EP0279165A1 - Appareil pour le remplacement des chenaux de coulée de fours à cuve - Google Patents
Appareil pour le remplacement des chenaux de coulée de fours à cuve Download PDFInfo
- Publication number
- EP0279165A1 EP0279165A1 EP88100101A EP88100101A EP0279165A1 EP 0279165 A1 EP0279165 A1 EP 0279165A1 EP 88100101 A EP88100101 A EP 88100101A EP 88100101 A EP88100101 A EP 88100101A EP 0279165 A1 EP0279165 A1 EP 0279165A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tapping
- tension elements
- elements
- channel
- platform
- 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
Images
Classifications
-
- 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
Definitions
- the invention relates to a device for replacing tapping troughs in shaft furnaces.
- Pig iron and slag are tapped from a blast furnace at regular intervals. Depending on the amount of pig iron produced, there are eight to twelve taps within 24 hours. During the tapping process, pig iron and slag are separated from one another in a so-called main tapping channel. Such main tapping channels on large blast furnaces have recently been carried out with large cross sections. The main tapping trough is usually followed by other tapping troughs and tipping troughs for pig iron (up to delivery in pans or torpedo cars) and slag. While the slag is being removed from the main tapping channel, the pig iron remains in this channel between tapping.
- blast furnaces that have only one tap hole.
- Such blast furnaces must be throttled for the time of repair or relining of the fireproof tapping lining, or the blast furnace must be shut down for long periods of work.
- Also known is a device for changing the main tapping channel of a blast furnace (DE patent application P 36 24 266.7), in which at least four lifting elements are arranged in a stationary or non-stationary manner in front of the tapping hole of the blast furnace on the hut floor, which act on trusses on which the main tapping channel rests, the groove to be replaced on a the hut corridor located, in particular rail-bound, means of transport can be lowered and the newly delivered channel can be raised to the level of the casting platform by the means of transport, and that the main tapping channel is held with the crossbeams by means of pneumatically operated holding arms arranged on the steel structure of the casting platform.
- the object of the invention is to provide a replacement device for tapping troughs in shaft furnaces, the installation of which does not require expensive earthwork and foundation work and which can also be erected subsequently in existing metallurgical plants.
- a replacement device should be designed so that it is also portable, so that only one device for replacing tapping troughs has to be purchased in a metallurgical plant with several furnaces, especially since the times of use of the changing device can be easily coordinated.
- Tapping troughs on shaft furnaces have a high weight, for example more than 100 t including the refractory lining.
- the required lifting height from the hut floor to the racking platform is over 4 m. Raising and lowering the tapping trough for repair purposes places considerable demands on the traction mechanism.
- the replacement device according to the invention has a number of advantages over the prior art: in comparison to the use of pressure elements of the prior art for lifting and lowering, in which there is a risk of kinking, the tension elements according to the invention ensure an absolutely secure position of the tapping trough during the entire movement sequence, - the tension elements are lighter and cheaper than pressure elements with the same payload, - there are no additional guide rails that are required for pressure elements, - no costs for complex earthworks, foundations and drainage, - The weight of the tension elements is so low in relation to the weight of the tapping trough that no noteworthy reinforcements of the support beams on the tapping platform are necessary, - Because of its low weight, the replacement device can be used as a transportable device on several shaft furnaces, the repaired tapping channel does not have to be exactly below the installation position before striking the pulling elements, thereby saving installation time, - In the event of any malfunctions in the traction elements during a lifting process, these are safely accessible because they are above the load.
- the tapping channel (4) is located on the transport means (1) which can be moved on rails in the hut hallway (2). Traverses (10), which are arranged under the tapping channel (4), can be seen between the tapping channel and the transport platform. Stranded ropes or climbing bars (6) of the tension elements (5) are attached to the crossbeams (10).
- the tension elements (5) are arranged on support beams (7) welded to the tapping platform (3) of the shaft furnace.
- the tension elements are supplied by a hydraulic pump unit (not shown here).
- FIG. 2 shows, in contrast to FIG. 1, tension elements (5) which are arranged on the crossbeams (10) of the tapping channel (4).
