Fine powder catalyst wears through the deslagging pipeline
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What are the reasons for pipeline perforation during the unloading process of the waste catalyst that has been separated from the catalytically regenerated flue gas by centrifugation?
Given a constant material, pipeline wear is proportional to the frequency of fluid removal and the duration of each removal session.
Catalyst wear, excessive amount of catalyst, too rapid and prolonged catalyst removal
At the same frequency, the regenerator unloading line was not worn through
Erosion. Reduce the flow rate; use air hammers more often
1. Gases containing catalyst particles tend to cause wear on pipeline fittings. 2. The degree of wear increases with factors such as higher gas velocities, higher concentrations, and prolonged operation under such conditions. 3. The term “same frequency” mentioned by the original poster on page 5 does not imply consistency in these factors. 4. Here are a few examples: 4.1. Transporting the same amount of spent catalyst at a low flow rate over an extended period can achieve the same result, but it reduces the degree of wear. 4.2. For valves located at the high-pressure/low-pressure boundary, the large pressure difference before and after the valve results in high-speed flow whenever the valve is opened, leading to significant wear on the valve plates; therefore, using wear-resistant orifices can help reduce this wear
1. Temperature, 2. and the fluidization state of the deslagging agent are mainly related to the ratio of loosening air.