Triboelectrostatic Cleaning of Coal In-Line Between Pulverizers and Burners at Utilities
作者:
J. M. STENCEL,
J. L. SCHAEFER,
H. BAN,
T.-X. LI,
J. K. NEATHERY,
期刊:
Coal Preparation
(Taylor Available online 1998)
卷期:
Volume 19,
issue 1-2
页码: 115-129
ISSN:0734-9343
年代: 1998
DOI:10.1080/07349349808945576
出版商: Taylor & Francis Group
关键词: Coal cleaning;triboelectrostatics;dry separation;charge measurement;recovery analysis;ash rejection
数据来源: Taylor
摘要:
Pulverized coal combustors are the principal means for converting coal to electricity in the United States. Coals used in these combustors have to be beneficiated because of escalating specifications on fuel quality that help to increase boiler efficiency and decrease acid gas emmissions. Because coal is pulverized before its combustion in PC boilers, during which time substantial mineral liberation occurs, it may be beneficial to remove mineral matter from the combustibles by using dry beneficiation techniques after the pulverizers and within the burner pipes leading to the coal burners. One such technique is based on triboelectrostatics. It relies on establishing a differential charge on coal and mineral matter and then separating this charged mixture in an electrostatic field.
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