Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Carbonizable low-carbon cement clinker as well as preparation method and application thereof
The invention belongs to the technical field of dual-carbon utilization, and particularly relates to carbonizable low-carbon cement clinker as well as a preparation method and application thereof. The low-carbon cement clinker comprises the following raw materials in percentage by mass: 45-70% of limestone, 8-15% of gypsum, 15-25% of coal gangue and 0-15% of oil sludge pyrolysis slag. The preparation method comprises the following steps: step 1, weighing raw materials; 2, uniformly mixing the raw materials, and grinding to obtain a raw material; 3, adding water into the raw material, uniformly mixing, pressing and drying; and step 4, calcining and then air-cooling to room temperature. The low-carbon cement clinker obtained by the method replaces 30% of standard cement in equal proportion, the 28-day activity index of the low-carbon cement clinker is 85-95%, the low-carbon cement clinker can be used for high-activity SCM materials prepared through carbonization and used in a Portland cement system, carbon dioxide in tail gas of an industrial kiln can be used as carbonization gas, and the low-carbon cement clinker has good social benefits and economic benefits.
本发明属于双碳利用技术领域，尤其是涉及一种可碳化的低碳水泥熟料、制备方法及其应用。低碳水泥熟料其原料的质量组成包括石灰石45‑70％、石膏8‑15％、煤矸石15‑25％、油泥热解渣0‑15％。制备方法包括：步骤一、称取原料；步骤二、原料混合均匀并粉磨获得生料；步骤三、生料加水混合均匀后压制并干燥；步骤四、煅烧后风冷至室温。利用该方法获得的低碳水泥熟料等比例替代30％的基准水泥，其28天活性指数为85‑95％，可用于碳化制备的高活性SCM材料并用于硅酸盐水泥体系中，其中可以使用工业窑炉尾气中的二氧化碳作为碳化气体，具有较好的社会效益和经济效益。
Carbonizable low-carbon cement clinker as well as preparation method and application thereof
The invention belongs to the technical field of dual-carbon utilization, and particularly relates to carbonizable low-carbon cement clinker as well as a preparation method and application thereof. The low-carbon cement clinker comprises the following raw materials in percentage by mass: 45-70% of limestone, 8-15% of gypsum, 15-25% of coal gangue and 0-15% of oil sludge pyrolysis slag. The preparation method comprises the following steps: step 1, weighing raw materials; 2, uniformly mixing the raw materials, and grinding to obtain a raw material; 3, adding water into the raw material, uniformly mixing, pressing and drying; and step 4, calcining and then air-cooling to room temperature. The low-carbon cement clinker obtained by the method replaces 30% of standard cement in equal proportion, the 28-day activity index of the low-carbon cement clinker is 85-95%, the low-carbon cement clinker can be used for high-activity SCM materials prepared through carbonization and used in a Portland cement system, carbon dioxide in tail gas of an industrial kiln can be used as carbonization gas, and the low-carbon cement clinker has good social benefits and economic benefits.
本发明属于双碳利用技术领域，尤其是涉及一种可碳化的低碳水泥熟料、制备方法及其应用。低碳水泥熟料其原料的质量组成包括石灰石45‑70％、石膏8‑15％、煤矸石15‑25％、油泥热解渣0‑15％。制备方法包括：步骤一、称取原料；步骤二、原料混合均匀并粉磨获得生料；步骤三、生料加水混合均匀后压制并干燥；步骤四、煅烧后风冷至室温。利用该方法获得的低碳水泥熟料等比例替代30％的基准水泥，其28天活性指数为85‑95％，可用于碳化制备的高活性SCM材料并用于硅酸盐水泥体系中，其中可以使用工业窑炉尾气中的二氧化碳作为碳化气体，具有较好的社会效益和经济效益。
Carbonizable low-carbon cement clinker as well as preparation method and application thereof
一种可碳化的低碳水泥熟料、制备方法及其应用
HAN HUI (Autor:in) / PENG XUEPING (Autor:in) / LIU MINGHAO (Autor:in) / LIN LI (Autor:in)
16.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Low-clinker cement as well as preparation method and application thereof
| Europäisches Patentamt | 2020
Low-carbon cement clinker and preparation method thereof
| Europäisches Patentamt | 2024