内蒙古磴口金牛煤电有限公司2x300MW机组，烟气脱硫方法采用石灰石—

内蒙古磴口金牛煤电有限公司2x300MW机组，烟气脱硫方法采用石灰石—石膏湿法脱硫工艺，一炉一塔的配置方案，是目前世界上最成熟、运行状况最稳定的脱硫工艺。脱硫系统投运以来运行维护费用较低，可靠性高，国内大部分燃煤机组均采用湿法脱硫工艺，但存在较为突出的问题是干湿界面短时间内结垢严重，运行中无法清除，长周期运行将造成引风机出口阻力增大能耗升高，引风机频繁发生失速、带负荷能力下降且运行存在较大安全隐患。文章分析了干湿界面的结垢机理以及危害，详细阐述了相关技术改进措施，通过技术改造较好解决了结垢问题，同时具有降低投资费用和运行维护费用等优势。

内蒙古磴口金牛煤电有限公司2x300MW机组，烟气脱硫方法采用石灰石—石膏湿法脱硫工艺，一炉一塔的配置方案，是目前世界上最成熟、运行状况最稳定的脱硫工艺。 脱硫系统投运以来运行维护费用较低，可靠性高，国内大部分燃煤机组均采用湿法脱硫工艺，但存在较为突出的问题是干湿界面短时间内结垢严重，运行中无法清除，长周期运行将造成引风机出口阻力增大能耗升高，引风机频繁发生失速、带负荷能力下降且运行存在较大安全隐患。 文章分析了干湿界面的结垢机理以及危害，详细阐述了相关技术改进措施，通过技术改造较好解决了结垢问题，同时具有降低投资费用和运行维护费用等优势。

Inner Mongolia Dengkou Jinniu Coal Power Co., Ltd. is the most mature and stable desulfurization process in the world. The flue gas desulfurization method adopts limestone gypsum wet desulfurization process and the configuration scheme of one furnace and one tower. Since the desulfurization system was put into operation, the operation and maintenance cost is low, and the reliability is high. Most of the domestic coal-fired units adopt the wet desulfurization process. However, the prominent problem is that the scale on the dry wet interface is serious in a short period of time, which can not be removed during operation. The long-term operation will cause the outlet resistance of the induced draft fan to increase, the energy consumption will increase, and the induced draft fan will frequently stall, the load capacity will decrease and the operation will remain In case of great potential safety hazard. This paper analyzes the scaling mechanism and harm of the dry wet interface, and describes the relevant technical improvement measures in detail. Through the technical transformation, the scaling problem can be solved better, and the advantages of reducing investment cost and operation and maintenance cost are also provided.<br>