EP0501045A1 - Roheisen-Abstichrinne - Google Patents

Roheisen-Abstichrinne Download PDF

Info

Publication number: EP0501045A1
Authority: EP; European Patent Office
Prior art keywords: lining; iron; wear; runner; thickening
Prior art date: 1991-02-27
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

EP91200420A

Other languages

English (en)

French (fr)

Inventor

Jacobus Van Laar

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.)

Tata Steel Ijmuiden BV

Original Assignee

Hoogovens Groep BV

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.)

1991-02-27

Filing date

1991-02-27

Publication date

1992-09-02

1991-02-27 Application filed by Hoogovens Groep BV filed Critical Hoogovens Groep BV

1991-02-27 Priority to EP91200420A priority Critical patent/EP0501045A1/de

1992-09-02 Publication of EP0501045A1 publication Critical patent/EP0501045A1/de

Status Withdrawn legal-status Critical Current

Links

XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 69
229910052742 iron Inorganic materials 0.000 title claims abstract description 34
230000008719 thickening Effects 0.000 claims abstract description 11
239000002893 slag Substances 0.000 claims abstract description 8
238000010079 rubber tapping Methods 0.000 claims abstract description 3
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
229910002804 graphite Inorganic materials 0.000 description 3
239000010439 graphite Substances 0.000 description 3
229910052799 carbon Inorganic materials 0.000 description 2
238000001816 cooling Methods 0.000 description 2
229910000831 Steel Inorganic materials 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000000463 material Substances 0.000 description 1
230000002035 prolonged effect Effects 0.000 description 1
239000010959 steel Substances 0.000 description 1

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 invention relates to an iron runner for tapping molten crude iron from a blast furnace, comprising at least a wear lining which forms a boundary carrying the iron during operation and a permanent lining in which the wear lining is contained, a steel or concrete outer boundary and at least an outer lining with a high coefficient of thermal conductivity which lining is provided between the outer boundary and the permanent lining.
Such an iron runner is known from the 'Iron & Steel Engineer' of October 1988, pages 47 - 51.
a problem of this known iron runner is the substantial wear which occurs especially at the level of the iron/slag interface-layer, and which eventually necessitates repair of the wear lining carrying iron during operation. This is particularly a problem because this wear is quite substantial in the vicinity of the interface-layer due to the highly abrasive action of the slag, which when repairing makes it necessary to pull down a wear lining that is still intact for the greater part.
the object of the invention is to make the wear of the wear lining proceed more evenly, which enables the service life of the iron runner to be prolonged and the iron runner to be operated at lower operational costs.
the iron runner in accordance with the invention is characterised in that the outer lining is provided with a thickening in the direction of the wear lining, which thickening is applied at the level of the interface-layer being present during operation between the iron being carried through the runner and a slag layer floating on the iron.
Fig. 1 shows a cross-section of the iron runner in accordance with the invention.
Fig. 1 the iron runner (1) is shown of which the boundary carrying the iron is formed by a wear lining (2).
the wear lining (2) which may consist of a number of layers able to move relative to each other, different kinds of material may be used, but it is normal to use a refractory concrete for this.
a carbon intermediate lining (3) may be used as a permanent lining for temperature equalisation of the wear lining (2).
this intermediate lining (3) is not essential to the invention.
an insulating layer (4) Adjoining this intermediate lining (3) and in the absence thereof, adjoining the wear lining (2), an insulating layer (4) is provided which consists of a refractory concrete.
the outer lining (6, 7) consists of a bottom plate (6) and side walls (7) which are thermally interconnected.
carbon, graphite or semi-graphite, but preferably graphite for the outer lining (6, 7) the required thermal conductivity is obtained in this place and it is possible to apply insulating refractory lining layers (8, 9) directly adjoining the side walls (7).
the thermally high-conducting side walls (7) of the iron runner (1) are now also provided with a thickening (10) in the direction of the wear lining (2), which thickening (10) is applied at the level of the interface-layer being present during operation between the iron (11) being carried and the slag layer (12) floating on it.
the thickening (10) adjoins directly the wear lining (2).

