Ferroalloy is an alloy of iron with some elements other than carbon. Ferroalloy is used to physically introduce or ”carry” that element into molten metal, usually during steel manufacture. In practice, the term ferroalloy is used to include any alloys that introduce reactive elements or alloy systems, such as nickel and cobalt-based aluminum systems.
Ferroalloys production in India through submerged arc furnace (SAF), is the most preferred way for making bulk ferroalloys of Silicon, Manganese & Chromium. In the open top and semi-closed furnaces the dust is collected in a bag filter plant, whereas in a closed top and plasma furnace, the dust is scrubbed in a venturi system and is produced as a slurry.
| 340 gsm AR Fiberglass with Membrane | 750 GSM Fiberglass with Membrane | Polyester Felt | |
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| In a reverse air baghouse | In a pulse jet baghouse | When the gases are cooled to below 135 deg C, in that case, cheaper polyester felt filter bags can be used | To reduce the emissions below 30 mg/m3, membrane laminated filter bags are required |
