CN110981450A - 新型中间包永久层浇注料 - Google Patents

新型中间包永久层浇注料 Download PDF

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CN110981450A
CN110981450A CN201911325640.9A CN201911325640A CN110981450A CN 110981450 A CN110981450 A CN 110981450A CN 201911325640 A CN201911325640 A CN 201911325640A CN 110981450 A CN110981450 A CN 110981450A
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novel
mullite
tundish
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张远春
陈涛
严翀
毛朋
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Panzhihua Gangcheng Group Co Ltd
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Abstract

本发明属于耐火材料技术领域，具体涉及一种新型中间包永久层浇注料，由以下重量配比的原料组成：粒度3‑5.0mm的矾土熟料15～18份、粒度0.5‑1mm的矾土熟料40～45份、粒度0.1mm以下的改性氧化锆与莫来石的混合物8～16份、纳米氧化锌2～4份、氧化铝微粉12～16份，以及占上述所有原料总重量2～5％的粘结剂。与现有浇注料相比，本发明研制的中间包浇注料具有更好的耐腐性和强度。

Description

新型中间包永久层浇注料
技术领域
本发明属于耐火材料技术领域，具体涉及一种新型中间包永久层浇注料。
背景技术
定型的耐火材料作为烟气管道的耐火衬里在使用一段时间后容易变形，剥落。修补难度大。不定型的耐火浇注料具有成本低，使用方便，适用范围广，整体性及使用效果好的优点。但是常用的永久层浇注料使用了铝酸钙水泥作为结合剂并加入了氧化硅微粉，这会导致材料在高温条件下形成钙长石、钙黄长石，导致浇注料热态强度大大降低。此外用于垃圾处理的等离子熔融炉由于原料成分复杂多变，其烟气组成也随着不断改变。这对烟气管路的耐火衬里的耐腐蚀性提出了更高的要求。
发明内容
本发明的目的在于提供一种新型中间包永久层浇注料。
一种新型中间包永久层浇注料，由以下重量配比的原料组成：粒度3～5.0mm的矾土熟料15～18份、粒度0.5～1mm的矾土熟料40～45份、粒度0.1mm以下的改性氧化锆与莫来石的混合物8～16份、纳米氧化锌2～4份、氧化铝微粉12～16份，以及占上述所有原料总重量2～5％的粘结剂。
其中，上述新型中间包浇注料，其特征在于，由以下重量配比的原料组成：粒度3～5.0mm的矾土熟料18份、粒度0.5～1mm的矾土熟料42份、粒度0.1mm以下的改性氧化锆与莫来石的混合物15份、纳米氧化锌3份、氧化铝微粉15份，以及占上述所有原料总重量2～5％的粘结剂。
其中，上述新型中间包浇注料，所述矾土熟料中Al2O3≥84wt％。
其中，上述新型中间包浇注料，所述改性氧化锆由以下方法制备而成：将重量比为7：3的氧化锆和氧化铕混合，搅拌8分钟后在1300～1500℃条件下烧制，保温3.5小时，冷却后破碎成粒径在0.1mm以下的微粒制成改性氧化锆。
其中，上述新型中间包浇注料，氧化锆烧制过程中900℃以下时升温速率控制在15℃/h以下，900℃以上时升温速率控制在25℃/h以下。
其中，上述新型中间包浇注料，所述莫来石由以下方法制备而成：将煤矸石破碎至400目以下，然后在1100℃煅烧2小时，冷却后破碎成粒径在0.1mm以下的微粒制成莫来石。
其中，上述新型中间包浇注料，所述改性氧化锆与莫来石的重量比为1.5：1。
其中，上述新型中间包浇注料，所述氧化铝微粉的粒度是0.05～0.032mm。
其中，上述新型中间包浇注料，所述粘接剂为磷酸铝。
本发明的有益效果是：
与现有浇注料相比，本发明研制的中间包浇注料具有更好的耐腐性和强度。
具体实施方式
下面通过实施例对本发明作进一步详细的说明，但并不因此将本发明保护范围限制在所述的实施例范围之中。
以下实施例中矾土熟料的成分含量及基本参数见下表。
CaO+MgO Al<sub>2</sub>O<sub>3</sub> Fe<sub>2</sub>O<sub>3</sub> TiO<sub>2</sub> Na<sub>2</sub>O+K<sub>2</sub>O 体积密度g/cm<sup>3</sup> 吸水率/％
CaO≤0.8％ ≥84.0％ ≤2.7％ ≤4.0％ ≤0.4％ ≥3.00 ≤4.0
实施例1
一种新型中间包永久层浇注料，由耐火材料以及占耐火原料重量3％的磷酸铝混合制成，所述耐火原料由以下重量份的组分组成：粒度3-5.0mm的矾土熟料18份，0.5-1mm的矾土熟料占42份，粒度0.1mm以下的改性氧化锆与莫来石的混合物占15份，纳米氧化锌3份，氧化铝微粉15份，其中，改性氧化锆与莫来石的重量比为1.5：1。
制备步骤如下：
1)将氧化锆和氧化铕(氧化锆和氧化铕的重量比为7:3)混合，搅拌8分钟后在1500℃条件下烧制，900℃以下时升温速率控制在15℃/h以下，900℃以上时升温速率控制在25℃/h以下，保温3.5小时，冷却后破碎成粒径在0.1mm以下的微粒制成改性氧化锆；将煤矸石破碎至400目以下，然后在1100℃煅烧2小时，冷却后破碎成粒径在0.1mm以下的微粒制成莫来石；
2)按重量份分别称取粗骨料、中骨料、细骨料、纳米氧化锌、氧化铝微粉各原料粉末，混合均匀，然后加入原料总重量3％的磷酸铝，混合搅拌10min，再高速混练20min，即可。
实施例2
一种新型中间包永久层浇注料，由耐火原料以及占耐火原料重量4％的磷酸铝混合制成，所述耐火原料由以下重量份的组分组成：粒度3-5.0mm的矾土熟料16份，0.5-1mm的矾土熟料占40份，粒度0.1mm以下的改性氧化锆与莫来石的混合物占15份，纳米氧化锌4份，氧化铝微粉14份，其中，改性氧化锆与莫来石的重量比为1.5：1。
制备步骤如下：
1)将氧化锆和氧化铕(氧化锆和氧化铕的重量比为7:3)混合，搅拌8分钟后在1300℃条件下烧制，900℃以下时升温速率控制在15℃/h以下，900℃以上时升温速率控制在25℃/h以下，保温3.5小时，冷却后破碎成粒径在0.1mm以下的微粒制成改性氧化锆；将煤矸石破碎至400目以下，然后在1100℃煅烧2小时，冷却后破碎成粒径在0.1mm以下的微粒制成莫来石；
2)按重量份分别称取粗骨料、中骨料、细骨料、纳米氧化锌、氧化铝微粉各原料粉末，混合均匀，然后加入原料总重量4％的磷酸铝，混合搅拌5min，再高速混练15min，即可。

