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Cementing material for lead-zinc slag mine filling, preparation method, filling body and application
The invention discloses a cementing material for lead-zinc slag mine filling, and relates to the technical field of mine filling, the cementing material comprises the following components by weight: 40-50 parts of blast furnace slag micro powder, 40-50 parts of desulfurized gypsum, 3-5 parts of cement clinker, 4-6 parts of fly ash, and 1 part of a gypsum activator. The preparation method of the cementing material comprises the following steps: S1, drying; s2, grinding; and S3, mixing to obtain the cementing material. The filling body is formed by compounding fine tailings and the cementing material according to the cement-sand ratio of 1: 6. The filling body is applied to the technical field of lead-zinc slag mine filling. According to the cementing material, the desulfurized gypsum powder is selected to replace part of natural gypsum, so that the production cost of the cementing material is reduced, then the dewatered gypsum is modified into the semi-hydrated gypsum by utilizing the phase property of the high-temperature modified desulfurized gypsum, and the early strength and segregation resistance of the cementing material are remarkably improved by utilizing the water absorption and quick-setting property of the semi-hydrated gypsum.
本申请公开了一种铅锌渣矿山充填用胶凝材料，涉及矿山充填技术领域，包括以下按重量份数计的组分：高炉矿渣微粉40～50份、脱硫石膏40～50份、水泥熟料3～5份、粉煤灰4～6份以及石膏激发剂1份。提供上述胶凝材料的制备方法，包括S1、干燥；S2、研磨；S3、混合得到胶凝材料。一种充填体，由细尾砂与上述胶凝材料按照灰砂比1:6进行复配。所述充填体在铅锌渣矿山充填技术领域的应用。本申请的胶凝材料选择脱硫石膏粉替代部分天然石膏，降低了胶凝材料的生产成本，其次利用高温改性脱硫石膏相性，将脱水石膏改性为半水石膏，利用半水石膏的吸水性和速凝性显著提高胶凝材料的早强性以及抗离析能力。
Cementing material for lead-zinc slag mine filling, preparation method, filling body and application
The invention discloses a cementing material for lead-zinc slag mine filling, and relates to the technical field of mine filling, the cementing material comprises the following components by weight: 40-50 parts of blast furnace slag micro powder, 40-50 parts of desulfurized gypsum, 3-5 parts of cement clinker, 4-6 parts of fly ash, and 1 part of a gypsum activator. The preparation method of the cementing material comprises the following steps: S1, drying; s2, grinding; and S3, mixing to obtain the cementing material. The filling body is formed by compounding fine tailings and the cementing material according to the cement-sand ratio of 1: 6. The filling body is applied to the technical field of lead-zinc slag mine filling. According to the cementing material, the desulfurized gypsum powder is selected to replace part of natural gypsum, so that the production cost of the cementing material is reduced, then the dewatered gypsum is modified into the semi-hydrated gypsum by utilizing the phase property of the high-temperature modified desulfurized gypsum, and the early strength and segregation resistance of the cementing material are remarkably improved by utilizing the water absorption and quick-setting property of the semi-hydrated gypsum.
本申请公开了一种铅锌渣矿山充填用胶凝材料，涉及矿山充填技术领域，包括以下按重量份数计的组分：高炉矿渣微粉40～50份、脱硫石膏40～50份、水泥熟料3～5份、粉煤灰4～6份以及石膏激发剂1份。提供上述胶凝材料的制备方法，包括S1、干燥；S2、研磨；S3、混合得到胶凝材料。一种充填体，由细尾砂与上述胶凝材料按照灰砂比1:6进行复配。所述充填体在铅锌渣矿山充填技术领域的应用。本申请的胶凝材料选择脱硫石膏粉替代部分天然石膏，降低了胶凝材料的生产成本，其次利用高温改性脱硫石膏相性，将脱水石膏改性为半水石膏，利用半水石膏的吸水性和速凝性显著提高胶凝材料的早强性以及抗离析能力。
Cementing material for lead-zinc slag mine filling, preparation method, filling body and application
铅锌渣矿山充填用胶凝材料、制备方法、充填体及应用
CHEN GUIBIN (author) / WANG YU (author) / FAN HOULIANG (author) / REN JUNKUN (author) / YAO QIAN (author)
2024-09-06
Patent
Electronic Resource
Chinese
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