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山西太钢回收余热反哺城市 五年供热面积增长两倍多

2017-10-12 13:22:53   

央广网山西太原10月12日消息(记者岳旭辉 通讯员黄传宝 芦文晓)“我们的空冷机组余热回收经过新一轮的改造,90%以上的乏汽都能回收了,这些回收的乏汽全部用于集中供热。”山西太原钢铁集团公司能源动力总厂30万发电机组主机作业区大班长于波高兴地告诉记者。

于波所说的乏汽是从汽轮机排出的已经做过功的蒸汽。由于乏汽的温度和压力都比较低,蕴含的能量比较小,乏汽回收一直没有引起人们的足够重视。

“空冷机组乏汽余热回收是太钢近年来实施的一个节能项目。过去,空冷机组乏汽被认为是废弃物都排掉了。如今,空冷机组乏汽余热回收工程实施后,这些废弃物就成了宝贝,每年可回收大量的热能。”太钢能源动力总厂余能业务部副部长马景源说。

这些年来,太钢通过不断的技术改造和精细管理,持续提升固态、液态和气态循环经济产业链建设水平,并加快由内部的小循环向城市和社会的大循环转变。在余热回收利用上,太钢先后突破一个个技术难关,不断提高余热回收利用水平,为持续扩大集中供热面积提供有力支撑。

太钢通过反复研究试验,成功研发高炉冲渣水无过滤全水量通过取热工艺和专用冲渣水取热设备,解决了热回收工艺平稳切换、供暖负荷配置调节等一系列世界性技术难题,为钢铁企业高炉冲渣水余热回收利用开辟了一条新途径。目前,太钢大型高炉冲渣水余热全部实现有效利用,为太原市居民冬季采暖提供了更多绿色、清洁、有效的热源。

太钢的环保技术不仅运用在自己企业的生产线,还成功技术输出,成为新的效益增长点,目前,国内几家钢铁企业以使用这一技术。

除高炉冲渣水余热回收外,太钢还通过技术创新和推广应用节能环保、综合利用方面的先进成熟技术,推进节能工作向纵深发展,成功实施烧结主抽风机变频改造、转炉煤气供发电锅炉、电炉余热回收项目、烧结系统余热回收、CDQ南区空冷机组乏汽回收等一批节能环保项目,建立起全流程节能减排模式,不断完善气态循环经济产业链。

近五年来,太钢余热回收1800万吉焦,比五年前翻了一番,为城市提供的集中供热面积增长两倍多,成为太原市重要的热源生产厂。

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