CN111187085A - 一种酸性石英砂炉衬材料的制备方法 - Google Patents

一种酸性石英砂炉衬材料的制备方法 Download PDF

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CN111187085A
CN111187085A CN201811357176.7A CN201811357176A CN111187085A CN 111187085 A CN111187085 A CN 111187085A CN 201811357176 A CN201811357176 A CN 201811357176A CN 111187085 A CN111187085 A CN 111187085A
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付卫东
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Xiangyang Juli High Technology Material Co ltd
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Abstract

本发明涉及一种酸性石英砂炉衬材料，属于筑炉设备制造技术领域。制备方法为：将10～20重量份的粒度为5～3mm的石英颗粒、10～40重量份的粒度为3～1mm的石英颗粒、10～35重量份的粒度为1～0.5mm的石英颗粒、10～25重量份的粒度为200目的石英细粉、4～20重量份的六硼化硅复合碳化硅微粉，先将50～80重量份的富铝镁铝尖晶石骨料和20～50重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料4～6重量份的纸浆废液，混合均匀后，再加入0.5～2重量份的外加剂，搅拌15～30min后即制得酸性石英砂炉衬材料。本发明提供一种酸性石英砂炉衬材料，制备得到的炉衬耐腐蚀性能高、耐磨性能高，工艺过程简单，生产成本低，采用的原料无毒无害，环保无污染。

Description

一种酸性石英砂炉衬材料的制备方法
技术领域
本发明涉及到一种酸性石英砂炉衬材料，属于筑炉设备制造技术领域。
背景技术
目前，铸造行业中频感应电炉炉衬材料在使用过程中，底部受侵蚀严重。一般采用的方案是在筑炉过程中，将电炉底部打厚一些，然而，在使用过程中仍然是电炉底部最先损失，而电炉上部不会有太大损失，因此，在经过屡次修补后，感应电炉下部的损失仍然远远高于上部，电炉上部没有得到利用被丢弃，使得电路炉衬材料并没有被最大化利用。
现有的熔炼碳钢的中频感应电炉用炉衬材料多采用石英为主要原材料、并外加3～5重量份硼酸为烧结剂混合而成。石英虽具有较高的熔点(1713℃)，但在不同温度下，石英可发生晶型转变导致降低炉衬材料的抗侵蚀性能，进一步加剧炉衬底部的侵蚀。
发明内容
本发明的目的在于提供一种酸性石英砂炉衬材料，制备方法简单，制备得到的酸性石英砂炉衬耐腐蚀性能、耐磨性能高，工艺过程简单，生产成本低，采用的原料无毒无害，环保无污染。
本发明提供一种酸性石英砂炉衬材料的制备方法，将10～20重量份的粒度为5～3mm的石英颗粒、10～40重量份的粒度为3～1mm的石英颗粒、10～35重量份的粒度为1～0.5mm的石英颗粒、10～25重量份的粒度为200目的石英细粉、4～20重量份的六硼化硅复合碳化硅微粉，先将50～80重量份的富铝镁铝尖晶石骨料和20～50重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料4～6重量份的纸浆废液，混合均匀后，再加入0.5～2重量份的外加剂，搅拌15～30min后即制得酸性石英砂炉衬材料。
作为本发明的进一步改进，上述粒度为5～3mm、3～1mm、1～0.5mm、200目的石英的SiO2含量≥98.5重量份。
作为本发明的进一步改进，外加剂为硼酸、硼酐中的一种或一种以上的混合物。
与现有技术相比，本发明的有益效果：
1、本发明采用不同粒径的石英颗粒、六硼化硅复合碳化硅微粒、富铝镁铝尖晶石骨料和富铝镁铝尖晶石细粉作为材料制备的酸性石英砂炉衬，具有优良的耐腐蚀性能、耐磨性能，酸碱不容易损耗内衬，而且物料附着性小，可以提高装置的搅拌混合性能，延长装置的使用寿命；
2、本发明的制备工艺流程时间短、运行成本低、所使用的试剂不污染环境，本制备方法环境友好，环保。
具体实施方式
实施例1：
本发明提供一种酸性石英砂炉衬材料的制备方法，将10重量份的粒度为5mm的石英颗粒、10重量份的粒度为3mm的石英颗粒、10重量份的粒度为1mm的石英颗粒、10重量份的粒度为200目的石英细粉、4重量份的六硼化硅复合碳化硅微粉，先将50重量份的富铝镁铝尖晶石骨料和20重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料4重量份的纸浆废液，混合均匀后，再加入0.5重量份的外加剂，搅拌15min后即制得酸性石英砂炉衬材料。
作为本发明的进一步改进，上述粒度为5mm、3mm、1mm、200目的石英的SiO2含量≥98.5重量份。
作为本发明的进一步改进，外加剂为硼酸、硼酐中的一种或一种以上的混合物。
实施例2：
本发明提供一种酸性石英砂炉衬材料的制备方法，将20重量份的粒度为3mm的石英颗粒、40重量份的粒度为1mm的石英颗粒、35重量份的粒度为0.5mm的石英颗粒、25重量份的粒度为200目的石英细粉、20重量份的六硼化硅复合碳化硅微粉，先将80重量份的富铝镁铝尖晶石骨料和50重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料6重量份的纸浆废液，混合均匀后，再加入2重量份的外加剂，搅拌30min后即制得酸性石英砂炉衬材料。
作为本发明的进一步改进，上述粒度为3mm、1mm、0.5mm、200目的石英的SiO2含量≥98.5重量份。
作为本发明的进一步改进，外加剂为硼酸、硼酐中的一种或一种以上的混合物。
实施例3：
本发明提供一种酸性石英砂炉衬材料的制备方法，将15重量份的粒度为4mm的石英颗粒、20重量份的粒度为2mm的石英颗粒、25重量份的粒度为0.8mm的石英颗粒、20重量份的粒度为200目的石英细粉、15重量份的六硼化硅复合碳化硅微粉，先将60重量份的富铝镁铝尖晶石骨料和35重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料4～6重量份的纸浆废液，混合均匀后，再加入1.5重量份的外加剂，搅拌20min后即制得酸性石英砂炉衬材料。
作为本发明的进一步改进，上述粒度为4mm、2mm、0.8mm、200目的石英的SiO2含量≥98.5重量份。
作为本发明的进一步改进，外加剂为硼酸、硼酐中的一种或一种以上的混合物。

