SEGREGATION OF COAL PARTICLES DURING CHARGING INTO COKING TOWER
DOI:
https://doi.org/10.59957/jctm.v60.i6.2025.19Keywords:
segregation, coking tower, ash content, particle size classes, sampling, distribution, granulometric composition.Abstract
This study investigates coal particle segregation in an industrial coking plant, analysing particle size and key quality parameters (ash, volatile matter, sulfur). Unlike previous mathematical or lab-based studies, it provides real-world data to optimize coal preparation. Findings show uneven ash distribution across size fractions: the 25 - 50 mm fraction has the highest ash content (6.8 - 32.1 %, average 13.1 %), while lower values appear in the 0.5 - 6 mm range (6.9 - 7.3 %). Fine fractions (< 0.5 mm) exhibit elevated ash levels (average 10.9 %, max. 15.1 %).
Despite stable coal charge properties during loading, variations across tower sections highlight challenges in achieving uniformity. Differences in particle size, volatile matter, and ash content from central to peripheral rows emphasize the need for improved loading strategies. This study underscores the critical role of the loading and distribution stages in preparing a uniform coal charge for coking doffers practical recommendations to enhance coal preparation and coke production efficiency.
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