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FRP tanks

FRP tanks

(OP)
For the FRP tanks of sizes around 2 metres, could there be a design such tanks when it is mounted with an agitator (rotating at around 100 rpm). It is suggested to have the agitator support through steel structural arrangement outside the tank to take care of the dynamic loads of the agitator.

If the above is to be considered the removal of agitator for maintenance becomes a practical issue.

Thanks to share your experience of the FRP tanks with agitator support on to the tank instead of the external supports.

RE: FRP tanks

Would depend on the size of the tank, the mixing energy requirements, and the fluid properties wouldn't it?

RE: FRP tanks

In most cases a FRP flange with stiffeners is sufficient.

RE: FRP tanks

VJR0512

Mixer load (dynamic) and dead weight has to be taken by tank shell. So, it depends upon shell thickness
and unit laminate strength - try equation 13 of BS4994.

In UK we use a steel mixer bridge, laminated to shell/cone junction and top knuckle - mixer central
on plate, all supported by two channels.

The difficult bit is determining the mixer loads (+ve, -ve and torque) but mixer manufacturers
have been known to be helpful.

Ed Clymer
Resinfab & Associates
England

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