EP1427549A1 - Spritzbalken für eine hydraulische entzunderungsanlage - Google Patents
Spritzbalken für eine hydraulische entzunderungsanlageInfo
- Publication number
- EP1427549A1 EP1427549A1 EP02798705A EP02798705A EP1427549A1 EP 1427549 A1 EP1427549 A1 EP 1427549A1 EP 02798705 A EP02798705 A EP 02798705A EP 02798705 A EP02798705 A EP 02798705A EP 1427549 A1 EP1427549 A1 EP 1427549A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray
- spray bar
- check valve
- bar according
- water
- 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.)
- Granted
Links
- 239000007921 spray Substances 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/035—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material to several spraying apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
-
- 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
- B05B1/3006—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 controlling element being actuated by the pressure of the fluid to be sprayed
-
- 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
Definitions
- the invention relates to a spray bar of a hydraulic descaling system with a plurality of spray nozzles arranged on its surface.
- the scale generated in the furnace, during rolling or during casting leads to high tool and roller wear and also prevents the early detection of casting errors, which reduces the quality of the end product.
- Tinder can be removed chemically, electrochemically or mechanically. Effective mechanical descaling is possible using hydraulic descaling systems that remove primary or secondary igniters with press water jets.
- the press water jet hitting the glowing, scaled steel surface under high pressure ensures that the scale is removed.
- the process-relevant parameters are the cooling effect and the breaking effect, the occurrence of which essentially depends on the amount of water per unit of time, the water pressure in front of the nozzle and the distance from the nozzle to the descaling material.
- Known hydraulic descaling systems have a spray bar with several spray nozzles arranged on its surface.
- a spray bar is known from DE 3733131 A1, in which the individual spray nozzles can be switched via separate spray valves. With such a spray bar, the energy and water consumption can be adapted to the width of the rolling stock to be descaled.
- a spray bar with a group of spray nozzles arranged in a row is also known, in which the spray nozzles can be switched individually by actuating a common adjusting element.
- the adjusting element can optionally be axially displaced, rotated or screwed or screwed into a distributor pipe for the spray water.
- the invention is therefore based on the object of providing a spray bar with which high temperature constancy can be ensured from the beginning to the end of the rolling stock and cooling of its surface which is too rapid can be avoided.
- the solution to this problem is based on the idea of enabling the splash water to be switched on and off exactly, particularly at the beginning and end of the band. For this, the leakage of residual water from the spray nozzles must be effectively prevented.
- the object is achieved in that a check valve is assigned to a spray bar of the type mentioned at the beginning.
- the spray bar has at least one distributor pipe for supplying water to the spray nozzles and branch off supply ducts to the spray nozzles from the distributor pipe, the undesired amount of residual water can be prevented particularly effectively by arranging the check valves in the supply ducts, preferably immediately before each spray nozzle. As soon as the hydraulic control of the descaling system switches off the water, the check valves ensure that no more water gets onto the rolling stock at the moment.
- the spray nozzles can additionally be individually switched in a manner known per se in an advantageous embodiment of the invention.
- Each check valve expediently has a closing spring which acts against the flow direction, so that the check valve opens against the spring force of the closing spring.
- the spring force of the closing spring is matched to the water pressure in the spray bar. As soon as the water flow is stopped, the water pressure drops and the closing springs move the shut-off device of the check valve into the closed position.
- each non-return valve is arranged in a block which is connected to the feed channel and which is detachably connected to the spray bar.
- these advantageously consist of a corrosion-resistant material.
- Fig. 1 shows a spray bar according to the invention in a cross-sectional view
- Fig. 2 is a schematic representation of a spray bar according to the invention in a side view.
- FIG. 1 shows the cross section of a spray bar 1 according to the invention with a plurality of spray nozzles 2 arranged in a row.
- the spray bar 1 has a distributor pipe 3, from which feed ducts 4.1 to 4.8 branch off to the spray nozzles 2.1 to 2.8.
- the spray nozzles 2.1. to 2.8 are arranged in a row (see. Fig. 2).
- the water 4 is led to the spray nozzles 2.1 to 2.8 and sprayed there onto the rolling stock 5 to be descaled, which moves in the direction of the arrow 6 shown in FIG.
- a supply line 8 is connected to a connection 7 of the distributor pipe 3 and connects the distributor pipe to a supply 9, 11 for high-pressure and low-pressure water. Via an electro-hydraulic control 12, the high-pressure water with a pressure of approximately 200 bar or the low-pressure water with a pressure of up to 10 bar is optionally fed into the feed line 8.
- a check valve 13.1 to 13.8 is arranged immediately in front of each spray nozzle 2.1 to 2.8.
- Each check valve 13.1 to 13.8 has a closing spring 16 which acts on the shut-off device 14 against the flow direction 15 and which has the effect that the shut-off device 14 closes the feed channel 4.1 to 4.8 as soon as the electrohydraulic control 12 stops supplying water from the supply 9, 11 in derogation.
