JPS5976616A - Method and device for descaling - Google Patents
Method and device for descalingInfo
- Publication number
- JPS5976616A JPS5976616A JP18989982A JP18989982A JPS5976616A JP S5976616 A JPS5976616 A JP S5976616A JP 18989982 A JP18989982 A JP 18989982A JP 18989982 A JP18989982 A JP 18989982A JP S5976616 A JPS5976616 A JP S5976616A
- Authority
- JP
- Japan
- Prior art keywords
- slab
- valve
- valves
- pressurized water
- nozzle
- 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
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
- B21B45/04—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 de-scaling, e.g. by brushing
- B21B45/08—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 de-scaling, e.g. by brushing hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
- B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
- B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
- B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid
-
- 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
Abstract
Description
【発明の詳細な説明】
工程で採用されているデスケーリングシステムを改良し
、スラブの態様に適応したデスケーリングを行うことを
目的とするものであって、圧延設備におけるデスケーリ
ング装置において、ノズルヘッダーに設けた複数のスプ
レイノズルから選択的に高圧水を噴出させることを特徴
とするデスケーリング法およびその装置に関するもので
ある・本発明を図面に示す実施例について説明すると製
鉄所の熱間圧延設備において、ワークロール１、１間に
スラブ２を矢印ａの方向に通過させ熱間において同スラ
ブ２を圧延する。上記ワークロール１、ｌの前部には矢
印ａと直交する高圧木管によるノズルヘッダ−３、３を
上記スラブ２の」二下に配設し、同ヘッダ−３、３にそ
れぞれ均等間隔に複数個（２０〜４０個）のスプレィ開
閉弁４を接続するものである。この開閉弁４は接続管５
により上記ヘッダ−３に接続し、上下の開閉弁４には上
記スラブ２に向うノズルヘッダ６が設けられる。スプレ
ィ開閉弁４は第３図および第４図に示すように操作用シ
リンダー室７と弁開閉用シリンダー室８とが仕切板９に
より仕切られ、同伴ｖＪＭｙ。DETAILED DESCRIPTION OF THE INVENTION The purpose of this invention is to improve the descaling system employed in the process and perform descaling adapted to the form of the slab, and the descaling system used in the rolling equipment is equipped with a nozzle header. This invention relates to a descaling method characterized by selectively spouting high-pressure water from a plurality of spray nozzles installed in a steel mill. In this step, the slab 2 is passed between the work rolls 1, 1 in the direction of the arrow a, and the slab 2 is hot rolled. At the front of the work rolls 1, 1, nozzle headers 3, 3 made of high-pressure wood, orthogonal to the arrow a, are arranged below the slab 2, and a plurality of nozzle headers 3, 3 are arranged at equal intervals on the headers 3, 3, respectively. (20 to 40) spray on-off valves 4 are connected to each other. This on-off valve 4 is connected to a connecting pipe 5
A nozzle header 6 is connected to the header 3 and faces the slab 2 at the upper and lower opening/closing valves 4. As shown in FIGS. 3 and 4, the spray opening/closing valve 4 has an operation cylinder chamber 7 and a valve opening/closing cylinder chamber 8 separated by a partition plate 9.
９を貫通する往復摺動スピンドル１０か設けられる。操
作用シリンダー室７内には同スピンドル１０に操作用ピ
ストン１１か設けられ、弁開閉川シリング−室８内には
同スピンドル１０に弁開閉用ピストン１２が設けられる
。（ピストン１２には１対の対向弁座１２ａ、１２ａが
設けられ両弁座１２ａ、１２ａにそれぞれ弁座シール用
Ｕ形バッキング１２ｂ、１２ｂが設けられ、回Ｕ形バッ
キング１２ｂ、１２ｂはノーメンテナンス又は１０万回
補償取替え・・フリーメンテナンス方式である）。弁開
閉用シリンダー室８の先端には上記ノズルチップ６が設
けられ、その中心部にノズル１３を開口する。又弁開閉
用シリンダー室８の側面には高圧水進入孔１４を穿設し
回礼１４に接続管５を接続する。操作用シリンダー室７
にはその両端部に操作液（Ｗｌｏ・・水・油混合液で液
圧１８０〜２１０ｋｇ／ｃｍ’）出入口１５．１６を設
け、同出入口１５．１６にそれぞれ操作液配管１７．１
８を接続する。この操作液配管１７．１８は上記各スプ
レィ開閉弁４にそれぞれ設けられ、かつ各操作液配管１
７．１８は切替弁で接続される。A reciprocating sliding spindle 10 passing through 9 is provided. An operating piston 11 is provided on the spindle 10 in the operating cylinder chamber 7, and a valve opening/closing piston 12 is provided on the spindle 10 in the valve opening/closing chamber 8. (The piston 12 is provided with a pair of opposing valve seats 12a, 12a, and both valve seats 12a, 12a are provided with U-shaped backings 12b, 12b for valve seat sealing, respectively. 100,000 replacements (free maintenance system). The nozzle tip 6 is provided at the tip of the valve opening/closing cylinder chamber 8, and a nozzle 13 is opened in the center thereof. Further, a high pressure water inlet hole 14 is bored in the side surface of the cylinder chamber 8 for opening and closing the valve, and a connecting pipe 5 is connected to the passage 14. Operation cylinder chamber 7
Inlet/outlet 15.16 for operating liquid (Wlo, water/oil mixed liquid, liquid pressure 180-210 kg/cm') is provided at both ends of the unit, and operating liquid piping 17.1 is provided at each inlet/outlet 15.16.
