Please have a professional analyze the issues related to furnace drying for the newly built sulfur plant. Thank you
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The company has built a new 20,000-ton sulfur plant. Currently, the company requires 3.5 Mpa of steam for shooting targets. However, external procurement is not permitted. Initially, it was considered to use steam produced on-site for testing during furnace drying, but it is unknown how much steam can be generated. Please advise me on how to calculate it. Another issue is that after reaching 1300°C, it is required to maintain that temperature for 4 hours; if this time exceeds 4 hours, could it have any negative effects on the furnace? How should it be avoided?
Heat is not provided solely by temperature; there must be a certain amount of it, with air being supplied at a level close to the fan’s maximum capacity, and then the gas amount is adjusted according to the furnace temperature. It’s not necessary to heat it to 1300 degrees either. However, it’s no problem even at 1300 degrees; the traditional ammonia synthesis process requires a furnace temperature of over 1300 degrees.
Yes. Theoretically, under normal operating conditions. It should not have any negative impact on the equipment. I'm still worried about potential problems in practical applications, so I've come to consult experts with practical experience.
The furnace temperature is not a problem, as long as it does not exceed the designed value. However, during furnace drying, the gas flow rate is relatively low, and the steam volume is also limited; I think it’s not feasible to use it for target shooting.
We also have hydrogen production facilities, and sulfur is just a small part of that. I wonder, for a sulfur plant of 20,000 units, what is the maximum gas production volume that can be achieved during the furnace heating period, in tons. Please give your advice
The last edit to this post was made by SulfurBlind on 2015-10-14 at 10:33. It’s a little over 1 ton; it won’t exceed 2 tons per hour, I guess. No matter how good your burner is, and even if the air supply reaches the theoretical maximum, that’s still the limit – it won’t be sufficient for shooting targets
Do you mean the total amount of both boilers or that of a single one?
The amount of steam required for shooting targets should be 1.5 to 2 times the normal flow rate; the gas generation volume in the furnace is much lower than that during normal production, and it is not sufficient for shooting targets. Moreover, shooting targets takes a long time; if one fails, they have to keep shooting until they pass, which may take a month or even longer. A stable air supply is required to support this process. Personally, I think using steam generated by oven heating for target shooting is not feasible. Those with similar experience are welcome to share. Additionally, check the designed temperature of the furnace and discuss it with the lining manufacturer; maintaining a constant temperature of 1300 degrees has no impact on the furnace.
As the previous responders have said, it is not feasible to use self-generated steam for target shooting. In addition to the low steam flow rate mentioned earlier, another reason is that when steam is used for targeting, a large amount of steam is released, causing the pressure in the boiler’s drum to drop significantly in a short period of time, which can lead to leaks in the medium-pressure steam system. Furthermore, according to the general requirements for furnace linings, heating to 1100°C is sufficient; why is it necessary to raise the temperature to 1300°C and then maintain it at that level for 4 hours? Is it a requirement from the manufacturer? The furnace drying curve must be provided by the lining manufacturer!