CN107056308A - 一种保温砖及其制备方法 - Google Patents

一种保温砖及其制备方法 Download PDF

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CN107056308A
CN107056308A CN201710219827.5A CN201710219827A CN107056308A CN 107056308 A CN107056308 A CN 107056308A CN 201710219827 A CN201710219827 A CN 201710219827A CN 107056308 A CN107056308 A CN 107056308A
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曹智远
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Hefei Oukesi New Building Material Co Ltd
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Abstract

本发明公开了一种保温砖及其制备方法,涉及保温砖技术领域,包括以下重量份的原料:包膜膨胀珍珠岩60~80份、秸秆包覆颗粒40~60份、水泥20~30份、助烧剂2~10份、高温粘结剂2~6份、氢氧化镁2~6份和水100~120份。制备方法包括:(1)、制备包膜膨胀珍珠岩;(2)、制备秸秆包覆颗粒;(3)、原料混合;(4)、压制成型;(5)、养护;(6)、高温煅烧。本发明不仅具有良好的保温性能,而且质轻、强度大和耐水性好,另外,本发明制备方法简单,易操作,原料来源广泛,成本低廉,节约能源,具有良好的社会效益和经济效益。

Description

一种保温砖及其制备方法
技术领域
[0001] 本发明涉及保温砖技术领域,具体涉及一种保温砖及其制备方法。
背景技术
[0002] 建筑外墙使用保温材料时,多使用苯板、挤塑板或聚氨酯发泡等保温材料,虽然这 些材料保温隔热效果比较好,但是它们的防火性能差,存在安全隐患;同时,在用到高层建 筑物时,抗风压性较低;聚氨酯在使用时用聚氨酯发泡剂发泡,聚氨酯发泡剂在发泡过程中 会产生有毒气体,而且在做隔热材料后不能完全排除,所以环保系数大大降低,而且成本也 很高。虽然胶粉聚苯颗粒正逐渐被广泛使用,该保温材料现场施工,因材料为固体颗粒,便 于运输,在使用过程中使用方法简单,具有防火性能优良,成本较低等优势特点,但是其材 料保温性能差,保温层外层需要涂抹防裂材料,且保温层涂抹后需固化干燥后方可进行防 裂处理,这就需要较长的干燥时间,因此施工周期长。
发明内容
[0003] 本发明的目的是提供一种保温砖及其制备方法,不仅具有良好的保温性能,而且 质轻、强度大和耐水性好,另外,本发明制备方法简单,易操作,原料来源广泛,成本低廉,节 约能源,具有良好的社会效益和经济效益。
[0004] 本发明提供了如下的技术方案:一种保温砖,包括以下重量份的原料:包膜膨胀珍 珠岩60~80份、秸杆包覆颗粒40~60份、水泥20~30份、助烧剂2〜10份、高温粘结剂2〜6份、氢氧 化镁2~6份和水ΠΚΚ120份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩30~40份、碳酸钙10~20份和环氧 树脂粉料2~8份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 I 〇〜20份、植物秸杆粉10~ 15份、水玻 璃2〜10份、羧甲基纤维素2〜10份、粘土2〜8份和改性海泡石2〜6份。
