共查询到19条相似文献,搜索用时 78 毫秒
1.
基于TIA平台的转炉控制系统主要包括散状料控制系统、铁合金控制系统、本体和公用控制系统、炉底吹氩控制系统、余热锅炉控制系统、干法除尘控制系统、二次除尘控制系统、循环水控制系统、煤气回收加压站控制系统、铁水预处理控制系统(脱硫控制系统、混铁炉控制系统)、精炼炉控制系统。 相似文献
2.
3.
介绍了宣钢转炉干法除尘控制系统存在的问题、工艺优化与控制过程.通过对干法除尘电场控制系统进行改造、增设远程站、增加切换站放散杯阀伺服油路和换向油路切换功能组,实现了除尘管道自动吹扫,降低了设备故障,保证了系统安全稳定运行. 相似文献
4.
介绍了转炉煤气干法除尘技术的工艺过程,比较了湿法除尘技术和干法技术的各种效能,指出了干法除尘技术更适合我国冶金行业的要求。重点说明了昆钢新区2*120 t转炉将采用的干法除尘的主要设备及自动控制技术的特点和控制方法。 相似文献
5.
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。 相似文献
6.
7.
8.
9.
10.
介绍了目前炼钢厂转炉中使用的干法除尘和半干法除尘的工艺流程,并重点从性能参数、设备维护、能耗指标以及经济效益等方面对干法除尘和半干法除尘进行了全面的对比分析. 相似文献
11.
针对莱钢120t转炉煤气干法除尘系统,简要介绍了其控制系统的硬件配置,详细阐述了蒸发冷却器喷水预设定控制、出口温度自学习控制、静电除尘器电场自记忆控制、转炉烟罩微差压阻尼控制、输灰系统双摆阀逻辑控制、引风机吸气自选择控制、切换站压力无扰动切换控制等功能。 相似文献
12.
说明了宝山钢铁股份有限公司不锈钢分公司炼钢厂2座150 t BOF副枪在转炉冶炼中的检测功能特点,阐述了该副枪控制系统结构、电气传动控制功能、探头检测信号数据处理方式以及控制软件的实现。另外说明了该副枪在调试中的问题和处理方法,并给出检测实绩。 相似文献
13.
14.
介绍宝山钢铁股份有限公司不锈钢分公司炼钢厂150 t BOF转炉4点交流变频装置同步传动的方式及特点,阐述了这4点传动同步控制的位置控制、速度控制,以及在速度控制下利用PLC实现变频器速度指令对操作杆倾角的跟随功能,另外说明了转炉转角对转炉系统状态过程的关系和作用,给出了转炉与其相关设备安全联锁的应用实例。 相似文献
15.
16.
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. 相似文献
17.
《Baosteel Technical Research》2010,(Z1):133
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. 相似文献
18.
结合具体案例,通过对过滤式除尘器的机理、常见过滤材料性能、转炉煤气的特性等方面的分析,发现采用布袋、塑烧板过滤除尘器存在一定的技术难点,探讨了采用多孔金属纤维材质滤料在转炉煤气干法净化回收系统应用的可行性,总结了存在的问题及有待解决的问题. 相似文献
19.
介绍了宝山钢铁股份有限公司不锈钢分公司炼钢厂转炉BOF OG(Oqgen Converter Gas Recovery)形流量调节元件RSE(Ring Slit Element)在基于裙罩内外炉口微差压条件下对烟道流量的调节以及除尘水在除尘塔和管道中的工作方式等的新技术应用,同时介绍了OG系统的控制系统结构、主要控制单元中风机系统和汽包系统的控制特点等,同时给出了OG系统除尘、汽化和煤气回收实际效果。 相似文献