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The gas flow distribution and gas utilization rate are improved by optimizing the charging system as well as adjusting the material layer thickness of coke and ore aiming at the long-term higher fuel ratio of 5# blast furnace of Baotou Steel; the smelting is strengthened by such measures as increasing furnace top pressure, hot air temperature and oxygen enrichment rate; meanwhile, the efficiency of tapping iron in front of furnace is improved, daily operations of blast furnace are strengthened and standard work is carried out so that the target of increasing production and reducing consumption is realized. The fuel ratio of 5# blast furnace reduced from 598.73 kg/t on average in 2020 to 556.9 kg/t, which was the best level in history.
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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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