The electric furnace caught fire during the heating process; now the factory insists on continuing to raise the temperature. I’m a beginner and need help! !
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The temperature in Inner Mongolia is very low at the moment, but the management has ordered that production must continue. The day before yesterday, our factory had to stop operating due to issues with the waste heat boiler; at 22:48 in the evening, the operator responsible for gas supply turned on the furnace to raise the temperature. When I took over at 23:45, I found that during the night shift, from when the previous operator left until I took over, an hour had passed. With the electric furnace running at full capacity (our furnace’s power isn’t sufficient but it can still be used), and all auxiliary systems turned off, the inlet temperature of the furnace dropped from 290 to 280. I suspected that the previous operator was trying to sabotage me; he was an experienced worker while I was a newcomer, and yet he failed to notice any problems while I did. Upon seeing this, I contacted the electrician to check the furnace. Upon opening the control panel, I found that part of the furnace’s wiring was damaged. At that time, 6 out of 24 furnaces were damaged. I thought that even with 6 furnaces damaged, such problems shouldn’t occur; I suspected that the night shift hadn’t turned off the furnaces properly when shutting them down, which caused the damage. After carrying out emergency repairs for 2 hours, I started the furnace again at a low speed, turned it up to full capacity to increase the temperature, and the inlet temperature rose from 220 to 290 before gradually increasing to 315. When the intermediate temperature reached 1 point, it climbed to 330. By that point, the temperature seemed to stop rising further. The process engineer said it was now possible to increase the air flow rate, so after the dispatcher did that, I left work. I just heard that after work, the people on the day shift were unable to bring the temperature up to the required level. On the other hand, yesterday the electric furnace on the night shift caught fire, which rendered it completely unusable. Yet the manager ordered that the temperature be raised anyway; I heard that they plan to use steam instead of the regular heating method. I’m about to go back to work now – could you ladies give me some advice?
I’ve come to learn*! ! Communicate more to learn new knowledge!
Could you send me your flowchart? I’m not sure your process is easy to explain
Just send it to my email at 275937483@qq.com
This post was last edited by 654262293 on 2012-12-3 15:01. What are the steam pressure and temperature? Is it superheated steam?
kgdwcwiiw@163.com; Let me check it out first and then get back to you!
It is best to heat the steam belt furnace temperature using a waste heat boiler! Using steam to raise the temperature can only lower the converter temperature! How can a high-conversion converter’s temperature be increased? Please, the original poster, share your company’s heating methods so we can discuss them together!
Superheated steam can barely rise to medium pressure
This is easy to handle; there’s no need to stop the process. By introducing slightly superheated steam, both the steam and the gas react during the intermediate transformation, with no impact on the low-temperature transformation.
Could the original poster please clarify? Is it the normal heating process during sulfidation, or is it the heating that occurs after a short stop for maintenance? If it’s the normal sulfidation process, an electric furnace is necessary; of course, superheated steam can also be used, but it cannot be applied directly to the catalyst. In the latter case, when the temperature reaches 330 degrees, the catalyst being active allows the use of the heat generated by the reaction. If possible, the oxygen content in the feed gas can be increased (this depends on the type of catalyst used, as different catalysts have different activation temperatures); in this case, an electric furnace may not be needed. However, it’s important to avoid any liquid presence, and the air flow rate should not be increased too quickly. It would be helpful to know more about the process and the type of catalyst used