000140929A
- Authority
- JP
- Japan
- Prior art keywords
- scale
- steel sheet
- gas
- prevention cover
- scattering prevention
- 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
Landscapes
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
(57)【要約】
【課題】 縞鋼板などのようなスケール剥離し易い熱延
コイルの簡便なスケール飛散防止方法およびその装置を
提供する。
【解決手段】 ペイオフリールで巻き戻された鋼板1を
スケール飛散防止カバー2内に搬送する工程と、スケー
ル飛散防止カバー2内において搬送中の鋼板1面に向け
て、鋼板の進行方向前方(4)および進行方向後方(3)から
対向するように所定の吹付け角度で所定の吹付け圧力の
気体を吹付けて、鋼板1のスケールを剥離する工程と、
スケール飛散防止カバー2内において搬送中の鋼板1面に
向けて、鋼板1の幅方向(5)に気体を吹付けて、剥離され
たスケールを鋼板1から飛散させる工程と、スケール飛
散防止カバー2内においてスケールを飛散させるために
吹付ける気体の下流側で飛散されたスケールを吸引する
(8)工程とを有してなる熱延コイルのスケール飛散防止
法など。
(57) [Problem] To provide a simple scale scattering prevention method and apparatus for a hot rolled coil, such as a striped steel sheet, which easily peels off scale. SOLUTION: The step of transporting the steel sheet 1 rewound by the payoff reel into the scale scattering prevention cover 2 and the step of transporting the steel sheet 1 in the scale scattering prevention cover 2 toward the surface of the steel sheet 1 being transported forward (4). And blowing the gas at a predetermined spray pressure at a predetermined spray angle so as to face from the rear in the traveling direction (3), and a step of peeling off the scale of the steel sheet 1,
A step of spraying gas in the width direction (5) of the steel sheet 1 toward the surface of the steel sheet 1 being conveyed in the scale scattering prevention cover 2 to scatter the peeled scale from the steel sheet 1; Suction of the scattered gas downstream of the gas blown to scatter the scale
And (8) a method for preventing scale scattering of a hot-rolled coil comprising the steps of:
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱延鋼板のコイル
（熱延コイル）、特にスケールの剥離し易い縞鋼板など
の熱延コイルのスケール飛散防止方法およびその装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for preventing the scale of a hot-rolled coil (hot-rolled coil), particularly a hot-rolled coil such as a striped steel sheet from which scale is easily peeled.
【０００２】[0002]
【従来の技術】滑り防止のために建築現場、駐車場の床
板や階段の踏み板などに用いられる表面に一定のピッチ
で突起が形成された縞鋼板は、通常の熱延鋼板の場合と
同様に、熱間圧延機により帯状に圧延された後、高温で
巻き取られ、熱延コイルとして製造される。2. Description of the Related Art A striped steel sheet having projections formed at a constant pitch on a surface used for floors of a construction site, a parking lot, a step board of a stair, and the like to prevent slippage is formed in the same manner as a normal hot-rolled steel sheet. After being rolled into a belt shape by a hot rolling mill, it is wound at a high temperature to produce a hot-rolled coil.
【０００３】巻き取り後の縞鋼板の熱延コイルは、その
表面に有する突起のためタイトに巻かれることはなく、
巻き目間に隙間があるのでこの隙間を介して常に大気に
曝された状態にある。そのため、鋼板表面では酸化反応
が促進されて剥離し易いスケールが形成される。[0003] The hot-rolled coil of striped steel sheet after winding is not tightly wound due to the projections on its surface.
Since there is a gap between the turns, the winding is always exposed to the atmosphere through this gap. Therefore, the oxidation reaction is promoted on the surface of the steel sheet to form a scale that easily peels off.
【０００４】こうした剥離し易いスケールの形成された
熱延コイルを、熱処理、酸洗、剪断、調質圧延などの後
工程で巻き戻す、いわゆるリコイルすると、スケールが
剥離、飛散して作業環境を汚染し、周辺機器の誤動作や
鋼板の表面疵を誘発し易い。[0004] If the hot-rolled coil on which such easily peelable scale is formed is unwound in a post-process such as heat treatment, pickling, shearing, and temper rolling, so-called recoil, the scale peels and scatters to contaminate the working environment. However, malfunctions of peripheral devices and surface flaws of the steel sheet are easily induced.
