Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special clay brick for carbon roasting furnace and preparation method thereof
The invention relates to the technical field of refractory materials, and specifically to a special clay brick for a carbon roasting furnace. The clay brick is prepared from three-stage bauxite clinker, andalusite and clay, the invention further provides a preparation method of the special clay brick for the carbon roasting furnace. In the preparation process, sieving a paper pulp; adding water for diluting when the particle size is lower than 22 meshes; mixing with a powder; avoiding formation of mud pies, forming pores in a fired brick blank; refining the slurry of which the size is higher than 22 meshes, and impregnating a blank product subjected to primary baking; forming non-agglomerated small molecules after refinement, realizing redistribution of fine fibers in the slurry in a porestructure of a blank product under high-temperature roasting, so that the volume density of the blank product is improved, the internal structure of the blank product is further densified, the blank is roasted and dried for multiple times in the slurry, good grafting is guaranteed, fiber reinforcement is formed, and cracks are prevented from being generated during shrinkage; through final sintering, the Fe2O3 content is reduced, the volume is reduced, and the clay has a glass liquid phase and fills gaps of unmelted particles.
本发明涉及耐火材料技术领域，更具体而言，涉及一种碳素焙烧炉用特种粘土砖，该粘土砖由三级铝矾土熟料、红柱石、粘土制得，本发明另一方面提供了一种碳素焙烧炉用特种粘土砖的制备方法，制备过程中将纸浆液过筛，低于22目加水稀释与粉料混合，避免形成泥团，造成烧成后砖坯产生溶洞，高于22目浆料细化后用于经一次烘焙后坯制品的浸渍，细化后形成不团聚的小分子，浆料中细小纤维高温焙烧下在坯制品孔隙结构中重新分布，提高坯制品体积密度，使其内部结构进一步密制化，坯料在浆料中多次焙烧、干燥，保证良好接枝，构成纤维补强，避免在收缩时产生裂纹；通过最终烧结，降低FeO含量，体积收缩，粘土出现玻璃液态相，塞满未熔颗粒空隙。
Special clay brick for carbon roasting furnace and preparation method thereof
The invention relates to the technical field of refractory materials, and specifically to a special clay brick for a carbon roasting furnace. The clay brick is prepared from three-stage bauxite clinker, andalusite and clay, the invention further provides a preparation method of the special clay brick for the carbon roasting furnace. In the preparation process, sieving a paper pulp; adding water for diluting when the particle size is lower than 22 meshes; mixing with a powder; avoiding formation of mud pies, forming pores in a fired brick blank; refining the slurry of which the size is higher than 22 meshes, and impregnating a blank product subjected to primary baking; forming non-agglomerated small molecules after refinement, realizing redistribution of fine fibers in the slurry in a porestructure of a blank product under high-temperature roasting, so that the volume density of the blank product is improved, the internal structure of the blank product is further densified, the blank is roasted and dried for multiple times in the slurry, good grafting is guaranteed, fiber reinforcement is formed, and cracks are prevented from being generated during shrinkage; through final sintering, the Fe2O3 content is reduced, the volume is reduced, and the clay has a glass liquid phase and fills gaps of unmelted particles.
本发明涉及耐火材料技术领域，更具体而言，涉及一种碳素焙烧炉用特种粘土砖，该粘土砖由三级铝矾土熟料、红柱石、粘土制得，本发明另一方面提供了一种碳素焙烧炉用特种粘土砖的制备方法，制备过程中将纸浆液过筛，低于22目加水稀释与粉料混合，避免形成泥团，造成烧成后砖坯产生溶洞，高于22目浆料细化后用于经一次烘焙后坯制品的浸渍，细化后形成不团聚的小分子，浆料中细小纤维高温焙烧下在坯制品孔隙结构中重新分布，提高坯制品体积密度，使其内部结构进一步密制化，坯料在浆料中多次焙烧、干燥，保证良好接枝，构成纤维补强，避免在收缩时产生裂纹；通过最终烧结，降低FeO含量，体积收缩，粘土出现玻璃液态相，塞满未熔颗粒空隙。
Special clay brick for carbon roasting furnace and preparation method thereof
一种碳素焙烧炉用特种粘土砖及其制备方法
WU BENYOU (Autor:in) / HAO LIANGJUN (Autor:in) / HAN BAJIN (Autor:in) / QIN YINGJUN (Autor:in)
11.08.2020
Patent
Elektronische Ressource
Chinesisch
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