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| Emission behavior of fine particulate matter #br# during iron ore sintering process |
| MU Gutian1，CHUN Tiejun1，ZHU Mengfei1，WANG Zhen1，LONG Hongming1,2 |
(1. School of Metallurgical Engineering, Anhui University of Technology, Ma′anshan 243002, Anhui, China；
2. Key Laboratory of Metallurgical Emission Reduction and Resources Recycling, Ministry of Education,
Anhui University of Technology, Ma′anshan 243002, Anhui, China) |
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Abstract The online detection and sampling of the fine particulate matter in the iron ore sintering process were carried out by the ELPI+ equipment. The morphology of the collected particles was analyzed by a field emission scanning electron microscopy (FESEMEDS) to study the emission behavior of the fine particulate matter during iron ore sintering. The results show that the mass release of PM10 is concentrated in the sintering temperature rising section, and the mass concentration and the number concentration of the particulate matter are quite different in the particle size distribution. The peak concentration range of the mass concentration is 5.37～10.00 μm, and the peak range of the number concentration is 0.10～0.16 μm. In terms of appearance, PM2.5 has regular spherical, square and flake shape. The composition of different particle sizes is obviously different, the K and Na in the particles mainly exist in the form of KCl and NaCl, and its content decreases slightly as the size of particulate matter increasing.
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