Claims (3)

1.一种酸性石英砂炉衬材料的制备方法，其特征在于：将10～20重量份的粒度为5～3mm的石英颗粒、10～40重量份的粒度为3～1mm的石英颗粒、10～35重量份的粒度为1～0.5mm的石英颗粒、10～25重量份的粒度为200目的石英细粉、4～20重量份的六硼化硅复合碳化硅微粉，先将50～80重量份的富铝镁铝尖晶石骨料和20～50重量份的富铝镁铝尖晶石细粉混合为混合料，外加上述混合料4～6重量份的纸浆废液，混合均匀后，再加入0.5～2重量份的外加剂，搅拌15～30min后即制得酸性石英砂炉衬材料。
2.根据权利要求1所述的一种酸性石英砂炉衬材料的制备方法，其特征在于：上述粒度为5～3mm、3～1mm、1～0.5mm、200目的石英的SiO2含量≥98.5重量份。
3.根据权利要求1或2所述的一种酸性石英砂炉衬材料的制备方法，其特征在于：外加剂为硼酸、硼酐中的一种或一种以上的混合物。
CN201811357176.7A 2018-11-15 2018-11-15 一种酸性石英砂炉衬材料的制备方法 Pending CN111187085A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111675544A (zh) * 2020-05-26 2020-09-18 襄阳聚力新材料科技有限公司 一种超高温环境用酸性炉衬料及其制备方法
CN114988897A (zh) * 2022-06-30 2022-09-02 包头钢铁（集团）有限责任公司 一种中频真空感应炉用炉衬材料及其制备方法和应用
CN115772030A (zh) * 2022-12-23 2023-03-10 英赛德耐火材料（镇江）有限公司 一种具备大颗粒石英砂干振料的炉衬配方及其加工方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111675544A (zh) * 2020-05-26 2020-09-18 襄阳聚力新材料科技有限公司 一种超高温环境用酸性炉衬料及其制备方法
CN114988897A (zh) * 2022-06-30 2022-09-02 包头钢铁（集团）有限责任公司 一种中频真空感应炉用炉衬材料及其制备方法和应用
CN115772030A (zh) * 2022-12-23 2023-03-10 英赛德耐火材料（镇江）有限公司 一种具备大颗粒石英砂干振料的炉衬配方及其加工方法

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Application publication date: 20200522