×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

application of swirl tube to separate solid rustflakes from a flue gas stream

application of swirl tube to separate solid rustflakes from a flue gas stream

application of swirl tube to separate solid rustflakes from a flue gas stream

(OP)
L.S.,

Having searched the internet for suppliers or manufacturers of swirl tubes I find the entries very few and disappointing. Therefore I would like to appeal to the users of this forum to give me some hints or even detailed information, when possible, about the following problem.
At our power plant in Velsen in the Netherlands the phenomenon occurs that rust particles or rather flakes (diameter varying from 1 to 100 mm and a thickness of 0.2 mm) with a density of 3800 kg/m3 are emitted in the flue gas stream at certain stages of the operation. There is a high flow involved (350 m3/s). The stack inside diameter is 5.9 meter.

We are looking for the cause and to eliminate it. But until that time and as a last resort we want to find a way to separate these rust flakes from the gas stream. As we do not want to cause too much pressure drop we think a centrifugal separator device would be the solution to look for. The traditional cyclone design would result in an enormous device, which would also have far fetching implications for the rest of the installation. There is an alternative, a swirl tube that appears to be a more compact device. That would be more promising. I would like to find manufacturers or engineering firms (preferably in Europe, but not limited to this continent) who are able to design such a swirl tube in a reliable way based on proven practice. Word of caution though is that the shape of the flakes is extremely non-spherical, so that the usual formulas might not apply. I did check some literature about gas cyclones, but there is no real conclusive design guide line.
I am even considering a swirl tube in combination with some kind of propellor that forces a strong swirl upon the gas stream in order to reinforce the centrifugal effect of the separator.

For your convenience I include two picturs from literature that visualise the swirl tubes I mean.

So, if some of you may be able to give me some directions or tips to good literature or to specific engineering firms or manufacturers that deal with this subject I will appreciate it. If you know of another proven solution in this respect then please let me know about it.

Thanking you in advance for your comment I await your replies with most interest


Best regards

Karel Postulart, The Netherlands
Nuon Power Generation

RE: application of swirl tube to separate solid rustflakes from a flue gas stream

Consider a cyclone separator in your stream,this will eliminate any paricles of rust etc.

Offshore Engineering&Design

RE: application of swirl tube to separate solid rustflakes from a flue gas stream

I am not sure if Process Barron has a European office, but I would suggest speaking with them.

I was discussing a project with one of their reps a few years ago and I remember that he was quite helpful. I apologize but I do not remember the name.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources