DS-SO2烟气治理技术的工程应用

采用DS—SO2烟气治理技术处理冶炼烟气,烟气处理效果良好,脱硫率可达98％以上,处理后烟气中SO2浓度远远低于《工业炉窑大气污染物排放标准》（GB9078—1996）二级标准。     

高炉环境治理技术的研究与应用

<正>按照大气污染物排放浓度设计按照《工业炉窑大气污染物排放标准》(GB9078-1996)执行,即颗粒物排放标准为50mg/m3,无法满足当下钢铁工业大气污染物排放标准（山东省地方标准,DB37/990/-2019）。在新高炉投产前,如何在空间受限、投资受限的条件下,降低粉尘产生量,提高除尘效率,将有组织排放颗粒物浓度降低到10mg/m3以下,确保高炉生产流程满足环保法规要求,是分公司炼铁系统必须解决的一大难题。     

工业炉SO2,NOx测试的研究

一、概况随着世界经济不断发展,工业生产能力增长,污染物的排放量也随之迅猛增长,工业污染对人类生活的危害也随之加重,气体污染物是主要污染物之一。工业炉窑排烟中     

焦炉的热态修理技术

对焦炉的热态修理技术进行了分析。针对国内工业炉窑的维修状况,结合宝钢一体化的进程,提出了专业化集中维修工业炉窑的思路。     

我国工业炉窑环境保护治理研究

以工业炉窑的环境保护治理问题为基础,结合当前我国社会发展的实际情况,对工业炉窑对环境产生的影响进行分析,并提出科学合理的治理策略,以促使工业炉窑能够顺利实现转型升级改造,最终实现工业发展与环境保护二者之间的有效平衡。     

新一代燃烧技术——多孔介质燃烧

工业炉窑是把能源转化为热能并加以利用的装置,在冶金、机械、石化、建材等众多工业行业内应用广泛。燃烧器（烧嘴）是工业炉窑中主要设备。传统的燃烧器存在热效率不高、污染物排放量大、容易造成环境污染、难以实现精确控制等问题,使大量能源被白白浪费的同时污染了环境。     

蓄热除尘技术在工业炉窑上的应用

解决工业炉窑上烟气的余热利用和排烟污染问题,设计了一套具有节能、无污染排放功能的环保设备,采用蓄热装置预热空气,布袋除尘消除黑烟排放。     

现代化间断式工业炉窑的发展

对近十年来国内外间断式工业炉窑的发展进行了较为深入地研究，针对目前国内同类炉子所存在的问题，结合20多年来在设计和研究中所总结的经验，提出了解决国内间断式工业炉窑通病的技术措施，以及今后开发和研究的方向。     

几种低浓度S0ν2烟气脱硫技术的比较

有色冶炼企业炉窑装置通常会产生低浓度的S0ν2烟气。近年来,国家对S0ν2的排放标准日益严格。在此趋势下,烟气制酸尾气、各种工业炉窑排放的低浓度SOν2：污染源会逐渐成为影响企业发展的重要因素。本文介绍了几种目前在有色冶炼行业逐步得到推广应用的低浓度SOν2：烟气脱硫;争化技术,并对这几种脱硫方法的技术指标进行比较,以供企业根据自身的主生产工艺条件进行选择和参考。     

工业炉窑的环境污染治理探讨

简要介绍了工业炉窑的污染物防治方法，从炉内治理和炉外治理两方面分析、探讨了防止环境污染的有效措施。     

我国工业炉窑NOx治理的思考

我国工业炉窑NOx排放量已达到世界第一位,NOx主要来自燃料的燃烧.介绍了影响工业炉窑NOx生成的因素;工业炉窑与工业锅炉、电站锅炉脱硝方式的区别;并介绍了几种工业炉窑NOx的治理方法.     