Connect 8. These operating liquid pipes 17 and 18 are provided in each of the spray on-off valves 4, and each operating liquid pipe 1
7.18 is connected by a switching valve.
この切替弁は勿論上記各スプレィ開閉弁４毎に設けられ
るし、電磁弁により制御される。尚図中１９で示すもの
はノズルへツタ−３，３に接続スる配管、２０は高圧木
管、２１は高圧ポンプ、２２は高圧水開閉弁、２３は高
圧ポンプ２１と高圧水開閉弁２２どの間に設けた３力弁
、２４はサクシボン主管、２５は３方弁２３とサクショ
ン主管２４とを接続する循環水配管、２６はワークロー
ルｌの押えロール、２７は逆止弁、２８は高圧水のアキ
ュムレーター、２９は上記各スプレィ開閉弁４の閉鎖時
の上昇水位感知スイッチ、３０は同開閉弁４の開放時の
下降水位感知スイッチであって３方弁２３を切替へる。This switching valve is of course provided for each of the spray on-off valves 4, and is controlled by a solenoid valve. In the figure, 19 indicates the piping that connects the nozzle to the pipes 3, 3, 20 indicates the high-pressure wood pipe, 21 indicates the high-pressure pump, 22 indicates the high-pressure water on-off valve, and 23 indicates the high-pressure pump 21 and the high-pressure water on-off valve 22. A three-force valve is installed in between, 24 is a suction main pipe, 25 is a circulating water pipe connecting the three-way valve 23 and the suction main pipe 24, 26 is a presser roll for the work roll L, 27 is a check valve, and 28 is a high-pressure water pipe. 29 is a rising water level sensing switch when each of the spray on-off valves 4 is closed, and 30 is a falling water level sensing switch when the spray on-off valves 4 are open, which switches the three-way valve 23.
３１は高圧ポンプ２１の駆動電動機である。31 is a drive motor for the high pressure pump 21.
本発明では第１図に示すようにスラブ２をワークロール
１．１間に挿入しこれを圧延するに際し、高圧ポンプ２
１を動作して高圧水を上記ノズルヘンダー３．３からス
プレィ開閉弁４を経て第４図実線で示すようにノズル１
３から高圧水をスラブ２の表面に噴出させ同表面のデス
ケーリングを行うことが出来る。このデスケーリングに
際し上記ノズルヘッダ−３，３の両端部のスプレィ開閉
弁４を閉鎖し中央部の開閉弁４を開いてスラブ２の幅員
にノズル１３からの高圧水噴出の数を適合させ、スラブ
２の表面状態に合せて上記開閉弁４を１個置きに開いて
ノズル１３がらの高圧水噴出の数を減らし、さらにスラ
ブ２の耳部の開閉弁４を閉じ又は減らして耳部の適冷の
防止を行うものである。即ちスラブ２の態様に適応して
」二記複数のスプレィノズル１３から選択的に高圧水を
噴出させることが出来る。上記スラブ２が通過した後火
のスラブ２が到来するまでの間は上記各スプレィ開閉弁
４は閉鎖し、３方弁２３が自動的に切替へられて高圧水
は循環水配管２５がらサクション主管２４に循環する。In the present invention, as shown in FIG. 1, when inserting a slab 2 between work rolls 1.1 and rolling it, a high-pressure pump 2
1, high-pressure water is supplied from the nozzle hender 3.3 to the spray on-off valve 4 to the nozzle 1 as shown by the solid line in Figure 4.
