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公开(公告)号:US20200290011A1
公开(公告)日:2020-09-17
申请号:US16352905
申请日:2019-03-14
申请人: Paul William Belanger , Kirk F. Larson , Arya Ayaskanta , Mark A. Salay , John P. Ricotta , Jeremy D. Faust , Richard D. Lenz
发明人: Paul William Belanger , Kirk F. Larson , Arya Ayaskanta , Mark A. Salay , John P. Ricotta , Jeremy D. Faust , Richard D. Lenz
IPC分类号: B01J19/32
摘要: A wiper band assembly suitable for use in packed distillation columns used in an air separation unit is provided. The wiper band assembly includes specially designed metal or metal alloy wiper tabs that are longer and thinner than conventional wiper tabs. The longer and thinner wiper tabs preferably have a thickness between about 0.05 mm and 0.25 mm and a length greater than about 50.0 mm. The physical dimensions and characteristics of the wiper tabs are selected to avoid permanent deformation during the installation process and provides continuous engagement with the interior surface of the packed column wall when the wiper tabs are exposed to pressure differentials typically seen in such packed distillation columns.