【正确答案】解: (1)过滤气速估计为VF=1.Om/min.
( )(2)除尘效率为99/%,则粉尘负荷W=VF△Ct=0.99×6t=5.49tg/m2
(3)除尘器压力损失可考虑为△P=△Pt+△PE+△PP
△Pt为清洁虑料损失,考虑为120Pa; △PE=SE×VF=350Pa;
△Pp=RpV2△Ct=9.5×12×5.94t=56.43tPa, Rp取9.50N·min/(g·m);
故△P=△Pt+△PE+△PP=350+120+56.43t(Pa)=470+56.43 t(Pa)
(4)因除尘器压降小于1200Pa,故470+56.43 t(Pa)<1200,t<12.9min即最大清灰周期
(5)A=Q/60VF=1000×393/(60×1×273)=240m2
(6)取滤液袋d=0.8m,l=2m,a=πdl=5.03m2,n=A/a=47.7取48条布袋
【答案解析】