Dust collection riddle: Use 3 Onieda Dust Deputies and get 2x the suction!

[Michael W. Clark]

Alan,

Do an internet search for "multi-clone". Its basically a baghouse with cyclones instead of bags. The cyclones are axial flow and are usually castings. I thing this is similar in concept to what you are referring to.

[Alan Schaffter]

Alan,

Do an internet search for "multi-clone". Its basically a baghouse with cyclones instead of bags. The cyclones are axial flow and are usually castings. I think this is similar in concept to what you are referring to.

No, actually thinking much smaller, shop size, with multiple cyclones between a mini and a standard Pentz in size and something that could handle the CFM generated by a 3-5 hp motor and material handling blower with 14 - 16" impeller. The Oneida triple can't handle that kind of CFM. As I said in my previous post, you probably could design it to handle the CFM but the SP resistance would likely be unacceptable.

[Michael W. Clark]

The SP would depend on the sizing of the individual cyclones. The larger, generally the less resistance. If using two cyclones, you would size each cyclone for half the system flow.

There are only a few reasons I can think of for doing multiple cyclones
1. Reduce height requirements with 2 cyclones versus one large cyclone.
2. Maybe less shipping costs if there are length/size issues for a larger cylone. (For example, If you go over a certain length with UPS, the cost goes up significantly. In industry, it may mean the difference between a permitted load or police escorted load, big $$ difference in shipping.)
3. The manufacturer already has an "off-the-shelf" cyclone rated for X CFM, but the system requires 2X CFM.

Mike

[Alan Lightstone]

I think you guys are thinking too small. On Top Gear, they made a blender out of a V-8 engine. I'm thinking that a 6.3L could develop serious SP and tornado like CFM. Anyone for a 350HP cyclone?

[ian maybury]

I don't know enough about the fluids/dynamics to be able to take a stab at what the effects using multiple small cyclones might be, but given that Dyson went for them for household vacuums it's not impossible that scale effects kick in so that they perform very differently on fine dust to larger models. If nothing else a particle of dust has only got to drift a very small distance to drop through, plus since centripetal force = mVsq/R it'll generate a lot more 'fling' for a given air entry speed.

Losses could be an issue, cyclones in effect use the kinetic energy of the inlet air to achieve separation....

ian

[Jim Neeley]

I think you guys are thinking too small. On Top Gear, they made a blender out of a V-8 engine. I'm thinking that a 6.3L could develop serious SP and tornado like CFM. Anyone for a 350HP cyclone?

LOL, Alan..

I'm envisioning 1,800 cfm @ 90" of SP. To heck with sucking a golf ball through a garden hose... more like a basketball through a DC system.

Vent it outside and implode your shop walls!

[Michael W. Clark]

I think you guys are thinking too small. On Top Gear, they made a blender out of a V-8 engine. I'm thinking that a 6.3L could develop serious SP and tornado like CFM. Anyone for a 350HP cyclone?

Actually working on a system now with a 400HP fan and 4 cylones in parrallel. (Not for home use)

[Bob Faris]

Here's a flooring guy who is using two vacuums and a single Dust Deputy. The vacuums are ProTeam.

http://floormasters.com/flooring-pro...php?f=1&t=9732

http://pro-team.com/vacuums/default.aspx?style=1

[phil harold]

ad a few more dust deputys and this could be a dyson for the shop...