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VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN='8th ECIC & 9th ICSTI 2022':MAILTO:info@ecic-icsti.com
LOCATION:Room „Focke Wulf“
SUMMARY:Temperature monitoring in the raceway during the injection of PC: Thermovision camera measurements
DESCRIPTION:The raceway parameters such as the temperature (RAFT and real temperature), the temperature distribution, and the ignition/combustion characteristics of injected auxiliary reducing agents (ARA) have a strong impact on the operational parameters of the blast furnace process. Due to the fact that various factors influence the raceway conditions, it is necessary to monitor these conditions under changing blast parameters, e.g. hot wind volume, hot wind temperature, oxygen content and the injection rate of auxiliary reducing agents (ARA). Using various BF operational conditions, it is crucial to gain a deeper understanding of the adjustments necessary to achieve a high PC and a low coke rate. This contribution focuses on the applicability of thermovision camera (TVC) measurements for the analysis of raceway conditions, and in particular for an investigation of the interplay between the blast furnace parameters and the raceway conditions, in order to optimise the BF process. To analyse the influence of these process parameters, two TVC measurement campaigns were conducted at two different European blast furnaces during coal injection. The TVC measurements were used to investigate the temperature distribution of the injected coals (PC) in the raceway and their influence on the blast furnace. The statistical software programme Stata was used for data analysis. The results will be used to improve and support raceway and shaft models, as well as predictions of the effect of PC residues (such as char) and their behaviour on the BF operation. Unburnt coal or PC conversion degree affects both measured temperature and RAFT.
CLASS:PUBLIC
DTSTART:20220831T102000
DTEND:20220831T104500
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