Off-line stove cooling method for hot-blast stove
A hot blast stove and cool stove technology, applied in the field of hot blast stove maintenance, can solve problems such as broken or collapsed vault refractory bricks
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[0082] The off-line cooling method of the hot blast stove of this application is in Baowu Group Shaoguan Iron and Steel 3200m 3 Applied to blast furnace internal combustion silica brick hot blast stove.
[0083] Install a K-type thermocouple in the original radiation thermometer installation hole on the side of the hot blast stove vault. The diameters of the first manhole and the second manhole are both 700mm. The diameter of the main pipeline is 900mm, equipped with an electric butterfly valve, the diameter of the branch pipeline is 700mm, the second pipeline is laid at the second manhole, and the adjusting flap is equipped, the diameter of the second pipeline is 700mm.
[0084] First cool down to 700°C at a cooling rate of 6-8°C / h, and keep warm at 700°C for 24 hours, then cool down to 300°C at a cooling rate of 2-3°C / h, and keep warm at 300°C for 24 hours, and finally use Cool down to 60°C at a cooling rate of 1-2°C / h. The entire process of cooling the stove is completed ...
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