EP0090761A1 - Rinne für eine Metallschmelze - Google Patents

Rinne für eine Metallschmelze Download PDF

Info

Publication number
EP0090761A1
EP0090761A1 EP83630051A EP83630051A EP0090761A1 EP 0090761 A1 EP0090761 A1 EP 0090761A1 EP 83630051 A EP83630051 A EP 83630051A EP 83630051 A EP83630051 A EP 83630051A EP 0090761 A1 EP0090761 A1 EP 0090761A1
Authority
EP
European Patent Office
Prior art keywords
layer
channel according
refractory
thermal conductivity
channel
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
EP83630051A
Other languages
English (en)
French (fr)
Other versions
EP0090761B1 (de
Inventor
Georges Fleming
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.)
Arcelor Luxembourg SA
Original Assignee
Arbed SA
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 Arbed SA filed Critical Arbed SA
Priority to AT83630051T priority Critical patent/ATE32350T1/de
Publication of EP0090761A1 publication Critical patent/EP0090761A1/de
Application granted granted Critical
Publication of EP0090761B1 publication Critical patent/EP0090761B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag

Definitions

  • the present invention relates to a pouring channel intended to receive liquid metals from a furnace and in particular from the cast iron of a blast furnace.
  • Trenches comprising a wear refractory layer, in contact with the molten metal, enveloped by a permanent movement which is housed directly in the reinforced concrete slab of the pouring floor.
  • the channel fills with cast iron and slag which floats.
  • a baffle system allows density separation of the pig iron and the slag.
  • the channel is emptied and repair work must be carried out.
  • the accessibility of the hot channel as well as the duration of these works prevent a rapid re-use of the channel, which is incompatible with the rate of casting of modern blast furnaces.
  • Rehabilitation involves a large volume of strenuous work. Consequently, the technique of using the channel has been modified in order to permanently store in it a bath of liquid iron covered with a more or less significant layer of slag.
  • the temperature of the cast iron can drop after around 1,500 ° C to around 1,300 ° C.
  • the permanent presence of liquid iron in the channel results in a continuous thermal flow towards the reinforced concrete of the slab of the pouring floor which heats up in its mass, which causes stresses of expansion, bursts and cracks.
  • the support sheet and the refractory lining undergo differential expansion, which does not fail to cause stresses and cracks in the refractory lining, especially when the thermal regime to which the channel is subjected is variable p .ex. in case of occasional emptying of the channel during a shutdown of the blast furnace. These cracks allow the cast iron to infiltrate the refractory lining and this results in breakthroughs in the channel.
  • the object of the present invention is to propose a channel which does not have the defects described above and which is capable of being installed directly in the reinforced concrete structures of the pouring floor.
  • the channel according to the invention the refractory material of which is surrounded by a practically isothermal layer in which prevails a temperature preferably less than 100 ° C.
  • a practically isothermal layer in which prevails a temperature preferably less than 100 ° C.
  • the advantages of the channel are due to the presence of a layer of material maintained at low temperature and practically isothermal, which limits the heating of the support structures of the channel, which by its great capacity of distribution and evacuation of calories freezes all liquid metal infiltration into the permanent refractory lining of the channel.
  • the overall cooling rate is always quite low, so that the cast iron remains liquid even if the interval between two successive flows is 5 to 8 hours.
  • a cast iron bath 1, carrying a layer of slag 2, is in contact with a wear layer 3, the cross section of which is U-shaped.
  • This wear layer 3, formed by an unshaped material, is produced on a permanent covering 4, which in the present case consists of two layers of overlapping bricks.
  • the outer layer of bricks rests against graphite blocks 7 and cooling elements 10.
  • These elements 10 disposed both in the side walls and in the bottom of the channel are formed by sealed longitudinal conduits 5, in which circulates water, sandwiched between flat graphite bricks 6 and 8.
  • the bricks 8 are in contact with the permanent coating 4.
  • the space 9 between the conduits 5, the bricks 6 and 8 as well as the graphite blocks 7, is filled with an unshaped material, good conductor of heat, ensuring good thermal contact with the cooling tubes.
  • the unshaped material also allows expansion of the conduits caused by small temperature variations.
  • the channel is housed in a reinforced concrete slab 12.
  • An equalizing layer 11 eliminates the roughness of the concrete.
  • the graphite blocks 6,7,8 excellent heat conductors create a practically uniform temperature zone around the permanent coating 4. This temperature is controlled essentially by the flow and the temperature of the cooling water. The assembly is adjusted so as to make the temperature at the reinforced concrete - cooling layer interface prevail below 100 ° C and preferably around 60 ° C.
  • the permanent coating 4 made of bricks capable of withstanding the direct action of cast iron constitutes a thermal barrier which prevents the cooling system from drawing too much heat from the liquid cast iron.
  • the material of the bricks resp. the number of brick layers to be superimposed is chosen in accordance with the desired degree of thermal insulation. Prehistoric cooling of certain highly stressed areas can be achieved by a judicious choice of the quality of the bricks of the refractory lining of the permanent layer. To drastically reduce the erosion of the wear layer, at the points where it is particularly stressed, one can replace some of the bricks of the coating 4 by bricks with high thermal conductivity 4a, which are preferably made of semi-graphite .
  • conduits guiding the cooling fluid may be advantageous to fix the conduits guiding the cooling fluid to the outside thereon, eg by welding.
  • the channel Since it is easy to maintain a temperature below 80 ° C in the isothermal zone, the channel is particularly suitable for being housed directly in the concrete structure. from the casting floor.
  • the conduits guiding the coolant outside the construction can be arranged. ex. by welding U irons along the sheet. heat between the low temperature zone and the cooling system in this case passes through the support sheets that there is significant heating (temperature below 100 ° C).
  • the spacing, shape and arrangement of the conduits must be chosen as a function of the thermal conductivity and the thickness of the layer constituting the low temperature zone as well as the desired temperature profile in the refractory lining.
  • the conduits can be supplied in parallel or in series. To optimize the operation of the channel, the temperature of the coolant can be monitored and the flow rate can be varied depending on the temperature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Blast Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Ceramic Products (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
EP83630051A 1982-03-26 1983-03-15 Rinne für eine Metallschmelze Expired EP0090761B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83630051T ATE32350T1 (de) 1982-03-26 1983-03-15 Rinne fuer eine metallschmelze.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU84042 1982-03-26
LU84042A LU84042A1 (fr) 1982-03-26 1982-03-26 Rigole de coulee pour metaux liquides

