The tar box of the ramming coke in our plant is producing foam, which leaks out; however, the suction power remains normal. I would appreciate advice from those with more experience on how to resolve this issue
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The tar box of the ramming coke furnace in my plant is producing foam and the tar is leaking out, but the suction pressure before the machine and before the primary cooling stage is normal. I would appreciate advice from those with more experience on how to resolve this issue
I’ve really never encountered this situation; if any fellow sailors out there can help explain it, I can only do my best to support this post.
This post was last edited by dmz329227 on 2011-5-12 at 19:35. I think there is a pressure difference between the inside and outside; the liquid level in the tar box is not high enough to counteract the pressure of the gas in the gas collection pipe, which causes bubbling to occur from the tar box. Personally, I think it might be necessary to increase the liquid level of the tar-ammonia mixture in the gas collection pipe (i.e., increase the amount of liquid sprayed). Additionally, raising the height of the tar box slightly could help increase the height of the liquid seal. It’s also possible that there is too much tar residue in the suction pipe or within the tar box, causing blockages that result in tar leaking out. Try cleaning the tar box by introducing steam and high-pressure ammonia
The main problem at the moment is that the level of liquid in the tar box is normal; however, foam forms on the surface, and this foam keeps increasing until it overflows. I would appreciate some advice from those who are more experienced
Yesterday, it was found that the tar contained a high level of water; it is suspected that desulfurization waste liquid and thiamine waste liquid were discharged into the mechanical clarifier. Could this be the reason behind the difficulty in separating ammonia from tar, resulting in a lot of foam when the recycled ammonia is sprayed?
Reply to 1#: It seems quiet over there; it appears your plant has newly commissioned coke ovens. 1. Increase the valve opening for ammonia, open all the branch pipes, and adjust the main pipe accordingly based on the actual conditions – check what the pressure at the end is Not less than 2.5 kilograms. 2. There is a large valve behind the air intake pipe (for removing chemical substances); open it wider. Close the temporary ammonia valve tightly (the one used for operations below). 3. Check whether there are any debris in the tar box. 4. Check whether the intake pipe is installed as designed. It has a certain slope. Based on my experience, I should be able to help you solve the problem; I hope it can be of assistance to you. If this solves your problem, please leave me a message or add me on QQ at 738681712
It’s black foam; our factory has been using it for 5 years. It’s only been around recently.
Reply to 1#: It’s quiet there; check whether there is a lot of tar or other deposits accumulated in the gas collection pipe and at the bottom of the suction pipe near the coke oven
Agree with what was said above; clean it up quickly