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Designing a standard solid liquid mixing tank

01/22/2008 10:56 AM

We have a mixer which is very antique. I need a sugestion/ standard design for a mixer which mixes organic solvent and rubber. In initial stages the rubber would be hard and the power required for mixing this would be high. But after sometime it would become a semisolid. So I need a sugestion to design a standard mixer for this.

The problem over here is the design of the shaft, Propellors. The mixing power would be very high initially and the power required and the propellor design would be different (at the bottom of the mixing tank) and the design of these two would be completely different at the top of the mixing tank as it would be a viscous liquid at the top.

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#1

Re: Designing a standard solid liquid mixing tank

01/23/2008 2:22 AM

Dear colleague,

A ribbon mixer is a standard piece of equipment, can be purched brand new off-the-shelf, or a used one available by copanies that make changements and even an artisan made mixer.

(it needs a half cut large barrel, a shaft with gears and welded flights driven by an electric motor alligned to it.)

I hope I've been of some help.

Best regards,

Jacob Scheinrt

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#2

Re: Designing a standard solid liquid mixing tank

01/23/2008 8:36 AM

For situations like yours batch mixing may be very difficult. We recommend a continuous blender for high viscous powder/liquid combinations. The various ingredients are starve-fed into the blender so a rubber powder feeder will be required.

Click http://www.readco.com/mixing-testing.html for more information.

Regards, Delmar Schmidt
Melfi Technologies Houston
www.melfitechnologies.com

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#3

Re: Designing a standard solid liquid mixing tank

01/23/2008 10:32 AM

Let's analyse your problem further from basics. The 2 friends posted positively. Yet!

  • Your Mixer was Batch. You want to continue Batching-- means load rubber+solvent-keep mixing till done--and stop>discharge
  • Do you want to change over to "Slow adding of solids and continuous withdrawal of final glue in measured flow rates?"
  • Do you want to continue batching but add the solids in tiny chips cut-up and comminuted outside of mixer?

Depending on your replies to these 3 -- a New approach can be planned rationally.

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