Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of cementing material for cemented filling of high-mud ultrafine-grain tailings
The invention discloses a preparation method of a cementing material for cemented filling of high-mud ultrafine-grain tailings, and relates to the technical field of building material preparation, and the preparation method comprises the following steps: S1, analyzing and preparing materials required by cemented filling; s2, preparing auxiliary materials: selecting the following components in percentage by mass: 20-30% of lime, 10-25% of gypsum, 50-60% of beneficiation waste rock and 2-4% of an exciting agent; s3, mixing the auxiliary materials in the step S2, so that the auxiliary materials are uniformly mixed; the cement filling material has the beneficial effects that the cement filling material has the advantages of being high in filling strength, good in fluidity of full-tailing slurry, good in segregation resistance, low in hydration heat, low in cost and the like, and the cement filling material has relatively high cementing capacity on fine-fraction tailings; the blast furnace slag discharged from a blast furnace during pig iron smelting can effectively change waste into valuable, the strength of the material meets the construction requirement, and environmental protection and energy conservation are fully achieved; and sodium hydroxide is adopted as an exciting agent, so that the gelation performance can be improved, and the overall strength of the material can be enhanced.
本发明公开了一种高泥超细粒尾矿胶结充填用胶凝材料制备方法，涉及建筑材料制备技术领域，包括以下步骤：S1：对胶结充填所需的材料进行分析和准备；S2：制备辅料，选取以下质量百分数的组分：20‑30%石灰、10‑25%石膏、50‑60%选矿废石、2‑4%激发剂；S3：对S2步骤中的辅料进行混合，使其混合均匀；本发明的有益效果是：该胶结充填材料具有充填强度高、全尾砂浆体的流动性好、抗离析性好、低水化热、成本低廉等诸多优点，对细粒级的尾砂有较强的胶结能力；以冶炼生铁时从高炉中排出的高炉熔渣不仅能有效变废为宝，而且使材料的强度保持施工要求，充分做到了环保、节能；采用氢氧化钠为激发剂，能够凝胶性能，并且也能够增强材料的整体强度。
Preparation method of cementing material for cemented filling of high-mud ultrafine-grain tailings
The invention discloses a preparation method of a cementing material for cemented filling of high-mud ultrafine-grain tailings, and relates to the technical field of building material preparation, and the preparation method comprises the following steps: S1, analyzing and preparing materials required by cemented filling; s2, preparing auxiliary materials: selecting the following components in percentage by mass: 20-30% of lime, 10-25% of gypsum, 50-60% of beneficiation waste rock and 2-4% of an exciting agent; s3, mixing the auxiliary materials in the step S2, so that the auxiliary materials are uniformly mixed; the cement filling material has the beneficial effects that the cement filling material has the advantages of being high in filling strength, good in fluidity of full-tailing slurry, good in segregation resistance, low in hydration heat, low in cost and the like, and the cement filling material has relatively high cementing capacity on fine-fraction tailings; the blast furnace slag discharged from a blast furnace during pig iron smelting can effectively change waste into valuable, the strength of the material meets the construction requirement, and environmental protection and energy conservation are fully achieved; and sodium hydroxide is adopted as an exciting agent, so that the gelation performance can be improved, and the overall strength of the material can be enhanced.
本发明公开了一种高泥超细粒尾矿胶结充填用胶凝材料制备方法，涉及建筑材料制备技术领域，包括以下步骤：S1：对胶结充填所需的材料进行分析和准备；S2：制备辅料，选取以下质量百分数的组分：20‑30%石灰、10‑25%石膏、50‑60%选矿废石、2‑4%激发剂；S3：对S2步骤中的辅料进行混合，使其混合均匀；本发明的有益效果是：该胶结充填材料具有充填强度高、全尾砂浆体的流动性好、抗离析性好、低水化热、成本低廉等诸多优点，对细粒级的尾砂有较强的胶结能力；以冶炼生铁时从高炉中排出的高炉熔渣不仅能有效变废为宝，而且使材料的强度保持施工要求，充分做到了环保、节能；采用氢氧化钠为激发剂，能够凝胶性能，并且也能够增强材料的整体强度。
Preparation method of cementing material for cemented filling of high-mud ultrafine-grain tailings
一种高泥超细粒尾矿胶结充填用胶凝材料制备方法
WANG ZONGSEN (Autor:in) / YANG YUN (Autor:in) / XU SHINAN (Autor:in)
21.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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