J. Phil Thien's Projects

dbhost,

I agree, the stated CFM is probably calculated or even exaggerated, reason for my statement was for the fact that even at 1400 CFM with a 6" dia. inlet velocity is over 7000 feet per minute and the volume of my 20" drum at 8" depth would exchange the air 962 time a minute.  So my point is, does the air stick around long enough to drop out the chip and some dust.

Or reducing down to 4" outlet which would create a CFM reduction but slow down the air for drop out.

Am I over complicating a simple process??

Thanks for your thoughts.

Here at work we get our wire feed welding wire in a heavy paper barrel from Lincoln weld. It's about 20" ID and stands about 34" tall.  I have a 2HP DC with a 6" inlet about 1600 CFM, I'm running 6" duct in the shop.

I was wondering if I should make the Thien Baffle with 6" inlet and outlet reduce the pressure drop?
What should the distance be for the baffle opening,still 1.125", the vertical distance between the top lid and the baffle plate where the inlet elbow is located, and how much penetration for the outlet pipe?

Any thoughts or suggestion would be appreciated.