CN105481409A - 一种抗侵蚀耐火材料 - Google Patents
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Abstract
本发明提供了一种抗侵蚀耐火材料,主要适用于石油焦罐式煅烧炉,所述抗侵蚀耐火材料,以重量百分比计,其原料组成包括以下成份:板刚玉骨料20~25%,红柱石35~40%,碳化硅10~15%,广西白泥3~5%,抗氧化剂2~3%,白刚玉粉10~15%,氧化铝微粉5~10%;所述原料在高温1500~1600℃制成所述抗侵蚀耐火材料。本发明的特点是抗侵蚀性好,耐高温,不易变形,导热性能好,做石油焦罐式煅烧炉的主体材料效果显著。
Description
技术领域
本发明提供了一种抗侵蚀耐火材料,主要适用于石油焦罐式煅烧炉。
背景技术
目前石油焦罐式煅烧炉主体材料选择的是硅砖,硅砖具有荷重高、价格低等特点,同时煅烧炉内主要是硫侵蚀,硅砖作为酸性耐材,对其有一定的抗侵蚀作用。近年来,随着高硫石油焦的增加,罐式煅烧炉的使用寿命急剧缩短,有的甚至投产不到两年就发生损害。在罐式煅烧炉硅砖侵蚀的原因是:
(1)硅砖在高温还原性气氛下的损毁与温度密切相关。砖的质量损失率以及体积收缩率都随着处理温度的增高而增大,与此同时,试样内部结构疏松,基质中的气孔也逐渐增多。
(2)用后硅砖分析以及石油焦侵蚀实验表明,煅烧炉硅砖损毁一方面是由于硅砖在高温下持续形成SiO气体,使材料内部疏松,并最终发生结构破坏而损毁;另一方面,在过高使用温度下液相的生成并从材料内部流出并在材料表面富集,最终使硅砖内部组分流失也是其损毁原因之一。
发明内容
本发明的发明目的在于,提供了一种抗侵蚀耐火材料,主要适用于石油焦罐式煅烧炉,该技术方案具有抗侵蚀能力强、耐高温性能好等显著优点。
本发明所采用的技术方案如下:
一种抗侵蚀耐火材料,所述抗侵蚀耐火材料,以重量百分比计,其原料组成包括以下成份:板刚玉骨料20~25%,红柱石35~40%,碳化硅10~15%,广西白泥3~5%,抗氧化剂2~3%,白刚玉粉10~15%,氧化铝微粉5~10%;所述原料在高温1500~1600℃制成所述抗侵蚀耐火材料。
优选地,所述抗侵蚀耐火材料,以重量百分比计,其原料组成包括以下成份:板刚玉骨料23~25%,红柱石38~40%,碳化硅10~15%,广西白泥3~5%,抗氧化剂2~3%,白刚玉粉10~15%,氧化铝微粉5~10%。
优选地,所述板刚玉骨料的重量含量为23~25%。
优选地,所述红柱石的重量含量为38~40%。
本发明的特点是抗侵蚀性高,耐热性好,不易变形,温度保持稳定,导热性好,抗硫的侵蚀,做石油焦罐式煅烧炉的主体材料十分合适。
具体实施方式
以下对本发明的原理和特征进行描述,所举实例只用于解释本发明,并非用于限定本发明的范围。
实施例1
将以下重量份的组份均匀混合:板刚玉骨料20份,红柱石35份,碳化硅15份,广西白泥3份,抗氧化剂2份,白刚玉粉15份,氧化铝微粉10份,在高温1500℃下制成抗侵蚀耐火材料。
将本技术方案抗侵蚀材料与硅砖一起砌筑匣钵,模拟罐式煅烧炉的工况条件,将匣钵内填满石油焦,密封后进行至少循环两次抗侵蚀实验,每次在1500℃温度下保温12个小时。通过实验室抗硫侵蚀及检测数据,本发明技术方案与硅砖的对比如下:
以上实验中,硅砖的被侵蚀程度明显,而本技术方案耐高温材料被侵蚀程度不明显,高温性能比硅砖要好,抗侵蚀能力也比硅砖好,从罐式煅烧炉高温高硫的工况条件分析,本技术方案的抗侵蚀材料能够取代硅砖,并且要优于硅砖。
实施例2
将以下重量份的组份均匀混合:板刚玉骨料23份,红柱石38份,碳化硅12份,广西白泥5份,抗氧化剂3份,白刚玉粉12份,氧化铝微粉7份,在高温1500℃制成抗侵蚀耐火材料。
将本技术方案抗侵蚀材料与硅砖一起砌筑匣钵,模拟罐式煅烧炉的工况条件,将匣钵内填满石油焦,密封后进行至少循环两次抗侵蚀实验,每次在1500℃温度下保温12个小时。通过实验室抗硫侵蚀及检测数据,本发明技术方案与硅砖的对比如下:
以上实验中,硅砖的被侵蚀程度明显,而本技术方案耐高温材料被侵蚀程度不明显,高温性能比硅砖要好,抗侵蚀能力也比硅砖好,从罐式煅烧炉高温高硫的工况条件分析,本技术方案的抗侵蚀材料能够取代硅砖,并且要优于硅砖。同时,本技术方案中适当提高了板刚玉骨料与红柱石的重量含量,所制成的耐火材料导热性能更好、抗侵蚀能力更高。
实施例3
