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In this paper, the effects of optimizing structure of coal as fired on metallurgical performances of coke are systematically studied by adding XN fat coal and SX coking coal S1.3 based on the coal as fired of coke oven in a company aiming at the strict requirements of coke quality for blast furnace ironmaking. The experimental results showed that the coke strength after reaction (CSR) and mechanical strength (M40) could be significantly improved with both scheme 1 and 2, thereinto, CSR was increased by 7.7 percentage point, M40 was increased by 6.4 percentage point as well as proportion of large and medium coke size was increased by 7.64 percentage point with scheme 2 compared with those of basic scheme. This study provides theoretical and practical basis for industrial coal blending optimization.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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