Regarding the issue of air intake through manholes in the horizontal flue pipes at the inlet of the primary scrubber
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Some time ago, the exit temperature of the primary washer in the sulfuric acid plant would not drop, and the current drawn by the circulation pump was also too low. The management refused to shut down the plant for repairs; instead, they ordered that the manholes on the horizontal smoke pipes be opened in order to lower the inlet temperature and keep production going. This situation persisted for a whole week before the plant was finally shut down for maintenance. As a result, the nozzles and their inlet pipes became completely clogged, and it took an entire shift to clean them out. I wonder if there will be any further consequences
It’s likely that the nozzle was clogged long ago, which is why the outlet temperature couldn’t drop and the pump current couldn’t increase. What do you think?
It is also possible that scaling in the section from the pump outlet pipe to the annular tube up to the nozzle results in less liquid being supplied Also, at the inlet of the purified flue gas, what is the moisture content? Run two pumps to give it a try
It must have been congested early on; I mainly want to ask if there are any side effects?
The clogged nozzle is the root cause; it’s just not clear what consequences there might be if we wait another week before taking action
No, it’s the management of the bottom-blown furnace workshop
Check the operation of the melting furnace and converter electrostatic precipitators; verify whether the secondary voltage and current are within normal ranges. If the dust content is high, it can cause blockages in the purification plates, resulting in less acid circulating in the gas cooling tower. This, in turn, leads to poor purification efficiency. The secondary voltage and current of the electrostatic mist remover also cannot reach the required levels, causing high levels of acid mist at the purification outlet