CA1084666A - Continuous casting plant - Google Patents
Continuous casting plantInfo
- Publication number
- CA1084666A CA1084666A CA297,800A CA297800A CA1084666A CA 1084666 A CA1084666 A CA 1084666A CA 297800 A CA297800 A CA 297800A CA 1084666 A CA1084666 A CA 1084666A
- Authority
- CA
- Canada
- Prior art keywords
- mould
- tundish
- continuous
- outflow opening
- casting
- 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.)
- Expired
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
-
- 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
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
-
- 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
- B22D41/50—Pouring-nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
A continuous casting plant, in particular a steel slab casting plant, includes a continuous mould arranged below a tundish with an outflow opening from which molten metal flows through a casting tube into the continuous mould, the tundish being arranged laterally above the continuous mould, thus leaving free the vertical space above the continuous mould.
A continuous casting plant, in particular a steel slab casting plant, includes a continuous mould arranged below a tundish with an outflow opening from which molten metal flows through a casting tube into the continuous mould, the tundish being arranged laterally above the continuous mould, thus leaving free the vertical space above the continuous mould.
Description
The invention relates to a continuous casting plant, in particular a steel slab casting plant, provided with a continuous mould and a tundish arranged above the mould, out of which molten metal flows through an outflow opening into the mould, via a casting tube ending below the metal level in the mould.
; In known plants of this kind, the tundish is arranged directly above the mould, the molten metal flowing into the mould through a casting tube inserted in the bottom of the tundish and extending vertically into the mould cavity. Here, it is disadvantageous that the tundish to a great ; 10 extent covers the mould cavity, so that the mould cavity and the bath level therein are thus difficult to observe and reach, particularly in case of narrow and small casting cross sections. Therefore, observation of the bath, taking out slag crusts and removing skulls resulting from overflow, are very difficult to perform in continuous casting plants of known construction.
The invention aims at avoiding these disadvantages and difficulties and has as its object to create a continuous casting plant in which the bath level in the mould during casting is accessible without hindrance and can -` readily be observed, and in which slag crusts and skulls can be removed easily.
The invention provides in a continuous steel casting plant, of the type including a continuous mould for casting slabs having a mould cavity, a tundish with side walls arranged above the continuous mould and having an outflow opening, and a refractory material casting tube arranged so as to connect said outflow opening with said continuous mould, molten steel flowing from ~aid outflow opening through said casting tube into said continuous mould and forming a metal level therein, said casting tube ending below said metal level in said continuous mould, the improvement characterized in that said tundish is arranged laterally above said continuous mould so as to leave . ~ .
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,. . . , , : . , ~0~1~666 free a space vertically above said mould cavity, the outflow opening of said tundish being provided on a lower part of one of its side walls, and said refractory material casting tube has generally horizontal and vertical tube sections so as to directly connect the outflow opening of said laterally arranged tundish to said mould.
Since the outflow opening is provided on the side wall of the tundish the accessibility of the casting tube fastening is good, so that the casting tube can be exchanged more easily and rapidly than hitherto.
Suitably, the o~tfl w opening is closeable with an ,'' '"
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approximately L-shaped stopper displaceable in horizontal direction.
The stopper advantageously can be closeable with a slider arranged on the outer side of the side wall.
Flow conditions are favourable, if the casting tube is annexed to the outflow opening with a horizontally extending tube section, from which a vertically directed tube section pro-jects into the mould cavity.
In order to prevent slag from flowing into the mould, the outflow opening is suitably arranged in a depression of the tundish.
The invention shall now be described in more detail by ; way of two embodiments and with reference to the accompanying drawing, wherein Figs. 1 and 2 are each one embodiment in the vertical sectionl schematically illustrated.
A tundish is denoted by 1, into which molten steel 2 is poured from a casting ladle not illustrated. Below the tundish a water cooled continuous mould 3 is arranged, the molten steel flowing from an outflow opening 5 of the tundish through a castiny tube 6 into the mould cavity 4.
According to the invention the tundish 1 is arranged laterally above the mould 3, so that the space 7 above the mould cavity 4 remains free and the cavi-ty 4 is not covered by the bottom 8 of the tundish.
The outflow opening 5 is provided on the side wall 9 of the tundish, which is most closely arranged to the mould, in the ; region of a depression 10 of the bottom 8. The casting tube is fastened on the outer side of -the side wall 9 by means of a bayonet catch 11. The casting tube comprises a tube section 12
; In known plants of this kind, the tundish is arranged directly above the mould, the molten metal flowing into the mould through a casting tube inserted in the bottom of the tundish and extending vertically into the mould cavity. Here, it is disadvantageous that the tundish to a great ; 10 extent covers the mould cavity, so that the mould cavity and the bath level therein are thus difficult to observe and reach, particularly in case of narrow and small casting cross sections. Therefore, observation of the bath, taking out slag crusts and removing skulls resulting from overflow, are very difficult to perform in continuous casting plants of known construction.