Characterization of Process Conditions in Industrial Stainless Steelmaking Electric Arc Furnace Using Optical Emission Spectrum Measurements

Emission spectroscopy is a potential method for gaining information on electric arc furnace (EAF) process conditions. Previous studies published in literature on industrial EAF emission spectra have focused on a smaller scales and DC arc furnaces. In this study emission spectrum measurements were conducted for 140t AC stainless steelmaking EAF at Outokumpu Stainless Oy, Tornio Works, Finland. Four basic types of emission spectra were obtained during the EAF process cycle. The first one is obscured by scrap steel, the second is dominated by thermal radiation of the slag, the third is dominated by alkali peaks and sodium D-lines and the fourth is characterized by multiple atomic emission peaks. The atomic emission peaks were identified by comparing them to the NIST database for atomic emission lines and previous laboratory measurements on EAF slag emission spectra. The comparison shows that the optic emission of an arc is dominated by slag components. Plasma conditions were analyzed by deriving plasma temperature from optical emissions of Ca I lines. The analysis suggests that accurate information on plasma conditions can be gained from outer plasma having a plasma temperature below 7000 K (6727 °C).     

中国钢铁行业超低排放之路

随着中国钢铁行业超低排放的不断深入,钢铁行业的深度治理迫在眉睫。在对几种传统的多污染物控制技术进行综述的基础上,对“基于镁法的多污染物协同去除技术”、“烟气多污染物集并吸附脱除技术”、“多污染物中低温协同催化净化技术”以及“烧结烟气循环技术”四种新型钢铁行业超低排放技术进行了总结,同时阐述了钢铁行业超低排放的必要性、难点以及推动超低排放的合理化建议,并对下一步深化钢铁行业超低排放进行展望（源头治理）。有利于推动和促进钢铁行业多工序多污染物协同控制和治理。      

冶金过程中有机污染物二(口,恶)英的形成机理与监测

钢铁工业所造成的环境污染已成为制约其发展的重要因素之一.其中有机污染物主要来自废钢回收的电弧炉冶炼过程.本文对冶金过程所产生的主要有机污染物--二噁英的产生行为,产生机理,分析方法,如气相色谱法、气相色谱质谱联用法、各种离子化方式的飞行时间质谱法等以及近几年国内外的研究进展进行了较全面的综述,并对有机污染物的在线监测技术进行了展望.     

高温熔炉消烟除尘治理的研究

高温熔炉产生烟尘的组成、污染物的组成特点,烟尘设计治理的原理,工艺治理的流程、集烟罩的作用、导流屏的辅助性、治理的主要技术参数,采用活动门提高集烟效果的新方法,利用气箱高压脉冲袋式除尘器治理后,达到排放标准,改善作业环境,满足环境法律法规的要求。     

中国钢铁工业空气污染物排放现状及趋势

 目前中国粗钢产量已经占世界总产量的一半以上,中国钢铁工业的发展对世界意义重大。中国钢铁工业主要采用以煤炭为主要燃料的“高炉-转炉”长流程冶炼工艺,因此在钢铁生产过程中排放出大量的空气污染物,主要包括二氧化硫(SO₂)、氮氧化物(NO_x)和颗粒物(PM_2.5)等。从钢铁工业污染物的来源、污染物的排放总量变化情况、不同冶炼工序污染物排放特点、中国钢铁工业污染物排放量地域分布特点以及不同规模的钢铁企业污染物排放特点等多角度综述了近年来中国钢铁工业的空气污染物排放现状。同时简要综述了中国钢铁工业为治理空气污染物而进行的超低排放改造进展情况,据此提出了中国钢铁工业空气污染物治理存在的问题,并分析了未来中国钢铁工业空气污染物排放及减排趋势。     

Application of the triad of blast furnace,oxygen converter,and electric arc furnace for reducing of carbon footprint

