Dave Dickey Forum Moderator 322 Posts
Re: What's the best mixer configuration for an IBC container?12 August 2014 at 10:33am
This mixer will provide more mixing intensity than can be handled in an IBC container, especially without a top cover. The IBC container is short enough that two (2) pitched-blade impellers would be difficult to position effectively. The upper impeller will contribute to splashing and foaming, especially in the detergent. One (1) four-blade pitched-blade impeller will be more than adequate and should be placed about 0.3 meters from the bottom. A single four-blade pitched-blade 0.6 meters in diameter is more than adequate to mix the contents. Even at 50 rpm, the mixing will be vigorous for a small tank. At 110 rpm, the mixing intensity will probably be more than can be handled in an open container. A 2.5 kW motor is appropriate for the 0.6 meter diameter impeller. Larger impellers, 0.75 meters in diameter will overload a 2.5 kW motor.
I'm using an IBC container (top opened) to mix 1000L carwash high-foaming detergent (viscosity up to 2500 mPas) . Should I use two (2) two-blade, 45-deg, pitched-blade impellers, 0.75 m in diameter with 0.05m wide blades, an electric 2.5kw gear motor for 50 rpm (for foam) and 110rpm? What is the space between the lower impeller and the bottom of the tank, and the upper impeller?
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