ABSTRACT

The advent of coke dry quenching (CDQ) in coke-making benefited coke plants not only in reducing coke moisture but also in extracting a part of the sensible energy within the hot incandescent coke with a reduction in environmental pollution. In addition to these direct benefits, other advantages include (1) improved coke quality, (2) enablement of higher coke production without compromising quality, (3) online coal-cake bulk density measurement, and (4) improved blast furnace performance. The present study at Tata Steel, Jamshedpur, concentrates on the assessment of these additional benefits when CDQ units were operated at full capacity. Besides, the article also focuses on reviewing the major obstacles faced during CDQ operation, such as clinker formation and coke flotation issues.

摘要

干熄焦 (CDQ) 在焦炭制造中的出现不仅有利于焦化厂降低焦炭水分，还有助于提取热白炽焦中的部分显能，从而减少环境污染。除了这些直接优势外，其他优势还包括 (1) 提高焦炭质量，(2) 在不影响质量的情况下提高焦炭产量，(3) 在线煤饼堆积密度测量，以及 (4) 提高高炉性能。目前在詹谢普尔塔塔钢铁公司的研究集中于评估干熄焦装置满负荷运行时的这些额外收益。此外，本文还重点回顾了 CDQ 操作过程中面临的主要障碍，例如熟料形成和焦炭浮选问题。