| 摘要 |
<p>PURPOSE:To utilize the heat of combustion of combustible gas by estimating the amount of combustible gas generated on the basis of red-hot coke feed pitch, the chamber level of a preparatory chamber, etc., and determining the corresponding amount of supply air. CONSTITUTION:Operational data of a coke dry quencher, such as the chamber level 10 in a preparatory chamber 2, the amount 11 of coke discharged from the lower part of a cooling chamber 3, the amount of combustible gas generated from cycling gases such as CO or H2 as determined with a gas analyzer 5, steam generation temperature 13, a gas temperature 14 at an inlet of a waste heat boiler, and the amount 12 of generated steam are sent to a process computer 7 to carry out feed-forward control of the preformulated influence against the combustible gas generation due to the variations in red-hot coke feed pitch 9, the chamber level 10 of the preparatory chamber 2 and the amount 11 of coke discharged from the lower part of the cooling chamber 3 as determined by the discharging schedule. In addition the current concentration of combustible gas is fed back to thereby introduce the air into a suction port for cycling gas below the preparatory chamber 2 in such an amount as to minimize the concentration of combustible gas in the cycling gas.</p> |
