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A platform for research: civil engineering, architecture and urbanism
Long-service-life steel ladle and method for prolonging service life of converter steel ladle
The invention provides a long-service-life steel ladle and a method for prolonging the service life of a converter steel ladle, the steel ladle comprises a working layer located on the inner side and a permanent layer located on the outer side, the working layer comprises a slag line working layer and a ladle wall working layer located below the slag line working layer, and the ladle wall working layer comprises the following components in percentage by mass: 63.0-70.0% of 0.5-6 mm corundum particles; 12%-15% of 300-mesh corundum fine powder; 12.5%-14.5% of alumina micro powder of 3 to 6 [mu] m; 4.0%-5.0% of calcium aluminate cement; 1.5%-2.5% of an antioxidant raw material; the slag line working layer comprises the following components in percentage by mass: 59.0-66.0% of corundum particles with the particle size of 0.5-6 mm; 13%-16% of 300-mesh corundum fine powder; 15.5%-17.5% of alumina micro powder of 3-6 [mu] m; 4.0%-5.0% of calcium aluminate cement; and 1.5%-2.5% of an antioxidant raw material. By optimizing the components of the slag line working layer and the ladle wall working layer and according with the casting process, the service life of the steel ladle for the converter is prolonged, so that the consumption of refractory materials per ton of steel in steelmaking is reduced, the cost per ton of steel is reduced, and enterprise benefits are improved.
本发明提供了一种高寿命钢包及提高转炉钢包寿命的方法，钢包包括位于内侧的工作层和外侧的永久层，其中工作层包括渣线工作层及其下方的包壁工作层，所述包壁工作层包括如下质量百分含量的组分：0.5～6mm刚玉颗粒63.0％～70.0％；300目刚玉细粉12％～15％；3～6μm氧化铝微粉12.5％～14.5％；铝酸钙水泥4.0％～5.0％；抗氧化性原料1.5％～2.5％；渣线工作层包括如下质量百分含量的组分：0.5～6mm刚玉颗粒59.0％～66.0％；300目刚玉细粉13％～16％；3～6μm氧化铝微粉15.5％～17.5％；铝酸钙水泥4.0％～5.0％；抗氧化性原料1.5％～2.5％。本发明通过优化渣线工作层和包壁工作层的组分以及符合浇铸工艺，提高转炉用钢包的寿命，从而降低炼钢吨钢耐火材料消耗，降低吨钢成本，提高企业效益。
Long-service-life steel ladle and method for prolonging service life of converter steel ladle
The invention provides a long-service-life steel ladle and a method for prolonging the service life of a converter steel ladle, the steel ladle comprises a working layer located on the inner side and a permanent layer located on the outer side, the working layer comprises a slag line working layer and a ladle wall working layer located below the slag line working layer, and the ladle wall working layer comprises the following components in percentage by mass: 63.0-70.0% of 0.5-6 mm corundum particles; 12%-15% of 300-mesh corundum fine powder; 12.5%-14.5% of alumina micro powder of 3 to 6 [mu] m; 4.0%-5.0% of calcium aluminate cement; 1.5%-2.5% of an antioxidant raw material; the slag line working layer comprises the following components in percentage by mass: 59.0-66.0% of corundum particles with the particle size of 0.5-6 mm; 13%-16% of 300-mesh corundum fine powder; 15.5%-17.5% of alumina micro powder of 3-6 [mu] m; 4.0%-5.0% of calcium aluminate cement; and 1.5%-2.5% of an antioxidant raw material. By optimizing the components of the slag line working layer and the ladle wall working layer and according with the casting process, the service life of the steel ladle for the converter is prolonged, so that the consumption of refractory materials per ton of steel in steelmaking is reduced, the cost per ton of steel is reduced, and enterprise benefits are improved.
本发明提供了一种高寿命钢包及提高转炉钢包寿命的方法，钢包包括位于内侧的工作层和外侧的永久层，其中工作层包括渣线工作层及其下方的包壁工作层，所述包壁工作层包括如下质量百分含量的组分：0.5～6mm刚玉颗粒63.0％～70.0％；300目刚玉细粉12％～15％；3～6μm氧化铝微粉12.5％～14.5％；铝酸钙水泥4.0％～5.0％；抗氧化性原料1.5％～2.5％；渣线工作层包括如下质量百分含量的组分：0.5～6mm刚玉颗粒59.0％～66.0％；300目刚玉细粉13％～16％；3～6μm氧化铝微粉15.5％～17.5％；铝酸钙水泥4.0％～5.0％；抗氧化性原料1.5％～2.5％。本发明通过优化渣线工作层和包壁工作层的组分以及符合浇铸工艺，提高转炉用钢包的寿命，从而降低炼钢吨钢耐火材料消耗，降低吨钢成本，提高企业效益。
Long-service-life steel ladle and method for prolonging service life of converter steel ladle
一种高寿命钢包及提高转炉钢包寿命的方法
DIAO CHENGMIN (author) / XIE JIXIANG (author) / XIE BIFENG (author) / ZHANG BAOFU (author) / MENG TINGTING (author)
2022-11-11
Patent
Electronic Resource
Chinese
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