Dave Dickey Forum Moderator 292 Posts
Re: What are the motor powers and shaft diameters for these agitators?5 April 2011 at 1:29pm
Assuming that the impeller blades are vertical plates with a width about 1/5 the diameter of the impeller:
Agitator A requires a 7.5 kW motor and a 76 mm diameter shaft
Agitator B requires a 75 kW motor and a 127 mm diameter shaft
Agitator C requires a 7.5 kW motor and a 76 mm diameter shaft
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To be used in various tanks we need to get your answer for agitator motor power and shaft diameter for the following agitator data: Agitator A: Liquid in tank: Density = 1.09 t/m3 Dynamic viscosity = 150 mPa.s Temperature = 85 degrees C (average) Speed: 95 rpm Length in tank = 3650 mm Impeller: 1 row, 2 blades , 900 mm in dia. Tank volume= 40 m3 Agitator B: Liquid in tank: Density = 1.4 t/m3 Dynamic viscosity = 100 mPa.s Temperature = 80 degrees C (average) Speed: 85 rpm Length in tank = 4750 mm Impellers: 2 rows, 2m between rows, 2 blades at each row , 1300 mm in dia. Tank volume= 28 m3 Agitator C: Liquid in tank: Density = 1.48 t/m3 Dynamic viscosity = 10000 mPa.s (average) Temperature = 70 degrees C (average) Speed: 66 rpm Length in tank = 5630 mm Impellers: 3 rows, 1m between rows, 2 blades at each row , 800 mm in dia. Tank volume= 15 m3 For the above agitators, I need motor powers and shaft diameters.
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