云南冶金2026，Vol.55Issue(3)：15-19,5.
胶结充填采场供矿点氨气来源分析与防治技术应用
Analysis on Ammonia Sources and Application of Prevention & Control Technologies at Ore Feeding Points in Cemented Backfill Stopes
吴需 1李忠周 1熊志朋2
作者信息
- 1. 凉山矿业股份有限公司,四川 会理 615146
- 2. 昆明冶金研究院有限公司,云南 昆明 650031
- 折叠
摘要
Abstract
In view of the problem that high ammonia concentration at ore feeding points in underground cemented backfill stopes of a copper mine affects ore supply and operation,this paper analyzes the sources of ammonia gas and puts forward corresponding prevention and control technologies.Field simulation tests were carried out to confirm that ammonia gas is mainly generated by the reaction between granular explosives used in mining and cement for cemented backfilling.Considering the actual on-site conditions that explosives are prone to contact with cement during mining and the generated ammonia gas is difficult to eliminate,targeted technical prevention and control measures including precise medium-hole construction,blasting control,concentration dilution and personal protection were proposed and applied on site.After field application,the ammonia concentration and its impact on on-site operations are greatly reduced.The research results can provide a reference for ammonia prevention and control in mines encountering ammonia hazards during underground mining.关键词
胶结充填/氨气来源/粒状炸药/胶结材料/气体防治Key words
cemented backfilling/source of ammonia/granular explosives/cementitious material/gas prevention and control分类
矿业与冶金引用本文复制引用
吴需,李忠周,熊志朋..胶结充填采场供矿点氨气来源分析与防治技术应用[J].云南冶金,2026,55(3):15-19,5.
