|  View
                    from inside the cyclone unit made of watertubes
 |   | 
                
                  |  Needle
                    mounted waterwall assembly for installation of castable inner
                    layer |  Factory
                    assembled furnace wall unit | 
                
                  |  Start
                    up Oil burner unit with fresh air mix blows 800 °C  hot air
                    through the air nozzle for easy start up in a short time |  Ash
                    discharge from the overflow pit of the FBC bed with the ash
                    cooler system | 
                
                  |  Hot
                    ash cyclone
 |  Ash/
                    sand returning system
 |