CAJ | 학술논문

阐述了烧结工序中烧结机烟气和冷却机废气两种余热分布规律及协同回收利用原则,对立式逆流冷却机、热废气-烟气双热源余热锅炉装置、三进口余热锅炉装置及双余热源集成发电系统进行了研究,并以宝钢2号烧结余热回收系统余热源参数为基础,在烧结机烟气和冷却机废气携带热量不变的工况下,对研发的集成发电系统选定两种方案与原余热回收方案进行热经济性计算与对比分析.结果表明：双源集成发电系统两种方案的余热锅炉效率分别达到了73.4%和69.0%,发电净功率分别达到了16.40 MW和15.40 MW,研究结果可为中低品位余热高效回收装置的研发提供科学依据和技术支撑.
천술료소결공서중소결궤연기화냉각궤폐기량충여열분포규률급협동회수이용원칙,대입식역류냉각궤、열폐기-연기쌍열원여열과로장치、삼진구여열과로장치급쌍여열원집성발전계통진행료연구,병이보강2호소결여열회수계통여열원삼수위기출,재소결궤연기화냉각궤폐기휴대열량불변적공황하,대연발적집성발전계통선정량충방안여원여열회수방안진행열경제성계산여대비분석.결과표명：쌍원집성발전계통량충방안적여열과로효솔분별체도료73.4%화69.0%,발전정공솔분별체도료16.40 MW화15.40 MW,연구결과가위중저품위여열고효회수장치적연발제공과학의거화기술지탱.
By analyzing the distribution law of waste heat from both sintering and cooling machine,and the principle of collaborative heat recovery of the dual waste heat,an experimental study has been carried out on the vertical countercurrent cooler,the exhaust-gas dual-source HRSG,the three-inlet HRSG and the integrated dual waste heat power generation system.Besides,on the basis of the parameters of the No.2 sintering waste heat recovery system of Baosteel,thermal economic analysis and comparison were conducted between the two schemes of newly developed integrated power generation system and the original waste heat recovery scheme,under the condition that the heat carried by flue gas of the sintering machine and exhaust gas of the cooler keeps unchanged.Results show that the efficiency in the two schemes of the newly developed system can respectively reach 73.4% and 69%,while the generating net power respectively reaches 16.3 MW and 15.4 MW.The achievements may serve as a reference for research and development of the technology and equipment for high efficient recovery of mid/low-grade waste heat.