CN106946545A - 使用工业尾料制备的用于墙体的发泡陶瓷及其制备方法 - Google Patents
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Abstract
本发明涉及使用工业尾料制备的用于墙体的发泡陶瓷及其制备方法,属于节能环保用陶瓷领域由A料、B料和C料组成,其中A料、B料和C料的原料重量百分数组成如下:A料:长石:4‑15%;锂云母:2%;B料:工业尾料:70‑85%;粘结剂:4‑6%;C料:高温氧化还原剂:0.1‑1%;硅藻土:2%;矿化剂:2‑4%;所述的工业尾料为花岗岩尾料或经过磁选的铁矿石渣料。制得产品其抗弯强度能达到7MPa以上,洞穿温度可达到800°,隔音衰减44dB,属于无机材料,无化学污染,密度范围在0.3‑1g/cm3,是一种良好的可再生墙体材料。
Description
技术领域
本发明涉及使用工业尾料制备的用于墙体的发泡陶瓷及其制备方法,属于节能环保用陶瓷领域。
背景技术
发泡陶瓷墙体保温装饰材料是以煤矸石、粉煤灰,金属尾矿、陶瓷瓷砖废料、淤泥、页岩、花岗石废料等为主要原料,掺加少量外加剂,经过原料破碎、混料、成型、烧结等工艺生产。属于无机保温材料,经过切割后可做外墙保温板、外墙内墙装饰板或砌筑用保温砌块,该产品经过表面装饰后,可直接作为外墙使用,古朴、典雅、大方;该产品还可做成复合的集保温隔热和装饰一体的装饰保温砖直接用于内外墙的铺贴。
发泡陶瓷的性能主要性能指标如下:
1、热传导率低导热系数为0.08~0.10W/(MK),与保温砂浆相当;隔热性能好,可充当外墙外保温系统的隔热保温材料。
2、不燃、防火经1200℃以上的高温煅烧而成,燃烧性能为A1级,具电厂耐火砖式的防火性能,是用于有防火要求的外保温系统及防火隔离带的理想材料。
3、耐老化陶瓷类的无机保温材料,耐久性好,不老化,完全与建筑物同寿命,是常规的有机保温材料所无可比拟的。
4、相容性好与水泥砂浆、混凝土等相容性好,粘接可靠,膨胀系数相近,与高温烧制的传统陶瓷建材一样,热胀冷缩下不开裂、不变形、不收缩,双面粉刷无机界面剂后与水泥砂浆拉伸粘接强度即可达到0.2MPa以上。
5、吸水率低吸水率极低,与水泥砂浆、饰面砖等能很好的粘接,外贴饰面砖安全可靠,不受建筑物高度等限制。
6、耐候在阳光暴晒、冷热剧变、风雨交加等恶劣气候条件下不变形、不老化、不开裂,性能稳定。
传统的花岗岩尾料制备发泡陶瓷的方法采用混粘的工艺制作再生材料,其材料密度较大,保温性差,在制备过程中添加不少的化学粘剂。
之前还有两种发泡陶瓷配方及制造方法,如申请号为200710142893.3名称为《利用花岗岩粉废料制造人造复合板》,其配方添加了大量的易燃及有毒材料,不利于环保。另外有申请号为201210286373.0名称为《一种利用花岗岩粉为原料的再生发泡材料》,其配方采用湿式球磨造粒,为了烘干磨料中的水分,造成了大量电能热能的浪费,提高了生产成本。因此,发泡陶瓷的生产无论是从配方还是工艺上都能够做进一步的改进。
陶瓷的传统制造方法为湿式球磨制粒,这种球磨方法的好处为:可将粉粒磨的更细,成型密度更高,烧结密度更高,水及溶液作为助磨剂可提供良好的助磨效果及冷却效果,从而提高单个球磨机的工作效率。属于国内应用较多较为成熟的球磨方法,但是由于有液体水的存在,在制粒和烧结时需要烘干陶粒内的游离水,造成能量的一定浪费。
