CN108218410A - 一种浮法玻璃窑用闸板砖的生产方法 - Google Patents

一种浮法玻璃窑用闸板砖的生产方法 Download PDF

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CN108218410A
CN108218410A CN201611133442.9A CN201611133442A CN108218410A CN 108218410 A CN108218410 A CN 108218410A CN 201611133442 A CN201611133442 A CN 201611133442A CN 108218410 A CN108218410 A CN 108218410A
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王永江
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Xuzhou Connor Hi-Tech Materials Science And Technology Co Ltd
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Abstract

本发明公开了一种浮法玻璃窑用闸板砖的生产方法，本发明属于熔融石英陶瓷制品生产领域，生产该产品使用的原料配方按重量百分比计算：10‑20目熔融石英硅微粉50‑52%、50‑60目熔融石英硅微粉44‑46%、碳化硼2%、氮化硅1%、纳米胶0.40%、过硫酸铵0.20%，四甲基乙二胺0.20%，聚乙二醇200 0.20%；该生产方法具有使用设备少、工艺简单、无污染废弃物排放、产品质量好等一系列优点；产品浮法玻璃窑用闸板砖在1200℃以下具有优异的热性能、化学稳定性能和电绝缘性能，主要作为浮法玻璃窑内衬使用。

Description

一种浮法玻璃窑用闸板砖的生产方法
技术领域
本发明属于熔融石英陶瓷制品生产领域，尤其涉及一种以浮法玻璃窑用闸板砖的方法。
背景技术
熔融石英陶瓷是一种以熔融石英为原料，采用陶瓷生产工艺制成的熔融石英材料，其特点是：热膨胀系数小、热稳定性好、电绝缘性好、耐化学侵蚀性好；石英陶瓷最大的优点是在l1O0℃ 以下时，其强度随着温度的升高而增加，从室温至1100 ℃时，其强度可增加33%，在1250℃时产品仍可正常使用。熔融石英陶瓷的主要产品种类繁多，如玻璃水平钢化炉用石英陶瓷辊、浮法玻璃窑用闸板砖、浮法玻璃退火炉用空心辊、铸钢用水口、金属带材热处理炉用空心辊、玻璃及冶金窑炉用水口、冲头、坩埚、炉体、科硫、匀科筒、搅拌棒、料盆、旋转管、焦炉炉门及上升管内衬以及绝缘插件、微波屏、灭弧罩、高效间歇炉用热绝缘器、激光反射器和其它光学零件、石英光源用光反射和吸收零件等．此外，在导弹、火箭、雷达等方面也有少量应用。这些产品使用的主要原料都是熔融石英硅微粉，不同点仅是硅微粉的粒度不同、辅料不同、产品的形状不同而已。本发明是一种浮法玻璃窑用闸板砖，专用于浮法玻璃窑内衬，该产品要求强度高、耐高温、使用温度可达1100℃左右，必须具有高温性能稳定不变形、热膨胀小、化学稳定性好、表面光滑细腻、经长期使用不易磨损等特点。本发明产品在生产中拟解决的关键技术问题有二项，一是熔融石英陶瓷粉的颗粒度的最佳配比；二是石英陶瓷外加剂对熔融石英陶瓷烧结性能的影响。
发明内容
本发明主要解决的问题是提供一种浮法玻璃窑用闸板砖的生产方法，生产该产品使用的原料重量配比为：10-20目熔融石英硅微粉50-52%、50-60目熔融石英硅微粉44-46%、碳化硼2%、氮化硅1%、纳米胶0.40%、过硫酸铵0.20%，四甲基乙二胺0.20%，聚乙二醇2000.20%。
本发明可以通过以下技术方案来实现：
（1）在搅拌罐中先将配方量的纳米胶、过硫酸铵、四甲基乙二胺、聚乙二醇200加入搅拌罐中，常温下搅拌混合均匀，再将配方量的10-20目熔融石英硅微粉、50-60目熔融石英硅微粉、碳化硼、氮化硅送入球磨机球磨1.8-2.0小时，将搅拌罐中的混合物加热至30-35℃后加入球磨机，掺混均匀；
（2）将球磨机中的物料加注入浮法玻璃窑用闸板砖模具，采用边浇铸边震动的方法浇铸成型，然后加压放置20-22小时后脱去模具，再自然晾干30-32小时；
（3）将晾干的浮法玻璃窑用闸板砖送入窑炉开始加热升温，先经2.0 -2.6小时的时间将烧结温度缓慢的从0℃升至400℃后，再在6小时时间内将烧结温度从400℃升至1200-1220℃，维持此温度28-29小时后停止加热，逐步降温至常温后得到浮法玻璃窑用闸板砖。
本发明的进一步技术方案是：
步骤（3）所述的窑炉为煤气发生梭式窑炉。
步骤（3）所述的窑炉内的烧结温度为1210℃，烧结的总时间为28.5小时。
本发明的有益效果是：提供了一种浮法玻璃窑用闸板砖的生产方法，该生产方法具有使用设备少、工艺简单、无污染废弃物排放、产品质量好等一系列优点；产品玻璃水平钢化炉用石英陶瓷辊在1200℃以下具有优异的热性能、化学稳定性能和电绝缘性能，主要作为浮法玻璃窑内衬使用。
具体实施方式
通过以下实施例进一步描述本发明。
实施例1：
在搅拌罐中先将将占总量为0.40%的纳米胶、0.20%的过硫酸铵，0.20%的四甲基乙二胺，0.20%的聚乙二醇200加入搅拌罐中，常温下搅拌混合均匀，再将占总量为50%的10-20目熔融石英硅微粉、占总量为46%的50-60目熔融石英硅微粉、占总量为2%的碳化硼、占总量为1%的氮化硅送入球磨机球磨1.8小时，将搅拌罐中的混合物加热至35℃后加入球磨机，掺混均匀；将球磨机中的物料加注入浮法玻璃窑用闸板砖模具，采用边浇铸边震动的方法浇铸成型，然后加压放置20小时后脱去模具，再自然晾干32小时；将晾干的浮法玻璃窑用闸板砖送入窑炉开始加热升温，先经2.0小时的时间将烧结温度缓慢的从0℃升至400℃后，再在6小时时间内将烧结温度从400℃升至1200℃，维持此温度28小时后停止加热，逐步降温至常温后得到浮法玻璃窑用闸板砖。
实施例2：
在搅拌罐中先将将占总量为0.40%的纳米胶、0.20%的过硫酸铵，0.20%的四甲基乙二胺，0.20%的聚乙二醇200加入搅拌罐中，常温下搅拌混合均匀，再将占总量为51%的10-20目熔融石英硅微粉、占总量为45%的50-60目熔融石英硅微粉、占总量为2%的碳化硼、占总量为1%的氮化硅送入球磨机球磨1.9小时，将搅拌罐中的混合物加热至32.5℃后加入球磨机，掺混均匀；将球磨机中的物料加注入浮法玻璃窑用闸板砖模具，采用边浇铸边震动的方法浇铸成型，然后加压放置21小时后脱去模具，再自然晾干31小时；将晾干的浮法玻璃窑用闸板砖送入窑炉开始加热升温，先经2.3小时的时间将烧结温度缓慢的从0℃升至400℃后，再在6小时时间内将烧结温度从400℃升至1210℃，维持此温度28.5小时后停止加热，逐步降温至常温后得到浮法玻璃窑用闸板砖。
实施例3：
在搅拌罐中先将将占总量为0.40%的纳米胶、0.20%的过硫酸铵，0.20%的四甲基乙二胺，0.20%的聚乙二醇200加入搅拌罐中，常温下搅拌混合均匀，再将占总量为52%的10-20目熔融石英硅微粉、占总量为44%的50-60目熔融石英硅微粉、占总量为2%的碳化硼、占总量为1%的氮化硅送入球磨机球磨2.0小时，将搅拌罐中的混合物加热至30℃后加入球磨机，掺混均匀；将球磨机中的物料加注入浮法玻璃窑用闸板砖模具，采用边浇铸边震动的方法浇铸成型，然后加压放置22小时后脱去模具，再自然晾干30小时；将晾干的浮法玻璃窑用闸板砖送入窑炉开始加热升温，先经2.6小时的时间将烧结温度缓慢的从0℃升至400℃后，再在6小时时间内将烧结温度从400℃升至1220℃，维持此温度28小时后停止加热，逐步降温至常温后得到浮法玻璃窑用闸板砖。

