Full
Outline
To develop an environmentally friendly and economical coal gangue treatment scheme, and to achieve the goals of efficient resource utilization and environmental sustainability, the environmental problems caused by coal gangue in the Xinjie Taigemiao mining area were targeted. Through comparative analysis of various coal gangue treatment technologies, a reasonable method for gangue treatment was determined. A comprehensive filling technology scheme covering the key links of material preparation, transportation, filling and solidification was designed. The results show that the filling technology is selected as the preferred scheme for gangue treatment because of its environmental friendliness and cost-effectiveness. The high-level grouting technology is used as the preferred scheme for filling mining, and the gangue crushing storage, mixing, pumping system and pipeline system are designed. The technical system includes three processes of high-level grouting, adjacent grouting and low-level grouting, which are suitable for goafs with different conditions. The operation cost analysis shows that the proposed filling scheme is technically and economically feasible. The implementation of this scheme can significantly reduce surface subsidence, reduce environmental damage and improve the comprehensive utilization rate of resources. The scheme not only improves the safety production conditions of the mining area, but also promotes sustainable development and realizes the synergistic improvement between environmental governance and safety production.
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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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