- Title
- Mixed high basicity sinter and Newman blend lump burden
- Creator
- Liu, Xinliang; Honeyands, Tom; Zulli, Paul; Evans, Geoffrey; O'Dea, Damien
- Relation
- 7th Baosteel Biennial Academic Conferenc: Baosteel BAC 2018. Proceedings of the 7th Baosteel Biennial Academic Conferenc: Baosteel BAC 2018 (Shanghai, China 30-31 October, 2018)
- Publisher
- Baoshan Iron & Steel
- Resource Type
- conference paper
- Date
- 2018
- Description
- Although the natural iron ore lump is more environmentally friendly and costly effective than sinter and pellet, its ratio in blast furnace (BF) burdens in China is usually less than 15%, which is obviously lower than that for Japan (> 20%). One of the main reasons for the low lump utilisation is the perception that the softening and melting (S&M) properties of lump ores are not as good as sinter or pellets. This has been proven to be inaccurate as the interaction between sinter and lump significantly improves the S&M behaviour. Recently, Chinese steel mills are paying more and more attention to lump to cut down the emissions and maximise profits. As an example, the lump ratio for a 1050m3 BF at Shaoguan Steel increased from 17% to ~23% (replacing pellet) whilst coke rate was decreased by 5kg/t hot metal and the productivity was increased from 2.9 to 3.3 t∙m-3∙d-1. In this work, the interaction between a high basicity sinter and Newman Blend Lump (NBLL) were studied, including the S&M behaviour, bed structure and chemical reaction. A global BF model was used to predict the impact of the mixed burden on BF performance.
- Subject
- iron ore lump; interaction; softening and melting; modelling
- Identifier
- http://hdl.handle.net/1959.13/1420531
- Identifier
- uon:37601
- Language
- eng
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