Brazil’s first dual-regenerative reheating furnace up and running

The first dual-regenerative reheating furnace in Brazil, supplied by CISDI, has gone into operation.

The furnace, at GUSA Plant’s high-speed wire-rod mill, successfully completed its first discharge of qualified reheated billet in mid May.

CISDI Thermal & Environmental Engineering Company undertook the package supply, its first successful export of IIPR-based technology and equipment of this kind.

Brazil’s pioneering furnace has an output target of 120 tonnes an hour and is a stand-out example of energy efficiency, environmental protection and advanced intelligence.

Multiple CISDI patented technologies have been applied to ensure compatibility with the downstream 600,000-tonne high-speed wire-rod mill, supplied by Primetals.

Air-gas dual regenerative burners have been installed to enable low-heat-value blast furnace gas to be used by the mill’s reheating furnace, resulting in reduced emissions of NOx and energy savings of more than 10 per cent.

The combustion control model which works in conjunction with the basic automation system (L1) and process automation system (L2) enables the furnace to operate virtually unmanned.

Ricardo Carvalho, director of GUSA board, and Sandro Marques Raposo, the head of GSUA Plant commented: “This very successful project has created the first dual-regenerative reheating furnace in the whole of Brazil and it is now operating with highly satisfactory indicators.”