Full
Outline
To address the issues of large footprint and low thickening efficiency in traditional tailings thickening equipment in the mining sector，a vertical separator utilizing spiral flow channels to enhance particle migration and sedimentation is proposed for tailings concentration，aiming to improve tailings thickening performance.Using underflow concentration and overflow concentration as evaluation metrics，experimental studies were conducted to investigate the effects of flocculant dosage，flow rate，and split ratio on the separator's thickening performance.Response surface methodology （RSM） was employed to optimize the operational parameters，and further investigations were carried out to examine the impact of inlet concentration and the presence or absence of blades on separator performance.The results show that under conditions of a tailings median particle size of 13.5 μm and an inlet concentration of 20%，the optimal operational parameter combination is an inlet flow rate of 3.509 L/min，a split ratio of 0.244，and a flocculant dosage of 29.9 g/t.At these settings，the underflow concentration reached 65.46%，and the overflow concentration was 282.9 mg/L，representing a 5.76% increase in underflow concentration compared to the initial value of 59.7%.The group with blades exhibited a 19.92% higher underflow concentration （45.54%） compared to the group without blades.The findings provide insights and references for the development and application of novel compact and efficient slurry thickening equipment.
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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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