Publications (2)

Publication Number Publication Date
EP0090761A1 true EP0090761A1 (de) 1983-10-05
EP0090761B1 EP0090761B1 (de) 1988-02-03

Family

ID=19729848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83630051A Expired EP0090761B1 (de) 1982-03-26 1983-03-15 Rinne für eine Metallschmelze

Country Status (15)

Country Link
US (1) US4508323A (de)
EP (1) EP0090761B1 (de)
JP (1) JPS58181812A (de)
KR (1) KR910001483B1 (de)
AR (1) AR230579A1 (de)
AT (1) ATE32350T1 (de)
AU (1) AU554627B2 (de)
BR (1) BR8301539A (de)
CA (1) CA1210583A (de)
DE (1) DE3375582D1 (de)
ES (1) ES8407101A1 (de)
LU (1) LU84042A1 (de)
MX (1) MX158032A (de)
PT (1) PT76439B (de)
ZA (1) ZA832009B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143971A1 (de) * 1983-10-28 1985-06-12 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Abstichrinne für einen Schachtofen
EP0404212A1 (de) * 1989-06-21 1990-12-27 Hoogovens Groep B.V. Rinne für eine Roheisenschmelze
US5088695A (en) * 1991-03-05 1992-02-18 Hoogovens Groep Bv Iron runner
EP0501045A1 (de) * 1991-02-27 1992-09-02 Hoogovens Groep B.V. Roheisen-Abstichrinne
NL1003885C2 (nl) * 1996-08-27 1998-03-03 Hoogovens Tech Services Goot voor een hete smelt en gootsysteem.
LU90195B1 (de) * 1998-01-15 1999-07-16 Wurth Paul Sa Abstichrinne fuer eine Eisenschmelze
CN101934434A (zh) * 2010-09-26 2011-01-05 大庆市锐虹机械制造有限公司 铸铁热补焊工艺及装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8803103A (nl) * 1988-12-19 1990-07-16 Hoogovens Groep Bv Ijzergoot.
NL1007881C2 (nl) * 1997-12-23 1999-06-24 Hoogovens Tech Services Goot voor het geleiden van een stroom vloeibaar metaal.
JP5546874B2 (ja) * 2010-01-13 2014-07-09 東京窯業株式会社 溶銑・ノロ樋
CA2876518C (en) * 2012-06-14 2017-03-28 Les Produits Industriels De Haute Temperature Pyrotek Inc. Receptacle for handling molten metal, casting assembly and manufacturing method
CN106270475B (zh) * 2016-11-10 2018-11-06 芜湖新兴铸管有限责任公司 浇注包定型包嘴
CN110331247A (zh) * 2019-08-21 2019-10-15 北京瑞尔非金属材料有限公司 一种冷却型铁水主沟和冷却方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB257261A (en) * 1925-08-20 1927-07-21 Carborundum Co Improvements in or relating to furnaces
FR2066312A5 (de) * 1969-11-12 1971-08-06 Demag Ag
FR2243404A1 (de) * 1973-09-12 1975-04-04 Hoogovens Ijmuiden Bv
EP0023716A1 (de) * 1979-08-03 1981-02-11 Nippon Steel Corporation Hochofen und Verfahren zum Betrieb
EP0040440A2 (de) * 1980-03-21 1981-11-25 Hoogovens Groep B.V. Schachtofen, insbesondere die feuerfeste Konstruktion dessen Gestellbodens
EP0060239A1 (de) * 1981-03-04 1982-09-15 VOEST-ALPINE Aktiengesellschaft Rinne für eine Metallschmelze

