| 摘要 |
A horizontal drum concrete batch mixer (10) comprising a cylindrical mixer drum (12) which may be rotated in a mixing direction or a discharge direction. The interior of the drum has mixing blades (62) provided thereon for mixing the concrete when the drum is rotated in its mixing direction. The interior of the drum is also provided with transfer blades (60) which transfer the mixed concrete from the inlet end (18) of the drum to the discharge end (20) of the drum when the drum is rotated in its discharge direction. A discharge chute (30) is movably positioned in the discharge opening (28) formed in the discharge end of the drum and is movable from a discharge position to a mixing position. A plurality of spaced-apart discharge blades (64) are secured to the interior of the drum adjacent the discharge end thereof for delivering the mixed material into the discharge chute when the discharge chute is in its discharge position and the drum is rotated in its discharge direction.
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