Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aluminum-titanium-silicon carbide composite refractory castable for iron-making blast furnace
The invention discloses an aluminum-titanium-silicon carbide composite refractory castable for an iron-making blast furnace. The castable comprises the following components in percentage by mass: 56%-78% of Al2O3, 4%-16% of TiO2, 5%-18% of SiC, 0.1%-1.5% of Fe2O3, 5%-34% of SiO2 and the balance of CaO, and MgO, K2O, Na2O 0.3%-2.0%. The aluminum-titanium-silicon carbide composite refractory castable for the iron-making blast furnace, provided by the invention, can be used for pouring of a hearth lining, an iron notch area, a tuyere area and a cooling wall working end, wet spraying of parts such as a bosh, a furnace bosh and the middle upper part of a furnace body, and the like. During use, when a TiO2 component in the aluminum-titanium-silicon carbide composite refractory castable 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 refractory castable for resisting chemical erosion and mechanical erosion 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 life of cooling equipment, a furnace shell and the like is prolonged, so that the service life of the 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浇注料，其组成成分的质量百分比为：Al2O3：56％‑78％、TiO2：4％‑16％、SiC：5％‑18％、Fe2O3：0.1％‑1.5％、SiO2：5％‑34％、其余为CaO和MgO、K2O、Na2O：0.3％‑2.0％。本发明提供的一种炼铁高炉用铝钛碳化硅复合耐火浇注料，可用于炉缸内衬、铁口区域、风口区域、冷却壁工作端浇注和炉腹、炉腰以及炉身中上部等部位的湿法喷涂等等。使用中，铝钛碳化硅复合耐火浇注料中的TiO2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，从而提高了耐火浇注料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 refractory castable for iron-making blast furnace
The invention discloses an aluminum-titanium-silicon carbide composite refractory castable for an iron-making blast furnace. The castable comprises the following components in percentage by mass: 56%-78% of Al2O3, 4%-16% of TiO2, 5%-18% of SiC, 0.1%-1.5% of Fe2O3, 5%-34% of SiO2 and the balance of CaO, and MgO, K2O, Na2O 0.3%-2.0%. The aluminum-titanium-silicon carbide composite refractory castable for the iron-making blast furnace, provided by the invention, can be used for pouring of a hearth lining, an iron notch area, a tuyere area and a cooling wall working end, wet spraying of parts such as a bosh, a furnace bosh and the middle upper part of a furnace body, and the like. During use, when a TiO2 component in the aluminum-titanium-silicon carbide composite refractory castable 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 refractory castable for resisting chemical erosion and mechanical erosion 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 life of cooling equipment, a furnace shell and the like is prolonged, so that the service life of the 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浇注料，其组成成分的质量百分比为：Al2O3：56％‑78％、TiO2：4％‑16％、SiC：5％‑18％、Fe2O3：0.1％‑1.5％、SiO2：5％‑34％、其余为CaO和MgO、K2O、Na2O：0.3％‑2.0％。本发明提供的一种炼铁高炉用铝钛碳化硅复合耐火浇注料，可用于炉缸内衬、铁口区域、风口区域、冷却壁工作端浇注和炉腹、炉腰以及炉身中上部等部位的湿法喷涂等等。使用中，铝钛碳化硅复合耐火浇注料中的TiO2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，从而提高了耐火浇注料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 refractory castable for iron-making blast furnace
一种炼铁高炉用铝钛碳化硅复合耐火浇注料
XU XIAOHAN (Autor:in) / HE RUSHENG (Autor:in) / WU MIN (Autor:in)
13.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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