CN109503135A - 高强自流型防爆耐火浇注料 - Google Patents

高强自流型防爆耐火浇注料 Download PDF

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CN109503135A
CN109503135A CN201811435930.4A CN201811435930A CN109503135A CN 109503135 A CN109503135 A CN 109503135A CN 201811435930 A CN201811435930 A CN 201811435930A CN 109503135 A CN109503135 A CN 109503135A
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韩亚伟
王华龙
黄朋
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JIANGSU HENGNAI FURNACE CHARGE GROUP CO Ltd
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Abstract

本发明涉及耐火材料领域,具体涉及一种高强自流型防爆耐火浇注料。本发明的高强自流型防爆耐火浇注料包括以下质量百分数的组分:粒径为0‑1mm的棕刚玉6%~15%,粒径为1‑3mm的棕刚玉10%~20%,粒径为3‑5mm的棕刚玉15%~30%,粒径为0‑1mm的SiC颗粒5%~10%,SiO2微粉3%~5%,SiC细粉3%~7%,白刚玉粉8%~18%,α‑Al2O3微粉3%~6%,纯铝酸钙水泥3%~8%。本发明通过采用不同粒径的棕刚玉原料作为主料,增强致密性能以及耐压强度,且降低成本,通过加入聚丙烯纤维复合金属铝粉,实现抗氧化性能的同时增强浇注料的韧性,提高抗震性以及防爆性能,自流性能较好。

