EP2623223A1 - Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes - Google Patents

Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes Download PDF

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Publication number
EP2623223A1
EP2623223A1 EP12153475.4A EP12153475A EP2623223A1 EP 2623223 A1 EP2623223 A1 EP 2623223A1 EP 12153475 A EP12153475 A EP 12153475A EP 2623223 A1 EP2623223 A1 EP 2623223A1
Authority
EP
European Patent Office
Prior art keywords
cleaning device
cleaning
water
lubricant
roll
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.)
Withdrawn
Application number
EP12153475.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Johannes Dagner
Martin Rössiger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP12153475.4A priority Critical patent/EP2623223A1/de
Priority to EP12808763.2A priority patent/EP2794137B1/de
Priority to BR112014019035A priority patent/BR112014019035A8/pt
Priority to PCT/EP2012/075215 priority patent/WO2013113441A1/de
Priority to US14/376,281 priority patent/US20150020845A1/en
Priority to CN201280068760.5A priority patent/CN104080552B/zh
Publication of EP2623223A1 publication Critical patent/EP2623223A1/de
Withdrawn legal-status Critical Current

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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
    • B21B45/02—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
    • B21B45/0269—Cleaning
    • B21B45/0275—Cleaning devices
    • B21B45/0278—Cleaning devices removing liquids
    • B21B45/0284—Cleaning devices removing liquids removing lubricants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B28/00—Maintaining rolls or rolling equipment in effective condition
    • B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
    • B21B28/04—Maintaining rolls in effective condition, e.g. reconditioning while in use, e.g. polishing or grinding while the rolls are in their stands

