Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite material for blast furnace lining and preparation method thereof
The invention discloses a composite material for a blast furnace lining and a preparation method of the composite material. The composite material comprises the following raw material components: corundum, fused mullite, alumina powder, zirconia micro powder, boron nitride, a binding agent and a composite additive. The preparation method comprises the following steps: S1, mixing and grinding corundum and electro-fused mullite to obtain mixed sandstone; s2, sequentially adding aluminum oxide powder, zirconium oxide micro powder, boron nitride, a composite additive and a binding agent into the mixed sandstone prepared in the step S1, and uniformly mixing; and S3, carrying out high-temperature firing molding on the mixture prepared in the step S2 at a high temperature of 1600 DEG C under the pressure of 120 kg per square meter. Boron nitride is introduced into the corundum mullite composite material to inhibit silicon dioxide in mullite from being converted into silicon monoxide (pores), and zirconium oxide is introduced to improve the corrosion resistance of alkali metal or slag, so that the utilization coefficient of a blast furnace is more than 4.0, and the effects of energy conservation, emission reduction, cost reduction, efficiency improvement, high efficiency and long service life of the blast furnace are achieved.
本发明公开了一种用于高炉炉衬的复合材料及其制备方法，包括以下原料组分：刚玉、电熔莫来石、氧化铝粉、氧化锆微粉、氮化硼、结合剂、复合添加剂。制备方法包括以下步骤：S1、将刚玉、电熔莫来石混碾制得混合砂石；S2、将氧化铝粉、氧化锆微粉、氮化硼、复合添加剂、结合剂依次加入S1步骤制得的混合砂石中混合均匀；S3、将S2制备的混合物经1600℃的高温、每平方米压力为120kg的高压烧制成型。通过在刚玉莫来石复合材料中引入加入氮化硼，抑制莫来石中二氧化硅转换为一氧化硅（气孔），并通过引入“氧化锆”提高抗碱金属或炉渣的侵蚀，进而达到高炉利用系数4.0以上，实现节能减排，降本增效以及高炉高效长寿的效果。
Composite material for blast furnace lining and preparation method thereof
The invention discloses a composite material for a blast furnace lining and a preparation method of the composite material. The composite material comprises the following raw material components: corundum, fused mullite, alumina powder, zirconia micro powder, boron nitride, a binding agent and a composite additive. The preparation method comprises the following steps: S1, mixing and grinding corundum and electro-fused mullite to obtain mixed sandstone; s2, sequentially adding aluminum oxide powder, zirconium oxide micro powder, boron nitride, a composite additive and a binding agent into the mixed sandstone prepared in the step S1, and uniformly mixing; and S3, carrying out high-temperature firing molding on the mixture prepared in the step S2 at a high temperature of 1600 DEG C under the pressure of 120 kg per square meter. Boron nitride is introduced into the corundum mullite composite material to inhibit silicon dioxide in mullite from being converted into silicon monoxide (pores), and zirconium oxide is introduced to improve the corrosion resistance of alkali metal or slag, so that the utilization coefficient of a blast furnace is more than 4.0, and the effects of energy conservation, emission reduction, cost reduction, efficiency improvement, high efficiency and long service life of the blast furnace are achieved.
本发明公开了一种用于高炉炉衬的复合材料及其制备方法，包括以下原料组分：刚玉、电熔莫来石、氧化铝粉、氧化锆微粉、氮化硼、结合剂、复合添加剂。制备方法包括以下步骤：S1、将刚玉、电熔莫来石混碾制得混合砂石；S2、将氧化铝粉、氧化锆微粉、氮化硼、复合添加剂、结合剂依次加入S1步骤制得的混合砂石中混合均匀；S3、将S2制备的混合物经1600℃的高温、每平方米压力为120kg的高压烧制成型。通过在刚玉莫来石复合材料中引入加入氮化硼，抑制莫来石中二氧化硅转换为一氧化硅（气孔），并通过引入“氧化锆”提高抗碱金属或炉渣的侵蚀，进而达到高炉利用系数4.0以上，实现节能减排，降本增效以及高炉高效长寿的效果。
Composite material for blast furnace lining and preparation method thereof
一种用于高炉炉衬的复合材料及其制备方法
MENG DI (Autor:in) / CHENG ZHIFEI (Autor:in) / LI XINGKE (Autor:in) / BAI YONG (Autor:in)
25.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Composite material furnace lining, preparation method thereof and converter
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2020