CN107021733A - 一种含钙十字沸石保温砖及其制备方法 - Google Patents

一种含钙十字沸石保温砖及其制备方法 Download PDF

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CN107021733A
CN107021733A CN201710389380.6A CN201710389380A CN107021733A CN 107021733 A CN107021733 A CN 107021733A CN 201710389380 A CN201710389380 A CN 201710389380A CN 107021733 A CN107021733 A CN 107021733A
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纪其维
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Mingguang City Taifeng New Materials Co Ltd
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Abstract

本发明公开了一种含钙十字沸石保温砖及其制备方法，属于保温砖领域，该保温砖包括以下按重量份数计的原料：铁矿尾渣60‑80份、钙十字沸石30‑50份、磷石膏25‑35份、玻璃纤维20‑30份、改性硅藻土15‑25份、加气铝粉10‑20份、双飞粉5‑15份、白乳胶10‑20份、硅钙渣8‑12份、减水剂1‑5份、憎水剂1‑5份、发泡剂1‑3份、稳泡剂1‑3份。其制备方法是将铁矿尾渣等原料进行球磨，得粉料，再将所有原料混合加水搅拌均匀，得浆料，最后通过对浆料的压制成型、自然养护、烘干、高温煅烧等处理，即可。本发明的保温砖生产成本低，具有良好的抗压强度、抗冻性、抗风化性，干密度小，实用耐久性强，绿色环保，具有广阔的市场前景。

Description

一种含钙十字沸石保温砖及其制备方法
技术领域
本发明涉及保温砖领域，尤其是涉及一种含钙十字沸石保温砖及其制备方法。
背景技术
随着国民经济的快速发展，人民生活水平的不断提高，对能源的消耗也越来越大，能源短缺问题日益突出，因此，节能环保型的建筑材料逐渐被人们所重视，保温砖作为建筑材料中的一种，应用广泛，通常下保温砖是一种使用高分子材料合成的一种新型建材，具有一定良好的防火阻燃、保温隔音、抗裂防水等性能，从而达到节能环保的效果，虽然这类保温砖相比普通烧结砖具有诸多如上的性能优势，但是，现如今的保温砖在原料成本上较高，且很多保温砖抗压强度低、抗冻性低、抗风化性差、干密度大，致使耐久性差，寿命短。因此，研制出一种能够解决上述性能问题的保温砖非常有必要。
发明内容
本发明的目的是针对现有技术的问题，提供一种含钙十字沸石保温砖及其制备方法，该种保温砖具有良好的抗压强度、抗冻性、抗风化性，干密度小，实用耐久性强。
为了达到上述目的，本发明通过以下技术方案来实现的：
一种含钙十字沸石保温砖，包括以下按重量份数计的原料：铁矿尾渣60-80份、钙十字沸石30-50份、磷石膏25-35份、玻璃纤维20-30份、改性硅藻土15-25份、加气铝粉10-20份、双飞粉5-15份、白乳胶10-20份、硅钙渣8-12份、减水剂1-5份、憎水剂1-5份、发泡剂1-3份、稳泡剂1-3份；
所述改性硅藻土由下列重量份的原料制成：硅藻土30份、钛白粉8份、锌钡白4份、木质素3份、膨胀珍珠岩10份、三氯化铁6份、正丁醛-苯胺缩合物3份、氧化镨3份、蜜蜡6份；其制备方法是将硅藻土置于5％-10％的盐酸溶液中浸泡40-60分钟，抽滤后将所得物料烘干，再与膨胀珍珠岩混合，在750-800℃下进行高温煅烧1-2小时，取出冷却到室温后再与蜜蜡混合，通过研磨机研磨成120-160目的细粉，最后与剩余材料混合，通过球磨使所有原料粉末充分分散混合均匀即可。
