SCREW CONVEYOR SHAFT SEAL AND RELATED METHODS

摘要

The present disclosure provides a shaft seal (100) for a screw conveyor. The shaft seal (100) includes a housing (112) that includes an outboard frame plate (116) and an inboard frame plate (114). The shaft seal (100) also includes an outboard compression plate (162) and an inboard compression plate (160) situated between the outboard frame plate (116) and the inboard frame plate (114). A least three sealing devices (188) are situated between the outboard compression plate (162) and the inboard compression plate (160) with an annular recess (168) at least partially formed along at least one of the inboard compression plate (160) and the outboard compression plate (162).