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Manufacturing & Machinery (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Blast Furnaces (AREA)

EP91200420A 1991-02-27 1991-02-27 Roheisen-Abstichrinne Withdrawn EP0501045A1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP91200420A EP0501045A1 (de)	1991-02-27	1991-02-27	Roheisen-Abstichrinne

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP91200420A EP0501045A1 (de)	1991-02-27	1991-02-27	Roheisen-Abstichrinne

Publications (1)

Publication Number	Publication Date
EP0501045A1 true EP0501045A1 (de)	1992-09-02

Family

ID=8207530

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91200420A Withdrawn EP0501045A1 (de)	1991-02-27	1991-02-27	Roheisen-Abstichrinne

Country Status (1)

Country	Link
EP (1)	EP0501045A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0090761A1 (de) *	1982-03-26	1983-10-05	Arbed S.A.	Rinne für eine Metallschmelze
EP0143971A1 (de) *	1983-10-28	1985-06-12	Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH	Abstichrinne für einen Schachtofen
EP0375007A1 (de) *	1988-12-19	1990-06-27	Hoogovens Groep B.V.	Behandlung von geschmolzenen Materialien

1991
- 1991-02-27 EP EP91200420A patent/EP0501045A1/de not_active Withdrawn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0090761A1 (de) *	1982-03-26	1983-10-05	Arbed S.A.	Rinne für eine Metallschmelze
EP0143971A1 (de) *	1983-10-28	1985-06-12	Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH	Abstichrinne für einen Schachtofen
EP0375007A1 (de) *	1988-12-19	1990-06-27	Hoogovens Groep B.V.	Behandlung von geschmolzenen Materialien

Legal Events

Date	Code	Title	Description
1992-07-17	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
1992-09-02	17P	Request for examination filed	Effective date: 19910227
1992-09-02	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE DE ES FR IT LU NL
1994-08-17	17Q	First examination report despatched	Effective date: 19940630
1995-06-19	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1995-08-09	18D	Application deemed to be withdrawn	Effective date: 19950207

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EP0922115B1 (de)	2001-11-21	Rinne für eine schmelze, rinnenanlage und verfahren zum transport einer heissen schmelze
EP0076577B1 (de)	1986-05-07	Rinne für Metallschmelzen
JPH08246014A (ja)	1996-09-24	高炉水冷溶滓樋
US5088695A (en)	1992-02-18	Iron runner
MY141390A (en)	2010-04-30	Refractory wall structure
JPS58181812A (ja)	1983-10-24	溶融金属用湯口
ES8405135A1 (es)	1984-05-16	Un panel de horno para uso en un horno de arco electrico.
CA2037648A1 (en)	1992-09-07	Iron runner
EP0434421A3 (en)	1992-03-11	Protective layer for linings in metallurgical furnaces and the like
US3820770A (en)	1974-06-28	Sub hearth construction for metallurgical furnaces
Van Larr et al.	1987	Blast furnace refractories and cooling systems-the Hoogovens solution
NL8903009A (nl)	1991-07-01	Ijzergoot.
Van Laar	1992	Iron Runner
US4418893A (en)	1983-12-06	Water-cooled refractory lined furnaces
Griffiths	1990	Technical and Economic Advantages of Long-Campaign Cold-Blast Cupolas
JPH04319066A (ja)	1992-11-10	溶融金属受湯容器
US2085925A (en)	1937-07-06	Tuyere
Barton	1926	Refining metals electrically
Whiteley	1990	Developments in critical areas of blast furnace linings
forms SiC	1936	Development of refractories for BF troughs
Mizoguchi et al.	1992	IMPROVEMENT ACTIVITIES OF LIFE PROLONGATION AT NAKAYAMA NO. 2 BLAST FURNACE
Morimoto et al.	1982	Upgrading relining of Mizushima no. 4 blast furnace for a longer Campaign
Russell et al.	1990	Refractory performance at LTV Steel's ladle metallurgy facility, Indiana Harbor Works