【摘要】 以无烟煤煤末为主要原料,制备了高强度的民用型焦;研究了黏结剂配比和炭化温度对型焦抗压强度、燃烧性能和污染物排放特性的影响规律;通过扫描电子显微镜（SEM）观察了型焦结构的变化;利用热质联用仪（TG-MS）测试了型焦的燃烧性能和污染物排放特性。结果表明:实验条件下黏结剂的最佳配比为4%（质量分数,下同）腐植酸钠、2%羧甲基纤维素钠、2%沥青。随着炭化温度的升高,型焦的抗压强度和发热量不断提高,可燃性、燃尽特性和综合燃烧特性不断变差。燃烧时NO的释放量随着炭化温度的升高先减小后增大,炭化温度为700℃时,型焦燃烧NO的释放量最低。SO₂的释放量随着炭化温度的升高不断增加,炭化温度为600℃时,型焦燃烧SO₂的释放量最低。更多还原

【Abstract】 Civilian formed coke with high strength was prepared using anthracite powder as the main raw material.The effects of binder addition and carbonization temperature on the mechanical strength,combustion performance and pollutant emission characteristics of the coke were studied.The scanning electron microscopy（SEM）was adopted to analyze the change of the coke microstructure,and the combustion performance and pollutant emission characteristics of the coke were measured by thermogravimetry-mass spectrum（TG-MS）analysis.The results show that the optimal proportion of the binder is 4%（mass fraction,the same below）of sodium humate,2% of sodium carboxymethyl cellulose and 2% of asphalt.With the increase of the carbonization temperature,the mechanical strength and the calorific value of the coke are continuously increasing,and the flammability,the burn-out characteristics and the comprehensive combustion characteristics get worse.The amount of NO release while combustion decreases first and then increases with the increasing carbonization temperature.The coke at carbonization temperature of 700℃ has the lowest emission of NO.The emission of SO₂ increases with the increase of carbonization temperature,and the coke at carbonization temperature of 600 ℃ has the lowest emission of SO₂.更多还原