南华大学学报（自然科学版）2025，Vol.39Issue(3)：32-40,9.DOI:10.19431/j.cnki.1673-0062.2025.03.005
江西省某钨矿全尾砂充填料浆减水剂类型优选
Optimization of Water Reducing Agent Type for Full Tailings Filling Slurry of a Tungsten Mine in Jiangxi Province
邹常辉 1杨仕教 1张焕宝1
作者信息
- 1. 南华大学 资源环境与安全工程学院,湖南 衡阳 421001
- 折叠
摘要
Abstract
Four common types of water reducers—polycarboxylate(PCE),melamine-based,naphthalene-based,and calcium lignosulfonate—were initially selected.Experi-ments were conducted on the properties of full tailings filling slurry incorporating these dif-ferent water reducers at varying dosages.The influence patterns of each type of water re-ducer on the slurry's yield stress,plastic viscosity,bleeding rate,and the strength of the hardened backfill were investigated.The workability parameters of the filling slurry were comprehensively analyzed,and the optimal water reducer type and dosage were selected considering both performance and cost.The research indicates that:1)The addition of wa-ter reducers can decrease the yield stress and plastic viscosity of the full tailings filling slurry.2)An appropriate dosage of water reducer can significantly reduce the bleeding rate of the slurry,while a low dosage may instead increase it.3)The incorporation of wa-ter reducers reduces the early strength of the hardened backfill but has a relatively smaller impact on its medium-term strength;different types of water reducers affect early strength differently.4)Based on comprehensive comparison,the melamine-based water reducer at a dosage of 0.2%is the optimal choice.关键词
全尾砂/减水剂/泌水率/流变参数/早期强度Key words
full tailings/water reducing agent/water bleeding rate/rheological parameters/early strength分类
矿业与冶金引用本文复制引用
邹常辉,杨仕教,张焕宝..江西省某钨矿全尾砂充填料浆减水剂类型优选[J].南华大学学报（自然科学版）,2025,39(3):32-40,9.
