CN114573329A - 一种铜溜槽用铝碳质浇注料 - Google Patents

一种铜溜槽用铝碳质浇注料 Download PDF

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CN114573329A
CN114573329A CN202011382392.4A CN202011382392A CN114573329A CN 114573329 A CN114573329 A CN 114573329A CN 202011382392 A CN202011382392 A CN 202011382392A CN 114573329 A CN114573329 A CN 114573329A
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parts
granularity
aluminum
alumina
silicon carbide
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崔娟
符耀钰
黄波
郑杰
陈勇
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Prco Kisc Yunnan Refractories Co ltd
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Prco Kisc Yunnan Refractories Co ltd
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Abstract

本发明公开了一种铜溜槽用铝碳质浇注料，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32～36份，粒度为0～1mm的85特级高铝15～20份，粒度为0.089～1mm的90碳化硅5～12份，粒度为0～0.088mm的90碳化硅15～24份，92硅微粉2～6份，Secar‑68水泥4～8份，320目的结合粘土8～12份，200目的金属硅粉1～3份，复合防爆材料0.1～0.2份，复合外加剂0.3～0.5份；本发明的有益效果在于：用85特级高铝和碳化硅，具有良好的抗铜侵蚀性能，结构强度高，热震稳定性良好；使用该结合粘土大大提高了粘附性，延长工作衬的使用寿命；添加复合防爆材料，具有较好的抗爆裂性能，能够快速修补并进行烘烤，能有效缩短检修周期，提升使用安全性；施工方便快捷。

