Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality
In normal sintering of iron ore, there is a wide difference in temperature of the sinter bed between top and bottom; i.e. the flame front temperature of the sinter bed gradually increases towards the bottom because the lower part gets longer time for drying and preheating by exit gas. Therefore, the...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2021-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100001P.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832570587436810240 |
|---|---|
| author | Pal J. Prasad D. Venugopalan T. |
| author_facet | Pal J. Prasad D. Venugopalan T. |
| author_sort | Pal J. |
| collection | DOAJ |
| description | In normal sintering of iron ore, there is a wide difference in temperature of the sinter bed between top and bottom; i.e. the flame front temperature of the sinter bed gradually increases towards the bottom because the lower part gets longer time for drying and preheating by exit gas. Therefore, the top part may have insufficient fusion and the bottom is excessively fused. Thus, sinter quality may become inhomogeneous and the coke breeze requirement becomes higher than the actual thermal requirement. If it is charged in multiple layers; e.g. higher amount of coke at the top and a lower amount of coke at the bottom, heat will be homogeneously distributed and the actual coke requirement would be lower than the existing. However, no study has been done so far on this. Therefore, the current study explores the possibility of reducing energy consumption in iron ore sintering by reducing the coke ratio from top to bottom without deteriorating the sinter property. 12% reduction in coke breeze rate has been found and the sinter quality has been improved by the use of a triple layer of sinter mix with a lower coke rate towards the bottom. Further, when 5-vol% of oxygen has been enriched in suction gas along with using a triple layer of sinter mix, up to an 18-wt% reduction in coke breeze has been found. |
| format | Article |
| id | doaj-art-c2aac1451fbd4627bcb0b1cd9ba4b19b |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-c2aac1451fbd4627bcb0b1cd9ba4b19b2025-02-02T15:14:53ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752021-01-01571738210.2298/JMMB200513001P1450-53392100001PModified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving qualityPal J.0Prasad D.1Venugopalan T.2CSIR- National Metallurgical Laboratory Jamshedpur, IndiaTata Steel Ltd., Jamshedpur, India + Academy of Scientific and Innovative Research (AcSIR), CSIR- National Metallurgical Laboratory Campus, Jamshedpur, IndiaTata Steel Ltd., Jamshedpur, IndiaIn normal sintering of iron ore, there is a wide difference in temperature of the sinter bed between top and bottom; i.e. the flame front temperature of the sinter bed gradually increases towards the bottom because the lower part gets longer time for drying and preheating by exit gas. Therefore, the top part may have insufficient fusion and the bottom is excessively fused. Thus, sinter quality may become inhomogeneous and the coke breeze requirement becomes higher than the actual thermal requirement. If it is charged in multiple layers; e.g. higher amount of coke at the top and a lower amount of coke at the bottom, heat will be homogeneously distributed and the actual coke requirement would be lower than the existing. However, no study has been done so far on this. Therefore, the current study explores the possibility of reducing energy consumption in iron ore sintering by reducing the coke ratio from top to bottom without deteriorating the sinter property. 12% reduction in coke breeze rate has been found and the sinter quality has been improved by the use of a triple layer of sinter mix with a lower coke rate towards the bottom. Further, when 5-vol% of oxygen has been enriched in suction gas along with using a triple layer of sinter mix, up to an 18-wt% reduction in coke breeze has been found.http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100001P.pdfcoke breezemultiple layersenergy consumptionoxygen enrichment |
| spellingShingle | Pal J. Prasad D. Venugopalan T. Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality Journal of Mining and Metallurgy. Section B: Metallurgy coke breeze multiple layers energy consumption oxygen enrichment |
| title | Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality |
| title_full | Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality |
| title_fullStr | Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality |
| title_full_unstemmed | Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality |
| title_short | Modified coke breeze distribution in iron ore sintering - a novel technique of reducing energy consumption and improving quality |
| title_sort | modified coke breeze distribution in iron ore sintering a novel technique of reducing energy consumption and improving quality |
| topic | coke breeze multiple layers energy consumption oxygen enrichment |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2021/1450-53392100001P.pdf |
| work_keys_str_mv | AT palj modifiedcokebreezedistributioninironoresinteringanoveltechniqueofreducingenergyconsumptionandimprovingquality AT prasadd modifiedcokebreezedistributioninironoresinteringanoveltechniqueofreducingenergyconsumptionandimprovingquality AT venugopalant modifiedcokebreezedistributioninironoresinteringanoveltechniqueofreducingenergyconsumptionandimprovingquality |