CA2581978A1 - Metallurgical furnace - Google Patents
Metallurgical furnace Download PDFInfo
- Publication number
- CA2581978A1 CA2581978A1 CA002581978A CA2581978A CA2581978A1 CA 2581978 A1 CA2581978 A1 CA 2581978A1 CA 002581978 A CA002581978 A CA 002581978A CA 2581978 A CA2581978 A CA 2581978A CA 2581978 A1 CA2581978 A1 CA 2581978A1
- Authority
- CA
- Canada
- Prior art keywords
- furnace
- wall
- joints
- bottom part
- parts
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
-
- 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
- F27D1/0043—Floors, hearths
-
- 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
- F27D1/04—Casings; Linings; Walls; Roofs characterised by the form, e.g. shape of the bricks or blocks used
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention relates to the structure of the bottom area of a metallurgical furnace (1), comprising a bottom part (2) and a wall (3), both of which include a steel structure (6, 21) forming the external surface, and a refractory inner brick lining (12), the bottom part (2) and the wall (3) being joined together; the wall (3) of the furnace (1) is divided into a lower part (4) and an upper part (30), whereby the steel structure (21) of the lower part (4) is a separate ring consisting of parts (23), joints (19) being provided between the parts (23) and arranged to expand. The invention further relates to a method for controlling the expansion of the furnace (1).
Claims (11)
1. The structure of the bottom area of a metallurgical furnace (1), comprising a bottom part (2) and a wall (3), both comprising a steel structure (6, 21), which constitutes the external surface, and an inner refractory brick lining (12), the bottom part (2) and the wall (3) being joined to one another, characterized in that the wall (3) of the furnace (1) is divided into a lower part (4) and an upper part, whereby the steel structure (21) of the lower part (4) is a separate ring consisting of parts (23), joints (19) being provided between the parts (23) and arranged to expand.
2. A structure according to Claim 1, characterized in that the joints (19) of the parts (23) are flexible joints, such as friction joints, spring joints or the like.
3. A structure according to Claim 2, characterized in that there is a sliding joint (20) provided between the lower part (4) of the wall (3) and the upper part (30) of the wall (3).
4. A structure according to Claim 3, characterized in that cooling elements (22) are provided between the lower part (4) of the wall (3) and the inner brick lining for at least part of the way.
5. A structure according to any of Claims 1 to 4, characterized in that there is a false bottom (13) provided below the bottom part (2) of the furnace (1), between of which false bottom (13) and a steel bottom plate (7) of the furnace there is a channel system (14).
6. A furnace (1) according to Claim 5, characterized in that at least one blower is connected to the channel system (14).
7. A method for controlling the expansion of a metallurgical furnace (1), charac-terized in that the annular lower part (4) of the wall (3) is divided into parts (23)
8 in the circumferential direction of the furnace (1) and the annular lower part (4) is allowed to expand by means of the joints (19) between the parts (23), when the furnace (1) is heated.
8. A method according to Claim 7, characterized in that a channel system (14) is formed between the bottom part (2) of the furnace (1) and the false bottom (13), air being blown into the channel system by at least one blower for control-ling the temperature of the brick lining (12) of the bottom part (2).
8. A method according to Claim 7, characterized in that a channel system (14) is formed between the bottom part (2) of the furnace (1) and the false bottom (13), air being blown into the channel system by at least one blower for control-ling the temperature of the brick lining (12) of the bottom part (2).
9. A method according to Claim 8, characterized in that the temperature inside the innermost brick layer (8) of the bottom part (2) of the furnace (1) is prefera-bly lowered by means of cooling to a temperature, at which the particles of the melt that solidify at low temperatures solidify inside the innermost brick layer (8) of the bottom part (2).
10. A method according to Claim 9, characterized in that the temperature in-side the innermost brick layer (8) of the bottom part (2) of the furnace (1) is preferably lowered by means of cooling to about 650 to 800°C depending on the components of the molten material.
