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1. The surface of the water-cooled wall and the bottom of the suspended screen and the surface of the cast-in-place material at the bottom of the dense phase of the furnace should be completely smooth, uniform in thickness, free of wear, shedding, pitting and bulging. The cover tube is not exposed, no reticular crack And the penetrating crack, the width should be less than 5mm when crack occurs, and partial dismantling and repair must be carried out when it is larger than 5mm.
2. The surface of the caster in the cyclone and the material leg and the return leg should be complete and smooth, uniform in thickness, free of wear, shedding, pitting and bulging, no reticular cracks and penetrating cracks, such as layered bulging or The width of the crack should be less than 10mm, and it must be partially dismantled and repaired when it is larger than 10mm.
3. Furnace outlet horizontal flue and cyclone separator exit horizontal flue castable surface should be complete and smooth, uniform thickness, no wear, shedding, pitting and bulging, no reticular crack and penetrating crack, such as delamination The width of the drum package or crack should be less than 10mm, and it must be partially dismantled and repaired when it is larger than 10mm.
4. For the pouring material covering layer that often falls off, the manual slamming method should be used to check the hidden defects. When the pouring material falls and loose, it must be partially dismantled and repaired.
5. The surface of the anti-wear beam castable should be complete and smooth, uniform thickness, no shedding, bulging, strong grip, no open welding, no reticular crack and penetrating crack. When crack occurs, the width should be less than 5mm, greater than 5mm. Partial dismantling must be performed.
6. The castable at the thermal point of the boiler shall not impede the advancement and retreat of the measuring point and change the elevation and angle of the measuring point.
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