CN116143505A - 一种应用于硅藻土隔热保温砖的新材料 - Google Patents

一种应用于硅藻土隔热保温砖的新材料 Download PDF

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CN116143505A
CN116143505A CN202111391537.1A CN202111391537A CN116143505A CN 116143505 A CN116143505 A CN 116143505A CN 202111391537 A CN202111391537 A CN 202111391537A CN 116143505 A CN116143505 A CN 116143505A
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陈泽明
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Abstract

本发明公开了一种新硅藻土隔热砖的新材料，是一种硅酸盐无机材料，由70％～85％的硅藻土和30％～15％的膨胀珍珠岩很合烧结构成，主要成分为：SiO2、Al2O3、Fe2O3、CaO、MgO、和微量元素，其中SiO2的比例为60％～75％，Al2O3的比例为20％～12％，Fe2O3的比例为2.0％～1.8％，CaO的比例为0.3％～0.1％，MgO的比例为0.4％～0.2％，微量元素的比例为17.3％～10.9％，本发明是通过用硅藻土、膨胀珍珠岩等材料按一定比例配合来制成一种强度高、密度小、导热系数低的新型硅藻土隔热保温砖。

Description

一种应用于硅藻土隔热保温砖的新材料
技术领域
本发明涉及材料类技术领域，尤其是一种应用于硅藻土隔热保温砖的新材料。
背景技术
硅藻土隔热保温砖是工业窑炉、建筑等领域的隔热保温材料，起到隔热、保温的作用，有很大的市场应用需求量。
目前传统的生产为硅藻土里掺和木屑用双轴搅拌机拌和再经过对辊机粉碎后用挤泥机挤出，然后放在露天晒场中把砖坯晒干后放入倒焰窑中烧制好，烧成后的砖再经过磨砖机打磨成产品。这种常规采用的原材料配方相对应的传统生产方式存在的弊端为:①生产周期长，春秋季要2～3个月，冬季需停产；②产量低，看天吃饭；③硅藻土和木屑的体积比为1:1，大量的木屑再燃烧时产生大量烟气污染环境，并且在切割和磨砖时产生大量粉尘，直接对环境保护造成相应的影响；④这种工艺生产的产品容易变形，外观差，常温耐压强度小于2MPa低于国标，密度不统一，0.7g/cm3的会做到1.0g/cm3；⑤烧成时由于是凭经验掌握，温差很大，人为的随机性高，产品成品率低。
发明内容
本发明的目的在于克服上述现有的生产方式的不足之处，提高生产效率，提高产品质量。
本发明公开了一种应用于硅藻土隔热保温砖的新材料，是一种硅酸盐无机材料，由70％～85％的硅藻土和30％～15％的膨胀珍珠岩很合烧结构成，主要成分为：SiO2、Al2O3、Fe2O3、CaO、MgO、和微量元素，其中SiO2的比例为60％～75％，Al2O3的比例为12％～20％，Fe2O3的比例为1.8％～2.0％，CaO的比例为0.1％～0.3％，MgO的比例为0.2％～0.4％，本发明通过对原工艺中的木屑调整为膨胀珍珠岩再经过化学成分的比例调整，再保证降低导热系数的前提下还能提高砖的强度，并且砖的外观得到彻底改观，表面光洁平整。
为达到上述目的，本发明的技术方案是：一种应用于硅藻土隔热保温砖的新材料，为一种硅酸盐无机材料，由70％～85％的硅藻土和30％～15％的膨胀珍珠岩很合烧结构成；
主要成分为：SiO2、Al2O3、Fe2O3、CaO、MgO和微量元素，其中SiO2的比例为60％～75％，Al2O3的比例为20％～12％，Fe2O3的比例为2.0％～1.8％，CaO的比例为0.3％～0.1％，MgO的比例为0.4％～0.2％，微量元素的比例为17.3％～10.9％。
进一步设置，原所述硅藻土为嵊州当地产原矿。
进一步设置，新型硅藻土隔热砖可以做成包括但不限于密度为0.5g/cm3、0.6g/cm3、0.7g/cm3、0.8g/cm3密度的砖。
本发明的有益效果是：本发明通过对原工艺中的木屑调整为膨胀珍珠岩再经过化学成分的比例调整，再保证降低导热系数的前提下还能提高砖的强度，并且砖的外观得到彻底改观，表面光洁平整。
附图说明
图1为本发明的流程图。
具体实施方式
下面通过实施例，并结合附图，对本发明的技术方案作进一步具体的说明。
如图1所示，一种新硅藻土隔热砖的新材料，是一种硅酸盐无机材料，由70％～85％的硅藻土和30％～15％的膨胀珍珠岩很合烧结构成，经过高温烧结后，各成分能充分的粘合并硬化，性能稳定、隔热性能好、导热系数低。
新硅藻土隔热砖的新材料主要成分为：SiO2、Al2O3、Fe2O3、CaO、MgO和微量元素，其中SiO2的比例为60％～75％，Al2O3的比例为20％～12％，Fe2O3的比例为2.0％～1.8％，CaO的比例为0.3％～0.1％，MgO的比例为0.4％～0.2％，微量元素的比例为17.3％～10.9％；新材料的主要成分是SiO2，对活性组分起稳定作用，且随含量增加而加强，新材料中的其它成分按设定比例添加并组合后，氧化物杂质含量降低，SiO2含量增高，比表面积和孔容也增大，应用新配方的新材料的硅藻土通过机压后产生的隔热砖效果比天然硅藻土更好。
本发明通过对传统工艺生成的硅藻土中的木屑调整为膨胀珍珠岩再经过化学成分的比例调整，再保证降低导热系数的前提下还能提高砖的强度，并且砖的外观得到彻底改观，表面光洁平整。
新材料的物理性能：
1.密度≤0.6g/cm3，常温耐压强度≥1.5MPa，重烧线变化(900℃×8h)≤1％，导热系数(300℃)≤0.12W/m.k。
2.密度≤0.7g/cm3，常温耐压强度≥2.5MPa，重烧线变化(900℃×8h)≤1％，导热系数(300℃)≤0.15W/m.k。
3.密度≤0.8g/cm3，常温耐压强度≥2.8MPa，重烧线变化(900℃×8h)≤1％，导热系数(300℃)≤0.16W/m.k。
本技术方案中，把原材料中的木屑置换成膨胀珍珠岩，并且化学成分的比例调整使新材料具有更优异的物理性能，并且减少碳排放更加环保，在制作过程中也有原始的挤泥方式调整为机压方式，大大提高了生产效率，并使新材料的导热系数进一步降低，保温性能更加优异。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的权利保护范围之内。

