Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Spinel slag dam for tundish
The invention relates to a spinel slag dam for a tundish. The spinel slag dam is prepared from the following raw materials in parts by weight: 40-75 parts of fused magnesia-alumina spinel, 30-50 parts of magnesite clinker, 5-15 parts of a waste cement kiln material, 2-5 parts of magnesite tailings, 3-5 parts of sodium tripolyphosphate, 0.2-2 parts of azodicarbonamide and 1-2 parts of aluminum dihydrogen phosphate. The grain size of the magnesium aluminate spinel is 3-5 mm, 1-3 mm and 0.1-1 mm. The particle size of the sintered magnesia is 3-5 mm, 1-3 mm and 0.1-1 mm. The grain size of the magnesite tailings is less than or equal to 1mm. The waste cement kiln material comprises a kiln coating material and used magnesia-alumina spinel bricks, and the particle size of the waste cement kiln material is 0.1-1 mm. The grain size of the magnesite tailings is less than or equal to 1mm. The waste cement kiln material contains the Portland cement clinker and the magnesium aluminate spinel, and Portland cement can be used as a hydraulic binding agent of a refractory material and can be preliminarily hardened before a slag dam is baked. The used refractory brick is a magnesium aluminate spinel brick, so that the use amount of the fused magnesium aluminate spinel can be reduced, the reutilization of the refractory material is realized, the resource is saved, and the cost is reduced.
本发明涉及一种中间包用尖晶石挡渣堰，原料按重量份包括：电熔镁铝尖晶石40‑75份，烧结镁砂30‑50份，废水泥窑料5‑15份，菱镁矿尾矿2‑5份，三聚磷酸钠3‑5份，偶氮二甲酰胺0.2‑2份，磷酸二氢铝1‑2份。镁铝尖晶石粒径包括3‑5mm，1‑3mm,0.1‑1mm。烧结镁砂粒径包括3‑5mm，1‑3mm,0.1‑1mm。菱镁矿尾矿粒径为≤1mm。废水泥窑料包括窑皮料和用后镁铝尖晶石砖，粒径0.1‑1mm。菱镁矿尾矿粒径为≤1mm。本发明废水泥窑料中含有硅酸盐水泥熟料和镁铝尖晶石，硅酸盐水泥可以作为耐火材料的水硬性结合剂，在挡渣堰未烘烤前即可初步硬化。用后耐火砖为镁铝尖晶石砖，能够减少电熔镁铝尖晶石的用量，实现耐火材料再利用，节约资源，降低成本。
Spinel slag dam for tundish
The invention relates to a spinel slag dam for a tundish. The spinel slag dam is prepared from the following raw materials in parts by weight: 40-75 parts of fused magnesia-alumina spinel, 30-50 parts of magnesite clinker, 5-15 parts of a waste cement kiln material, 2-5 parts of magnesite tailings, 3-5 parts of sodium tripolyphosphate, 0.2-2 parts of azodicarbonamide and 1-2 parts of aluminum dihydrogen phosphate. The grain size of the magnesium aluminate spinel is 3-5 mm, 1-3 mm and 0.1-1 mm. The particle size of the sintered magnesia is 3-5 mm, 1-3 mm and 0.1-1 mm. The grain size of the magnesite tailings is less than or equal to 1mm. The waste cement kiln material comprises a kiln coating material and used magnesia-alumina spinel bricks, and the particle size of the waste cement kiln material is 0.1-1 mm. The grain size of the magnesite tailings is less than or equal to 1mm. The waste cement kiln material contains the Portland cement clinker and the magnesium aluminate spinel, and Portland cement can be used as a hydraulic binding agent of a refractory material and can be preliminarily hardened before a slag dam is baked. The used refractory brick is a magnesium aluminate spinel brick, so that the use amount of the fused magnesium aluminate spinel can be reduced, the reutilization of the refractory material is realized, the resource is saved, and the cost is reduced.
本发明涉及一种中间包用尖晶石挡渣堰，原料按重量份包括：电熔镁铝尖晶石40‑75份，烧结镁砂30‑50份，废水泥窑料5‑15份，菱镁矿尾矿2‑5份，三聚磷酸钠3‑5份，偶氮二甲酰胺0.2‑2份，磷酸二氢铝1‑2份。镁铝尖晶石粒径包括3‑5mm，1‑3mm,0.1‑1mm。烧结镁砂粒径包括3‑5mm，1‑3mm,0.1‑1mm。菱镁矿尾矿粒径为≤1mm。废水泥窑料包括窑皮料和用后镁铝尖晶石砖，粒径0.1‑1mm。菱镁矿尾矿粒径为≤1mm。本发明废水泥窑料中含有硅酸盐水泥熟料和镁铝尖晶石，硅酸盐水泥可以作为耐火材料的水硬性结合剂，在挡渣堰未烘烤前即可初步硬化。用后耐火砖为镁铝尖晶石砖，能够减少电熔镁铝尖晶石的用量，实现耐火材料再利用，节约资源，降低成本。
Spinel slag dam for tundish
一种中间包用尖晶石挡渣堰
ZHOU KE (Autor:in) / CHEN DONGMING (Autor:in) / DONG ZHAOYU (Autor:in)
14.06.2024
Patent
Elektronische Ressource
Chinesisch
Slag dam for tundish and preparation method of slag dam
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024