METHOD AND APPARATUS FOR WATER GRANULATION OF MOLTEN SLAG

PROBLEM TO BE SOLVED: To provide a water-granulated slag from which the elution of heavy metals can be economically and securely inhibited without using a flocculant etc., by a water granulation method of molten slag, wherein the risk of heavy metal elution is reduced, by decreasing the concentratio...

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Bibliographische Detailangaben
1. Verfasser:	INOUE TOMOYO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DISPOSAL OF SOLID WASTE LIME, MAGNESIA MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROMSOLID MATERIALS OR FLUIDS METALLURGY PERFORMING OPERATIONS RECLAMATION OF CONTAMINED SOIL SOIL REFRACTORIES SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SLAG TRANSPORTING TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a water-granulated slag from which the elution of heavy metals can be economically and securely inhibited without using a flocculant etc., by a water granulation method of molten slag, wherein the risk of heavy metal elution is reduced, by decreasing the concentration of suspended matters in slag-cooling water. SOLUTION: In the water granulation method of the molten slag, the slag-cooling water is circulated through a slag-cooling water tank, a slag-cooling water reservoir and a cooler, and a magnetic separation apparatus is established upstream of the cooler to separate and remove the suspended matters in the slag-cooling water by using iron components contained in the suspended matters. The water-granulated slag from which the elution of a heavy metal is inhibited can be produced thereby. COPYRIGHT: (C)2009,JPO&INPIT