Lead: Secondary Lead Smelter eTool
Local Exhaust Ventilation Diagrams » Blast Furnace Slag Tap Controls
![diagram of enclosure hooding - blast furnace slag tapping controls highlighting the various features](/sites/default/files/inline-images/blastslagtap.gif)
Design Characteristics
- Transport velocity in ducts: > 4000 fpm
- Enclosure to provide capture velocities at opening of 350-500 fpm
Design Characteristics