I have a 1-ton mixing tank with dimension of 1 m (dia) x 1.5m (H). The tank is used to mix two different kinds of liquids: Butter oil, viscosity of 50-80 Pa.s @ 45 degrees C; and emulsifier, viscosity of 800 mPa.s @ 20 degrees C. What type of impeller is good for mixing to have good dispersion, homogeneous and have some shearing force? How many hp for the motor is sufficient?
Have an insight or suggestion?
Login or register to post a comment.
Dave Dickey Forum Moderator 246 Posts
Re: What type of impeller ensures good dispersion?6 February 2009 at 1:29pmThis type of application is usually handled with a high-speed disperser mixer. The impeller is usually a saw-tooth disk impeller running at a high speed, 1,000 rpm (17 rps). The recommended impeller diameter is 0.33 m driven by a 25 kW motor. Most such mixers have a hydraulic raising and lowering system to access the vessel and move the impeller location vertically to ensure complete mixing. Such mixers also have a variable speed drive to avoid splashing as the temperature increases and the viscosity decreases.