梅钢180m²烧结机烟气脱硫系统控制

来源期刊：冶金自动化2010年第4期

论文作者：滕新蔚

文章页码：27 - 31

关键词：烧结机； 烟气脱硫； 气喷旋冲湿式石灰石-石膏法； 脱硫工艺

Key words：sintering machine； flue gas desulfurization； technology of swirl jet tower； desulphurization process

摘    要：以上海梅山钢铁股份有限公司3^#烧结机烟气脱硫工程为例,介绍了气喷旋冲湿式石灰石-石膏法烟气脱硫技术在大型烧结机烟气脱硫工程中的运用,阐述了烟气脱硫工程中各主要子系统——烟气系统、吸收塔系统、浆液制备系统和回收水系统的控制策略及关键控制点。重点描述了增压风机前导叶挡板开度,吸收塔液位,浆液pH值、温度、密度与脱硫效率和水平衡的相关性,以及相关的控制方法,并从控制系统的硬件配置、系统结构和控制流程等方面论述了大型烧结机烟气脱硫的控制策略和实现方式。

Abstract: Taking the flue gas desulfurizing project of No.3 sintering machine in Shanghai Meishan Iron and Steel Co.,Ltd.as an example,application of swirl jet tower flue gas desulfurization technology in flue gas desulfurization project of large-scale sintering machine is introduced.Control strategy and critical control points of main subsystems,including flue gas system,Absorption tower system,limestone slurry preparation system and water recycling system,are elaborated.Correlations of booster fan baffle opening,Absorption tower liquid level,and pH,temperature and density of slurry with desulfurizing efficiency and water balance are discussed in detail.Associated control methods are presented also.Control strategy and implementation of flue gas desulfurization in large-scale sintering machine are described from the aspects of control system hardware,system construction and control flow etc.