1. Environment and Pollution 2. Material
and Material Science
Brief description
NML has developed an environment friendly
Cokeless Cupola using either low sulphur light diesel
oil (LDO) or natural gas LPG which not only reduces
emission level of the suspended particulate matters
9SPM) but also the sulphur dioxide within Central Pollution
Control Board's stipulated limit of 150 mg/m3 and 350
mg/m3 respectively. In addition it gives liquid metal
worth of making high value spharodized gray (S.G.) cast
irons.
Major Raw Material
Pig iron, Fuel (LDO or Natural gas
or LPG) and flux for slag making
Major Plant Equipment
The furnace is similar to coke fired
cupolas except that there is a water cooled grate over
which ceramic balls are placed to take the load of charge
and provide porosity for flue to go up and melt to flow
done. Liquid or gas burners are fixed below the grate
to impart necessary heat to melt the metal & slag.
Applications
1. Environment and Pollution 2. Minerals,
Metals and Materials
Ferrous casting industries for making machine tool bed,
pumps, auto and compressor product.
Status of Development
: Ready for commercial use
Ecological/Environmental
Impact : Eco-friendly
Technology Transfer Assistance Offered
a) Process Know-How, (b) Details of
the Equipment, (c) Plant lay-out, (d) Assistance in
setting up a plant on separate terms
Collaborating Agency
Director
National Metallurgical Laboratory
Jamshedpur-831 007, India
