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A platform for research: civil engineering, architecture and urbanism
Method for preparing tailing dam seepage guiding material from industrial solid wastes
The invention relates to the technical field of comprehensive utilization of industrial solid wastes, in particular to a method for preparing a tailing dam seepage guiding material from industrial solid wastes. The invention provides the method for preparing the tailing dam seepage guiding material from industrial solid wastes. The method comprises the following steps: mixing the industrial solid wastes, a binder and water, and sequentially carrying out ball pressing granulation, dehydration treatment, preheating, sintering and annealing to obtain the tailing dam seepage guiding material. The industrial solid wastes comprise at least two of blast furnace fly ash, industrial iron slag, coal gangue, industrial waste salt and lead-zinc slag. According to the record of the embodiment, the compressive strength of the prepared tailing dam seepage guiding material is larger than or equal to 15 MPa, the material has good acid and alkali resistance (the dissolution loss rate of weak acid and weak base is smaller than or equal to 0.21%, and the leaching rate of heavy metal is smaller than or equal to 0.0006 mg/L), the use loss rate is smaller than or equal to 0.8%, and the cost is low (the cost is about 1/10 of that of a same organic seepage guiding material).
本发明涉及工业固废综合利用技术领域，尤其涉及一种以工业固废制备尾矿坝导渗材料的方法。本发明提供了一种以工业固废制备尾矿坝导渗材料的方法，包括以下步骤：将工业固废、粘结剂和水混合后，依次进行压球造粒、脱水处理、预热、烧结和退火，得到尾矿坝导渗材料；所述工业固废包括高炉粉煤灰、工业铁渣、煤矸石、工业废盐和铅锌渣中的至少两种。根据实施例的记载，本发明制备得到的尾矿坝导渗材料的抗压强度≥15MPa，具有较好的耐酸碱性(弱酸弱碱的溶损率≤0.21％，重金属的浸出率≤0.0006mg/L)，使用损失率≤0.8％，成本低(成本大约是同等有机导渗材料的1/10)。
Method for preparing tailing dam seepage guiding material from industrial solid wastes
The invention relates to the technical field of comprehensive utilization of industrial solid wastes, in particular to a method for preparing a tailing dam seepage guiding material from industrial solid wastes. The invention provides the method for preparing the tailing dam seepage guiding material from industrial solid wastes. The method comprises the following steps: mixing the industrial solid wastes, a binder and water, and sequentially carrying out ball pressing granulation, dehydration treatment, preheating, sintering and annealing to obtain the tailing dam seepage guiding material. The industrial solid wastes comprise at least two of blast furnace fly ash, industrial iron slag, coal gangue, industrial waste salt and lead-zinc slag. According to the record of the embodiment, the compressive strength of the prepared tailing dam seepage guiding material is larger than or equal to 15 MPa, the material has good acid and alkali resistance (the dissolution loss rate of weak acid and weak base is smaller than or equal to 0.21%, and the leaching rate of heavy metal is smaller than or equal to 0.0006 mg/L), the use loss rate is smaller than or equal to 0.8%, and the cost is low (the cost is about 1/10 of that of a same organic seepage guiding material).
本发明涉及工业固废综合利用技术领域，尤其涉及一种以工业固废制备尾矿坝导渗材料的方法。本发明提供了一种以工业固废制备尾矿坝导渗材料的方法，包括以下步骤：将工业固废、粘结剂和水混合后，依次进行压球造粒、脱水处理、预热、烧结和退火，得到尾矿坝导渗材料；所述工业固废包括高炉粉煤灰、工业铁渣、煤矸石、工业废盐和铅锌渣中的至少两种。根据实施例的记载，本发明制备得到的尾矿坝导渗材料的抗压强度≥15MPa，具有较好的耐酸碱性(弱酸弱碱的溶损率≤0.21％，重金属的浸出率≤0.0006mg/L)，使用损失率≤0.8％，成本低(成本大约是同等有机导渗材料的1/10)。
Method for preparing tailing dam seepage guiding material from industrial solid wastes
一种以工业固废制备尾矿坝导渗材料的方法
ZHAI HONGWEI (author) / REN XIUFENG (author) / ZENG JINBO (author) / NIE DONGHONG (author) / LIU FANG (author)
2021-09-24
Patent
Electronic Resource
Chinese