梅钢烧结绿色低碳技术实践  

Practice of green and low carbon sintering technology in Meigang

作　　者：陈景明[1] Chen Jingming(Shanghai Mei shan Iron and Steel Co.,Ltd.)

机构地区：[1]上海梅山钢铁股份有限公司

出　　处：《冶金能源》2023年第5期17-20,共4页Energy For Metallurgical Industry

摘　　要：梅钢通过极限挖掘余能回收、环冷水密封改造锁住烧结矿显热;高温回收段采用翅片陶瓷覆膜、换热锅炉采用声波清灰、高效锅炉换热结构改进等技术,实现烧结工序热量高效转换;低温段采用饱和螺杆发电组、热水换热,实现烧结矿低温余热应收尽收工业效果。同时大力应用主抽风机变频、高效风机、微负压点火改造、原料筛分改造等一些列先进节能降碳技术,前沿布局一批FeO自动检测技术、生石灰预消化技术、烧结料面喷洒水蒸气技术等节能低碳技术,实现吨矿蒸汽回收量95.7 kg/t、烧结漏风率从25%降至5%以下。Meigang locked the sensible heat of sinter through the recovery of surplus energy from extreme excavation and the transformation of annular cooling water sealing.Fin ceramic coating was used in the high temperature recovery section,sonic ash removal was used in the heat exchange boiler,and the improvement of the heat exchange structure of the high-efficiency boiler was used to realize the efficient heat transfer in the sintering process.In the low temperature section,the saturated screw power generation combined with hot water heat exchange is used to realize the industrial effect of collecting the low-temperature waste heat of sinter.At the same time,a series of energy-saving and carbon reduction technologies,such as frequency conversion of main exhaust fan,high-efficiency fan,micro negative pressure ignition transformation,raw material screening transformation,are vigorously applied.FeO automatic detection technology,quicklime pre digestion technology,sinter material surface spraying steam and other technologies are arranged in the forefront to achieve the effect of 95.7 kg/t steam recovery per ton of ore,sintering air leakage rate from 25%to below 5%.

关 键 词：环冷水密封 螺杆发电机 烟气全循环 

分 类 号：TF046.4[冶金工程—冶金物理化学]