Salamander Tapping Services

Successful tapping of the salamander prior to blast furnace rebuilds or major outages leads to shorter outage times and safer working conditions. blast furnace preparation and monitoring to increase temperature and fluidity, coupled with use of well tried drilling and lancing techniques, can achieve total salamander removal. During normal operation the blast furnace hearth contains the coke ‘dead–man’ and the salamander. The salamander includes liquid iron and slag and mixtures of solid iron, slag and coke/carbon. These bottom and hearth constituents must be evacuated when relining the blast furnace and it is also recommended to evacuate the liquid salamander prior to partial relines and taphole repairs. This provides safer working conditions and prevents damage to the hearth refractories as a result of cyclic cooling and heating movements. However, a solid salamander is usually difficult to remove, and a large solid salamander can delay the critical path of the project by several days or even weeks. Dynamiting and oxygen lancing may often be required causing health and safety hazards, thus it is important to maximise the yield of the salamander tap, which is normally tapped immediately after the blow–down.