CN109467449A - 一种抗侵蚀硅莫砖的制备方法 - Google Patents

一种抗侵蚀硅莫砖的制备方法 Download PDF

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CN109467449A
CN109467449A CN201811560518.5A CN201811560518A CN109467449A CN 109467449 A CN109467449 A CN 109467449A CN 201811560518 A CN201811560518 A CN 201811560518A CN 109467449 A CN109467449 A CN 109467449A
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powder
erosion
mullite brick
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罗佳
李淑静
姚伯洪
姚英
俞江
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WUXI YUANNENG REFRACTORY MATERIALS CO Ltd
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Abstract

本发明属于耐火材料的技术领域，具体涉及一种抗侵蚀硅莫砖的制备方法，按配方准备各原料干料搅拌，加入水再搅拌，原料包括高铝矾土熟料、氧化硅微粉、碳化硅粉、红柱石粉、纳米级金属铝粉、结合剂；将困料后的混合物料用压力机高压压制成砖坯；干燥后的砖坯送入隧道窑进行烧成。本发明提供的一种抗侵蚀硅莫砖的制备方法，具有耐磨损、抗剥落、抗酸碱能力强、热稳定性优良的特点，导热系数小、体积密度轻，能降低筒外温度，并且该硅莫砖制备方法科学简单、实施过程无污染，适合工业推广。

Description

一种抗侵蚀硅莫砖的制备方法
技术领域
本发明属于耐火材料的技术领域，具体涉及一种抗侵蚀硅莫砖的制备方法。
背景技术
硅莫砖因其抗高温性能强又具备耐磨耐腐蚀、导热性 能好的优点，时至今日，硅莫砖已经成为水泥回转窑较理想的选择。但是，硅莫 砖优点虽多，同样存在着缺点。其中，最大的问题在于硅莫砖导热系数过高，容 易引起设备温度过高。
发明内容
本发明的目的在于针对现有技术的不足，提供一种抗侵蚀硅莫砖的制备方法。为实现上述目的，本发明所采用的技术方案是：
一种抗侵蚀硅莫砖的制备方法，包括以下步骤：
（1）按配方准备各原料，倒入搅拌机中，进行干料搅拌5～10分钟，加入2～5份的水，再搅拌10～15分钟；
原料包括以下重量份数组成：45~65份的高铝矾土熟料、5~12份的氧化硅微粉、10~15份的碳化硅粉、6～15份红柱石粉、2～5份的纳米级金属铝粉、8~14份的结合剂；
（2）将搅拌均匀的混合物料进行困料处理，困料的时间为2～4小时；
（3）将困料后的混合物料用压力机高压压制成砖坯；
（4）将砖坯在100～200℃条件下烘烤干燥，干燥的时间为8～16小时；
（5）干燥后的砖坯送入隧道窑进行烧成，烧成的温度为1150～1250℃，烧成48～60h。
其中，所述的高铝矾土熟料包括，粒径在1~3mm的高铝矾土熟细料，粒径大于3mm的高铝矾土熟粗料，高铝矾土熟细料和高铝矾土熟粗料的质量比1:2~4。
所述的碳化硅粉、红柱石粉的细度均不大于200目。
所述的结合剂由以下原料按照质量份数组成：6～12份的磷酸二氢铝、2～8份的聚乙烯醇、15～25份的高铝水泥；按配方量取各原料，磷酸二氢铝粉磨后与其他原料混合5～10分钟，加入5～8份的水，搅拌5～10分钟。
所述莫来石细粉 细度不大于200目。
本发明提供的一种抗侵蚀硅莫砖的制备方法，具有耐磨损、抗剥落、抗酸碱能力强、 热稳定性优良的特点，导热系数小、体积密度轻，能降低筒外温度，并且该硅莫砖制备方法科学简单、实施过程无污染，适合工业推广。
具体实施方式
下面结合具体实施方式对本发明做进一步的描述，并非对本发明保护范围的限制。
实施例1
一种抗侵蚀硅莫砖的制备方法，包括以下步骤：
（1）按配方准备各原料，倒入搅拌机中，进行干料搅拌10分钟，加入5份的水，再搅拌10～15分钟；
原料包括以下重量份数组成：55份的高铝矾土熟料、8份的氧化硅微粉、12份的碳化硅粉、8份红柱石粉、4份的纳米级金属铝粉、12份的结合剂；
其中，所述的高铝矾土熟料包括，粒径在1~3mm的高铝矾土熟细料，粒径大于3mm的高铝矾土熟粗料，高铝矾土熟细料和高铝矾土熟粗料的质量比1:3。
所述的碳化硅粉、红柱石粉的细度均不大于200目。
所述的结合剂由以下原料按照质量份数组成：10份的磷酸二氢铝、5份的聚乙烯醇、18份的高铝水泥；按配方量取各原料，磷酸二氢铝粉磨后与其他原料混合8，加入6份的水，搅拌8。
所述莫来石细粉 细度不大于200目。
（2）将搅拌均匀的混合物料进行困料处理，困料的时间为2～4小时；
（3）将困料后的混合物料用压力机高压压制成砖坯；
（4）将砖坯在100～200℃条件下烘烤干燥，干燥的时间为8～16小时；
（5）干燥后的砖坯送入隧道窑进行烧成，烧成的温度为1150～1250℃，烧成48～60h。
实施例2
一种抗侵蚀硅莫砖的制备方法，包括以下步骤：
（1）按配方准备各原料，倒入搅拌机中，进行干料搅拌10分钟，加入4份的水，再搅拌15分钟；
原料包括以下重量份数组成：63份的高铝矾土熟料、9份的氧化硅微粉、10份的碳化硅粉、8份红柱石粉、3份的纳米级金属铝粉、12份的结合剂；
其中，所述的高铝矾土熟料包括，粒径在1~3mm的高铝矾土熟细料，粒径大于3mm的高铝矾土熟粗料，高铝矾土熟细料和高铝矾土熟粗料的质量比1:2。
所述的碳化硅粉、红柱石粉的细度均不大于200目。
所述的结合剂由以下原料按照质量份数组成：7份的磷酸二氢铝、4份的聚乙烯醇、18份的高铝水泥；按配方量取各原料，磷酸二氢铝粉磨后与其他原料混合5～10分钟，加入8份的水，搅拌5～10分钟。
所述莫来石细粉 细度不大于200目。
（2）将搅拌均匀的混合物料进行困料处理，困料的时间为2～4小时；
（3）将困料后的混合物料用压力机高压压制成砖坯；
（4）将砖坯在100～200℃条件下烘烤干燥，干燥的时间为8～16小时；
（5）干燥后的砖坯送入隧道窑进行烧成，烧成的温度为1150～1250℃，烧成48～60h。
实施例3
一种抗侵蚀硅莫砖的制备方法，包括以下步骤：
（1）按配方准备各原料，倒入搅拌机中，进行干料搅拌5～10分钟，加入2～5份的水，再搅拌10～15分钟；
原料包括以下重量份数组成：58份的高铝矾土熟料、10份的氧化硅微粉、12份的碳化硅粉、9份红柱石粉、4份的纳米级金属铝粉、11份的结合剂；
其中，所述的高铝矾土熟料包括，粒径在1~3mm的高铝矾土熟细料，粒径大于3mm的高铝矾土熟粗料，高铝矾土熟细料和高铝矾土熟粗料的质量比1: 4。
所述的碳化硅粉、红柱石粉的细度均不大于200目。
所述的结合剂由以下原料按照质量份数组成：7份的磷酸二氢铝、7份的聚乙烯醇、15份的高铝水泥；按配方量取各原料，磷酸二氢铝粉磨后与其他原料混合5～10分钟，加入8份的水，搅拌5～10分钟。
所述莫来石细粉 细度不大于200目。
（2）将搅拌均匀的混合物料进行困料处理，困料的时间为2～4小时；
（3）将困料后的混合物料用压力机高压压制成砖坯；
（4）将砖坯在100～200℃条件下烘烤干燥，干燥的时间为8～16小时；
（5）干燥后的砖坯送入隧道窑进行烧成，烧成的温度为1150～1250℃，烧成48～60h。

