For transporting dry, powdery solids horizontally over short distances, which conveyor type is most suitable?

Introduction / Context:
Screw conveyors are widely used for powders, granules, and small particulates because they contain the material in a trough and meter it effectively.

Concept / Approach:
Enclosed screws minimize dusting, handle a range of bulk densities, and can incline modestly. Belts can spill fine powders and are less precise for short, enclosed transfers; bucket elevators are primarily vertical conveyors.

Final Answer:
Screw conveyor