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Taking the backfilling station for the Chifeng NFC Baiyinnuoer Mining Co. Ltd. as an example to resolve the problems of uneven bottom flow concentration and slow settling speed of tailings particles during the coagulation and settling process of total tailings, various candidate anionic polyacrylamide flocculants were subjected to tailings static coagulation and settling tests to select the most suitable flocculant type. Finally, the coagulation effect was verified through industrial experiments, and the addition parameters were optimized. The results show that the optimal flocculant type for settling the total tailings of the mine is SNF1055SH. When the concentration of the total tailings slurry is 14%, the flocculant solution concentration is 2.5‰, and the flocculant dosage is 30 g/t, it can ensure that the bottom flow mud layer of the deep cone thickener is uniform and the top overflow water is clear.
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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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