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A platform for research: civil engineering, architecture and urbanism
Periclase-pleonaste and hercynite/forsterite composite brick
The invention discloses a periclase-pleonaste and hercynite/forsterite composite brick prepared by compounding a working layer and a heat insulation layer, wherein the working layer is prepared from magnesium-iron sand, hercynite sand and fused magnesite which serve as main raw materials; the heat insulation layer is prepared from medium-heavy synthetic olivine sand, medium-light synthetic boltonite sand, magnesite particles, fine magnesia powder and rice hull ash which serve as main raw materials; and the periclase-pleonaste and hercynite/forsterite composite brick is prepared through the steps of proportioning; mixing; molding; drying; sintering and the like. The working layer of the composite brick disclosed by the invention is strong in erosion resistance, good in thermal shock resistance and low in heat conductivity coefficient and is easily adhered to a kiln coating; the heat insulation layer is favorable in high-temperature volume stability, relatively high in mechanical strength and relatively low in heat conductivity coefficient. Therefore, the composite brick can be used for a high-temperature zone of a rotary cement kiln and is long in service life and capable of remarkably reducing the heat loss of a kiln body and has favorable energy-saving and emission reduction effects.
Periclase-pleonaste and hercynite/forsterite composite brick
The invention discloses a periclase-pleonaste and hercynite/forsterite composite brick prepared by compounding a working layer and a heat insulation layer, wherein the working layer is prepared from magnesium-iron sand, hercynite sand and fused magnesite which serve as main raw materials; the heat insulation layer is prepared from medium-heavy synthetic olivine sand, medium-light synthetic boltonite sand, magnesite particles, fine magnesia powder and rice hull ash which serve as main raw materials; and the periclase-pleonaste and hercynite/forsterite composite brick is prepared through the steps of proportioning; mixing; molding; drying; sintering and the like. The working layer of the composite brick disclosed by the invention is strong in erosion resistance, good in thermal shock resistance and low in heat conductivity coefficient and is easily adhered to a kiln coating; the heat insulation layer is favorable in high-temperature volume stability, relatively high in mechanical strength and relatively low in heat conductivity coefficient. Therefore, the composite brick can be used for a high-temperature zone of a rotary cement kiln and is long in service life and capable of remarkably reducing the heat loss of a kiln body and has favorable energy-saving and emission reduction effects.
Periclase-pleonaste and hercynite/forsterite composite brick
LIU XIJUN (author) / WANG JIEZENG (author) / ZHAI YAOJIE (author) / XU LINLIN (author) / LIU ZHAO (author) / LI SHUNQING (author) / LIU XIAOLEI (author) / YE YAHONG (author) / HU SHIPING (author)
2015-06-24
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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