CN106588099A - 一种环保透水砖的制作方法 - Google Patents

一种环保透水砖的制作方法 Download PDF

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CN106588099A
CN106588099A CN201610977625.2A CN201610977625A CN106588099A CN 106588099 A CN106588099 A CN 106588099A CN 201610977625 A CN201610977625 A CN 201610977625A CN 106588099 A CN106588099 A CN 106588099A
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朱国军
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Abstract

本发明公开了一种环保透水砖的制作方法，采用污水厂污泥作为主要成分，能够解决污泥难以处理的问题，达到节能环保的要求；本发明在处理污水厂污泥时，采用二次烧结工艺，首先对一半量的污泥进行烧结，再将另一半以细粉的形态分别添加到砖坯的制备中，通过再次烧结，可以形成层层通孔的结构，有利于提高砖体的孔隙率，从而可以提高透水率。本发明还添加粉煤灰作为细骨料，普通河砂作为粗骨料，粉煤灰的多孔结构与普通河砂混合，提高了砖体的强度，通过烧结得到的砖体具有抗压强度高、透水快、吸收噪音等优异性能，同时采用的原料成本低廉，安全环保，是一种生态型地砖。

Description

一种环保透水砖的制作方法
技术领域
本发明涉及一种环保透水砖的制作方法。
背景技术
海绵城市是指城市能够像海绵一样，在适应环境变化和应对自然灾害等方面具有良好的“弹性”，下雨时吸水、蓄水、渗水、净水，需要时将蓄存的水释放并加以利用。在海绵城市建设过程中，应统筹自然降水、地表水和地下水的系统性，协调给水、排水等水循环利用各环节，并考虑其复杂性和长期性。众所周知，现有的城镇街道路面大都采用水泥混凝土、柏油、石材、陶瓷砖等不透水的材质铺设而成，这种硬化路面已经不适应建设海绵城市路面的趋势。
透水砖具有良好的透水性及保湿性能，能很好地缓解城市由于硬化路面所带来的“城市荒漠化”及“热岛效应”问题，有利于保持城市水平衡；自然降水能够迅速被透水砖吸收，并透过地表渗入地下，适时补充地下水位；透水砖能消除或减少地面积水，在产生防洪效益的同时，众多城市污染物不通过流水迁移而造成更大面积的环境污染；降雨结束后，透水砖中的水分又逐渐释放到空气中，调节地表温度和湿度，减轻城市“热岛效应”，维护地表生态平衡 ；同时透水砖具有吸音和防滑功能，可改善行走的安全性与舒适性，吸收车辆行驶所产生的噪音，创造安静舒适的交通环境。透水地砖可广泛用于住宅、庭院、公园、广场、人行道及轻量交通公路等路面的铺设，能产生良好的社会、环境和生态效应。
长期以来，污水厂的污泥处理一直是一个环保问题。污泥填埋不能从根本上解决污泥对环境的污染问题，而污泥的再生回收利用的成本很高，因此污泥的资源化利用被认为是最经济合理的处置方式。污水厂污泥除含有少量的有机成分外，大部分二氧化硅、三氧化二铝、氧化铁等无机成分跟粘土成分相似，粘结性较好，因而可以制作砖、水泥熟料、陶粒等建筑材料的原料。长期以来，粘土砖一直作为建筑行业用量最大最重要的墙体材料，每年不仅会毁坏大量土地农田，而且破坏了生态环境，所以将此制成建筑原料，是一种经济合理的处理方法。
发明内容
为了解决现有技术中存在的上述技术问题，本发明提供了一种环保透水砖的制作方法。
为了达到上述目的，本发明采取了以下技术方案：
一种环保透水砖的制作方法，其特征在于，由下列重量份的原料制备制成：污水厂污泥40-43份、稻壳 6-7份、钾长石粉4-5份、粉煤灰10-12份、水玻璃10-12份、碳酸钠1.5-2份、普通河砂30-33份、纳米氧化锌3-4份、纳米二氧化钛4-5份、水适量；首先将污水厂污泥自然干燥，粉碎处理过200目筛，得到污泥粉待用；将一半量的污泥粉、稻壳、钾长石粉混合，加入适量的水，放入搅拌机中以120转/分的速度搅拌成泥料，控制含水量为20%，然后送入造粒机中挤出造粒得到污泥颗粒，控制颗粒粒度为10目；将污泥颗粒放入干燥箱中，以100℃的温度干燥后送入电阻炉中进行烧结，升温至800℃，保温60分钟，然后继续升温至1100℃，保温60分钟，得到多孔污泥颗粒；将粉煤灰送入球磨机中干磨60分钟，过400目筛待用；将水玻璃溶于5倍量的水中，搅拌形成溶液，加入粉煤灰、纳米氧化锌、纳米二氧化钛，以600转/分的速度搅拌30分钟后超声分散40分钟，然后喷雾干燥，形成混合粉，再与余量的污泥粉混合均匀，形成混合 细骨料待用；将普通河砂、多孔污泥颗粒混合形成混合粗骨料待用；将上述混合粗骨料与混合细骨料以及其余剩余成分混合，加入适量的水拌和均匀， 控制含水量15%，使得混合细骨料均匀地包裹在混合粗骨料表面，形成坯料，然后将坯料放入干压成型机干压成型，控制压力为30MPa，再将制好的坯体置于恒温干燥箱中在105℃的温度下干燥8小时，最后送入电阻炉中烧结，先迅速升温至500℃，然后以4℃/min的速度升温至600℃，再继续升温至1150℃，总烧成时间控制为300分钟，冷却后取出即得。
本发明的有益效果是：本发明采用污水厂污泥作为主要成分，能够解决污泥难以处理的问题，达到节能环保的要求；本发明在处理污水厂污泥时，采用二次烧结工艺，首先对一半量的污泥进行烧结，再将另一半以细粉的形态分别添加到砖坯的制备中，通过再次烧结，可以形成层层通孔的结构，有利于提高砖体的孔隙率，从而可以提高透水率。本发明还添加粉煤灰作为细骨料，普通河砂作为粗骨料，粉煤灰的多孔结构与普通河砂混合，提高了砖体的强度，通过烧结得到的砖体具有抗压强度高、透水快、吸收噪音等优异性能，同时采用的原料成本低廉，安全环保，是一种生态型地砖。
具体实施方式
下面将结合具体实施例来详细说明本发明，在此本发明的示意性实施例以及说明用来解释本发明，但并不作为对本发明的限定。
一种环保透水砖的制作方法，由下列重量份的原料制备制成：污水厂污泥40-43份、稻壳 6-7份、钾长石粉4-5份、粉煤灰10-12份、水玻璃10-12份、碳酸钠1.5-2份、普通河砂30-33份、纳米氧化锌3-4份、纳米二氧化钛4-5份、水适量；首先将污水厂污泥自然干燥，粉碎处理过200目筛，得到污泥粉待用；将一半量的污泥粉、稻壳、钾长石粉混合，加入适量的水，放入搅拌机中以120转/分的速度搅拌成泥料，控制含水量为20%，然后送入造粒机中挤出造粒得到污泥颗粒，控制颗粒粒度为10目；将污泥颗粒放入干燥箱中，以100℃的温度干燥后送入电阻炉中进行烧结，升温至800℃，保温60分钟，然后继续升温至1100℃，保温60分钟，得到多孔污泥颗粒；将粉煤灰送入球磨机中干磨60分钟，过400目筛待用；将水玻璃溶于5倍量的水中，搅拌形成溶液，加入粉煤灰、纳米氧化锌、纳米二氧化钛，以600转/分的速度搅拌30分钟后超声分散40分钟，然后喷雾干燥，形成混合粉，再与余量的污泥粉混合均匀，形成混合 细骨料待用；将普通河砂、多孔污泥颗粒混合形成混合粗骨料待用；将上述混合粗骨料与混合细骨料以及其余剩余成分混合，加入适量的水拌和均匀， 控制含水量15%，使得混合细骨料均匀地包裹在混合粗骨料表面，形成坯料，然后将坯料放入干压成型机干压成型，控制压力为30MPa，再将制好的坯体置于恒温干燥箱中在105℃的温度下干燥8小时，最后送入电阻炉中烧结，先迅速升温至500℃，然后以4℃/min的速度升温至600℃，再继续升温至1150℃，总烧成时间控制为300分钟，冷却后取出即得。

