A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of natural high-alumina refractory material for producing high-alumina vanadine
The invention discloses a preparation method of a natural high-alumina refractory material for producing high-alumina vanadine, and the method comprises the following steps: weighing aggregate, putting the aggregate into a container provided with a mechanical stirring device, and then adding silica sol into the container. According to the high-alumina refractory material for naturally producing high-alumina vanadine, mixed aggregate of high-alumina bauxite, silicon carbide aggregate and zirconium mullite aggregate is introduced into the raw materials of the refractory material, the surface of the aggregate is coated with silica sol, and a large number of potassium-containing compounds are formed in the aggregate which is not coated with the silica sol; after the aggregate coated with the silica sol is sintered, a layer of mullite core-shell structure is formed on the surface of the aggregate, excessive liquid phases exist, in the process that a refractory material is eroded, the silicon-rich liquid phase on the surface of the aggregate is beneficial to absorbing potassium vapor and further forming more liquid phases, the liquid phases are attached to the surface of the aggregate, permeation of the potassium vapor is prevented, the potassium vapor can be prevented from permeating, and the alkali corrosion resistance of the material is improved.
本发明公开了一种天然产高铝钒土的高铝质耐火材料制备方法，称取骨料投入装有机械搅拌装置的容器中，接着向容器中加入硅溶胶。该天然产高铝钒土的高铝质耐火材料，通过在耐火材料的原料中引入高铝矾土、碳化硅骨料和锆莫来石骨料的混合骨料，并且在骨料的表面涂覆硅溶胶，未涂覆硅溶胶的骨料，内部有大量含钾化合物形成，涂覆硅溶胶的骨料经过烧成后其表面出形成一层莫来石的核壳结构外，还存在过量的液相，在耐火材料受到侵蚀的过程中，骨料表面的富硅液相有助于吸收钾蒸气并进一步形成更多液相，附着在骨料表面，阻止钾蒸气的渗透，提高了材料的抗碱侵蚀能力。
Preparation method of natural high-alumina refractory material for producing high-alumina vanadine
The invention discloses a preparation method of a natural high-alumina refractory material for producing high-alumina vanadine, and the method comprises the following steps: weighing aggregate, putting the aggregate into a container provided with a mechanical stirring device, and then adding silica sol into the container. According to the high-alumina refractory material for naturally producing high-alumina vanadine, mixed aggregate of high-alumina bauxite, silicon carbide aggregate and zirconium mullite aggregate is introduced into the raw materials of the refractory material, the surface of the aggregate is coated with silica sol, and a large number of potassium-containing compounds are formed in the aggregate which is not coated with the silica sol; after the aggregate coated with the silica sol is sintered, a layer of mullite core-shell structure is formed on the surface of the aggregate, excessive liquid phases exist, in the process that a refractory material is eroded, the silicon-rich liquid phase on the surface of the aggregate is beneficial to absorbing potassium vapor and further forming more liquid phases, the liquid phases are attached to the surface of the aggregate, permeation of the potassium vapor is prevented, the potassium vapor can be prevented from permeating, and the alkali corrosion resistance of the material is improved.
本发明公开了一种天然产高铝钒土的高铝质耐火材料制备方法，称取骨料投入装有机械搅拌装置的容器中，接着向容器中加入硅溶胶。该天然产高铝钒土的高铝质耐火材料，通过在耐火材料的原料中引入高铝矾土、碳化硅骨料和锆莫来石骨料的混合骨料，并且在骨料的表面涂覆硅溶胶，未涂覆硅溶胶的骨料，内部有大量含钾化合物形成，涂覆硅溶胶的骨料经过烧成后其表面出形成一层莫来石的核壳结构外，还存在过量的液相，在耐火材料受到侵蚀的过程中，骨料表面的富硅液相有助于吸收钾蒸气并进一步形成更多液相，附着在骨料表面，阻止钾蒸气的渗透，提高了材料的抗碱侵蚀能力。
Preparation method of natural high-alumina refractory material for producing high-alumina vanadine
一种天然产高铝钒土的高铝质耐火材料制备方法
JIANG JIE (author) / RUAN HEPING (author)
2021-06-04
Patent
Electronic Resource
Chinese
Amorphous high-alumina refractory material and preparation method thereof
| European Patent Office | 2020
High-alumina refractory brick and preparation method thereof
| European Patent Office | 2020
High-alumina plastic refractory and preparation method thereof
| European Patent Office | 2015