(1)C气化=420×0.8523+120×0.8+24.5×0.4293×12/44-45=411.84kg/t
V煤气=1.8667×411.84/(0.2370+0.1818+0.006)=1810m3/t
(2)V风=1810×0.5623/[(1-0.02)×(1-0.21)]=1315m3/t
(3)1kgC耗风v风=0.933/(0.21×0.98+.0.5×0.02)=4.325m3/kgC
C风=1315/4.325=304.05kg/t
C燃=420×0.8523+120×0.8=453.97kg/t
则:燃烧率=304.05/453.97=0.67或67%
(4)CdFe=C气化-C风-CdSi,Mn,P,S-1.5C熔-C焦挥
C熔=24.5×0.4293×12/44=2.87kg/t
CdSi,Mn,P,S=5.2×24/28+2.9×12/55+1.0×60/62+400×0.008×12/32=7.26kg/t
则:CdFe=411.84-304.05-7.26-1.5×2.87=96.22kg/t
rd=(96.22×56/12)/945.6=0.475