| 摘要 |
A longitudinal sealing ( 20 ), which, as a rule, extends below the rotating tube ( 30 ), is proposed to increase the heating efficiency in a rotary tubular kiln, in which a rotating tube ( 30 ) is surrounded, like a bowl, by heating tunnel ( 32 ) and is indirectly heated by a heating medium. It is designed in the shape of a separation wall between the entry side ( 38 ) and the exit side ( 40 ) for the heating medium in the heating tunnel and consists of a rigid part ( 22 ) and a flexible part ( 24 ), situated thereon and adaptable to the rotating tube profile.
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