Dave Dickey Forum Moderator 295 Posts
Re: Can you offer advice for impeller diameter and speed?3 November 2010 at 1:29pm
This question is missing some essential information, like how big are the particles and what is their density? Without that information, I can only turn the problem around. Assuming that the particles are sand-like with a specific gravity around 2.4 (2.4g/cm), a 889 mm diameter, hydrofoil running at 84 rpm will be able to suspend (off-bottom) particles as large as about 100 microns (0.1 mm) in diameter. Particles as large as 150 microns (0.15 mm) in diameter will only be kept moving on the bottom of the tank.
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I would like to maintain homogeneity between water and solid. The solid content is 5% weight. My tank dimension would be 3380 mm (ID) and 3700 mm (height) -- it's cylindrical. I want to use three-blade hydrofoils impeller with 889 mm diameter impeller, 84 rpm and power motor will be 0.75 Kw. Will this produce good mixing?
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