(March 19, 2011 One Question per Day) What to do if there is no steam for boiling in the waste heat boiler for sulfur recovery?
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This post was last edited by zhezi2009.wang on 2011-3-19 at 13:19. A new set of equipment is about to go into operation, and it has been found that there is no steam available for heating the sulfur recovery waste heat boiler. I would like to ask fellow experts: what impacts will this have on future start-up and shutdown processes, and how can this issue be addressed through other methods?
What is the sulfur content in the fuel gas? If the sulfur content is very low, fuel gas combustion can be used to heat the furnace. If the fuel gas is not purified, then find some external steam somehow. In any case, the boiler temperature must be above the dew point before acidic gases are introduced!
Is the poster referring to the steam used for boiling water in a stove? Normally, a heater isn’t needed, right? I don’t understand
We don’t need a special heating pot here; normal temperature rise is sufficient
I don’t understand; is it the steam used to replenish pressure in the remaining boiler? It’s not needed in normal situations, nor is it useful while driving; it doesn’t have much impact. Its main purpose is to provide protection in case there’s a shortage of water in the boiler
Is it not necessary to boil the furnace first and then light the fire at the start of production?
First, heat the pot with steam from a boiling pot, and only then start heating the oven
What if there is no steam from the cooking pot in the design or equipment?
I think there’s something wrong with what everyone is saying; please consider my suggestion: Steam on a boiler serves two purposes: 1； When the sulfur production furnace 2 is started up, the condensation effect in the boiler cools the flue gases, causing the water vapor present in them to turn into a corrosive liquid. This leads to corrosion of the furnace tubes, resulting in an increased likelihood of leaks at the outlet end. This phenomenon is related to the sulfur content in the gas. To prevent this from happening, during boiler startup, steam should be increased gradually to keep the boiler temperature above 120 degrees. Therefore, auxiliary steam is necessary
Steam is definitely necessary; it’s needed to heat the boiler before driving, and it should also be used during short stops
Steam is generally used to warm the pot, right? For boiler cleaning, deoxygenated water is still used; sodium phosphate or sodium hydroxide is added to this water, with the concentration being carefully controlled. The boiler pressure is increased and decreased (a process known as the breathing method) during cleaning. The purpose of this process is to remove rust, grease, and other impurities from within the boiler