At what temperature should the chimney be heated before starting to bake the furnace?
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At what temperature should the chimney be heated before starting to bake the furnace? The backup suction capacity of the chimney ensures the exhaust of coke oven flue gas
The chimney temperature can be above 200 degrees to enable normal furnace drying. By the way, where are you building more coke ovens?
Generally, it takes one to two weeks, provided that the suction level is sufficient to meet the requirements for drying a coke oven at the initial stage after the flip plate is opened.
It’s already built; I’m just trying to get some data
It has been built; I’d like to know the data
The flue gas is at approximately 180°C after passing through the waste heat boiler; then, this 180°C flue gas, along with air at 110°C, enters the flue gas desulfurization unit, and after desulfurization, it is discharged directly into the atmosphere. If the flue gas is discharged directly from the chimney without passing through a waste heat boiler or desulfurization unit, one issue arises: the chimney needs to be pressurized. After calculations for a 5.5m-high rammed coke oven, it turns out that insulating the chimney at 120°C is sufficient to ensure the necessary suction force. I wonder if you are familiar with this area?