×
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

How to produce even-sized balls/pearls with a peristaltic pump

How to produce even-sized balls/pearls with a peristaltic pump

How to produce even-sized balls/pearls with a peristaltic pump

(OP)
I need uniformly shaped balls of an alginate/cell solution. I have three (but different) peristaltic pumps and hoses at my disposal.
Does anyone know how I could make this process more efficient? Thought of something like a shower head but no idea how I manage to distribute the viscous solution evenly in the shower head. Does anyone have a good idea :)?

RE: How to produce even-sized balls/pearls with a peristaltic pump

The pearl size appears to be determined by simple gravity and surface tension, so as long as the feed speed isn't increased too dramatically, multiple tubes would improve the overall throughput. By applying the main flow far enough back from the shower head outlets, the flow through each outlet should be (roughly) equivalent... the slower-to-fill heads will continue to produce pearls, just at a slower rate. It will take some tweaking, but the distribution channel to the shower head will likely be the only place that needs it... just make that channel long/wide compared to the head itself so outlets in the center aren't provided with more pressure than those on the outer rim.

Dan - Owner
http://www.Hi-TecDesigns.com

RE: How to produce even-sized balls/pearls with a peristaltic pump

Arcadio777,

Do you need efficiency, or accuracy?

If you mean efficiency, what do you mean by "efficiency"?

How viscous is your solution?

--
JHG

RE: How to produce even-sized balls/pearls with a peristaltic pump

Need more description relate to your problem

https://sahiguru.com/

RE: How to produce even-sized balls/pearls with a peristaltic pump

(OP)
thank u all for the quick responses.
@MacGyverS2000, thank you very much, that are good suggestions that i will implement. the "showerhead" was only an example and how imagine the outlet to look like (also bc of my shitty english). Do u have a better kind of outlet structure that could work like a showerhead?

@drawoh
efficiency in production meaning that i can produce a lot of beads per hour and accuracy in shape/size. Although i would prefer accuracy over efficiancy if u have an idea.
The most similar i could think of is honey, although slighlty more fluid

RE: How to produce even-sized balls/pearls with a peristaltic pump

A PVC tube, holes drilled along its length, and short pieces of metal tubes pushed in (for better consistency in output hole size). Quite simple (but tedious) to make. Drop size will be based upon metal tube hole size and fluid pressure.

Dan - Owner
http://www.Hi-TecDesigns.com

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


Resources

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