Claims (3)

1.一种浮法玻璃窑用闸板砖的生产方法，其原料配方按重量百分比计算：10-20目熔融石英硅微粉50-52%、50-60目熔融石英硅微粉44-46%、碳化硼2%、氮化硅1%、纳米胶0.40%、过硫酸铵0.20%，四甲基乙二胺0.20%，聚乙二醇200 0.20%；其特征是：
（1）在搅拌罐中先将配方量的纳米胶、过硫酸铵、四甲基乙二胺、聚乙二醇200加入搅拌罐中，常温下搅拌混合均匀，再将配方量的10-20目熔融石英硅微粉、50-60目熔融石英硅微粉、碳化硼、氮化硅送入球磨机球磨1.8-2.0小时，将搅拌罐中的混合物加热至30-35℃后加入球磨机，掺混均匀；
（2）将球磨机中的物料加注入浮法玻璃窑用闸板砖模具，采用边浇铸边震动的方法浇铸成型，然后加压放置20-22小时后脱去模具，再自然晾干30-32小时；
（3）将晾干的浮法玻璃窑用闸板砖送入窑炉开始加热升温，先经2.0 -2.6小时的时间将烧结温度缓慢的从0℃升至400℃后，再在6小时时间内将烧结温度从400℃升至1200-1220℃，维持此温度28-29小时后停止加热，逐步降温至常温后得到浮法玻璃窑用闸板砖。
2.根据权利要求1所述的一种浮法玻璃窑用闸板砖的生产方法，其特征是：步骤（3）所述的窑炉为煤气发生梭式窑炉。
3.根据权利要求1所述的一种浮法玻璃窑用闸板砖的生产方法，其特征是：步骤（3）所述的窑炉内的烧结温度为1210℃，烧结的总时间为28.5小时。
CN201611133442.9A 2016-12-10 2016-12-10 一种浮法玻璃窑用闸板砖的生产方法 Pending CN108218410A (zh)

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