Definitions

  • the invention relates to a cleaning device and a method for removing a lubricant from the rolls of a roll stand.
  • Roll stands especially in hot strip mills, typically include nip lubrication equipment, usually mounted to the upstream side of the mill in the area of the work roll.
  • a lubricant is applied to the work roll, as a lubricant usually a water-oil emulsion is sprayed.
  • the lubricant significantly reduces the coefficient of friction between the respective roller and the rolling stock. This reduces the rolling forces and the surface quality of the rolling stock is improved. As a result, few rolling steps are required and / or the profile and the flatness of the rolling stock can be better influenced by a greater degree of freedom in the rolling force. In addition, energy consumption is reduced and the production spectrum increased.
  • the rollers Before tapping the rolling stock, which is a rolled strip, for example, the rollers, in particular the work rolls, but must be free of lubricant to increase the coefficient of friction of the roller again, otherwise there is a risk that the rolling stock is not drawn into the mill, which leads to an interruption of the rolling process. For this reason, the roll gap lubrication is switched off just before unloading the rolling stock, thereby burns the lubricant due to the high belt temperature completely in the remaining Walzenumassin. Only after renewed threading of the next rolling stock, the roll gap lubrication is switched on again. The head and foot of the rolling stock are therefore rolled ungeschmiert. This, however, adversely affects the Rolling, since the foot of the rolling stock, which is usually the coldest, requires the highest rolling force.
  • the invention is based on the object in the operation of a rolling stand in a cost effective and efficient way to remove the lubricant from the rollers of the mill stand gentle to the roller.
  • the object is achieved by a cleaning device for removing a lubricant from the rolls of a roll stand, wherein the cleaning device comprises at least one ultrasonic generator for generating ultrasonic waves, wherein the ultrasonic waves with the aid of a cleaning liquid to the surface of the rollers are conductive.
  • the object is also achieved according to the invention by a method for removing a lubricant from the rolls of a roll stand, wherein a cleaning liquid is conveyed to the surface of the rolls and ultrasonic waves are conducted to the surface of the rolls by means of the cleaning liquid.
  • the invention is based on the finding that the pressure of the cleaning liquid can be reduced, but still there is an intensive surface cleaning with a high efficiency by the cleaning is supplemented by ultrasonic waves, which propagate with the cleaning liquid to the surface of the roller and increase the cleaning effect .
  • Ultrasound is known to work even in small wells of the surface and mechanically bring adhering particles or substances into solution. Thanks to the ultrasonic waves, the risk of damage to the surface of the roller is minimized.
  • notches on the surface of the roller, such as fire cracks can be cleaned efficiently.
  • the cleaning liquid is applied in particular to the roll surface at a pressure of 5 to 15 bar, the pressure being about ten times lower than the required pressure according to FIG JP 2002-178011-A ,
  • the at least one ultrasonic generator is integrated in particular in the cleaning device, and surrounded by the cleaning liquid, so that the ultrasonic waves are delivered directly to the cleaning liquid and forwarded with this.
  • the result is a fluid bridge between the ultrasonic generator and the roller surface, which transmits the sound waves.
  • This type of cleaning can be applied to both the work rolls and the back-up rolls of a rolling stand.
  • the main advantage of such a cleaning is that the lubrication can be used for the whole band foot and for the essential part of the band head. This reduces the rolling force, resulting in a significant energy saving effect.
  • the product range is broadened: with an identical design of the system (drives, hydraulics and stands), harder steel products can be rolled.
  • water is used as the cleaning agent. Since water is chemically neutral, the use of water is gentle on the rollers. In addition, water is anyway a wide application in the rolling process, so that in a rolling mill large amounts of water are available.
  • water is diverted from a cooling water circuit for the rolling stand by the water is supplied via a supply line of the cleaning device and this supply line is a branch of the cooling water circuit for the roller.
  • this supply line is a branch of the cooling water circuit for the roller.
  • the ultrasonic generator for generating ultrasonic waves having a frequency between 20 kHz and 2 MHz, in particular between 35 kHz and 200 kHz, set.
  • This frequency range has proved to be particularly advantageous for the ultrasonic cleaning of fine dirt.
