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Tenova Revamps Tenaris Dalmine Rotary Hearth Furnace
01/21/2011 - Tenova LOI Italimpianti has successfully revamped the rotary hearth furnace on Tenaris’ medium-pipe line to enable charging of larger billets up to a length of 5300 mm.
Tenova LOI Italimpianti has successfully coordinated the project to revamp for Tenaris the medium-pipe line’s rotary hearth furnace.
The goals of the revamp were to enable charging of larger billets up to a length of 5300 mm and to improve productivity by about 35%. A significant (about 15%) savings in fuel consumption has also been achieved.
To achieve these goals, the furnace hearth width was extended by 2000 mm. This involved construction of a new internal wall and reduction of the furnace internal diameter, as well as the installation of a new combustion system with a relative control system. The combustion system included the installation of 55 TRGX flameless regenerative burners with very low NOx emissions. Post-installation measurements showed NOx emissions to be well below the legal limits.
An additional important innovation was the application of two new-generation charging and discharging machines.
Tenova LOI Italimpianti is a leading supplier of industrial furnaces and services for the metal industry. Tenova designs and supplies advanced technologies, products and services for the metal and mining industries, operating close to its customers through a network of 33 companies based on the 5 continents.
