Mixer Tank Design

Contest Ended, Winner(s) have been selected.
Design a stainless steel mixer tank of about 9000litres for blending sugar molasses with water prior to fermentation. Suggested dimension of tank is:
Height = 1.52 metres
Diameter = 2.72metres
Please specify agitaor capacity etc.
Tank should be dished bottom with very gently slope for easy of emptying.
Design details.
Company Logo:
  1. AutoCAD
Additional Information

I would like to edit the contest as follows;

Diameter: 2.33 metre (which should make the circumference around 7.3 metres). This way only three steel plates need be joined together during fabrication.

Straight side: The height of the straight side can be increased but should not exceed 1.83 metres.


1st Winner
#13 Mixer.Tank.900.Litres.05 by Zaher
Nov 7, 2012 6:23
2nd Winner
#15 Mixer Tank 9000 L_3 by Tsetso
If you have any requirements and recomendations write me
Nov 10, 2012 19:22
#2 mixtank by ezer153
mixtank 9000lt
Oct 28, 2012 6:26
#3 Mixer.Tank.9000.Litre by Zaher
Oct 29, 2012 1:44
#4 mixer tank design for contest by hudson.3d
mixer tank design for contest with detailled parts
Oct 29, 2012 19:23
#7 MIXER TANK 9000 by Tsetso
Hi, I want to answer some question
Do you want simple design easy for manufacture?
What kind of file format do you prefer?
I can send you :
1. 2D drawings for all parts and asembly drawing in PDF format or SW drawings.
2. DXF or DWG for all parts and Asembly.
3 3D CAD Files in STEP, Parasolids, SW2011 or different file format
Oct 30, 2012 20:36
#10 Mixer Tank 2 by Tsetso
I think electric motor should not be mounted directly on the cover, because there will be sag.
You can use standart wheels or remove them at all.
If you use a propeller that I send you, I can draw attachment to the axes of the propellers
If you have any requirements, please write me
Nov 6, 2012 12:45
#16 Mixer Tank by Stelios
Nov 19, 2012 19:05




Mon, 29 Oct 2012 21:40:44 +0000
Thanks Alen,
1. Normally, the designer is supposed to make sure there is a vent at the top of the tank that will help in preventing vacuum formation and tank collapse.

2. 4mm Stainless steel. No other material

3. Flat reinforced concrete.

4. DN80.
Mon, 29 Oct 2012 13:37:24 +0000
- Is there a possibility of a vacuum in this tank (like, if all molasses would run out from the bottom of the tank, while none molasses (or air) would enter in it, so under-pressure would be created in the tank)?
- Do you need tank to be made out of stainless steel or is there some other material allowable?
- On what kind of surface do you plan to place the tank (flat concrete, special foundation, or something else)?
- How large inlet / outlet pipe for molasses and inlet pipe for water do you need?



Thu, 25 Oct 2012 13:21:21 +0000
1. Molasses will first be metered into the mixing tank or allowed to flow by gravity from a day tank (The Designer should make provision for a stainless steel graduated steel bar permanently fixed inside the tank for measuring volume) then water will be admitted into the tank until the required volume is attained while stirring continuously.

2. The visual access will be via a manhole at the top of the tank.

3. The fluid will be mixed at ambient temperature

Best regards,

Thu, 25 Oct 2012 13:02:24 +0000
I have a few questions:
> How are the two fluids to be mixed?
> Do you need visual access to the mixed fluid?
> At what temperature is the mixed fluid to be kept at?


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