[0005] 优选地,包括以下重量份的原料:包膜膨胀珍珠岩70份、秸杆包覆颗粒50份、水泥 25份、助烧剂6份、高温粘结剂4份、氢氧化镁4份和水110份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩35份、碳酸钙15份和环氧树脂粉 料5份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 15份、植物秸杆粉12.5份、水玻璃6 份、羧甲基纤维素6份、粘土 5份和改性海泡石4份。
[0006] 优选地,所述水泥为普通娃酸盐水泥、高铝水泥、粉煤灰水泥、巩土水泥和铝酸盐 水泥中的任一种。
[0007] 优选地,所述助烧剂为TiO2微粉、MgO微粉、Cr2O3微粉、MgF2微粉和AlF3微粉中的任 一种。
[0008] 优选地,所述高温粘结剂为氢氧化铝或者硅熔胶。
[0009] 优选地,所述植物秸杆粉的制备方法为:将植物秸杆放入粉碎机粉碎,纤维长度控 制为5〜I Omm,干燥至含水率为5~8%,得到植物秸杆粉。
[0010] 优选地,所述改性海泡石的制备方法为:将海泡石置于300〜500°C窑炉中焙烧1〜 4h,粉碎研磨成100~180目粉末,研细后即得改性海泡石。
[0011] 本发明中还提供一种保温砖的制备方法,包括以下步骤: (1) 、制备包膜膨胀珍珠岩 称取珍珠岩,粉碎过130~140目筛,放入煅烧炉,在500~600°C下高温煅烧1〜2h后得到珍 珠岩粉末取出,自然冷却后加入到包衣机中加热至150~180°C,并加入碳酸钙粉末,搅拌均 匀,然后包衣机一端喷洒蒸馏水将珍珠岩粉末浸湿,一端喷洒环氧树脂粉料,并不断搅拌40 〜50min,即得到所述包膜膨胀珍珠岩; (2) 、制备猜杆包覆颗粒 将硅藻土和改性海泡石干燥后与羧甲基纤维素加入高速混合机中,在110~120°C下以 500〜800rpm的速度搅拌混合20~30min,再加入水玻璃继续搅拌10~15min后,然后加入植物 猜杆粉、粘土以1000〜1500rpm的速度共混5〜IOmin,烘干后送入造粒机中造粒,粒径控制在2 ~4mm,即得猜杆包覆颗粒; (3) 、原料混合 称取剩余原料与步骤(1)得到的包膜膨胀珍珠岩和步骤(2)得到的秸杆包覆颗粒混合 均匀; (4) 、压制成型 采用压力机对步骤(3)混合后的原料压制成型,压制时间为5〜10秒,得到半成品; (5) 、养护 将步骤(4)压制后的半成品在常温下进行养护处理,养护时间为1〜3天; (6) 、高温煅烧 将步骤(5)养护后的半成品进行高温煅烧处理,煅烧温度为800〜1200Γ,高温煅烧时 间为10~20h,煅烧后得到所述保温砖。
[0012] 本发明的有益效果:不仅具有良好的保温性能,而且质轻、强度大和耐水性好,另 夕卜,本发明制备方法简单,易操作,原料来源广泛,成本低廉,节约能源,具有良好的社会效 益和经济效益,具体如下: (1) 、本发明中珍珠岩通过碳酸钙以及环氧树脂粉料进行包膜处理,不仅能够降低珍珠 岩的吸水率,而且还能够增强整体强度,充分利用珍珠岩理化性能稳定、耐老化耐候性强等 优点,制备出的保温砖吸水率低、抗压强度和保温性能高; (2) 、本发明中添加植物秸杆粉,一方面,用于制备秸杆包覆颗粒,提高了保温砖的保温 效果和强度,很好地解决强度和保温性能不能兼得的矛盾,另一方面,增加本发明保温砖的 孔隙率,在焙烧过程中形成大量的微孔;另外,可以利用廉价的、资源量丰富的植物秸杆,同 时解决了农村燃烧秸杆所带来的环境污染问题,达到了即绿色环保、综合利用的效果; (3) 、本发明中添加氢氧化镁,提高了整体的耐火性; (4) 、本发明中添加改性海泡石,改性后的海泡石可以提高其对有害气体、重金属等有 害物质的吸附性。
具体实施方式
[0013]下面结合具体实施例,进一步阐述本发明。这些实施例仅用于说明本发明而不用 于限制本发明的范围。
