Temperature measurement data gathered from off-gas duct of a submerged arc furnace utilised for silicomanganese production.

Blockage of the off-gas duct by dust contained in raw off-gas extracted from a submerged arc furnace (SAF), has been a recurring problem at a South African silicomanganese (SiMn) producer. The problem experienced has prompted an investigation in which sintering of the dust is evaluated as a possible mechanism for the observed blockages. As sintering is heavily dependant on temperature, one of the key factors to the investigation was determining the typical temperatures across the areas of the duct where blockages are commonly observed.