Circulating Fluidized Bed Boiler Desulfurization Industrial Trial Study

During combusting, Circulating Fluidized Bed boiler can get rid of sulfur and nitrogen that are harmful, and deprive of the dust of gas with the technology of electric dust catcher. At the same time the emission of the waste can satisfy the emission control regulations. Circulating Fluidized Bed boiler' s combustion efficiency is very high, and it' s value of economic and environment protection is superior to other type boiler. So it is worth for us to spread Circulating Fluidized Bed boiler.At present, there are increasing the standard of environment protection in our country. Electric factory' s burthen is in greater range and there are many types of coal. A great deal of coal was directly combusted. In our country national' s development is unbalance and the contradiction becoming evident between environment protection and combustion of coal. In this case, Circulating Fluidized Bed boiler has become the first new technology of high efficiency and low pollution.This paper simply introduce the clean combustion of Circulating Fluidized Bed boiler and explore the desulfurization, using by connecting with the practically case of BT-75/4. 2-M Circulating Fluidized Bed boiler in YTH group.YTH Circulating Fluidized Bed boiler' s desulfurization effect can achieve to 90. 5 percent, the average of sulfur dioxide capture is 1060mg/m~-1 . This suggests that CFB can achieve the standard of clean combustion.The industry experiment on desulfurization by limestone in a 75t/h CFB boiler is completed. The effects of Ca/S ratio obtained on the efficiency of desulfurization, bed temperature and efficiency when firing anthracite. On the basis of analyzing the test results,the applicable Ca/S ratio to the desulfurization by limestone of CFB boiler firing anthracite is also suggested.