大型变压吸附制氧装置在钢铁行业中的应用  

THE APPLICATION OF LARGE-SCALE PRESSURE SWING ADSORPTION OXYGEN PRODUCTION EQUIPMENT IN THE STEEL INDUSTRY

作　　者：单毅 Shan Yi(Beijing Peking University Pioneer Technology Co.,Ltd.,Beijing 100088)

机构地区：[1]北京北大先锋科技股份有限公司,北京100088

出　　处：《河北冶金》2024年第5期76-79,共4页Hebei Metallurgy

摘　　要：随着国家“双碳”目标的逐步推进,各大钢企在碳减排和节能方面进行了多方探索。能耗占比最大的高炉炼铁工艺成为钢铁行业被重点关注的对象。相关研究表明,提高富氧率既可以降低高炉炼铁的燃料消耗和节约成本,还可以提升冶炼强度进而增加效益,而氧气单价是制约高炉富氧实施的重要因素。变压吸附制氧装置在常温常压下运行,安全系数更高;工艺流程仅相当于深冷的空压机和分子筛两个工段;使用常规机电设备且数量少,且维护简便、快捷。该装置可以避免将空分的高压高纯氧气用于高炉时造成的质量、能量浪费以及供氧不稳定性的缺点,更有利于钢企全系统的节能降耗,符合“双碳”目标的要求。介绍了变压吸附制氧装置为满足高炉富氧的大用氧量的使用需求,从轴向床转变为径向床,从两塔工艺发展成为新的四塔工艺,并逐步提高最大产能和自动化程度的发展过程。同时指出,大型变压吸附制氧装置以产能更大、操作维护更容易、节能更优和环境友好等优势必将更广泛地成为高炉的富氧来源。With the gradual promotion of the national"dual carbon"goal,major steel enterprises have conducted multiple explorations in carbon reduction and energy conservation.The blast furnace ironmaking process,which accounts for the largest proportion of energy consumption,has become a key focus of attention in the steel industry.Related studies have shown that increasing the oxygen enrichment rate can not only reduce fuel consumption and save costs in blast furnace ironmaking,but also enhance smelting intensity and increase efficiency.The unit price of oxygen is an important factor restricting the implementation of oxygen enrichment in blast furnaces.The pressure swing adsorption oxygen production device operates at normal temperature and pressure,with a higher safety factor;The process flow is only equivalent to two sections of cryogenic air compressor and molecular sieve;Using conventional electromechanical equipment with a small quantity,easy and fast maintenance.This device can avoid the drawbacks of quality,energy waste,and unstable oxygen supply caused by using high-pressure and high-purity oxygen from air separation for blast furnaces,and is more conducive to energy conservation and consumption reduction of the entire system of steel enterprises,meeting the requirements of the"dual carbon"goal.This article introduces the development process of the pressure swing adsorption oxygen production device,which has transformed from an axial bed to a radial bed,developed from a two tower process to a new four tower process,and gradually improved the maximum production capacity and automation level to meet the demand for high oxygen consumption in blast furnaces.At the same time,it is pointed out that large-scale pressure swing adsorption oxygen production equipment will become a more widespread source of oxygen enrichment for blast furnaces due to its advantages such as larger production capacity,easier operation and maintenance,better energy conservation,and environmental friendliness.

关 键 词：变压吸附制氧 高炉 富氧 四塔 碳减排 节能 

分 类 号：TQ116.14[化学工程—无机化工]