The process
Hot blast stoves heat the blast air for the furnace, burning cleaned blast furnace gas with combustion air from dedicated fans. The duty is clean, steady and critical, with dampers switching stoves between heating and blowing.
The gas
Clean air to the hot blast stoves at steady pressure. A combustion air duty where reliability over long runs is the requirement.
Fans in this process
| Duty | What it does here | Type usually selected |
|---|---|---|
| Combustion Air Blower | Feeds a burner with air at the pressure the burner register needs. | Backward curved and radial tipped |
| FD Fan | Supplies combustion air to a boiler or furnace, pushing ambient air through the air heater and into the windbox against the furnace draft. | Backward curved and backward inclined |
| ID Fan | Sits at the outlet of a boiler, kiln or furnace and draws the flue gas through the plant to the stack. | Backward curved, backward inclined and radial tipped |
| Dust Collector Fan | The fan behind a bag filter, cyclone or multiclone on a dust extraction system. | Backward inclined and radial tipped |
| Fan Silencer | An absorptive silencer at the fan inlet, outlet or in the duct, cutting fan noise with minimum pressure loss.. | Silencer |
Air pollution control
Industries
Related processes
Waste Heat Recovery BoilersRotary Lime KilnsVertical Shaft Lime KilnsSponge Iron Rotary KilnsSinter PlantsCoke Oven BatteriesElectric Arc Furnace SteelmakingInduction Furnace Melt ShopsLadle Furnaces and Secondary MetallurgySteel Reheating FurnacesHeat Treatment FurnacesForge ShopsFerro Alloy Submerged Arc FurnacesIron and Non-ferrous FoundriesHot Dip Galvanising LinesPickling and Acid Treatment Lines