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS422321Y1 (de) * 1964-09-03 1967-02-13
SU392093A1 (ru) * 1971-05-14 1973-07-27 Всесоюзный научно исследовательский , проектный институт очистке технологических газов, сточных вод , использованию вторичных энергоресурсов предпри тий черной металлургии Желоб для выпуска чугуна

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB257261A (en) * 1925-08-20 1927-07-21 Carborundum Co Improvements in or relating to furnaces
FR2066312A5 (de) * 1969-11-12 1971-08-06 Demag Ag
FR2243404A1 (de) * 1973-09-12 1975-04-04 Hoogovens Ijmuiden Bv
EP0023716A1 (de) * 1979-08-03 1981-02-11 Nippon Steel Corporation Hochofen und Verfahren zum Betrieb
EP0040440A2 (de) * 1980-03-21 1981-11-25 Hoogovens Groep B.V. Schachtofen, insbesondere die feuerfeste Konstruktion dessen Gestellbodens
EP0060239A1 (de) * 1981-03-04 1982-09-15 VOEST-ALPINE Aktiengesellschaft Rinne für eine Metallschmelze

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 4, no. 166(C-31)(648), 18 novembre 1980, page 51C31 & JP-A-55 107 707 (SUMITOMO KINZOKU KOGYO K.K.) 19-08-1980 *
PATENTS ABSTRACTS OF JAPAN, vol. 5, no. 156(C-74)(828), 6 octobre 1981 & JP-A-56 087612 (SHIN NIPPON SEITETSU K.K.) 16-07-1981 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0143971A1 (de) * 1983-10-28 1985-06-12 Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH Abstichrinne für einen Schachtofen
EP0404212A1 (de) * 1989-06-21 1990-12-27 Hoogovens Groep B.V. Rinne für eine Roheisenschmelze
US5031882A (en) * 1989-06-21 1991-07-16 Hoogovens Groep B.V. Channel structure for flow of molten pig iron
EP0501045A1 (de) * 1991-02-27 1992-09-02 Hoogovens Groep B.V. Roheisen-Abstichrinne
US5088695A (en) * 1991-03-05 1992-02-18 Hoogovens Groep Bv Iron runner
NL1003885C2 (nl) * 1996-08-27 1998-03-03 Hoogovens Tech Services Goot voor een hete smelt en gootsysteem.
WO1998008982A1 (en) * 1996-08-27 1998-03-05 Hoogovens Technical Services Europe B.V. Runner for a hot melt, runner system and method for conveying a hot melt
US6090340A (en) * 1996-08-27 2000-07-18 Hoogovens Technical Services Europe Bv Runner for a hot melt, runner system and method for conveying a hot melt
LU90195B1 (de) * 1998-01-15 1999-07-16 Wurth Paul Sa Abstichrinne fuer eine Eisenschmelze
WO1999036580A1 (de) * 1998-01-15 1999-07-22 Paul Wurth S.A. Abstichrinne für eine eisenschmelze
CN101934434A (zh) * 2010-09-26 2011-01-05 大庆市锐虹机械制造有限公司 铸铁热补焊工艺及装置
CN101934434B (zh) * 2010-09-26 2012-10-03 大庆市锐虹机械制造有限公司 铸铁热补焊工艺及装置