The invention aims at avoiding these disadvantages and difficulties and has as its object to create a continuous casting plant in which the bath level in the mould during casting is accessible without hindrance and can -` readily be observed, and in which slag crusts and skulls can be removed easily.
The invention provides in a continuous steel casting plant, of the type including a continuous mould for casting slabs having a mould cavity, a tundish with side walls arranged above the continuous mould and having an outflow opening, and a refractory material casting tube arranged so as to connect said outflow opening with said continuous mould, molten steel flowing from ~aid outflow opening through said casting tube into said continuous mould and forming a metal level therein, said casting tube ending below said metal level in said continuous mould, the improvement characterized in that said tundish is arranged laterally above said continuous mould so as to leave . ~ .
i., ... . ~, ~ , , ~ . :
: . . , - . . : . . : .
- . ., .. . . : . . ,.. . ,.. . . . . : - .
. .. ,, . .. . . . . ~ . ~ ,.: .-.
..... , ~ . -: , ,, ' .. : . , ' . ' ., ,, , - - :
., ,.', . . ' , ' :: : :.
. . . . . . . .
,. . . , , : . , ~0~1~666 free a space vertically above said mould cavity, the outflow opening of said tundish being provided on a lower part of one of its side walls, and said refractory material casting tube has generally horizontal and vertical tube sections so as to directly connect the outflow opening of said laterally arranged tundish to said mould.
Since the outflow opening is provided on the side wall of the tundish the accessibility of the casting tube fastening is good, so that the casting tube can be exchanged more easily and rapidly than hitherto.
Suitably, the o~tfl w opening is closeable with an ,'' '"
,.
~`
;
,' .~
.
,,,~
.
i'' la--,.
~ . , , . , , , . ::,, . : . , :., .:
- - : . : :: :
, ' .,, ::' '' ' . ' ':
,' ' ~ ' . ' . , , 6~
approximately L-shaped stopper displaceable in horizontal direction.
The stopper advantageously can be closeable with a slider arranged on the outer side of the side wall.
Flow conditions are favourable, if the casting tube is annexed to the outflow opening with a horizontally extending tube section, from which a vertically directed tube section pro-jects into the mould cavity.
In order to prevent slag from flowing into the mould, the outflow opening is suitably arranged in a depression of the tundish.
The invention shall now be described in more detail by ; way of two embodiments and with reference to the accompanying drawing, wherein Figs. 1 and 2 are each one embodiment in the vertical sectionl schematically illustrated.
A tundish is denoted by 1, into which molten steel 2 is poured from a casting ladle not illustrated. Below the tundish a water cooled continuous mould 3 is arranged, the molten steel flowing from an outflow opening 5 of the tundish through a castiny tube 6 into the mould cavity 4.
According to the invention the tundish 1 is arranged laterally above the mould 3, so that the space 7 above the mould cavity 4 remains free and the cavi-ty 4 is not covered by the bottom 8 of the tundish.
The outflow opening 5 is provided on the side wall 9 of the tundish, which is most closely arranged to the mould, in the ; region of a depression 10 of the bottom 8. The casting tube is fastened on the outer side of -the side wall 9 by means of a bayonet catch 11. The casting tube comprises a tube section 12
- 2 -.. -.
:
,. . . . .
extendiny horizontally from the outflow opening to about the middle of the mould, and from the end of this tube section 12 a vertically extending tube section 13 extends to below the bath level 15 covered with a slag layer 14. That part of the casting tube from which the horizontal section enters into the vertical one suitably is reinforced and designed like a tube knee. At the end of the horizontally extending section 12 a connection 16 for introducing flush gas is provided. For locking the outflow opening an approximately L-shaped stopper 1~
displaceable in horizontal direction by means of a horizontally arranged connecting rod 17 is provided in the embodiment according to Fig. 1.
According to the embodiment of Fig. 2, the outflow opening 5 is lockable by a slider 19, the casting tube 20 being fastened to the slider. The slider, by being arranged on the side wall of the tundish, is easily accessible and can thus be attended easily.
.
.
:
'~ ' :
~ ' ', ' , , .
:
,. . . . .
extendiny horizontally from the outflow opening to about the middle of the mould, and from the end of this tube section 12 a vertically extending tube section 13 extends to below the bath level 15 covered with a slag layer 14. That part of the casting tube from which the horizontal section enters into the vertical one suitably is reinforced and designed like a tube knee. At the end of the horizontally extending section 12 a connection 16 for introducing flush gas is provided. For locking the outflow opening an approximately L-shaped stopper 1~
displaceable in horizontal direction by means of a horizontally arranged connecting rod 17 is provided in the embodiment according to Fig. 1.
According to the embodiment of Fig. 2, the outflow opening 5 is lockable by a slider 19, the casting tube 20 being fastened to the slider. The slider, by being arranged on the side wall of the tundish, is easily accessible and can thus be attended easily.
.
.
:
'~ ' :
~ ' ', ' , , .