进一步地，上述保温砖包括以下按重量份数计的原料：铁矿尾渣70份、钙十字沸石40份、磷石膏30份、玻璃纤维25份、改性硅藻土20份、加气铝粉15份、双飞粉10份、白乳胶15份、硅钙渣10份、减水剂3份、憎水剂3份、发泡剂2份、稳泡剂2份。
优选地，所述减水剂为木质素磺酸钙、聚丙烯酸钠或氨基磺酸钠中的一种或者几种按任意配比的混合物。
优选地，所述憎水剂为有机硅乳液。
优选地，所述稳泡剂为硅树脂聚醚乳液、聚丙烯酰胺或聚乙烯醇中的一种或者几种按任意配比的混合物。
优选地，所述发泡剂为十二烷基硫酸钠、松香或苯磺酸钠中的一种或者几种按任意配比的混合物。
上述的一种含钙十字沸石保温砖的制备方法，按照以下步骤进行：
1)按照重量份配比称重配料，将铁矿尾渣、钙十字沸石、磷石膏和硅钙渣共同输送至干式球磨机内进行粉磨，磨至粒径≤2mm，得粉料；
2)将所有原料混合加入重量比为8-12％的水输送至搅拌机中混合搅拌处理，搅拌转速70-80r/min，搅拌时间为50-60min，得浆料；
3)将所述浆料倒入模具中，通过压力机进行压制成型；
4)将成型后的保温砖置于干燥室温的条件下自然养护2-4天；
5)将养护后的保温砖放置于高温烘干机内进行高温烘干处理，且烘干温度设定为75-85℃，烘干时间24-32h；
6)将烘干后的保温砖放置于高温煅烧炉中进行高温煅烧处理，即可，且高温煅烧的温度为1100-1300℃，高温煅烧时间为12-16h。
本发明具有如下的有益效果：
(1)本发明的保温砖原料来源广泛，成本低廉，变废为宝，符合国家倡导的绿色环保标准，适宜大规模生产施用，推动了节能环保型建筑材料的发展；
(2)本发明的保温砖以铁矿尾渣、钙十字沸石、磷石膏、玻璃纤维、改性硅藻土作为保温砖的主料，协同加入的减水剂、憎水剂、发泡剂、稳泡剂等特定外加剂，提高了成品保温砖的抗压强度、抗冻性、抗风化性，降低了自身干密度，实用耐久性增强，延长了保温砖的寿命。
具体实施方式
下面结合实施例对本发明的具体实施方式作进一步描述，以下实施例仅用于更加清楚地说明本发明的技术方案，而不能以此来限制本发明的保护范围。
实施例1
一种含钙十字沸石保温砖，预备以下原料：铁矿尾渣60kg、钙十字沸石30kg、磷石膏25kg、玻璃纤维20kg、改性硅藻土15kg、加气铝粉10kg、双飞粉5kg、白乳胶10kg、硅钙渣8kg、减水剂1kg、憎水剂1kg、发泡剂1kg、稳泡剂1kg；
所述改性硅藻土由下列原料制成：硅藻土30kg、钛白粉8kg、锌钡白4kg、木质素3kg、膨胀珍珠岩10kg、三氯化铁6kg、正丁醛-苯胺缩合物3kg、氧化镨3kg、蜜蜡6kg；其制备方法是将硅藻土置于5％的盐酸溶液中浸泡40分钟，抽滤后将所得物料烘干，再与膨胀珍珠岩混合，在750℃下进行高温煅烧1小时，取出冷却到室温后再与蜜蜡混合，通过研磨机研磨成120目的细粉，最后与剩余材料混合，通过球磨使所有原料粉末充分分散混合均匀即可。
其中，上述减水剂采用木质素磺酸钙；憎水剂采用有机硅乳液；稳泡剂采用硅树脂聚醚乳液；发泡剂采用十二烷基硫酸钠。
上述的一种含钙十字沸石保温砖的制备方法，按照以下步骤进行：
1)按照规定量称取原料，将铁矿尾渣、钙十字沸石、磷石膏和硅钙渣共同输送至干式球磨机内进行粉磨，磨至粒径≤2mm，得粉料；
2)将所有原料混合加入重量比为8％的水输送至搅拌机中混合搅拌处理，搅拌转速70r/min，搅拌时间为50min，得浆料；
3)将所述浆料倒入模具中，通过压力机进行压制成型；
4)将成型后的保温砖置于干燥室温的条件下自然养护2天；
5)将养护后的保温砖放置于高温烘干机内进行高温烘干处理，且烘干温度设定为75℃，烘干时间24h；
