Dust collection technologies have been made great progress, bagfilter dust collection technologies have been made rapid pro gress especially.

• 除尘技术有了长足进步,袋式除尘技术的发展尤其迅速,微细粒子控制、降低排尘浓度、降低造价、降低能耗、扩大应用领域,是总的发展趋势。