(57) A conveyor system for a two-phase flow, such as water containing sand, gravel and
the like, comprising at least one conveyor pipeline (1) with means (2) for generating
a flow, characterized in that the internal surface of the conveyor line bears guide
means (7) for influencing the flow. A pump (2) is accommodated in the conveyor pipeline,
and the guide means (7) are situated immediately upstream of the inlet of the pump.
In case the pump is a rotary pump, the guide means are designed to impart a preliminary
rotation to the flow.
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