EP1036848B1 - Abstichrinne für einen Schachtofen - Google Patents
Abstichrinne für einen Schachtofen Download PDFInfo
- Publication number
- EP1036848B1 EP1036848B1 EP00105167A EP00105167A EP1036848B1 EP 1036848 B1 EP1036848 B1 EP 1036848B1 EP 00105167 A EP00105167 A EP 00105167A EP 00105167 A EP00105167 A EP 00105167A EP 1036848 B1 EP1036848 B1 EP 1036848B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- shaped cooling
- runner
- lining
- cooling element
- 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 - Lifetime
Links
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 channel for a shaft furnace, in particular for a blast furnace for the production of pig iron, consisting of a Trough with a refractory, the liquid metal or the slag leading liner and at least one plate-shaped cooling element made of copper or a Copper alloy (copper stave) with coolant channels arranged in its interior.
- the Liquid metal leading liner exists 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. Parallel to these plates are more copper plates, but not in connection stand with the cooling element.
- These cooling elements are To coils of heat-resistant steel, in a conventional manner with anchors are fixed in the wear chuck of the tapping chute. It is still known welded To provide copper profiles as cooling elements for taps.
- staves When cooling the wall in the blast furnace, it is well known that two systems are used Commitment. These are on the one hand cooling boxes, on the other plate-shaped cooling elements, so-called staves. There are cooling plate systems made of copper plates as well Plate cooler made of nodular cast iron. Staves cool areal the entire blast furnace tank and require little passage. Gray cast staves are usually cooling elements, be poured into the cooling pipes.
- Copper staves have been known for more than 15 years for the cooling of blast furnaces. As starting material, rolled copper slabs were selected. The Cooling element was set by drilling the cooling channels, welding thick-walled Copper pipes for the supply of water through the blast furnace tank and a suitable mechanical machining of the stave surface ago. Copper staves are usually 150mm thick and allow for given thickness of the Masonry an increase in volume of the blast furnace from 3 to 5%. Usually Copper staves are combined with refractory bricks when installed. A well-known example of copper staves is shown in DE 29 07 511 C2
- the trough be made of metal outer side walls, a subsequent permanent feed and an inner wear lining and wherein the plate-shaped cooling elements semi-annular between permanent feed and wear lining or within the wear lining are arranged.
- the service life is reduced of the refractory material of a tapping channel (or pool trough) 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. Also, due to the cooling effect, the amount of costly refractory material be downsized. Cooling causes wear Decarburization and oxidation phenomena prevented in the refractory material.
- the copper stave is facing the melt or slag on it Side partially provided with refractory material.
- This can be, for example be achieved by the the melt or Schlackenfluß facing side of the copper staves incorporated horizontally extending grooves having refractory material.
- the copper stave is preferably cast or rolled or forged.
- the cooling channels are either through cast-in tubes formed or poured directly.
- a particularly preferred embodiment of a copper stave is made of a Forged or rolled ingot manufactured, with the cooling channels vertically are running blind holes.
- the copper staves have connecting pipes for the coolant supply and discharge. It can be one or more Be provided cooling circuits; at the smallest unit has each plate-shaped Cooling element a separate circuit.
- the coolant is water depending on your choice, 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 of a support structure 3 is surrounded.
- a metallic Trough 2 see in particular Figures 2 and 3
- a support structure 3 is surrounded.
- To cool the inlet area of the tapping chute are along the longitudinal axis of the tapping channel 1 approximately at the level of the tapping channel 4 each side a position of two successively arranged plate-shaped Cooling elements 5 are provided.
- plate-shaped cooling elements are Cu staloms made of solid Cu bodies introduced by blind holes Cooling channels 6.
- Each of the Cu staves is triangular in shape on both sides End piece 7a, 7b extended.
- the triangular end pieces 7a, 7b are there formed at such that the edges of two end pieces abut diagonally.
- FIG. 2 shows the cross section of the tapping spout according to FIG. 1 in its inlet region.
- 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 Wear lining 10 lined.
- the along the longitudinal axis of the tapping channel arranged Cu staves 5 are arranged approximately at the level of the tapping channel 4. These are because of the triangular end pieces in height to each other staggered pipe socket 8a, 8b to the inlet and outlet of the coolant recognizable.
