公开(公告)号：US3745748A

公开(公告)日：1973-07-17

申请号：US3745748D

申请日：1970-10-29

申请人： JOHNS MANVILLE

发明人： GOLDFIELD J ,  GRECO V

IPC分类号： B01D39/20 ,  B01D46/18 ,  B01D25/24

CPC分类号： B01D39/2024 ,  B01D46/18 ,  Y10S55/25

摘要： Filtration of submicron liquid and solid particles from large volumes of gas in which the particles are carried is accomplished by passing the gas through a filter medium made up of fibers having an average diameter of up to about 10 microns at a velocity of at least 300 feet per minute and at a pressure drop not greater than 40 inches of water to remove at least 80 percent of such particles.