Apparatus for removing solids deposited on inner surface of rotary kiln
AssigneeKubota Corporation
InventorsTakashi Baba, Susumu Hunahashi, Toshihiko Kawabata
Life of this patent
Estimating the term…
Abstract
An apparatus comprises an elongated boring bar having a cutting edge at its front end, an assembly coupled to the boring bar for reciprocally moving the boring bar axially of a rotary kiln, and an assembly for rotating the boring bar. The boring bar is advanced into the kiln with the cutting edge retracted from the kiln wall and, upon clearing the tuyere dam of the kiln, the cutting edge is brought close to the kiln wall by rotating the boring bar. The boring bar is then advanced again to scrape off and remove solid deposits from the kiln wall.
Claims5
An apparatus for removing solids deposited on the inner surface of a rotary kiln including guide rails extending toward a burner hood of the kiln in parallel to the axis of the kiln, an elongated boring bar reciprocally movably supported by the guide rails and having a cutting edge projecting from its front end, and reciprocating means operatively connected to the boring bar to move the cutting edge along the wall of the kiln for the removal of the solid deposit, the apparatus comprising rotating means operatively connected to the boring bar for rotating the boring bar in positive and reverse directions to thereby turn the cutting edge to suitable tilted positions, the rotating means being operable to tilt the cutting edge to an inward retracted position free of engagement with a tuyere dam on the kiln and to tilt the cutting edge to a projected position close to the kiln wall beyond the dam to cut the solid deposit on the kiln inner surface to a desired depth.
An apparatus for removing solids deposited on the inner surface of a rotary kiln including guide rails extending toward a burner hood of the kiln in parallel to the axis of the kiln, an elongated boring bar reciprocally movably supported by the guide rails and having a cutting edge projecting from its front end, and reciprocating means operatively connected to the boring bar to move the cutting edge along the wall of the kiln for the removal of the solid deposit, the apparatus comprising rollers disposed under a front portion of the boring bar and reciprocally movably supporting the boring bar, rollers disposed under a front portion of the boring bar and rotatably supporting the boring bar, lift means operable in relation to the rollers of one of the two types to cause the rotatably supporting rollers or the reciprocally movably supporting rollers to support the boring bar, and rotating means operatively connected to the boring bar to rotate the boring bar in positive and reverse directions and to thereby turn the cutting edge to suitable tilted positions.
Dependencies are inferred from the claim text.