A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a technological method for reducing the shrinkage rate of coal gangue-based insulating bricks in a roasting process, and relates to the technical field of building materials. The technological method specifically comprises the following steps of: 1) preparing a nano chitin dispersion liquid from shrimp shells; 2) adding multiwalled carbon nanotubes into a nanocellulose suspension, and adding alumina fibers and mullite fibers to obtain a fiber dispersion liquid; 3) uniformly mixing aluminum oxide sol and silicon dioxide sol to obtain composite sol; and 4) uniformly mixing the products obtained in the steps 1) and 2), drying an obtained mixture to obtain composite fibers, drying and screening coal gangue, fly ash and engineering spoil, adding water, adding the composite fibers and the composite sol, performing aging, adding expanded perlite, and carrying out compression molding, drying, and roasting. According to the production process provided by the invention, the volume shrinkage rate of the insulating bricks can be effectively reduced, and the deformation of the insulating bricks is reduced, so that the insulating bricks are not easy to crack in a high-temperature roasting process, and the performance of the insulating bricks is improved.
本发明公开了一种降低煤矸石基保温砖在焙烧过程中收缩率的工艺方法，涉及建筑材料技术领域，具体工艺方法如下：1）利用虾壳制得纳米几丁质分散液；2）将多壁碳纳米管加入到纳米纤维素悬浮液中，加入氧化铝纤维和莫来石纤维得到纤维分散液；3）将氧化铝溶胶和二氧化硅溶胶混匀得到复合溶胶；4）将步骤1）、2）中的产物混匀后干燥得到复合纤维，将煤矸石、粉煤灰和工程弃土烘干筛分后加入水，然后加入复合纤维和复合溶胶，陈化后加入膨胀珍珠岩压制成型，烘干后进行焙烧即可。本发明提供的生产工艺，可有效以降低保温砖的体积收缩率，减少保温砖形变的产生，使保温砖在高温焙烧过程中不易出现开裂现象，提高了保温砖的性能。
The invention discloses a technological method for reducing the shrinkage rate of coal gangue-based insulating bricks in a roasting process, and relates to the technical field of building materials. The technological method specifically comprises the following steps of: 1) preparing a nano chitin dispersion liquid from shrimp shells; 2) adding multiwalled carbon nanotubes into a nanocellulose suspension, and adding alumina fibers and mullite fibers to obtain a fiber dispersion liquid; 3) uniformly mixing aluminum oxide sol and silicon dioxide sol to obtain composite sol; and 4) uniformly mixing the products obtained in the steps 1) and 2), drying an obtained mixture to obtain composite fibers, drying and screening coal gangue, fly ash and engineering spoil, adding water, adding the composite fibers and the composite sol, performing aging, adding expanded perlite, and carrying out compression molding, drying, and roasting. According to the production process provided by the invention, the volume shrinkage rate of the insulating bricks can be effectively reduced, and the deformation of the insulating bricks is reduced, so that the insulating bricks are not easy to crack in a high-temperature roasting process, and the performance of the insulating bricks is improved.
本发明公开了一种降低煤矸石基保温砖在焙烧过程中收缩率的工艺方法，涉及建筑材料技术领域，具体工艺方法如下：1）利用虾壳制得纳米几丁质分散液；2）将多壁碳纳米管加入到纳米纤维素悬浮液中，加入氧化铝纤维和莫来石纤维得到纤维分散液；3）将氧化铝溶胶和二氧化硅溶胶混匀得到复合溶胶；4）将步骤1）、2）中的产物混匀后干燥得到复合纤维，将煤矸石、粉煤灰和工程弃土烘干筛分后加入水，然后加入复合纤维和复合溶胶，陈化后加入膨胀珍珠岩压制成型，烘干后进行焙烧即可。本发明提供的生产工艺，可有效以降低保温砖的体积收缩率，减少保温砖形变的产生，使保温砖在高温焙烧过程中不易出现开裂现象，提高了保温砖的性能。
Process method for reducing shrinkage rate of coal gangue-based insulating bricks in roasting process
一种降低煤矸石基保温砖在焙烧过程中收缩率的工艺方法
GUO YAN (author)
2020-08-18
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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