【０００５】熱延鋼板のスケールを除去するための方法
としては、通常行われている酸洗処理の他、特開平２−
１８２３１５号公報に記載されている高圧液体噴射によ
る方法、実開平２−１２３３０５号公報に記載されてい
るブラシロールによる方法などが提案されている。[0005] As a method for removing scale from a hot-rolled steel sheet, besides a usual pickling treatment, a method disclosed in Japanese Patent Application Laid-Open No.
A method using high-pressure liquid injection described in Japanese Patent No. 182315 and a method using a brush roll described in Japanese Utility Model Application Laid-Open No. 2-123305 have been proposed.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、こうし
たスケール除去法をリコイルラインに適用し、スケール
の剥離し易い熱延コイルのスケール飛散を防止するに
は、以下のような問題がある。However, there are the following problems in applying such a scale removing method to a recoil line to prevent the hot rolled coil from being easily peeled off scale from scattering.
【０００７】すなわち、通常の酸洗処理や特開平２−１
８２３１５号公報に記載された高圧液体噴射による方法
では、いずれも液体洗浄の大掛かりな設備が必要とされ
るが、そうした設備はリコイルラインに設置できない。That is, a normal pickling treatment or a method disclosed in
In any of the methods using high-pressure liquid injection described in Japanese Patent No. 82315, large-scale equipment for liquid cleaning is required, but such equipment cannot be installed in a recoil line.
【０００８】実開平２−１２３３０５号公報に記載され
ているブラシロールをリコイルラインに設置しても、ス
ケールの飛散を防止できない。また、縞鋼板のように表
面に突起がある場合はブラシロールの消耗が著しく、そ
の交換を頻繁に行う必要がありコスト高となる。[0008] Even if a brush roll described in Japanese Utility Model Laid-Open No. 2-123305 is installed in a recoil line, scattering of scale cannot be prevented. Further, when there is a protrusion on the surface such as a striped steel plate, the brush roll is significantly consumed, and it is necessary to frequently replace the brush roll, which increases the cost.
【０００９】本発明はこのような課題を解決するために
なされたもので、縞鋼板のようなスケール剥離し易い熱
延コイルの簡便なスケール飛散防止方法およびその装置
を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in order to solve such problems, and an object of the present invention is to provide a simple scale scattering prevention method for a hot-rolled coil, such as a striped steel sheet, which is easy to peel off scale and an apparatus therefor. .
【００１０】[0010]
【課題を解決するための手段】上記課題は、ペイオフリ
ールで巻き戻された鋼板をスケール飛散防止カバー内に
搬送する工程と、前記スケール飛散防止カバー内におい
て、前記搬送中の鋼板面に向けて、前記鋼板の進行方向
前方および進行方向後方から対向するように所定の吹付
け角度で所定の吹付け圧力の気体を吹付けて、前記鋼板
のスケールを剥離する工程と、前記スケール飛散防止カ
バー内において、前記搬送中の鋼板面に向けて、前記鋼
板の幅方向に気体を吹付けて、前記剥離されたスケール
を前記鋼板から飛散させる工程と、前記スケール飛散防
止カバー内において、前記スケールを飛散させるために
吹付ける気体の下流側で前記飛散されたスケールを吸引
する工程と、を有してなる熱延コイルのスケール飛散防
止法により解決される。SUMMARY OF THE INVENTION The object of the present invention is to convey a steel sheet rewound by a pay-off reel into a scale scattering prevention cover, and in the scale scattering prevention cover, toward a surface of the steel sheet being conveyed. Spraying gas at a predetermined spraying angle at a predetermined spraying angle so as to oppose the steel sheet in the advancing direction and the advancing direction of the steel sheet, and peeling off the scale of the steel sheet; In the step of spraying a gas in the width direction of the steel sheet toward the surface of the steel sheet being conveyed, the separated scale is scattered from the steel sheet, and the scale is scattered in the scale scatter prevention cover. Sucking the scattered scale on the downstream side of the gas to be blown to cause the scale to be scattered in the hot-rolled coil. That.
