Has anyone considered a design where the wall follows a scroll pattern? The drop slot would follow the outside of the path defined by the scroll and gradually narrow as it got further inside. This would force the flow path to be longer and the inner area of the scroll would have a tight radius to increase the centrifugal force on the particles?
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Thien Cyclone Separator Lid Discussion / Testing
January 13, 2014, 05:10:01 PM
I have seen some complicated testing methods proposed, starting with a board and then making many error prone measurements. Instead:
Start with a known quantity of something like bread flour, say one pound. Run it through the separator, then weigh it. Better yet, take what is separated out and run it through again. Keep repeating this until a significant portion, say at least 20% has been lost.
This way, you know how "fine" the material is that you are testing with. It would also be easier to use a "standard" material for testing by forum members.
It might also be useful to have a "standard" design that could be used to evaluate modifications. Then we would all be comparing apples to apples.
Start with a known quantity of something like bread flour, say one pound. Run it through the separator, then weigh it. Better yet, take what is separated out and run it through again. Keep repeating this until a significant portion, say at least 20% has been lost.
This way, you know how "fine" the material is that you are testing with. It would also be easier to use a "standard" material for testing by forum members.
It might also be useful to have a "standard" design that could be used to evaluate modifications. Then we would all be comparing apples to apples.
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Thien Cyclone Separator Lid Discussion / Why smooth walls?
January 12, 2014, 06:40:43 PM
If the point of the DC is to slow down the air so particles will drop out, wouldn't a rough inner surface be a good thing? I am wondering if attaching a very course sandpaper to the lower half of the inner wall would be a good thing as it would slow the air just above the baffle slot.
Aside: has there been any though given to putting "deswirl" vanes below the baffle to minimize disturbing the already separated dust?
Aside: has there been any though given to putting "deswirl" vanes below the baffle to minimize disturbing the already separated dust?
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