A three-phase fluidized bed flue gas purification facility suitable for medium-and small-size boilers below 100MW was developed by the Thermal Power Research Institute under State Power Corp. The facility features simple structure

less investment

small occupation area

strong suitability to boiler loads and fired coal sort

and high desulfurization efficiency. The said facility had been used on a 6t/h coal-fired boiler for central heating. The results of desulfurizaton and dust-elimination being good. And a description and analysis of the working principle

flow process

composition

properties

and infuencing factors for the said purification facility has also been carried out.