Description

一种铜溜槽用铝碳质浇注料
技术领域
本发明涉及耐火材料领域，尤其涉及一种铜溜槽用铝碳质浇注料。
背景技术
在炼铜行业中，因铜水高温下粘度低、金属渗透性强，受铜水和炉渣的高温冲刷、渗透和化学侵蚀以及温度急剧变化和长时间高温作业等综合因素，使得铜炼水冷铜溜槽的工作衬耐火材料容易损坏，使用使用寿命较低。因此，要求这些耐火材料必须具有较高的强度，良好的高温体积稳定性、抗热震性、抗渗透性和抗侵蚀性。目前，炼铜行业大多耐火材料产品基本都是照搬炼铁行业，专门为炼铜行业开发的新产品较少。
铜炼水冷铜溜槽等普遍使用铝碳质预制件作为衬体，若直接盛装铜水，铜液冷却时容易导致预制件一次就被破坏，预制件成本较高，预制件使用寿命的降低势必造成单吨耐材成本的上升，也造成了耐材资源的浪费；而在预制件表面使用同等材质的铝碳质浇注料进行二次防护，能够减少使用过程铜水和炉渣对预制件的侵蚀及磨损，提高铜溜槽等设备整体使用寿命，降低炼铜企业的生产成本。
发明内容
本发明的目的在于针对现有技术的不足而提供的一种铜溜槽用铝碳质浇注料。
为达到上述目的，本发明通过以下技术方案来实现。
一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32～36份，粒度为0～1mm的85特级高铝15～20份，粒度为0.089～1mm的90碳化硅5～12份，粒度为0～0.088mm的90碳化硅15～24份，92硅微粉2～6份，Secar-68水泥4～8份，320目的结合粘土8～12份，200目的金属硅粉1～3份，复合防爆材料0.1～0.2份，复合外加剂0.3～0.5份。
进一步的，所述85特级高铝中Al2O3的含量≥85％、Fe2O3的含量≤2.0％、TiO2的含量≤4.0％，所述85特级高铝的体积密度在2.9～3.1g/cm3；所述90黑碳化硅中SiC的含量≥90％；所述92硅微粉中SiO2的含量≥93％；所述Secar-68水泥中Al2O3的含量为65～68％、CaO的含量为30～33％；所述金属硅粉中Si的含量≥99％；所述复合防爆材料由金属铝粉和防爆纤维按照质量比1﹕1混合而得；所述复合外加剂由聚丙烯酸铵和单水氢氧化锂按照质量比10﹕1混合而得。
进一步的，所述结合粘土通过以下方式制成：将Al2O3含量为22～30％的200目软质粘土，与吸蓝量≥30的200目膨润土，按照5：1共磨到320目制成。
进一步的，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32份，粒度为0～1mm的85特级高铝18份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅20份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土9份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
进一步的，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝36份，粒度为0～1mm的85特级高铝16份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土12份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
进一步的，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝34份，粒度为0～1mm的85特级高铝20份，粒度为0.089～1mm的90碳化硅5份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土11份，200目的金属硅粉2份，复合防爆材料0.2份，复合外加剂0.5份。
本发明的有益效果在于：用85特级高铝和碳化硅为主要原料，具有良好的抗铜侵蚀性能，不与铜液粘接，结构强度高，不易掉渣，不会污染铜液，热震稳定性良好；使用该结合粘土大大提高了粘附性，降低加水量，能够很好的粘于工作衬上，起到良好的保护作用，延长工作衬的使用寿命，缓解过大的线变化，防止烘烤后开裂，同时，便于铜液冷却后衬体粘渣的清理；添加复合防爆材料，具有较好的抗爆裂性能，能够快速修补并进行烘烤，能有效缩短检修周期，提升使用安全性；施工方便快捷，加水搅拌后即可进行涂抹，约3cm厚工作层即可起到良好的保护作用；不仅可以在炼铜水冷铜溜槽作为涂料使用，还可以用于炼铜中间包、浇注包的修补。
具体实施方式
下面结合实施例对本发明做进一步说明，但不局限于说明书上的内容。
本发明的目的在于针对现有技术的不足而提供的一种利用废高铝砖生产的高铝砖及其生产工艺。
为达到上述目的，本发明通过以下技术方案来实现。
一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32～36份，粒度为0～1mm的85特级高铝15～20份，粒度为0.089～1mm的90碳化硅5～12份，粒度为0～0.088mm的90碳化硅15～24份，92硅微粉2～6份，Secar-68水泥4～8份，320目的结合粘土8～12份，200目的金属硅粉1～3份，复合防爆材料0.1～0.2份，复合外加剂0.3～0.5份。
所述85特级高铝中Al2O3的含量≥85％、Fe2O3的含量≤2.0％、TiO2的含量≤4.0％，所述85特级高铝的体积密度在2.9～3.1g/cm3；所述90黑碳化硅中SiC的含量≥90％；所述92硅微粉中SiO2的含量≥93％；所述Secar-68水泥中Al2O3的含量为65～68％、CaO的含量为30～33％；所述金属硅粉中Si的含量≥99％；所述复合防爆材料由金属铝粉和防爆纤维按照质量比1﹕1混合而得；所述复合外加剂由聚丙烯酸铵和单水氢氧化锂按照质量比10﹕1混合而得。
所述结合粘土通过以下方式制成：将Al2O3含量为22～30％的200目软质粘土，与吸蓝量≥30的200目膨润土，按照5：1共磨到320目制成。
经上述组合配比制成的铝碳质浇注料，其性能参数如下：
(1)体积密度(110℃×24h)≥2.40g/cm3；
(2)加水量为8.5～10％；
(3)室温下的流动值≥180mm；
(4)烧后线变化率(1400℃×3h)±0.3％；
(5)热震稳定性(1100℃)水冷法≥30次；
(6)抗折强度(110℃×24h)≥7MPa；
(7)抗折强度(1100℃×3h)≥8MPa；
(8)抗折强度(1500℃×3h)≥7MPa；
(9)耐压强度(110℃×24h)≥60MPa；
(10)耐压强度(1100℃×3h)≥50MPa；
(11)耐压强度(1500℃×3h)≥40MPa。
具体实施例1，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32份，粒度为0～1mm的85特级高铝18份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅20份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土9份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
具体实施例2，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝36份，粒度为0～1mm的85特级高铝16份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土12份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
具体实施例3，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝34份，粒度为0～1mm的85特级高铝20份，粒度为0.089～1mm的90碳化硅5份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土11份，200目的金属硅粉2份，复合防爆材料0.2份，复合外加剂0.5份。
本发明的有益效果在于：用85特级高铝和碳化硅为主要原料，具有良好的抗铜侵蚀性能，不与铜液粘接，结构强度高，不易掉渣，不会污染铜液，热震稳定性良好；使用该结合粘土大大提高了粘附性，降低加水量，能够很好的粘于工作衬上，起到良好的保护作用，延长工作衬的使用寿命，缓解过大的线变化，防止烘烤后开裂，同时，便于铜液冷却后衬体粘渣的清理；添加复合防爆材料，具有较好的抗爆裂性能，能够快速修补并进行烘烤，能有效缩短检修周期，提升使用安全性；施工方便快捷，加水搅拌后即可进行涂抹，约3cm厚工作层即可起到良好的保护作用；不仅可以在炼铜水冷铜溜槽作为涂料使用，还可以用于炼铜中间包、浇注包的修补。
显然，本发明的上述实施方式仅仅是为清楚地说明本发明所作的举例，而并非是对本发明的实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无法对所有的实施方式予以穷举。凡是属于本发明的技术方案所引伸出的显而易见的变化或变动仍处于本发明的保护范围之列。

