How is the coking time determined when the number of outputs changes?

2010-11-09View Original

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We have 2X55-hole ramming coke ovens in operation; currently, a three-shift system is used, with 2 ovens of 20 holes each being produced per shift (120 holes per day in total). The coking time is 22 hours, and the operating time for each hole per oven is 20 minutes. If it is to be changed to 2 X15-hole batches per shift (90 holes per day), how should the coking time be determined?

Reply #22010-11-09

Coking time = Turnover time – Empty furnace time (about 3–5 minutes): ((2X55X24/90)X60–3)/60 = 29.2833 hours. The coking time for 90 furnaces is 29 hours and 17 minutes.

Reply #32010-11-09

Reply to 2# SwimmerUnrestricted: 24÷90＝X÷110; X=29.33. X represents the turnaround time. Assuming the operation time is 5 minutes, the coking time is 29.33×60－5=1754.99 minutes, which equals 29.25 hours

Reply #42010-11-09

The simple calculation is 22*120=90*X, so X=29

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How is the coking time determined when the number of outputs changes?

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