Seeking advice on the stirring method for reaction vessels
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I would like to ask the experienced colleagues: In the process of high-temperature evaporation of liquids and salt crystallization, when the liquid is fed into the reactor, salts gradually precipitate during the evaporation process. By the end of this process, approximately 700–800 kilograms of solid are obtained, with only a small amount of liquid remaining. The material consists of a salt suspension that occupies about one-third of the reactor’s volume. For a 1000L reactor, what type of stirring blades are generally used?
Enameled frame type? Ampules are meant for propulsion, aren’t they?
The information shows a frame type, but the reactor manufacturer says a paddle type should be used. A bit confused.
The viscosity is too high; using frame-type agitators works fine in the initial stages, but as resistance increases, the motor is prone to burning out. Oar- type agitators, on the other hand, do not cause equipment damage, though they cannot provide effective mixing in certain areas. The salt that precipitates out can also lead to blockages
Is a solid-liquid mixture in a fluid state? Will it precipitate and form clumps?
The frame type might not be suitable, after all, the amount of liquid is small; I think anchor-shaped blades would be appropriate. Or combined installation using frame and anchor types.
I’m looking into it – it’s anchor-type mixing; will there be too much resistance if there are many solid particles later on? With paddle types, won’t there be sediment sticking to the walls?
Anchored stirring is feasible; extend it appropriately and keep the bottom height at 35 mm.
The anchor type is probably more suitable than the paddle type. Will there be a high stirring resistance with the anchor type over time?
There are many ways of stirring, each with its own advantages and disadvantages. You can also consider the screw-type one. This also depends on the design of your evaporator for selection.