Description

高强自流型防爆耐火浇注料
技术领域
本发明涉及耐火材料领域,特别的,涉及一种高强自流型防爆耐火浇注料。
背景技术
目前,水泥窑篦冷机、窑头罩等不规则部位大多采用铝矾土为主要原料的耐火浇注料,该浇注料需要振动设备振捣,而水泥窑不规则部位很难支模以及振动,使浇注料易打空,施工队通常加大加水量来提高浇注料的流动性,浇注料会出现离析现象,浇注料的强度大大降低,而且为了提高施工效率快速烘烤会导致浇注料爆裂脱落,水泥窑被迫停窑,影响了水泥窑正常生产。
发明内容
本发明所要解决的技术问题是:提供一种施工方便、抗爆性能好,致密耐磨,自流性能好的高强自流型防爆耐火浇注料。
本发明解决其技术问题所要采用的技术方案是:一种高强自流型防爆耐火浇注料,包括以下质量百分数的组分:粒径为0-1mm的棕刚玉6%~15%,粒径为 1-3mm的棕刚玉10%~20%,粒径为3-5mm的棕刚玉15%~30%,粒径为0-1mm的 SiC颗粒5%~10%,SiO2微粉3%~5%,SiC细粉3%~7%,白刚玉粉8%~18%,α -Al2O3微粉3%~6%,纯铝酸钙水泥3%~8%。
上述质量百分数为各组分占所述高强自流型防爆耐火浇注料总重量的百分数。
进一步地,所述高强自流型防爆耐火浇注料还包括质量分数为0%~0.4%的三聚磷酸钠。
进一步地,所述高强自流型防爆耐火浇注料还包括质量分数为0%~0.6%的聚丙烯纤维。
进一步地,所述高强自流型防爆耐火浇注料还包括质量分数为0%~2%的金属铝粉。
进一步地,所述高强自流型防爆耐火浇注料还包括质量分数为0%~2%的有机硅流平剂。
进一步地,所述SiC细粉的粒度小于0.088mm。
进一步地,所述三聚磷酸钠的质量分数为0.1%-0.4%。
进一步地,所述聚丙烯纤维的质量分数为0.1%-0.6%。
进一步地,所述金属铝粉的质量分数为0.1%-2%。
进一步地,所述有机硅流平剂的质量分数为0.1%-2%。
本发明的有益效果是:
本发明加入三聚磷酸钠分散剂,减少加水量,缩短浇注料的结合时间,避免浇注料出现离析现象。本发明加入聚丙烯纤维,增强浇注料的韧性,提高抗震性,增强浇注料的防爆性能,增强抗折强度,抑制浇注料在养护、干燥及热处理后的收缩,同时由于金属铝粉的存在,金属铝粉活性比较高,在常温下与浇注料中的自由水发生化学反应放出氢气,此反应为放热过程,放出的氢气使浇注料具有微小的排气孔,使浇注料在快速烘烤下,水可以通过气孔排出,聚丙烯纤维的燃点约500℃,燃烧后材料内部会流下微小的气孔通道,方便水气的排放,既保证浇注料快速烘烤不爆裂又不影响施工性能和使用性能。
本发明加入抗氧化剂金属铝粉,抗氧化剂在800℃以上温度优先与空气中的氧发生反应,生成致密的三氧化二铝膜,阻止SiC等物料的进一步氧化,提高材料的抗氧化性。本发明加入有机硅流平剂,使本发明的浇注料在较小的加水量时可以达到较好的自流效果。
本发明采用不同粒径的棕刚玉原料作为主料,对本发明的高强自流型防爆耐火浇注料起支撑作用的同时,增强致密性能,增强耐压强度,同时使本发明的高强自流型防爆耐火浇注料的自流值、相对塑性粘度满足需求,相对屈服应力减小,并减少了白刚玉的使用量,避免致密刚玉的使用,降低成本。
本发明的高强自流型防爆耐火浇注料,自流性能好,防爆性能优,耐高温,使用时加水量少,方便施工,增加了材料施工的致密性,能够满足水泥窑某些不易施工的、易爆部位的长时间使用。
具体实施方式
实施例一
本实施例的高强自流型防爆耐火浇注料,将以下质量百分数的组分混匀即可:粒径为0-1mm的棕刚玉6%,粒径为1-3mm的棕刚玉19.7%,粒径为3-5mm 的棕刚玉30%,粒径为0-1mm的SiC颗粒10%,SiO2微粉3%,SiC细粉7%,白刚玉粉8%,α-Al2O3微粉6%,纯铝酸钙水泥8%,三聚磷酸钠0.1%,聚丙烯纤维0.1%,金属铝粉2%,有机硅流平剂0.1%。
本实施例中:SiC细粉的粒度为0.06mm。
实施例二
本实施例的高强自流型防爆耐火浇注料,将以下质量百分数的组分混匀即可:称取以下质量分数的物料:粒径为0-1mm的棕刚玉15%,粒径为1-3mm的棕刚玉10%,粒径为3-5mm的棕刚玉29.8%,粒径为0-1mm的SiC颗粒5%,SiO2微粉4.8%,SiC细粉3%,白刚玉粉15.6%,α-Al2O3微粉5.9%,纯铝酸钙水泥 7.9%,三聚磷酸钠0.4%,聚丙烯纤维0.6%,金属铝粉0.1%,有机硅流平剂1.9%。
本实施例中:SiC细粉的粒度为0.05mm。
实施例三
本实施例的高强自流型防爆耐火浇注料,将以下质量百分数的组分混匀即可:称取以下质量分数的物料:粒径为0-1mm的棕刚玉14.45%,粒径为1-3mm 的棕刚玉20%,粒径为3-5mm的棕刚玉15%,粒径为0-1mm的SiC颗粒9.8%,SiO2微粉5%,SiC细粉6.9%,白刚玉粉18%,α-Al2O3微粉3%,纯铝酸钙水泥3%,三聚磷酸钠0.38%,聚丙烯纤维0.57%,金属铝粉1.9%,有机硅流平剂2%。
本实施例中:SiC细粉的粒度为0.08mm。
对比例
本对比例的浇注料,将以下质量百分数的物料混匀即可:粒径为1-3mm的棕刚玉55%,粒径为0-1mm的SiC颗粒12%,SiO2微粉6%,SiC细粉8%,白刚玉粉10%,α-Al2O3微粉3%,纯铝酸钙水泥3%,三聚磷酸钠0.35%,聚丙烯纤维0.65%,有机硅流平剂2%。
实验例
对实施例一至实施例三及对比例的浇注料进行性能测试,结果见表1。
表1实施例及对比例中的浇注料性能测试数据
由表1可知,实施例一至实施例三制备的高强自流型防爆耐火浇注料通过添加不同粒径的棕刚玉混合物作为主料,使得制备的浇注料的耐压强度较高,同时加入金属铝粉不仅能防止浇注料抗氧化,同时金属铝粉与聚丙烯纤维复合使用增强浇注料的抗爆裂性能。而对比例中制备的浇注料仅加入同种粒径的棕刚玉,致密性能降低,加水量增加,耐压强度降低;相比实施例中金属铝粉和聚丙烯纤维复合作用,对比例中单独加入聚丙烯纤维导致制备的浇注料耐压强度和抗折强度降低。
以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关的工作人员完全可以在不偏离本发明的范围内,进行多样的变更以及修改。本项发明的技术范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。

