|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Installation of a Brown Field Slag Reduction Furnace: State of the Art Off-gas Treatment with Dry Gas Cleaning for SO2 Capture
||Peter Weber, Dirk Behrmann, Thomas Breuer
|On-Site Speaker (Planned)
A new lead slag reduction furnace for the treatment of lead-rich slags from an existing top submerged lance (TSL) furnace has been installed at the Weser Metall (WMG) Lead plant in Nordenham, Germany. With the new reduction furnace the lead content in the slags is lowered significantly and lead bullion is produced. A Chinese side-blowing furnace (SBF) was selected for the reduction, all plant technology around the furnace was engineered and supplied by Germany based company Kuettner. The SBF was integrated into a Kuettner process concept for off-gas treatment including direct connection to the boiler unit and controlled forced-air combustion to mitigate accretion formation in the boiler. Due to environmental requirements, this expansion of the lead operations had to ensure a decrease of the existing emission footprint of the entire plant. To achieve this, Kuettner has installed a flue gas process line for the slag reduction furnace which integrates several existing emission sources from TSL operations and guarantees dust emissions below 0.2 mg/Nm³ and SO2 values below 250 mg/Nm³ without the need for wet scrubbers.