75t/h锅炉双循环流化床烟气脱硫装置研制及应用

以中试研究为依据，研制开发了双循环流化床烟气脱硫装置，并在一台75t/h电站燃煤锅炉上投入工业化应用，该脱硫装置的烟气处理量为140000m^3/h，是目前国内最大的具有自主知识产权的CFBFGD工业化装置。介绍装置的技术关键、工作原理、工艺特点、装置结构和主要测试结果。工业化运行结果表明：装置运行稳定可靠，工艺简单，投资和运行成本低，当Ca/S=1.3时，脱硫效率达90％以上。

Development and application of double circulating fluidized bed-flue gas suspension desulfurization facilities of 75 t/h Boiler

On the basis of pilot experiment and study,the double circulating fluidized bed-flue gas suspension desulfurization(DCFBS)facilities were developed and industrially applied in the75t/h utility boiler.The flue gas flow rate of this facilities is140000m 3 /h,being the biggest CFBFGD facilities with autonomous intellectual property in China now.In this article the technical keys,working principle,technological features,configuration and test results of the facilities were introduced.The practical operat-ing results showed that the facilities operated stably,with the advantages of such as simple technology,low capital investment and low operating cost etc.In the condition of Ca /S=1.3,the desulfurization efficiency was more than90%.