The waste slag salt produced by mixing coal chemical in the boiler of a power plant aggravates the slagging and ash accumulation on the tube wall of the heating surface of the boiler's high and low temperature superheater,which affects the safe and stable operation of the boiler.The composition analysis of coal ash,slag salt and slag sample was carried out,the test data of slag salt and fly ash test data before and after mixing slag salt were compared,the slagging characteristics and fouling characteristics of coal ash were calculated,the slagging tendency and fouling tendency of coal ash were analyzed,and the influence of the change of ash composition after adding slag salt on the heating surface slagging and fouling was analyzed.The results show that a large amount of mixed high sodium slag salt will lead to serious slagging on boiler heating surface,and seriously affect the safe and stable operation of the boiler.
NETL
NSTL
万方数据
