E3S Web Conf.
Volume 204, 20202020 International Conference of Recent Trends in Environmental Sustainability and Green Technologies (ICRTEG 2020)
|Number of page(s)||7|
|Section||Natural Resources and Environmental Science|
|Published online||03 November 2020|
Study on the Influence of mixed burning Sludge on slagging characteristics of easily slagging Coal
1 Shandong Electric Power Research Institute, Jinan 250002, China
2 Stat Grid Shandong Electric Power Research Institute, Jinan 250002, China
* Corresponding author
In this paper, combined with experiments and theoretical calculations, the effect of urban low-calorific value sludge on the slagging characteristics of easy-slagging coals is studied. The results show that when the melting point of sludge ash is lower than that of coal ash, the ash melting point of the mixture after the two blends will be lower than the melting point of raw coal ash. When SiO2 and Al2O3, which are relatively high in sludge, are used as single additives, the ash melting point of coal will first decrease and then increase. As the mixing ratio of sludge increases, coal ash slagging characteristics show a trend of gradual relief. For coals that are prone to slagging and rich in alkali metals, they can be appropriately mixed with sludge rich in silicon and aluminum compounds or additives to improve Slagging characteristics.
Key words: Mixed burning sludge / Ash melting point / Slagging characteristics
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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