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通过对晋城无烟煤集团下属寺河煤矿矿区实地调研,分析了寺河矿热源特点,计算了各资源余热量,并提出了综合矿井余热利用系统。研究表明:采用三级喷淋水除尘吸热后,矿井排风余热利用率为40%~50%;以R134a为冷剂工质,以矿井排水、生活废水和矿井乏风换热后的喷淋水的混合水为低温热源的矿井水源热泵的COP可达4.07;喷淋室出口的矿井乏风可作为空气源热泵的低温热源;该矿井余热资源能够替代3台10 t/h燃煤热水锅炉的热量,显著减少燃煤污染物排放。
Through the field investigation of the Sihe Coal Mine in Jincheng anthracite group, the characteristics of the heat source in Sihe Mine were analyzed, the residual heat of each resource was calculated, and a comprehensive utilization system of mine waste heat was put forward. The results show that: after the three spray water is used for dedusting and absorbing heat, the mine exhaust air heat utilization rate is 40% ~ 50%; the spray of R134a is used as the refrigerant working fluid, after the mine drainage, domestic wastewater and mine leeway heat exchange The COP of mine water source heat pump with mixed water with low temperature and heat source is up to 4.07. The mine leeway at the outlet of spray booth can be used as the low temperature heat source of air source heat pump. The waste heat resource of mine can replace 3 sets of 10 t / h coal-fired heat Water boiler heat, significantly reducing coal-fired pollutant emissions.