干熄焦技术在节能减排中的作用与地位

Role and position of CDQ technology in energy-saving and discharge reduction

结合国内具有代表性的4套干熄焦装置的运行实际,从测试方法与手段、能量利用效率、系统综合评价等方面对干熄焦系统进行了研究,焦炭含水量降低4%左右时,M40提高3%～4%,M10下降1%左右;热态性能提高时,反应性下降5%,反应后强度提高5%左右。与湿熄焦炭相比,干熄焦炭的真密度略有提高,焦炭光学组织中各向异性程度增强,各向异性指数平均提高1.1%,气孔率低7.8%。探讨了国内干熄焦技术的发展方向以及在节能减排中的作用与地位。

In combination with actual operation conditions of 4 sets of CDQ systems which have representativeness domestically, the.CDQ systems are studied from the aspects of measuring method and means, energy utilization efficiency, comprehensive evaluation of the systems and so on. When coke moisture content is reduced by about 4%, M40 is raised by 3%-4% and M10 is lowered by 1%; when the hot state property is raised, reactivity index is reduced by 5% and coke strength after reaction is enhanced by about 5%. In comparison with wet quenched coke, the true density of dry quenched coke has increased slightly, the anisotropic degree in coke optical contexture is strengthened, the anisotropic index is raised by 1.1% in average and porosity is lowered by 7.8%. The technology developing direction of domestic CDQ system and role and position of CDQ technology in energy-saving and discharge reduction are discussed.