Claims (9)

1.新型中间包永久层浇注料，其特征在于，由以下重量配比的原料组成：粒度3～5.0mm的矾土熟料15～18份、粒度0.5～1mm的矾土熟料40～45份、粒度0.1mm以下的改性氧化锆与莫来石的混合物8～16份、纳米氧化锌2～4份、氧化铝微粉12～16份，以及占上述所有原料总重量2～5％的粘结剂。
2.根据权利要求1所述新型中间包浇注料，其特征在于，由以下重量配比的原料组成：粒度3～5.0mm的矾土熟料18份、粒度0.5～1mm的矾土熟料42份、粒度0.1mm以下的改性氧化锆与莫来石的混合物15份、纳米氧化锌3份、氧化铝微粉15份，以及占上述所有原料总重量2～5％的粘结剂。
3.根据权利要求1或2所述新型中间包浇注料，其特征在于，所述矾土熟料中Al2O3≥84wt％。
4.根据权利要求1或2所述新型中间包浇注料，其特征在于，所述改性氧化锆由以下方法制备而成：将重量比为7：3的氧化锆和氧化铕混合，搅拌8分钟后在1300～1500℃条件下烧制，保温3.5小时，冷却后破碎成粒径在0.1mm以下的微粒制成改性氧化锆。
5.根据权利要求4所述新型中间包浇注料，其特征在于：氧化锆烧制过程中900℃以下时升温速率控制在15℃/h以下，900℃以上时升温速率控制在25℃/h以下。
6.根据权利要求1或2所述新型中间包浇注料，其特征在于：所述莫来石由以下方法制备而成：将煤矸石破碎至400目以下，然后在1100℃煅烧2小时，冷却后破碎成粒径在0.1mm以下的微粒制成莫来石。
7.根据权利要求1或2所述新型中间包浇注料，其特征在于：所述改性氧化锆与莫来石的重量比为1.5：1。
8.根据权利要求1或2所述新型中间包浇注料，其特征在于：所述氧化铝微粉的粒度是0.05～0.032mm。
9.根据权利要求1或2所述新型中间包浇注料，其特征在于：所述粘接剂为磷酸铝。
CN201911325640.9A 2019-12-20 2019-12-20 新型中间包永久层浇注料 Pending CN110981450A (zh)

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CN1763246A (zh) * 2004-07-30 2006-04-26 联合工艺公司 弥散强化稀土稳定的氧化锆
CN106278200A (zh) * 2016-08-16 2017-01-04 安徽瑞泰新材料科技有限公司 一种高耐磨氧化铝陶瓷球及其制备方法
CN110407596A (zh) * 2019-09-06 2019-11-05 山西普皓环保科技有限公司 一种含锆刚玉耐火浇注料及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1763246A (zh) * 2004-07-30 2006-04-26 联合工艺公司 弥散强化稀土稳定的氧化锆
CN106278200A (zh) * 2016-08-16 2017-01-04 安徽瑞泰新材料科技有限公司 一种高耐磨氧化铝陶瓷球及其制备方法
CN110407596A (zh) * 2019-09-06 2019-11-05 山西普皓环保科技有限公司 一种含锆刚玉耐火浇注料及其制备方法

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Application publication date: 20200410