作为不同于普通陶瓷的发泡陶瓷产品,其对于成型密度和烧结密度的要求并没有传统陶瓷产品那么高,所以其粉粒的相对表面积也没有那么大。此时,水及液体助磨剂的作用就不似传统陶瓷那样明显,其能耗大的缺点也凸显了出来,如果想办法提高干法球磨的工作效率,那么在发泡陶瓷的生产中,干法球磨就完全能够更经济地替代湿法球磨。
发明内容
根据现有技术的不足,本发明要解决的技术问题是:提供一种使用工业尾料制备的用于墙体的发泡陶瓷及其制备方法,环保无污染,价格低廉,性能良好,生产效率高。
本发明解决其技术问题所采用的技术方案是:提供一种使用工业尾料制备的用于墙体的发泡陶瓷,由A料、B料和C料组成,其中A料、B料和C料的原料重量百分数组成如下:
A料:长石:4-15%
锂云母:2%
B料:工业尾料:70-85%
粘结剂:4-6%
C料:高温氧化还原剂:0.1-1%
硅藻土:2%
矿化剂:2-4%
所述的工业尾料为花岗岩尾料或经过磁选的铁矿石渣料。
所述的长石为钙长石和钠长石的混合材料,其中钙长石与钠长石的质量比为(5-7):(5-3)。
所述的高温氧化还原剂为Fe2O3和C,其中Fe2O3和C的质量比例为2:1~5:1。
所述的矿化剂矿化剂为硼砂或黏土。
所述的粘结剂为双飞粉、云母粉或膨润土。
使用工业尾料制备的用于墙体的发泡陶瓷的制备方法,各种原料单独研磨,并且干法球磨,干法造粒,烧结方法为自然堆积刮平,整体烧结,冷却过程在窑炉内完成。
本发明的有益效果是:能够适用于干法造粒,其生产成本大大的低于湿法造粒,作为墙体发泡陶瓷使用时,完全满足使用,其抗弯强度能达到7MPa以上,洞穿温度可达到800°,隔音衰减44dB,属于无机材料,无化学污染,密度范围在0.3-1g/cm3,是一种良好的可再生墙体材料。
具体实施例
下面结合实施例对本发明做进一步描述:
实施例1
将所需要的材料进行烘干,粉碎,细度控制在200目以内。
之后将B,C两种料进行混合,混入球磨机进行干式球磨,A料放入另一套球磨机内进行干式球磨。
将球磨好的B、C混料和A料进行混合,经过干法制粒成细度为10-40目的颗粒。其中A料、B料和C料的原料重量百分数组成如下:
A料:长石:4%
锂云母:2%
B料:工业尾料:85%
粘结剂:4%
C料:高温氧化还原剂:1%
硅藻土:2%
矿化剂:2%
所述的工业尾料为花岗岩尾料。
所述的长石为钙长石和钠长石的混合材料,其中钙长石与钠长石的质量比为7:3。
所述的高温氧化还原剂为Fe2O3和C,其中Fe2O3和C的质量比例为2:1。
所述的矿化剂矿化剂为硼砂。
所述的粘结剂为双飞粉。
将陶粒放入涂有Al2O3防粘图层的模具中自然堆积,刮平后进行整体烧结,烧结温度在1160°左右,加温2小时,保温0.5小时。通过特制得300米窑炉在炉体内进行冷却,知道运动到炉尾,时间约15小时。从窑炉及模具中取出后就是这种用于墙体材料的发泡陶瓷成品了。
制得产品抗弯强度能达到7MPa以上,洞穿温度可达到800°,隔音衰减44dB,属于无机材料,无化学污染,密度范围在0.5g/cm3,是一种良好的可再生墙体材料。
实施例2
将所需要的材料进行烘干,粉碎,细度控制在200目以内。
之后将B,C两种料进行混合,混入球磨机进行干式球磨,A料放入另一套球磨机内进行干式球磨。
将球磨好的B、C混料和A料进行混合,经过干法制粒成细度为10-40目的颗粒。其中A料、B料和C料的原料重量百分数组成如下:
A料:长石:15%
锂云母:2%
B料:工业尾料:70%
粘结剂:6%
C料:高温氧化还原剂:1%
