Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Castable for blast furnace hot air outlet bustle pipe and preparation method of castable
The invention provides a castable for a blast furnace hot air outlet bustle pipe and a preparation method of the castable. The heat conductivity coefficient, creep deformation and refractoriness under load of a high-aluminum castable can be improved. A castable for a blast furnace hot air outlet bustle pipe is characterized in that the castable is prepared from a base material and a dispersing agent, and the base material is prepared from, by mass, 52-68% of a high-aluminum material, 15-28% of andalusite, 2-5% of aluminum oxide hollow balls, 3-6% of silica powder, 2-5% of aluminum oxide micro powder and 28% of calcium aluminate cement; the dispersing agent is a mixture of sodium tripolyphosphate and hexametaphosphoric acid, and the sodium tripolyphosphate and the hexametaphosphoric acid respectively account for 0.05-0.2% of the total mass of the base material. The prepared castable is high in strength, excellent in erosion resistance and good in wear resistance, the product strength and the erosion resistance use effect are obviously better than those of materials used in the past, the labor intensity of masonry can be relieved, and the masonry efficiency can be improved; the service life of the blast furnace hot air outlet bustle pipe can be prolonged due to excellent creep deformation and refractoriness under load.
本发明提供一种高炉热风出口围管用浇注料及其制备方法，能够改善高铝质浇注料的导热系数、蠕变及荷软性能。一种高炉热风出口围管用浇注料，其特征在于是由基料和分散剂制备而成的，其中所述基料是下述质量分数的物料：高铝料52‑68％、红柱石料15～28％、氧化铝空心球2～5％、硅微粉3～6％、氧化铝微粉2～5％和铝酸钙水泥28％，所述分散剂为三聚磷酸钠和六偏磷酸的混合物，三聚磷酸钠和六偏磷酸各占基料总质量的0.05～0.2％。本发明所制备是强度高，抗侵蚀性能优良，耐磨性能良好的浇注料，产品强度和抗侵蚀性能使用效果明显优于以往所用的材料，能够减轻砌筑的劳动强度，增加砌筑效率；其优良的蠕变及荷软性能能够提高高炉热风出口围管的使用寿命。
Castable for blast furnace hot air outlet bustle pipe and preparation method of castable
The invention provides a castable for a blast furnace hot air outlet bustle pipe and a preparation method of the castable. The heat conductivity coefficient, creep deformation and refractoriness under load of a high-aluminum castable can be improved. A castable for a blast furnace hot air outlet bustle pipe is characterized in that the castable is prepared from a base material and a dispersing agent, and the base material is prepared from, by mass, 52-68% of a high-aluminum material, 15-28% of andalusite, 2-5% of aluminum oxide hollow balls, 3-6% of silica powder, 2-5% of aluminum oxide micro powder and 28% of calcium aluminate cement; the dispersing agent is a mixture of sodium tripolyphosphate and hexametaphosphoric acid, and the sodium tripolyphosphate and the hexametaphosphoric acid respectively account for 0.05-0.2% of the total mass of the base material. The prepared castable is high in strength, excellent in erosion resistance and good in wear resistance, the product strength and the erosion resistance use effect are obviously better than those of materials used in the past, the labor intensity of masonry can be relieved, and the masonry efficiency can be improved; the service life of the blast furnace hot air outlet bustle pipe can be prolonged due to excellent creep deformation and refractoriness under load.
本发明提供一种高炉热风出口围管用浇注料及其制备方法，能够改善高铝质浇注料的导热系数、蠕变及荷软性能。一种高炉热风出口围管用浇注料，其特征在于是由基料和分散剂制备而成的，其中所述基料是下述质量分数的物料：高铝料52‑68％、红柱石料15～28％、氧化铝空心球2～5％、硅微粉3～6％、氧化铝微粉2～5％和铝酸钙水泥28％，所述分散剂为三聚磷酸钠和六偏磷酸的混合物，三聚磷酸钠和六偏磷酸各占基料总质量的0.05～0.2％。本发明所制备是强度高，抗侵蚀性能优良，耐磨性能良好的浇注料，产品强度和抗侵蚀性能使用效果明显优于以往所用的材料，能够减轻砌筑的劳动强度，增加砌筑效率；其优良的蠕变及荷软性能能够提高高炉热风出口围管的使用寿命。
Castable for blast furnace hot air outlet bustle pipe and preparation method of castable
高炉热风出口围管用浇注料及其制备方法
GUO KAIWEN (Autor:in) / WANG JINKE (Autor:in) / LI LIKE (Autor:in)
28.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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