[0014] 实施例1 一种保温砖,包括以下重量份的原料: 包膜膨胀珍珠岩 60份; 猜杆包覆颗粒 40份; 水泥 20份; 助烧剂 2份; 高温粘结剂 2份; 氢氧化镁 2份; 水 100份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩30份、碳酸钙10份和环氧树脂粉 料2份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 10份、植物秸杆粉10份、水玻璃2份、 羧甲基纤维素2份、粘土 2份和改性海泡石2份。
[0015] 其中,所述水泥为普通硅酸盐水泥,所述助烧剂为TiO2微粉,所述高温粘结剂为氢 氧化铝。
[0016] 其中,所述植物秸杆粉的制备方法为:将植物秸杆放入粉碎机粉碎,纤维长度控制 为5_,干燥至含水率为5%,得到植物秸杆粉。
[0017] 优选地,所述改性海泡石的制备方法为:将海泡石置于300°C窑炉中焙烧Ih,粉碎 研磨成100目粉末,研细后即得改性海泡石。
[0018] 本实施例中还提供一种保温砖的制备方法,包括以下步骤: (1) 、制备包膜膨胀珍珠岩 称取珍珠岩,粉碎过130目筛,放入煅烧炉,在500°C下高温煅烧Ih后得到珍珠岩粉末取 出,自然冷却后加入到包衣机中加热至150°C,并加入碳酸钙粉末,搅拌均匀,然后包衣机一 端喷洒蒸馏水将珍珠岩粉末浸湿,一端喷洒环氧树脂粉料,并不断搅拌40min,即得到所述 包膜膨胀珍珠岩; (2) 、制备猜杆包覆颗粒 将硅藻土和改性海泡石干燥后与羧甲基纤维素加入高速混合机中,在IHTC下以 500rpm的速度搅拌混合20min,再加入水玻璃继续搅拌IOmin后,然后加入植物猜杆粉、粘土 以IOOOrpm的速度共混5min,烘干后送入造粒机中造粒,粒径控制在2mm,即得猜杆包覆颗 粒; (3) 、原料混合 称取剩余原料与步骤(1)得到的包膜膨胀珍珠岩和步骤(2)得到的秸杆包覆颗粒混合 均匀; (4) 、压制成型 采用压力机对步骤(3)混合后的原料压制成型,压制时间为5秒,得到半成品; (5) 、养护 将步骤(4)压制后的半成品在常温下进行养护处理,养护时间为1天; (6)、高温煅烧 将步骤(5)养护后的半成品进行高温煅烧处理,煅烧温度为800°C,高温煅烧时间为 I Oh,煅烧后得到所述保温砖。
[0019] 实施例2 一种保温砖,包括以下重量份的原料: 包膜膨胀珍珠岩 80份; 猜杆包覆颗粒 60份; 水泥 30份; 助烧剂 10份; 高温粘结剂 6份; 氢氧化镁 6份; 水 120份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩40份、碳酸钙20份和环氧树脂粉 料8份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 20份、植物秸杆粉15份、水玻璃10 份、羧甲基纤维素10份、粘土 8份和改性海泡石6份。
[0020] 其中,所述水泥为高铝水泥,所述助烧剂为MgO微粉,所述高温粘结剂为硅熔胶。
[0021] 其中,所述植物秸杆粉的制备方法为:将植物秸杆放入粉碎机粉碎,纤维长度控制 为I Omm,干燥至含水率为8%,得到植物秸杆粉。
[0022] 其中,所述改性海泡石的制备方法为:将海泡石置于500°C窑炉中焙烧4h,粉碎研 磨成180目粉末,研细后即得改性海泡石。
