If the experts can help me resolve my confusion, I’m willing to top up their accounts. I’d like to ask for advice regarding a leak in the heating coil of the liquid sulfur tank...

This post was last edited by ylb913 on 2016-9-2 at 12:15. Please check my topics; I posted a similar one in 2014. I don’t have many themes; there are around 100.

The last edit to this post was made by ylb913 on 2016-9-2 at 12:16. My previous topic discussed how to add temporary heating coils; of course, any coils that are missing must be shut down first. Then there’s the issue of how to extract water; back then we relied on siphoning, or we could use an air pump (an air-driven diaphragm pump) to do it.

I’m mainly looking for ways to remove solid sulfur. The vehicle will only be parked for 15 days, after which it won’t be parked any longer, so time is very limited

Can steam be sent to the leaking coil again? If possible, send vaporized sulfur. Add temporary steam pipes and ensure proper insulation. It depends on the size; generally, small channels take about 2 to 3 days to dissolve, after which it can be pumped out. If the pump cannot push fluid out, the tank can be sealed, a 50-mm insertion tube can be installed, electric heating can be added, and nitrogen can be pumped into the tank to force the fluid out. The simplest method is manual cleaning, which is time-consuming and labor-intensive. The water flow is fast; using a siphon, it was done in half a day.

Thank you! ! ! The leaking coil can supply steam, but the sulfur does not liquefy and remains in solid form. It’s not clear whether this is because 80 centimeters of water prevent the temperature from rising, or because the sulfur at the bottom has turned into liquid sulfur while the surface remains solid. We are a tank with dimensions of 16m*7m*2.1m. May I ask, does installing a temporary steam pipe mean adding it to the solid sulfur after the water has been removed, and then waiting for the sulfur to melt before using a pump to remove the liquid sulfur? Finally, remove the temporary pipe and repair the damaged steam pipe. We only have about 13 days for the project. The main consideration is to avoid using fire as much as possible inside the tank. Thank you! ! !

First, check whether the leaking coil is blocked by sulfur, which prevents air from passing through. It’s necessary to remove the water first; otherwise, it will absorb all the heat. If you decide to use a temporary coil, take a look at the posts on floor 3 – the person there has quite a bit of experience

This post was last edited by ylb913 on 2016-9-3 at 15:08. The leaking steam coil must be stopped; otherwise it’s as if water is still being poured into the liquid sulfur tank. The issue of solid sulfur blocking the area around the leak in the heating steam is another matter, but ultimately, even if the sulfur is melted using temporary coils, water is still being added. When steam condenses, pressure must be maintained in order to maintain a certain temperature; this is the relationship between the saturation temperature of water vapor and its saturation vapor pressure. Using steam tape to blow on solid sulfur will not result in the sulfur melting (theoretically it should work, but the steam flow rate is not sufficient to meet the theoretical requirements). Regarding this issue, the advice I gave above is based on my own practical experience. Rescuing a situation is like putting out a fire; one shouldn’t speak rashly on this matter. It’s useless to talk and speculate randomly without any practical approach; just talking without taking action certainly won’t work either. In the end, it’s up to you to decide what to do: there’s no need for much explanation as to the fact that water must be pumped out. 1. To resolve the problem in a short time, it is necessary to have the higher-level management departments in the factory take charge; the higher up the hierarchy, the more manpower and resources can be mobilized. These can be used either to speed up the construction of temporary piping systems or to deploy a large number of people to work round the clock to carry out the tasks. ——High-pressure water (it’s easy to find units that use high-pressure water pumps for cleaning) can be used to crush solid sulfur into powder, and it is also possible to use a submersible pump (slurry pump) to extract it. 2. If it really can’t be resolved in a short time, there are still ways around it. The method I mentioned of using temporary coils is based on our actual experience, and its effectiveness is much better than expected; it can handle one operating cycle without any problems (we once used temporary coils for three years), and it’s fine to replace them with proper coils during the next maintenance session. The link to my topic is http://bbs.hcbbs.com/thread-1298242-1-1.html [Original] Story Two from the scene: Replacement of the coils in the liquid sulfur tank

Thank you to this expert! Could you please leave your phone number? I have some specific questions to ask, and I’d also like to top up your phone balance as a sincere thank you! !

A leak in the heating tube of the flow cell is a troublesome issue; if it’s a certain group of heating tubes that are leaking, stop the steam supply to that group and use a diaphragm pump to pump out the water from the cell； If it’s groundwater seepage, that’s a problem. Waterproofing measures need to be implemented underground; after some time of operation, a large amount of sulfur accumulates at the bottom of the tank. Stopping operations to clean it up is labor-intensive, and it’s not certain that the source of the leakage can be identified ； First, turn off the heating for the group that is leaking; otherwise, a layer of sulfur will form on the surface of the sulfur. Second, increase the temperatures at the outlets of the first, second, and third cooling stages. If the daily production volume is high, it’s fine to turn off the heating for the first and second groups. When the liquid level in the flow tank rises, the ambient temperature increases, and the sulfur will not solidify ； If nothing else works, it is possible to determine which group of heating pipes is leaking; in that case, a temporary heating pipeline can be fabricated externally and then installed there. Of course, due to the high level of liquid in the flow cell, it can only be placed below the opening of the flow cell. (If there’s anything wrong, please don’t criticize.)