To provide a pressure regulation device for reliably relieving the internal pressure of a vessel and enhancing the safety, a transport vehicle, a molten metal feed system, and a molten metal feed method.
There are provided (a) a vessel which stores molten metal and communicates the molten metal between the vessel and the outside by utilizing the differential pressure, and has no safety valve to relieve the pressure in the vessel when the pressure in the vessel exceeds a predetermined value, and (b) a pressure regulation system to increase and/or decrease the pressure in the vessel, and an air hose which has an interface part attachable/detachable to/from the vessel on a tip thereof and forms a gas flow passage between the pressure regulation system and the vessel are provided on the line between the pressure regulation system and the vessel. A pressure regulation device having a safety valve to relieve the pressure in the vessel when the pressure in the vessel exceeds a predetermined value and a first filter interposed between the safety valve and the air hose is mounted, and a transport vehicle to transport the vessel while attachably/detachably holding the vessel is provided.
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ICHIKAWA NARUMI
SUZUKI KAZUNORI
IYODA KOJI
NOGUCHI KENJI
ABE TAKESHI