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a continuous steel casting plant, of the type including a con-tinuous mould for casting slabs having a mould cavity, a tundish with side walls arranged above the continuous mould and having an outflow opening, and a refractory material casting tube arranged so as to connect said outflow opening with said continuous mould, molten steel flowing from said outflow opening through said casting tube into said continuous mould and forming a metal level therein, said casting tube ending below said metal level in said continuous mould, the improvement characterized in that said tundish is arranged laterally above said continuous mould so as to leave free a space vertically above said mould cavity, the outflow opening of said tundish being provided on a lower part of one of its side walls, and said refractory mater-ial casting tube has generally horizontal and vertical tube sections so as to directly connect the outflow opening of said laterally arranged tundish to said mould.
2. A continuous casting plant as set forth in claim 1, wherein a horizontally displaceable, approximately L-shaped stopper is provided for closing the outflow opening of the tundish.
3. A continuous casting plant as set forth in claim 1, wherein a slider is secured to the side wall containing the outflow opening at the outside thereof, said outflow opening of said tundish being closeable by said slider.
4. A continuous casting plant as set forth in claim 1, wherein said casting tube has its horizontally directed tube section annexed to said out-flow opening of said tundish and its vertically directed tube section extend-ing from said horizontally directed tube section into said mould cavity and wherein a reinforced knee section connects the horizontal and vertical tube sections.
5. A continuous casting plant as set forth in claim 1, wherein said tundish has a bottom provided with a depression, said outflow opening being arranged in said depression.
6. A continuous casting plant as set forth in claim 4, further includ-ing means for applying a flush gas to said reinforced knee section.
7. A continuous casting plant as set forth in claim 1 wherein said casting tube is connected to said outflow opening by a bayonet connection.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT186877 | 1977-03-18 | ||
| ATA1868/77 | 1977-03-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1084666A true CA1084666A (en) | 1980-09-02 |
Family
ID=3522734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA297,800A Expired CA1084666A (en) | 1977-03-18 | 1978-02-27 | Continuous casting plant |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS53116226A (en) |
| BE (1) | BE864824A (en) |
| BR (1) | BR7801606A (en) |
| CA (1) | CA1084666A (en) |
| DE (1) | DE2811124A1 (en) |
| ES (1) | ES467516A1 (en) |
| FR (1) | FR2383731A1 (en) |
| GB (1) | GB1601165A (en) |
| IT (1) | IT1093528B (en) |
| SE (1) | SE7801383L (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1013748A3 (en) * | 2000-10-11 | 2002-07-02 | Ct Rech Metallurgiques Asbl | Device for continuous direct casting of steel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE844804C (en) * | 1944-02-04 | 1952-07-24 | Wieland Werke Ag | Intermediate vessel for the continuous pouring of full metal flows |
| GB786334A (en) * | 1952-03-29 | 1957-11-13 | Derick Rolfe Martin | Improvements in or relating to apparatus for continuous casting |
| GB762311A (en) * | 1954-04-28 | 1956-11-28 | Continuous Casting Company Ltd | Improvements relating to tundishes |
| DE1291760B (en) * | 1963-11-08 | 1969-04-03 | Suedwestfalen Ag Stahlwerke | Process and device for discontinuous and continuous vacuum melting and casting of steel and steel-like alloys (super alloys) |
| FR1441657A (en) * | 1965-04-27 | 1966-06-10 | Siderurgie Fse Inst Rech | Metal casting refinements |
| CH558223A (en) * | 1973-08-07 | 1975-01-31 | Fischer Ag Georg | PROCESS FOR SEPARATING SLAG AND OTHER CONTAMINATION FROM METAL MELT IN CONTINUOUS CASTING PLANTS AND CONTINUOUS CASTING PLANT FOR PERFORMING THE PROCESS. |
-
1978
- 1978-02-07 SE SE7801383A patent/SE7801383L/en unknown
- 1978-02-27 CA CA297,800A patent/CA1084666A/en not_active Expired
- 1978-03-02 ES ES467516A patent/ES467516A1/en not_active Expired
- 1978-03-02 GB GB8359/78A patent/GB1601165A/en not_active Expired
- 1978-03-06 FR FR7806275A patent/FR2383731A1/en active Pending
- 1978-03-13 IT IT21164/78A patent/IT1093528B/en active
- 1978-03-13 BE BE185878A patent/BE864824A/en unknown
- 1978-03-15 JP JP2881178A patent/JPS53116226A/en active Pending
- 1978-03-15 DE DE19782811124 patent/DE2811124A1/en not_active Withdrawn
- 1978-03-16 BR BR7801606A patent/BR7801606A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2383731A1 (en) | 1978-10-13 |
| ES467516A1 (en) | 1978-10-16 |
| GB1601165A (en) | 1981-10-28 |
| BE864824A (en) | 1978-07-03 |
| BR7801606A (en) | 1978-10-17 |
| SE7801383L (en) | 1978-09-19 |
| IT7821164A0 (en) | 1978-03-13 |
| JPS53116226A (en) | 1978-10-11 |
| DE2811124A1 (en) | 1978-09-21 |
| IT1093528B (en) | 1985-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |