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Electric Arc
Furnaces

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Electric Arc Furnace

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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.

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Key Advantages:

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  • 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:

 

  1. Smelting Tin Ore: Electric arc furnaces are used to smelt tin ore, converting it into molten tin metal by subjecting it to high temperatures.

  2. 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.

  3. 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.

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4×1250KVA EAF layout.png

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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%

4×1250KVA EAF layout.png

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%

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