【００１１】熱延コイルをリコイル時に巻き戻す時、ペ
イオフリールにより巻き戻された鋼板をスケール飛散防
止カバー内に搬送し、スケール飛散防止カバー内で搬送
中の鋼板面に、鋼板の進行方向前方および進行方向後方
から対向するように所定の吹付け角度（鋼板面および鋼
板の進行方向と気体の吹付け方向とのなす角）で所定の
吹付け圧力の気体を吹付ければ、剥離し易いスケールを
外部へ飛散させることなく剥離できる。特に、鋼板の進
行方向前方および進行方向後方から対向するように気体
を吹付ければ、表面に突起のある縞鋼板のスケール剥離
に効果的である。When the hot-rolled coil is unwound during recoil, the steel sheet unwound by the pay-off reel is conveyed into the scale scattering prevention cover, and the steel sheet being conveyed in the scale scattering prevention cover is moved forward and forward in the traveling direction of the steel sheet. If a gas with a predetermined blowing pressure is blown at a predetermined spraying angle (the angle between the steel sheet surface and the direction in which the steel sheet advances and the gas blowing direction) so as to be opposed from the rear in the running direction, the scale that is easily peeled off can be formed. Peelable without scattering to the outside. In particular, if gas is blown so as to be opposed from the front in the traveling direction of the steel sheet and from the rear in the traveling direction, it is effective for scale peeling of a striped steel sheet having projections on the surface.
【００１２】この時、気体の吹付ける角度や吹付け圧力
は、巻き取り時に生成するスケールの性状や縞鋼板の突
起形状などによって適宜決める必要がある。At this time, the angle at which the gas is blown and the blowing pressure must be appropriately determined depending on the properties of the scale generated at the time of winding and the shape of the projections of the striped steel plate.
【００１３】剥離したスケールは鋼板面に再付着し、鋼
板の進行とともにスケール飛散防止カバーの外部へ運ば
れて飛散する恐れがある。そこで、スケール飛散防止カ
バー内で、搬送中の鋼板面に向けて鋼板の幅方向に気体
を吹付けて、再付着したスケールを鋼板から飛散させ、
吹付けた気体の下流側で飛散したスケールを吸引すれ
ば、スケール飛散防止カバー外へのスケールの飛散を確
実に防止でき、作業環境の汚染や周辺機器の誤動作を誘
発することはない。このとき、気体の吹付けは、剥離ス
ケールの吸引を確実にするため、すなわち吹付け方向と
吸引方向を一致させるために鋼板の幅方向に行う必要が
ある。また、その吹付け角や圧力は再付着したスケール
が吸引口の方へ飛散するような角度や圧力であればよ
い。The peeled scale may adhere again to the surface of the steel sheet, and may be carried outside the scale scattering prevention cover and scattered as the steel sheet advances. Therefore, in the scale scattering prevention cover, gas is blown in the width direction of the steel sheet toward the steel sheet surface being transported, and the re-adhered scale is scattered from the steel sheet,
If the scale scattered on the downstream side of the blown gas is sucked, the scale can be prevented from being scattered outside the scale scatter prevention cover, and the working environment is not polluted and peripheral devices do not malfunction. At this time, it is necessary to blow the gas in the width direction of the steel sheet in order to ensure suction of the peeling scale, that is, to make the blowing direction coincide with the suction direction. The spray angle and pressure may be any angle and pressure at which the re-adhered scale scatters toward the suction port.
【００１４】図３に、縞鋼板における鋼板面に対する気
体の吹付け角度、吹付け圧力とスケールの外部への飛散
状況を示す。図３で、鋼板の進行方向に対する気体の吹
付け角度は０°である。FIG. 3 shows the spray angle of the gas to the steel sheet surface, the spray pressure and the state of scattering of the scale to the outside in the striped steel sheet. In FIG. 3, the gas blowing angle with respect to the traveling direction of the steel sheet is 0 °.
【００１５】図４に、縞鋼板における鋼板の進行方向に
対する気体の吹付け角度、吹付け圧力とスケールの外部
への飛散状況を示す。図４で、鋼板面に対する気体の吹
付け角度は６０°である。FIG. 4 shows the blowing angle of the gas with respect to the traveling direction of the steel sheet in the striped steel sheet, the blowing pressure, and the state of scattering of the scale to the outside. In FIG. 4, the gas blowing angle with respect to the steel plate surface is 60 °.
【００１６】図３、４に示すように、縞鋼板では、気体
の吹付け角度を、鋼板面とは２０〜８０°の範囲にし、
鋼板の進行方向とは０〜６０°の範囲にして、気体の吹
付け圧力を４〜６ｋｇｆ／ｃｍ2の範囲にすれば、スケ
ールのスケール飛散防止カバー外部への飛散を確実に防
止できる。As shown in FIGS. 3 and 4, in the case of a striped steel sheet, the gas spraying angle is set in the range of 20 to 80 ° with respect to the steel sheet surface.
