33-55-1010-20203030-4040-5050-60>60 311 17 27 129.57.56.46.6 m(d; /d) 3.5%24.78%87.12% 100% 7=∑ xn=8664 7b=(C入-c出)C C1=20.04g/ 由n中各η核算,若n。=90%, 3-5段颗粒η约为40%,0.4-(d/d)2→d约6.32um 若△P不变,即u不变:√B/B=d/d,B=0062m 取D=0.24m,B=0.06m,h=0.12m, 当.=1389m/时,V=13.89×06×0.12=360m2<3 3-5 5-10 10-20 20-30 30-40 40-50 50-60 >60 3 11 17 27 12 9.5 7.5 6.4 6.6 ηi (=di /dc ) 2 3.5% 24.78% 87.12% 100%   o i i =  = x 86.64% 3 ( ) / , 20.04 / o  = − = c c c g m 入 出 出  c 由ηo中各ηi核算，若ηo = 90%， 3~5段颗粒ηi约为40%，0.4=(di /dc ) 2→dc约6.32m 若Δpf不变，即ui不变： 取D=0.24m，B=0.06m，h=0.12m， 当 B B d d B m / ' / , 0.062 C = =   3 13.89 / , 13.89 0.06 0.12 360 / i S u m s V m h = =   = 时