  • at least two ultrasonic generators of different frequency are provided, e.g. an ultrasonic generator with 40 kHz and an ultrasonic generator with 80 kHz frequency.
  • a sealing element which faces a roll gap between the rolls, so that the sealing element seals the roll against an outflowing liquid in the direction of rotation of the roll.
  • an opening facing away from the roll gap is provided on the cleaning device, by which the cleaning liquid is conveyed to the surface of the roller.
  • the cleaning device is arranged at least upstream of the respective roller.
  • cleaning devices can also be provided on the outlet side. Since the cleaning device is characterized by a manageable number of additional components, it requires a small installation space and can be easily installed in a protected installation position in existing components of the mill stand.
  • the cleaning device is integrated in particular in a chock of the work rolls or in a chilled beam for the rolling stand.
  • at least one inlet side arranged cleaning device is provided in reversibly operated rolling stands are two cleaning devices per roll useful - an inlet and an outlet side.
  • the cleaning liquid contains an emulsifier.
  • the cleaning performance is increased because lubricant particles that are thrown up in the cleaning process, not so easy to settle on the roll surface again.
  • the same emulsifier is used, which is admixed with the lubricant. In this way, it is ensured that no additional resources must be made available, but the cleaning of the roll surface is carried out only with the help of resources that are required and permitted anyway for the operation of the rolling mill.
  • the temperature of the cleaning liquid is between 0 ° C and 70 ° C.
  • the temperature of the cleaning liquid corresponds to an ambient temperature, so that no additional heating effort for the cleaning liquid is required, or such a heating effort is limited.
  • the cleaning device is preferably active only between a tapping of a preceding rolling stock by means of the roll stand and a tapping of a subsequent rolling stock.
  • a tapping of a preceding rolling stock by means of the roll stand and a tapping of a subsequent rolling stock.
  • the cleaning process is interrupted and normal operation of the rolling mill resumed.
  • a rolling stand 2 which comprises two work rolls 4 and two support rollers 6. Between the work rolls, a roll gap 8 is formed, through which rolled goods, run in the embodiment shown rolling belts.
  • Fig. 1 is a preceding, already rolled rolled strip 10 with a reduced thickness, shown, the foot part is still in the nip 8, and a subsequent, prepared for rolling rolled strip 12th
  • a lubricant is supplied to the work rolls 4 through lubricant nozzles 14.
  • the nip 8 must be free of lubricant, so that the rolled strip 12 can be easily drawn into the rolling stand 2.
  • a cleaning device 16 per drive roller 4 per a cleaning device 16 is provided with the aid of a cleaning liquid, in the illustrated embodiment, water is applied to the surfaces of the work rolls 4.
  • an ultrasonic generator 18 is integrated, with the aid of which ultrasonic waves are generated, which are conducted by means of the water from the cleaning device 16 to the surface of the work rolls 4.
  • the respective cleaning device 16 is 16 installed in the cooling circuit of the work rolls 4 and attached to an inlet side fender 20 in the illustrated embodiment.
  • the function of the mudguard 20 is to prevent cooling water from reaching the rolled strip 10, 12.
  • the coolant circuit has per work roll on the inlet and outlet side a coolant supply 22, which opens into a chilled beam 24 which extends substantially over the length of the work rolls perpendicular to the plane of the drawing.
  • a coolant supply 22 which opens into a chilled beam 24 which extends substantially over the length of the work rolls perpendicular to the plane of the drawing.
  • a Supply line 26 is branched, through which water is introduced into the cleaning device 16.
  • the structure of the cleaning device 16 is the FIGS. 2 and 3 refer to.
  • the cleaning device 16 has a cavity 28 which is filled with water during operation.
  • the ultrasonic generator 18 is arranged, so that the ultrasonic generator 18 is in particular continuously washed by the water during operation, which is conveyed in the direction of the roll surface.
  • a sealing element 32 which is formed in the manner of a sealing lip arranged. In particular, by its contact with the roll surface, the sealing element prevents water from the cleaning device 16 during the rotational movement of the work roll 4 down to the rolled strip 10, 12, flows.
  • an opening 36 is formed through which the water is passed from the cleaning device 16 in the opposite direction to the direction of rotation of the work roll 4 to the roll surface.
  • the lower roller 4 shows the opening 36 down, so that additionally acts gravity and enhances the flow of cleaning fluid.
