Abstract
The ballability of hematite ore with addition of a certain amount of pulverized anthracite and the induration features of anthracite–containing hematite pellets were studied. The results indicate that adding a certain proportion of anthracite can improve the quality of green pellets as well as the roasting performance of roasted pellets. The suitable mass dosage of anthracite is 1.0%–1.5%. Under the conditions of roasting temperature 1280 °C–1350 °C and roasting time 15 min–20 min, the compressive strength of roasted pellets is found to be more than 2500 N/P. Compared with hematite pellets in the absence of anthracite, the proper induration temperature is diminished by 20 °C, whereas optimal induration temperature range expands by 50 °C, and induration time is shortened by 5 min–10 min. Adding anthracite is an effective measure to improve the pelletization of hematite.
Supported by the New Century Excellent Talents in University (NCET-11-0515)
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© 2015 TMS (The Minerals, Metals & Materials Society)
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Tang, Z., Rao, M., Zhang, Y., Li, G. (2015). Effects of Anthracite on Pelletization of Hematite Ore. In: Battle, T.P., et al. Drying, Roasting, and Calcining of Minerals. Springer, Cham. https://doi.org/10.1007/978-3-319-48245-3_28
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DOI: https://doi.org/10.1007/978-3-319-48245-3_28
Publisher Name: Springer, Cham
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