Issues related to cyclone separators
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Coaxial catalytic cracking. The vibration level of the smoke extractor fluctuates greatly; it has to switch to the backup unit shortly after being turned on due to excessively high vibration levels. Each time a cyclone (three-cyclone and internal cyclone) causes fluctuations in pressure drop, the vibration levels of the smoke extractor also fluctuate significantly. . . Everyone is welcome to come and discuss
The fluctuation time for each voltage drop ranges from half an hour to one and a half hours. Personally, I think the poor single-rotation separation is the reason for the fluctuations in the backside three-rotation pressure drop as well. If it’s a rough spinning condition causing abnormal catalyst behavior, the catalyst loss must be significant!
The operating efficiency of the centrifuge can be determined based on the amount of material processed. There are many reasons for excessive vibration in the smoke extractor; analyzing the situation solely from the perspective of pressure drop can be somewhat limited. After ruling out factors such as equipment issues, fouling on the fins, and flow rates, it is possible to investigate the causes from a process perspective. It is also important to determine whether it is the vibration of the smoke extractor that causes changes in pressure drop, or rather, whether it is changes in pressure drop that lead to vibration in the smoke extractor
If there are no issues with the standby unit, and the first, second, and third cyclone separators are working properly as well as the regeneration pressure, then everything is fine. Check the smoke extractor inlet cut-off and the control butterfly valve.
The fluctuations in cyclone pressure drop and the fluctuations in the vibration levels of the smoke extractor are completely synchronized in time; it is certain that the two influence each other. I mainly want to discuss with everyone the various possible reasons for poor cyclone separation
I had also suspected that there might be other reasons before. When the smoke extractor is disconnected and the motor is used directly to drive the main unit, fluctuations in voltage occur as well; this is caused by poor performance of the cyclone separator
The forum has reviewed the materials. It is possible that the large or small amount of flue gas passing through the critical flow velocity nozzle prevents the three-spinners from functioning properly. .
The key is to find out what causes the fluctuations in cyclone pressure drop. Is it still pressure or a heat exchanger leak?
The key is to find out what causes the fluctuations in cyclone pressure drop. Is it still pressure or a heat exchanger leak?
Is the system leaking? To determine the efficiency of the centrifuge, it is necessary to analyze the flue gas particles before and after the use of the three centrifuges; this way, it becomes possible to assess the separation effectiveness of the first and second centrifuges as well as that of the third centrifuge