环冷机零排放技术及低温热废气的再利用方法  

Circular Cooler zero-emission technology and recycling method of low-temperature hot exhaust gas

作　　者：景涛[1,2] JING Tao(Zhongye changtian International Engineering Co.,Ltd.,Changsha 410205,China;School of Resources Processing and Bioengineering,Central South University,Changsha,410083,China)

机构地区：[1]中冶长天国际工程有限责任公司,湖南长沙410205 [2]中南大学资源加工与生物工程学院,湖南长沙410083

出　　处：《世界有色金属》2022年第1期170-172,共3页World Nonferrous Metals

基　　金：湖南省科技成果转化及产业化计划(2020GK4055)。

摘　　要：结工序余热资源利用率低,主要原因在于环冷机产生大量低于300℃的低温热废气难回收。本文介绍了三烧结采用的环冷机零排放技术,以及目前国内冶金企业为循环利用环冷机低温热废气所采用的热风烧结、热风点火、烟气循环、火车解冻库辅助热源和烘干块矿五种方法和途径,为冶金企业实现节能减排、增产提质提供参考。The main reason is that the waste heat recovery rate of the low-temperature sintering process is lower than 300℃,which is mainly due to the low waste heat recovery rate of the cold ring.This paper introduces the zero emission technology of ring cooler used in three sintering,as well as the five methods and ways of hot air sintering,hot air ignition,flue gas circulation,auxiliary heat source of train thawing warehouse and drying lump ore used by domestic metallurgical enterprises to recycle the low-temperature hot waste gas of ring cooler,so as to provide reference for metallurgical enterprises to realize energy conservation and emission reduction,increase production and improve quality.

关 键 词：低温热废气 零排放 热风烧结 热风点火 烟气循环 辅助热源 烘干块矿 

分 类 号：TF046.4[冶金工程—冶金物理化学]