EP1222982A2 - Auskleidung für Giesspfannen , Zwischengefässe und dergleiche Behältern zum Gebrauch in der Eisen- und Stahlindustrie - Google Patents

Auskleidung für Giesspfannen , Zwischengefässe und dergleiche Behältern zum Gebrauch in der Eisen- und Stahlindustrie Download PDF

Info

Publication number
EP1222982A2
EP1222982A2 EP02000486A EP02000486A EP1222982A2 EP 1222982 A2 EP1222982 A2 EP 1222982A2 EP 02000486 A EP02000486 A EP 02000486A EP 02000486 A EP02000486 A EP 02000486A EP 1222982 A2 EP1222982 A2 EP 1222982A2
Authority
EP
European Patent Office
Prior art keywords
layer
lining
ladles
tundishes
alumina
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
EP02000486A
Other languages
English (en)
French (fr)
Other versions
EP1222982B1 (de
EP1222982A3 (de
Inventor
Luigi Ture
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1222982A2 publication Critical patent/EP1222982A2/de
Publication of EP1222982A3 publication Critical patent/EP1222982A3/de
Application granted granted Critical
Publication of EP1222982B1 publication Critical patent/EP1222982B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02—Linings

Definitions

  • the present invention relates to one-piece lining for ladles, tundishes and similar receptacles used in iron and steel industry. It comprises one or more layers of refractory bricks, which are joined together on every contact surfaces with a low-expansion, heat resistant stucco, said stucco being treated with a carbon-based additive as the one described in the Italian patent No. 01243637.
  • molten metal from the blast furnace is taken to steeel meting shop where further redution of impurities is done in converters.
  • the liquid steel is taken into ladles and afterwards in other containers or tundishes.
  • Ladles are metal receptacles lined with refractory bricks and a refractory wall, which is in contact with the molten metal and must be periodically replaced (rebricking).
  • Tundishes are containers made of steel and lined with some brick layers coated with 3-4 cm, highly refractory materials.
  • said receptacles and, in particular, ladles and buckets are subjected to oxidation of the metal sheets with the consequent reduction of the wall thickness; lastly, also the carbon-based bricks subjected to slags attack, are oxidized. With time and at a temperature ranging between 800°C and 100°C, oxygen decarburizes the bricks, lowering their mechanical resistance, and causing wear and carbon release in the produced steel.
  • the invention solves the above mentioned problems being characterised as a one-piece lining comprising some layers of refractory bricks joined together with alumina- or zircon-based stuccos.
  • These stuccos, treated with a carbon additive already described and claimed in the Italian patent No. 01243637, are thermal resistant and have a low coefficient of thermal expansion.
  • Fig. 1 describes a practical, preferred but not restrictive example, how said coating can be applied to a ladle surface.
  • the lining consists of a not penetrable wall pattern made of horizontal and vertical joints with suitable binding materials that makes a real barrier to the liquid steel.
  • (1) is the ladle metal shell, on which a first 2-mm layer of protective, binding and insulating stucco (2) is applied.
  • this material can be composed of aluminum silicate, sand and ceramic fibers.
  • a first protective layer (3) made of slabs or bricks (flat or with a proper curvature) is laid on said stucco (2) and joined together with the alumina- and/or zirconium-based, low expansion stucco (5). Before the next protective layer is laid, a further layer of the material (5) is applied on the bricks surface.
  • Said stucco layer must be applied gradually, on small portions of the wall (some square meters), to avoid its complete hardening before the bricks are laied down. Then, the bricks (4) are laied down, joined with the same material (5).
  • the most important part of the coating is a layer (6) made of the very same material of the layer (5).
  • Said layer which acts as a strong barrier to molten steel or cast iron infiltrations, can have a thicknes of approximatevely 2 mm and must be applied on the whole surface; then it must dry completely (about 4-8 hours, according to the external temperature) before laying the final layer of the wall (7).
  • the advantages of such coating system are: the reduction of infiltrations due to the stucco interlayers that cool down the molten steel which solidifies into thin sheets easly removable; reduction of maintenance time and longer lifetime of the refractory materials; reduction of ladles cracking and leakage; lower temperature of the shell external surface and, consequently, lower steel heat losses.
  • the use of such insulating and heat resistant coating for such receptacles avoids the oxidation of the sheet metal walls, their thickness reduction and allows a lower carbon release in the produced steel, in particolar if carbon bricks are used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Ladders (AREA)
  • Coating With Molten Metal (AREA)
  • Compositions Of Oxide Ceramics (AREA)
EP02000486A 2001-01-16 2002-01-08 Auskleidung für Giesspfannen , Zwischengefässe und dergleiche Behältern zum Gebrauch in der Eisen- und Stahlindustrie Expired - Lifetime EP1222982B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001BA000004A ITBA20010004A1 (it) 2001-01-16 2001-01-16 Rivestimento monoblocco per siviere,paniere e contenitori similari utilizzati nell'industria siderurgica.
ITBA010004 2001-01-16

Publications (3)

Publication Number Publication Date
EP1222982A2 true EP1222982A2 (de) 2002-07-17
EP1222982A3 EP1222982A3 (de) 2003-07-16
EP1222982B1 EP1222982B1 (de) 2005-04-20

Family

ID=11437719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02000486A Expired - Lifetime EP1222982B1 (de) 2001-01-16 2002-01-08 Auskleidung für Giesspfannen , Zwischengefässe und dergleiche Behältern zum Gebrauch in der Eisen- und Stahlindustrie

Country Status (5)

