转炉污泥处理有助于高炉冶炼提高生产率

转炉污泥是一种含铁品位高、w（SiO2）低、利用价值较高的含铁资源,是转炉高温煤气经湿法除尘后产生大量的除尘污水,经加药、沉淀、浓缩和板框压滤后,形成的炼钢污泥。     

氧化球团厂精矿干燥干法除尘的实例与分析

本文介绍了氧化球团厂精矿干燥除尘的原理及应用，探讨了干法除尘系统控制方法，总结出干燥机烟气干法除尘的成功经验，对比分析了在干燥机除尘上湿法与干法除尘的利弊。     

转炉煤气节能减排的几种技术措施

介绍了转炉煤气干湿法除尘现状.阐述了提高转炉煤气节能减排的干湿法技术措施.其中,湿法除尘装置和技术改进有塔-文结构除尘装置和近期研发的布袋除尘装置,前者包括:新一代一塔式煤气湿法除尘装置,塔-文分装式煤气湿法除尘装置,以及新型塔-文分装式煤气湿法除尘装置.干法除尘技术改进包括:转炉煤气LT干法电除尘和转炉煤气高温袋式除尘系统.     

湿式电除尘器在转炉湿法除尘系统改造中的应用

针对目前国内大多数转炉仍采用湿法除尘系统法回收转炉煤气的现状,分析了其除尘机理,提出了在现有的湿法除尘系统中嵌入湿式电除尘器的改造方案,解决了原有湿法除尘系统进一步提高除尘效率与能耗之间的矛盾,实现转炉一次烟气的超洁净排放。     

转炉干法除尘设备维护实践

随着氧气转炉炼钢生产的发展,除尘技术越来越完善。氧气转炉炼钢生产中应用的除尘技术主要分为湿法除尘和干法除尘两种。相较于湿法除尘,干法除尘的优势更为显著,不仅净化效率更高,而且不会造成二次污染,同时还可以直接实现对回收粉尘的利用。因此干法除尘在经济性和环保性等方面均具有十分明显的优势。干法除尘需要借助相关设备才能实现,为保障干法除尘的效果和效益,需要加强对转炉干法除尘设备的维护,保障其性能的稳定性。基于此,本文就转炉干法除尘设备维护进行探究,以供参考。     

高炉煤气综合除尘模式实现

某钢厂3 800 m3高炉在原有湿法环缝洗涤塔除尘的基础上,增加干法布袋除尘。针对布袋除尘运行中高温和低温煤气的难题,采用干法/湿法切换控制及干法到湿法的自动切换控制技术、适合低温煤气运行的布袋除尘控制技术,使得系统运行安全可靠,布袋除尘运行率处于较高水平。     

大中型高炉煤气全干式布袋除尘技术

介绍了煤气全干式布袋除尘技术及其在大中型高炉中的应用情况,对煤气全干式布袋除尘与湿法除尘的技术经济指标进行了比较,指出在大中型高炉煤气处理技术中,采用干法除尘代替湿法除尘具有明显的综合效益。     

对莱钢含铁除尘灰和灰泥利用方式的探讨

介绍了莱钢含铁除尘灰和灰泥的利用状况,对采用湿法喷浆和转底炉技术处理除尘灰和灰泥进行了探讨。     

新钢业炼钢厂铁水搅拌脱硫湿法除尘改造

攀钢集团西昌新钢业炼钢厂对新建的铁水搅拌脱硫产生的高温粉尘烟气,在利旧使用的布袋除尘器不能满足除尘要求后,利用布袋除尘器的圆筒改造为洗涤塔,利用炼钢转炉一次除尘的浊循环水,进行湿法雾化水喷淋除尘,取得了好的效果。     

除尘灰和粉煤灰等工业固废的利用现状及发展趋势

介绍了典型的大宗工业固废除尘灰和粉煤灰的形成与性质。针对除尘灰现有火法冶金处理工艺能耗大、尾渣易造成二次污染，湿法冶金成本较高；粉煤灰利用率不高且大多为低附加值产品等问题，唐山华纤科技有限公司与华北理工大学合作，基于高温重构理论，提出了除尘灰与粉煤灰协同处理制备硅酸铝陶瓷纤维的工艺。新工艺不仅回收利用了除尘灰中的铁和锌，而且炉渣也可用来制备硅酸铝陶瓷纤维，达到了无害化处理的目标，实现了除尘灰与粉煤灰的高附加值利用，具有很高的推广价值。     

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.     

对高炉铁口区除尘的思考

铁口区是高炉→转炉流程钢铁厂的除尘难点之一，铁口区烟尘近一半属于可吸入颗粒物。我国多数钢铁厂位于大、中城市附近，随着环保要求日趋严格，高炉铁口区除尘将从难点问题变为热点问题。现有铁口区除尘方式（主要是二次除尘）不同程序地存在着投资及运行费用高、除尘效果差、妨碍炉前操作等缺点。铁口区除尘的关键在于二次烟尘捕集，出路在于开发出系统风量小、对炉前操作无影响、除尘效果好、投资及运行费用低的烟尘捕集系统。三段式吹吸结合二次烟尘捕集方案具有上述特点，有望实现经济的铁口区除尘。     

上海一钢150t转炉除尘废水处理设计

叙述了上海一钢150t转炉炼钢湿法除尘废水的水质特点，对除尘废水处理的混凝沉淀工艺及处理构筑物作了简要介绍。并对冷却塔的设置与否进行了探讨。     

煤气净化干法除尘器在包钢120 t转炉的应用

包钢一炼钢新建两座120t转炉煤气净化系统采用了LT干法除尘技术．与传统的湿法除尘技术相比,在各种性能指标的对比上均有着明显的优势,节约了大量的水电消耗。经过长时间的观察,经济效益和环保效益十分显著。     

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。     

高效湿式除尘器去除某磷矿粉尘的实验研究

湿法除尘技术是一种很重要的空气净化手段,但随着大气污染的逐步加剧以及各种烟气排放标准的不断提高,传统的湿式除尘器已经越来越难以满足人们的需要,而许多性能较高的改进型湿式除尘器则应运而生.高效湿式除尘器就是通过对传统的冲击式除尘器进行改进和创新后发明出的一种新型湿法除尘装置.通过去除某磷矿粉尘的实验研究,可以发现该除尘器具有除尘效率高、节能节水以及操作简单、设备维护的工作量小等优点,具备良好的经济效益和环境效益,并且在矿山、煤炭、冶金等多个行业中拥有广阔的推广应用前景.     

文氏管洗涤器操作与节能

买从湿法机找除尘器的效率主要决定于净化过程能虽消耗的原理出发，分析了影响文氏管除尘效果的主要因素和操作参数，并以某文氏管洗涤器的实测结果为例，找到了确定文氏管洗涤器经济合理操作参数的途径，为节能燥作提供依据．     

多相流水雾捕尘技术在生石灰除尘系统设计中的应用

在分析多相流水雾捕尘机理的基础上。设计了集水雾捕尘凝聚、凝并、惯性沉降、分离为一体的含尘气流净化湿式除尘系统。较好地解决了强粘结性粉尘堵塞管道的难题。