Carbon footprint is the mass of carbon formed in the full cycle of manufacturing one kind or another product. This carbon is included in greenhouse gases. During production of iron and steel are generated carbon monoxide and greenhouse gases: methane, and carbon dioxide. Methane and carbon monoxide burn to carbon dioxide by secondary energy resources. By this means, the carbon footprint by the production of iron and steel has determined by the weight of carbon dioxide formed in this production. As results of analysis of the processes of manufacture of iron and steel, it has revealed that the tandem of blast furnace with electric arc furnace is characterized by a lower value of integrated emissions of CO₂ than the tandem of blast furnace with an oxygen converter. It was proposed to process of the cast iron made by one blast furnace, then in the oxygen converter, and, at last, in one or more electric arc furnaces. Moreover, the electric arc furnace is loaded by 30% of iron produced in blast furnace, and the remaining 70% are complemented by metal scrap. In the oxygen converter is loaded, the part of cast iron (75–85%), that remained after processing in the arc furnace. The converter is applied the metal scrap for full loading. Calculations of total emission of carbon dioxide for different triads of these units are made. Simultaneous use of oxygen converter with electric arc furnaces for cast iron smelting (obtained from one blast furnace) helps to reduce reliably the emission of carbon dioxide to 20% as it is follows from these calculations. This suggests that such a triad of used units conforms to green technology. Example of the use of mentioned triad is for a full load of the converter applied to metal scrap. The calculations total emissions of carbon dioxide for different triads of these units were performed. From these calculations it follows that the simultaneous use of oxygen converters after electric arc furnaces for smelting iron (obtained from one blast furnace), it helps to reduce the emission of carbon dioxide to 20%. This suggests that this triad of used units conforms to green technology. An example of using this triad is in the Magnitogorsk Iron and Steel Works, where along with the oxygen converter, electric arc furnaces with the use of locally produced electricity at burning fuel of secondary energy resources from units, in which the fuel is burnt. This practice can be recommended for a number of other metallurgical enterprises.     

晋南钢铁高炉喷吹富氢气体工业化实践

 钢铁工业是中国制造业中碳排放量最高的行业,碳排放占全国碳排放总量的15%左右。高炉是钢铁工业碳消耗量最大的工序,碳消耗占钢铁流程总碳消耗的70%以上,减少高炉冶炼碳消耗是降低钢铁工业碳排放的最有效措施。高炉喷吹富氢气体不但可以提高冶炼效率,减少污染物排放,而且可以减少焦炭或煤粉消耗,从源头上降低高炉冶炼碳消耗,从而减少碳排放。以山西晋南钢铁两座1 860 m3高炉风口喷吹富氢气体工业化生产数据为例,详细研究了高炉喷吹富氢气体对燃料比、风口理论燃烧温度、炉腹煤气量、H₂利用率以及CO₂排放量的影响。结果表明,喷吹富氢气体可以显著降低高炉固体燃料消耗,在吨铁富氢气体喷吹量为65 m3条件下,富氢气体与固体燃料的置换比为0.49 kg/m3;风口喷吹富氢气体降低了风口理论燃烧温度,吨铁每喷吹1 m3富氢气体,风口理论燃烧温度降低约1.5 ℃,高炉鼓风量和炉腹煤气量都少量降低;喷吹富氢气体以后,炉内H₂的利用率平均为37.3%,CO的利用率约为43.2%;吨铁CO₂排放量可以降低80 kg左右,高炉CO₂排放降低了5.6%,取得了较好的经济、环境和减污降碳效果。     

绿色化工技术在精细化工中的应用研究

社会经济快速发展,科学技术不断进步,针对我国现代工业化工行业发展,所产生的新型化工技术应用,促进我国化工生产效率的提升。工业的发展不可避免地会带来污染物的产生,如果不能有效控制化工排放污染物,温室效应问题会更加严重。本文对绿色化工技术在精细化工中的有效应用进行研究,降低工业废气污染物排放量,维护生态环境平衡。     

Application and practice of ceramic fiber block technology in industrial furnaces

Ceramic fiber,a kind of furnace lining material,is widely utilized in industrial furnaces.Fiber blocks can be made into various shapes.They have advantages of low thermal conductivity,low density and light weight for the development of industrial furnaces.This paper,taking a continuous annealing furnace as an example,describes the application of ceramic fiber blocks in the furnace and the installation methods.The temperatures of the furnace wall with different linings are analyzed.In the furnace design or the renovation of the existing furnaces,lining with ceramic fiber blocks is the preferred solution.