焦炉煤气强化烧结技术在梅钢的应用  

Application of intensified sintering technology with COG in Meisteel

作　　者：李和平[1] 聂慧远[1] 韩凤光[1] 谭培龙[1] 邱海雨[1] 田丰[1] 沈小峰[1] 

机构地区：[1]上海梅山钢铁股份有限公司,江苏南京210039

出　　处：《烧结球团》2015年第6期1-3,35,共4页Sintering and Pelletizing

摘　　要：控制烧结料层的最高温度及合适的温度区间对烧结生产和烧结矿质量至关重要。向烧结料层喷入可燃气体，料层的最高温度并不会升高，反而延长了料层中1200～1400℃温度区间的持续时间，从而提高了烧结矿的强度和还原性。梅钢试验研究及生产实践均证明了喷吹可燃气体技术的可行性。梅钢3号烧结机自2014年采用喷吹COG强化烧结技术以来，烧结过程均匀性得到改善，烧结矿转鼓指数、粒径、还原性等指标大幅度提高，有利于高炉冶炼；同时，采用该技术后，减少了烧结固体燃料配入量，降低了烧结过程C02的排放。Controlling the highest temperature and the suitable temperature range of the sintering material bed is critical for sintering process and sinter quality. Injecting the combustible gases to the sintering material bed will not lead to the rise of the maximum temperature of the material bed but will extend the duration of 1 200 - 1 400℃, thus the sinter strength and reducibili- ty are improved. Meisteel test study and production practice prove the feasibility of combustible gas injection technology. Since the adoption of intensified technology with COG injection in Meisteel No. 3 sinter machine in year 2004 ,the sintering process uni- formity has been improved, such indexes as sinter tumbler index, grain size, reducibility etc. have been increased substantially, which is favorable for blast furnace operation. After the adoption of the technology, the sintering solid fuel proportion is decreased and CO2 emission in sintering process is also reduced.

关 键 词：焦炉煤气 强化烧结 生产应用 

分 类 号：TF046.4[冶金工程—冶金物理化学]