Optimal preparation of oxidized coal
- Autores: Miroshnichenko D.1, Vasilyev Y.1, Kaftan Y.1
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Afiliações:
- Ukrainian Coal-Research Institute
- Edição: Volume 60, Nº 4 (2017)
- Páginas: 133-139
- Seção: Coal
- URL: https://journals.rcsi.science/1068-364X/article/view/226227
- DOI: https://doi.org/10.3103/S1068364X17040044
- ID: 226227
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Resumo
The oxidation index is an important characteristic of coal and coal batch, indicating the change in coking properties on oxidation. The coke obtained from coal batch containing poorly clinkering oxidized coal has a higher content of isotropic carbon and a lower content of anisotropic carbon. That explains its increased reactivity and impaired mechanical and postreactive strength. The oxidation on storage is greatest for small coal classes (<0.5 mm). Preliminary removal of <0.5 mm oxidized coal markedly improves the reactivity and also the mechanical and postreactive strength. A method of preparing oxidized coal for coking is proposed: finer grinding (until the content of the ≤1 mm class is 100%). That considerably reduces the influence of the oxidized coal on the quality of the coke produced.
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Sobre autores
D. Miroshnichenko
Ukrainian Coal-Research Institute
Autor responsável pela correspondência
Email: dvmir79@gmail.com
Ucrânia, Kharkov, 61023
Yu. Vasilyev
Ukrainian Coal-Research Institute
Email: dvmir79@gmail.com
Ucrânia, Kharkov, 61023
Yu. Kaftan
Ukrainian Coal-Research Institute
Email: dvmir79@gmail.com
Ucrânia, Kharkov, 61023