Weekly Topic (10.8-10.15): Discuss the three spin forms in catalytic cracking and their advantages and disadvantages
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This post was last edited by lijianhuai on 2011-10-7 09:06. The weekly topic discussion event in the refining area welcomes active participation from everyone; we also hope that people will come up with more valuable topics, and the moderators will award rewards of 5-20 wealth points. Those who post excellently will receive a reward of 10 to 50 Wealth or an equivalent amount of Charm. Let’s discuss which form of catalytic cracking trirotor is suitable Vertical? Horizontal? Multiple tubes? Single tube? Pros and cons? Please talk about how it is used in your organization? What problems have you encountered and how were they solved?
This post was last edited by jbcyf on 10-10-2011 at 13:41. The current three-spin combined tube consists of a single tube with a larger diameter instead of multiple tubes; it can be designed in vertical or horizontal configuration depending on the processing capacity required. The failures I have encountered with the three-spin system include... The discharge tray is blocked, the upper and lower grates are deformed, the critical nozzle is blocked, there is excessive fine catalyst particles, the flue gas in the regenerator contains too much moisture, and the designed linear velocity is low. Low linear speed causes tube blockage; reduce the amount of steam used in the regenerator, and opt for a three-spin type with high efficiency.
At present, vertical multi-tube triple spinners and horizontal multi-tube triple spinners are mainly used in our country. However, as the equipment becomes larger, the proportion of slag in the raw materials increases, and the regeneration temperature rises, the multi-tube triple spinners gradually reveal their shortcomings: individual tubes have high efficiency, but the overall efficiency when they are combined is not high; individual tubes wear out quickly, and vertical types can handle a greater volume of material compared to horizontal types
Our company uses a vertical multi-tube triple-spinning system, and the sorting performance is fairly good. The main problems are that it’s difficult to empty the tank containing the fine powder resulting from sorting; the discharge line gets clogged frequently. Additionally, we’re not sure how to deal with this fine powder – does anyone have any good suggestions?