Сучасні технології переробки пальних копалин : міжнародна науково-технічна конференція

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Coke segregation in the dry coke quenching unit
(Національний технічний університет «Харківський політехнічний інститут», 2023) Kravchenko, Serhii; Miroshnichenko, Denis; Borisenko, Oleksandr
The main reasons for the appearance of coke segregation when it is loaded into the chamber of a dry coke quenching unit (DCQU) are considered. The formation of the distribution of coke particles of different size along the height and cross-section of the quenching chamber begins already when the coke is unloaded into the DCQU prechamber and is determined by segregation processes. In the quenching chamber, zones with coke of different fractional composition and with different hydraulic resistance are formed, which, in the end, leads to different final temperatures of the quenched coke and, as a rule, to the need to increase the flow rate of the coolant. It is shown that the segregation of coke is already formed when it is discharged from the coking chamber into the coke carrier and then transferred to the DCQU prechamber. Methods for suppressing coke segregation occurring in a coke carrier when loading into a prechamber were tested on a scale model of the DCQU.