硅藻土:2%
矿化剂:4%
所述的工业尾料为经过磁选的铁矿石渣料。
所述的长石为钙长石和钠长石的混合材料,其中钙长石与钠长石的质量比为1:1。
所述的高温氧化还原剂为Fe2O3和C,其中Fe2O3和C的质量比例为5:1。
所述的矿化剂矿化剂为黏土。
所述的粘结剂为云母粉。
将陶粒放入涂有Al2O3防粘图层的模具中自然堆积,刮平后进行整体烧结,烧结温度在1160°左右,加温3小时,保温1小时。通过特制得300米窑炉在炉体内进行冷却,知道运动到炉尾,时间约20小时。从窑炉及模具中取出后就是这种用于墙体材料的发泡陶瓷成品了。
制得产品抗弯强度能达到7MPa以上,洞穿温度可达到800°,隔音衰减44dB,属于无机材料,无化学污染,密度范围在0.7g/cm3,是一种良好的可再生墙体材料。
实施例3
将所需要的材料进行烘干,粉碎,细度控制在200目以内。
之后将B,C两种料进行混合,混入球磨机进行干式球磨,A料放入另一套球磨机内进行干式球磨。
将球磨好的B、C混料和A料进行混合,经过干法制粒成细度为10-40目的颗粒。其中A料、B料和C料的原料重量百分数组成如下:
A料:长石:10%
锂云母:2%
B料:工业尾料:77.9%
粘结剂:5%
C料:高温氧化还原剂:0.1%
硅藻土:2%
矿化剂:3%
所述的工业尾料为经过磁选的铁矿石渣料。
所述的长石为钙长石和钠长石的混合材料,其中钙长石与钠长石的质量比为5:3。
所述的高温氧化还原剂为Fe2O3和C,其中Fe2O3和C的质量比例为3:1。
所述的矿化剂矿化剂为黏土。
所述的粘结剂为云母粉。
将陶粒放入涂有Al2O3防粘图层的模具中自然堆积,刮平后进行整体烧结,烧结温度在1160°左右,加温3小时,保温1小时。通过特制得300米窑炉在炉体内进行冷却,知道运动到炉尾,时间约20小时。从窑炉及模具中取出后就是这种用于墙体材料的发泡陶瓷成品了。
制得产品抗弯强度能达到7MPa以上,洞穿温度可达到800°,隔音衰减44dB,属于无机材料,无化学污染,密度范围在0.8g/cm3,是一种良好的可再生墙体材料。
Claims (6)
1.一种使用工业尾料制备的用于墙体的发泡陶瓷,其特征在于由A料、B料和C料组成,其中A料、B料和C料的原料重量百分数组成如下:
A料:长石:4-15%
锂云母:2%
B料:工业尾料:70-85%
粘结剂:4-6%
C料:高温氧化还原剂:0.1-1%
硅藻土:2%
矿化剂:2-4%
所述的工业尾料为花岗岩尾料或经过磁选的铁矿石渣料。
2.根据权利要求1所述使用工业尾料制备的用于墙体的发泡陶瓷,其特征在于所述的长石为钙长石和钠长石的混合材料,其中钙长石与钠长石的质量比为(5-7):(5-3)。
3.根据权利要求1所述使用工业尾料制备的用于墙体的发泡陶瓷,其特征在于所述的高温氧化还原剂为Fe2O3和C,其中Fe2O3和C的质量比例为2:1~5:1。
4.根据权利要求1所述使用工业尾料制备的用于墙体的发泡陶瓷,其特征在于所述的矿化剂矿化剂为硼砂或黏土。
5.根据权利要求1所述使用工业尾料制备的用于墙体的发泡陶瓷,其特征在于所述的粘结剂为双飞粉、云母粉或膨润土。
6.一种使用工业尾料制备的用于墙体的发泡陶瓷的制备方法,其特征在于各种原料单独研磨,并且干法球磨,干法造粒,烧结方法为自然堆积刮平,整体烧结,冷却过程在窑炉内完成。
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