CN106747567A - 一种低成本抗开裂烧结砖的制备方法 - Google Patents
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Abstract
本发明公开了一种低成本抗开裂烧结砖的制备方法,包括如下步骤:将陶土粉体送入坩埚中在500‑600℃保温,冷却至室温,加入盐酸在温度75‑85℃搅拌,过滤,洗涤至呈中性,干燥,加入糠醛混合均匀,送入高压反应釜中,设置温度为220‑260℃保温,氮气保护下在温度800‑900℃保温,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;将废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃、改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。本发明将废物再利用,不仅可降低成本,且可降低砖开裂性,避免雨水渗漏。
Description
技术领域
本发明涉及烧结砖技术领域,尤其涉及一种低成本抗开裂烧结砖的制备方法。
背景技术
目前应用最广泛的保温墙表面非常易开裂、雨水渗漏严重,使用寿命不能做到与建筑物同寿命,使用过程中一旦发现问题很难维修,施工过程中极易发生火灾等等。长期以来保温砖作为建筑行业用量最大最重要的墙体材料,每年不仅毁坏大量土地,而且破坏了生态环境。如何制备一种可降低保温砖开裂性,避免雨水渗漏,并降低成本,成为目前需要解决的技术问题。
发明内容
本发明提出了一种低成本抗开裂烧结砖的制备方法,本发明将废物再利用,不仅可降低成本,且可降低砖开裂性,避免雨水渗漏。
本发明提出的一种低成本抗开裂烧结砖的制备方法,包括如下步骤:将陶土粉体送入坩埚中在500-600℃保温,冷却至室温,加入盐酸在温度75-85℃搅拌,过滤,洗涤至呈中性,干燥,加入糠醛混合均匀,送入高压反应釜中,设置温度为220-260℃保温,氮气保护下在温度800-900℃保温,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;将废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃、改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
优选地,盐酸的浓度为0.7-1mol/L,且陶土粉体、盐酸的重量比为20-40:80-120。
优选地,糠醛、陶土粉体的重量比为20-40:20-40。
优选地,按重量份称取20-50份废渣、15-25份粘土、5-15份页岩、5-15份煤矸石、2-8份粉煤灰、5-15份硅藻土、14-20份膨胀珍珠岩、5-15份水玻璃、20-50份改性陶土纳米管混合搅拌均匀。
优选地,送入高压反应釜中,在温度220-260℃的保温时间为2-6h。
优选地,氮气保护下,在温度800-900℃的保温时间为20-30min。
优选地,所述的低成本抗开裂烧结砖的制备方法,包括如下步骤:按重量份将20-40份陶土粉体送入坩埚中在500-600℃保温25-45min,冷却至室温,加入80-120份浓度为0.7-1mol/L盐酸,在温度75-85℃搅拌5-15min,过滤,洗涤至呈中性,干燥,加入20-40份糠醛混合均匀,送入高压反应釜中,设置温度为220-260℃保温2-6h,氮气保护下在温度800-900℃保温20-30min,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;按重量份称取20-50份废渣、15-25份粘土、5-15份页岩、5-15份煤矸石、2-8份粉煤灰、5-15份硅藻土、14-20份膨胀珍珠岩、5-15份水玻璃、20-50份改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
本发明的改性陶土中,将陶土粉体在坩埚中热处理后,经过盐酸活化,与糠醛在高压反应釜中浸渍处理,然后经过高温炭化,制品呈网络状结构,不但富含大量的介孔结构,也含有少量的微孔和大孔且具有三重孔径分布,且原料来源丰富,价格低廉,与废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃配合相互间吸附能力强,经过烧结后,制成的烧结砖达到国家相关标准,可以正常使用,且解决了废乳化液处理时产生的大量废渣的处理问题,使废渣得以资源化再利用,还节约了粘土资源。
具体实施方式
下面,通过具体实施例对本发明的技术方案进行详细说明。
实施例1
一种低成本抗开裂烧结砖的制备方法,包括如下步骤:将陶土粉体送入坩埚中在600℃保温,冷却至室温,加入盐酸在温度75℃搅拌,过滤,洗涤至呈中性,干燥,加入糠醛混合均匀,送入高压反应釜中,设置温度为260℃保温,氮气保护下在温度800℃保温,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;将废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃、改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
实施例2
