Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nickel and iron slag-based forsterite lightweight heat insulation brick and making method thereof
The invention relates to a making method of a nickel and iron slag-based forsterite lightweight heat insulation brick. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: adopting 65-75wt% of nickel and iron slag, 10-20wt% of light calcined magnesia fine powder, 5-15wt% of magnesium carbonate fine powder and 5-10wt% of silicon micro-powder as raw materials, adding an additive accounting for 0.5-2.0wt% of the weight of the raw materials, carbon black accounting for 5-15wt% of the weight of the raw materials and a paper pulp waste liquid accounting for 3-9wt% of the weight of the raw materials, uniformly mixing, and carrying out compaction molding; and carrying out heat insulation at 500-700DEG C for 4-8h, sintering at 1300-1550DEG C, and carrying out heat insulation for 2-6h in order to obtain the nickel and iron slag-based forsterite lightweight heat insulation brick. The making method has the advantages of high resource recovery rate, environmental protection and low production cost; and the nickel and iron slag-based forsterite lightweight heat insulation brick made in the invention has the advantages of good volume stability, high pressure strength, low volume density, high micro-porosity and low heat conduction coefficient.
Nickel and iron slag-based forsterite lightweight heat insulation brick and making method thereof
The invention relates to a making method of a nickel and iron slag-based forsterite lightweight heat insulation brick. A technical scheme adopted in the invention is characterized in that the method comprises the following steps: adopting 65-75wt% of nickel and iron slag, 10-20wt% of light calcined magnesia fine powder, 5-15wt% of magnesium carbonate fine powder and 5-10wt% of silicon micro-powder as raw materials, adding an additive accounting for 0.5-2.0wt% of the weight of the raw materials, carbon black accounting for 5-15wt% of the weight of the raw materials and a paper pulp waste liquid accounting for 3-9wt% of the weight of the raw materials, uniformly mixing, and carrying out compaction molding; and carrying out heat insulation at 500-700DEG C for 4-8h, sintering at 1300-1550DEG C, and carrying out heat insulation for 2-6h in order to obtain the nickel and iron slag-based forsterite lightweight heat insulation brick. The making method has the advantages of high resource recovery rate, environmental protection and low production cost; and the nickel and iron slag-based forsterite lightweight heat insulation brick made in the invention has the advantages of good volume stability, high pressure strength, low volume density, high micro-porosity and low heat conduction coefficient.
Nickel and iron slag-based forsterite lightweight heat insulation brick and making method thereof
XU YIBIAO (Autor:in) / LI YAWEI (Autor:in) / SANG SHAOBAI (Autor:in) / WANG TONGSHENG (Autor:in) / PAN JIAHE (Autor:in) / ZHANG ZHIREN (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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