How to deal with excessive tar accumulation in negative pressure pipelines
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How to deal with excessive tar accumulation in negative pressure pipelines
Don’t normal negative-pressure pipes usually have high-pressure ammonia wash nozzles? But I would like to ask the original poster how they determined that tar had accumulated in the negative-pressure pipe
It was detected using a thermal imaging instrument
Generally, the negative-pressure coal gas pipeline before the gas-liquid separator is equipped with a certain number of high-pressure ammonia water nozzles, which should be able to solve this problem
It seems to me like you’re talking about a mixture of dust and tar. The temperature in the negative-pressure pipelines is above 80 degrees Celsius, so tar does not tend to deposit there. Rinsing it with ammonia should solve the problem.