Design Mixers to Minimize Effects of Erosion and Corrosion Erosion

International Journal of Chemical Engineering. 2012;2012 DOI 10.1155/2012/171838

 

Journal Homepage

Journal Title: International Journal of Chemical Engineering

ISSN: 1687-806X (Print); 1687-8078 (Online)

Publisher: Hindawi Publishing Corporation

LCC Subject Category: Technology: Chemical technology: Chemical engineering

Country of publisher: Egypt

Language of fulltext: English

Full-text formats available: PDF, HTML, ePUB, XML

 

AUTHORS

Julian Fasano (Mixer Engineering Co., 2673 Stonebridge Drive, Troy, OH 45373, USA)
Eric E. Janz (Chemineer, Inc., 5870 Poe Avenue, Dayton, OH 45414, USA)
Kevin Myers (Department of Chemical & Materials Engineering, University of Dayton, 300 College Park, Dayton, OH 45469-0246, USA)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 14 weeks

 

Abstract | Full Text

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.