- check valve 13.1 to 13.8 Any residual water still present in the feed line 8 or the feed channels 4.1 to 4.8 is effectively retained by the check valve 13.1 to 13.8. Since, depending on whether the descaling system is operated with low-pressure or high-pressure water, different closing springs 16 are required, the check valves 13 are arranged in blocks 17 which can be screwed into the spray bar 1. The blocks 17 have corresponding inlets and outlets with the feed channels 4.1 to 4.8, so that the water flows through the check valves integrated in the blocks.
- control shown only for a spray bar arranged above the belt 5 can be carried out in the same way for controls arranged below the belt.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
- Spray Control Apparatus (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Coating Apparatus (AREA)
- Rotary Presses (AREA)
- Bridges Or Land Bridges (AREA)
- Fluid-Pressure Circuits (AREA)
- Cleaning By Liquid Or Steam (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10146113 | 2001-09-19 | ||
DE10146113A DE10146113A1 (de) | 2001-09-19 | 2001-09-19 | Spritzbalken für eine hydraulische Entzunderungsanlage |
PCT/EP2002/009795 WO2003024636A1 (de) | 2001-09-19 | 2002-09-03 | Spritzbalken für eine hydraulische entzunderungsanlage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1427549A1 true EP1427549A1 (de) | 2004-06-16 |
EP1427549B1 EP1427549B1 (de) | 2005-02-16 |
Family
ID=7699512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02798705A Expired - Lifetime EP1427549B1 (de) | 2001-09-19 | 2002-09-03 | Spritzbalken für eine hydraulische entzunderungsanlage |
Country Status (17)
Country | Link |
---|---|
US (1) | US6991186B2 (de) |
EP (1) | EP1427549B1 (de) |
JP (1) | JP4459618B2 (de) |
KR (1) | KR100859316B1 (de) |
CN (1) | CN1258408C (de) |
AT (1) | ATE289234T1 (de) |
AU (1) | AU2002333784B2 (de) |
BR (1) | BR0209702B1 (de) |
CA (1) | CA2457036C (de) |
CZ (1) | CZ297372B6 (de) |
DE (2) | DE10146113A1 (de) |
ES (1) | ES2235109T3 (de) |
MX (1) | MXPA04002625A (de) |
RU (1) | RU2297895C2 (de) |
UA (1) | UA79598C2 (de) |
WO (1) | WO2003024636A1 (de) |
ZA (1) | ZA200308296B (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005047936A1 (de) * | 2005-10-06 | 2007-04-12 | Sms Demag Ag | Verfahren und Vorrichtung zum Reinigen von Brammen, Dünnbrammen, Profilen oder dergleichen |
KR100797247B1 (ko) * | 2006-07-24 | 2008-01-23 | 주식회사 포스코 | 압연기의 고압수 분사구조 |
EP2028290A1 (de) * | 2007-08-21 | 2009-02-25 | ArcelorMittal France | Verfahren und Vorrichtung zur sekundären Entzunderung der metallischen bandförmigen Behandlungsgut mit Wassersprühen unter niedrigen Druck |
ITUD20110101A1 (it) * | 2011-06-30 | 2012-12-31 | Danieli Off Mecc | Dispositivo e procedimento di rimozione della scaglia da un prodotto metallico |
CN102773279A (zh) * | 2012-07-24 | 2012-11-14 | 无锡平盛科技有限公司 | 滑轮式拉丝机的冷却装置 |
DE102015204664A1 (de) * | 2015-03-16 | 2016-09-22 | Lechler Gmbh | Flachstrahldüse und Verwendung einer Flachstrahldüse |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3782634A (en) * | 1972-12-15 | 1974-01-01 | Swenson Spreader & Mfg Co | Vehicle mounted liquid distributor apparatus |
DE3417210A1 (de) * | 1984-05-10 | 1985-11-14 | Robert Bosch Gmbh, 7000 Stuttgart | Druckventil |
DE3733131A1 (de) * | 1987-10-01 | 1989-04-13 | Schloemann Siemag Ag | Drehbarer duesenbalken einer hydraulischen entzunderungsanlage |
DE4007727A1 (de) * | 1989-03-21 | 1990-09-27 | Tiefenbach Gmbh | Entzunderungsventil |
