A Conductance Based Solids Concentration Sensor for Large Diameter Slurry Pipelines
Author:
Klausner James F.1, Fu Feng1, Mei Renwei2
Affiliation:
1. Department of Mechanical Engineering, University of Florida, Gainesville, FL 32611 2. Department of Aerospace Engineering, Mechanics and Engineering Science, University of Florida, Gainesville, FL 32611
Abstract
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]
Publisher
ASME International
Subject
Mechanical Engineering
Reference10 articles.
1. Williams, R. A., Xie, C. G., Dickin, F. J., Simons, Jr., S., and Beck, M. S., 1991, “Multi-Phase Flow Measurements in Powder Processing,” Powder Technol., 66, pp. 203–224. 2. Klug, F., and Mayinger, F., 1994, “Impedance Based Flow Reconstruction—A Novel Flow Composition Measuring Technique for Multi-Phase Flows,” Nucl. Eng. Des., 146, pp. 35–42. 3. Beck, M. S., Calvert, G., Hobson, J. H., Lee, K. T., and Mendies, P. J., 1971, “Total Volume and Component Flow Measurement in Industrial Slurries and Suspension Using Correlation Techniques,” Trans. Inst. Meas. Control (London), 4, pp. 133–138. 4. Lee, K. T., Beck, M. S., and McKeown, K. J., 1974, “An On-Line Instrument for Measuring Small Quantities of Dispersed Non-Conducting Liquid in a Conducting Liquid,” Trans. Inst. Meas. Control (London), 7, pp. 341–345. 5. Ong, K. H., and Beck, M. S., 1975, “Slurry Flow Velocity, Concentration and Particle Size Measuring Using Flow Noise and Correlation Techniques,” Trans. Inst. Meas. Control (London), 8, pp. 453–463.
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