Analysis and Control Measures of Slag-Leakage in Air Chamber of 300 MW Circulating Fluidized Bed Boiler
Serious slag leakage occurred in the air chamber of a 300 MW circulating fluidized bed boiler.Through observation and analysis,it was found that the abrasion of funnel cap and the falling off of the cap tip were the main causes of the slag leakage in air chamber.Dur-ing operation,controlling the primary air volume,controlling the particle size distribution and debris of the fuel in the furnace,improving the stability of the fuel,can greatly reduce the abrasion of the funnel cap of the CFB boiler.By increasing the size of the fastenings,im-proving the welding quality to ensure the connection strength,the leakage of the air chamber caused by the cap tip falling off can be avoided.
万方数据
维普