- the device works in reverse, i.e. the traction elements (5) pull up or down with the tapping channel (4) to the tapping platform (3).
- a known strand or rod conveying system in which loads are moved with the aid of electrohydraulically driven lifters, is suitable for the replacement device according to the invention.
- FIG. 3 and 4 show an embodiment in which the tension elements (5) and the hydraulic pump unit (8) are arranged on a transportable platform (9).
- the hydraulic hoses for connecting the pump set and tension elements have not been shown.
- This platform can be made in one or more parts and stands with its feet on the gutter support beams (7) of the racking platform (3).
- the tapping channel (4) is detachably attached to the rods or strands (6) of the tension elements (5) by means of a shackle connection (12), which is only indicated.
- the tapping channel (4) is raised to the level of the tapping platform (3), the tapping channel (4) is supported with the aid of retractable and retractable supports (11) arranged laterally under the tapping platform.
- the supports (11) are pushed through corresponding openings in the channel support supports (7).
- the platform (9) with the tension elements (5) can be removed by a crane.
- hydraulic pump unit (8) can also be set up (not shown), for example on the side of the tapping platform (3), in which case hose connections to the traction elements (5) must exist.
- Fig. 5 shows a tapping channel (4) hanging on rods or stranded cables (6).
- the tension elements (5) are mounted here on the platform of a slewing ring (13) which runs on rails which are located on the platform (9).
- the slewing ring (13) can be moved through 360 ° in the horizontal.
- Fig. 6 is to show that it is possible with the help of the slewing ring (13), the tapping groove (4) hanging on the tension elements (5), deviating from the position assumed on the tapping platform (3), during the lowering to a different angular position bring.
- the rails for the means of transport are e.g. arranged at right angles to the position of the gutter from the tapping platform.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88100101T ATE55154T1 (de) | 1987-02-18 | 1988-01-07 | Vorrichtung zum auswechseln von abstichrinnen an schachtoefen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3705099 | 1987-02-18 | ||
DE19873705099 DE3705099A1 (de) | 1987-02-18 | 1987-02-18 | Vorrichtung zum auswechseln von abstichrinnen an schachtoefen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0279165A1 true EP0279165A1 (fr) | 1988-08-24 |
EP0279165B1 EP0279165B1 (fr) | 1990-08-01 |
Family
ID=6321229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88100101A Expired - Lifetime EP0279165B1 (fr) | 1987-02-18 | 1988-01-07 | Appareil pour le remplacement des chenaux de coulée de fours à cuve |
Country Status (7)
Country | Link |
---|---|
US (1) | US4828228A (fr) |
EP (1) | EP0279165B1 (fr) |
CN (1) | CN1017157B (fr) |
AT (1) | ATE55154T1 (fr) |
CA (1) | CA1332507C (fr) |
DE (2) | DE3705099A1 (fr) |
FI (1) | FI85505C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5673901A (en) * | 1995-08-31 | 1997-10-07 | Man Gutehoffnungshutte Aktiengesellschaft | Device for transporting molten metal in the pouring bay of a shaft furnace and process for operating this device |
LU91082B1 (fr) * | 2004-06-04 | 2005-12-05 | Wurth Paul Sa | Dispositif pour remplacer la rigole principale d'un haut fourneau. |
LU91135B1 (en) * | 2005-01-31 | 2006-08-01 | Wurth Paul Sa | A runner replacement device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU91134B1 (en) * | 2005-01-31 | 2006-08-01 | Wurth Paul Sa | Device for moving a runner |