Claims (3)

1.一种应用于硅藻土隔热保温砖的新材料，为一种硅酸盐无机材料，其特征在于：由70％～85％的硅藻土和30％～15％的膨胀珍珠岩很合烧结构成；
主要成分为：SiO2、Al2O3、Fe2O3、CaO、MgO和微量元素，其中SiO2的比例为60％～75％，Al2O3的比例为20％～12％，Fe2O3的比例为2.0％～1.8％，CaO的比例为0.3％～0.1％，MgO的比例为0.4％～0.2％，微量元素的比例为17.3％～10.9％。
2.如权利要求1一种应用于硅藻土隔热保温砖的新材料，其特征在于：原所述硅藻土为当地产原矿。
3.如权利要求1一种应用于硅藻土隔热保温砖的新材料，其特征在于：新型硅藻土隔热砖可以做成包括但不限于密度为0.5g/cm3、0.6g/cm3、0.7g/cm3、0.8g/cm3密度的砖。
CN202111391537.1A 2021-11-23 2021-11-23 一种应用于硅藻土隔热保温砖的新材料 Pending CN116143505A (zh)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793042A (en) * 1970-12-24 1974-02-19 Combustion Eng Insulating monolithic refractory
CN108367259A (zh) * 2015-10-23 2018-08-03 Ep矿产有限公司 蛋白石的助熔煅烧的硅藻土产品
CN110372412A (zh) * 2019-08-28 2019-10-25 邱连旺 一种硅藻土功能材料及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793042A (en) * 1970-12-24 1974-02-19 Combustion Eng Insulating monolithic refractory
CN108367259A (zh) * 2015-10-23 2018-08-03 Ep矿产有限公司 蛋白石的助熔煅烧的硅藻土产品
CN110372412A (zh) * 2019-08-28 2019-10-25 邱连旺 一种硅藻土功能材料及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
中华人民共和国公安部消防局: "中国消防手册 第12卷 消防装备·消防产品", 上海科学技术出版社, pages: 732 *

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