High-altitude heating of coke ovens
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Some people say that increasing the pressure at the fire viewing hole can improve upward heating. Is this sentence correct? What is the reason?
The flow velocity in the rising flue decreases, and the diffusion rate drops as well, but the effect is limited
That’s definitely right; by increasing the pressure, raising the amount of exhaust gas circulation, and lengthening the flame, it is possible to achieve improved upward heating.