Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-heat conduction insulating brick and preparation method thereof
The invention belongs to the technical field of refractory materials, and in particular relates to a low-heat conduction insulating brick and a preparation method thereof. The low-heat conduction insulating brick is composed of a working layer and an insulating layer, wherein the working layer and the insulating layer are adhered by a low-heat conduction high-temperature glue, the insulating layer is a nanometer-micropore insulating plate with the cold crushing strength being greater than or equal to 0.5MPa, and the working layer is prepared from a bauxite aggregate with the particle size being 0-1mm, a bauxite aggregate with the particle size being 1-3mm, a bauxite aggregate with the particle size being 3-5mm, high-alumina powder with the particle size being smaller than 0.074, nano-powder, a high-temperature fortifier and an additionally-added bonding agent. The average volume density of the low-heat conduction insulating brick is far lower than those of a high-strength alkali-resisting brick and an anti-stripping alumina brick, so the dead load of equipment can be greatly lowered; moreover, the heat preservation and heat insulation effect and the service life are both superior to those of the alkali-resisting brick, thus better energy conservation and emission reduction effects can be achieved.
Low-heat conduction insulating brick and preparation method thereof
The invention belongs to the technical field of refractory materials, and in particular relates to a low-heat conduction insulating brick and a preparation method thereof. The low-heat conduction insulating brick is composed of a working layer and an insulating layer, wherein the working layer and the insulating layer are adhered by a low-heat conduction high-temperature glue, the insulating layer is a nanometer-micropore insulating plate with the cold crushing strength being greater than or equal to 0.5MPa, and the working layer is prepared from a bauxite aggregate with the particle size being 0-1mm, a bauxite aggregate with the particle size being 1-3mm, a bauxite aggregate with the particle size being 3-5mm, high-alumina powder with the particle size being smaller than 0.074, nano-powder, a high-temperature fortifier and an additionally-added bonding agent. The average volume density of the low-heat conduction insulating brick is far lower than those of a high-strength alkali-resisting brick and an anti-stripping alumina brick, so the dead load of equipment can be greatly lowered; moreover, the heat preservation and heat insulation effect and the service life are both superior to those of the alkali-resisting brick, thus better energy conservation and emission reduction effects can be achieved.
Low-heat conduction insulating brick and preparation method thereof
YUAN LIN (Autor:in) / LI QUANYOU (Autor:in) / LI YUANJIN (Autor:in) / CAO WEI (Autor:in) / ZHENG JIANLI (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
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