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Main wind distribution
Main wind distribution
The main air distribution pipe is the key component of the regenerator of the catalytic cracking unit. Scientific design and precise manufacturing are the basic conditions to ensure the normal fluidization, delivery and life of the catalyst in the reactor. It plays a role in the regeneration effect, catalyst delivery and device catalyst loss. ** Important role. Reasonable structure and material selection determine the performance and service life of the distributor. At present, there are mainly two types of distributors: circular ring and branch type. No matter which type of distributor, it is necessary to ensure that the gas is distributed evenly on the entire section and to ensure a certain injection speed. Because the gas velocity is very high and accompanied by catalysts, the wear strength It is quite large, so the material of the nozzle must be abrasion-resistant to ensure that it will not be worn out during the start-up cycle. At present, the mainstream material is wear-resistant ceramic nozzles, and a series of finalized products have been produced.
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