Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation and use method of refractory castable sol binder for kiln
The invention discloses a preparation and use method of a refractory castable sol binder for a kiln, magnesium-aluminum-chromium composite sol is prepared from magnesium nitrate, aluminum nitrate, chromic nitrate and citric acid, and the magnesium-aluminum-chromium composite sol is used as the sol binder of the castable. The magnesium-aluminum-chromium composite sol can improve the purity of the castable and reduce impurities; a three-dimensional net-shaped structure is formed in a manner of connecting with the castable through a branched chain, so that strength and volume stability are provided for a castable matrix; the sintered sol generates nano magnesium aluminate spinel, and the high surface energy of nano particles can provide power for atomic diffusion in the sintering process, so that the sintering temperature of the castable can be reduced; as no hydrate is generated in the sol-bonded castable, the medium-temperature strength of the sol-bonded castable is higher than that of a cement-bonded castable, and no burst phenomenon occurs in the sintering process.
本申请公开了一种窑炉用耐火浇注料溶胶结合剂的制备和使用方法，通过硝酸镁、硝酸铝、硝酸铬和柠檬酸制得镁铝铬复合溶胶，将该镁铝铬复合溶胶作为浇注料的溶胶结合剂使用。该镁铝铬复合溶胶能够提高浇注料的纯度，减少杂质；与浇注料以支状链连接在一起的方式，形成三维网状结构为浇注料基体提供强度和体积稳定性；经过烧结之后的溶胶生成了纳米镁铝尖晶石，纳米颗粒的高表面能能够为烧结过程中的原子扩散提供动力，能够降低浇注料的烧结温度；由于溶胶结合浇注料没有水化物的生成，相较于水泥结合浇注料的中温强度增高，烧结过程中也不会发生爆裂现象。
Preparation and use method of refractory castable sol binder for kiln
The invention discloses a preparation and use method of a refractory castable sol binder for a kiln, magnesium-aluminum-chromium composite sol is prepared from magnesium nitrate, aluminum nitrate, chromic nitrate and citric acid, and the magnesium-aluminum-chromium composite sol is used as the sol binder of the castable. The magnesium-aluminum-chromium composite sol can improve the purity of the castable and reduce impurities; a three-dimensional net-shaped structure is formed in a manner of connecting with the castable through a branched chain, so that strength and volume stability are provided for a castable matrix; the sintered sol generates nano magnesium aluminate spinel, and the high surface energy of nano particles can provide power for atomic diffusion in the sintering process, so that the sintering temperature of the castable can be reduced; as no hydrate is generated in the sol-bonded castable, the medium-temperature strength of the sol-bonded castable is higher than that of a cement-bonded castable, and no burst phenomenon occurs in the sintering process.
本申请公开了一种窑炉用耐火浇注料溶胶结合剂的制备和使用方法，通过硝酸镁、硝酸铝、硝酸铬和柠檬酸制得镁铝铬复合溶胶，将该镁铝铬复合溶胶作为浇注料的溶胶结合剂使用。该镁铝铬复合溶胶能够提高浇注料的纯度，减少杂质；与浇注料以支状链连接在一起的方式，形成三维网状结构为浇注料基体提供强度和体积稳定性；经过烧结之后的溶胶生成了纳米镁铝尖晶石，纳米颗粒的高表面能能够为烧结过程中的原子扩散提供动力，能够降低浇注料的烧结温度；由于溶胶结合浇注料没有水化物的生成，相较于水泥结合浇注料的中温强度增高，烧结过程中也不会发生爆裂现象。
Preparation and use method of refractory castable sol binder for kiln
一种窑炉用耐火浇注料溶胶结合剂的制备和使用方法
KE JUN (Autor:in) / LIN SHUO (Autor:in) / SUN JIE (Autor:in) / HE ZHONGLIN (Autor:in) / HE JIANHAO (Autor:in) / HU HAO (Autor:in) / HU XUEGAN (Autor:in)
07.03.2023
Patent
Elektronische Ressource
Chinesisch
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