Operational characteristics of coke batteries

摘要

According to the new edition of the Operational Rules for Ukrainian Coke Plants [1], the operational characteristics of coke batteries must be reconsidered with each change in batch properties - specifically, the yield of volatiles (by more than +1.5 percent), the thickness of the plastic layer (by more than + - 2 mm), the moisture content (by more than +2.0 percent), and the content of the < 3 mm class (by more than +3.0 percent). Taking account of the frequency and significant changes in the quantity and properties of coke batch today, enterprises must employ characteristics that take account of possible changes in the operating conditions. Such characteristics have been under development for a number of years by Markokhim Joint Stock Company, in collaboration with the Ukrainian Chemical-Technology Institute (UCI). These results must be generalized and supplemented in view of the new requirements in [1]. That is the goal of the present work. The list of operational characteristics established in section 7.182 of the 2001 edition of the Operational Rules (OR) includes: the one-time batch charge, the height of the under-roof space, the mass of the planned rakings; the coke quality index; the final temperature along the axis of the coking charge; the drive current for the push rod of the coke discharge unit; the temperature in the inner heating channels; the gas consumption in furnace heating; the pressure (and rarefaction) distribution in the heating system; the air excess in gas combustion; the gas pressure in the gas tanks and the pressure of the ammoniacal water for irrigation and injection; and the coking period.