[0023] 本发明中还提供一种保温砖的制备方法,包括以下步骤: (1) 、制备包膜膨胀珍珠岩 称取珍珠岩,粉碎过140目筛,放入煅烧炉,在600°C下高温煅烧2h后得到珍珠岩粉末取 出,自然冷却后加入到包衣机中加热至180°C,并加入碳酸钙粉末,搅拌均匀,然后包衣机一 端喷洒蒸馏水将珍珠岩粉末浸湿,一端喷洒环氧树脂粉料,并不断搅拌50min,即得到所述 包膜膨胀珍珠岩; (2) 、制备猜杆包覆颗粒 将硅藻土和改性海泡石干燥后与羧甲基纤维素加入高速混合机中,在120°C下以 800rpm的速度搅拌混合30min,再加入水玻璃继续搅拌15min后,然后加入植物猜杆粉、粘土 以1500rpm的速度共混IOmin,烘干后送入造粒机中造粒,粒径控制在4mm,即得猜杆包覆颗 粒; (3) 、原料混合 称取剩余原料与步骤(1)得到的包膜膨胀珍珠岩和步骤(2)得到的秸杆包覆颗粒混合 均匀; (4) 、压制成型 采用压力机对步骤(3)混合后的原料压制成型,压制时间为10秒,得到半成品; (5) 、养护 将步骤(4)压制后的半成品在常温下进行养护处理,养护时间为3天; (6)、高温煅烧 将步骤(5)养护后的半成品进行高温煅烧处理,煅烧温度为1200Γ,高温煅烧时间为 20h,煅烧后得到所述保温砖。
[0024] 实施例3 一种保温砖,包括以下重量份的原料: 包膜膨胀珍珠岩 70份; 猜杆包覆颗粒 50份; 水泥 25份; 助烧剂 6份; 高温粘结剂 4份; 氢氧化镁 4份; 水 110份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩35份、碳酸钙15份和环氧树脂粉 料5份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 15份、植物秸杆粉12.5份、水玻璃6 份、羧甲基纤维素6份、粘土 5份和改性海泡石4份。
[0025] 其中,所述水泥为粉煤灰水泥,所述助烧剂为Cr2O3微粉,高温粘结剂为氢氧化铝。
[0026] 其中,所述植物秸杆粉的制备方法为:将植物秸杆放入粉碎机粉碎,纤维长度控制 为7_,干燥至含水率为6%,得到植物秸杆粉。
[0027] 优选地,所述改性海泡石的制备方法为:将海泡石置于400°C窑炉中焙烧2.5h,粉 碎研磨成140目粉末,研细后即得改性海泡石。
[0028] 本实施例中还提供一种保温砖的制备方法,包括以下步骤: (1) 、制备包膜膨胀珍珠岩 称取珍珠岩,粉碎过135目筛,放入煅烧炉,在550°C下高温煅烧1.5h后得到珍珠岩粉末 取出,自然冷却后加入到包衣机中加热至165°C,并加入碳酸钙粉末,搅拌均匀,然后包衣机 一端喷洒蒸馏水将珍珠岩粉末浸湿,一端喷洒环氧树脂粉料,并不断搅拌45min,即得到所 述包膜膨胀珍珠岩; (2) 、制备猜杆包覆颗粒 将硅藻土和改性海泡石干燥后与羧甲基纤维素加入高速混合机中,在115°C下以 650rpm的速度搅拌混合25min,再加入水玻璃继续搅拌12min后,然后加入植物猜杆粉、粘土 以1250rpm的速度共混7min,烘干后送入造粒机中造粒,粒径控制在3mm,即得猜杆包覆颗 粒; (3) 、原料混合 称取剩余原料与步骤(1)得到的包膜膨胀珍珠岩和步骤(2)得到的秸杆包覆颗粒混合 均匀; (4) 、压制成型 采用压力机对步骤(3)混合后的原料压制成型,压制时间为7秒,得到半成品; (5) 、养护 将步骤(4)压制后的半成品在常温下进行养护处理,养护时间为2天; (6)、高温煅烧 将步骤(5)养护后的半成品进行高温煅烧处理,煅烧温度为IOOOtC,高温煅烧时间为 15h,煅烧后得到所述保温砖。
[0029] 实施例4 对实施例1~3值得的保温砖进行性能测试,结果如下表一: 表一
Figure CN107056308AD00091
参照前述实施例对本发明进行了详细的说明,对于本领域的技术人员来说,其依然可-以对前述各实施例所记载的技术方案进行修改,或者对其中部分技术特征进行等同替换。 凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的 保护范围之内。

Claims (8)