Also Published As

Publication number Publication date
AU554627B2 (en) 1986-08-28
US4508323A (en) 1985-04-02
JPH0225962B2 (de) 1990-06-06
PT76439A (fr) 1983-04-01
AR230579A1 (es) 1984-05-31
PT76439B (fr) 1985-12-20
DE3375582D1 (en) 1988-03-10
EP0090761B1 (de) 1988-02-03
ATE32350T1 (de) 1988-02-15
ES520463A0 (es) 1984-08-16
LU84042A1 (fr) 1983-11-17
ZA832009B (en) 1983-11-30
MX158032A (es) 1988-12-18
ES8407101A1 (es) 1984-08-16
AU1269083A (en) 1983-09-29
KR840003970A (ko) 1984-10-06
JPS58181812A (ja) 1983-10-24
CA1210583A (fr) 1986-09-02
KR910001483B1 (ko) 1991-03-09
BR8301539A (pt) 1983-12-06

Similar Documents

Publication Publication Date Title
EP0090761B1 (de) Rinne für eine Metallschmelze
CA2119596C (fr) Procede et dispositif pour la fusion du verre
JP4653758B2 (ja) 溶融金属のための加熱樋
FR2493871A1 (fr) Plaques de refroidissement pour hauts fourneaux
EP0430740B1 (de) Plattenkühler für Hochöfen und eine aus solchen Kühlelementen zusammengesetzte Einrichtung
CA1086806A (fr) Poche metallurgique pour les traitements inductifs des metaux
Smith et al. Toward understanding pore formation and mobility during controlled directional solidification in a microgravity environment investigation (PFMI)
JP3785449B2 (ja) 高炉鋳床樋の耐火物構造
EP0012132A1 (de) Metallische Kühlelemente für Industrieöfen
FR2537261A1 (fr) Procede et dispositif pour l'utilisation d'un four a arc a courant continu
FR2354525A1 (fr) Appareillage de fusion et de coulee
BE897590A (fr) Elements moules d'isolation destines au revetement de conduits refroidis de chaufferies
FR2707272A1 (fr) Perfectionnements apportés aux rouleaux refroidis pour la manutention de produits notamment métallurgiques et sidérurgiques.
JP4655301B2 (ja) 金属の溶解出湯装置
EP0043329B1 (de) Elektrischer Lichtbogenofen mit gesteuertem Betrieb
FR2520101A1 (fr) Recipients metallurgiques revetus d'un garnissage refractaire a tenue amelioree
FR2489948A1 (fr) Dispositif pour elaborer et couler un bain fondu de matieres minerales ou metalliques
FR2530325A1 (fr) Dispositif pour refroidissement de la paroi de four metallurgique
FR2606128A1 (fr) Four electrique de fusion
BE560197A (de)
EP0410829A1 (de) Verfahren zum Heizen eines Metallbades
EP0531393A1 (de) Verfahren und ofen für die graphitisierung
BE413573A (de)
BE633568A (de)
FR2526928A1 (fr) Dispositif de refroidissement de la paroi d'un four metallurgique

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19840321

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 32350

Country of ref document: AT

Date of ref document: 19880215

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. C. GREGORJ S.P.A.

REF Corresponds to:

Ref document number: 3375582

Country of ref document: DE

Date of ref document: 19880310

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910206

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19910209

Year of fee payment: 9

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

Ref country code: BE

Payment date: 19910219

Year of fee payment: 9

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

Ref country code: GB

Payment date: 19910304

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19910313

Year of fee payment: 9

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

Ref country code: SE

Payment date: 19910320

Year of fee payment: 9

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910331

Year of fee payment: 9

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

Ref country code: GB

Effective date: 19920315

Ref country code: AT

Effective date: 19920315

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

Ref country code: SE

Effective date: 19920316

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

Ref country code: BE

Effective date: 19920331

BERE Be: lapsed

Owner name: S.A. ARBED

Effective date: 19920331

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

Ref country code: NL

Effective date: 19921001

GBPC Gb: european patent ceased through non-payment of renewal fee
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19921130

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

Ref country code: DE

Effective date: 19921201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 83630051.7

Effective date: 19921005