Circulating Fluidized Bed Boiler Refractory Castable

Circulating Fluidized Bedboiler Wear-resistant Refractory Castable

Circulating fluidized bed boiler in the heat of high concentration, high speed and turbulence of fly ash particles collision, erosion, abrasion and high temperature and thermal stress and chemical erosion, seriously affect the service life of the boiler.For refractory factory constantly study of suitable to the bad working condition of boiler refractory lining series, in particular to meet the high strength, high wear resistance, erosion resistance, good thermal shock stability, technical performance requirement of lining refractory material.There are several stages in the lining of circulating fluidized bed boiler.The second stage is clay combined with castings.The third stage is the high aluminous refractories, such as phosphoric acid, polyphosphate, water glass, pure aluminate cement, etc.The third stage of wear-resisting, fire-proof material using performance improvement than the first two, but due to a high content of CaO in the binder, high aluminum impurities in raw material composition, construction to guarantee the performance of causes in the condition of high temperature resistant material low porosity, high strength, wear resistance is poor;The fourth phase is developed on the basis of the above material success at low cement, ultra-low cement and without cement combined with just the quality of the jade series wear-resistant refractory castable (vibration castable and gravity pouring material).