1. 一种保温砖,其特征在于,包括以下重量份的原料:包膜膨胀珍珠岩60〜80份、秸杆包 覆颗粒40〜60份、水泥20〜30份、助烧剂2〜10份、高温粘结剂2〜6份、氢氧化镁2〜6份和水100〜 120 份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩30〜40份、碳酸钙10〜20份和环氧 树脂粉料2〜8份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 I 〇〜20份、植物秸杆粉10〜15份、水玻 璃2〜10份、羧甲基纤维素2〜10份、粘土2〜8份和改性海泡石2〜6份。
2. 根据权利要求1所述的保温砖,其特征在于,包括以下重量份的原料:包膜膨胀珍珠 岩70份、秸杆包覆颗粒50份、水泥25份、助烧剂6份、高温粘结剂4份、氢氧化镁4份和水110 份; 所述包膜膨胀珍珠岩包括以下重量份的原料:珍珠岩35份、碳酸钙15份和环氧树脂粉 料5份; 所述秸杆包覆颗粒包括以下重量份的原料:硅藻土 15份、植物秸杆粉12.5份、水玻璃6 份、羧甲基纤维素6份、粘土 5份和改性海泡石4份。
3. 根据权利要求1所述的保温砖,其特征在于,所述水泥为普通硅酸盐水泥、高铝水泥、 粉煤灰水泥、巩土水泥和铝酸盐水泥中的任一种。
4. 根据权利要求1所述的保温砖,其特征在于,所述助烧剂为TiO2微粉、MgO微粉、Cr2O3 微粉、MgF2微粉和AlF3微粉中的任一种。
5. 根据权利要求1所述的保温砖,其特征在于,所述高温粘结剂为氢氧化铝或者硅熔 胶。
6. 根据权利要求1所述的保温砖,其特征在于,所述植物秸杆粉的制备方法为:将植物 秸杆放入粉碎机粉碎,纤维长度控制为5〜10_,干燥至含水率为5〜8%,得到植物秸杆粉。
7. 根据权利要求1所述的保温砖,其特征在于,所述改性海泡石的制备方法为:将海泡 石置于300〜500°C窑炉中焙烧1〜4h,粉碎研磨成100〜180目粉末,研细后即得改性海泡石。
8. —种根据权利要求1〜7任一项所述的保温砖的制备方法,其特征在于,包括以下步 骤: (1) 、制备包膜膨胀珍珠岩 称取珍珠岩,粉碎过130〜140目筛,放入煅烧炉,在500〜600°C下高温煅烧1〜2h后得到珍 珠岩粉末取出,自然冷却后加入到包衣机中加热至150〜180°C,并加入碳酸钙粉末,搅拌均 匀,然后包衣机一端喷洒蒸馏水将珍珠岩粉末浸湿,一端喷洒环氧树脂粉料,并不断搅拌40 〜50min,即得到所述包膜膨胀珍珠岩; (2) 、制备猜杆包覆颗粒 将硅藻土和改性海泡石干燥后与羧甲基纤维素加入高速混合机中,在110〜120°C下以 500〜800rpm的速度搅拌混合20〜30min,再加入水玻璃继续搅拌10〜15min后,然后加入植物 猜杆粉、粘土以1000〜1500rpm的速度共混5〜IOmin,烘干后送入造粒机中造粒,粒径控制在2 〜4mm,即得猜杆包覆颗粒; (3) 、原料混合 称取剩余原料与步骤(1)得到的包膜膨胀珍珠岩和步骤(2)得到的秸杆包覆颗粒混合 均匀; (4) 、压制成型 采用压力机对步骤(3)混合后的原料压制成型,压制时间为5〜10秒,得到半成品; (5) 、养护 将步骤(4)压制后的半成品在常温下进行养护处理,养护时间为1〜3天; (6) 、高温煅烧 将步骤(5)养护后的半成品进行高温煅烧处理,煅烧温度为800〜1200°C,高温煅烧时 间为10〜20h,煅烧后得到所述保温砖。
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CN108033806A (zh) * 2017-12-18 2018-05-15 郭舒洋 一种膨胀珍珠岩保温砖的制备方法
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CN108774075A (zh) * 2018-08-27 2018-11-09 湖州德海新型建材有限公司 一种不易破损的保温砖及制作方法

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