Number of coke oven holes
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How many holes can a single coke oven have at most? Thank you
As far as I know, I’ve only heard of 72 holes. This mainly depends on the turnaround time, pusher cycle, and maintenance time.
The number of holes in a coke oven is not fixed; it depends on factors such as the height of the carbonization chamber, production volume, and turnover time. The \"Access Requirements for the Coking Industry\" stipulate that the coking capacity must be no less than 1 million tons per year, and the height of the carbonization chambers must be at least 5.5 meters. Therefore, in China, for coke ovens with a carbonization chamber height of 5.5 meters, a capacity of 1 million tons per year is usually achieved using 2 ovens with 50 chambers each; a capacity of 1.3 million tons per year requires 2 ovens with 65 chambers each; and the highest capacity of 1.5 million tons per year is attained with 2 ovens equipped with 75 chambers each.
What I know is that it also has 72 holes on one side. A set of 144 wells
Ours is 2×75 holes with a capacity of 1.5 million tons per year; it should be the maximum number of holes per furnace.
As far as I know, it’s 72 holes; this mainly depends on the turnaround time, that is, how many coke pushers are arranged to work simultaneously
2*72 holes is probably the most economical number of holes, as determined by the design institute based on considerations of investment, efficiency, and operation.
What are the specifications and models of the 2*75-hole coke ovens there, and what is the heating method – ramming or top-loading?
The maximum number of furnace holes per coke oven is determined by the coking time and the operating time of the oven’s machinery. For example, in a 58-Ⅱ type coke oven with a carbonization chamber width of 407 mm, the turnaround time is designed to be 15 hours. Two coke ovens share one quenching vehicle, while other machinery is provided separately for each oven. In this case, the operation of the quenching vehicle is more demanding than that of the other machinery; therefore, the operating time required for the quenching vehicle should be used as the basis for determining the maximum number of coke chambers per oven. The operating time for one cycle of the coke quenching vehicle is 5–6 minutes. Therefore, for a 58-Ⅱ type coke oven with a chamber width of 407 mm, the number of chambers per oven is given by N = (15–2)×60/(2×6) = 65 chambers. The 2 in the numerator represents the maintenance time, while 2×6 in the denominator represents the time required by the coke quenching vehicle to operate each chamber of the oven (in minutes).
Another method for determining the number N of carbonization chambers: The number N of carbonization chambers depends on the number n of chambers that a coke oven machine can operate per day for loading coal and removing coke, with the following relationship: n = 24N/τ. Here, τ represents the turnover time. In China, each coke oven can handle about 5 chambers per hour for these operations; worldwide, the maximum number of carbonization chambers per coke oven is 120, while in China, the usual number is between 36 and 65.
The number N of carbonization chambers in the coking workshop of a coking plant can also be determined based on the annual demand for coke: N = (G•τ) / (365×24KρV). Where: G is the annual output of the coke ovens, in tons per year; τ is the turnover time, in hours; K is the total coke yield; ρ is the density of coke; V is the effective volume of the carbonization chamber