公开(公告)号：US20210116125A1

公开(公告)日：2021-04-22

申请号：US17066733

申请日：2020-10-09

申请人： Air Products and Chemicals, Inc.

发明人： RUSSELL JAMES HEWERTSON ,  SHAILESH PRADEEP GANGOLI ,  J. BRUCE KENWORTHY ,  XIAOYI HE ,  ANUP VASANT SANE

IPC分类号： F23D99/00 ,  F27B7/34 ,  F23C6/04 ,  F23D23/00 ,  F23C5/08

摘要： A method of melting a charge in a double-pass tilt rotary furnace having a door, including operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate.