Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets
In this paper, carbon-containing pellets were prepared by using crop-derived charcoal made from agricultural residuals and iron ore concentrates, and their pelletizing performance and properties were studied. Experimental results showed that the strengths of pellets were related to the particle size...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2017/9407259 |
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| author | Zhulin Liu Xuegong Bi Zeping Gao Yayu Wang |
| author_facet | Zhulin Liu Xuegong Bi Zeping Gao Yayu Wang |
| author_sort | Zhulin Liu |
| collection | DOAJ |
| description | In this paper, carbon-containing pellets were prepared by using crop-derived charcoal made from agricultural residuals and iron ore concentrates, and their pelletizing performance and properties were studied. Experimental results showed that the strengths of pellets were related to the particle size of concentrates and the content of moisture, bentonite, and crop-derived charcoal fines in the pelletizing mixture and the temperature of roasting and reduction. That the granularity of raw materials was fine and the bentonite content increased was beneficial to the improvement of pellet strengths. The suitable molar ratio of carbon to oxygen was 1.0 and the proper proportioning ratios of moisture and binder were 8.0% and 6.5%, respectively. The pellet strengths increased accordingly with increasing the reduction temperature, and when the temperature reached 1200°C, accompanied by the fast reduction of iron and the formation of crystal stock, the dropping strength of product pellets was 15 times and the compressive strength was 1650 N; this may be improved by grinding of the concentrate, leading to acceptable strength for the blast furnace. |
| format | Article |
| id | doaj-art-264b1c25a7c146e38cba1ad786ac49b0 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-264b1c25a7c146e38cba1ad786ac49b02025-02-03T06:01:21ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422017-01-01201710.1155/2017/94072599407259Preparation and Properties of Agricultural Residuals-Iron Concentrate PelletsZhulin Liu0Xuegong Bi1Zeping Gao2Yayu Wang3School of Metallurgical and Materials Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, ChinaState Key Laboratory for Refractory Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, Hubei 430081, ChinaSchool of Metallurgical and Materials Engineering, Hunan University of Technology, Zhuzhou, Hunan 412007, ChinaState Key Laboratory for Refractory Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, Hubei 430081, ChinaIn this paper, carbon-containing pellets were prepared by using crop-derived charcoal made from agricultural residuals and iron ore concentrates, and their pelletizing performance and properties were studied. Experimental results showed that the strengths of pellets were related to the particle size of concentrates and the content of moisture, bentonite, and crop-derived charcoal fines in the pelletizing mixture and the temperature of roasting and reduction. That the granularity of raw materials was fine and the bentonite content increased was beneficial to the improvement of pellet strengths. The suitable molar ratio of carbon to oxygen was 1.0 and the proper proportioning ratios of moisture and binder were 8.0% and 6.5%, respectively. The pellet strengths increased accordingly with increasing the reduction temperature, and when the temperature reached 1200°C, accompanied by the fast reduction of iron and the formation of crystal stock, the dropping strength of product pellets was 15 times and the compressive strength was 1650 N; this may be improved by grinding of the concentrate, leading to acceptable strength for the blast furnace.http://dx.doi.org/10.1155/2017/9407259 |
| spellingShingle | Zhulin Liu Xuegong Bi Zeping Gao Yayu Wang Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets Advances in Materials Science and Engineering |
| title | Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets |
| title_full | Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets |
| title_fullStr | Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets |
| title_full_unstemmed | Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets |
| title_short | Preparation and Properties of Agricultural Residuals-Iron Concentrate Pellets |
| title_sort | preparation and properties of agricultural residuals iron concentrate pellets |
| url | http://dx.doi.org/10.1155/2017/9407259 |
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