High Solid Filled High Viscous Liquid Mixing
High Solid Filled High Viscous Liquid Mixing
(OP)
Hi All:
We are mixing very high viscosity resins with about 80% sand. Liquid is a mixture of three different components, all are completely miscible in each other and all have high viscosity. At present, we are mixing in following way:
1. Introduce heated liquid component_1 and start agitator. This is only 5 weight% of total.
2. Introduce heated liquid component_2. (5% weight)
3. Introduce heated liquid component_3. (10 % weight)
4. Introduce sand (200 mesh) at room temp and keep agitator on and increase the heat input. (50% weight)
4. Introduce sand (700 meah) at room temp with agitator on and heat incrreased. (30% weight).
So when all sand is has been introduced, there is almost a 2ft of layer of sand on top of liquid!!!
Final mixture has, at about 250 F, viscosity is 50-60 cP.
Density of liquid components is 1.11 gm/cc and of sand is 2.20 gm/cc.
Does anyone has any idea to mix these components differently?
I mean to introduce, with agitation on, some liquid then some sand then some liquid and sand...
Or any other procedure?
We are very small company and don't much have experience or talent in the company. The present procedure has been in use for last 20 years but people think that there can be a more "efficient" way.
Please convey your idea.
OR
if you know any good book/article, etc. on such high soild high vicosity liquid mixing system/design please give idea.
Thanks.
Nick
We are mixing very high viscosity resins with about 80% sand. Liquid is a mixture of three different components, all are completely miscible in each other and all have high viscosity. At present, we are mixing in following way:
1. Introduce heated liquid component_1 and start agitator. This is only 5 weight% of total.
2. Introduce heated liquid component_2. (5% weight)
3. Introduce heated liquid component_3. (10 % weight)
4. Introduce sand (200 mesh) at room temp and keep agitator on and increase the heat input. (50% weight)
4. Introduce sand (700 meah) at room temp with agitator on and heat incrreased. (30% weight).
So when all sand is has been introduced, there is almost a 2ft of layer of sand on top of liquid!!!
Final mixture has, at about 250 F, viscosity is 50-60 cP.
Density of liquid components is 1.11 gm/cc and of sand is 2.20 gm/cc.
Does anyone has any idea to mix these components differently?
I mean to introduce, with agitation on, some liquid then some sand then some liquid and sand...
Or any other procedure?
We are very small company and don't much have experience or talent in the company. The present procedure has been in use for last 20 years but people think that there can be a more "efficient" way.
Please convey your idea.
OR
if you know any good book/article, etc. on such high soild high vicosity liquid mixing system/design please give idea.
Thanks.
Nick





RE: High Solid Filled High Viscous Liquid Mixing
It sounds like you are making concrete, hence a concrete mixing concept may work, like maybe a heated rotating drum. If it had baffles in it like a cement mixer that would probably do the trick. That idea might be way off track so you may want to talk to Ross or Chemineer or Lightnin. I have had great luck with Chemineer but my applications are much different. I would presume that you mix very slowly 10-15 RPM? and that what you are looking for is large turnover from top to bottom.
Good Luck
StoneCold
RE: High Solid Filled High Viscous Liquid Mixing
Taking into account your description, and assuming that heating liquids is not a problem for the stability of the liquids, it looks that the viscosity is not a serious issue.
The expensive solution may be to use a system designed by a qualified supplier. Just as my opinion, Sulzer have a wide and specific experience in this area.
If you want to do it by your own -the economic alternative- my recommendation is to separate the issues. First, mix the liquids, heat them up and finally add the sand, slowly, in a vessel prepared for that.
To mix the liquids you may try to develop by your own or buying a static mixer (Koch / Sulzer), heat them up and then transfer to a tank "cubic style" (Several companies offer them for the food industry, among other uses), where you may add slowly the sand and agitate.
Have a look on http://www.tistr-foodprocess.com/MACHINE/Feb2004/Q....
Good luck, have a safe day
J.Alvarez
RE: High Solid Filled High Viscous Liquid Mixing
Hope this helps.
saxon
RE: High Solid Filled High Viscous Liquid Mixing
ChemE, M.E. EIT
"The only constant in life is change." -Bruce Lee
RE: High Solid Filled High Viscous Liquid Mixing
Nick
RE: High Solid Filled High Viscous Liquid Mixing
Mixer was first designed to make concrete, but new applications are developed all the time.
Best slurry in town
http://www.chemec.fi/