If the direction of travel of the steel sheet is in the range of 0 to 60 ° and the gas blowing pressure is in the range of 4 to 6 kgf / cm 2 , it is possible to reliably prevent the scale from scattering outside the scale scattering prevention cover.
【００１７】上記した熱延コイルのスケール飛散防止法
は、ペイオフリールに近接して設けられたスケール飛散
防止カバーと、スケール飛散防止カバー内に設けられ、
搬送中の鋼板面に、鋼板の進行方向前方および進行方向
後方から対向するように気体を吹付けるノズルと、スケ
ール飛散防止カバー内に設けられ、搬送中の鋼板面に向
けて、鋼板の幅方向に気体を吹付けるノズルと、スケー
ル飛散防止カバー内に設けられ、鋼板の幅方向に吹付け
る気体の下流側に位置する吸引口とを有してなる熱延コ
イルのスケール飛散防止装置によって実現できる。この
とき、鋼板の進行方向前方および進行方向後方から対向
するように気体を吹付けるノズルの数は、鋼板の幅に応
じて適宜決定する必要があるが、ノズル形状を水平方向
に偏平な楕円形状にすれば少ない数で効率よく剥離でき
る。なお、鋼板の幅方向に気体を吹付けるノズルの数は
少なくとも1個あれば十分である。According to the above-mentioned method for preventing scale scattering of a hot-rolled coil, a scale scattering prevention cover provided near a pay-off reel and a scale scattering prevention cover are provided inside the scale scattering prevention cover.
A nozzle that blows gas on the surface of the steel sheet being conveyed from the front in the traveling direction of the steel sheet and from the rear in the traveling direction, and is provided inside the scale scattering prevention cover. This can be realized by a scale scattering prevention device of a hot-rolled coil having a nozzle for blowing gas to the surface and a suction port provided in the scale scattering prevention cover and located on the downstream side of the gas to be blown in the width direction of the steel sheet. . At this time, the number of nozzles for blowing gas so as to be opposed from the front in the traveling direction and the rear in the traveling direction of the steel plate needs to be appropriately determined according to the width of the steel plate, but the nozzle shape is a flat elliptical shape in the horizontal direction. If it makes it, it can peel efficiently with a small number. It is sufficient that at least one nozzle blows gas in the width direction of the steel plate.
【００１８】吸引口のスケール飛散防止カバー外に突出
した部分に集塵装置やバキュームカーなどを接続すれ
ば、スケールをスケール飛散防止カバー外部に飛散させ
ることなく回収できる。If a dust collector or a vacuum car is connected to the portion of the suction port protruding outside the scale scattering prevention cover, the scale can be collected without being scattered outside the scale scattering prevention cover.
【００１９】このスケール飛散防止装置はペイオフリー
ルにできるだけ近接して設けた方が好ましい。It is preferable that the scale scattering prevention device is provided as close as possible to the payoff reel.
【００２０】鋼板の進行方向前方および進行方向後方か
ら対向するように気体を吹付けるノズルや鋼板の幅方向
に気体を吹付けるノズルを鋼板の上下面の両方に設けれ
ば、縞鋼板の突起のある面が上下どちらになっても問題
なくスケールの飛散を防止できる。If the nozzles for blowing gas and the nozzles for blowing gas in the width direction of the steel sheet are provided on both the upper and lower surfaces of the steel sheet so as to face each other from the front in the traveling direction and the rear in the traveling direction of the steel sheet, the projections of the striped steel sheet can be formed. Scattering of the scale can be prevented without any problem whether a certain surface is up or down.
【００２１】以上、述べた熱延コイルのスケール飛散防
止方法やその装置は、リコイルラインに適用でき、簡便
な方法、装置といえる。The method and apparatus for preventing scale scattering of a hot-rolled coil described above can be applied to a recoil line and can be said to be simple methods and apparatuses.
【００２２】[0022]
【発明の実施の形態】図１に、本発明である装置の１実
施の形態を模式的に示す。FIG. 1 schematically shows an embodiment of the apparatus according to the present invention.