3, high-pressure water can be ejected onto the surface of the slab 2 to descale the surface. During this descaling, the spray on-off valves 4 at both ends of the nozzle headers 3, 3 are closed, and the on-off valves 4 at the center are opened to adapt the number of high-pressure water jets from the nozzles 13 to the width of the slab 2. Depending on the surface condition of the slab 2, the on-off valves 4 are opened every other time to reduce the number of high-pressure water jets from the nozzles 13, and the on-off valves 4 on the ears of the slab 2 are closed or reduced to cool the ears appropriately. This is to prevent That is, high-pressure water can be selectively ejected from the plurality of spray nozzles 13 depending on the aspect of the slab 2. After the slab 2 has passed and until the hot slab 2 arrives, the spray on-off valves 4 are closed, the three-way valve 23 is automatically switched, and the high-pressure water is sent to the main suction pipe from the circulating water pipe 25. Cycles to 24.
従来ノズルヘッダーに設けた複数のスプレィノズルでは
スラブの態様に適応させ難く、かつスプレィ弁およびそ
の並列バイパスラインが高圧木管に１組設けられたので
高圧水管内のエヤポケットによるエヤハンマーを防止し
難く、節水、節電に適し難い欠陥があった。Conventionally, the multiple spray nozzles installed in the nozzle header are difficult to adapt to the shape of the slab, and since one set of spray valves and their parallel bypass lines are installed in the high-pressure wood pipe, it is difficult to prevent air hammer caused by air pockets in the high-pressure water pipe, which reduces water consumption. However, there were defects that made it difficult to save electricity.
本発明は上記欠陥に鑑みなされたものであって、本発明
は上述の方法および装置によってので、高圧ポンプ２１
による高圧木管２０の受ける高圧水は、複数のスプレィ
ノズル１３にそれぞれ設けたスプレィ開閉弁４が分割し
て負担しそれぞれの圧力の強さに応じて開閉容易であり
、各スプレィノズル１３の漏水を遮断し、スラブ２の態
様に適応させ易く、高圧水管内のエヤポケットによるエ
ヤハンマーの危険性が少くかつ高圧水の給水システムを
著しく単純化し得て莫大な節水、節電を行い得る効果が
ある。The present invention has been made in view of the above-mentioned deficiencies, and the present invention is based on the above-described method and apparatus.
The high-pressure water received by the high-pressure wood pipe 20 is divided and borne by the spray on-off valves 4 provided in each of the plurality of spray nozzles 13, which can be easily opened and closed depending on the strength of the pressure, thereby preventing water leakage from each spray nozzle 13. It is easy to shut off and adapt to the form of the slab 2, there is little risk of air hammer due to air pockets in the high-pressure water pipe, and the high-pressure water supply system can be significantly simplified, resulting in huge water and power savings.
第１図は本発明のデスケーリング法およびその装置を示
す側面図、第２図は第１図Ａ−Ａ線による正面図、第３
図はスプレィ開閉弁の縦断面図、第４図は第３図の動作
状態図、第５図は高圧水飴水システム図である。
３・・ノズルヘッダー、４・・スプレィ開閉弁、１３・
・スプレィノズル。
特許出願人
椛 山 隼 夫FIG. 1 is a side view showing the descaling method and apparatus of the present invention, FIG. 2 is a front view taken along line A-A in FIG. 1, and FIG.
The figure is a longitudinal sectional view of the spray on-off valve, FIG. 4 is a diagram of the operating state of FIG. 3, and FIG. 5 is a diagram of the high-pressure water syrup system. 3. Nozzle header, 4. Spray on/off valve, 13.
