Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Lightweight heat-insulating refractory brick prepared based on solid waste phosphogypsum and process of lightweight heat-insulating refractory brick
The process comprises the following steps: uniformly mixing ardealite powder, coal gangue powder, sludge powder, mullite powder, calcium carbonate powder, bimodal alumina powder, silica fume, mullite fibers and a pre-sintering template agent according to a certain proportion, adding an accelerator, a dispersant, a binder and water, uniformly stirring, adding prefabricated foam into slurry, uniformly stirring, and carrying out heat preservation for 2-4 hours at the temperature of 20-30 DEG C to obtain the light heat-insulating refractory brick. And injecting the foam slurry into a grinding tool for casting molding, demolding, naturally drying, and preserving heat at 900-1200 DEG C for 3-6 hours to prepare the light heat-insulating refractory brick. Solid waste phosphogypsum, solid waste coal gangue and sludge can be consumed on a large scale, and the prepared light heat-insulating brick is low in volume density, high in strength, low in heat conductivity coefficient and small in permanent linear change and has a wide market prospect of being applied to serving at the temperature of 1200 DEG C or below.
本发明涉及一种轻质隔热耐火砖及其工艺，将一定比例的磷石膏粉、煤矸石粉、淤泥粉、莫来石粉、碳酸钙粉、双峰氧化铝粉、硅灰、莫来石纤维、预烧结模版剂混合均匀后，外加速凝剂、分散剂、结合剂和水，搅拌均匀，向泥浆中添加预制的泡沫搅拌均匀，将泡沫泥浆注入磨具浇注成型，脱模后自然干燥后，于900～1200℃保温3～6h，制备出轻质隔热耐火砖。本发明能大规模消纳固废磷石膏、固废煤矸石和淤泥，制备的轻质隔热砖的体密低、强度高、导热系数低、永久线变化小，具有应用于1200℃以下服役的广阔市场前景。
Lightweight heat-insulating refractory brick prepared based on solid waste phosphogypsum and process of lightweight heat-insulating refractory brick
The process comprises the following steps: uniformly mixing ardealite powder, coal gangue powder, sludge powder, mullite powder, calcium carbonate powder, bimodal alumina powder, silica fume, mullite fibers and a pre-sintering template agent according to a certain proportion, adding an accelerator, a dispersant, a binder and water, uniformly stirring, adding prefabricated foam into slurry, uniformly stirring, and carrying out heat preservation for 2-4 hours at the temperature of 20-30 DEG C to obtain the light heat-insulating refractory brick. And injecting the foam slurry into a grinding tool for casting molding, demolding, naturally drying, and preserving heat at 900-1200 DEG C for 3-6 hours to prepare the light heat-insulating refractory brick. Solid waste phosphogypsum, solid waste coal gangue and sludge can be consumed on a large scale, and the prepared light heat-insulating brick is low in volume density, high in strength, low in heat conductivity coefficient and small in permanent linear change and has a wide market prospect of being applied to serving at the temperature of 1200 DEG C or below.
本发明涉及一种轻质隔热耐火砖及其工艺，将一定比例的磷石膏粉、煤矸石粉、淤泥粉、莫来石粉、碳酸钙粉、双峰氧化铝粉、硅灰、莫来石纤维、预烧结模版剂混合均匀后，外加速凝剂、分散剂、结合剂和水，搅拌均匀，向泥浆中添加预制的泡沫搅拌均匀，将泡沫泥浆注入磨具浇注成型，脱模后自然干燥后，于900～1200℃保温3～6h，制备出轻质隔热耐火砖。本发明能大规模消纳固废磷石膏、固废煤矸石和淤泥，制备的轻质隔热砖的体密低、强度高、导热系数低、永久线变化小，具有应用于1200℃以下服役的广阔市场前景。
Lightweight heat-insulating refractory brick prepared based on solid waste phosphogypsum and process of lightweight heat-insulating refractory brick
一种基于固废磷石膏制备的轻质隔热耐火砖及其工艺
YU XIAOPING (Autor:in) / LIAO JIA (Autor:in) / CHEN SONGLIN (Autor:in) / WEI HAN (Autor:in) / SUN XUDONG (Autor:in) / YU SHENG (Autor:in) / QIAN ZHIHAO (Autor:in)
29.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Lightweight high-aluminum heat-insulating refractory brick and preparation method thereof
| Europäisches Patentamt | 2022
Refractory heat-insulating brick and preparation process thereof
| Europäisches Patentamt | 2021