20 PROjECT PRIDE
productivity by 10% or so. Thereby we analysed
this parameter and asked all suppliers to offer their
mill with at least one size bigger classifier than their
standard. Pfeiffer has initially offered 45 m^2 and later
on increased it to 53 m^2- Maximum efficiency of collecting cyclone: This
is also a very important parameter for any grinding
system as if the efficiency of collecting cyclone
increases the dust load on bag house and its auxiliary
equipment (such as RAL, chain conveyors, hot dust
circuit, etc.) reduces and the power reduction is
substantial when compared to increase in sp. power
consumption of raw mill fan. Thereby we have asked
suppliers to offer maximum possible efficiency of
collecting cyclones
Roller Press Option- Roller dimension to be as max as possible with
higher D/W ratio; few benefits of it are listed below:
a. Better feed distribution
b. Better roller robustness
c. Bigger feed size can be handled
d. At same circumferential speed, the RPM of rollers
would be different due to roller dimensions, the
lesser value is good which increases life of wear parts- Maximum grinding pressure to be designed:
Having higher margins on grinding pressure enables
mill to have excess margins for future potentials