Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Environment-friendly chromium-free air brick
The invention discloses an environment-friendly chromium-free air brick. The air brick is prepared from, by weight, 30-50 parts of tabular corundum particles, 20-30 parts of electro-melted white corundum particles, 2-4 parts of tabular corundum fine powder, 16-20 parts of electro-melted aluminum-rich spinel particles, 2-3 parts of electro-melted aluminum-rich spinel fine powder, 3-5 parts of spinel superfine powder, 1-3 parts of activated aluminum oxide micro powder, 3-5 parts of pure calcium aluminum oxide cement, 0.6-0.8 part of anti-explosion fibers, 0.4-0.6 part of FS65, 0.1-0.3 part of FW10 and 0.2-0.4 part of SD-122. The environment-friendly chromium-free air brick is prepared by adding the spinel superfine powder and an efficient dispersing agent in a material corundum and spinel system with the combination of ultra-low cement, the environment-friendly chromium-free air brick can reach and even exceed the use performance of chromium-containing products of the same kinds, the prepared air brick has the corrosion resistance and seepage resistance, the service life is prolonged, the air permeability is improved, pollution is also greatly reduced, and environment friendliness is ensured.
Environment-friendly chromium-free air brick
The invention discloses an environment-friendly chromium-free air brick. The air brick is prepared from, by weight, 30-50 parts of tabular corundum particles, 20-30 parts of electro-melted white corundum particles, 2-4 parts of tabular corundum fine powder, 16-20 parts of electro-melted aluminum-rich spinel particles, 2-3 parts of electro-melted aluminum-rich spinel fine powder, 3-5 parts of spinel superfine powder, 1-3 parts of activated aluminum oxide micro powder, 3-5 parts of pure calcium aluminum oxide cement, 0.6-0.8 part of anti-explosion fibers, 0.4-0.6 part of FS65, 0.1-0.3 part of FW10 and 0.2-0.4 part of SD-122. The environment-friendly chromium-free air brick is prepared by adding the spinel superfine powder and an efficient dispersing agent in a material corundum and spinel system with the combination of ultra-low cement, the environment-friendly chromium-free air brick can reach and even exceed the use performance of chromium-containing products of the same kinds, the prepared air brick has the corrosion resistance and seepage resistance, the service life is prolonged, the air permeability is improved, pollution is also greatly reduced, and environment friendliness is ensured.
Environment-friendly chromium-free air brick
LIU YONG (Autor:in) / ZHU XUEFENG (Autor:in) / YAO LIANG (Autor:in) / TIAN YIHAO (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
Environment-friendly aluminum-chromium brick for copper-nickel smelting furnace
| Europäisches Patentamt | 2023