Document Type

Article

Publication Date

2012

Publication Source

International Journal of Chemical Engineering

Abstract

A thorough review of the major parameters that affect solid-liquid slurry wear on impellers and techniques for minimizing wear is presented. These major parameters include (i) chemical environment, (ii) hardness of solids, (iii) density of solids, (iv) percent solids, (v) shape of solids, (vi) fluid regime (turbulent, transitional, or laminar), (vii) hardness of the mixer's wetted parts, (viii) hydraulic efficiency of the impeller (kinetic energy dissipation rates near the impeller blades), (ix) impact velocity, and (x) impact frequency. Techniques for minimizing the wear on impellers cover the choice of impeller, size and speed of the impeller, alloy selection, and surface coating or coverings. An example is provided as well as an assessment of the approximate life improvement.

Inclusive pages

1-8

ISBN/ISSN

1687-806X

Document Version

Published Version

Comments

This document is provided for download in compliance with the publisher's policy on self-archiving. It is an open-access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Permission documentation is on file.

Publisher

Hindawi Publishing

Volume

2012

Peer Reviewed

yes