济钢1750m^3高炉煤气干法湿法除尘工艺比较

从工艺过程、动力消耗、TRT发电量、物料消耗、煤气质量等方面,对济钢1750m3高炉煤气下法除尘与湿法除尘的进行了比较分析,结果表明干法除尘的技术经济性均优于湿法除尘.     

攀钢钒一期高炉煤气全干式除尘技术应用与实践

介绍了攀钢钒一期高炉煤气全干式除尘工艺原理、主要设备及关键技术,同时对运行过程中存在的问题进行了分析,通过采取检测高炉荒煤气含水量和瓦斯灰Zn含量、优化除尘筒体运行方式和反吹清灰模型等措施,有效减轻了高炉荒煤气管道堵塞和煤气设备腐蚀问题,延长了干式除尘布袋使用周期,确保一期高炉煤气除尘的稳定运行。     

转炉煤气半干法除尘系统工艺

介绍了一种新的转炉煤气净化工艺——半干法除尘系统。以实际生产中120 t转炉为例,将半干法除尘工艺与传统的湿法除尘工艺、干法除尘工艺进行了详细的经济效益比较,得出结论:半干法除尘工艺是一项值得大力推广的切实可行的技术。     

天铁6号高炉煤气干法布袋除尘工艺设计

对天铁6号高炉煤气干法布袋除尘工艺设计进行了总结,认为该工艺处理的高炉煤气含尘量少、温度高,可大幅增加余压煤气发电量,处理过程基本不消耗水,并指出了需要改进的技术及设备选型.     

济钢1750m^3高炉煤气干、湿法除尘比较

济钢1750m3高炉煤气干法除尘与湿法洗涤系统在工艺过程、动力消耗、TRT发电量、物料消耗、煤气质量等方面进行了比较分析,表明干法除尘具有节水、节电、减污、可靠性好的工艺特点,更具有加强能源回收,提高发电量,提高煤气热值,减少占地面积,保护环境的经济效益、社会效益和环境效益。     

燃气厂“高炉煤气干法除尘装置与工艺”技术在国内大型高炉首次成功应用

正2004年,包钢燃气厂在总结和吸收国内中、小型高炉煤气干法除尘工艺技术应用经验的基础上,开发出全新的干法布袋除尘工艺技术,并成功应用于包钢2200M3的4#高炉煤气净化除尘工艺中。新干法除尘系统于2006年4月建成投产后,又推广到包钢其它5座高     

八钢380m^3高炉煤气除尘系统调查分析

八一钢铁公司炼铁分公司高炉分厂共有380m^3高炉6座,0^#-4^#高炉的煤气除尘采用湿法除尘工艺,高炉产生的荒煤气通过重力除尘、一二文串联除尘,然后汇总到半净煤气总管再进入三座电除尘塔进行精除尘,成为净煤气,向各个用户输送。5^#高炉的煤气除尘采用干法布袋除尘工艺。     

高炉煤气干法滤袋除尘工艺及主要设备的改进

高炉煤气干法滤袋除尘工艺在中小型高炉煤气净化系统中被广泛应用并在实践中不断地改进和更新，滤袋除尘器的形式有滤袋正压内和正压外滤式。在原有的工艺设计、实施的过程中，结合其他除尘工艺新技术的开发及应用。高炉煤气干法滤袋除尘工艺和设备也在进行不断的开拓和新技术移植，高炉煤气干法滤袋除尘工艺应用于大型高炉将为时不远。     

浅析大型高炉煤气除尘系统组合模式

根据目前国内外大型高炉普遍采用的煤气除尘工艺，分析三种组合模式，认为重力除尘器 切向旋风除尘器 环缝洗涤塔这一组合模式比较适合大型高炉的煤气除尘。     

高炉煤气余压回收途径探讨

介绍高炉煤气余压透平装置各种结构、透平联接方式（TRT，BPRT）以及高炉煤气净化工艺，并对不同工况下透平回收效率进行分析，推广具有节能、增效的工艺，具有十分深远的意义．     

宝钢高炉和转炉煤气洗涤水处理技术

介绍了宝钢高炉煤气洗涤水和转除尘废水两大水处理循环系统的工艺组成及工艺设计特点，通过日常的生产，技术管理，使系统保持水的重复利用率达到９５％以上，污染物综合排放合格率９５％以上，以及其对炼钢ＯＧ泥浆再利用进行的技术改造。     

邯钢2000 m3高炉强化冶炼技术进步

对邯钢2000m^3高炉强化冶炼的过程进行了分析,该高炉是从德国引进的二手设备,采用了并罐无钟炉顶、全冷却壁结构炉体、软水密闭循环冷却系统、湿式除尘煤气净化系统等先进技术。针对大风机投产、富氧减少、原燃料质量下降等因素,通过加强原燃料管理,进一步优化炉料结构,完善上下部调剂,制定更趋合理的高炉操作方针,高炉的强化冶炼取得了较好效果。     

