Abstract

Pipeline transportation is an important process of mass industrial use of coal slime. The coal slime is transported in the form of dense pastes under high pressure pipeline. The coal slime yield stress is an important factor to design the pipeline transportation system, but the study on paste yield stress is less seen in published at present. The coal slime yield stress is measured with specific device in this article. Both curves of the speed and the volume concentration on the coal slime yield stress are studied. The relation between the coal slime yield stress and the volume concentration are obtained.

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