Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing baking-free brick from harmless aluminum ash and baking-free brick
The invention relates to the field of solid waste recycling, in particular to a method for preparing a baking-free brick from harmless aluminum ash and the baking-free brick. The method comprises the steps that harmless aluminum ash is ground and then screened, and a first aluminum-based raw material is obtained; performing microwave activation on the first aluminum-based raw material to obtain a second aluminum-based raw material; carrying out acid liquor excitation on the second aluminum-based raw material by adopting acid liquor to obtain a third aluminum-based raw material; mixing a third aluminum-based raw material, an inorganic cementing material, aggregate, a water reducing agent and water to obtain a grouting material; the grouting material is subjected to die-filling shaping and post-treatment, and the baking-free brick is obtained. According to the method, the first aluminum-based raw material is screened out in a grinding and screening mode, then energy is provided for the first aluminum-based raw material through microwave activation, the activation energy of subsequent reaction is reduced, effective components in the harmless aluminum ash slag can be converted into an aluminum salt adhesive more easily in the subsequent acid liquor excitation process, the physical performance of the aluminum-based baking-free brick can be optimized, and the service life of the baking-free brick is prolonged. And high-value utilization of solid waste is realized.
本申请涉及固体废弃物回收利用领域，尤其涉及一种无害化铝灰渣制备免烧砖的方法、免烧砖；所述方法包括：对无害化铝灰渣进行研磨，后进行筛分，得到第一铝基原料；对第一铝基原料进行微波活化，得到第二铝基原料；采用酸液对第二铝基原料进行酸液激发，得到第三铝基原料；混合第三铝基原料、无机胶凝材料、骨料、减水剂和水，得到灌浆料；对灌浆料进行装模定型和后处理，得到免烧砖；先通过研磨筛分的方式筛选出第一铝基原料，再通过微波活化为第一铝基原料提供能量，并降低后续反应的活化能，在后续酸液激发过程中可以使得无害化铝灰渣中有效成分更容易转变为铝盐胶黏剂，可以优化铝基免烧砖的物理性能，并实现固废的高价值化利用。
Method for preparing baking-free brick from harmless aluminum ash and baking-free brick
The invention relates to the field of solid waste recycling, in particular to a method for preparing a baking-free brick from harmless aluminum ash and the baking-free brick. The method comprises the steps that harmless aluminum ash is ground and then screened, and a first aluminum-based raw material is obtained; performing microwave activation on the first aluminum-based raw material to obtain a second aluminum-based raw material; carrying out acid liquor excitation on the second aluminum-based raw material by adopting acid liquor to obtain a third aluminum-based raw material; mixing a third aluminum-based raw material, an inorganic cementing material, aggregate, a water reducing agent and water to obtain a grouting material; the grouting material is subjected to die-filling shaping and post-treatment, and the baking-free brick is obtained. According to the method, the first aluminum-based raw material is screened out in a grinding and screening mode, then energy is provided for the first aluminum-based raw material through microwave activation, the activation energy of subsequent reaction is reduced, effective components in the harmless aluminum ash slag can be converted into an aluminum salt adhesive more easily in the subsequent acid liquor excitation process, the physical performance of the aluminum-based baking-free brick can be optimized, and the service life of the baking-free brick is prolonged. And high-value utilization of solid waste is realized.
本申请涉及固体废弃物回收利用领域，尤其涉及一种无害化铝灰渣制备免烧砖的方法、免烧砖；所述方法包括：对无害化铝灰渣进行研磨，后进行筛分，得到第一铝基原料；对第一铝基原料进行微波活化，得到第二铝基原料；采用酸液对第二铝基原料进行酸液激发，得到第三铝基原料；混合第三铝基原料、无机胶凝材料、骨料、减水剂和水，得到灌浆料；对灌浆料进行装模定型和后处理，得到免烧砖；先通过研磨筛分的方式筛选出第一铝基原料，再通过微波活化为第一铝基原料提供能量，并降低后续反应的活化能，在后续酸液激发过程中可以使得无害化铝灰渣中有效成分更容易转变为铝盐胶黏剂，可以优化铝基免烧砖的物理性能，并实现固废的高价值化利用。
Method for preparing baking-free brick from harmless aluminum ash and baking-free brick
一种无害化铝灰渣制备免烧砖的方法、免烧砖
KANG ZESHUANG (Autor:in) / LI HUAXIA (Autor:in) / FAN ZEKUN (Autor:in) / LIU ZHONGKAI (Autor:in) / TIAN YE (Autor:in) / ZHANG TENGFEI (Autor:in) / SUN FENGJUAN (Autor:in) / ZHANG YANLI (Autor:in) / HE XINZHONG (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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