Full
Outline
As the core technology of green mining in metal mines, unclassified tailings paste backfill technology plays an irreplaceable role in the coordinated development of mineral resource exploitation and ecological environment protection. A systematic review of research literature on unclassified tailings paste backfill technology at home and abroad was conducted, and the research progress was summarized from multiple dimensions such as technological development history, paste thickening and preparation, pipeline transportation, and engineering application cases. Research shows that the research on backfill technology at home and abroad has gone through four evolutionary stages: dry backfill, hydraulic backfill, cemented backfill, and paste backfill. Currently, paste backfill technology is developing rapidly in the direction of "high concentration, large flow rate, intelligentization, and green development". The core achievements of the complete technology system for paste backfill were systematically discussed, including the low-energy flocculation of tailings slurry synergistic with high-concentration stable sand discharge technology, the high-quality preparation of multi-component material paste synergistic with reliable transportation technology, the pressure-regulated paste transportation and backfill safety control technology in ultra-deep shafts, as well as the independent research and development progress of key backfill equipment such as paste storage thickeners, high-speed flexible mixers, and cone-valve industrial backfill pumps. Through engineering cases such as the Shizhuyuan polymetallic mine, the successful application effects of the technology and equipment in different mines were demonstrated. Combined with current technological research and future development trends, the development path of paste backfill technology towards deep underground and green development was prospected, aiming to provide technical reference and decision-making support for the green and low-carbon transition of the mining industry in China.
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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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