flue suction
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Our plant uses 4.3-meter ramming coke ovens, with large chimneys on the coke side. Currently, the air intake door on the machine side is at 19 cm, and that on the coke side is at 21 cm ； Suction force on the machine side: 205 Pa, on the coke side: 210 Pa ； Terminal pressure 1750 pa ； 24-hour coking time. The average rise on the suction side of the regenerative chamber on the side that can be adjusted is around 40, while the average drop is around 70 ； The rise on the focal side is around 20 on average, while the value on the focal side itself is around 40 on average. I’m not sure how to adjust this I would appreciate some guidance from an expert.
Reduce the air inlet size, increase the suction force in the smoke diversion ducts, and at the same time reduce the size of the flip plate
Is it to reduce the air inlet on the focused side, increase the suction force in the smoke diversion duct, and at the same time reduce the size of the flip version?
Yeah! However, it is necessary to ensure that the pressure in the fire monitoring system remains at a positive level of 5-10 Pa
The suction force on the focal side of yours is too low; it should not be less than 30 Pa. Is the resistance in the heat storage chamber on the focal side too high? Measure it first·
I think we should first measure the pressure difference at the top of the storage volume to see if there is air leakage at the sealing wall of the regenerative chamber. Let’s become friends and stay in touch; the values you set are fine.
Our unit is also facing the issue of sulfur dioxide monitoring in flue gases. To reduce sulfur dioxide levels, it’s necessary to start at the source: the proportion of coal used, as well as the total sulfur content in the gas, and then hydrogen sulfide levels in that gas. The effectiveness of desulfurization depends on these factors. Our unit’s target is to keep sulfur dioxide levels below 100 mg per standard; we have already met this target by addressing the issues mentioned above. Additionally, I think it’s important to adjust the air inlets based on the height of the coal piles and other relevant conditions. The amount of air supplied can affect sulfur dioxide emissions; however, if the previous conditions aren’t met, adjusting the air inlets carelessly may result in poor coking quality. You can contact me for more details via my QQ account: 121218591