Talk:Cyclonic separation

message: it would kind of be nice to have pictures/diagrams of these anti-airpollution devices
It looks like 70.171.12.17 said the above.  I found a small diagram of a cyclone and have added it to the article.  This is my first effort at an image insertion, so please offer guidance if I messed up.
Pzavon 02:01, 9 June 2006 (UTC)
thread_title: Comment

message: Well I will oppose the merge from, sort of. The information in that article is wrong in several counts. It is not gravity that causes the particles to exit, as that would constitute static settling, in this case it is the inversion of the vortex causing a high curvature in the fluid trajectory causing particles to be removed from the air stream, owing to the intertial trajectory of the particulate. Neither is a negative pressure required to operate a cyclone, the entire device can be (and usually is, except maybe in household vacuum cleaners) operated by positive pressure applied to the inlet, usually by having a fan or blower downstream of the particulat source. This, whilst a fine point, does not mislead the reader into thinking that less than atmospheric pressure is required to operate a cyclone (though this could work). Other than these points, I think everything there is covered in this article. User A1 (talk) 19:51, 22 February 2010 (UTC)
thread_title:  Merge from [[Cyclone dust collector]] 

message: This line:
Rotational effects and gravity are used to separate mixtures of solids and fluids.
Should read Centrifugal effects are used to separate mixtures of solids and fluids, as well as gravity. LoneRubberDragon (talk) 09:31, 26 February 2010 (UTC)
thread_title:  Refinement in article. 

message: Can anybody add since when this process is known and since when it has been used industrially? --BjKa (talk) 08:31, 26 July 2011 (UTC)
thread_title:  History 

message: Hi, the list of references for this article looks broken, but i have no idea how to fix it.
I added the references template (which for some reason wasn't there) but it didn't fix the problem.
Could somebody please fix it and let us know what the problem was?
Cheers!
Azylber (talk) 14:34, 27 December 2011 (UTC)
thread_title: Broken references

message: Reference needs to be made in this article to
Hoffmann, A.C., and Stein, L.E., 2008. Gas Cyclones and Swirl Tubes: Principles, design and operation. 2nd ed. Berlin: Springer-Verlag. 422p.
which is the principle reference text for this technology. Use of it would help to considerably sharpen the first two or three paragraphs of the article, and introduce a far more complete typology of cyclone separators and categorisers.  Stringybark (talk) 11:02, 10 June 2012 (UTC)
thread_title:  Major textbook reference missing from this article 

message: In the article, the force balance equation
:\frac{dr}{dt} = F_d + F_c + F_b 
is incorrect. The left side has units of velocity, the right side has units of force. Furthermore, in polar coordinates, the radial acceleration has two terms. I intend to correct the equation later.
Johnny (talk) 14:36, 28 August 2012 (UTC)
thread_title:  Equation clearly incorrect 

message: I have to design a steam water separator cyclone which is useful in steam drum.
which type of cyclone is useful for steam water separation there are cylindrical cyclones and conical cyclones which consist of upper conical portion and lower cylindrical portion.Which is more effective, what is purpose of guide plate in cyclones? How to decide the cyclone dimension such as cone angle, inlet size, total axial length.Please give me some suggestions.  — Preceding unsigned comment added by 115.117.113.17 (talk) 19:00, 8 September 2013 (UTC)
thread_title:  steam water cyclone separator