CN111484317A - 一种用于高炉铁沟的均化矾土浇注料及其制备方法 - Google Patents
一种用于高炉铁沟的均化矾土浇注料及其制备方法 Download PDFInfo
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- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 26
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- 230000003647 oxidation Effects 0.000 description 1
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Abstract
本发明涉及耐火材料领域,尤其涉及一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:致密均化铝矾土15~25份,电熔棕刚玉25~30份,电熔白刚玉20~25份、电熔镁砂5~10份、二氧化硅微粉1~3份、双峰活性氧化铝微粉1~2份、球状沥青0.5~1.5份、炭黑粉0.2~0.5份、抗氧化剂0.5~1份、有机纤维0.1~0.3份、和高效减水剂0.1~0.2份。本发明致密均化铝矾土、普通铝矾土和亚白刚玉对鱼雷车“三脱”工艺用铝碳化硅碳材料性能的影响,结果发现,致密均化铝矾土试样在常温性能指标以及高温抗折强度和耐侵蚀性能方面都优于普通矾土。
Description
技术领域
本发明涉及耐火材料领域,尤其涉及一种用于高炉铁沟的均化矾土浇注料及其制备方法。
背景技术
高炉出铁沟浇注料周期性地受到铁水和熔渣的高温冲刷和侵蚀,使用环境非常恶劣。因此浇注料应具有良好的高温耐磨性、抗铁水和熔渣的冲刷性、抗渣侵蚀和渗透性能,还要具有良好的抗热震性和抗氧化性。传统的铁沟浇注料是以电熔棕刚玉等为骨料,但是随着钢铁产能严重过剩,利润下降,耐火材料也成为钢铁行业降本增效的重要环节,降低铁沟浇注料的成本迫在眉睫,因此开发一种抗渣侵蚀和渗透性能,成本较低的浇注料就显得尤为必要。
发明内容
本发明的目的在于提供一种用于高炉铁沟的均化矾土浇注料及其制备方法,氧化物涂覆改性致密均化铝矾土具有气孔率低、高温体积稳定性好、抗铁水和熔渣侵蚀性能优异等特点。
采用的技术方案如下:
一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:
致密均化铝矾土15~25份,电熔棕刚玉25~30份,电熔白刚玉20~25份、电熔镁砂5~10份、二氧化硅微粉1~3份、双峰活性氧化铝微粉1~2份、球状沥青0.5~1.5份、炭黑粉0.2~0.5份、抗氧化剂0.5~1份、有机纤维0.1~0.3份、和高效减水剂0.1~0.2份。
优选的,所述的有机纤维为聚丙烯防爆纤维。
优选的,包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
优选的,所述步骤(1)中,用混合机将上述物质混合6-8分钟,得到混合物A。
优选的,所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合8-11分钟。
有益的效果在于:致密均化铝矾土、普通铝矾土和亚白刚玉对鱼雷车“三脱”工艺用铝碳化硅碳材料性能的影响,结果发现,致密均化铝矾土试样在常温性能指标以及高温抗折强度和耐“三脱”馇熔渣侵蚀性能方面都优于普通矾土。
具体实施方式
下面结合具体实施例对本发明做进一步的描述。
实施例1:
本发明提供一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:致密均化铝矾土15~25份,电熔棕刚玉25~30份,电熔白刚玉20~25份、电熔镁砂5~10份、二氧化硅微粉1~3份、双峰活性氧化铝微粉1~2份、球状沥青0.5~1.5份、炭黑粉0.2~0.5份、抗氧化剂0.5~1份、有机纤维0.1~0.3份、和高效减水剂0.1~0.2份。
一种用于高炉铁沟的均化矾土浇注料及其制备方法,包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
为了使混合物A混合的更加均匀且不至于混合太久浪费时间,上述步骤(1)中,用混合机将上述物质混合6-8分钟,得到混合物A。
为了使成品浇注料混合的更加均匀且不至于混合太久浪费时间,所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合8-11分钟。
实施例2