Claims (10)

1.一种高强自流型防爆耐火浇注料,其特征在于:其包括以下质量百分数的组分:粒径为0-1mm的棕刚玉6%~15%,粒径为1-3mm的棕刚玉10%~20%,粒径为3-5mm的棕刚玉15%~30%,粒径为0-1mm的SiC颗粒5%~10%,SiO2微粉3%~5%,SiC细粉3%~7%,白刚玉粉8%~18%,α-Al2O3微粉3%~6%,纯铝酸钙水泥3%~8%。
2.如权利要求1所述的高强自流型防爆耐火浇注料,其特征在于:所述高强自流型防爆耐火浇注料还包括质量分数为0%~0.4%的三聚磷酸钠。
3.如权利要求1所述的高强自流型防爆耐火浇注料,其特征在于:所述高强自流型防爆耐火浇注料还包括质量分数为0%~0.6%的聚丙烯纤维。
4.如权利要求1所述的高强自流型防爆耐火浇注料,其特征在于:所述高强自流型防爆耐火浇注料还包括质量分数为0%~2%的金属铝粉。
5.如权利要求1所述的高强自流型防爆耐火浇注料,其特征在于:所述高强自流型防爆耐火浇注料还包括质量分数为0%~2%的有机硅流平剂。
6.如权利要求1所述的高强自流型防爆耐火浇注料,其特征在于:所述SiC细粉的粒度小于0.088mm。
7.如权利要求2所述的高强自流型防爆耐火浇注料,其特征在于:所述三聚磷酸钠的质量分数为0.1%-0.4%。
8.如权利要求3所述的高强自流型防爆耐火浇注料,其特征在于:所述聚丙烯纤维的质量分数为0.1%-0.6%。
9.如权利要求4所述的高强自流型防爆耐火浇注料,其特征在于:所述金属铝粉的质量分数为0.1%-2%。
10.如权利要求5所述的高强自流型防爆耐火浇注料,其特征在于:所述有机硅流平剂的质量分数为0.1%-2%。
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CN110407595A (zh) * 2019-08-29 2019-11-05 云南濮耐昆钢高温材料有限公司 一种复合防爆高强耐火浇注料
CN111116215A (zh) * 2020-01-10 2020-05-08 长兴南冶冶金材料有限公司 一种热风炉用高温陶瓷耐磨自流浇注料
CN112521136A (zh) * 2020-12-01 2021-03-19 北京金隅通达耐火技术有限公司 一种危废处置行业用浇注料
CN114163222A (zh) * 2021-12-01 2022-03-11 北京金隅通达耐火技术有限公司 一种水泥窑窑口用钛复合刚玉碳化硅耐磨浇注料及其制备方法
CN116063089A (zh) * 2023-01-18 2023-05-05 无锡市宜刚耐火材料有限公司 一种超薄型炉墙用可塑料及其制备方法

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