Asking for help about JN60-6 coke oven strengthening production experience
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Our factory belongs to a steel conglomerate, and the coke gap has always been relatively large. Now, because the price of purchased coke is higher than that of self-produced coke, the company has high coke output requirements in order to reduce costs. Currently, the two 6-meter coke ovens in our factory have a 19-hour turnaround production. The company is still considering shortening the coking time... I wonder how many of the shortest coking times of the 6-meter furnaces of our brother units have been done? If we really want to shorten the coking time, what issues should we pay attention to in terms of oven temperature control and production operations?
Have you considered shortening the operation time (the effect is not very obvious, but it is also a means)
I don't know who made the equipment for your four major vehicles. I know that you can control the amount of coal loaded from a single hole, thereby increasing the coke output. Shijiazhuang Coking Plant does better in this regard. Want to ask: Do you use spiral feeding or hyperbola for coal loading? , the speed of spiral feeding must be controlled to prevent material clogging.
Your coke oven has been in use for several years, and the JN60-6 reinforced design seems to last 18.5 hours.
If the coking time is shortened, the coke quality will be affected to a certain extent.； The furnace temperature should be adjusted upwards, which will form more graphite and allow for better burning and beating work. ； We also need to do a good job in measuring and adjusting the iron parts. ； If the operating time remains the same, the maintenance time will become shorter and the requirements for the equipment will become higher. ； The designed coking time of JN60-6 coke oven is 19 hours, and the enhanced production can be 18.5 hours.
Thank you all, the four major trucks in our factory are made by Jinan Iron and Steel Co., Ltd. The coal trucks are screw feeders... They are furnaces from 2006 and 2008, respectively.
The designed coking time of the JN60-6 coke oven is 19 hours. Ours is the JN60-6 coke oven. We are currently strengthening production and our coking time is 18:40. We use high-temperature operations. The standard temperatures on the coke side of the machine are 1290 and 1340 respectively. The center temperature of the coke cake is controlled at around 1080. The overall coke quality is very good. The monthly average M40 is around 87 and the heat intensity is above 63.5.
What is the taper of the carbonization chamber of JN60 coke oven? Why is the temperature difference between the machine and the coke so big?
Data I've seen: JN60-6 coke oven, the coking time is 18 hours and 20 minutes, the coal moisture content is 10.5%, the coke cake center temperature is 1030, and the coke quality is * * Secondary metallurgical coke.
7# Qin Jingben. The quality of your coke is extraordinary. Is it dry quenching? Can you tell me about the coal blending situation?
Our factory is a JN60 coke oven. During intensive production, the shortest coking time is 18:15, and the operating time is 9 minutes. The standard temperature is determined according to the moisture content of the coal. The maximum timing of the coke side is 1305 and 1355 respectively. The coke quality is still good. The monthly average of M40 is about 87, the average of M10 is about 6.0, and the thermal intensity is above 63.5. The amount of so-called "coking coal" is more than 50%