--- Check the furnace lower dense-phase bed wear resistant castable whether has wear and tear or flaking off.
--- Check the furnace lower dense-phase bed four corner water wall tube whether any signs of wear and tear.
--- Check the hood on ventilation board whether has wear phenomenon.
--- Check for dust phenomenon water cooling indoor heat preservation material whether has flaking off.
--- Check for middle boiling under boiling of thermo couple whether has wear and burn out.
--- Check cyclone separator target straight at the entrance whether has severe wear phenomenon.
--- Check the cyclone separator at the entrance to the eagle tip whether has wear phenomenon.
--- Check the top of the cyclone separator and the vertical section joint whether has crack phenomenon.
--- Check cyclone separator cone part whether has check phenomenon.
--- Check center tube in cyclone separator whether has damaged
--- Check top cyclone export flue wall whether has damage crack phenomenon such as dent.
--- Check return feeder cowl whether has damaged phenomenon.
--- Check fireproofing in return feeder whether has damaged phenomenon.
--- Check hanging tube wear mask whether has deformation phenomenon.
--- Check the superheater, economizer wear mask whether has deformation phenomenon.
--- Check tail shaft flue furnace wall whether has deformation damage phenomenon.