Effect of Feed-Flow Rate in a Solid-Liquid Hydrocyclone Based on Total Solid Recovery Equation

Abstract:

Many studies of hydrocyclones have confirmed that increasing the feed-flow rate results in a higher separation efficiency. The purpose of this study was to investigate the separation efficiency for a 100 mm solid–liquid hydrocyclone with 1 and 2 wt% solid concentrations at feed-flow rates of 2, 3, 4, 5 and 6 m³/hr. The solid concentration and particle size distribution were analysed using drying–weighing and a particle-size analyser (Mastersizer 2000), respectively. The experimental results indicated that an increase in feed-flow rate from 2 to 4 m³/hr produced decreased separation efficiency. However, when the feed-flow rates increased from 4 to 6 m³/hr, the separation efficiency increased. Furthermore, the higher the feed-flow rate, the smaller the cut size. A novel separation efficiency equation in terms of the concentration ratio and flow ratio is also proposed.

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 173-179
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.173
• Online since: August 2017
• Authors: Pichai Soison, Pakpoom Supachart, Pratarn Wongsarivej*
• Keywords: Concentration Ratio, Efficiency, Feed-Flow Rate, Flow Ratio, Hydrocyclone

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