Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Production method of low-thermal-conductivity magnesium hercynite brick for rotary cement kiln
The invention relates to the technical field of refractory materials, and provides a production method of a low-thermal-conductivity magnesium-hercynite brick for a rotary cement kiln, which comprises the following steps: step 1, preparing a magnesium-hercynite brick raw material, comprising A-class, B-class and C-class high-purity magnesia or fused magnesia, high-purity magnesia or fused magnesia, hercynite, a pore-forming agent and a paper pulp binding agent, 2, weighing a proper amount of high-purity magnesia or fused magnesia, hercynite or sintered hercynite and a pore-forming agent, and putting into a sand mixer for mixing and grinding; according to the magnesium-iron-aluminum brick, the pore-forming agent is melted within the temperature range of 500-800 DEG C, so that the magnesium-iron-aluminum brick can be completely combusted, uniform round-hole-shaped micropores are formed in the internal structure of the magnesium-iron-aluminum brick, a gas-solid interface in the brick structure is increased, phonon scattering of solid-phase heat conduction is increased, the heat conductivity of the brick is effectively reduced, and loss of heat in a kiln is reduced.
本发明涉及耐火材料技术领域，提供了一种水泥回转窑用低导热率镁铁铝尖晶石砖的生产方法，其中，该回转窑用低导热率镁铁铝尖晶石砖的生产方法包括以下步骤：步骤一、准备镁铁铝尖晶石砖原料，包括A类、B类、C类高纯镁砂或电熔镁砂、高纯镁砂或电熔镁砂、铁铝尖晶石、造孔剂和纸浆结合剂；步骤二、称取适量的高纯镁砂或电熔镁砂、铁铝尖晶石或烧结铁铝尖晶石和造孔剂，放入混砂机中进行混碾。通过造孔剂在500℃～800℃温度范围内熔融、从而能够完全燃烧，并在镁铁铝砖内部结构中形成均匀的圆孔状微孔，增加了砖结构中气固界面，增大了固相导热的声子散射，有效降低了砖的导热率，减少了窑内热量的散失。
Production method of low-thermal-conductivity magnesium hercynite brick for rotary cement kiln
The invention relates to the technical field of refractory materials, and provides a production method of a low-thermal-conductivity magnesium-hercynite brick for a rotary cement kiln, which comprises the following steps: step 1, preparing a magnesium-hercynite brick raw material, comprising A-class, B-class and C-class high-purity magnesia or fused magnesia, high-purity magnesia or fused magnesia, hercynite, a pore-forming agent and a paper pulp binding agent, 2, weighing a proper amount of high-purity magnesia or fused magnesia, hercynite or sintered hercynite and a pore-forming agent, and putting into a sand mixer for mixing and grinding; according to the magnesium-iron-aluminum brick, the pore-forming agent is melted within the temperature range of 500-800 DEG C, so that the magnesium-iron-aluminum brick can be completely combusted, uniform round-hole-shaped micropores are formed in the internal structure of the magnesium-iron-aluminum brick, a gas-solid interface in the brick structure is increased, phonon scattering of solid-phase heat conduction is increased, the heat conductivity of the brick is effectively reduced, and loss of heat in a kiln is reduced.
本发明涉及耐火材料技术领域，提供了一种水泥回转窑用低导热率镁铁铝尖晶石砖的生产方法，其中，该回转窑用低导热率镁铁铝尖晶石砖的生产方法包括以下步骤：步骤一、准备镁铁铝尖晶石砖原料，包括A类、B类、C类高纯镁砂或电熔镁砂、高纯镁砂或电熔镁砂、铁铝尖晶石、造孔剂和纸浆结合剂；步骤二、称取适量的高纯镁砂或电熔镁砂、铁铝尖晶石或烧结铁铝尖晶石和造孔剂，放入混砂机中进行混碾。通过造孔剂在500℃～800℃温度范围内熔融、从而能够完全燃烧，并在镁铁铝砖内部结构中形成均匀的圆孔状微孔，增加了砖结构中气固界面，增大了固相导热的声子散射，有效降低了砖的导热率，减少了窑内热量的散失。
Production method of low-thermal-conductivity magnesium hercynite brick for rotary cement kiln
一种水泥回转窑用低导热率镁铁铝尖晶石砖的生产方法
ZHANG YAQUAN (Autor:in) / CHEN XUEFENG (Autor:in) / YUAN LIN (Autor:in) / LI YUANJIN (Autor:in) / LI WEI (Autor:in) / WANG XUYUAN (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Low-thermal-conductivity magnesium hercynite brick for cement kiln and preparation method thereof
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