Cement Manufacturers' Association

38 As the target production increment is minimum 1.0 mtpa cement, RP model RP20-170/180 is selected. UltraTech was already operating this RP model at their Panipat and Bagheri plants. The following existing equipments were used for the upgrade concept: • Three feed hoppers along with dedusting filters • Two weigh feeders along with dedusting filters • Belt conveyor feeding to ball mill (only for wet fly ash, if any) • Complete ball mill (double chamber mill converted to single chamber) • Ball mill vent bag filter and fan • Ball mill recirculation elevator (one new elevator considered in tandem to feed new dynamic separator) The design data of new machinery (Table-3) installed for this upgrade job is as under: Table-3: UltraTech Hirmi - Design data of new RP circuit in semi finish mode Equipment Specifications Roller Press RP20-170/180 roller diameter: 1700 mm roller width: 1800 mm roller speed: 1.7 m/s connected motors: 2x 1600 kW Static separator VS 96/20 height (feeding to discharge): 9600 mm width: 2000 mm Dynamic separator SKS-VC 4250 rotor diameter: 4250 mm rotor height: 2678 mm connected motor: 640 kW Separator fan volume: 710000 m3/hr, 65 mbar connected motor: 1900 kW Separator vent bag filter volume: 140000 m3/hr Separator vent bag filter fan volume: 161000 m3/hr, 30 mbar connected motor: 200 kW RP recirculation elevator conveying capacity: 1550 tph