Many industrial operations need to make mass flow measurements of dry bulk solid materials on conveyor belts, and on screw and chain conveyors (Figure 1). Typical industrial applications include moving materials at mine sites, paper mills, and power plants, as well as bulk material blending. Loading and unloading of trucks, barges, and railcars to and from plants are also popular applications. Mass flow measurements of these bulk solids are required for two main reasons, control and material transfer.
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