A METHOD OF SINTERING OF IRON/METAL ORE FINES USING RAW PETROLEUM COKE OR ANY OTHER HIGH SULPHUR CONTAINING COKE AS FUEL IN SINTERING MACHINE

摘要

This invention relates to a method of sintering of iron /metal ore fines using raw petroleum coke (RPC) or any other high sulphur containing coke as a trimming fuel in a sintering machine comprising the steps of - admixing in wt% a base mix (iron/metal ore fines) - 63- 80%, flux as limestone, dolomite and, lime - 10-13%, CB/RPC as fuel 2.5-3.5%, and the balance being combination of water and revert materials as hot return and cold return fines, the amount of revert material being around 6%, - charging the green mix in the sinter bed of the sintering machine, - sintering the mix at conventional temperature maintained in sintering process to form a sinter, - keeping steel plate coupons at different locations of the main gas pipe line, - maintaining permissible corrosion rates within 2.705 to 3.192 at the discharging end of the main gas pipe line, producing sintered mass without resulting any corrosion in any parts of the sintering machine as evaluated through measurement of corrosion rates of the steel plate coupons kept at different locations of the main gas pipe line.