CN105420434B (zh) * | 2015-11-17 | 2018-04-10 | 南京联合荣大工程材料有限责任公司 | 一种更换式高炉出铁沟 |
CA3054591A1 (fr) | 2017-03-31 | 2018-10-04 | Basf Se | Composes de pyrimidinium et melanges connexes pour la lutte contre les animaux nuisibles |
EP3766879A1 (fr) | 2019-07-19 | 2021-01-20 | Basf Se | Dérivés de pytazole pesticides |
EP4198023A1 (fr) | 2021-12-16 | 2023-06-21 | Basf Se | Composés de thiosemicarbazone actifs sur le plan pesticide |
WO2023203066A1 (fr) | 2022-04-21 | 2023-10-26 | Basf Se | Action synergique en tant qu'inhibiteurs de nitrification d'oligomères de dicyandiamide (dcd) avec l'alcoxypyrazole et ses oligomères |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010106A1 (fr) * | 1978-01-26 | 1980-04-30 | Nippon Crucible Co., Ltd. | Canaux de coulee pour materiaux en fusion |
DE3302154C1 (de) * | 1983-01-22 | 1984-05-10 | Mannesmann AG, 4000 Düsseldorf | Kipprinnenvorrichtung für Roheisen bzw. Schlacke, insbesondere für die Anordnung im Bereich von Hochöfen |
DE3624266A1 (de) * | 1986-07-18 | 1988-01-21 | Gutehoffnungshuette Man | Vorrichtung zum auswechseln von hauptabstichrinnen an hochoefen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1018217A (en) * | 1911-10-30 | 1912-02-20 | Paul Szathmary | Conveyer for molten metal. |
US1535731A (en) * | 1924-02-26 | 1925-04-28 | Frank B Mckune | Slag skimmer |
-
1987
- 1987-02-18 DE DE19873705099 patent/DE3705099A1/de not_active Withdrawn
-
1988
- 1988-01-07 AT AT88100101T patent/ATE55154T1/de not_active IP Right Cessation
- 1988-01-07 DE DE8888100101T patent/DE3860370D1/de not_active Expired - Lifetime
- 1988-01-07 EP EP88100101A patent/EP0279165B1/fr not_active Expired - Lifetime
- 1988-02-03 FI FI880495A patent/FI85505C/fi not_active IP Right Cessation
- 1988-02-09 CN CN88100874A patent/CN1017157B/zh not_active Expired
- 1988-02-17 CA CA000559087A patent/CA1332507C/fr not_active Expired - Fee Related
- 1988-02-18 US US07/157,410 patent/US4828228A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0010106A1 (fr) * | 1978-01-26 | 1980-04-30 | Nippon Crucible Co., Ltd. | Canaux de coulee pour materiaux en fusion |
DE3302154C1 (de) * | 1983-01-22 | 1984-05-10 | Mannesmann AG, 4000 Düsseldorf | Kipprinnenvorrichtung für Roheisen bzw. Schlacke, insbesondere für die Anordnung im Bereich von Hochöfen |
DE3624266A1 (de) * | 1986-07-18 | 1988-01-21 | Gutehoffnungshuette Man | Vorrichtung zum auswechseln von hauptabstichrinnen an hochoefen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5673901A (en) * | 1995-08-31 | 1997-10-07 | Man Gutehoffnungshutte Aktiengesellschaft | Device for transporting molten metal in the pouring bay of a shaft furnace and process for operating this device |
LU91082B1 (fr) * | 2004-06-04 | 2005-12-05 | Wurth Paul Sa | Dispositif pour remplacer la rigole principale d'un haut fourneau. |
WO2005118888A1 (fr) * | 2004-06-04 | 2005-12-15 | Paul Wurth S.A. | Dispositif de manipulation permettant de remplacer un canal de coulee |
LU91135B1 (en) * | 2005-01-31 | 2006-08-01 | Wurth Paul Sa | A runner replacement device |
Also Published As
Publication number | Publication date |
---|---|
FI880495A (fi) | 1988-08-19 |
FI880495A0 (fi) | 1988-02-03 |
EP0279165B1 (fr) | 1990-08-01 |
CN1017157B (zh) | 1992-06-24 |
FI85505C (fi) | 1992-04-27 |
FI85505B (fi) | 1992-01-15 |
DE3860370D1 (de) | 1990-09-06 |
CN88100874A (zh) | 1988-08-31 |
US4828228A (en) | 1989-05-09 |
ATE55154T1 (de) | 1990-08-15 |
DE3705099A1 (de) | 1988-09-01 |
CA1332507C (fr) | 1994-10-18 |
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