【００２３】図２に、図１の装置の側面図を示す。鋼板
１をゴム製カーテン９を介して搬入出できるスケール飛
散防止カバー２内には、鋼板１の幅方向にわたって鋼板
1の上下面に気体を吹付けることのできる複数のノズル
３、４を備えた４本のヘッダー６が設けられており、各
ヘッダー６にはスケール飛散防止カバー２の外部から所
定の圧力の気体が供給される。ここで、ノズル３は鋼板
１の進行方向後方から気体を吹付けるノズルで、ノズル
４は鋼板１の進行方向前方から気体を吹付けるノズルで
ある。ヘッダー６に供給された圧力気体はノズル３、４
から鋼板1面で対向するように所定の吹付け角で噴出さ
れ、気体の吹付けられ鋼板１の部分のスケールを剥離す
る。FIG. 2 shows a side view of the apparatus of FIG. Inside the scale scattering prevention cover 2, which can carry in and out the steel sheet 1 through the rubber curtain 9, the steel sheet 1 extends in the width direction of the steel sheet 1.
1 is provided with four headers 6 provided with a plurality of nozzles 3 and 4 capable of spraying gas to the upper and lower surfaces. Is supplied. Here, the nozzle 3 is a nozzle that blows gas from the rear in the traveling direction of the steel plate 1, and the nozzle 4 is a nozzle that blows gas from the front in the traveling direction of the steel plate 1. The pressurized gas supplied to the header 6 is supplied to the nozzles 3 and 4
From the steel plate 1 at a predetermined spray angle so as to be opposed to each other, and the gas is blown to peel off the scale of the portion of the steel plate 1.
【００２４】ノズル３のヘッダー６とノズル４のヘッダ
ー６の間には、鋼板１の幅方向に気体を吹付けるノズル
５が設けられており、スケール飛散防止カバー２の外部
から所定の圧力の気体がヘッダー７を介して供給され所
定の圧力の気体が所定の吹付け角で噴出され、剥離後鋼
板1面に付着したスケールを飛散させる。鋼板１の幅方
向に吹付けられる気体の下流側には、スケール飛散防止
カバー２の外部で集塵装置などに接続されている吸引口
８が設けられており、ノズル５から気体を吹付けるのと
同時に吸引すれば、飛散されたスケールがこの吸引口８
から吸引される。Between the header 6 of the nozzle 3 and the header 6 of the nozzle 4, a nozzle 5 for blowing gas in the width direction of the steel plate 1 is provided. Is supplied through the header 7 and a gas of a predetermined pressure is jetted at a predetermined spray angle to scatter the scale adhering to the steel sheet 1 after peeling. Downstream of the gas blown in the width direction of the steel plate 1, a suction port 8 connected to a dust collecting device or the like outside the scale scattering prevention cover 2 is provided. At the same time, if the suction is performed, the scattered scale
Is sucked from.
【００２５】したがって、鋼板１は、剥離し易いスケー
ルが完全に除去された後にスケール飛散防止カバー２か
ら搬出されるので、外部へのスケール飛散が確実に防止
される。Therefore, the steel sheet 1 is carried out of the scale scattering prevention cover 2 after the scale that is easily peeled is completely removed, so that the scale scattering to the outside is reliably prevented.
【００２６】[0026]
【実施例】図１、２に示す装置を、リコイルラインのペ
イオフリール近傍に設置し、板厚２．５〜６．０ｍｍの
ステンレス縞鋼板を搬送し、表１に示す仕様のスケール
剥離用および飛散用ノズルを表２に示す条件で開閉し
て、リコイルラインのスケール飛散状況を調査した。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The apparatus shown in FIGS. 1 and 2 is installed near a pay-off reel in a recoil line, and conveys a stainless steel strip steel sheet having a thickness of 2.5 to 6.0 mm. The scattering nozzle was opened and closed under the conditions shown in Table 2 to investigate the scale scattering state of the recoil line.
【００２７】結果を表２に示す。少なくとも突起のある
面で、鋼板の進行方向前方および後方から空気を吹付け
るスケール剥離用ノズルと鋼板の幅方向に空気を吹付け
るスケール飛散用ノズルを併用すれば、スケールの飛散
が起らないことがわかる。The results are shown in Table 2. At least on the surface with the projections, if the scale peeling nozzle that blows air from the front and back in the traveling direction of the steel sheet and the scale scattering nozzle that blows air in the width direction of the steel sheet are used together, the scale will not scatter. I understand.
