Application and Research of Automatic Ash Cleaning Device in Gas Boiler Flue
Currently,with the continuous advancement of steel smelting technology,the surplus of blast furnace gas and converter gas is gradually increasing,and all surplus gas is used for power generation,becoming an important way to reduce costs and increase efficiency.Meanwhile,with the gradual improvement of current environmental emission requirements,flue gas desulfurization and denitrification of gas boilers have become essential ancillary facilities.At present,the main desulfurization process for boilers is SDS dry desulfurization.The by-products of desulfurization deposit heavily in the tail flue with the decrease of flue gas flow rate,resulting in a decrease in the flow area of the flue and an increase in the load of the induced draft fan.In severe cases,it can cause insufficient negative pressure in the boiler furnace,making it unable to operate at full load.In severe cases,ash accumulation in the flue can even threaten the load-bearing safety of the flue and cause major safety accidents.Therefore,solving the problem of flue ash accumulation has become the key to ensuring the stable and safe operation of boilers.
SDS dry desulfurizationtail flueaccumulation of dust