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

Vacuum pump contamination

Vacuum pump contamination

Vacuum pump contamination


We have a vacuum drying process which in which a slurry is dried in a reactor to a powder. The problem is that aerosols/dust (sized <10 micron) during the drying go past the filters on the reactor and into the vacuum pump system, leaving a tar like substance that requires a lot of maintenance on the vacuum system to get rid of.

Been looking into a solution that could protect the pump equipment from this dust but have had no luck due to limited space in the facility to install large equipment on the inlet pipe.

I have limited knowledge on systems/processes like this and thus wondering if anyone here have any ideas how to tackle this problem or have experience from something similar.


RE: Vacuum pump contamination

Hi ,
Check for spray condenser or contact condenser to clean your stream prior to reach the pump.
A search with your favorite search engine should help you , key words : spray condenser or contact condenser.
Note : a ring vacuum pump should do the job , with flush of the liquid ( partial or total)
My thoughts

RE: Vacuum pump contamination

And look at your existing filters since they don't work.
Are they cooled?
See what can be done to upgrade there also.
but LR pumps are the way to go with dirty processes.
Just remember that the water has to be clean and cold for them to work.

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

RE: Vacuum pump contamination


Thanks a lot for your inputs. Will make to sure check out to the suggestions.

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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