Fire extinguishing methods used when FeS self-ignites
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What are the fire extinguishing methods used when FeS catches fire?
Cold water is generally used to extinguish the fire, and cooling down also prevents FeS from catching fire again
When general equipment is shut down for maintenance, especially when there is a large amount of FES in the distillation system, it can be cooled down by using water; if it needs to be removed, it should be buried promptly to prevent spontaneous combustion.
Water spraying fire extinguishing method, Fire area clearance fire extinguishing method, Air isolation fire extinguishing method, Inhibitor-based fire prevention and extinguishing
The simplest method is to quickly introduce steam, followed by pouring in cold water.
“The view that cold water is generally used to extinguish fires and that cooling can also prevent FeS from catching fire again is absolutely incorrect. To prevent the formation of ferrous sulfide, cold water can be used, surface passivators can be applied, or oxygen-containing gases can be excluded. If a fire has already broken out, cold water is generally not used, mainly to prevent the equipment from undergoing annealing or experiencing uneven thermal stresses that could cause cracking. It is best to use fire-suppression steam to extinguish the fire first; once the temperature of the equipment itself drops below 140°C, then cold water can be applied to prevent another outbreak of fire. Finally, clean up the ferrous sulfide and bury it deep underground for medical use
The analysis or suggestions from the friend on the 6th floor seem quite reasonable; I’ve learned something from them. Thank you to the 6th floor and LZ. I’m not sure if there are any fire-fighting incidents in this regard. Are there any incident reports of equipment annealing caused by the use of cold water?
I also recommend using steam to extinguish the fire first, and then using water once the fire is out! However, if there is someone inside the device, it should still be extinguished with cold water. Inhaling steam can cause suffocation and death!