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Outline
The pre-concentration and tailings discarding technique was adopted in the processing of vanadium-titanium magnetite in Panxi region. Based on analysis and summarization, it is found that the ores in the Baima Mine belongs to low TiO2-grade vanadium-titanium magnetite, and pre-concentration and tailings discarding process can be adopted. As for pre-concentration, medium-intensity magnetic separator (MIMS) is suitable for discarding larger lumps (-300 mm), a process of roughing with MIMS combined with scavenging with MIMS is suitable for discarding small lumps (-40 mm), and wet high-intensity magnetic separator is suitable for discarding coarser-grained ore (-12 mm or-5 mm). As a result, the TiO2 grade of final discarded tailings can be finally controlled within 2.5%. However, the vanadium-titanium magnetite in Panzhihua, Hongge and Taihe mines have a high grade of titanium, for which it is appropriate to adopt the above-mentioned processes for pre-concentration and discarding of small lump (-25 mm) ores and coarser-grained ores. And after classification of the tailings, the finer fraction is sent for titanium separation, leading to the TiO2 grade of the final discarded tailings within 3.5%. It is shown that the above-mentioned processing technique and flowchart can greatly discard qualified tailings, which can provide a reference for development and utilization of similar resources.
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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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