THERMAL SCIENCE

International Scientific Journal

RECONSTRUCTION OF THE AERO-MIXTURE CHANNELS OF THE PULVERIZED COAL PLANT OF THE 100MW POWER PLANT UNIT

ABSTRACT
After the last revitalization of thermal power block of 100 MW in TPP “Kostolac A”, made in the year 2004, during the operation of the plant, pulverized coal deposition often occurred in horizontal sections of the aero-mixture channels. Deposition phenomenon manifested itself in places ahead of spherical compensators in the direction of flow of pulverized coal to the burners, due to unfavorable configuration of these channels. Coal dust deposited in the channels dried and spontaneously combusted, causing numerous damage to channels and its isolation as well as the frequent stoppage of the operation for necessary interventions. The paper presents the original solution of reconstruction of aero-mixture channels which prevented deposition of coal dust and its eventual ignition. In this way the reliability of the mill plant is maximized and higher availability of boiler and block as a whole is achieved.
KEYWORDS
PAPER SUBMITTED: 2010-04-12
PAPER REVISED: 2010-05-20
PAPER ACCEPTED: 2010-05-25
DOI REFERENCE: https://doi.org/10.2298/TSCI100412013I
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2011, VOLUME 15, ISSUE 3, PAGES [663 - 676]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence