What to do if the acid cooler is clogged?
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In sulfuric acid production, acid coolers can be placed either before or after the pump. However, when placed before the pump, the inlet of the acid cooler is prone to being blocked by broken ceramic rings or broken acid-resistant concrete in the dry absorption tower, resulting in a large amount of acid accumulating in the pipes inside the tower; in severe cases, this can lead to production accidents. I wonder if anyone has encountered this? Besides, what other ways are there to solve it?
Don’t you use vertical pumps? Such a situation you mentioned definitely exists; even with the vertical pump acid cooler we use, there have been cases of reduced flow at the pump outlet. Upon stopping the pump for maintenance, it was found that there was a lot of debris at the inlet of the heat exchanger. Especially at the beginning of operation after a major overhaul, there is no other choice but to install a temporary filter, which is then removed once things stabilize.
What was said upstairs makes sense; no matter what method is used, the most important thing is to have a filtering device before entering the cooler
In our plant, the acid at the bottom of the absorption tower and drying tower flows directly into the absorption circulation tank and the drying circulation tank; it is then circulated using vertical pumps located at the top of these tanks. There is a partition wall between the point where the acid enters the tanks and the pump inlets. To date, there have been no instances of blockages in the acid coolers. During shutdowns for maintenance, it is sufficient to simply clean the absorption acid and drying acid circulation tanks
Installing retaining walls is a good solution; the specific approach depends on the structure of the dry absorption tower. As for the filter, it depends on what type it is. When building a retaining wall, it is also necessary to enclose the intake opening.
Installing retaining walls is a good solution; the specific approach depends on the structure of the dry absorption tower. As for the filter, it depends on what type it is. When building a retaining wall, it is also necessary to enclose the intake opening.