11. A method according to any of the preceding Claims 7 to 10, characterized in that the annular lower part (4) of the wall (3), which is integral with the bottom part (2) of the furnace (1), is joined to the cylindrical upper part (30) of the wall (3) of the furnace (1) by a sliding joint (20).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20041330A FI118437B (en) | 2004-10-14 | 2004-10-14 | Metallurgical oven |
| FI20041330 | 2004-10-14 | ||
| PCT/FI2005/000431 WO2006040393A1 (en) | 2004-10-14 | 2005-10-11 | Metallurgical furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2581978A1 true CA2581978A1 (en) | 2006-04-20 |
| CA2581978C CA2581978C (en) | 2013-09-10 |
Family
ID=33306027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2581978A Expired - Fee Related CA2581978C (en) | 2004-10-14 | 2005-10-11 | Metallurgical furnace |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN101040160B (en) |
| CA (1) | CA2581978C (en) |
| EA (1) | EA011183B1 (en) |
| FI (1) | FI118437B (en) |
| PE (1) | PE20060787A1 (en) |
| WO (1) | WO2006040393A1 (en) |
| ZA (1) | ZA200702958B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20146035A (en) | 2014-11-25 | 2016-05-26 | Outotec Finland Oy | METHOD FOR BUILDING A METALLURGICAL FURNACE, A METALLURGICAL FURNACE AND A VERTICAL HEATING ELEMENT |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2089026A (en) * | 1936-10-19 | 1937-08-03 | American Manganese Steel Co | Temperature compensated retort end |
| SU80503A1 (en) * | 1948-11-24 | 1948-11-30 | И.П. Ерохин | Method of compensation for temperature expansion of the open-hearth furnace masonry |
| US3876818A (en) * | 1973-08-13 | 1975-04-08 | Republic Steel Corp | Electric arc furnace wall including water cooled bezel ring |
| CA1040109A (en) * | 1973-10-15 | 1978-10-10 | Wallis Separators Limited | Filter screen with acoustic pressure wave transducer |
| SU939912A1 (en) * | 1977-08-17 | 1982-06-30 | Государственный Ордена Трудового Красного Знамени Всесоюзный Институт По Проектированию Предприятий Коксохимической Промышленности | Apparatus for reinforcing circular tunnel furnaces |
| US4428731A (en) * | 1982-03-31 | 1984-01-31 | Metallurgie Hoboken-Overpelt | Smelting furnace |
| IT1197142B (en) * | 1986-09-02 | 1988-11-25 | Snam Progetti | BASIN OVEN FOR METALLURGY OF NON-FERROUS METALS |
| DE19943287A1 (en) * | 1999-09-10 | 2001-03-15 | Sms Demag Ag | Copper cooling plate for metallurgical furnaces |
| FI107960B (en) * | 1999-09-13 | 2001-10-31 | Outokumpu Oy | Support for the oven |
-
2004
- 2004-10-14 FI FI20041330A patent/FI118437B/en not_active IP Right Cessation
-
2005
- 2005-10-11 CN CN2005800350095A patent/CN101040160B/en not_active Expired - Fee Related
- 2005-10-11 EA EA200700586A patent/EA011183B1/en not_active IP Right Cessation
- 2005-10-11 WO PCT/FI2005/000431 patent/WO2006040393A1/en active Application Filing
- 2005-10-11 CA CA2581978A patent/CA2581978C/en not_active Expired - Fee Related
- 2005-10-12 PE PE2005001203A patent/PE20060787A1/en not_active Application Discontinuation
-
2007
- 2007-04-11 ZA ZA200702958A patent/ZA200702958B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN101040160B (en) | 2010-05-26 |
| ZA200702958B (en) | 2008-08-27 |
| EA011183B1 (en) | 2009-02-27 |
| CA2581978C (en) | 2013-09-10 |
| WO2006040393A1 (en) | 2006-04-20 |
| FI20041330A0 (en) | 2004-10-14 |
| FI20041330A (en) | 2006-04-15 |
| EA200700586A1 (en) | 2007-10-26 |
| CN101040160A (en) | 2007-09-19 |
| FI118437B (en) | 2007-11-15 |
| PE20060787A1 (en) | 2006-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20211012 |