Electric Arc
Furnaces
​
Electric Arc Furnace
​
Description: Intense heat generated by the electric arc initiates a chemical reaction that causes the tin ore or tin-bearing material to undergo thermal decomposition and reduction, resulting in the separation of tin metal from its associated compounds and impurities.
​
Key Advantages:
​​
-
Automatic feed
-
Unique dual-port discharge of crude tin and slag
-
Direct slag feed to dilution furnace
-
Closed reduction
-
Lower power consumption
-
Higher Sn recovery
-
Fewer emissions
Here's how an electric arc furnace fits into the smelting process:
-
Smelting Tin Ore: Electric arc furnaces are used to smelt tin ore, converting it into molten tin metal by subjecting it to high temperatures.
-
Reducing Tin Oxide: Electric arc furnaces facilitate the reduction of tin oxide (cassiterite) to tin metal by utilizing intense heat generated from an electric arc.
-
Removing Impurities: These furnaces aid in removing impurities from tin ore through the melting and separation process, resulting in purified tin ready for further refining in kettles.
​
​
​
​
1. Type: DB-EF-1250-40 Electric Furnace
-
Power load: 1250KVA
-
Capacity: 35-40 MT feed/day
-
Gas flow: 3000m3/d; Less smoke emission
-
Feed: Sn>5%
-
Sn in slag: 0.5-2.5%
2. Type: DB-EF-2500-50 Electric Furnace
-
Power load: 2500KVA
-
Capacity: 45-50 MT feed/day
-
Gas flow: 3000m3/d; Less smoke emission
-
Feed: Sn>5%
-
Sn in slag: 0.5-2.5%