×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

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!

*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

Molten Sulphur Level Measurement

Molten Sulphur Level Measurement

Molten Sulphur Level Measurement

(OP)
Our process pressure leaches concentrate to produce a zinc slurry. We extract the sulphur and melt it. In the past we have had success with steam-jacketed bubble pipes to measure the level of the sulphur in the tank. Due to frequent process upsets, the molten sulphur has recently been foaming, and as a result has overflowed the tank even though the reading of the level indicator may have only been approx.50%. I realize that the faulty reading is due to the changing density of the sulphur as it starts to foam but I have yet to find a suitable level element replacement.Has any one had any success with a radar unit? Do you think it would be able to detect the foam while filtering out the steam that is always present? Any feedback would be greatly appreciated.
Thanks...Tim

RE: Molten Sulphur Level Measurement

I've never seen a foaming sulfur pit. Is it dissolved gas coming out of solution?

Bubblers don't do that and I cannot imagine a steam leak in the jacket doing that either.

Radar units work fine, you may want to steam jacket the nozzle (or fitting to your tank/pit). However, the foam is a bigger issue.

If you have a "froth of sulfur bubbles", it just needs to be reflective enough to get a bounce and that will be your level reading whether you want that reading or not.

You may need a combination of measures (bubbler and radar), one to give you and indication of NPSH on your sulfur pumps and the rada to detect high level conditions.

I'd try to mobilize as much help as I could on soving the process uposet problem. I am surprized that the sulfur is not de-gassing on its own.

What is you sulfur temperature and how clean is the sulfur (brigthness)?






RE: Molten Sulphur Level Measurement

I am not too familiar with your process, but we had problems with a bubbler-type instrument on a molten sulfur pit. We replaced it with a 2-wire Time-Domain reflectometry (TDR) transmitter and our experience has been very successful. We used Magnetrol "Eclipse". I recommend that you explore this possibility.

Regards...Luay

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! Already a Member? Login



News


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close