Development Of Pumps And Source Of Combustion In Automated Tilting Furnace

Abstract

The previously used tilting crucible furnace in our foundry workshops are associated with many challenges such as lack of manpower involved in carrying the crucible pot with the tongs or the ladle alongside the with the molten metal at such a high temperature from the crucible furnace. The development and fabrication of automated tilting crucible furnace has a five main components which includes; the furnace shell, the refractory wall(lining) the burner, and its pipe, fuel tank and crucible pot, the furnace is a crucible type of furnace which melt only aluminium scraps. The furnace body is enclosed in a cylindrical metal sheet measuring 355mm diameter and 445mm high and it is lined internally with superior refractory bricks of 50mm thickness. The furnace by calculation has these specifications; circumference of 395mm and 0.395m^3, weight of 30kg. the melting process is done in a crucible rammed externally with fired clay and made from heat resistance sheet at temperature of 700*C to 800*C. An air blast from electrically powered centrifugal blower is atomized with spent engine oil of which flow down by gravity and is controlled by throttle valve in the fuel line and from the heat source when they mixed inside the combustion chamber.