| Coal gangue is the largest industrial solid waste in China. Gangue not only takes up a lot of valuable land, but also caused environmental pollution. However, coal gangue can also be used as resource. It is an important issue for the sustainable development of coal mine.Xiandewang mine is located in Xingtai City. In recent years, environmental pollution problems highlighted, especially air quality, municipal government of coal gangue governance also attaches great importance to. Xiandewang mine commonly used coal gangue utilization scheme of coal gangue brick, coal gangue, coal gangue subgrade etc.. Introduces the specific methods commonly used by mine.How to choose these programs to maximize the comprehensive benefits of the mining area, is the most important content of the study. Combination of Xiandewang Coal Gangue utilization of practical experience, according to the combination of qualitative analysis and quantitative analysis method, to coal gangue utilization scheme were used to appraise the comprehensive benefits of. Through the comparison of several evaluation methods, the fuzzy evaluation method is selected to carry on the comprehensive evaluation. In this paper, several Xiandewang mine coal gangue used as the research object using fuzzy comprehensive evaluation. According to the priority of the calculation, the optimal utilization of coal gangue is selected. |
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