EP1036848A1 - Abstichrinne für einen Schachtofen - Google Patents
Abstichrinne für einen Schachtofen Download PDFInfo
- Publication number
- EP1036848A1 EP1036848A1 EP00105167A EP00105167A EP1036848A1 EP 1036848 A1 EP1036848 A1 EP 1036848A1 EP 00105167 A EP00105167 A EP 00105167A EP 00105167 A EP00105167 A EP 00105167A EP 1036848 A1 EP1036848 A1 EP 1036848A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- tapping
- lining
- shaped cooling
- trough
- 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
Links
- 238000001816 cooling Methods 0.000 claims abstract description 48
- 238000010079 rubber tapping Methods 0.000 claims abstract description 38
- 239000010949 copper Substances 0.000 claims abstract description 35
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052802 copper Inorganic materials 0.000 claims abstract description 28
- 239000002826 coolant Substances 0.000 claims description 15
- 239000011819 refractory material Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 5
- 229910001338 liquidmetal Inorganic materials 0.000 claims description 3
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 229910000805 Pig iron Inorganic materials 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/14—Charging or discharging liquid or molten material
- F27D3/145—Runners therefor
Definitions
- the present invention relates to a tapping gutter for a shaft furnace, in particular for a blast furnace for the production of pig iron, consisting of a Trough with a refractory lining that carries the liquid metal or the slag.
- a tapping trough for a shaft furnace that consists of a trough with a refractory
- the liquid metal leading lining is made within the refractory lining hollow cooling elements with connecting pipes for the inflow and outflow of Provide cooling water.
- These cooling elements are in turn limited by plates. Other copper plates run parallel to these plates, but they are not connected stand with the cooling element.
- These cooling elements are around coils of heat-resistant steel, which in a known manner with anchors are fixed in the wear lining of the tapping trough. It is also known to be welded To provide copper profiles as cooling elements for tapping troughs.
- staves As is known, two systems are used for wall cooling in the blast furnace Commitment. These are on the one hand cooling boxes, on the other hand plate-shaped cooling elements, so-called staves. There are cooling plate systems made from copper plates as well Plate cooler made of cast iron. Staves cool the entire blast furnace shell and require little entry. Gray cast iron staves are usually cooling elements, be poured into the cooling pipes.
- Copper staves have been known for blast furnace cooling for more than 15 years.
- Rolled copper slabs were chosen as the starting material.
- the Cooling element was made by drilling the cooling channels, welding thick-walled Copper pipes for the water supply through the blast furnace and suitable mechanical processing of the Stave surface.
- Copper staves are usually 150mm thick and allow for a given thickness of Masonry an increase in volume of the blast furnace of 3 to 5%.
- copper staves are combined with refractory bricks during their installation.
- a known example of copper staves is shown in DE 29 07 511 C2.
- the refractory lining of the tapping gutter has at least one plate-shaped cooling element made of copper or a copper alloy (copper stave) with inside arranged coolant channels is provided. It will use the already known copper cooling plates during cooling of the blast furnace shell, i.e. Copper staves, proposed for cooling troughs. Beneficial Embodiments of the invention are disclosed in the subclaims.
- the optimal cooling effect due to the copper staves increases the service life the refractory material of a tapping channel (or pool channel) increases and the signs of wear reduced. It will increase the durability of the refractory material achieved and thus a saving of refractory material costs. The amount of costly refractory material can also be due to the cooling effect be made smaller. The cooling determines wear Decarburization and oxidation phenomena in the refractory material prevented.
- the copper stave is preferably on its side facing the melt or slag Partly provided with fireproof material.
- the copper stave is preferably on its side facing the melt or slag Partly provided with fireproof material.
- the copper stave is preferably cast or rolled or forged.
- the cooling channels are either through cast pipes formed or poured directly.
- a particularly preferred embodiment of a copper stave is made of one forged or rolled ingot, with the cooling channels vertical running blind holes.
- the tapping channel preferably consists of a trough, this trough consisting of Metal existing outer side walls, one adjoining them on the inside Permanent lining and an inner wear lining made of refractory material.
- the arrangement of the copper staves is basically arbitrary and due to thermal To determine calculations.
- a semi-ring-shaped arrangement is favorable the copper staves around the tapping gutter, either in the area of the wear lining or between wear and permanent feed.
- the copper staves In order to create the coolant flow, the copper staves have connecting pipelines for the coolant supply and discharge. It can be one or more Cooling circuits may be provided; in the smallest unit, each has a plate shape Cooling element a separate circuit. Depending on the selection, the coolant is water, Oil, air or steam.
- the tapping channel 1 shown in Figure 1 consists essentially of a metallic Trough 2 (see in particular Figures 2 and 3), which is of a support structure 3 is surrounded.
