Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace
Raising pulverized coal injection (PCI) will decrease coke rate, but increase the residence time of coke and abrasion in the blast furnace (BF). Thus, insufficient coke strength will generate more coke fines in the lower BF and result in lower permeability and production of hot metal (HM)....
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2017-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700003S.pdf |
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| author | Shiau J-S. Ko Y-C. Ho C-K. Hung M-T. |
| author_facet | Shiau J-S. Ko Y-C. Ho C-K. Hung M-T. |
| author_sort | Shiau J-S. |
| collection | DOAJ |
| description | Raising pulverized coal injection (PCI) will decrease coke rate, but increase
the residence time of coke and abrasion in the blast furnace (BF). Thus,
insufficient coke strength will generate more coke fines in the lower BF and
result in lower permeability and production of hot metal (HM). For
understanding the behavior of coke at various HM productivities, a tuyere
coke sampler was used to collect the coke samples for measuring the coke
strength. Firstly, the difference of sampled coke under the conditions of
various HM productivities was explored. Secondly, the BF operating conditions
and causes of generating more coke fines was correlated by testing the coke
reaction rate after reaction. Finally, according to the above analysis
results, the relative regression equations had been obtained for sampling
coke properties, BF operation conditions and BF permeability. Furthermore,
the coke strength after reaction (CSR) quantitative target and its online
system at various blast conditions were set to provide some reference for
coke and HM production. |
| format | Article |
| id | doaj-art-7595b335a47c41638441ac647c85043b |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-7595b335a47c41638441ac647c85043b2025-02-02T20:59:56ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752017-01-0153213113810.2298/JMMB160316003S1450-53391700003SResults of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnaceShiau J-S.0Ko Y-C.1Ho C-K.2Hung M-T.3China Steel Corporation, Iron and Steel Research and Development Department, Kaohsiung, TaiwanChina Steel Corporation, Iron and Steel Research and Development Department, Kaohsiung, TaiwanChina Steel Corporation, Iron and Steel Research and Development Department, Kaohsiung, TaiwanChina Steel Corporation, Iron and Steel Research and Development Department, Kaohsiung, TaiwanRaising pulverized coal injection (PCI) will decrease coke rate, but increase the residence time of coke and abrasion in the blast furnace (BF). Thus, insufficient coke strength will generate more coke fines in the lower BF and result in lower permeability and production of hot metal (HM). For understanding the behavior of coke at various HM productivities, a tuyere coke sampler was used to collect the coke samples for measuring the coke strength. Firstly, the difference of sampled coke under the conditions of various HM productivities was explored. Secondly, the BF operating conditions and causes of generating more coke fines was correlated by testing the coke reaction rate after reaction. Finally, according to the above analysis results, the relative regression equations had been obtained for sampling coke properties, BF operation conditions and BF permeability. Furthermore, the coke strength after reaction (CSR) quantitative target and its online system at various blast conditions were set to provide some reference for coke and HM production.http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700003S.pdfblast furnacecoke samplingcoke propertiescoke strength after reaction (CSR)reaction rate |
| spellingShingle | Shiau J-S. Ko Y-C. Ho C-K. Hung M-T. Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace Journal of Mining and Metallurgy. Section B: Metallurgy blast furnace coke sampling coke properties coke strength after reaction (CSR) reaction rate |
| title | Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace |
| title_full | Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace |
| title_fullStr | Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace |
| title_full_unstemmed | Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace |
| title_short | Results of tuyere coke sampling with regard to application of appropriate coke strength after reaction (CSR) for a blast furnace |
| title_sort | results of tuyere coke sampling with regard to application of appropriate coke strength after reaction csr for a blast furnace |
| topic | blast furnace coke sampling coke properties coke strength after reaction (CSR) reaction rate |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391700003S.pdf |
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