  • openings which are not shown here in detail can also be provided in the region of the front sides of the work rolls 4. In this case, the lateral drainage of the cleaning liquid is collected, for example via lines or baffles and can be recycled.
  • baffles 38 are provided in the cleaning device 16, which cause a uniform flow through the cavity 38, so that the formation of dead zones in the cavity 28 is suppressed.
  • the water transmits the sound waves from the ultrasonic generator 18 to the roll surface and thereby forms a kind of liquid bridge between the ultrasonic generator 18 and the work roll 4.
  • the lubricant is atomized at the roll surface and removed via the water.
  • the water, which is used as a cleaning liquid, is conveyed to the work roll 4 at a pressure of about 10 bar and in particular has a temperature which corresponds to the temperature resulting from the process control and / or the plant condition. Thus, in particular, no further heating measures for the removal of the lubricant from the roll surface are required.
  • the fluidic connection between the cleaning device 16, the cooling water circuit and a lubricant circuit of the roll stand 2 is in Fig. 4 shown.
  • the reference numeral 40 is in Fig. 4 denotes a lubricant tank and the reference numeral 42 an emulsifier tank.
  • the lubricant, the emulsifier, and water from a scaffold cooling water supply conduit 48 are brought together in a mixer 44 and supplied via a lubricant conduit 46 to the lubricant nozzle 14, which in the embodiment shown is located below the mudguard 20 in the vicinity of the nip 8.
  • Cooling water is introduced from the water supply line 48 into the cooling water line 22, which is sprayed onto the surface of the work roll 4 via the cooling bars 24. A portion of the cooling water is diverted via the supply line 26 before it has reached the chilled beam 24.
  • the cooling water flow is in a ratio to the cleaning flow between 10: 1 to 2: 1.
  • the part of the water in the feed line 26 is mixed in a second mixer 50 with the emulsifier from the emulsifier tank 42 and then introduced into the cleaning device 16.
  • an emulsifier line 52 leads directly from the emulsifier tank 42 to the second mixer 50, which likewise is arranged on the protective plate 20 like the cleaning device 16.
  • the emulsifier increases the efficiency of the cleaning fluid.
  • the supply line 26 opens into the second mixer 50th
  • the cooling water and the cleaning water, which runs off the side of the work rolls 4, is finally collected in a cooling water sump 54 and discharged from the rolling mill 2 for processing.
  • Characteristic of the cooling water circuit according to Fig. 4 is that with the aid of the valves 56a and 56b, the water supply in the lines 22 and 26 depending on the rolling process can be controlled dynamically and in a short time.
  • the water supply to the cleaning device 16 is interrupted, so that the entire amount of water in the cooling water line 22 is used for cooling purposes.
  • the cleaning device 16 is only briefly switched on between a tapping of the preceding rolled strip 10 and a tapping of the following rolled strip 12.
  • a portion of the water in the cooling water line 22 is diverted into the supply line 26 and finally enters the cleaning device 16.
  • the cleaning device 16 flows at least from the inlet side chilled beam 24 less water to the roll surface.
  • this has the positive side effect that the lubricant is easier to solve by heating the roll surface.
  • the rolling mill 2 is characterized not only by an efficient operation thanks to the increase in the coefficient of friction when starting the rolling bands 10, 12, but also by a minimized energy requirement and by a potentially constant water requirement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Metal Rolling (AREA)
EP12153475.4A 2012-02-01 2012-02-01 Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes Withdrawn EP2623223A1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP12153475.4A EP2623223A1 (de) 2012-02-01 2012-02-01 Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes
EP12808763.2A EP2794137B1 (de) 2012-02-01 2012-12-12 Reinigungsvorrichtung und verfahren zum entfernen eines schmiermittels von den walzen eines walzgerüstes
BR112014019035A BR112014019035A8 (pt) 2012-02-01 2012-12-12 Dispositivo de limpeza e método para remover lubrificante dos rolos de um cavalete de rolos
PCT/EP2012/075215 WO2013113441A1 (de) 2012-02-01 2012-12-12 Reinigungsvorrichtung und verfahren zum entfernen eines schmiermittels von den walzen eines walzgerüstes
US14/376,281 US20150020845A1 (en) 2012-02-01 2012-12-12 Cleaning device and method for removing a lubricant from the rolls of a roll stand
CN201280068760.5A CN104080552B (zh) 2012-02-01 2012-12-12 用于清除辊架的轧辊上的润滑剂的清洁装置和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12153475.4A EP2623223A1 (de) 2012-02-01 2012-02-01 Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes

