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In this paper, the influences of super-thick material layer on sintering process indexes as well as productivity and quality of sinter based on the iron material configuration condition that high proportion of iron concentrate of sintering of Baotou Steel are mainly elaborated. The study results showed that the FeO content of sinter could be significantly reduced by increasing thickness of sintering material layer, the thickness of material layer was increased from 700 mm to 1 000 mm and the FeO content of sinter was decreased by 1.39 percentage points, or 14.2%. The solid fuel consumption of sintering could be effectively reduced, yield and drum strength of sinter could be improved by increasing the thickness of sintering material layer. In this paper, such indexes as the fuel consumption, yield, drum strength, RI and RDI+3.15 mm of sinter tend to be increased then decreased with the thickness of material layer increases as well as they are optimal when the thickness of material layer is 800 mm, which shows that the suitable thickness of material layer is 800 mm with the iron material configuration condition of 20% Barun iron concentrate+20% Mongolian iron concentrate+60% imported iron ore powder.
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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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