【００２８】[0028]
【表１】 [Table 1]
【００２９】[0029]
【表２】 [Table 2]
【００３０】[0030]
【発明の効果】本発明は以上説明したように構成されて
いるので、縞鋼板などのようなスケール剥離し易い熱延
コイルの簡便なスケール飛散防止方法およびその装置を
提供できる。また、気体を用いているため、耳波みや中
伸びなどを有するコイルでも、確実にスケールの飛散を
防止できる。Since the present invention is configured as described above, it is possible to provide a simple method for preventing scale scattering of a hot-rolled coil such as a striped steel plate which is easily peeled off, and a device therefor. In addition, since gas is used, even if the coil has ear waves or medium elongation, it is possible to reliably prevent the scale from scattering.
【図１】本発明である装置の１実施の形態を模式図であ
る。FIG. 1 is a schematic view of an embodiment of an apparatus according to the present invention.
【図２】図１の装置の側面図である。FIG. 2 is a side view of the apparatus of FIG.
【図３】縞鋼板における鋼板面に対する気体の吹付け角
度、吹付け圧力とスケールの外部への飛散状況を示す。FIG. 3 shows the spray angle of the gas to the steel sheet surface, the spray pressure, and the state of scattering of the scale to the outside in the striped steel sheet.
【図４】縞鋼板における鋼板の進行方向に対する気体の
吹付け角度、吹付け圧力とスケールの外部への飛散状況
を示す。FIG. 4 shows the spray angle of the gas, the spray pressure and the scattering state of the scale to the outside in the striped steel sheet with respect to the traveling direction of the steel sheet.
１ 鋼板 ２ スケール飛散防止カバー ３ 鋼板の進行方向後方から気体を吹付けるノズル ４ 鋼板の進行方向前方から気体を吹付けるノズル ５ 鋼板の幅方向に気体を吹付けるノズル ６ ノズル３およびノズル４のヘッダー ７ ノズル５のヘッダー ８ 吸引口 ９ ゴム製カーテン DESCRIPTION OF SYMBOLS 1 Steel plate 2 Scale scattering prevention cover 3 Nozzle which blows gas from the back of the progress direction of a steel plate 4 Nozzle which blows gas from the front of the progress direction of a steel plate 5 Nozzle which blows gas in the width direction of a steel plate 6 Header of nozzle 3 and nozzle 4 7 Header of nozzle 5 8 Suction port 9 Rubber curtain
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高野 俊夫 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 塩川 伸一 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 (72)発明者 淵上 龍之介 東京都千代田区丸の内一丁目１番２号 日 本鋼管株式会社内 Ｆターム(参考） 4K053 PA02 PA12 QA01 SA19 TA02 XA22 YA28 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Takano 1-1-2 Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Inventor Shinichi Shiokawa 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Sun (72) Inventor Ryunosuke Fuchigami 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan F-term (reference) 4K053 PA02 PA12 QA01 SA19 TA02 XA22 YA28
Claims (3)
ケール飛散防止カバー内に搬送する工程と、前記スケー
ル飛散防止カバー内において、前記搬送中の鋼板面に向
けて、前記鋼板の進行方向前方および進行方向後方から
対向するように所定の吹付け角度で所定の吹付け圧力の
気体を吹付けて、前記鋼板のスケールを剥離する工程
と、前記スケール飛散防止カバー内において、前記搬送
中の鋼板面に向けて、前記鋼板の幅方向に気体を吹付け
て、前記剥離されたスケールを前記鋼板から飛散させる
工程と、前記スケール飛散防止カバー内において、前記
スケールを飛散させるために吹付ける気体の下流側で前
記飛散されたスケールを吸引する工程と、を有してなる
熱延コイルのスケール飛散防止法。1. A step of transporting a steel sheet rewound by a payoff reel into a scale scattering prevention cover, and in the scale scattering prevention cover, in the direction of travel of the steel sheet toward the surface of the steel sheet being transported. Blowing a gas having a predetermined blowing pressure at a predetermined blowing angle so as to be opposed from the rear in the traveling direction, and peeling off the scale of the steel sheet, and in the scale scattering prevention cover, the surface of the steel sheet being conveyed. A step of blowing gas in the width direction of the steel sheet to scatter the peeled scale from the steel sheet, and in the scale scattering prevention cover, downstream of the gas blown to blow the scale. Suctioning the scattered scale on the side of the hot rolled coil.
