CN112094112A - 一种高性能赛隆刚玉浇注料及其制备方法 - Google Patents

一种高性能赛隆刚玉浇注料及其制备方法 Download PDF

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CN112094112A
CN112094112A CN202010861342.8A CN202010861342A CN112094112A CN 112094112 A CN112094112 A CN 112094112A CN 202010861342 A CN202010861342 A CN 202010861342A CN 112094112 A CN112094112 A CN 112094112A
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corundum
alkali
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吴锡培
周志强
申青龙
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GUIYANG MINGTONG FURNACE CHARGE CO Ltd
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Abstract

本发明涉及耐火材料，具体是一种高性能赛隆刚玉浇注料及其制备方法。包括以下重量份的原料：棕刚玉60‑90份、刚玉40‑70份、氧化铝20‑40份、碳化硅40‑60份、抗碱剂5‑10份、结合剂4‑12份、葡萄糖酸钠2‑6份。本发明通过使用铝酸钙水泥或磷酸铝为结合剂，加入氧化铝和刚玉为辅料，不仅增加了其材料的强度，且降低了水的加入量，就实际降低了材料在烘干过程中形成蒸气压的可能性，从而提升本发明的抗爆裂性能；而加入了葡萄糖酸钠与氧化硅，其与氧化硅、棕刚玉等其他物料进行混合，相互之间产生反应，从而提高本发明的抗爆裂性能。

Description

一种高性能赛隆刚玉浇注料及其制备方法
技术领域
本发明涉及耐火材料，具体是一种高性能赛隆刚玉浇注料及其制备方法。
背景技术
水泥行业中，为了防止物料堵高，一般烟室及其缩口、分解炉锥段、C4、C5下料管等结皮严重部位，通常使用抗结皮碳化硅浇注料。
目前国内的抗结皮碳化硅浇注料在烘炉过程中有多次产生爆裂现象，一旦爆裂，几乎只能停窑，以免在下料管、烟室或缩口处容易造成物料堵塞。因此，这些部位使用的抗结皮碳化硅浇注料要抗结皮性好，不产生结皮：抗爆裂性好，不产生爆裂现象。
发明内容
本发明要解决的技术问题是提供一种抗爆裂性好及不产生结皮的高性能赛隆刚玉浇注料。
为了解决上述技术问题，本发明的技术方案为：
一种高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉60-90份、刚玉40-70份、氧化铝20-40份、碳化硅40-60份、抗碱剂5-10份、结合剂4-12份、葡萄糖酸钠2-6份。
包括以下重量份的原料：棕刚玉70-80份、刚玉50-60份、氧化铝25-35份、碳化硅45-55份、抗碱剂6-9份、结合剂5-11份、葡萄糖酸钠3-5份。
包括以下重量份的原料：棕刚玉75份、刚玉55份、氧化铝30份、碳化硅50份、抗碱剂8份、结合剂7份、葡萄糖酸钠4份。
所述抗碱剂为氧化硅。
所述结合剂为铝酸钙水泥或磷酸铝。
一种高性能赛隆刚玉浇注料的制备方法，包括以下步骤：
1）选取上述量份的棕刚玉，放入到粉碎机内进行粉碎，过筛成粒径为0.8mm-1.2mm的颗粒，取刚玉，放入到微粉机内打磨成粒径为0.08mm-0.12mm微粉；
2）按上述量份称取氧化铝、碳化硅与步骤1）制得的棕刚玉颗粒和刚玉微粉混合均匀，加入抗碱剂，送入到搅拌机内进行搅拌，取出，得混合骨料；
3）将混合骨料放入到煅烧窑内，控制温度为1000-1750℃进行高温煅烧3-8小时，取出进行保温4小时，冷却36小时，即得煅烧骨料；
4）在煅烧骨料过粉碎机，再放入到容器内，加入结合剂通过搅拌机进行搅拌均匀，在搅拌时，一边搅拌，一边加入葡萄糖酸钠，直至完全加入后，停止搅拌，即得成品浇注料。
与现有技术相比，本发明的有益效果为：
本发明通过使用铝酸钙水泥或磷酸铝为结合剂，加入氧化铝和刚玉为辅料，不仅增加了其材料的强度，且降低了水的加入量，就实际降低了材料在烘干过程中形成蒸气压的可能性，从而提升本发明的抗爆裂性能；而加入了葡萄糖酸钠与氧化硅，其与氧化硅、棕刚玉等其他物料进行混合，相互之间产生反应，从而提高本发明的抗结皮性能。
具体实施方式
下面对本发明的具体实施方式作进一步说明。在此需要说明的是，对于这些实施方式的说明用于帮助理解本发明，但并不构成对本发明的限定。此外，下面所描述的本发明各个实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互组合。
实施例1
本实施例的高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉60份、刚玉70份、氧化铝40份、碳化硅60份、抗碱剂10份、结合剂12份、葡萄糖酸钠6份。
抗碱剂为氧化硅。
结合剂为铝酸钙水泥或磷酸铝。
实施例2
本实施例的高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉90份、刚玉40份、氧化铝20份、碳化硅40份、抗碱剂5份、结合剂4份、葡萄糖酸钠2份。
抗碱剂为氧化硅。
结合剂为铝酸钙水泥或磷酸铝。
实施例3
本实施例的高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉70份、刚玉60份、氧化铝35份、碳化硅55份、抗碱剂9份、结合剂11份、葡萄糖酸钠5份。
抗碱剂为氧化硅。
结合剂为铝酸钙水泥或磷酸铝。
实施例4
本实施例的高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉80份、刚玉50份、氧化铝25份、碳化硅45份、抗碱剂6份、结合剂5份、葡萄糖酸钠3份。
抗碱剂为氧化硅。
结合剂为铝酸钙水泥或磷酸铝。
实施例5
本实施例的高性能赛隆刚玉浇注料，包括以下重量份的原料：棕刚玉75份、刚玉55份、氧化铝30份、碳化硅50份、抗碱剂8份、结合剂7份、葡萄糖酸钠4份。
抗碱剂为氧化硅。
结合剂为铝酸钙水泥或磷酸铝。
上述实施例中，通过使用铝酸钙水泥或磷酸铝为结合剂，加入氧化铝和刚玉为辅料，不仅增加了其材料的强度，且降低了水的加入量，就实际降低了材料在烘干过程中形成蒸气压的可能性，从而提升本发明的抗爆裂性能；而加入了葡萄糖酸钠与氧化硅，其与氧化硅、棕刚玉等其他物料进行混合，相互之间产生反应，从而提高本发明的抗爆裂性能。
本发明的制备方法如下：
包括以下步骤：
1）选取上述量份的棕刚玉，放入到粉碎机内进行粉碎，过筛成粒径为0.8mm-1.2mm的颗粒，取刚玉，放入到微粉机内打磨成粒径为0.08mm-0.12mm微粉；
2）按上述量份称取氧化铝、碳化硅与步骤1）制得的棕刚玉颗粒和刚玉微粉混合均匀，加入抗碱剂，送入到搅拌机内进行搅拌，取出，得混合骨料；
3）将混合骨料放入到煅烧窑内，控制温度为1000-1750℃进行高温煅烧3-8小时，取出进行保温4小时，冷却36小时，即得煅烧骨料；
4）在煅烧骨料过粉碎机，再放入到容器内，加入结合剂通过搅拌机进行搅拌均匀，在搅拌时，一边搅拌，一边加入葡萄糖酸钠，直至完全加入后，停止搅拌，即得成品浇注料。
采用本发明的配比按照本发明的制备方法制备出的涂料的检测数据如下：
Sic≥25%；
体积密度≥2.5g/cm2；
耐火度≥1790℃；
抗热震稳定性能≥35次；
耐压强度：≥100MPa（110℃×24h），≥100MPa（1100℃×3h）；抗折强度：≥12MPa（110℃×24h），≥12MPa（1100℃×3h）：
线变化率/%：-0.050∽+0.0（110℃×24h）
-0.30∽+0.3（1100℃×3h）
耐碱性；一级
抗结皮性：一级
由上述可知，本发明的浇注料的抗爆裂性能和抗结皮性能得到明显的提高。
以上对本发明的实施方式作了详细说明，但本发明不限于所描述的实施方式。对于本领域的技术人员而言，在不脱离本发明原理和精神的情况下，对这些实施方式进行多种变化、修改、替换和变型，仍落入本发明的保护范围内。

