转炉干法除尘煤气回收自动控制系统的应用和分析

介绍了菜钢120 t转炉干法除尘煤气净化回收自动控制系统的应用,详细叙述了莱钢120 t转炉干法除尘系统煤气回收的自动控制过程,并对影响煤气回收的几个因素进行了分析。     

150 t转炉汽化冷却烟道的研究及应用

论述了转炉干法除尘系统及其汽化冷却烟道结构,结合150 t转炉干法除尘系统的应用,介绍了适应性的设计和实际效果。转炉干法除尘系统的应用,消除炼钢污泥及污泥运输的二次污染,大幅度提高了能源的利用效率和各种副产煤气的回收利用。     

210t转炉干法除尘煤气净化回收分析

包钢薄板厂210t转炉一次除尘改造为干法除尘后,转炉煤气质量和煤气回收量相对于湿法除尘均有了明显的改善,介绍了干法除尘煤气回收系统的可靠性和安全性。     

转炉煤气回收系统优化改进

本文介绍某转炉厂煤气回收系统的优化措施,依托转炉煤气干法除尘设备调控功能,优化操作,不仅提高转炉煤气回收量,有效降低炼钢工序生产成本,解决了干法除尘与转炉冶炼工艺的相互配合及转炉炉口外溢烟气问题,极大降低钢厂污染物排放总量,实现清洁生产。     

单光路激光气体分析仪在转炉煤气回收中的应用

针对转炉煤气回收柜前、干法除尘工艺中电除尘装置后煤气浓度分析的重要性和目前分析系统的不足,结合冶金行业大力推行节能减排、绿色炼钢的可持续发展模式,介绍济南钢铁股份有限公司第三炼钢厂新炼钢转炉的煤气浓度分析仪,详细说明激光分析仪工作原理,重点介绍单光路激光气体分析仪在转炉干法除尘中的应用问题。实践证明激光分析仪能够满足在转炉煤气回收利用中煤气浓度的监测功能要求。     

转炉煤气除尘技术比较和新干法除尘技术探析

转炉煤气是高温高含尘烟气,不论湿法除尘还是干法除尘都要对其直接喷水降温,消耗大量冷却水,同时转炉煤气900℃以下显热能也白白浪费。介绍了现有转炉煤气除尘技术,包括湿法、干法以及半干法除尘技术,比较各自能量消耗。提出转炉煤气新干法除尘技术,该技术能显著减少系统冷却水消耗,并提高系统蒸汽回收量。     

提高转炉煤气回收能力的技术应用

安钢第二炼轧厂目前拥有三套转炉干法除尘系统,是目前国内较为先进的集蒸汽余热回收、转炉煤气回收、转炉粗灰回炉、转炉细灰收集和颗粒物超低排放全过程控制的冶金环保系统。为了提高转炉干法除尘系统的煤气回收能力,除了设定CO含量最低回收条件和最大风机转速外,还介绍了如何判断和处理若干常见的回收故障问题。     

半钢炼钢干法除尘系统煤气回收应用

本文针对攀钢半钢炼钢条件下的干法除尘系统进行煤气回收的实践和应用。通过规范转炉冶炼操作和干法除尘主控操作,对装入制度、加料制度、造渣制度、控制系统等进行了调整和优化,成功地在干法除尘上进行煤气回收,达到了国内先进水平。     

转炉煤气干法除尘回收技术展望

介绍了转炉煤气湿法和干法两种除尘方法,通过两种除尘方法比较,阐明转炉煤气干法除尘的优点及应用前景。     

承钢120吨转炉干法除尘及煤气回收应用

阐述承钢120吨转炉煤气干法除尘及回收系统的技术特点及设备的应用。     

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。     

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.     

湿法板式除尘技术在转炉煤气除尘中的应用

介绍了湿法板式除尘技术在济钢燃气发电厂转炉煤气除尘中的应用情况以及取得的效果，并提出了在应用中应注意的问题。     

静电布袋复合除尘器在转炉一次除尘系统的应用

静电布袋复合除尘是基于静电除尘和布袋除尘两种成熟的除尘理论而提出的一种新型的除尘技术。它结合了静电除尘器和布袋除尘器的优点,将其应用于转炉一次除尘系统能够实现处理后的转炉煤气含尘量≤10 mg/m3,除尘系统运行可靠,减少投资费用和占地面积,并对超细颗粒（如PM2.5）有较好的捕集效果,在新建和改造的转炉一次除尘项目中具有良好的应用前景。     

干式转炉煤气柜安全性评价

黑龙江省鑫祥安全评价咨询服务有限公司应用蒸气云爆炸冲击波伤害、破坏半径的模拟分析法对西林钢铁集团有限公司5万m^3干式转炉煤气储柜进行安全性评价,评价结果表明,5万m^3干式转炉煤气储柜,一旦出现转炉煤气泄漏事故,将会造成重大人员伤亡和财产损失的严重后果。     

干法电除尘在转炉炼钢厂的应用

阐述了干法除尘技术在转炉炼钢厂的应用,结合江阴兴澄特种钢铁公司现场实际使用情况,对干法除尘系统使用过程中出现的问题进行总结分析,为该项工艺技术的进一步研究与改进积累经验及提供依据。     

转炉二次除尘新技术在改造项目中的应用

介绍了转炉二次除尘新技术的研发背景,结合宝钢二炼钢转炉除尘系统改造项目介绍了转炉二次除尘新技术在改造项目中的应用情况。从除尘风量的确定、集尘罩的形式、管路系统的布置以及转炉三次除尘等方面进行了具体分析,对比传统转炉二次除尘系统的不足,提出了转炉二次除尘新技术的优势,为大中型转炉二次除尘系统在线改造提供参考。     

全干法除尘技术在鞍钢2580m3高炉的应用

介绍了旋风除尘加布袋除尘的全干法除尘技术的操作控制要点,该技术在鞍钢2580 m3高炉上应用后,取得了较好的除尘效果,旋风除尘器除尘效率达85%以上,年节能效益达237.6万元,具有很好的推广应用价值。     

转炉炼钢干法除尘系统泄爆率影响因素研究

转炉炼钢采用干法除尘是一种发展趋势.分析了转炉炼钢干法除尘系统泄爆产生的条件、原因.结合宣钢150 t转炉的实践,提出了吹炼前期合理控制枪位和供氧强度,密切关注EP内气体含量;二次下枪前延缓CO生成速度,避开泄爆点,二次下枪后严格执行相应吹炼模块;提前预知入炉原料成分和成色,避免前期泄爆等防泄爆措施,对转炉炼钢干法除尘安全使用提供了较好借鉴.