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The maintenance time calculated above includes the operation time for the last batch; the actual maintenance time should be the cycle time multiplied by 60, minus the number of holes multiplied by the operation time per batch, that is, 17×60 – 63×14

Industrial analysis generally includes parameters such as moisture, ash, volatile matter, and sulfur content; in some cases, the phosphorus content is also analyzed； The key hot-state indicators of coke include high-temperature reactivity CRI and strength after reaction CSR, etc ； The annual output of a coke oven can be calculated by first determining the amount of coal loaded, and then using the coke yield to arrive at the figure; it shouldn’t be very complicated.

What was said upstairs is incorrect. Industrial analysis generally involves the determination of moisture, ash, and volatile matter, as well as the calculation of fixed carbon; sulfur content and phosphorus content are not included. These elements are only part of the chemical composition of coke

How is the total focal length determined? What is the calculation formula? Thank you

The industrial analysis of coke includes moisture, ash, sulfur, volatile matter, as well as cold strength M40 and M10, and hot strength CRI and CSR. (Note: The sulfur content in coke is included in the industrial analysis; this can be found in the book \"Coking Production Technology\".)

Formula for calculating the annual output of a coke oven. Poster: Why do you need to use a formula to calculate the annual output? Adding up the production volume for each month gives the annual production volume, and the figures are very accurate. Don’t you have daily and monthly statistics there? Only when the turnaround time remains unchanged is there a formula available. The formula is: Annual output of the coke oven = (Number of carbonization chambers in the coke oven ÷ Turnover time) × (365×24) × Average amount of coke produced per chamber. As for why it’s 63-1? For example, the coke pushing schedule for a certain day might look like this: Charring chamber number – Coke pushing time……… 223:52, 120:06, 222:38……… Since the coke pushing schedule is arranged according to the times at which coke is pushed out, what we see on this schedule are the respective times. For instance, at 0:06, coke is pushed out from chamber number 12, and at 2:38, coke is pushed out from chamber number 22 (with 152 minutes allocated for maintenance work). 0:06 marks both the time when coke is pushed out from chamber number 12 and the start of the maintenance period; in other words, the maintenance time includes the time required for operating chamber number 12, so the number of times coke is pushed out should be reduced by 1.

Then, how is the water seal of the coke oven’s vertical flue inspected? What should be paid attention to?

Regarding the calculation of the full focal length, you can measure it on-site or derive it theoretically. I. On-site measurement: Generally, the control room can display the amount of coal loaded in each carbonization chamber, denoted as m1. After the coke is taken out of the chamber, it is placed on the ground and transported to a weighing station where its weight is measured, denoted as m2. The overall coke yield is calculated by dividing m2 by m1, that is, K = m2 ÷ m1 × 100%. It is also possible to measure several wells and take the average. II. Theoretical derivation: Based on the fact that all the ash in coal is transferred to coke (i.e., material balance of ash), the overall coking rate K can be determined. That is, 1×A_coal = K×A_coke; therefore, K = A_coal ÷ A_coke × 100%

Moisture, ash, volatile matter; thermal properties include reactivity and strength after reaction