... ; 2,water-cooled air compartment, bell-type bubble cap, full membrane wall furnace; 3,insulated volute cyclone separator and U-shaped ... tail flue for convection heating surface. Core Technologies1,volute cyclone separation ; 2,built-in bell-type bubble cap ; 3,fly-ash ... of pollutants and environment-friendly 3,high efficiency of material separation and circulation rate 20%miin 4,no soot formation on ...