6)将烘干后的保温砖放置于高温煅烧炉中进行高温煅烧处理，即制得本发明的含钙十字沸石保温砖，且高温煅烧的温度为1100℃，高温煅烧时间为12h。
实施例2
一种含钙十字沸石保温砖，预备以下原料：铁矿尾渣70kg、钙十字沸石40kg、磷石膏30kg、玻璃纤维25kg、改性硅藻土20kg、加气铝粉15kg、双飞粉10kg、白乳胶15kg、硅钙渣10kg、减水剂3kg、憎水剂3kg、发泡剂2kg、稳泡剂2kg；
所述改性硅藻土由下列原料制成：硅藻土30kg、钛白粉8kg、锌钡白4kg、木质素3kg、膨胀珍珠岩10kg、三氯化铁6kg、正丁醛-苯胺缩合物3kg、氧化镨3kg、蜜蜡6kg；其制备方法是将硅藻土置于8％的盐酸溶液中浸泡50分钟，抽滤后将所得物料烘干，再与膨胀珍珠岩混合，在780℃下进行高温煅烧1.5小时，取出冷却到室温后再与蜜蜡混合，通过研磨机研磨成140目的细粉，最后与剩余材料混合，通过球磨使所有原料粉末充分分散混合均匀即可。
其中，上述减水剂采用木质素磺酸钙和聚丙烯酸钠两种混合物，且两者之间的质量比为1:1；憎水剂采用有机硅乳液；稳泡剂采用聚丙烯酰胺和聚乙烯醇两种混合物，且两者之间的质量比为1:2；发泡剂采用松香和苯磺酸钠两种混合物，且两者之间的质量比为1:1。
上述的一种含钙十字沸石保温砖的制备方法，按照以下步骤进行：
1)按照重量份配比称重配料，将铁矿尾渣、钙十字沸石、磷石膏和硅钙渣共同输送至干式球磨机内进行粉磨，磨至粒径≤2mm，得粉料；
2)将所有原料混合加入重量比为10％的水输送至搅拌机中混合搅拌处理，搅拌转速75r/min，搅拌时间为55min，得浆料；
3)将所述浆料倒入模具中，通过压力机进行压制成型；
4)将成型后的保温砖置于干燥室温的条件下自然养护3天；
5)将养护后的保温砖放置于高温烘干机内进行高温烘干处理，且烘干温度设定为80℃，烘干时间28h；
6)将烘干后的保温砖放置于高温煅烧炉中进行高温煅烧处理，即制得本发明的含钙十字沸石保温砖，且高温煅烧的温度为1200℃，高温煅烧时间为14h。
实施例3
一种含钙十字沸石保温砖，预备以下原料：铁矿尾渣80kg、钙十字沸石50kg、磷石膏35kg、玻璃纤维30kg、改性硅藻土25kg、加气铝粉20kg、双飞粉15kg、白乳胶20kg、硅钙渣12kg、减水剂5kg、憎水剂5kg、发泡剂3kg、稳泡剂3kg；
所述改性硅藻土由下列原料制成：硅藻土30kg、钛白粉8kg、锌钡白4kg、木质素3kg、膨胀珍珠岩10kg、三氯化铁6kg、正丁醛-苯胺缩合物3kg、氧化镨3kg、蜜蜡6kg；其制备方法是将硅藻土置于10％的盐酸溶液中浸泡60分钟，抽滤后将所得物料烘干，再与膨胀珍珠岩混合，在800℃下进行高温煅烧2小时，取出冷却到室温后再与蜜蜡混合，通过研磨机研磨成160目的细粉，最后与剩余材料混合，通过球磨使所有原料粉末充分分散混合均匀即可。
其中，上述减水剂采用木质素磺酸钙和氨基磺酸钠两种混合物，且两者之间的质量比为1:1；憎水剂采用有机硅乳液；稳泡剂采用聚丙烯酰胺；发泡剂采用苯磺酸钠。
上述的一种含钙十字沸石保温砖的制备方法，按照以下步骤进行：
1)按照重量份配比称重配料，将铁矿尾渣、钙十字沸石、磷石膏和硅钙渣共同输送至干式球磨机内进行粉磨，磨至粒径≤2mm，得粉料；
2)将所有原料混合加入重量比为12％的水输送至搅拌机中混合搅拌处理，搅拌转速80r/min，搅拌时间为60min，得浆料；
3)将所述浆料倒入模具中，通过压力机进行压制成型；
4)将成型后的保温砖置于干燥室温的条件下自然养护4天；
5)将养护后的保温砖放置于高温烘干机内进行高温烘干处理，且烘干温度设定为85℃，烘干时间32h；
6)将烘干后的保温砖放置于高温煅烧炉中进行高温煅烧处理，即制得本发明的含钙十字沸石保温砖，且高温煅烧的温度为1300℃，高温煅烧时间为16h。
