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Conferences / trade shows
October 21-24, 2008
ABM’s 45th Rolling Seminar, Ipojuca, Brazil
ABM's web site
October 22-24, 2008
Metal Forum, Kiev, Ukraine
Metal Forum home page
October 26-29, 2008
Galvanizers Association 100th Conference, Baltimore (MD), USA
Galvanizers Association home page
November 11-14, 2008
Metal Expo, Moscow, Russia
Metal Expo home page
November 13-14, 2008
STAHL 2008, Duesseldorf, Germany
STAHL 2008 home page
December 11-12, 2008
ATS/JSI 2008 International Steelmaking Conference, Paris, France
ATS/JSI 2008 web site
Press releases
Dongbei orders world's first REBOX® DST for stainless steel wire annealing
Dongbei press release (PDF 78 KB)
Excellent results from flameless oxyfuel reheating at ArcelorMittal Shelby
AM Shelby (PDF 72 KB)
Turnkey flameless oxyfuel rotary hearth furnace to Ovako, 3rd at same site
Ovako RHF (PDF 61 KB)
Linde has been awarded a second contract at ASCOMETAL
More hot rolling capacity with REBOX® oxyfuel at ASCOMETAL, Les Dunes (France).
French special long steel products producer ASCOMETAL, member of Severstal group, has awarded Linde a second contract for REBOX® oxyfuel solutions in reheating. Four pit furnaces at ASCOMETAL, Les Dunes, will in a performance guarantee contract, during 2007-8 be converted into full oxyfuel operation to boost the rolling mill capacity and reduce fuel consumption while also reducing emissions of CO2 and NOx.
Jean-Pierre Riegert, head of Technologies and Development at ASCOMETAL, concludes: “REBOX® oxyfuel solutions will be implemented at Les Dunes, after its success in improving our utilization of existing equipment in the Fos-sur-Mer plant, achieving 33% shorter heating time and 40% lower fuel consumption with reduced emissions.”
Linde has since 1990 installed over 110 REBOX® oxyfuel solutions in reheating and annealing applications, both batch and continuous type furnaces.
Oxyfuel brings 30% capacity increase at ThyssenKrupp Steel
ThyssenKrupp Steel AG, TKS in Finnentrop, Germany produces galvanized strip for use in the automotive, white goods and for the construction industry. Linde installed the REBOX® oxyfuel solutions in the existing galvanizing line, which resulted in a production increase of 30%, from 82 to 105 tons per hour. Since oxyfuel not only effectively heats, contributing to a reduction of fuel consumption, it also cleans, thus eliminated the need for the pre-cleaning section.
Direct Flame Impingement (DFI) oxyfuel, where the oxyfuel flames are fired directly onto the moving metal was the chosen REBOX® solution. This drastically increasing the heat transfer for more throughput without extending the furnace or line. Three meters of the recuperative zone were refitted with a compact 5 MW DFI oxyfuel unit consisting of four burner row sets.
Fuel consumption was reduced by 6 percent and annealing properties over the entire strip width were improved. The strip surface was effectively cleaned from unwanted contaminants such as oil and residues, making it possible to remove a 25 meter strip pre-cleaning section.
By August 2006, Ovako will have REBOX® oxyfuel solutions for reheating in all 48 pit furnaces.
Oxyfuel in all pit reheat furnaces at Ovako, Sweden.
REBOX® for more furnace throughput with reduced fuel consumption and less emissions.
Ovako, Hofors works, Sweden have ordered an additional 8 REBOX® oxyfuel solutions for reheating from Linde. Since 1994, Ovako have implemented oxyfuel for increased throughput capacity for more flexibility, reduced fuel consumption and lower emissions of CO2 and NOx.
Since August 2006, the remaining soaking pit furnaces has converted to oxyfuel for a total of 48 pit and 2 rotary hearth furnaces operating with oxyfuel. Flameless oxyfuel will be employed for even faster and more uniform heating and lower emissions of NOx. The engineered solution is also prepared for a future possible conversion to natural gas.
Linde has since 1990 installed over 110 REBOX® oxyfuel solutions in reheating and annealing applications, both batch and continuous type furnaces.
By August 2006, Ovako will have REBOX® oxyfuel solutions for reheating in all 48 pit furnaces.
Forges Shops in Sweden upgrade to flameless oxyfuel from Linde
SCANA in Björneborg and UDDEHOLM TOOLING in Hagfors have upgraded to flameless oxyfuel in their car bottom furnaces. Both sites already have vast experience of REBOX® oxyfuel solutions in reheating since the first installation in 1993 at Hagfors and in 1997 at Björneborg.
Those installations were carried out to provide more production capacity, less fuel consumption and CO2 emissions in existing furnaces. The lower flame temperature and better heat distribution of flameless oxyfuel are aiming at further reduction of NOx emissions and improved uniform heating of the steel ingots prior to forging.
SCANA, Björneborg, Sweden equipped with REBOX® oxyfuel solutions in their car bottom furnace.
ThyssenKrupp Steel and Linde cooperate on oxyfuel applications in galvanizing operations.
ThyssenKrupp Steel AG and Linde AG have signed a cooperation agreement concerning development and implementation of new technology in galvanizing lines. The parties will use know-how and operational experience to further develop the use of Linde’s REBOX® oxyfuel solutions in reheating and annealing. The objective is increased plant performance and improved product quality by applying the so-called Direct Flame Impingement (DFI) oxyfuel technology in galvanizing operations. DFI implies that the oxyfuel flame is in direct contact with the object to be heated. This drastically increases the heat transfer (kW/m2) and when employed in an existing catenary furnace it resulted in 50% more throughput capacity.
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Firing with oxyfuel flames directly onto the material, the so-called Direct Flame Impingement technology, results in a highly effective heat transfer for increased furnace throughput
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