Abstract: An improved sealing structure for a rotary kiln utilized a leaf riding band attached to a truing flange on the kiln's rotating hopper using a plurality of clamps connected to a radial flange on the leaf riding band. The clamps hold the truing flange and radial in abutting sealing relationship without the need for bolts passing through the truing ring.

Abstract: A packing gland assembly for a movable blade damper comprises a packing gland sleeve and a packing gland cap. The cap serves to confine a packing material between the packing gland sleeve and a blade shaft which passes through a damper frame and supports a damper blade. In addition, the packing gland sleeve defines a circular recess which receives a pressure seal between the packing gland sleeve and a frame member. The packing gland assembly is held in place against the frame member by means of two threaded fasteners such that a range of lateral adjustment is provided. In this way, the packing gland assembly is positively and sealingly mounted in place on the frame member, yet is free to follow the blade shaft as necessary to maintain concentricity between the packing gland sleeve and the shaft during adjustment.

Abstract: In a damper having an opening therethrough, an aperture defining blade member is movable between a first position, in which the aperture is aligned with the opening to permit the flow of fluid through the damper, and a second position, in which the blade member substantially blocks the flow of fluid through the damper opening. A sealing member is located around the periphery of the opening adjacent the blade member to substantially abut the blade member in both the first and second blade positions. A pressurized fluid such as air is supplied to the sealing member to promote flow of fluid between the sealing member and the blade member into the opening, and thereby substantially to prevent the leakage of fluid out of the opening between the blade member and the sealing member.