A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-alumina pull brick and preparation method thereof
The invention provides a high-alumina pull brick and a preparation method thereof. The high-alumina pull brick is prepared from the following raw materials in percentage by weight: 33%-37% of alpha-Al2O3 particles, 18%-22% of andalusite particles, 13%-17% of andalusite powder, 5%-9% of kyanite powder, 8%-12% of high-alumina powder and 12%-15% of a binding agent. The preparation method comprises the following steps: (1) crushing alpha-Al2O3 and andalusite; (2) mixing andalusite powder, kyanite powder and high-aluminum powder, and grinding into co-ground powder with the fineness of less than orequal to 0.088 mm; (3) mixing; (4) adding a binding agent and a mixed material into the mixed material; (5) preparing a green brick; and (6) drying the green brick at 90-180 DEG C, sintering in a kiln, and sintering at 1480 DEG C to obtain the finished product. The high-alumina pull brick disclosed by the invention is low in creep rate, high in load softening point, high in high-temperature breaking strength, small in boundary dimension deformation and long in service life, the service life of a carbon anode roasting furnace can be prolonged, and the maintenance cost can be reduced.
本发明提供一种高铝拉砖及其制备方法。所述高铝拉砖由以下重量百分比的原料制成：ɑ‑Al2O3颗粒33～37％、红柱石颗粒18～22％、红柱石粉13～17％、蓝晶石粉5～9％、高铝粉8～12％、结合剂12～15％。制备方法包括以下步骤：(1)ɑ‑Al2O3及红柱石粉碎；(2)红柱石粉、蓝晶石粉、高铝粉混合，研磨成细度≤0.088mm的共磨粉；(3)混料；(4)混料中加结合剂，混炼料(5)制砖坯；(6)将砖坯90～180℃烘干、入窑烧结，1480℃烧结，即得成品。本发明的高铝拉砖，蠕变率低、荷重软化点高、高温抗折强度高、外形尺寸变形小且寿命长，能够提高炭素阳极焙烧炉的使用炉龄，降低维修成本。
High-alumina pull brick and preparation method thereof
The invention provides a high-alumina pull brick and a preparation method thereof. The high-alumina pull brick is prepared from the following raw materials in percentage by weight: 33%-37% of alpha-Al2O3 particles, 18%-22% of andalusite particles, 13%-17% of andalusite powder, 5%-9% of kyanite powder, 8%-12% of high-alumina powder and 12%-15% of a binding agent. The preparation method comprises the following steps: (1) crushing alpha-Al2O3 and andalusite; (2) mixing andalusite powder, kyanite powder and high-aluminum powder, and grinding into co-ground powder with the fineness of less than orequal to 0.088 mm; (3) mixing; (4) adding a binding agent and a mixed material into the mixed material; (5) preparing a green brick; and (6) drying the green brick at 90-180 DEG C, sintering in a kiln, and sintering at 1480 DEG C to obtain the finished product. The high-alumina pull brick disclosed by the invention is low in creep rate, high in load softening point, high in high-temperature breaking strength, small in boundary dimension deformation and long in service life, the service life of a carbon anode roasting furnace can be prolonged, and the maintenance cost can be reduced.
本发明提供一种高铝拉砖及其制备方法。所述高铝拉砖由以下重量百分比的原料制成：ɑ‑Al2O3颗粒33～37％、红柱石颗粒18～22％、红柱石粉13～17％、蓝晶石粉5～9％、高铝粉8～12％、结合剂12～15％。制备方法包括以下步骤：(1)ɑ‑Al2O3及红柱石粉碎；(2)红柱石粉、蓝晶石粉、高铝粉混合，研磨成细度≤0.088mm的共磨粉；(3)混料；(4)混料中加结合剂，混炼料(5)制砖坯；(6)将砖坯90～180℃烘干、入窑烧结，1480℃烧结，即得成品。本发明的高铝拉砖，蠕变率低、荷重软化点高、高温抗折强度高、外形尺寸变形小且寿命长，能够提高炭素阳极焙烧炉的使用炉龄，降低维修成本。
High-alumina pull brick and preparation method thereof
一种高铝拉砖及其制备方法
HOU SHUZHANG (author) / HOU ZHIYUAN (author) / WEI FANGFANG (author)
2020-10-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
High-alumina refractory brick and preparation method thereof
| European Patent Office | 2020
High-strength high-alumina brick and preparation method thereof
| European Patent Office | 2020
Low-creep high-alumina brick and preparation method thereof
| European Patent Office | 2021
Low-creep high-alumina brick and preparation method thereof
| European Patent Office | 2021
High-alumina shaped refractory brick and preparation method thereof
| European Patent Office | 2024