EP1036848B1 - Rigole de coulée pour un four à cuve - Google Patents

Rigole de coulée pour un four à cuve Download PDF

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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
Application number
EP00105167A
Other languages
German (de)
English (en)
Other versions
EP1036848A1 (fr
Inventor
Werner Otremba
Peter Dr. Rüther
Helmut Ellerik
Wolfgang Kowalski
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.)
Paul Wurth Sa En Thyssenkrupp Stahl AG
Original Assignee
ThyssenKrupp Stahl AG
SMS Demag AG
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
Priority claimed from DE10009193A external-priority patent/DE10009193A1/de
Application filed by ThyssenKrupp Stahl AG, SMS Demag AG filed Critical ThyssenKrupp Stahl AG
Publication of EP1036848A1 publication Critical patent/EP1036848A1/fr
Application granted granted Critical
Publication of EP1036848B1 publication Critical patent/EP1036848B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (9)

  1. Rigole de coulée pour un four à cuve, en particulier pour un haut-fourneau pour la production de fonte brute, constituée par un bac (2) avec un revêtement réfractaire, guidant le métal liquide ou les scories et au moins un élément de refroidissement (5) en forme de plaque en cuivre ou en un alliage de cuivre (plaque de refroidissement en cuivre) avec des canaux (6) pour agent de refroidissement disposés en son intérieur, caractérisée en ce que le bac (2) présente des parois latérales extérieures métalliques, auxquelles se raccorde un garnissage permanent (9) et un garnissage d'usure (10) interne et les éléments de refroidissement en forme de plaque étant disposés en forme de demi-cercle entre le garnissage permanent (9) et le garnissage d'usure (10) ou dans le garnissage d'usure (10).
  2. Rigole de coulée selon la revendication 1, caractérisée en ce que chaque élément de refroidissement (5) en forme de plaque de la couche d'éléments de refroidissement est prolongé en ses deux extrémités par des pièces terminales (7a, 7b) triangulaires, qui ont à chaque fois une forme complémentaire l'une par rapport à l'autre, de telle manière que deux plaques de refroidissement adjacentes se touchent avec des bords en diagonale et en ce qu'au centre de gravité des pièces terminales (7a, 7b) triangulaires, on a prévu à chaque fois les tubulures de raccordement (8a, 8b) pour l'alimentation ou l'évacuation de l'agent de refroidissement, qui sont reliées avec un canal collecteur pour l'alimentation des canaux d'agent de refroidissement ou pour l'évacuation de l'agent de refroidissement.
  3. Rigole de coulée selon la revendication 1 ou 2, caractérisée en ce que l'élément refroidisseur en forme de plaque (5) est pourvu en partie de matériau réfractaire sur le côté orienté vers la masse fondue ou les scories.
  4. Rigole de coulée selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'élément de refroidissement (5) en forme de plaque est coulé, laminé ou forgé.
  5. Rigole de coulée selon la revendication 4, caractérisée en ce que dans le cas d'un élément de refroidissement (5) en forme de plaqué, coulé, les canaux de refroidissement (6) sont formés par des tuyaux coulés dans l'élément ou sont coulés directement.
  6. Rigole de coulée selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'élément de refroidissement (5) en forme de plaque est réalisé à partir d'une ébauche forgée ou laminée et les canaux de refroidissement (6) sont des trous à poche verticaux.
  7. Rigole de coulée selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le côté de l'élément de refroidissement (5) en forme de plaque, orienté vers le flux de masse fondue ou de scories présente des rainures (11) usinées horizontales destinées à recevoir le matériau réfractaire.
  8. Rigole de coulée selon l'une quelconque des revendications 1 à 7, caractérisée en ce que les éléments de refroidissement (5) en forme de plaque ou des unités de plusieurs éléments de refroidissement (5) en forme de plaque présentent des tubulures de raccordement (8a, 8b) pour l'alimentation et l'évacuation de l'agent de refroidissement.
  9. Rigole de coulée selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le bac (2) métallique est revêtu par un garnissage permanent (9) et un garnissage d'usure (10) qui s'y raccorde, le canal (4) pour la masse fondue percée étant usiné dans garnissage d'usure (10) et une multitude d'éléments de refroidissement (5) en forme de plaque avec des canaux (6) à agent de refroidissement s'étendant le long de la rigole de coulée sont disposés les uns à côté des autres en une couche à hauteur de la rigole de coulée (4) dans le garnissage permanent (9).
EP00105167A 1999-03-16 2000-03-11 Rigole de coulée pour un four à cuve Expired - Lifetime EP1036848B1 (fr)

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 (fr) 2000-09-20
EP1036848B1 true EP1036848B1 (fr) 2005-01-26

Family

ID=26004539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105167A Expired - Lifetime EP1036848B1 (fr) 1999-03-16 2000-03-11 Rigole de coulée pour un four à cuve

Country Status (3)

Country Link
EP (1) EP1036848B1 (fr)
AT (1) ATE287970T1 (fr)
ES (1) ES2234467T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES2234467T3 (es) 2005-07-01
EP1036848A1 (fr) 2000-09-20
ATE287970T1 (de) 2005-02-15

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