Claims (6)

1.一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32～36份，粒度为0～1mm的85特级高铝15～20份，粒度为0.089～1mm的90碳化硅5～12份，粒度为0～0.088mm的90碳化硅15～24份，92硅微粉2～6份，Secar-68水泥4～8份，320目的结合粘土8～12份，200目的金属硅粉1～3份，复合防爆材料0.1～0.2份，复合外加剂0.3～0.5份。
2.根据权利要求1所述的一种铜溜槽用铝碳质浇注料，其特征在于：所述85特级高铝中Al2O3的含量≥85％、Fe2O3的含量≤2.0％、TiO2的含量≤4.0％，所述85特级高铝的体积密度在2.9～3.1g/cm3；所述90黑碳化硅中SiC的含量≥90％；所述92硅微粉中SiO2的含量≥93％；所述Secar-68水泥中Al2O3的含量为65～68％、CaO的含量为30～33％；所述金属硅粉中Si的含量≥99％；所述复合防爆材料由金属铝粉和防爆纤维按照质量比1﹕1混合而得；所述复合外加剂由聚丙烯酸铵和单水氢氧化锂按照质量比10﹕1混合而得。
3.根据权利要求1所述的一种铜溜槽用铝碳质浇注料，其特征在于，所述结合粘土通过以下方式制成：将Al2O3含量为22～30％的200目软质粘土，与吸蓝量≥30的200目膨润土，按照5：1共磨到320目制成。
4.根据权利要求1-4中任一项所述的一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝32份，粒度为0～1mm的85特级高铝18份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅20份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土9份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
5.根据权利要求1-4中任一项所述的一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝36份，粒度为0～1mm的85特级高铝16份，粒度为0.089～1mm的90碳化硅10份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土12份，200目的金属硅粉2份，复合防爆材料0.1份，复合外加剂0.3份。
6.根据权利要求1-4中任一项所述的一种铜溜槽用铝碳质浇注料，其特征在于，其组分包括以下重量份数组成：粒度为1.001～4mm的85特级高铝34份，粒度为0～1mm的85特级高铝20份，粒度为0.089～1mm的90碳化硅5份，粒度为0～0.088mm的90碳化硅15份，92硅微粉4份，Secar-68水泥5份，320目的结合粘土11份，200目的金属硅粉2份，复合防爆材料0.2份，复合外加剂0.5份。
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