EP2760608A1 - System und verfahren zur überwachung eines formflussverbrauchs - Google Patents

System und verfahren zur überwachung eines formflussverbrauchs

Info

Publication number
EP2760608A1
EP2760608A1 EP12834726.7A EP12834726A EP2760608A1 EP 2760608 A1 EP2760608 A1 EP 2760608A1 EP 12834726 A EP12834726 A EP 12834726A EP 2760608 A1 EP2760608 A1 EP 2760608A1
Authority
EP
European Patent Office
Prior art keywords
mold flux
intermediate hopper
mold
transfer
hopper
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
Application number
EP12834726.7A
Other languages
English (en)
French (fr)
Other versions
EP2760608A4 (de
EP2760608B1 (de
Inventor
Todd ORSI
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.)
Stollberg Inc
Original Assignee
Stollberg Inc
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 Stollberg Inc filed Critical Stollberg Inc
Publication of EP2760608A1 publication Critical patent/EP2760608A1/de
Publication of EP2760608A4 publication Critical patent/EP2760608A4/de
Application granted granted Critical
Publication of EP2760608B1 publication Critical patent/EP2760608B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/108—Feeding additives, powders, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/007—Continuous casting of metals, i.e. casting in indefinite lengths of composite ingots, i.e. two or more molten metals of different compositions being used to integrally cast the ingots
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/165—Controlling or regulating processes or operations for the supply of casting powder

Definitions

  • a mold flux which may be a powder or granular material, onto the top of a shapes mold during the continuous casting of a molten metal, typically steel, as shown in US Patent No. 6,474,398, the disclosure of which is incorporated by reference.
  • the mold flux turns into slag when sufficiently heated by the molten steel.
  • the mold flux being fed is in the form of a granulated powder from a bulk source such as a bag.
  • the mold flux is fed by way of a vacuum from the bulk source to an intermediate feeder hopper.
  • a constant level is maintained within the intermediate hopper with a proximity sensor which measures the level of mold flux within the hopper.
  • the operator adjusts the set point level on a feed controller to deliver a steady feed of mold flux from a feed box.
  • FIG. 1 illustrates a front view of various embodiments of a system for measuring mold flux consumption in a continuous casting operation.
  • FIG. 2 illustrates a back perspective view of the system of Fig. 1.
  • FIG. 1 illustrates various embodiments of a system 10 for measuring mold flux consumption in a continuous casting operation; common parts will be represented by the same reference numeral.
  • the continuous casting operation is for the continuous casting of any shape, from molten metal 15, which in the illustrated embodiment is molten steel.
  • Mold flux 1 1 in granular or powder form is fed onto the top of the shapes mold 13.
  • the shapes mold can be, by way of example, a slab mold.
  • the mold flux 11 becomes a slag when sufficiently heated by the molten steel.
  • the system of various embodiments is indicated generally by reference number 10.
  • the system generally includes four major components: a transfer apparatus 12; an intermediate hopper 14, a feed control apparatus 16, and a delivery apparatus 18.
  • the transfer apparatus 12 transfers powder mold flux from a bulk source 20 to the intermediate hopper 14.
  • the bulk source of powder mold flux 20 may be, for example, a large bag or barrel.
  • the delivery apparatus 18 feeds powder mold flux 1 1 from the intermediate hopper to the top of the mold.
  • the transfer apparatus includes a vacuum 22 having an inlet port 24 to which one end 26 of a flexible suction tube 28 is connected. The other end 30 of flexible suction tube 28 extends into the bulk source 20.
  • Vacuum 22 has an outlet at the bottom for transferring mold flux to the intermediate hopper 14.
  • the intermediate hopper 14 has a fitting on the bottom that extends into the top of the feed hopper 31.
  • the delivery apparatus 18 includes a feed hopper 31 and feeds mold flux from a pair (could be up to six outlets) of outlet ports 32, 34 of the feed hopper 31 to the top of a mold. There is no contact between the intermediate hopper 14 and feed hopper 31 as this would give a false weight.
  • the delivery apparatus 18 includes a pair (could be up to six delivery tubes) of delivery tubes 36, 40 each having one end connectable to an outlet port 32, 34, and the other end having anywhere from one to six feed heads 46 (two shown in the illustrated embodiment) disposed above a mold or series of molds.
  • the mold flux is pneumatically fed from the feed hopper 31 with 1 inch venturi pumps 41 which are operatively connected to the outlet ports 32, 34.
  • the number of ports or 1 inch venturi pumps could vary depending on the type of continuous casting machine or shapes cast. For example: If the continuous caster is a small 6-strand billet machine, there would be a total of six molds, each mold being the size of the cast product. This would require six 1 inch venturi pumps and feed lines.
  • the control apparatus 16 includes at least one load cell 42 supporting the intermediate hopper 14 for weighing the intermediate hopper 14 and its contents of mold flux over a period of time for measuring the real time consumption of mold flux.
  • the at least one load cell 42 preferably includes a plurality of load cells 42, each supporting a side of the intermediate hopper 14. There are three load cells 42 in this embodiment. Only two load cells 42, however, can be seen in Fig. 1.
  • the control apparatus further includes a programmable logic controller (PLC) 44 (Fig. 2) receiving input from the load cells for controlling the operation of the vacuum 22.
  • PLC programmable logic controller
  • the PLC 44 causes the vacuum 22 to turn on, thus causing mold flux to feed into the intermediate hopper 14, based on a predetermined weight of the feed bin as compared to the consumption or loss of weight of mold flux calculated using the output of the at least one load cell 42.
  • the use of PLC 44 allows the ability to record daily mold flux consumption files.
  • any suitable processor having the appropriate software such as FACTORY TALK software may be used.
  • it may be desirable to measure mold flux consumption volumetrically. The rate of which the mold flux is delivered onto the mold can be adjusted by the operator using an operator control screen 48 on the PLC 44 that can be used for adjusting the feed rate.
  • the operator control screen 48 is a touch screen display that gives the operator a scale of 0 - 100. This scale represents the mA voltage sent from the PLC 44 to the current to pressure transducers that are located in the feed hopper.
  • the rate of which the mold flux is delivered onto the mold can be adjusted by the operator by a handheld wireless controller 50 in communication with a receiver 52 on PLC 44.
  • the wireless controller 50 can be used to control the feed rate instead of the operator control screen 48 on the PLC display.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
EP12834726.7A 2011-09-29 2012-10-01 System und verfahren zur überwachung eines formflussverbrauchs Active EP2760608B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161540616P 2011-09-29 2011-09-29
PCT/US2012/058285 WO2013049807A1 (en) 2011-09-29 2012-10-01 System and method for monitoring mold flux consumption

