An instrument has been developed that measures the solids concentration in slurry pipelines ranging in diameter from 5–150 cm. The operating principle is based on conductance, and in contrast to the gamma densitometer, the instrument does not require a nuclear radiation source. The instrument operates on-line, is nonintrusive, and provides real-time output. The instrument measures local concentration around the pipe periphery, and the local values are integrated to obtain the area-average concentration. A graphical display shows the variation of concentration from the top of the pipe to the bottom as well as the area-average concentration history. The instrument has been extensively tested in an experimental slurry transport facility as well as on-line at the Swift Creek phosphate mine in the state of Florida. When compared with a quick-closing valve measuring technique, the mean deviation of solids concentration measured with the conductance based instrument is 0.81 percent based on mass. [S0098-2202(00)00704-5]
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December 2000
Technical Papers
A Conductance Based Solids Concentration Sensor for Large Diameter Slurry Pipelines
James F. Klausner,
James F. Klausner
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611
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Feng Fu,
Feng Fu
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611
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Renwei Mei
Renwei Mei
Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611
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James F. Klausner
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611
Feng Fu
Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611
Renwei Mei
Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611
Contributed by the Fluids Engineering Division for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received by the Fluids Engineering Division September 13, 1999; revised manuscript received June 19, 2000. Associate Technical Editor: S. Banerjee.
J. Fluids Eng. Dec 2000, 122(4): 819-824 (6 pages)
Published Online: June 19, 2000
Article history
Received:
September 13, 1999
Revised:
June 19, 2000
Citation
Klausner , J. F., Fu, F., and Mei, R. (June 19, 2000). "A Conductance Based Solids Concentration Sensor for Large Diameter Slurry Pipelines ." ASME. J. Fluids Eng. December 2000; 122(4): 819–824. https://doi.org/10.1115/1.1311790
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