- a layer of two plate-shaped arranged one behind the other Cooling elements 5 are provided.
- These plate-shaped cooling elements act it is Cu staves made of solid Cu bodies with blind holes Cooling channels 6.
- Each of the Cu staves is triangular on both sides End piece 7a, 7b extended.
- the triangular end pieces 7a, 7b are there formed so that the edges of two end pieces meet diagonally.
- FIG. 2 shows the cross section of the tapping channel according to FIG. 1 in its inlet area.
- the metallic trough 2 which is surrounded by the support structure 3, is with a permanent lining 9 made of refractory material and with an adjoining one Wear lining 10 lined.
- the along the longitudinal axis of the launder arranged Cu staves 5 are arranged approximately at the level of the tapping channel 4. It is because of the triangular end pieces in height to each other staggered pipe socket 8a, 8b for the inflow and outflow of the coolant recognizable.
- the Cu staves point to the tapping channel and thus the Melt or slag facing side horizontally extending grooves 11, fireproof material is worked into the spaces between them.
- FIG. 3 shows the cross section of a second embodiment of a tapping trough shown.
- the height of the cross section corresponds approximately to the cut III-III.
- the Cu staves are over the inlet area of the Tapping gutter also arranged along the long side within the permanent lining (not shown in Figure 1).
- the tapping channel also differs 3 with regard to the formation of the metallic trough 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General 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)
Abstract
Description
- Figur 1
- die Seitenansicht einer ersten Ausführungsform einer Abstichrinne mit innerhalb des Dauerfutters eingebrachten Cu-Staves;
- Figur 2
- den Querschnitt II-II der Abstichrinne nach Figur 1;
- Figur 3
- den Querschnitt einer zweiten Ausführungsform einer Abstichrinne.
Claims (11)
- Abstichrinne für einen Schachtofen, insbesondere für einen Hochofen zur Erzeugung von Roheisen, bestehend aus einem Trog mit einer feuerfesten, das flüssige Metall bzw. die Schlacke führenden Auskleidung,
dadurch gekennzeichnet,
daß innerhalb der feuerfesten oder angrenzend an die feuerfeste Auskleidung mindestens ein plattenförmiges Kühlelement (5) aus Kupfer oder einer Kupferlegierung (Kupfer-Stave) mit in seinem Innern angeordneten Kühlmittelkanälen (6) vorgesehen ist. - Abstichrinne nach Anspruch 1,
dadurch gekennzeichnet,
daß das plattenförmige Kühlelement auf der der Schmelze bzw. Schlacke zugewandten Seite zum Teil mit feuerfestem Material versehen ist. - Abstichrinne nach den Ansprüchen 1 und 2,
dadurch gekennzeichnet,
daß das plattenförmige Kühlelement (6) gegossen oder gewalzt bzw. geschmiedet ist. - Abstichrinne nach den Ansprüchen 1 bis 3,
dadurch gekennzeichnet,
daß bei der gegossenen Platte die Kühlkanäle entweder durch eingegossene Rohre gebildet sind oder direkt eingegossen sind. - Abstichrinne nach den Anspruch 1 bis 4,
dadurch gekennzeichnet,
daß das plattenförmige Kühlelement aus einem geschmiedeten bzw. gewalzten Rohblock gefertigt ist und die Kühlkanäle vertikal verlaufende Sackbohrungen sind. - Abstichrinne nach den Ansprüchen 1 bis 5,
dadurch gekennzeichnet,
daß die dem Schmelze- bzw. Schlackenfluß zugekehrte Seite des plattenförmigen Kühlelementes eingearbeitete horizontal verlaufende Nuten (11) zur Aufnahme von feuerfestem Material aufweist. - Abstichrinne nach den Ansprüchen 1 bis 6,
dadurch gekennzeichnet,
daß der Trog (2) aus Metall bestehende, äußere Seitenwände, ein sich daran anschließendes Dauerfutter (9) und ein inneres Verschleißfutter (10) aufweist und wobei die plattenförmigen Kühlelemente halbringförmig zwischen Dauerfutter und Verschleißfutter bzw. innerhalb des Verschleißfutters angeordnet sind. - Abstichrinne nach den Ansprüchen 1 bis 7,
dadurch gekennzeichnet,
