摘要
在全尾砂膏体料浆管道输送技术中,合理输送管道参数的确定是确保其安全、可靠输送的核心。本项目以某大型铜矿山为研究对象,设计采用全尾砂膏体料浆管道输送;针对其输送流量大、管道输送阻力大等技术难题,以尾矿基础参数测试结果为基础,开展了全尾砂膏体料浆高效浓缩试验及料浆流变试验,根据试验结果推荐输送浓度为60%~65%;同时按照刘德忠公式及管道复合流态摩阻损失数学计算模型,计算分析了全尾砂膏体料浆管道输送临界流速与摩阻损失等关键工艺技术参数;最终根据矿山生产参数,确定了管道输送方案及参数,即在日生产尾矿量为58000 t(干量)条件下,推荐全尾砂膏体料浆输送最佳浓度为60%~65%,推荐采用单条管线输送,输送工作流速为1.85~2.12 m/s,对应输送管径为650 mm。
In the whole tailings paste slurry pipeline transportation technology,the determination of reasonable pipeline parameters is the core to ensure its safe and reliable transportation.Taking a large-scale copper mine as a case,the whole-tailings paste slurry pipeline transportation was designed.Aiming at the technical problems such as high transportation flow and large pipeline transportation resistance,and based on the test results of basic parameters of tailings,the high-efficiency concentration test and slurry rheological test of whole tailings paste slurry are carried out.According to the test results,the transportation concentration is recommended to be 60%~65%;At the same time,according to Liu Dezhong’s formula and the mathematical calculation model of pipeline compound flow friction loss,the critical flow velocity and friction loss and other key technical parameters are calculated and analyzed;Finally,according to the mine production parameters,the pipeline transportation scheme and parameters are determined,that is,under the condition that the daily production of tailings is 58000 t(dry),it is recommended that the optimal transportation concentration of whole tailings slurry paste is60%~65%.Single pipeline transportation is proposed,with the transportation flow rate of 1.85-2.12 m/s and the corresponding transportation pipe diameter of 650 mm.
作者
杨超
郭利杰
李文臣
Yang Chao;Guo Lijie;Li Wenchen(BGRIMM Technology Group,Beijing 102628,China;National Centre for International Research on Green Metal Mining,Beijing 102628,China)
出处
《金属矿山》
CAS
北大核心
2020年第8期55-60,共6页
Metal Mine
基金
国家重点研发计划项目(编号:2017YFC0602903)。
关键词
全尾砂膏体
管道输送
阻力计算
大流量
临界流速
Whole tailings paste
Pipeline transportation
Resistance calculation
Large flow rate
Critical velocity
作者简介
杨超(1983-),男,高级工程师;通讯作者:郭利杰(1980-),男,教授,博士。
