Dust concentration at the inlet of the catalytic flue gas extractor
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As the title suggests, what is your current inlet concentration? What is the percentage of particles larger than 10 microns? Our current concentration is 50 mg/m3, and the percentage of particles larger than 10 microns is 12%. Does such a condition indicate that the separation efficiency of the three-spinner is not very good?
Our concentration is 200 mg/m3, and the proportion of particles larger than 10 microns is 3%. Your concentration is acceptable; there are too many fine particles.
Yes, I noticed that there are a bit too many particles larger than 10 microns, so I wanted to replace them with 3-spin models. But the manager said the cost was too high and refused to approve it
If the smoke extractor blades get damaged, they just give it a replacement...
For most fine dusts, the separation efficiency of cyclone dust collectors is poor; it is recommended to use bag dust collectors, whose filtration efficiency can reach 99.9%.
I just checked the data here, and those values greater than 10 are all below 0.5. Do you have too much fine powder there? Is there a steam leak in the regeneration system? Moreover, this part cannot be recovered by the three-spinner; the three-spinner can only recover catalysts larger than 20!
The choice of separation equipment depends on many factors; for example, the flue gas temperature in catalytic cracking can reach nearly 700 degrees, making it unsuitable for the bag filter system you mentioned!
50 is good; there is a high proportion of large particles, and smoke extractors with a high ratio of large particles are less prone to scaling.
Yours are so good; it seems we do have quite a lot of large particles
Ultra-high temperature filters can be used, with a dust concentration at the outlet of 5-10 mg/m3.
Ultra-high temperature filters can be used; of course, various operating conditions need to be taken into account when deciding on the type of dust collector. This is just for reference