The problem of fluidization of 1 million ARGG after bed compaction
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There has always been a problem with this device: in the event of a major power outage or other situations that cause the catalytic system to become clogged, it is easy for the catalyst to escape when the main fan is turned on to facilitate fluidization. Large amounts of catalyst escape from the chimney like smoke, which not only results in waste but also causes trouble for the local residents who have to deal with it constantly. The workshop tried both slow and fast introduction of the main air flow, but in both cases there was still agent leakage; there was no other solution except to remove the agent, after which introducing the air flow again worked without problems. Air volume: 130,000.
Does the main airflow enter the regenerator through two branches? During air induction, uneven flow in the two branches may cause leakage of the fluid.
The coaxial single-stage regeneration unit designed by Luoyang has this problem with basically all of its units; many such units have been installed. For handling purposes, the main air feed on each side of the regenerator has its own flow rate display, and the density is monitored in order to address the issue of one side not being able to fluidize properly. Or use a large amount of accident steam to loosen it first. Additionally, the secondary leg flap valve has been improved.
Does your design include a main fan failure steam system? Generally, when the main fan stops, the steam for handling failures is available normally, and then the bed-sealing option can be used; this situation should not occur.
I’ve learned it. Thank you all. Next time this problem arises, I’ll give it a try. Thank you