JPH0446625A (ja) * | 1990-06-12 | 1992-02-17 | Kawasaki Steel Corp | 圧延材の脱スケール方法ならびにその装置 |
US5441203A (en) * | 1993-01-25 | 1995-08-15 | Lurmark Limited | Spray nozzle holder containing two valves for flow control |
JP3307771B2 (ja) * | 1993-08-23 | 2002-07-24 | ハンス‐ユルゲン、ガイドール | 熱間圧延鋼板のデスケーリング手段 |
DE4330519B4 (de) * | 1993-09-09 | 2004-08-05 | Sms Demag Ag | Entzunderungsvorrichtung |
US5996200A (en) * | 1993-09-09 | 1999-12-07 | Sms Schloemann-Siemag Aktiengesellschaft | Descaling device and method |
JPH0852386A (ja) * | 1994-08-10 | 1996-02-27 | Kyoritsu Gokin Seisakusho:Kk | 流体噴射ノズル装置 |
KR200204900Y1 (ko) * | 1996-12-24 | 2000-12-01 | 이구택 | 소입 후 잔류수 제거장치 |
WO1998037974A1 (en) * | 1997-02-28 | 1998-09-03 | Btg International Limited | Spray nozzle arrangement |
DE19805377A1 (de) * | 1998-02-11 | 1999-08-12 | Schloemann Siemag Ag | Spritzbalken bei einer hyldraulischen Entzunderungsanlage |
KR19990038769U (ko) * | 1998-03-31 | 1999-10-25 | 이구택 | 열연스트립상의 잔류 디스케일링 워터 제거장치 |
KR19980068708U (ko) * | 1998-09-07 | 1998-12-05 | 송효순 | 체크노즐 |
KR200215236Y1 (ko) * | 2000-09-22 | 2001-03-02 | 포항종합제철주식회사 | 디스켈링 스프레이 장치 |
-
2001
- 2001-09-19 DE DE10146113A patent/DE10146113A1/de not_active Withdrawn
-
2002
- 2002-03-09 UA UA20040402817A patent/UA79598C2/uk unknown
- 2002-09-03 JP JP2003528325A patent/JP4459618B2/ja not_active Expired - Fee Related
- 2002-09-03 DE DE50202294T patent/DE50202294D1/de not_active Expired - Lifetime
- 2002-09-03 US US10/489,901 patent/US6991186B2/en not_active Expired - Lifetime
- 2002-09-03 ES ES02798705T patent/ES2235109T3/es not_active Expired - Lifetime
- 2002-09-03 CA CA2457036A patent/CA2457036C/en not_active Expired - Fee Related
- 2002-09-03 BR BRPI0209702-8A patent/BR0209702B1/pt not_active IP Right Cessation
- 2002-09-03 CZ CZ20033420A patent/CZ297372B6/cs not_active IP Right Cessation
- 2002-09-03 AT AT02798705T patent/ATE289234T1/de active
- 2002-09-03 KR KR1020037015154A patent/KR100859316B1/ko active IP Right Grant
- 2002-09-03 EP EP02798705A patent/EP1427549B1/de not_active Expired - Lifetime
- 2002-09-03 CN CNB028122550A patent/CN1258408C/zh not_active Expired - Fee Related
- 2002-09-03 WO PCT/EP2002/009795 patent/WO2003024636A1/de active IP Right Grant
- 2002-09-03 RU RU2004111671/02A patent/RU2297895C2/ru not_active IP Right Cessation
- 2002-09-03 MX MXPA04002625A patent/MXPA04002625A/es active IP Right Grant
- 2002-09-03 AU AU2002333784A patent/AU2002333784B2/en not_active Ceased
-
2003
- 2003-10-24 ZA ZA200308296A patent/ZA200308296B/xx unknown
Non-Patent Citations (1)
Title |
---|
See references of WO03024636A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR0209702B1 (pt) | 2010-06-29 |
ATE289234T1 (de) | 2005-03-15 |
EP1427549B1 (de) | 2005-02-16 |
KR100859316B1 (ko) | 2008-09-19 |
CZ297372B6 (cs) | 2006-11-15 |
WO2003024636A1 (de) | 2003-03-27 |
CA2457036C (en) | 2010-10-12 |
CZ20033420A3 (cs) | 2004-12-15 |
JP4459618B2 (ja) | 2010-04-28 |
ES2235109T3 (es) | 2005-07-01 |
MXPA04002625A (es) | 2004-07-08 |
US6991186B2 (en) | 2006-01-31 |
UA79598C2 (en) | 2007-07-10 |
ZA200308296B (en) | 2004-08-25 |
CA2457036A1 (en) | 2003-03-27 |
JP2005528216A (ja) | 2005-09-22 |
KR20040028763A (ko) | 2004-04-03 |
US20040251324A1 (en) | 2004-12-16 |
CN1531469A (zh) | 2004-09-22 |
AU2002333784B2 (en) | 2007-10-25 |
RU2004111671A (ru) | 2005-05-10 |
BR0209702A (pt) | 2004-07-27 |
RU2297895C2 (ru) | 2007-04-27 |
CN1258408C (zh) | 2006-06-07 |
DE10146113A1 (de) | 2003-04-03 |
DE50202294D1 (de) | 2005-03-24 |
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