Ballast cleaning machine

E - Fixed Constructions – 01 – B

Patent

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104/18

E01B 27/04 (2006.01) E01B 27/10 (2006.01)

Patent

CA 1235331

BALLAST CLEANING MACHINE ABSTRACT In a ballast cleaning machine which comprises a machine frame, a ballast excavating and conveying chain mounted on the machine frame, the chain having a discharge end for the excavated and conveyed ballast, ballast screening apparatus arranged to receive the ballast from the discharge end of the chain and to separate a waste component from the clean ballast, a conveyor band system mounted below the screening apparatus for receiving the clean ballast component and redistributing it to the track, and an endless conveyor band mounted below the screening apparatus for receiving and conveying the waste component: a sifting conveyor band mounted between the discharge end of the chain and the screening apparatus, the sifting conveyor band having an upper stringer receiving the excavated and conveyed ballast from the discharge end and defining openings permitting a portion of the waste component to pass through the sifting conveyor band, and a drive connected to the sifting conveyor band for driving the band whereby partially cleaned ballast is conveyed from the discharge end of the chain to the screening apparatus.

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