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Method for resource utilization of copper slag in metallurgical industry
The invention discloses a method for resource utilization of copper slag in the metallurgical industry, which comprises the following steps of: mixing powder obtained by powdering LF (ladle furnace) high-alkalinity refining slag with fly ash generated by a molten iron pouring station, and processing the mixture into a 150-300-mesh powder mixture through a Raymond mill; wherein the content of C in the powder mixture is 25%-30%, the content of CaO in the powder mixture is 35%-40%, the powder mixture is blown into a slag tank filled with liquid copper slag, 400 kg-450 kg of the powder mixture is blown into each ton of the liquid copper slag, after blowing is finished, the copper slag in the slag tank is poured into a slag field for slow cooling, and then heavy metal in the copper slag is recycled through crushing and magnetic separation and serves as a metal raw material for smelting pipeline steel and stainless steel for resource utilization. The residual tailings can be used as non-agricultural medium element fertilizers for grassland greening, afforestation and the like.
本发明公开了一种资源化利用冶金行业中铜渣的方法，将LF高碱度精炼渣粉化后的粉末，与铁水倒罐站产生的除尘灰混合后，通过雷蒙磨加工到150～300目的粉末混合料。其中粉末混合料中的C在25%～30%，CaO在35～40%，将这种粉末料向装有液态铜渣的渣罐中喷吹，其中每吨液态铜渣中喷吹400kg～450kg的粉末混合料，喷吹结束后，将渣罐中的铜渣倒入渣场缓冷后，破碎磁选回收其中的重金属，作为管线钢和不锈钢冶炼的金属原料资源化利用，剩余的尾渣可作为草场绿化、植树造林等非农业用中量元素肥料使用。
Method for resource utilization of copper slag in metallurgical industry
The invention discloses a method for resource utilization of copper slag in the metallurgical industry, which comprises the following steps of: mixing powder obtained by powdering LF (ladle furnace) high-alkalinity refining slag with fly ash generated by a molten iron pouring station, and processing the mixture into a 150-300-mesh powder mixture through a Raymond mill; wherein the content of C in the powder mixture is 25%-30%, the content of CaO in the powder mixture is 35%-40%, the powder mixture is blown into a slag tank filled with liquid copper slag, 400 kg-450 kg of the powder mixture is blown into each ton of the liquid copper slag, after blowing is finished, the copper slag in the slag tank is poured into a slag field for slow cooling, and then heavy metal in the copper slag is recycled through crushing and magnetic separation and serves as a metal raw material for smelting pipeline steel and stainless steel for resource utilization. The residual tailings can be used as non-agricultural medium element fertilizers for grassland greening, afforestation and the like.
本发明公开了一种资源化利用冶金行业中铜渣的方法，将LF高碱度精炼渣粉化后的粉末，与铁水倒罐站产生的除尘灰混合后，通过雷蒙磨加工到150～300目的粉末混合料。其中粉末混合料中的C在25%～30%，CaO在35～40%，将这种粉末料向装有液态铜渣的渣罐中喷吹，其中每吨液态铜渣中喷吹400kg～450kg的粉末混合料，喷吹结束后，将渣罐中的铜渣倒入渣场缓冷后，破碎磁选回收其中的重金属，作为管线钢和不锈钢冶炼的金属原料资源化利用，剩余的尾渣可作为草场绿化、植树造林等非农业用中量元素肥料使用。
Method for resource utilization of copper slag in metallurgical industry
一种资源化利用冶金行业中铜渣的方法
LIU WENSHENG (author) / YU HAIMING (author) / LIU RENBO (author) / WANG QIANG (author)
2024-09-24
Patent
Electronic Resource
Chinese
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