The problem of excessive impurities in the horizontal pipes in the coke oven basement
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As winter approaches, there are more impurities in the horizontal pipes in the basement, especially around the side burners. The temperature of the preheater reaches 60 degrees, and cleaning is necessary every day. What is the reason for this? Are there any good solutions?
I’m sorry, I haven’t dealt with it before, so I can’t help you
Strengthening the management of the gas purification process focuses mainly on the cooling zone and benzene stripping.
The gas temperature in the preheater is too high; try lowering it to 45 degrees.
1. Your furnaces are likely old; the purification of gas returning from the furnaces is not adequate, and the temperature at which the gas is initially cooled in the recovery workshop is too high. If the chemical products are not recovered properly, they will enter the basement through the gas pipes used for reheating. In winter, when the temperature of the horizontal pipes connected to the auxiliary heaters is too low, the chemical products will condense and form crystals (probably naphthalene), along with water, which then blocks the orifice plates. II. As mentioned above, the temperature of the preheater is too high; try controlling it at 40–45 degrees. In the first case, the only option is to ask the factory to handle the recycling; otherwise, adjusting the settings is very difficult, and after making a few adjustments, the problem will arise again.