The Kentucky Center for Energy Research Laboratory is currently conducting research to identify wear and corrosion related problems in physical coal cleaning (PCC) plants. The purpose of this work is to establish a data base on materials performance in PCC plants, study the corrosivity/erosivity of various types of Kentucky coals in slurries, and determine wear/corrosion control procedures. This information can then be used to assist PCC operators in selecting suitable materials for their plants. Field work is underway at the Tennessee Valley Authority Paradise Preparation Plant. Test racks loaded with several different types of alloys have been installed at various points in the plant. Wear rates have been measured over a 2200 hour operating period. Results indicate that while stainless steels show very small materials losses, carbon steel and CorTen experience significant material wastage in the process areas tested. Ongoing studies are underway in both laboratory and plant environments.

Subject
Wear, Wash water, Steel surfaces, Water, Materials, Slurry, Steel coupons, Solids, Corrosion scales, Magnetite, Coal, Carbon steel, Cleaning
© 1986 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1986
Association for Materials Protection and Performance (AMPP)
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