Development of a Regression Model of Stk₅₀Eu for a Hydrocyclone

Abstract:

A hydrocyclone is a device used widely in various industries, especially for separation of solids from liquids. Many factors affect the separation efficiency of a hydrocyclone. In this research, the main objectives were a study of the conical length that affected the separation efficiency and proposal of a regression model of Stk₅₀Eu for a hydrocyclone. First, research was performed on the separation efficiency using a 40-mm hydrocyclone. The effects of conical lengths of 200, 240 and 280 mm were investigated. The tested suspension was a mixture of silica and water. The silica particles have an average size of 9–10 μm at a solid concentration of 0.5% w/v. The feed-flow rate of 1 m³/hr was operated with the constant flow ratio of 0.1. From the experimental result, it was found that the shorter conical length obtained the higher separation efficiency. For a conical length of 200 mm, the cylindrical length of 60 mm and the vortex finder length of 40 mm showed the best separation efficiency, up to 84.06%. Second, a regression model of Stk₅₀Eu of the hydrocyclone was established. In this work, data obtained from a total of 75 experiments in the first part and from earlier research were used to form the relationship between the dimensions of the hydrocyclone and Stk₅₀Eu. The calculated Stk₅₀Eu can successfully be used to predict experimental Stk₅₀Eu.

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 151-159
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.151
• Online since: August 2017
• Authors: Pakpoom Supachart, Santita Rattanaphan, Pichai Soison, Thanit Swasdisevi, Pratarn Wongsarivej*
• Keywords: Euler Number, Hydrocyclone, Regression Model, Stokes Number

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