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A platform for research: civil engineering, architecture and urbanism
Electrolytic manganese residue sintered brick and preparation method thereof
The invention relates to the technical field of environmental protection, in particular to an electrolytic manganese residue sintered brick and a preparation method thereof. The preparation method comprises the following steps: preparing a green brick from electrolytic manganese residues as a raw material, drying the green brick, preheating the green brick at 300-550 DEG C, and roasting the green brick at 950-1050 DEG C to obtain the electrolytic manganese residue sintered brick. According to the method disclosed by the invention, harmful heavy metal elements in the electrolytic manganese residues are cured in a product through chemical reaction in a manner of preheating and then roasting, so that the prepared sintered brick is stable, environment-friendly and harmless in a later use process; through the treatment of preheating and then roasting, the harmful gases NH3 and SO2 can be respectively collected and recycled in the preheating and roasting processes, and meanwhile, the preheating can improve the strength of the final sintered brick, reduce the temperature required by roasting and save the energy consumption.
本发明涉及环境保护技术领域，具体涉及一种电解锰渣烧结砖及其制备方法。制备方法包括：以电解锰渣为原料制得砖坯，将所述砖坯干燥后先在300℃‑550℃下进行预热，再在950℃‑1050℃下进行焙烧，制得电解锰渣烧结砖。本发明通过先预热后焙烧的方式，将电解锰渣中的有害重金属元素通过化学反应固化在产物中，确保所制备的烧结砖在后期使用过程中是稳定且环保无害的；通过先预热后焙烧的处理，使得有害气体NH3和SO2在预热和焙烧过程中可以分别进行收集再利用，同时，预热可提高最终烧结砖的强度，降低焙烧所需温度，节省能耗。
Electrolytic manganese residue sintered brick and preparation method thereof
The invention relates to the technical field of environmental protection, in particular to an electrolytic manganese residue sintered brick and a preparation method thereof. The preparation method comprises the following steps: preparing a green brick from electrolytic manganese residues as a raw material, drying the green brick, preheating the green brick at 300-550 DEG C, and roasting the green brick at 950-1050 DEG C to obtain the electrolytic manganese residue sintered brick. According to the method disclosed by the invention, harmful heavy metal elements in the electrolytic manganese residues are cured in a product through chemical reaction in a manner of preheating and then roasting, so that the prepared sintered brick is stable, environment-friendly and harmless in a later use process; through the treatment of preheating and then roasting, the harmful gases NH3 and SO2 can be respectively collected and recycled in the preheating and roasting processes, and meanwhile, the preheating can improve the strength of the final sintered brick, reduce the temperature required by roasting and save the energy consumption.
本发明涉及环境保护技术领域，具体涉及一种电解锰渣烧结砖及其制备方法。制备方法包括：以电解锰渣为原料制得砖坯，将所述砖坯干燥后先在300℃‑550℃下进行预热，再在950℃‑1050℃下进行焙烧，制得电解锰渣烧结砖。本发明通过先预热后焙烧的方式，将电解锰渣中的有害重金属元素通过化学反应固化在产物中，确保所制备的烧结砖在后期使用过程中是稳定且环保无害的；通过先预热后焙烧的处理，使得有害气体NH3和SO2在预热和焙烧过程中可以分别进行收集再利用，同时，预热可提高最终烧结砖的强度，降低焙烧所需温度，节省能耗。
Electrolytic manganese residue sintered brick and preparation method thereof
一种电解锰渣烧结砖及其制备方法
ZHOU YOULIAN (author) / JI YUNBO (author) / HUANG LEIMING (author)
2022-09-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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