Mill Inerting Systems Presentation to the ASBCUG
"D" mill average balance Poor coal ﬁneness often yields poor distribution of the coal-air mixture, as large coal particles and air mix to form a two-phase mixture that will not homogenize. Good coal ﬁneness creates a homogenous and balanced mixture that behaves more like a gas than a two-phase mixture of air and fuel. 2. Burn with .balancing air and fuel flows across coal pipes, but few actually sample the coal flowing to the burners . mill coal fineness produced and to calculate pulverizer performance. We perform isokinetic coal sampling . biased up. In Figure 7, the fuel distribution was poor and fineness was imbalanced. The blue line in Figure 7 shows fuel fineness .