APPARATUS FOR MANUFACTURING WATER GRANULATED SLAG, AND METHOD FOR CONTROLLING THE GRANULE SIZE

摘要

PROBLEM TO BE SOLVED: To manufacture a water granulated slag having a desired granule size by controlling simply the granule size of the water granulated slag manufactured in a water granulation step of a nonferrous smelting process.;SOLUTION: In an apparatus for manufacturing a water granulated slag, in which a water granulated slag C water-granulated from a molten-state slag A discharged from a smelting furnace in a water granulating launder 102 with a water-granulating water B is made to settle in a water-granulating pit 104, the water granulated slag C water-granulated in the water-granulating launder 102 is made to flow in the water-granulating pit 104 together with a water-granulating water B1; a water-granulating water B2 is made to flow directly into the water-granulating pit 104 through a bypass flow path 103b branched from a flow path 103a feeding the water-granulating water B1 to the water-granulating launder 102 without passing the water-granulating water B2 through the water-granulating launder 102; and the overflow amount of a water granulated slag C2 made to overflow from the water-granulating pit 104 together with the water-granulating waters B1, B2 is controlled by the flow amount of the water-granulating water B2 made to flow directly in the water-granulating pit 104 through the bypass flow path 103b, thereby controlling the granule size of the water granulated slag C1 made to settle in the water-granulating pit 104.;COPYRIGHT: (C)2012,JPO&INPIT