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us4111439a rotary seal google patents in South Africa

  • US4111439A - Rotary seal - Google Patents

    A rotary seal seals a large, high temperature rotary drum, such as a rotary cement kiln, from the inflow of ambient air where the drum is mounted for rotation in respect to a stationary hood, the drum having a substantially circularly cylindrical surface at one open end thereof substantially coaxial with the axis of rotation of the drum, and the hood having an opening through which the ...

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  • US3940239A - Rotary reducing kiln seal - Google

    A seal is disclosed between a stationary hood and an end of a rotary kiln enclosed thereby to prevent entrance of atmospheric air or the exit of process gas. The seal includes a first annular seal ring on a flange to rotate with the kiln, and a second and nonrotating annular seal ring mounted on an axially movable cylinder arranged around the kiln.

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  • Magnetically-controlled rotary seal - Google Patents

    A non-contacting rotary face seal assembly includes a first sealing member, including a first sealing face and a first magnetic element; and a second sealing member, including a second sealing face and a second magnetic element. The first and second magnetic elements of the first and second sealing members provide a magnetic repulsion force between the first and second magnetic elements such ...

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  • US5383672A - Seal structure for rotary kiln - Google

    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.

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  • ZA201704041B - Dust sealing - Google Patents

    ZA201704041B - Dust sealing - Google Patents Dust sealing Info Publication number ... South Africa Prior art keywords dust sealing dust sealing Prior art date 2014-12-18 Application number ZA2017/04041A Inventor Kari Kuvaja ... Dust seal structure of rotary crusher CN203264836U ...

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  • US20100206412A1 - Indexing Arrangement - Google

    An indexing arrangement ( 10 ) includes a rotor ( 12 ); a stator ( 14 ) spaced from the rotor; a rotary seal ( 16 ) located between the rotor and the stator, with the seal being rotatable with the rotor; means for urging the rotary seal into sealing contact with the stator; ports ( 20, 24, 22 ) in the rotor, in the stator and in the rotary seal; and connecting means ( 26 ) for connecting ...

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