转炉煤气净化回收技术在天钢的应用

介绍了天钢三座120t转炉煤气净化回收技术的应用情况，从转炉设备条件、水量、操作控制等方面研究了这些因素对转炉煤气净化回收的影响，对应用过程中存在的问题采取了改进措施，并提出了应注意的问题。     

烧结烟气脱硫的动力波逆喷洗涤技术

通过对国内外烧结烟气进行分析,对动力波脱硫技术不断改进和完善,开发出了动力波烧结尾气脱硫技术.此技术能解决烧结烟气波动大、成分复杂、粉尘含量高、烧结厂脱硫面积有限等难题,是一种操作稳定、脱硫效率高、投资少的烧结尾气脱硫技术.     

高炉比肖夫煤气处理系统积垢与堵管原因分析

针对涟钢2200m^3高炉比肖夫系统的积垢与堵管,分别从垢物成分、高炉原料、水质、负荷等方面进行了分析。并根据垢物的特点提出了诸如选择原料、降低高炉顶温、降低清洗水pH值等措施。     

燃油烟气净化电收尘器的改造实践

介绍了以重油为燃料的回转窑半氧化焙烧烟气净化电收尘器运行中存在的问题、改造方案及效果,同时简述了热风清扫在大负压电收尘器上的应用情况.     

Latest developments for dry and wet dedusting systems for converter steel making

Environmental requirements world wide and in the P.R.of China in particular have increased and authorities are increasing the pressure on steelmakers to comply with always more stringent limits and standards. Modern converter steel making goes along with the innovation and new developments not only for the primary converter process itself but even more for the dedusting technologies.This paper describes the benefits and latest development of advanced off gas cleaning and recovery systems based on dry type cleaning with electrostatic precipitation and wet type gas cleaning based on wet scrubbers.Modern converter dedusting is based on suppressed combustion systems in order to reduce off gas amounts and to be able to use the gas for gas recovery.The dry type primary off gas treatment system based on electrostatic precipitator technology is the most advanced environmental solution available for converter steel making.Dry dedusting has been introduced in China successfully with a significant contribution by Siemens VAI being the market leader for converter dry dedusting systems.Siemens VAI has introduced several design improvements over the last years such as CFD modeling of flow conditions in evaporation cooler,design of chains for dust conveyors,design of ESP inlet,design and thickness of discharge electrodes and operation in energy saving mode.Additionally the DDS process has been successfully implemented in China for the De-P process.The gas recovery system for DDS has been optimized over the years with high quality equipment and integrated automation and control systems.Wet type dedusting for converter gas is a well proven technology for many years and is still widely used due to the simplicity of the process and the lower investment costs.SVAI has continuously improved it’s wet dedusting technologies to provide highly energy efficient systems which can achieve lowest levels of clean gas dust while still maintaining a moderate water and energy consumption with simplified process control and standardized process control packages.Main design and process improvements include expansion joints for connection of scrubber to cooling stack,new type of droplet separator,advanced hood pressure control package,ID fan washing system,ID fan speed control system etc.The focus for wet type gas recovery systems is still on maximum safety and reliability.SVAI has also successfully improved the technological packages for converter gas recovery for wet type dedusting systems.The comparison between the two system shows the advantages of dry dedusting mainly being the lowest clean gas dust content, lower operating costs,easier handling for recycling of residuals and no need for a water treatment plants.Wet type dedusting has it’s main advantages in the simple process and operation of the system,the flexible layout solutions inside the steel shop as well as generally lower investment costs.An overview on the numerous reference installations for dry- and wet type dedusting systems in China as well as world wide is given.     

炼铁生产中的除尘技术

文章重点介绍了高炉煤气干法除尘，出铁场除尘，原料矿槽除尘和喷煤系统收尘等多项除尘技术的应用情况及存在的问题，并阐述了我国除尘技术进展状况。     

太钢5号高炉煤气净化系统的改造

从节能减排的角度,对太钢5号高炉煤气净化系统的改造进行了阐述.太钢5号高炉煤气净化系统增设干法除尘改造投产后,提高了净煤气纯度,降低了净煤气粉尘含量;提高了TRT入口净煤气的温度,增加了TRT的发电量;节约了工业循环水.     

喷雾干燥吸收工艺处理焚烧烟气的研究

从设计的角度出发，通过对危险废物焚烧工艺实际运行监测结果的分析，以控制脱酸烟气进出口温度、化学计量比、碱性液体浓度和碱性液滴粒径等工艺参数来研究危险废物焚烧烟气的净化效率与上述参数之间的关系。