Daily inspection method of hot blast stove for dregs drying line
The hot blast stove plays an important role in the dregs dryer production line. To extend the service life of the matched hot blast stove, perfect maintenance measures are needed. What are the specific aspects of maintenance?
The maintenance of the dregs dryer hot blast stove is divided into external overhaul and internal overhaul: dregs dryer internal overhaul and cleaning of the hot blast stove: the internal cleaning of the hot blast stove body should be cleaned from the top down, the furnace lining brick is strictly prohibited Lack of angular, weathering, cracks and other firebricks. During the internal overhaul, the valve power should be cut off and all valves except the flue valves should be closed. Check the equipment and maintenance equipment tools for electricity, must use well-insulated wire and tools, have a good protection device.
External repair of dregs dryer hot blast stove: Check whether there are any cracks or breaks in the weld transition zone and other stress concentration parts of the hot blast furnace body. Use 10 times magnifier to inspect the suspicious parts or use magnetic powder and coloring for surface inspection. For the length of not less than 20% of the total length can be further examined using ultrasound or radiation. Surface repair inspection and internal non-destructive inspection are performed on the hot air heater welding area of the dryer, and the surfacing surface should be smooth and smooth.