Abstract
Calcium carbide waste paste is highly concentrated and viscous, rich in calcium, and has a great comprehensive utilization potential. Comprehensive utilization process based on high-pressure pipeline transportation is the best choice for use of calcium carbide waste. But the theory of pipeline transportation of the paste has rarely been reported. Industrial-scale transportation experiments with diameter of 75mm, 100mm, and 125mm were conducted, respectively. The results show that the pipe pressure is linearly distributed along the pipeline, but it is piecewise linear. The pipe pressure in the front end drops faster than that in the back end of the pipeline. The pipe pressure is proportional to the flow rate of calcium carbide paste. The delivery resistance increases greatly as the pipe diameter decreases at the same flow rate.
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