Steel slag recycling method

• Main Authors: FAN ZEYU, QIAN QIANG, LI XIANSHU
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2019
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses a steel slag recycling method, and relates to the technical field of steel making waste utilization. The invention provides the steel slag recycling method capable of comprehensively utilizing steel slag and avoiding waste. The steel slag recycling method comprises the following steps: A, grinding a steel slag raw material to obtain steel slag particles, wherein the particle size of 95% or more of the steel slag particles is smaller than 1 mm; B, screening the steel slag particles to remove difficult-to-grind particles with a particle size larger than 5 mm to obtain undersize fine particles; C, carrying out magnetic separation on the undersize fine particles to obtain magnetic separation powder capable of being magnetically attracted and quasi-steel slag micropowderwhich cannot be magnetically attracted; and D, washing the magnetic separation powder with water to obtain the water-washed magnetic separation powder with a high iron content, and grinding the quasi-steel slag micropowder t