How to deal with tar emission from the riser?
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During normal production, it was found that tar was leaking from certain rising tubes, resulting in tar accumulation on the outside of those tubes as well as on the manhole covers. I would like to ask everyone how to avoid this phenomenon from occurring? Thank you!
This phenomenon does not occur here; I think it is caused by the low temperature in the space above the furnace. Or the insulation of your riser tube is poor. Let’s have a thorough discussion.
It wasn’t explained very clearly. Is tar coming out from the base of the rising pipe, or from the socket or cleaning port? It is usually caused by a poor seal. The presence of tar inside the fire hole cover usually occurs in the vertical flue of the burner; it is caused by incomplete combustion or leakage of gas, and it can be resolved by making adjustments.
I’m not sure whether the poster is referring to the water seal at the rising pipe or some other location; I hope the poster can clarify this. I also don’t understand what was said above – even if the temperature in the space above the furnace is low, it shouldn’t be low enough to cause tar to precipitate. Moreover, the temperature in that space is sufficient to allow gas to be released under certain pressure, so it won’t stay there and condense. If the temperature is well controlled, it shouldn’t result in an excessively low temperature in that space. In our company’s bridge pipes, there are indeed leaks from which tar and gas can escape
If tar is coming out of the rising pipe, it’s likely due to a loose seal at that point, or it might be coming from some other connection; a thorough inspection is necessary.
Tar is escaping from the local riser; accordingly, raw gas is escaping from that same local riser, and raw gas necessarily contains tar. Too much tar will surely drip onto the fire hole cover. Another reason is opening the riser cover too early or cleaning the riser. First, prevent leaks; second, standardize operations. This post was last edited by 26722672 on 2009-2-7 14:09.]