How Pneumatic Blender Works Blender is charged with

How Pneumatic Blender Works? • Blender is charged with powders to be blended in the blender either by pneumatic conveying or otherwise. • Air is blown into powder bed through fluidizing cone • After the powder in the vessel is completely fluidized, Agitating air pulses are introduced through bottom nozzle. Contd. .

How Pneumatic Blender Works? • Agitating pulse duration is about 300 to 500 milli seconds. • Interval between pulse is around 20 -35 seconds. • After about 30 to 40 minutes pulsing is stopped and material is discharged through bottom nozzle • While discharging fluidizing air is still blown in the material to avoid segregation of material.

Data Required For Designing Pneumatic Blender • We need to know following properties of material. • Particle Size (Maximum and Minimum) • Standard deviation between particle sizes • Fluidizing Property of Material/ Powder All above properties can be checked at our works.

Comparison between mechanical & Pneumatic Blending Mechanical Blenders Pneumatic Blenders • For 5 T powder Blending Required time is about 3 -4 Hrs • Temperature rise of blend is about 20 o to 30 o C • For 5 T blender about 30 Kw is required for 4 hrs. = 120 Kwhr • Some Pigments are sensitive to temperature rise thus causing loss of quality • For 5 T blending time is about 40 minutes. • No Significant Temperature rise. • Total Power consumption of 5 k. W for ½ Hr. = 2. 5 kwhr. • No temperature rise hence no loss of Quality

PID for Pneumatic Blender

Pneumatic Blender General Arrangement

Inside Details of Pneumatic Blender