Technical data

CHAP-03 BRIEF SYSTEM DESCRIPTION Page 16 of 20
from bunker and feed either to the two roll crusher or bypass the crusher
and feed to conveyor C107A as shown in the flow diagram. The two roll
crusher shall be of capacity 50 tph and shall receive -25mm (10-15%
moisture) coke breeze, crush and discharge over conveyor C-107A.
Conveyor C-107A shall further transfer Crushed/ bypassed uncrushed
material to Junction house CK-3 and discharge over a Mogensen Sizer
of capacity 50 tph for product size of (-3) mm. The oversize (+ 3 mm)
from sizer shall be discharged onto conveyor C-111A which shall convey
and discharge the material onto new conveyor C- 112A in new coke
grinding building. Conveyor C-112A shall discharge into either of two
nos. surge bins of effective capacity ~100 m3 each from where material
shall be withdrawn by Belt feeder and fed to rod mill. Sized material (-
3mm) from rod mill shall be discharged onto existing conveyor C-114,
which shall further convey the material to existing storage and
proportioning bin building through existing conveyors C115, C115A and
C115B.
It may be noted that input material of size -25mm and product material of
size -3mm is the basic system requirement of the integrated fuel
crushing and screening system. The facilities envisaged between input
stage to output stage have been given in the CS. Crushing of coke at
two roll crusher, screening at coke sizer and grinding at rod mill shall be
decided by the contractor in an integrated manner to given the plant
output of –3mm.
03.04.02.03.B Up gradation/Addition of Flux crushing & screening facilities
An additional stream similar to the existing one consists of Primary &
Secondary Hammer Mill with surge bin & vibro-feeders and related
facilities shall be provided by extending flux crushing building. Further
screens with surge bin & vibro feeders in screen building with feeding
conveyor from crushing building to screen building shall be provided.
Limestone and dolomite required for the existing machine of Sinter Plant
III is drawn from bunkers of flux proportioning building and conveyed by