Publications (1)

Publication Number Publication Date
EP2623223A1 true EP2623223A1 (de) 2013-08-07

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP12153475.4A Withdrawn EP2623223A1 (de) 2012-02-01 2012-02-01 Reinigungsvorrichtung und Verfahren zum Entfernen eines Schmiermittels von den Walzen eines Walzgerüstes
EP12808763.2A Not-in-force EP2794137B1 (de) 2012-02-01 2012-12-12 Reinigungsvorrichtung und verfahren zum entfernen eines schmiermittels von den walzen eines walzgerüstes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12808763.2A Not-in-force EP2794137B1 (de) 2012-02-01 2012-12-12 Reinigungsvorrichtung und verfahren zum entfernen eines schmiermittels von den walzen eines walzgerüstes

Country Status (5)

Country Link
US (1) US20150020845A1 (he)
EP (2) EP2623223A1 (he)
CN (1) CN104080552B (he)
BR (1) BR112014019035A8 (he)
WO (1) WO2013113441A1 (he)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3357660A1 (en) * 2017-02-06 2018-08-08 R. Faerch Plast A/S A method and a system for keeping a calender roll clean

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US10383129B2 (en) * 2013-10-31 2019-08-13 Sony Corporation Communication system, communications device, infrastructure equipment and method of allocating resources for performing device-to-device(D2D) communication
US10374819B2 (en) * 2014-09-19 2019-08-06 Xiaomi Inc. Methods and devices of accessing wireless network
TWI620905B (zh) * 2017-06-14 2018-04-11 住華科技股份有限公司 除液裝置
RU2761304C1 (ru) 2018-06-13 2021-12-07 Новелис Инк. Системы и способы удаления вязких материалов при обработке металлических изделий
RU2730826C1 (ru) 2018-06-13 2020-08-26 Новелис Инк. Устройства и способы удерживания вязких материалов в прокатном производстве
DE102018209854A1 (de) * 2018-06-19 2019-12-19 Sms Group Gmbh Emulsionsumlaufanlage
CN110026438B (zh) * 2019-05-20 2024-06-28 安徽协同创新设计研究院有限公司 一种铜带轧机轧辊清洗装置
EP4286068A1 (de) * 2022-06-02 2023-12-06 Primetals Technologies Austria GmbH Verfahren sowie vorrcihtung zum betreiben einer arbeitswalze beim warmwalzen
US20240149318A1 (en) * 2022-11-09 2024-05-09 Primetals Technologies USA LLC Quick-Change Roll Cooling Header Cartridge with Real-Time Feedback of Operational Data

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178011A (ja) * 2000-12-06 2002-06-25 Sumitomo Metal Ind Ltd 鋼板の熱間潤滑圧延方法およびその装置
DE10145902A1 (de) * 2001-09-18 2003-04-10 Andreas H Stranz Verfahren und Vorrichtung zum Reinigen der Oberfläche eines in Einbau- und Betriebsstellung befindlichen Maschinen- oder Anlagenteils
DE10148401A1 (de) * 2001-09-29 2003-04-17 Karl Beis Einrichtung zum Reinigen von Oberflächen mittels Ultraschall
WO2006089730A1 (de) * 2005-02-26 2006-08-31 Sms Demag Ag Verfahren und vorrichtung zum reinigen eines metallbandes
EP2143824A1 (en) * 2007-05-01 2010-01-13 Nippon Steel Corporation Steel sheet rinsing method, and steel sheet continuous rinsing apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6125915A (en) * 1994-03-30 2000-10-03 Golden Aluminum Company Method of and apparatus for cleaning a continuous caster
CN1938109A (zh) * 2004-04-05 2007-03-28 Bfivdeh-应用研究院有限公司 从带材的表面去除液体的方法和装置
CN201217016Y (zh) * 2008-06-23 2009-04-08 宝山钢铁股份有限公司 带钢表面清洗加工的超声波处理装置
CN101556267B (zh) * 2009-05-22 2013-07-10 东北大学 一种模拟铁素体不锈钢热轧粘辊的实验方法及其装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002178011A (ja) * 2000-12-06 2002-06-25 Sumitomo Metal Ind Ltd 鋼板の熱間潤滑圧延方法およびその装置
DE10145902A1 (de) * 2001-09-18 2003-04-10 Andreas H Stranz Verfahren und Vorrichtung zum Reinigen der Oberfläche eines in Einbau- und Betriebsstellung befindlichen Maschinen- oder Anlagenteils
DE10148401A1 (de) * 2001-09-29 2003-04-17 Karl Beis Einrichtung zum Reinigen von Oberflächen mittels Ultraschall
WO2006089730A1 (de) * 2005-02-26 2006-08-31 Sms Demag Ag Verfahren und vorrichtung zum reinigen eines metallbandes
EP2143824A1 (en) * 2007-05-01 2010-01-13 Nippon Steel Corporation Steel sheet rinsing method, and steel sheet continuous rinsing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3357660A1 (en) * 2017-02-06 2018-08-08 R. Faerch Plast A/S A method and a system for keeping a calender roll clean

Also Published As

Publication number Publication date
EP2794137A1 (de) 2014-10-29
EP2794137B1 (de) 2016-03-09
CN104080552B (zh) 2016-04-13
CN104080552A (zh) 2014-10-01
BR112014019035A2 (he) 2017-06-20
WO2013113441A1 (de) 2013-08-08
BR112014019035A8 (pt) 2017-07-11
US20150020845A1 (en) 2015-01-22

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