SEAL ASSEMBLY

摘要

SEAL ASSEMBLY A seal assembly for a rotary drum mixer is provided. The rotary drum mixer has a rotatable open-ended drum assembly and a stationary hood enclosing the open-end of the drum. In accordance with the present invention, a seal member is positioned about an annular ring on the drum assembly for inhibiting fine particles of product matter from passing between the drum assembly and the stationary hood along the annular ring. An inflatable bladder is positioned adjacent the seal member to urge the seal member against the annular ring when the inflatable bladder is inflated. Furthermore, a housing onthe stationary hood retains the seal member and the bladder in an annular cavitywhich is open to the annular ring, the cavity being defined by a first annular side wall, an annular outer wall spaced from the annular ring, and a second annular side wall spaced from the first side wall wherein that portion of the housing forming the second annular side wall is readily removable from the firstannular side wall and the outer wall to allow access to the seal member and the bladder.