Patent ID: 6589049
Filing Date: 2003-07-08
Classification: F27B

Abstract:
A rotary seal assembly for a rotary kiln having a hood and a rotary drum with an opening formed between the drum and the hood, and an end comprising:a flexible framework arrangement that attaches to the hood, the arrangement includes a mounting ring that fixes to the hood; a riding surface that engages the drum as the drum rotates and connects with the framework arrangement in response to the movement of the drum as the drum rotates, the arrangement includes pivot arms having a first end and a second end that are connected at their first end to the mounting ring and at their second end to the riding surface, the riding surface includes a series of seal segments with each seal segment of the series of seal segments connected to the second end of an associated pivot arm of the pivot arms; and a seal that is supported by the riding surface and is in essentially 360 degree contact with the drum and the hood when the drum is rotating and seals the opening between the drum when it is rotating in the hood to prevent fluid flow into and out of the end.