・Spray nozzle. Patent applicant: Hayao Kayama
Claims (1)
ズルヘッダーに設けた複数のスプレィノズルから選択的
に高圧水を噴出させることを特徴とするデスケーリング
法。 ２）圧延設備におけるデスケーリング装置において、ノ
ズルヘッダーに設けられた複数のスプレィノズルにそれ
ぞれスプレィ開閉弁を設けたことを特徴とするデスケー
リング装置。[Scope of Claims] 1) A descaling method in which high-pressure water is selectively jetted from a plurality of spray nozzles provided in a nozzle header in a descaling device in a rolling facility. 2) A descaling device for a rolling facility, characterized in that a plurality of spray nozzles provided in a nozzle header are each provided with a spray on-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18989982A JPS5976616A (en) | 1982-10-26 | 1982-10-26 | Method and device for descaling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18989982A JPS5976616A (en) | 1982-10-26 | 1982-10-26 | Method and device for descaling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5976616A true JPS5976616A (en) | 1984-05-01 |
Family
ID=16249050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18989982A Pending JPS5976616A (en) | 1982-10-26 | 1982-10-26 | Method and device for descaling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5976616A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62118128U (en) * | 1986-01-17 | 1987-07-27 | ||
| WO2014041868A1 (en) * | 2012-09-12 | 2014-03-20 | 三菱日立製鉄機械株式会社 | Nozzle header, cooling device, device for producing hot-rolled steel sheet, and method for producing hot-rolled steel sheet |
| US9387528B2 (en) | 2012-09-26 | 2016-07-12 | Primetals Technologies Japan, Ltd. | Nozzle |
| CN112122347A (en) * | 2019-06-25 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Dust suppression and removal device for hot coil box |
| US11033942B2 (en) * | 2016-08-09 | 2021-06-15 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Rolling mill exit side temperature control system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511515B1 (en) * | 1970-10-21 | 1976-01-17 | ||
| JPS5125431A (en) * | 1974-08-28 | 1976-03-02 | Nippon Steel Corp | FUNSHAHABAKAHENSUPUREIHETSUDAASOCHI |
| JPS544221B2 (en) * | 1972-03-24 | 1979-03-03 | ||
| JPS579523A (en) * | 1980-06-23 | 1982-01-19 | Kawasaki Steel Corp | Fluid injector for descaling or the like of steel material |
-
1982
- 1982-10-26 JP JP18989982A patent/JPS5976616A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511515B1 (en) * | 1970-10-21 | 1976-01-17 | ||
| JPS544221B2 (en) * | 1972-03-24 | 1979-03-03 | ||
| JPS5125431A (en) * | 1974-08-28 | 1976-03-02 | Nippon Steel Corp | FUNSHAHABAKAHENSUPUREIHETSUDAASOCHI |
| JPS579523A (en) * | 1980-06-23 | 1982-01-19 | Kawasaki Steel Corp | Fluid injector for descaling or the like of steel material |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62118128U (en) * | 1986-01-17 | 1987-07-27 | ||
| JPH0442079Y2 (en) * | 1986-01-17 | 1992-10-02 | ||
| WO2014041868A1 (en) * | 2012-09-12 | 2014-03-20 | 三菱日立製鉄機械株式会社 | Nozzle header, cooling device, device for producing hot-rolled steel sheet, and method for producing hot-rolled steel sheet |
| JP2014054652A (en) * | 2012-09-12 | 2014-03-27 | Nippon Steel & Sumitomo Metal | Nozzle header, cooling device, manufacturing method of hot rolled steel plate, and manufacturing method of hot rolled steel plate |
| KR20150051217A (en) | 2012-09-12 | 2015-05-11 | 프리메탈스 테크놀로지스 재팬 가부시키가이샤 | Nozzle header, cooling device, device for producing hot-rolled steel sheet, and method for producing hot-rolled steel sheet |
| CN104768666A (en) * | 2012-09-12 | 2015-07-08 | 普锐特冶金技术日本有限公司 | Nozzle header, cooling device, device for producing hot-rolled steel sheet, and method for producing hot-rolled steel sheet |
| US10322440B2 (en) | 2012-09-12 | 2019-06-18 | Primetals Technologies Japan, Ltd. | Nozzle header, cooling apparatus, manufacturing apparatus of hot-rolled steel sheet, and method for manufacturing hot-rolled steel sheet |
| US9387528B2 (en) | 2012-09-26 | 2016-07-12 | Primetals Technologies Japan, Ltd. | Nozzle |
| US11033942B2 (en) * | 2016-08-09 | 2021-06-15 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Rolling mill exit side temperature control system |
| CN112122347A (en) * | 2019-06-25 | 2020-12-25 | 上海梅山钢铁股份有限公司 | Dust suppression and removal device for hot coil box |
| CN112122347B (en) * | 2019-06-25 | 2022-05-10 | 上海梅山钢铁股份有限公司 | Dust suppression and removal device for hot coil box |
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