性能检测
对本发明实施例1-3制得的保温板命名保温砖1、保温砖2、保温砖3，根据GB26538-2011保温砖性能指标进行抗压强度、干密度检测、抗风化性、抗冻性检测，检测数据见下表1。
表1
其中，抗压强度等级：MU15.0＞MU10.0＞MU7.5＞MU5.0＞MU3.5，等级越高，抗压强度越大；
密度等级：700＜800＜900＜1000，等级越高，密度越大；
抗风化性：饱和系数越大，抗风化性越强；
抗冻性：D15＜D25＜D35＜D50，等级越高，抗冻性越强。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管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)

1.一种含钙十字沸石保温砖，其特征在于，包括以下按重量份数计的原料：铁矿尾渣60-80份、钙十字沸石30-50份、磷石膏25-35份、玻璃纤维20-30份、改性硅藻土15-25份、加气铝粉10-20份、双飞粉5-15份、白乳胶10-20份、硅钙渣8-12份、减水剂1-5份、憎水剂1-5份、发泡剂1-3份、稳泡剂1-3份；
所述改性硅藻土由下列重量份的原料制成：硅藻土30份、钛白粉8份、锌钡白4份、木质素3份、膨胀珍珠岩10份、三氯化铁6份、正丁醛-苯胺缩合物3份、氧化镨3份、蜜蜡6份；其制备方法是将硅藻土置于5％-10％的盐酸溶液中浸泡40-60分钟，抽滤后将所得物料烘干，再与膨胀珍珠岩混合，在750-800℃下进行高温煅烧1-2小时，取出冷却到室温后再与蜜蜡混合，通过研磨机研磨成120-160目的细粉，最后与剩余材料混合，通过球磨使所有原料粉末充分分散混合均匀即可。
2.根据权利要求1所述的一种含钙十字沸石保温砖，其特征在于，包括以下按重量份数计的原料：铁矿尾渣70份、钙十字沸石40份、磷石膏30份、玻璃纤维25份、改性硅藻土20份、加气铝粉15份、双飞粉10份、白乳胶15份、硅钙渣10份、减水剂3份、憎水剂3份、发泡剂2份、稳泡剂2份。
3.根据权利要求1任意所述的一种含钙十字沸石保温砖，其特征在于，所述减水剂为木质素磺酸钙、聚丙烯酸钠或氨基磺酸钠中的一种或者几种按任意配比的混合物。
4.根据权利要求1所述的一种含钙十字沸石保温砖，其特征在于，所述憎水剂为有机硅乳液。
5.根据权利要求1所述的一种含钙十字沸石保温砖，其特征在于，所述稳泡剂为硅树脂聚醚乳液、聚丙烯酰胺或聚乙烯醇中的一种或者几种按任意配比的混合物。
6.根据权利要求1所述的一种含钙十字沸石保温砖，其特征在于，所述发泡剂为十二烷基硫酸钠、松香或苯磺酸钠中的一种或者几种按任意配比的混合物。
7.一种如权利要求1-6任意一项所述的含钙十字沸石保温砖的制备方法，其特征在于，包括以下步骤：
1)按照重量份配比称重配料，将铁矿尾渣、钙十字沸石、磷石膏和硅钙渣共同输送至干式球磨机内进行粉磨，磨至粒径≤2mm，得粉料；
2)将所有原料混合加入重量比为8-12％的水输送至搅拌机中混合搅拌处理，搅拌转速70-80r/min，搅拌时间为50-60min，得浆料；
3)将所述浆料倒入模具中，通过压力机进行压制成型；
4)将成型后的保温砖置于干燥室温的条件下自然养护2-4天；
5)将养护后的保温砖放置于高温烘干机内进行高温烘干处理，且烘干温度设定为75-85℃，烘干时间24-32h；
6)将烘干后的保温砖放置于高温煅烧炉中进行高温煅烧处理，即可。
8.根据权利要求7所述的一种含钙十字沸石保温砖的制备方法，其特征在于，所述步骤6)中高温煅烧的温度为1100-1300℃，高温煅烧时间为12-16h。
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