what is the criteria to velocity in vertical gravity piping for solids falling by gravity?.
(Solids are polyetilene pellets)
This criteria to velocity helpme to justificate a change of diameter in a existing piping.
Thanks for your help
In a Silos of Polyetilene Plant we need calculate severals lines, wich carry Low Density Polyetilene from a Centrifugal Dryer up to a Bin passing across a classifing screen and Magnetic Separator and a Autosampler.
Which is the criteria to calculate the optimal diameter to carry by gravity the...