Rotary kiln with annular, closed end seal, annular, closed...

Details Rotary kiln with annular, closed end seal, annular, closed... Rotary kiln with annular, closed end seal, annular, closed...

2005-05-17

2005-05-17

Wilson, Gregory (Department: 3749)

Heating

Tumbler-type rotary - drum furnace

Having flexible, cooled, or air curtain seal between rotary...

C277S590000

Reexamination Certificate

active

06893256

ABSTRACT:
The invention is based on the problem of designing an endless sealing ring for the end wall seal of rotary kilns so that it guarantees a high degree of sealing effectiveness with simpler assembly. The most desired features are small tolerances for cross section and diameter. Rotary-kiln end-wall seals according to the invention should exhibit very low wear and tear if possible and have a service life that corresponds to the maintenance intervals of the rotary kiln as much as possible. This problem is solved for an annular, closed seal for the end seal of a rotary kiln between the rotating tube and the stationary end walls, wherein a core ring has a polygonal, preferably rectangular, cross section with a joint protected from tensile loads and the core ring is surrounded by an endless braid to form the desired final cross section, such that the joint of the core ring is fixed and protected from tension, preferably by tension-relieving threads or fibers extending in the ring circumferential direction and anchored on both sides of the joint.

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