What causes a large amount of tar to be present behind the fan?
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There is a large amount of tar behind the fan; the tar discharged through the liquid discharge pipe resembles the dry residue of crude benzene. However, there isn’t much sulfuric ammonium tar. What is the reason for this?
Is the tar content in the intake air too high?
The problem is right in front of the fan – is the electric precipitator operating properly?
Is the collection temperature after the primary cooler too high, resulting in the electric tar collector being unable to collect it?
The electrostatic precipitator is working properly; there is no acidic tar in the ammonium sulfate
Is it related to initial cooling spraying?
Collecting temperature after the primary cooler: 30 degrees
First, check the combined temperature of the primary cooler and keep it below 25 degrees. Second, check the spraying condition of the condensate at the upper and lower sections. Third, check the effectiveness of the electrostatic precipitator in removing mist, ensuring that the tar content at the outlet of the electrostatic precipitator remains below 50 mg/m3.
The temperature must be reduced to around 20 degrees, with consistent brightness. At the same time, it is necessary to check whether the nozzles of the spray pipes in the primary cooler are blocked, and to control the temperature of the liquid used for spraying