一种低成本抗开裂烧结砖的制备方法,包括如下步骤:将陶土粉体送入坩埚中在500℃保温,冷却至室温,加入盐酸在温度85℃搅拌,过滤,洗涤至呈中性,干燥,加入糠醛混合均匀,送入高压反应釜中,设置温度为220℃保温,氮气保护下在温度900℃保温,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;将废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃、改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
实施例3
一种低成本抗开裂烧结砖的制备方法,包括如下步骤:按重量份将20份陶土粉体送入坩埚中在600℃保温25min,冷却至室温,加入120份浓度为0.71mol/L盐酸,在温度85℃搅拌5min,过滤,洗涤至呈中性,干燥,加入40份糠醛混合均匀,送入高压反应釜中,设置温度为220℃保温6h,氮气保护下在温度800℃保温30min,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;按重量份称取20份废渣、25份粘土、5份页岩、15份煤矸石、2份粉煤灰、15份硅藻土、14份膨胀珍珠岩、15份水玻璃、20份改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
实施例4
一种低成本抗开裂烧结砖的制备方法,包括如下步骤:按重量份将40份陶土粉体送入坩埚中在500℃保温45min,冷却至室温,加入80份浓度为1mol/L盐酸,在温度75℃搅拌15min,过滤,洗涤至呈中性,干燥,加入20份糠醛混合均匀,送入高压反应釜中,设置温度为260℃保温2h,氮气保护下在温度900℃保温20min,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;按重量份称取50份废渣、15份粘土、15份页岩、5份煤矸石、8份粉煤灰、5份硅藻土、20份膨胀珍珠岩、5份水玻璃、50份改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
实施例5
一种低成本抗开裂烧结砖的制备方法,包括如下步骤:按重量份将35份陶土粉体送入坩埚中在525℃保温35min,冷却至室温,加入105份浓度为0.9mol/L盐酸,在温度78℃搅拌12min,过滤,洗涤至呈中性,干燥,加入36份糠醛混合均匀,送入高压反应釜中,设置温度为245℃保温4h,氮气保护下在温度840℃保温26min,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;按重量份称取42份废渣、21份粘土、8份页岩、12份煤矸石、6份粉煤灰、8份硅藻土、18份膨胀珍珠岩、12份水玻璃、35份改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
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,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (7)
1.一种低成本抗开裂烧结砖的制备方法,其特征在于,包括如下步骤:将陶土粉体送入坩埚中在500-600℃保温,冷却至室温,加入盐酸在温度75-85℃搅拌,过滤,洗涤至呈中性,干燥,加入糠醛混合均匀,送入高压反应釜中,设置温度为220-260℃保温,氮气保护下在温度800-900℃保温,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;将废渣、粘土、页岩、煤矸石、粉煤灰、硅藻土、膨胀珍珠岩、水玻璃、改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
2.根据权利要求1所述的低成本抗开裂烧结砖的制备方法,其特征在于,盐酸的浓度为0.7-1mol/L,且陶土粉体、盐酸的重量比为20-40:80-120。
3.根据权利要求1或2所述的低成本抗开裂烧结砖的制备方法,其特征在于,糠醛、陶土粉体的重量比为20-40:20-40。
4.根据权利要求1-3任一项所述的低成本抗开裂烧结砖的制备方法,其特征在于,按重量份称取20-50份废渣、15-25份粘土、5-15份页岩、5-15份煤矸石、2-8份粉煤灰、5-15份硅藻土、14-20份膨胀珍珠岩、5-15份水玻璃、20-50份改性陶土纳米管混合搅拌均匀。
5.根据权利要求1-4任一项所述的低成本抗开裂烧结砖的制备方法,其特征在于,送入高压反应釜中,在温度220-260℃的保温时间为2-6h。
6.根据权利要求1-5任一项所述的低成本抗开裂烧结砖的制备方法,其特征在于,氮气保护下,在温度800-900℃的保温时间为20-30min。
7.根据权利要求1-6任一项所述的低成本抗开裂烧结砖的制备方法,其特征在于,包括如下步骤:按重量份将20-40份陶土粉体送入坩埚中在500-600℃保温25-45min,冷却至室温,加入80-120份浓度为0.7-1mol/L盐酸,在温度75-85℃搅拌5-15min,过滤,洗涤至呈中性,干燥,加入20-40份糠醛混合均匀,送入高压反应釜中,设置温度为220-260℃保温2-6h,氮气保护下在温度800-900℃保温20-30min,冷却,洗涤至呈中性,干燥,粉碎,得到改性陶土;按重量份称取20-50份废渣、15-25份粘土、5-15份页岩、5-15份煤矸石、2-8份粉煤灰、5-15份硅藻土、14-20份膨胀珍珠岩、5-15份水玻璃、20-50份改性陶土纳米管混合搅拌均匀,成型,干燥,烧结,制得低成本抗开裂烧结砖。
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