Claims (5)

1.一种抗侵蚀硅莫砖的制备方法，其特征在于，包括以下步骤：
（1）按配方准备各原料，倒入搅拌机中，进行干料搅拌5～10分钟，加入2～5份的水，再搅拌10～15分钟；
原料包括以下重量份数组成：45~65份的高铝矾土熟料、5~12份的氧化硅微粉、10~15份的碳化硅粉、6～15份红柱石粉、2～5份的纳米级金属铝粉、8~14份的结合剂；
（2）将搅拌均匀的混合物料进行困料处理，困料的时间为2～4小时；
（3）将困料后的混合物料用压力机高压压制成砖坯；
（4）将砖坯在100～200℃条件下烘烤干燥，干燥的时间为8～16小时；
（5）干燥后的砖坯送入隧道窑进行烧成，烧成的温度为1150～1250℃，烧成48～60h。
2.根据权利要求1所述的一种抗侵蚀硅莫砖的制备方法，其特征在于，所述的高铝矾土熟料包括，粒径在1~3mm的高铝矾土熟细料，粒径大于3mm的高铝矾土熟粗料，高铝矾土熟细料和高铝矾土熟粗料的质量比1:2~4。
3.根据权利要求1所述的一种抗侵蚀硅莫砖的制备方法，其特征在于，所述的碳化硅粉、红柱石粉的细度均不大于200目。
4.根据权利要求1所述的一种抗侵蚀硅莫砖的制备方法，其特征在于，所述的结合剂由以下原料按照质量份数组成：6～12份的磷酸二氢铝、2～8份的聚乙烯醇、15～25份的高铝水泥；按配方量取各原料，磷酸二氢铝粉磨后与其他原料混合5～10分钟，加入5～8份的水，搅拌5～10分钟。
5. 根据权利要求4所述的一种抗侵蚀硅莫砖的制备方法，其特征在于，所述莫来石细粉 细度不大于200目。
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