- the Cu staves point to the tapping channel and thus the Melt or slag facing side horizontally extending grooves 11, in the interstices refractory material is incorporated.
- the cross section of a second embodiment of a tapping channel shown.
- the height of the cross section is approximately equal to the section III-III.
- the Cu staves over the inlet region of Tapping trough arranged along the longitudinal side within the Treasurefutters (not shown in Figure 1).
- the trough is different according to the embodiment 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)
- Blast Furnaces (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
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 (9)
- Abstichrinne für einen Schachtofen, insbesondere für einen Hochofen zur Erzeugung von Roheisen, bestehend aus einem Trog (2) mit einer feuerfesten, das flüssige Metall bzw. die Schlacke führenden Auskleidung und mindestens einem plattenförmigen Kühlelement (5) aus Kupfer oder einer Kupferlegierung ( Kupfer-Stave ) mit in seinem Inneren angeordneten Kühlmittelkanälen (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 (9) und Verschleißfutter (10) bzw. innerhalb des Verschleißfutters (10) angeordnet sind. - Abstichrinne nach Anspruch 1,
dadurch gekennzeichnet, dass jedes plattenförmige Kühlelement (5) der Kühlelementlage an seinen beiden Enden mit dreieckförmigen 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. - Abstichrinne nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass das plattenförmige Kühlelement (5) auf der der Schmelze bzw. Schlacke zugewandten Seite zum Teil mit feuerfestem Material versehen ist. - Abstichrinne nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das plattenförmige Kühlelement (5) gegossen oder gewalzt bzw. geschmiedet ist. - Abstichrinnne nach Anspruch 4,
dadurch gekennzeichnet, dass bei dem gegossenen, plattenförmigen Kühlelement (5) die Kühlkanäle (6) entweder durch eingegossene Rohre gebildet sind oder direkt eingegossen sind. - Abstichrinne nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass das plattenförmige Kühlelement (5) aus einem geschmiedeten bzw. gewalzten Rohblock gefertigt ist und die Kühlkanäle (6) vertikal verlaufende Sackbohrungen sind. - Abstichrinne nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die dem Schmelze- bzw. Schlackenfluß zugekehrte Seite des plattenförmigen Kühlelementes (5) eingearbeitete horizontal verlaufende Nuten (11) zur Aufnahme des feuerfesten Materials aufweist. - Abstichrinne nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die plattenförmigen Kühlelemente (5) oder Einheiten aus mehreren plattenförmigen Kühlelementen (5) Anschlussrohrleitungen (8a, 8b) für die Kühlmittelzu- und abfuhr aufweisen. - Abstichrinne nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass der metallische Trog (2) mit einem Dauerfutter (9) und sich daran anschließendem Verschleißfutter (19) 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.
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 EP1036848A1 (de) | 2000-09-20 |
EP1036848B1 true 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) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102827979B (zh) * | 2012-09-25 | 2014-07-09 | 莱芜钢铁集团有限公司 | 一种高炉渣沟及其密封结构 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5432193A (en) * | 1977-08-17 | 1979-03-09 | Nippon Kokan Kk <Nkk> | Molten slag runner for production of hard granulated slag |
DE2907511C2 (de) * | 1979-02-26 | 1986-03-20 | Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover | Kühlplatte für Schachtöfen, insbesondere Hochöfen, und Verfahren zur Herstellung derselben |
DD153496A3 (de) * | 1980-02-19 | 1982-01-13 | Eckhard Schulze | Rinne,vorzugsweise schlackenrinne fuer hochoefen |
DE3339135A1 (de) * | 1983-10-28 | 1985-05-09 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Abstichrinne fuer einen schachtofen |
LU90195B1 (de) * | 1998-01-15 | 1999-07-16 | Wurth Paul Sa | Abstichrinne fuer eine Eisenschmelze |
-
2000
- 2000-03-11 EP EP00105167A patent/EP1036848B1/de not_active Expired - Lifetime
- 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
Also Published As
Publication number | Publication date |
---|---|
ATE287970T1 (de) | 2005-02-15 |
ES2234467T3 (es) | 2005-07-01 |
EP1036848A1 (de) | 2000-09-20 |
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