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Aluminum-titanium-silicon carbide composite fireproof shaped product for iron-making blast furnace
The invention discloses an aluminum-titanium-silicon carbide composite fire-resistant shaped product for an iron-making blast furnace. The aluminum-titanium-silicon carbide composite fire-resistant shaped product comprises the following components in percentage by mass: 60%-76% of Al2O3; 3%-15% of TiO2; 8%-20% of SiC; 0.1%-1.0% of Fe2O3; 3%-8% of SiO2; and the balance of CaO and MgO, K2O and Na2O account for 0.3%-1.5%. The aluminum-titanium-silicon carbide composite fireproof shaping product for the iron-making blast furnace can be used for building blast furnace ceramic cups, tuyeres, iron notch linings and blast furnace linings above the tuyeres, and can also be used as cooling wall inlaid bricks. During use, when a titanium oxide component in the aluminum-titanium-silicon carbide composite fireproof shaped product is in contact with N2, CO and C in a blast furnace, carbonitride with high hardness, high refractoriness and good stability is generated on a contact interface, so that the capacity of the fireproof shaped product for resisting chemical erosion and mechanical scouring of products in the furnace is improved; and the built furnace lining has a self-protection function, the damage rate of the furnace lining is reduced, and the service cycle of cooling equipment, a furnace shell and the like is prolonged, so that the service life of a blast furnace is prolonged.
本发明公开了一种炼铁高炉用铝钛碳化硅复合耐火定型制品，其组成成分的质量百分比为：Al2O3：60％‑76％；TiO2：3％‑15％；SiC：8％‑20％；Fe2O3：0.1％‑1.0％；SiO2：3％‑8％；其余为CaO和MgO、K2O、Na2O：0.3％‑1.5％。本发明提供的一种炼铁高炉用铝钛碳化硅复合耐火定型制品，可用于砌筑高炉陶瓷杯、风口和铁口内衬、风口以上的高炉内衬，还可用作冷却壁镶砖。使用中，铝钛碳化硅复合耐火定型制品中的钛氧化物组分与高炉内的N2、CO、C接触时，在接触界面上生成高硬度、耐火度高、稳定性好的碳氮化物，从而提高了耐火定型制品自身抵御炉内产物化学侵蚀、机械冲刷的能力，所砌筑的炉衬具有了自保护功能，降低了炉衬的破损速率，延长了冷却设备、炉壳等的使用周期，因此将延长高炉寿命。
Aluminum-titanium-silicon carbide composite fireproof shaped product for iron-making blast furnace
The invention discloses an aluminum-titanium-silicon carbide composite fire-resistant shaped product for an iron-making blast furnace. The aluminum-titanium-silicon carbide composite fire-resistant shaped product comprises the following components in percentage by mass: 60%-76% of Al2O3; 3%-15% of TiO2; 8%-20% of SiC; 0.1%-1.0% of Fe2O3; 3%-8% of SiO2; and the balance of CaO and MgO, K2O and Na2O account for 0.3%-1.5%. The aluminum-titanium-silicon carbide composite fireproof shaping product for the iron-making blast furnace can be used for building blast furnace ceramic cups, tuyeres, iron notch linings and blast furnace linings above the tuyeres, and can also be used as cooling wall inlaid bricks. During use, when a titanium oxide component in the aluminum-titanium-silicon carbide composite fireproof shaped product is in contact with N2, CO and C in a blast furnace, carbonitride with high hardness, high refractoriness and good stability is generated on a contact interface, so that the capacity of the fireproof shaped product for resisting chemical erosion and mechanical scouring of products in the furnace is improved; and the built furnace lining has a self-protection function, the damage rate of the furnace lining is reduced, and the service cycle of cooling equipment, a furnace shell and the like is prolonged, so that the service life of a blast furnace is prolonged.
本发明公开了一种炼铁高炉用铝钛碳化硅复合耐火定型制品，其组成成分的质量百分比为：Al2O3：60％‑76％；TiO2：3％‑15％；SiC：8％‑20％；Fe2O3：0.1％‑1.0％；SiO2：3％‑8％；其余为CaO和MgO、K2O、Na2O：0.3％‑1.5％。本发明提供的一种炼铁高炉用铝钛碳化硅复合耐火定型制品，可用于砌筑高炉陶瓷杯、风口和铁口内衬、风口以上的高炉内衬，还可用作冷却壁镶砖。使用中，铝钛碳化硅复合耐火定型制品中的钛氧化物组分与高炉内的N2、CO、C接触时，在接触界面上生成高硬度、耐火度高、稳定性好的碳氮化物，从而提高了耐火定型制品自身抵御炉内产物化学侵蚀、机械冲刷的能力，所砌筑的炉衬具有了自保护功能，降低了炉衬的破损速率，延长了冷却设备、炉壳等的使用周期，因此将延长高炉寿命。
Aluminum-titanium-silicon carbide composite fireproof shaped product for iron-making blast furnace
一种炼铁高炉用铝钛碳化硅复合耐火定型制品
XU XIAOHAN (author) / HE RUSHENG (author) / WU MIN (author)
2021-05-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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