Lead smelter and refining

Lead smelter and refining kettles

This part of the plant concern the supplying of a rotary furnace and kettles to melt grids/poles and Paste, to produce hard (Pb/Sb) and soft alloys.
The plant is designed to work 24 hours day so you have to buy double smelting department.
Here is indicated the complete day production system.

PROCESS DESCRIPTION
The process is based on smelting grids and paste in rotary furnace on different time:

• Pb-paste and Pb-sludge (PbO, PbO2, PbSO4, PbCO3): to produce soft lead bullion.
  
• Grids to produce hard lead bullion. The soft and hard lead bullions are refined in the kettles on the follow operations:
  - Copper removal
  - Tin removal
  - Antimony removal
  - final refining
  - casting of 25 Kg ingots
  

The rotary slags are sent to disposal.
The refining ash and drosses will be re-charged to the rotary.

Composition:

• grids and poles, up to 37 MT day, at 97% purity, moisture 2% +-
• Paste and sludge up to 57 MT day, at 75% +- (see your analyzes) yield, 25% to 9% moisture (filterpressed), 5% approx. of Sulphur.

To reduce costs of smelting plant, we supply also the stirring tank and paste density adjustment, and the filter press. Our filterpress can reduce the moisture down to 9% max.
This unit is also (option) ready for desulphurization plant.