Coal Pre-treating Technologies for Improving Coke Quality
Producing high quality coke is strongly demanded in ironmaking section. Improvement of coke quality leads to increase of blending ratio of non- or slightly-caking coal in coal charge without deteriorating coke strength. Nippon Steel has developed dry coal charging process such as CMC (Coal Moisture Control) and DAPS (Dry-cleaned and Agglomerated Precompaction System). With the coal moisture being reduced to 5-6mass% with CMC and 2-3mass% with DAPS, the advantages of less heat consumption for carbonization, higher productivity and better coke quality were gained. And the operation of SCOPE21-type coke oven was started at Nippon Steel Oita works in 2008. This paper describes the R&D of coal pre-treating technologies for improving coke quality.
coal coke coking CMC DAPS SCOPE21
Kato Kenji Nomura Seiji
Environment and Process Technology Center, Nippon Steel Corporation, Futtsu-city, Chiba 293-8511, Japan
国际会议
The 5th International Congress on the Science and Technology of Ironmaking(第五届国际炼铁科技大会 ICSTI09)
上海
英文
361-366
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）