Some process issues regarding the combustion in JN60 coke ovens

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I used to work with switches for seven or eight years. After the new JN60 type coke oven {with dual bottom injection} came online, I was transferred to the task of adjusting the combustion parameters. I was just starting out at this job, so I only had a superficial understanding of all the issues involved; when faced with special situations, I didn’t know what to do. Even when I asked the experienced workers who were in charge of adjusting these parameters, their answers were vague and unclear. There aren’t many technical tests. I have come to the HaiChuan Forum specifically to ask for advice from all the experts and masters, eager to learn humbly, just hoping to do my work well. Live up to one’s sense of responsibility. The problem at present is that the standard heating regime for JN60-type coke ovens is unclear. Since the oven was put into operation one month ago, a temperature difference has persisted; the temperature in some chambers remains too low and fails to rise. The heating time has now been increased by 24 hours, the gas flow rate is 10,400 kj/h, the air damper on the machine side is set at 145, while that on the coke side is set at 175 – these settings were adjusted today in order to reduce the temperature difference. The suction pressure on the machine side is 215 Pa, and on the coke side it is 235 Pa. Currently, the elevation of the top suction pump on the machine side is about 60 degrees, with a descent of around 72 degrees; on the coke side, the elevation is about 62 degrees, with a descent of roughly 72 degrees as well. These are the current parameters; please point out any unreasonable aspects. There are also a few minor issues that I’m not quite sure about, so I’d like to bring them up for everyone’s help in answering. 1. In machine No. 55, the gas on the even-numbered side doesn’t burn completely, but on machine No. 54, the gas on the odd-numbered side does burn completely. Why is this the case? What methods can be used to adjust this? The suction forces at the tops of the positive and negative regenerative chambers are different; for example, on the coke side, the pressure at the top of the chamber rises by 62 Pa in the positive mode and drops by 72 Pa, while in the reverse mode it rises by 65 Pa and drops by 80 Pa. How can this be adjusted? 3. In some furnace numbers, the flame is small, and the amount of gas supplied is clearly insufficient, yet the size of the orifice plate, the opening degree of the dampers, and the opening degree of the small valves remain the same. Why is this? How can it be adjusted? ? 4. What is the cause of the current temperature difference? The entire area on the focal side of the horizontal curve has dropped, causing it to sag. Is the only method available using wire pressure from the machine side? ? These are the current problems. I hope that an expert in adjusting the fire can help to provide answers. I thank them very much for their assistance. If you’re worried about not explaining clearly, you can add me on QQ ； 452960763 or by phone/text message at 13339218873; I can provide guidance in person. Thank you all!