Furnace is a refractory lined oven. It is a batch process. The Lead
oxide is heated and maintained at 450-500 deg Celsius till the
conversion from PbO to Pb304 is complete. Ideally this conversion takes
The production rate
depends on the free lead in the input lead oxide. Lower the free lead in
input oxide, faster will be the Red Lead Batches.
Gas or Oil fired burner is used to maintain the
temperature of the Furnace. Thermocouples record the temperature inside
the furnace, thus putting off the burners when not needed and hence
The furnace is
kept in negative pressure and the combustion air of the burner is
filtered and left in to the atomspere. The furnace is fed by a screw
conveyor from Load cell mounted Silo. The silo uses vibrators to feed
the oxide to the conveyor.