红土岭黄金尾矿工艺矿物学特征及制砖试验研究  

Technological Mineralogical Characteristics and Experimental Study on Brick Making of Hongtuling Gold Tailings

作　　者：高晓杰 马骁 张恒博 GAO Xiaojie;MA Xiao;ZHANG Hengbo(Henan Academy of Geology,Zhengzhou 450016,Henan,China;Ministry of Natural Resources Zhongyuan Urban Agglomeration Multi element Urban Geological Big Data Engineering Technology Innovation Center,Zhengzhou 450016,Henan,China;The First Geological Brigade of Henan Nonferrous Metals Geology and Mineral Resources Bureau,Zhengzhou 450016,Henan,China)

机构地区：[1]河南省地质研究院,河南郑州450016 [2]自然资源部中原城市群多要素城市地质大数据工程技术创新中心,河南郑州450016 [3]河南省有色金属地质矿产局第一地质大队,河南郑州450016

出　　处：《中国钼业》2023年第5期42-47,共6页China Molybdenum Industry

基　　金：2022年度河南省重点研发项目“基于人工智能的矿产资源高效预测评价技术(221111320600)”;河南省自然科研项目(豫自然资函[2019]373号-5)。

摘　　要：为了探索红土岭黄金尾矿的综合利用方法,以工艺矿物学特征为基础,通过烧结砖和免蒸免烧砖试验,研究了制砖工艺流程和工艺条件对黄金尾矿制砖的影响。研究结果表明:红土岭黄金尾矿成分及粒度适宜制砖;制备烧结砖最佳工艺条件为膨润土占比15%、成型水分7%、成型压力15 MPa、升温速率为10℃/min,烧成终温1050℃,保温时间为2 h,由此条件制备的烧结砖至少达到MU25,严重风化地区级别;免蒸免烧砖最佳工艺条件组合为成型压力为25.0 MPa、成型水分为13.0%、水泥配比为20.0%,各因素对试样抗压强度影响程度依次为水泥配比、成型压力、成型水分。In order to explore the comprehensive utilization method of gold tailings in Hongtuling,the influence of brick making process and conditions on the brick making of gold tailings was studied by sintered brick and steam-free and burn-free brick test based on process mineralogical characteristics.The results show that:the composition and particle size of gold tailings from Hongtuling are suitable for brick making;the optimum process conditions for preparing sintered bricks is 15%bentonite,7%forming moisture,15 MPa forming pressure,10℃/min heating rate,1050℃firing final temperature and 2 h holding time,and the sintered bricks prepared under these conditions reach at least MU25,the level of severe weathering area;the combination of optimum process conditions for non-fired and non-steamed bricks is the forming pressure combination of process conditions is of 25.0 MPa,13.0%forming moisture,20.0%cement ratio,and the degree of influence of each factor on the compressive strength of the specimen in the order of cement ratio,forming pressure,and forming moisture.

关 键 词：黄金尾矿 工艺矿物学 烧结砖 免蒸免烧砖 

分 类 号：TD926.42[矿业工程—选矿]