将以下重量份的组份均匀混合:板刚玉骨料25份,红柱石40份,碳化硅10份,广西白泥3份,抗氧化剂2份,白刚玉粉10份,氧化铝微粉10份,在高温1600℃制成抗侵蚀耐火材料。
将本技术方案抗侵蚀材料与硅砖一起砌筑匣钵,模拟罐式煅烧炉的工况条件,将匣钵内填满石油焦,密封后进行至少循环两次抗侵蚀实验,每次在1500℃温度下保温12个小时。通过实验室抗硫侵蚀及检测数据,本发明技术方案与硅砖的对比如下:
以上实验中,硅砖的被侵蚀程度明显,而本技术方案耐高温材料被侵蚀程度不明显,高温性能比硅砖要好,抗侵蚀能力也比硅砖好,从罐式煅烧炉高温高硫的工况条件分析,本技术方案的抗侵蚀材料能够取代硅砖,并且要优于硅砖。同时,本技术方案中适当提高了板刚玉骨料与红柱石的重量含量,所制成的耐火材料导热性能更好、抗侵蚀能力更高。
以上所述仅为本发明的较佳实施方式,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (4)
1.一种抗侵蚀耐火材料,其特征在于,所述抗侵蚀耐火材料,以重量百分比计,其原料组成包括以下成份:板刚玉骨料20~25%,红柱石35~40%,碳化硅10~15%,广西白泥3~5%,抗氧化剂2~3%,白刚玉粉10~15%,氧化铝微粉5~10%;所述原料在高温1500~1600℃制成所述抗侵蚀耐火材料。
2.根据权利要求1所述的抗侵蚀耐火材料,其特征在于,所述抗侵蚀耐火材料,以重量百分比计,其原料组成包括以下成份:板刚玉骨料23~25%,红柱石38~40%,碳化硅10~15%,广西白泥3~5%,抗氧化剂2~3%,白刚玉粉10~15%,氧化铝微粉5~10%。
3.根据权利要求1所述的抗侵蚀耐火材料,其特征在于,所述板刚玉骨料的重量含量为23~25%。
4.根据权利要求1所述的抗侵蚀耐火材料,其特征在于,所述红柱石的重量含量为38~40%。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108083827A (zh) * | 2017-12-27 | 2018-05-29 | 洛阳神佳窑业有限公司 | 一种耐火材料 |
CN108409343A (zh) * | 2018-05-15 | 2018-08-17 | 安徽卓特信息技术有限公司 | 一种具有抗侵蚀作用的煅烧炉用耐火材料及其制备方法 |
CN109704792A (zh) * | 2019-01-08 | 2019-05-03 | 山东钢铁股份有限公司 | 用于制造焦罐内衬的浇注料及用于制造焦罐内衬的方法 |
CN110272287A (zh) * | 2018-03-16 | 2019-09-24 | 焦作诺尔曼炉业有限公司 | 一种罐式煅烧炉炉衬抗侵蚀用耐火材料制备方法 |
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CN104478454A (zh) * | 2014-12-19 | 2015-04-01 | 淄博拓普耐火材料有限公司 | 用于铁水包的耐火材料及其制备方法 |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108083827A (zh) * | 2017-12-27 | 2018-05-29 | 洛阳神佳窑业有限公司 | 一种耐火材料 |
CN110272287A (zh) * | 2018-03-16 | 2019-09-24 | 焦作诺尔曼炉业有限公司 | 一种罐式煅烧炉炉衬抗侵蚀用耐火材料制备方法 |
CN108409343A (zh) * | 2018-05-15 | 2018-08-17 | 安徽卓特信息技术有限公司 | 一种具有抗侵蚀作用的煅烧炉用耐火材料及其制备方法 |
CN108409343B (zh) * | 2018-05-15 | 2020-08-14 | 唐山市开平区鑫惠保温耐火材料厂 | 一种具有抗侵蚀作用的煅烧炉用耐火材料及其制备方法 |
CN109704792A (zh) * | 2019-01-08 | 2019-05-03 | 山东钢铁股份有限公司 | 用于制造焦罐内衬的浇注料及用于制造焦罐内衬的方法 |
CN109704792B (zh) * | 2019-01-08 | 2021-08-27 | 山东钢铁股份有限公司 | 用于制造焦罐内衬的浇注料及用于制造焦罐内衬的方法 |
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