Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing filling material from fine tailing mixed material after high-temperature pretreatment
The invention discloses a method for preparing a filling material from a fine tailing mixed material after high-temperature pretreatment. The method is characterized by comprising the following steps: firstly, uniformly mixing fine tailings and a caking aid material, then carrying out high-temperature roasting, cooling after roasting, adding a cementing material, mixing again, and finally adding water and an accelerator for filling. The fine tailings are uniformly mixed with the caking aid material in a mass ratio of (9: 1)-(19: 1) in a dry powder state. In the step of high-temperature roasting, the temperature is set to be 400-1600 DEG C, and the roasting time is 1-2 hours. The cementing material and the mixed material are mixed according to the mass ratio of 1: 6-1: 10, water is added for stirring, and the solid mass concentration is guaranteed to be 60%-70%. According to the invention, the fine tailings and the sintering aid material are mixed and roasted at high temperature for pretreatment, so that the strength of the prepared filling material is obviously improved, and the fine tailings can be utilized to a great extent for backfilling during mining.
本发明公开了一种细尾砂混合材料高温预处理后制备充填材料的制备方法。其特征在于：先将细尾砂和助结材料混合均匀，然后进行高温焙烧，焙烧完成后待冷却加入胶固材料再次混合，最后加水和速凝剂进行充填。所述细尾砂以干粉状态与助结材料按质量比9：1~19：1混合均匀。所述高温焙烧，将温度设置在400°~1600°之间，焙烧时间为1~2小时。所述胶固材料与混合材料按质量比1：6~1：10混合，加入水搅拌，保证固体质量浓度在60%~70%。本发明通过将细尾砂与助结材料混合高温焙烧做预处理，制成的充填材料强度提升明显，在采矿时能够极大程度的利用细尾砂进行回填。
Method for preparing filling material from fine tailing mixed material after high-temperature pretreatment
The invention discloses a method for preparing a filling material from a fine tailing mixed material after high-temperature pretreatment. The method is characterized by comprising the following steps: firstly, uniformly mixing fine tailings and a caking aid material, then carrying out high-temperature roasting, cooling after roasting, adding a cementing material, mixing again, and finally adding water and an accelerator for filling. The fine tailings are uniformly mixed with the caking aid material in a mass ratio of (9: 1)-(19: 1) in a dry powder state. In the step of high-temperature roasting, the temperature is set to be 400-1600 DEG C, and the roasting time is 1-2 hours. The cementing material and the mixed material are mixed according to the mass ratio of 1: 6-1: 10, water is added for stirring, and the solid mass concentration is guaranteed to be 60%-70%. According to the invention, the fine tailings and the sintering aid material are mixed and roasted at high temperature for pretreatment, so that the strength of the prepared filling material is obviously improved, and the fine tailings can be utilized to a great extent for backfilling during mining.
本发明公开了一种细尾砂混合材料高温预处理后制备充填材料的制备方法。其特征在于：先将细尾砂和助结材料混合均匀，然后进行高温焙烧，焙烧完成后待冷却加入胶固材料再次混合，最后加水和速凝剂进行充填。所述细尾砂以干粉状态与助结材料按质量比9：1~19：1混合均匀。所述高温焙烧，将温度设置在400°~1600°之间，焙烧时间为1~2小时。所述胶固材料与混合材料按质量比1：6~1：10混合，加入水搅拌，保证固体质量浓度在60%~70%。本发明通过将细尾砂与助结材料混合高温焙烧做预处理，制成的充填材料强度提升明显，在采矿时能够极大程度的利用细尾砂进行回填。
Method for preparing filling material from fine tailing mixed material after high-temperature pretreatment
一种细尾砂混合材料高温预处理后制备充填材料的制备方法
YAO NAN (Autor:in) / ZHU YUANCHENG (Autor:in) / YE YICHENG (Autor:in) / LUO WENCHONG (Autor:in) / WANG QIHU (Autor:in)
24.11.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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