Powder and Bulk Engineering
Friday, August 29, 2014
Skip Navigation LinksHome) Item Details
Powder and Bulk Engineering is a technical publication devoted to readers in the bulk solids market, worldwide.
Technical Articles
Item Details:
Publication Date: 03/2003
Pages: 4
PDF Format
Related Item(s):
Recommended Item:
Using ultrasonic devices to improve sieving

Sticky powders and powders with many same-size particles tend to lodge in the apertures of the mesh in vibratory screeners. The phenomenon, known as blinding or blocking, reduces the capacity of the screening operation. This article describes how ultrasonic devices prevent blinding and how they enable screeners to handle finer powders and higher throughputs.

In most powder processing operations, sieves, screeners, and other size separators rank low in the order of equipment costs. But the importance of sieving to the manufacture of fine powders cannot be overstated. Thus, any technique that improves sieving also contributes to the success of the entire power processing operation. Ultrasonics is one such technique. It applies a secondary vibration to the mesh of vibratory screeners to prevent particles from blocking, or blinding, the openings in the mesh.

To read this entire article:

You may purchase this article now for personal use. Simply click the Buy Item button above, enter your payment details, and download the article. It will be available to you for 7 days for viewing, printing, or saving for future reference. All articles are copyrighted by CSC Publishing, Inc. and cannot be used for commercial purposes without express permission in writing from the Publisher. This includes but is not limited to: web posting, printing, or sharing via email.


Your payment information is forwarded in an encrypted form, using 40- or 128-bit Secure Socket Layer technology, only to our payment gateway ( for processing.


To view an article, you must have Acrobat Reader installed on your computer. Click on the icon to download Acrobat Reader free of charge.

      Copyright 2014, CSC Publishing Inc. ALL Rights Reserved * Privacy policy