daß die plattenförmigen Kühlelemente oder Einheiten aus mehreren plattenförmigen Kühlelementen Anschlußrohrleitungen (8a, 8b) für die Kühlmittelzu- und abfuhr aufweisen. - Abtichrinne nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß der metallische Trog (2) mit dem Dauerfutter (9) und sich daran anschließenden Verschleißfutter (10) ausgekleidet ist, wobei in das Verschleißfutter (10) der Kanal (4) für die abgestochene Schmelze eingearbeitet ist, und daß eine Mehrzahl von plattenförmigen Kühlelementen (5) mit längs der Abstichrinne verlaufenden Kühlmittelkanälen (6) nebeneinander einlagig in Höhe des Abstichkanals (4) innerhalb des Dauerfutters (9) angeordnet ist. - Abstichrinne nach Anspruch 9,
dadurch gekennzeichnet,
daß jedes plattenförmige Kühlelement (5) der Kühlelementlage an seinen beiden Enden mit dreieckfömigen Endstücken (7a, 7b) verlängert ist, die jeweils komplementär zueinander ausgebildet sind, so daß zwei benachbarte Kühlplatten mit diagonal verlaufenden Kanten aneinanderstoßen und daß im Schwerpunktbereich der dreieckförmigen Endstücke (7a, 7b) jeweils die Anschlußrohrleitungen (8a, 8b) für die Kühlmittelzu- oder -abfuhr vorgesehen sind, die mit einem Sammelkanal zur Speisung der Kühlmittelkanäle bzw. zur Abfuhr des Kühlmittels verbunden sind. - Verwendung mindestens eines plattenförmigen Kühlelementes aus Kupfer (Kupfer-Stave) nach einem der Ansprüche 1 bis 10 zur Kühlung einer Abstichrinne, insbesondere für Schachtöfen.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19911639 | 1999-03-16 | ||
DE19911639 | 1999-03-16 | ||
DE10009193A DE10009193A1 (de) | 1999-03-16 | 2000-02-26 | Abstichrinne für einen Schachtofen |
DE10009193 | 2000-02-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1036848A1 true EP1036848A1 (de) | 2000-09-20 |
EP1036848B1 EP1036848B1 (de) | 2005-01-26 |
Family
ID=26004539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00105167A Expired - Lifetime EP1036848B1 (de) | 1999-03-16 | 2000-03-11 | Abstichrinne für einen Schachtofen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1036848B1 (de) |
AT (1) | ATE287970T1 (de) |
ES (1) | ES2234467T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102827979A (zh) * | 2012-09-25 | 2012-12-19 | 莱芜钢铁集团有限公司 | 一种高炉渣沟及其密封结构 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4177974A (en) * | 1977-08-17 | 1979-12-11 | Nippon Kokan Kabushiki Kaisha | Molten slag runner for blast-furnace plant |
DE3101788A1 (de) * | 1980-02-19 | 1982-01-07 | VEB Bandstahlkombinat Hermann Matern, DDR 1220 Eisenhüttenstadt | Rinne, vorzugsweise schlackenrinne fuer hochoefen |
US4382585A (en) * | 1979-02-26 | 1983-05-10 | Kabel-u. Metallwerke Gutehoffnungshutte AG | Cooling plate for furnaces |
EP0143971A1 (de) * | 1983-10-28 | 1985-06-12 | Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH | Abstichrinne für einen Schachtofen |
WO1999036580A1 (de) * | 1998-01-15 | 1999-07-22 | Paul Wurth S.A. | Abstichrinne für eine eisenschmelze |
-
2000
- 2000-03-11 ES ES00105167T patent/ES2234467T3/es not_active Expired - Lifetime
- 2000-03-11 AT AT00105167T patent/ATE287970T1/de not_active IP Right Cessation
- 2000-03-11 EP EP00105167A patent/EP1036848B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4177974A (en) * | 1977-08-17 | 1979-12-11 | Nippon Kokan Kabushiki Kaisha | Molten slag runner for blast-furnace plant |
US4382585A (en) * | 1979-02-26 | 1983-05-10 | Kabel-u. Metallwerke Gutehoffnungshutte AG | Cooling plate for furnaces |
DE3101788A1 (de) * | 1980-02-19 | 1982-01-07 | VEB Bandstahlkombinat Hermann Matern, DDR 1220 Eisenhüttenstadt | Rinne, vorzugsweise schlackenrinne fuer hochoefen |
EP0143971A1 (de) * | 1983-10-28 | 1985-06-12 | Betriebsforschungsinstitut VDEh Institut für angewandte Forschung GmbH | Abstichrinne für einen Schachtofen |
WO1999036580A1 (de) * | 1998-01-15 | 1999-07-22 | Paul Wurth S.A. | Abstichrinne für eine eisenschmelze |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102827979A (zh) * | 2012-09-25 | 2012-12-19 | 莱芜钢铁集团有限公司 | 一种高炉渣沟及其密封结构 |
Also Published As
Publication number | Publication date |
---|---|
EP1036848B1 (de) | 2005-01-26 |
ES2234467T3 (es) | 2005-07-01 |
ATE287970T1 (de) | 2005-02-15 |
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