角度を、鋼板面とは２０〜８０°の範囲に、鋼板の進行
方向とは０〜６０°の範囲にし、気体の吹付け圧力を４
〜６ｋｇｆ／ｃｍ2の範囲にする請求項１に記載の熱延
コイルのスケール飛散防止法。2. The gas spraying angle for peeling the scale is set in the range of 20 to 80 ° with respect to the steel sheet surface and in the range of 0 to 60 ° with the direction of travel of the steel sheet. 4
The method for preventing scale scattering of a hot-rolled coil according to claim 1, wherein the method is in a range of from about 6 kgf / cm2 to about 6 kgf / cm2.
ケール飛散防止カバーと、前記スケール飛散防止カバー
内に設けられ、搬送中の鋼板面に、前記鋼板の進行方向
前方および進行方向後方から対向するように気体を吹付
けるノズルと、前記スケール飛散防止カバー内に設けら
れ、前記搬送中の鋼板面に向けて、前記鋼板の幅方向に
気体を吹付けるノズルと、前記スケール飛散防止カバー
内に設けられ、前記鋼板の幅方向に吹付ける気体の下流
側に位置する吸引口と、を有してなる熱延コイルのスケ
ール飛散防止装置。3. A scale scatter prevention cover provided near a payoff reel, and a steel sheet surface provided in the scale scatter prevention cover and opposed to a surface of a steel sheet being conveyed from the front in the traveling direction of the steel sheet and from the rear in the traveling direction. A nozzle that blows gas and a nozzle that is provided in the scale scattering prevention cover and blows gas in the width direction of the steel sheet toward the surface of the steel sheet being conveyed, and is provided in the scale scattering prevention cover. And a suction port located on the downstream side of the gas blown in the width direction of the steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10318710A JP2000140929A (en) | 1998-11-10 | 1998-11-10 | Scale scattering prevention method for hot rolled coil and its apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10318710A JP2000140929A (en) | 1998-11-10 | 1998-11-10 | Scale scattering prevention method for hot rolled coil and its apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000140929A true JP2000140929A (en) | 2000-05-23 |
Family
ID=18102130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10318710A Pending JP2000140929A (en) | 1998-11-10 | 1998-11-10 | Scale scattering prevention method for hot rolled coil and its apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000140929A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009145353A1 (en) * | 2008-05-30 | 2009-12-03 | 新日本製鐵株式会社 | Pickling method for steel plates, and pickling apparatus |
| KR101051292B1 (en) * | 2008-09-25 | 2011-07-22 | 현대제철 주식회사 | Descaling device for slabs |
| CN103272862A (en) * | 2010-09-25 | 2013-09-04 | 襄阳宇清传动科技有限公司 | Pickling line scale breaking withdrawal and straightening machine |
| CN108246815A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | For cold-rolling pickling aligning and the blow device and its application method of straightening section strip steel |
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1998
- 1998-11-10 JP JP10318710A patent/JP2000140929A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009145353A1 (en) * | 2008-05-30 | 2009-12-03 | 新日本製鐵株式会社 | Pickling method for steel plates, and pickling apparatus |
| US20110079244A1 (en) * | 2008-05-30 | 2011-04-07 | Kenichi Uemura | Pickling method and pickling system of steel sheet |
| JP4714800B2 (en) * | 2008-05-30 | 2011-06-29 | 新日本製鐵株式会社 | Steel plate pickling method and pickling device |
| KR101249167B1 (en) * | 2008-05-30 | 2013-03-29 | 신닛테츠스미킨 카부시키카이샤 | Pickling method for steel plates, and pickling apparatus |
| EP2302102A4 (en) * | 2008-05-30 | 2015-07-15 | Nippon Steel & Sumitomo Metal Corp | METALING METHOD FOR STEEL PLATES AND BEIZVORICHTUNG |
| KR101051292B1 (en) * | 2008-09-25 | 2011-07-22 | 현대제철 주식회사 | Descaling device for slabs |
| CN103272862A (en) * | 2010-09-25 | 2013-09-04 | 襄阳宇清传动科技有限公司 | Pickling line scale breaking withdrawal and straightening machine |
| CN108246815A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | For cold-rolling pickling aligning and the blow device and its application method of straightening section strip steel |
| CN108246815B (en) * | 2016-12-28 | 2019-07-30 | 宝钢工程技术集团有限公司 | Blow device and its application method for cold-rolling pickling aligning and straightening section strip steel |
| CN113600624A (en) * | 2021-08-18 | 2021-11-05 | 燕山大学 | Device for removing oxidized fine iron powder on surface of plate strip |
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