Clogging problem of sewage stripping acid gas deliquidizing tank

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My equipment is undergoing maintenance these days, and the heavy oil catalytic unit is adding desulfurization (gas separation), sewage, and sulfur production. I am responsible for sewage stripping and ammonia refining. During the line cleaning process, it was found that the deliquifying line of the acid gas deliquifying tank at the acid gas outlet at the top of the stripping tower was not good enough. It was not good enough after two days of steam purging. After the steam was stopped, the lower flange of the deliquifying line valve had to be removed and processed manually. The refined squad leader of the team took a drill for more than an hour, and it took a lot of effort to get through. The scene at that time was "spectacular"”: Something like yellow mud spurted out along with the residual pressure of steam. The squad leader came forward several times before reluctantly closing the valve. Since the dewatering pipeline was still leaking, there was no time to plug the leak, so the liquid could only be drained along the leakage point. From the time I supplied steam at four o'clock in the afternoon and started purging again, when I came to work the next morning, I was dumbfounded when I saw the scene.: The area of ​​dozens of meters in radius, including the pump room, was covered in black sludge-like stuff, accompanied by a foul odor! Haha, our equipment director’s nose almost became so angry! The process director "criticized" me, and then asked the equipment director to find someone to clean the site, but he said unwillingly that he wouldn't do it. Of course, we later asked a team to deal with the scene, and several women cleaned it up for a whole day. When I was able to deal with it, I picked up a few pieces of sprayed stuff at the scene. Haha, what just came out was liquid, and within half a minute it immediately formed into a solid block. It was earthy yellow. It should be the crystallization of sulfide, but it was not the crystallization of ammonium hydrosulfide. Because later when I was cleaning the deliquidating tank, the large crystals taken out from it were in the yellow color of crystals. At first glance, it was ammonium hydrosulfide! The taste is also very "pure"! It's not like this khaki thing, which smells a bit smelly, and it's not like the "unique" smell of ammonia hydrogen sulfide. This kind of thing has been found in the liquid sulfur collector after the hydrogenation reactor at the sulfur production station. When crushed, it is like soil, but harder than soil. Let’s analyze what it is. Colleagues from various fraternal units, has the deliquidating line of the acid gas deliquidating tank in your unit also been blocked? Have you ever discovered a similar situation? Please share your good experiences and let us all learn from each other. * , let’s make progress together!