Claims (1)

1.一种环保透水砖的制作方法，其特征在于，由下列重量份的原料制备制成：污水厂污泥40-43份、稻壳 6-7份、钾长石粉4-5份、粉煤灰10-12份、水玻璃10-12份、碳酸钠1.5-2份、普通河砂30-33份、纳米氧化锌3-4份、纳米二氧化钛4-5份、水适量；首先将污水厂污泥自然干燥，粉碎处理过200目筛，得到污泥粉待用；将一半量的污泥粉、稻壳、钾长石粉混合，加入适量的水，放入搅拌机中以120转/分的速度搅拌成泥料，控制含水量为20%，然后送入造粒机中挤出造粒得到污泥颗粒，控制颗粒粒度为10目；将污泥颗粒放入干燥箱中，以100℃的温度干燥后送入电阻炉中进行烧结，升温至800℃，保温60分钟，然后继续升温至1100℃，保温60分钟，得到多孔污泥颗粒；将粉煤灰送入球磨机中干磨60分钟，过400目筛待用；将水玻璃溶于5倍量的水中，搅拌形成溶液，加入粉煤灰、纳米氧化锌、纳米二氧化钛，以600转/分的速度搅拌30分钟后超声分散40分钟，然后喷雾干燥，形成混合粉，再与余量的污泥粉混合均匀，形成混合 细骨料待用；将普通河砂、多孔污泥颗粒混合形成混合粗骨料待用；将上述混合粗骨料与混合细骨料以及其余剩余成分混合，加入适量的水拌和均匀， 控制含水量15%，使得混合细骨料均匀地包裹在混合粗骨料表面，形成坯料，然后将坯料放入干压成型机干压成型，控制压力为30MPa，再将制好的坯体置于恒温干燥箱中在105℃的温度下干燥8小时，最后送入电阻炉中烧结，先迅速升温至500℃，然后以4℃/min的速度升温至600℃，再继续升温至1150℃，总烧成时间控制为300分钟，冷却后取出即得。
CN201610977625.2A 2016-11-08 2016-11-08 一种环保透水砖的制作方法 Pending CN106588099A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107935551A (zh) * 2017-12-12 2018-04-20 佛山早稻田环保节能科技有限公司 一种环保地砖
CN109796172A (zh) * 2019-02-20 2019-05-24 陕西朗正环保科技有限公司 一种以给水厂污泥为原料的砖块及其制备方法与应用

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107935551A (zh) * 2017-12-12 2018-04-20 佛山早稻田环保节能科技有限公司 一种环保地砖
CN109796172A (zh) * 2019-02-20 2019-05-24 陕西朗正环保科技有限公司 一种以给水厂污泥为原料的砖块及其制备方法与应用

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