Country Link
EP (1) EP1222982B1 (de)
AT (1) ATE293504T1 (de)
DE (1) DE60203744T2 (de)
ES (1) ES2240577T3 (de)
IT (1) ITBA20010004A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407260A (en) * 2003-10-22 2005-04-27 Samsung Gwanju Electronics Co Bendable suction brush for a vacuum cleaner
CN103464735A (zh) * 2013-09-29 2013-12-25 武汉钢铁(集团)公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
WO2015043452A1 (zh) * 2013-09-29 2015-04-02 武汉钢铁(集团)公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
CN112264612A (zh) * 2020-09-30 2021-01-26 江苏沙钢集团有限公司 一种钢包砌筑结构及钢包使用方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6760958B2 (ja) * 2015-03-24 2020-09-23 ベスビウス ユーエスエー コーポレイション 構成された穿孔構造でライニングされた冶金容器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3528647A (en) * 1968-12-13 1970-09-15 Koppers Co Inc Insulating structure for use between the steel shell and the internal refractory lining in a metallurgical furnace
LU71573A1 (de) * 1974-12-30 1976-11-11
JPS63119971A (ja) * 1986-11-05 1988-05-24 Kobe Steel Ltd 溶鋼用鍋におけるノズル部周囲の煉瓦構造
JPH01289564A (ja) * 1988-05-13 1989-11-21 Aichi Steel Works Ltd 溶鋼用取鍋
DD282635A5 (de) * 1989-04-28 1990-09-19 Bandstahlkombinat Matern Veb Feuerfeste futteranordnung fuer metallurgische gefaesse
IT1243637B (it) * 1990-10-17 1994-06-16 Somergom Srl Additivo in polvere per massetti, intonaci, calcestruzzi e prefabbricati in genere con proprieta' isolanti ed impermeabilizzanti e con caratteristiche antiritiro.
DE4142029C2 (de) * 1991-12-19 1994-06-16 Didier Werke Ag Stahlgiesspfanne
JPH05296667A (ja) * 1992-04-17 1993-11-09 Nippon Steel Corp 溶融金属容器の築造構造

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407260A (en) * 2003-10-22 2005-04-27 Samsung Gwanju Electronics Co Bendable suction brush for a vacuum cleaner
GB2407260B (en) * 2003-10-22 2005-09-14 Samsung Gwanju Electronics Co Bendable suction brush for vacuum cleaner
CN103464735A (zh) * 2013-09-29 2013-12-25 武汉钢铁(集团)公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
WO2015043452A1 (zh) * 2013-09-29 2015-04-02 武汉钢铁(集团)公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
CN103464735B (zh) * 2013-09-29 2016-03-30 武汉钢铁集团耐火材料有限责任公司 提高冶炼钢包使用效率的方法及其高寿命低材耗冶炼钢包
CN112264612A (zh) * 2020-09-30 2021-01-26 江苏沙钢集团有限公司 一种钢包砌筑结构及钢包使用方法
CN112264612B (zh) * 2020-09-30 2022-01-18 江苏沙钢集团有限公司 一种钢包砌筑结构及钢包使用方法

Also Published As

Publication number Publication date
ITBA20010004A1 (it) 2002-07-16
ATE293504T1 (de) 2005-05-15
EP1222982B1 (de) 2005-04-20
DE60203744D1 (de) 2005-05-25
ES2240577T3 (es) 2005-10-16
DE60203744T2 (de) 2006-03-02
EP1222982A3 (de) 2003-07-16

Similar Documents

Publication Publication Date Title
Lee et al. Evolution of in situ refractories in the 20th century
CA2242243C (en) Nozzle for use in continuous casting of steel
EP1222982A2 (de) Auskleidung für Giesspfannen , Zwischengefässe und dergleiche Behältern zum Gebrauch in der Eisen- und Stahlindustrie
Chandra et al. Refractories and failures
AU2002309507B2 (en) Refactory article having a resin-bonded liner
KR101929640B1 (ko) 용융 금속 용기의 라이닝 구조체의 제조 방법 및 용융 금속 용기의 라이닝 구조체
AU2002309507A1 (en) Refactory article having a resin-bonded liner
Nandy et al. Selection of proper refractory materials for energy saving in aluminium melting and holding furnaces
JP2003042667A (ja) 溶湯容器の保護構造
Biswas et al. Blast furnace refractory
JPS5961567A (ja) 高耐用性スライデイングノズルプレ−ト
JPH0427290B2 (de)
JPS59137163A (ja) 耐火断熱性製品及び溶融金属取扱容器
JPS6232150B2 (de)
Banerjee Refractories: A Comprehensive Report
Nandy et al. Customised lining design for improvement in lining life of 150T steel ladle at rourkela steel plant
JPH07291748A (ja) 不定形耐火物の施工方法
JPH10170163A (ja) 金属精錬用窯炉の内張り耐火物の保護方法
JP3276055B2 (ja) 電気炉天井用プレキャストブロック
JPH11229028A (ja) 溶鋼真空脱ガス装置の内張り構造
JPH11320080A (ja) 断熱取鍋
JPH11131128A (ja) 精錬炉の内張り構造
JP2004197976A (ja) 高耐用性二次精錬容器の内張り構造
JPH03205347A (ja) マグネシア・カーボンれんが
JPS58185487A (ja) 取鍋用耐火煉瓦の付着層除去方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020110

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 22D 41/02 A

Ipc: 7F 27D 1/00 B

Ipc: 7C 21C 5/44 B

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20040414

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050420

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60203744

Country of ref document: DE

Date of ref document: 20050525

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050720

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050720

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050920

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2240577

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20060123

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20071210

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080124

Year of fee payment: 7

Ref country code: GB

Payment date: 20080102

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20071228

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080122

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050420

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090108

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090131

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090202

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090109