黑龙江科技大学学报2024，Vol.34Issue(3)：355-359,366,6.DOI:10.3969/j.issn.2095-7262.2024.03.004
不同浓度聚丙烯酰胺对石墨尾矿颗粒团聚体微观结构的影响
Effect of different concentrations of polyacrylamide on micro-structure of graphite tailings particle aggregates
摘要
Abstract
This paper attempts to address the problem of the fine particles and loose structure of the graphite tailings.The study by using the cementation method of polyacrylamide and graphite tailings par-ticles,consists of analyzing the size change of graphite tailings particles aggregate with polyacrylamide added,and studying the influence of the change of polyacrylamide concentration on the stability of graph-ite tailings particles aggregate.The results show that adding polyacrylamide with mass concentration less than 0.1%,the number of aggregates with particle size less than 0.25 mm in graphite tailings decreases significantly;the number of large aggregates bigger than 0.25 mm tends to increase with the increase of concentration of polyacrylamide,and polyacrylamide has obvious effect on improving the stability of graphite tailings particles.When the mass concentration of polyacrylamide exceeds 0.04%,the total po-rosity of graphite tailings particle aggregate gradually decreases with the increase of the mass concentration of polyacrylamide;when the mass concentration of polyacrylamide is less than 0.04%,there is obvious pore structure between the aggregates,promoting water infiltration and enhancing the water retention abil-ity of graphite tailings;when the polyacrylamide mass concentration is 0.04%,the pore structure be-tween the aggregates is most obvious and most favorable for water infiltration.关键词
石墨尾矿颗粒/聚丙烯酰胺/颗粒团聚体/微观结构Key words
graphite tailings particles/polyacrylamide/particle aggregates/micromechanism分类
矿山工程引用本文复制引用
康健,郝永生..不同浓度聚丙烯酰胺对石墨尾矿颗粒团聚体微观结构的影响[J].黑龙江科技大学学报,2024,34(3):355-359,366,6.基金项目
黑龙江省重点研发计划项目(GA23C001) （GA23C001）