Publications (3)

Publication Number Publication Date
EP2760608A1 true EP2760608A1 (de) 2014-08-06
EP2760608A4 EP2760608A4 (de) 2015-07-15
EP2760608B1 EP2760608B1 (de) 2019-04-03

Family

ID=47991518

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12834726.7A Active EP2760608B1 (de) 2011-09-29 2012-10-01 System und verfahren zur überwachung eines formflussverbrauchs

Country Status (5)

Country Link
US (2) US20130081777A1 (de)
EP (1) EP2760608B1 (de)
ES (1) ES2733680T3 (de)
TR (1) TR201909665T4 (de)
WO (1) WO2013049807A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103341604B (zh) * 2013-06-26 2015-07-15 湖南镭目科技有限公司 一种连铸结晶器自动加渣控制的方法、系统及装置
GB201517130D0 (en) * 2015-09-28 2015-11-11 Imerys S A A flux feeding apparatus and method
CN105328149B (zh) * 2015-10-29 2017-10-03 芜湖新兴铸管有限责任公司 保护渣自动加料装置
KR101913318B1 (ko) 2016-04-05 2018-10-30 자동차부품연구원 브레이크 디스크 및 브레이크 디스크 제조 방법
US10620062B2 (en) 2017-10-23 2020-04-14 Deborah D. L. Chung Cement-based material systems and method for self-sensing and weighing
EP3907019A1 (de) 2020-05-05 2021-11-10 Primetals Technologies Austria GmbH Fördern von giesspulver in eine kokille
WO2022013216A1 (en) * 2020-07-15 2022-01-20 Imertech Sas Flux delivery for continuous casting
CN114130971B (zh) * 2021-12-10 2023-08-04 湖南科技大学 基于连铸机加渣机理的渣厚自适应控制方法及装置

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
FI834095A (fi) * 1983-07-29 1985-01-30 Vibra Screw Inc Med skruvmatning foersedd vibrerad viktminskningsanordning.
FR2666035A1 (fr) * 1990-08-27 1992-02-28 Lorraine Laminage Procede et dispositif d'alimentation d'un materiau poudreux ou granule dans une lingotiere de coulee continue.
US5598647A (en) * 1994-03-16 1997-02-04 Brooklyn Union Gas Material transfer apparatus and method
US5450984A (en) * 1994-04-29 1995-09-19 K-Tron Technologies, Inc. Material feeding apparatus
JP2856077B2 (ja) * 1994-08-25 1999-02-10 住友金属工業株式会社 連続鋳造用パウダー層厚の制御方法および装置
JPH115147A (ja) * 1997-06-12 1999-01-12 Nkk Corp 連続鋳造のパウダ供給方法及びその装置
US6474398B1 (en) * 1998-09-16 2002-11-05 Stollberg, Inc. Apparatus for introducing granular mold flux onto the top of a slab being cast within a continuous casting mold
US20020139507A1 (en) * 2001-03-29 2002-10-03 Stollberg Inc. Method and apparatus for controlling the flow of granular mold flux onto the top of a strand of steel being cast within a continuous casting mold
CA2616043A1 (en) * 2005-07-21 2007-02-15 Vac-U-Max Apparatus for dispensing granular material and method thereof
CN100457325C (zh) * 2007-06-16 2009-02-04 姜虹 大断面结晶器自动加渣装置
US20100017312A1 (en) * 2008-07-17 2010-01-21 Martin Evans Material delivery system to one or more units and methods of such delivery
US20100017321A1 (en) 2008-07-18 2010-01-21 Chicago Mercantile Exchange, Inc. Adaptive Implied Spread Matching
KR100951100B1 (ko) * 2008-11-28 2010-04-07 스톨베르그 앤드 삼일 주식회사 액상형 고정탄소를 이용한 과립형 몰드 플럭스의 제조방법 및 액상형 고정탄소의 제조 공급 설비

Also Published As

Publication number Publication date
TR201909665T4 (tr) 2019-07-22
ES2733680T3 (es) 2019-12-02
US20130081777A1 (en) 2013-04-04
WO2013049807A1 (en) 2013-04-04
US20160243610A1 (en) 2016-08-25
EP2760608A4 (de) 2015-07-15
EP2760608B1 (de) 2019-04-03

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