Abstract
AbstractBased on the experiments of pulverized coal pneumatic conveying using nitrogen as carrier, the influences of riser inlet height above the gas distribution plate, riser diameter, pulverized coal external moisture content, and supplemental gas flow rate on the conveying characteristics such as pulverized coal mass flow rate and solid‐gas ratio were investigated in a laboratory‐scale experimental setup of a top‐discharge blow tank under atmospheric pressure. There exists an optimal riser inlet height for a given top‐discharge blow tank. The supplemental gas is one of the critical factors affecting the conveying stability and continuity. A model for material mass flow rate prediction with errors ranging from –25 % to +15 % is presented.
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