Device for limiting the ultimate consequences of a failure to bring under control a mass fire in a storage bin for hazardous materials

Device located in a closed containment enclosure surrounding a storage bin for limiting the ultimate consequences of a mass fire that is not brought under control in said storage bin comprising a closed tank positioned on said storage bin in said closed containment enclosure with said tank including at least one opening therein in communication with the closed containment enclosure and a source of non-flammable liquid, an internal chamber for providing direct communication between said tank and said storage bin via a flue pipe, at least one external chamber for providing direct communication between said tank and said containment enclosure via at least said one opening in said tank, and with said device further comprising a fireproof shield enclosing said tank, and a liquid level control system for controlling the level of said nonflammable liquid in said tank, and wherein said tank further comprises:

• an upper wall, a lower wall, lateral walls, a plurality of openings, and
• separation elements extending from each opening at a location approximate said upper wall to a location a predetermined distance above said lower wall, with said separation elements defining said internal chamber, and said at least one external chamber and with each external chamber having a surface corresponding to a surface of each opening in the tank.