Claims (6)

1.一种高性能赛隆刚玉浇注料，其特征在于：包括以下重量份的原料：棕刚玉60-90份、刚玉40-70份、氧化铝20-40份、碳化硅40-60份、抗碱剂5-10份、结合剂4-12份、葡萄糖酸钠2-6份。
2.根据权利要求1所述的高性能赛隆刚玉浇注料，其特征在于：包括以下重量份的原料：棕刚玉70-80份、刚玉50-60份、氧化铝25-35份、碳化硅45-55份、抗碱剂6-9份、结合剂5-11份、葡萄糖酸钠3-5份。
3.根据权利要求2所述的高性能赛隆刚玉浇注料，其特征在于：包括以下重量份的原料：棕刚玉75份、刚玉55份、氧化铝30份、碳化硅50份、抗碱剂8份、结合剂7份、葡萄糖酸钠4份。
4.根据权利要求3所述的高性能赛隆刚玉浇注料，其特征在于：所述抗碱剂为氧化硅。
5.根据权利要求3所述的高性能赛隆刚玉浇注料，其特征在于：所述结合剂为铝酸钙水泥或磷酸铝。
6.根据权利要求1-5任一项所述的高性能赛隆刚玉浇注料的制备方法，其特征在于，包括以下步骤：
1）选取上述量份的棕刚玉，放入到粉碎机内进行粉碎，过筛成粒径为0.8mm-1.2mm的颗粒，取刚玉，放入到微粉机内打磨成粒径为0.08mm-0.12mm微粉；
2）按上述量份称取氧化铝、碳化硅与步骤1）制得的棕刚玉颗粒和刚玉微粉混合均匀，加入抗碱剂，送入到搅拌机内进行搅拌，取出，得混合骨料；
3）将混合骨料放入到煅烧窑内，控制温度为1000-1750℃进行高温煅烧3-8小时，取出进行保温4小时，冷却36小时，即得煅烧骨料；
4）在煅烧骨料过粉碎机，再放入到容器内，加入结合剂通过搅拌机进行搅拌均匀，在搅拌时，一边搅拌，一边加入葡萄糖酸钠，直至完全加入后，停止搅拌，即得成品浇注料。
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CN106396707A (zh) * 2016-08-30 2017-02-15 安徽瑞泰新材料科技有限公司 一种超高温抗结皮浇注料
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