The problem of poor performance of the triple spin in catalysis is due, in addition to flue gas carrying catalyst
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Is there anything else? How to view it in the particle size distribution?
In terms of the particle size distribution of the three-spin catalyst, the content of catalysts in the 0–40 um range will decrease!
Does the triple spin mainly be used to recover fine powder below 40?
It is mainly determined by the three-spin outlet particle analyzer.
The more small particles there are, the worse it is, right?
The more small particles there are, the better the centrifugation effect should be.
First, it’s necessary to figure out what the main task of the Three Spins is. Personally, I don’t think judging the effect of triple rotation based on fine powder particle size is very reliable; a comprehensive analysis is needed. The fine powder particle size reflects more the effectiveness of the first and second stage centrifugation in the regenerator; the presence of particles larger than 40 μm indicates that there are problems with the regenerative centrifugation process. I’m not sure how you three-spin products are transported; we unload them on a regular basis and then weigh them after unloading. Through long-term data accumulation: such as the level of detail and the amount unloaded each time, it is possible to roughly assess the operational performance of the triple rotor. Of course, it would be better to have on-line analysis instruments for purifying flue gas using three-spin technology; these instruments are generally used to measure concentration. If the concentration rises suddenly or increases in an irreversible manner, a comprehensive analysis is needed to identify the root cause of the problem. The efficiency of the triple rotor decreases, and the greatest hazard is the threat to the smoke extractor: issues such as fouling and wear of the blades occur, which leads to a gradual decline in the efficiency of the smoke extractor, and may even result in its failure and shutdown. Therefore, the efficiency of triple rotation should be given high priority.
It’s awkward; I haven’t turned on the smoke extractor yet, so I haven’t done any online analysis either
1 To evaluate three-stage spin separation, it is necessary to distinguish between the concepts of separation efficiency and separation performance. 2 Whether it is single-stage, two-stage, or three-stage spin separation, once the hardware dimensions are determined, the separation performance is related to flow rate, particle size distribution, inlet concentration, and the volume of gas discharged. 3 Early multi-tube triple-rotor models equipped with discharge plates had a higher likelihood of hardware problems, as the discharge holes in those plates tended to get clogged ； The likelihood of hardware problems in three-spin systems that consist of single tubes without discharge trays, or even small cyclone units, has been significantly reduced. When the concentration and particle size exceed specified limits during operation, people often attribute the issue to the separator and assess it in terms of reduced efficiency; this is a misunderstanding of how three-spin systems work. 4.1 The higher the inlet concentration in a catalytic three-spin system, the higher its efficiency tends to be ； The lower the inlet concentration, the lower the efficiency. 4.2. For the inlet of the three-spinner, the larger the median particle size, the higher the separation efficiency; conversely, it is lower. 5. For flue gas treatment systems, it is important that the particle sizes in the flue gas be small and their concentration low, rather than focusing solely on high efficiency. 6. When there are abnormalities in the flue gas exiting the three-spinner, more attention should be paid to the dilute-phase concentration in the regenerator, the particle size distribution, the inlet flow rate, and the amount of gas discharged from the critical nozzle, rather than focusing on the hardware itself. 7. Whether it is an increase in concentration or an increase in the amount of fine powder, the hardware of the three-spinner is not the only or primary factor influencing these conditions. 8 Characteristics of hardware damage: irreversible, persistent