CN105732053A - 一种镁钙砖炉底环缝捣打料的原料配比及制作方法 - Google Patents

一种镁钙砖炉底环缝捣打料的原料配比及制作方法 Download PDF

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CN105732053A
CN105732053A CN201610026059.7A CN201610026059A CN105732053A CN 105732053 A CN105732053 A CN 105732053A CN 201610026059 A CN201610026059 A CN 201610026059A CN 105732053 A CN105732053 A CN 105732053A
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郭银栋
张冰
冯云康
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Shanxi Luweibao Taigang Refractories Co Ltd
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Abstract

本发明涉及捣打料领域，具体是一种镁钙砖炉底环缝捣打料的原料配比极其制作方法。一种镁钙砖炉底环缝捣打料的原料配比，按照重量计，镁钙砂20?60份、镁砂10?30份、干燥粘土1?3份、膨润土1?2 份、二氧化硅1?2 份、固体树脂1?2 份；用桐油5?10结合。并且采用分步骤，添加原料混合制作成捣打料，具有良好的抗渣线、抗热震性和良好的高温稳定性，达到净化钢液的作用。

Description

一种镁钙砖炉底环缝捣打料的原料配比及制作方法
技术领域
本发明涉及捣打料领域，具体是一种镁钙砖炉底环缝捣打料的原料配比极其制作方法。
背景技术
镁钙质耐火材料是一种碱性耐火材料，具有抗高温，抗碱性侵蚀的优良特性，且不会造成环境污染，是一种绿色环保的耐火材料。镁钙质耐火材料被大量的应用到不锈钢和洁净钢的额生产中，能有效的去处钢水中的Al、S、P等杂质，起到净化钢水的目的。镁钙质炉底环缝捣打料主要配合镁钙砖使用，用于AOD炉炉底环缝捣打填充，不锈钢包包底环缝、透气砖及水口座砖四周捣打填充。镁钙质捣打料相较镁钙砖更加不易保存，易水化在存放和使用过程中极易吸收空气中的水分发生水化反应，这种水化反应伴随着水化增重和体积膨胀，严重影响使用寿命。目前国内生产的镁钙质捣打料，性能差异很大，主要有以下几方面的缺点：⑴可塑性差及施工性能差；⑵防水化性差，保存周期短；⑶组织结构致密性差。
发明内容
本发明所要解决的技术问题是：如何提供一种可塑性强、防水线强、保存周期长，组织结构致密性好的镁钙砖炉底环缝捣打料。
本本发明所采用的技术方案是：一种镁钙砖炉底环缝捣打料的原料配比，按照重量计，镁钙砂20-60份、镁砂10-30份、干燥粘土1-3份、膨润土1-2 份、二氧化硅1-2 份、固体树脂1-2 份；用桐油5-10结合。
作为一种优选方式：镁钙砂中，直径3-5毫米颗粒料5-20份、直径1-3毫米颗粒料5-25份、 直径0-1毫米颗粒料10-20份。
作为一种优选方式：镁砂为直径小于等于 0.088毫米的颗粒料。
作为一种优选方式：干燥粘土为直径小于等于 0.088毫米的颗粒料。
作为一种优选方式：膨润土为直径小于等于 0.088毫米的颗粒料。
作为一种优选方式：二氧化硅为直径小于等于 45微米的颗粒料。
作为一种优选方式：固体树脂为固体酚醛树脂。
一种制作镁钙砖炉底环缝捣打料的方法，按照如下的步骤进行
步骤一、将镁钙砂、镁砂、二氧化硅、固体树脂按照比例手动混合均匀；
步骤二、再加入干燥粘土和膨润土，手动混合均匀；
步骤三、加入桐油在搅拌机中搅拌，使混合均匀。
作为一种优选方式，增加步骤四，在60摄氏度环境下，加入纯碱调整PH=11-12，并搅拌5-10分钟后冷却到室温。
本发明的有益效果是：本发明主要是采用镁钙砂原料为主，通过确定镁钙砂最适宜的MgO/CaO比、纯度和致密度，使其具有良好的抗渣线、抗热震性和良好的高温稳定性，达到净化钢液的作用。基质中添加适量的广西粘土和膨润土，提高其可塑性能；添加适量的桐油，提高其保湿性和抗水化性能，解决保存周期短的问题，以取得更好的使用效果，通过在60摄氏度环境下，加入纯碱调整PH=11-12可以有效提高抗水化性能。
具体实施方式
实施例1
第一步 ：准备原料按照原料配比，按重量份计，
镁钙砂：直径3-5mm颗粒料 20份、直径1-3mm颗粒料20份、直径0-1mm颗粒料20份合共60份，干燥后混合均匀；
镁砂：直径小于等于 0.088mm 的细料30份；
二氧化硅：直径小于等于 45微米的颗粒料1份；
固体树脂：固体酚醛树脂1份；
干燥粘土：在不低于110℃温度下，将软质粘土进行干燥24小时，然后取2份
膨润土：膨润土2份；
桐油：桐油5份。
第二步、将镁钙砂、镁砂、二氧化硅、固体树脂按照比例手动混合均匀；
第三步、再加入干燥粘土和膨润土，手动混合均匀；
第四步、加入桐油在搅拌机中搅拌，使混合均匀。制得均匀混合的物料。
实施例2
按照实施例1进行制作，并增加以下步骤
第五步、在60摄氏度环境下，加入纯碱调整PH=11-12，并搅拌5-10分钟后冷却到室温。制得均匀混合的物料，通过调节PH值，并在60摄氏度环境下搅拌5-10分钟后冷却到室温可以使物料提高其保湿性和抗水化性能增加。

Claims (8)

1.一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：按照重量计，镁钙砂20-60份、镁砂10-30份、干燥粘土1-3份、膨润土1-2 份、二氧化硅1-2 份、固体树脂1-2 份；用桐油5-10结合。
2.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：镁钙砂中，直径3-5毫米颗粒料5-20份、直径1-3毫米颗粒料5-25份、 直径0-1毫米颗粒料10-20份。
3.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：镁砂为直径小于等于 0.088毫米的颗粒料。
4.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：干燥粘土为直径小于等于 0.088毫米的颗粒料。
5.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：膨润土为直径小于等于 0.088毫米的颗粒料。
6.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：二氧化硅为直径小于等于 45微米的颗粒料。
7.根据权利要求1所述的一种镁钙砖炉底环缝捣打料的原料配比，其特征在于：固体树脂为固体酚醛树脂。
8.利用权利要求1所述原料配比制作镁钙砖炉底环缝捣打料的方法，其特征在于按照如下的步骤进行
步骤一、将镁钙砂、镁砂、二氧化硅、固体树脂按照比例手动混合均匀；
步骤二、再加入干燥粘土和膨润土，手动混合均匀；
步骤三、加入桐油在搅拌机中搅拌，使混合均匀。
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CN110183213A (zh) * 2019-05-31 2019-08-30 武汉钢铁有限公司 一种添加废弃耐火材料的中间包干式工作衬及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110183213A (zh) * 2019-05-31 2019-08-30 武汉钢铁有限公司 一种添加废弃耐火材料的中间包干式工作衬及其制备方法

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