一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:致密均化铝矾土15份,电熔棕刚玉25份,电熔白刚玉20份、电熔镁砂5份、二氧化硅微粉1份、双峰活性氧化铝微粉1份、球状沥青0.5份、炭黑粉0.2份、抗氧化剂0.5份、有机纤维0.1份、和高效减水剂0.1份。
一种用于高炉铁沟的均化矾土浇注料及其制备方法,包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
为了使混合物A混合的更加均匀且不至于混合太久浪费时间,上述步骤(1)中,用混合机将上述物质混合6分钟,得到混合物A。
为了使成品浇注料混合的更加均匀且不至于混合太久浪费时间,所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合8分钟。
实施例3:
本发明提供一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:致密均化铝矾土25份,电熔棕刚玉30份,电熔白刚玉25份、电熔镁砂10份、二氧化硅微粉3份、双峰活性氧化铝微粉2份、球状沥青1.5份、炭黑粉0.5份、抗氧化剂1份、有机纤维0.3份、和高效减水剂0.2份。
一种用于高炉铁沟的均化矾土浇注料及其制备方法,包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
为了使混合物A混合的更加均匀且不至于混合太久浪费时间,上述步骤(1)中,用混合机将上述物质混合8分钟,得到混合物A。
为了使成品浇注料混合的更加均匀且不至于混合太久浪费时间,所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合11分钟。
实施例4:
本发明提供一种用于高炉铁沟的均化矾土浇注料及其制备方法,由以下重量份数的原料配制而成:致密均化铝矾土20份,电熔棕刚玉28份,电熔白刚玉22.5份、电熔镁砂7.5份、二氧化硅微粉2份、双峰活性氧化铝微粉1.5份、球状沥青1份、炭黑粉0.35份、抗氧化剂0.75份、有机纤维0.2份、和高效减水剂0.15份。
一种用于高炉铁沟的均化矾土浇注料及其制备方法,包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
为了使混合物A混合的更加均匀且不至于混合太久浪费时间,上述步骤(1)中,用混合机将上述物质混合7分钟,得到混合物A。
为了使成品浇注料混合的更加均匀且不至于混合太久浪费时间,所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合9分钟。
本发明提供的一种用于高炉铁沟的均化矾土浇注料及其制备方法,致密均化铝矾土、普通铝矾土和亚白刚玉对鱼雷车“三脱”工艺用铝碳化硅碳材料性能的影响,结果发现,致密均化铝矾土试样在常温性能指标以及高温抗折强度和耐侵蚀性能方面都优于普通矾土。因此,致密均化矾土有望取代棕刚玉广泛用于铁沟浇注料。
Claims (5)
1.一种用于高炉铁沟的均化矾土浇注料及其制备方法,其特征在于:由以下重量份数的原料配制而成:
致密均化铝矾土15~25份,电熔棕刚玉25~30份,电熔白刚玉20~25份、电熔镁砂5~10份、二氧化硅微粉1~3份、双峰活性氧化铝微粉1~2份、球状沥青0.5~1.5份、炭黑粉0.2~0.5份、抗氧化剂0.5~1份、有机纤维0.1~0.3份、和高效减水剂0.1~0.2份。
2.根据权利要求1所述的一种用于高炉铁沟的均化矾土浇注料及其制备方法,其特征在于:所述的有机纤维为聚丙烯防爆纤维。
3.根据权利要求1所述的一种用于高炉铁沟的均化矾土浇注料及其制备方法,其特征在于:包括以下步骤:
(1)按上述比例用电子秤称取双峰活性氧化铝微粉、电熔白刚玉、炭黑粉、二氧化硅微粉后,用混合机将上述物质混合,得到混合物A;
(2)按上述比例用电子秤称取电熔棕刚玉、致密均化铝矾土球状沥青后、电熔镁砂,用混合机将上述物质混合,得到混合物B;
(3)按上述比例用电子秤称取抗氧化剂、有机纤维、高效减水剂后,用混合机将上述物质混合,得到混合物B;
(4)将混合物A、混合物B和混合物C使用搅拌混合机混合。
4.根据权利要求1所述的一种用于高炉铁沟的均化矾土浇注料及其制备方法,其特征在于:所述步骤(1)中,用混合机将上述物质混合6-8分钟,得到混合物A。
5.根据权利要求1所述的一种用于高炉铁沟的均化矾土浇注料及其制备方法,其特征在于:所述步骤(4)中,将混合物A、混合物B和混合物C使用搅拌混合机混合8-11分钟。
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