Table of Contents
Magnetic and Electrical Separation
Volume 4 (1993), Issue 2, Pages 91-105

Charge-Neutralization Electrodes for High-Tension Separators

Technical University of Cluj-Napoca, 15 C. Daicoviciu Street, Cluj-Napoca 3400, Romania

Received 25 May 1992

Copyright © 1993 Hindawi Publishing Corporation. This 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.


Safe and efficient operation of industrial high-tension separators requires a strict control of residual electric charge of the particles emerging the process. Principles of charge neutralization in a roll-type electroseparator are briefly discussed, in order to establish the general features of the corona electrodes that might accomplish this task. A new electrode design is suggested. Its spacific features: small cross-section (neglectable perturbation of the material stream), low corona on-set voltage, good stability of corona discharge during long-time operation, short maintenance time, have been tested on a laboratory model, prior to industrial application. Several design considerations have been formulated, based on a critical evaluation of the experimental results.