超深井长距离充填管道冲洗水用量计算模型  

Washing Water Calculation Model of Long-Distance of Ultra-Deep Shaft Filling Pipe

作　　者：白龙剑 王胜开 王勇兵 王洪江[1,2] 严庆文 茶强华 BAI Longjian;WANG Shengkai;WANG Yongbing;WANG Hongjiang;YAN Qingwen;CHA Qianghua(School of Civil and Resources Engineering,University of Science and Technology Beijing,Beijing 100083,China;Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines,Beijing 100083,China;Yunan Chihong Zn&Ge Co.,Ltd.,Qujing,Yunnan 654212,China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]金属矿山高效开采与安全教育部重点实验室,北京100083 [3]云南驰宏锌锗股份有限公司,云南曲靖市654212

出　　处：《矿业研究与开发》2024年第6期181-188,共8页Mining Research and Development

基　　金：国家自然科学基金重点项目(51834001)。

摘　　要：清洁的充填管道不仅可以降低膏体输送的沿程阻力,还能够避免管道堵塞事故的发生。为了研究管道长度、充填倍线、洗管水流量和料浆质量分数对洗管水用量的影响规律,采用自制的充填管道清洗试验装置开展了管道清洗试验。结果表明:洗管水用量与被冲洗管道体积之间存在比例系数I,I为0.87~1.60。洗管水用量随管道长度的增加呈线性增长,随充填倍线的增加呈幂函数增长,随流量的增加呈幂函数降低,随料浆质量分数的增加呈线性减小。洗管水流速存在一临界值,此时洗管水对管内残余膏体的剪应力等于其屈服应力,洗管水由层流转换为湍流。基于比例系数I将模型试验构建的洗管水用量计算模型扩展到工业原型,并利用实测数据验证了该模型的可靠性,洗管水预测误差小于10%。Clean filling pipe can not only reduce the resistance along the paste transportation,but also avoid the occurrence of pipe blockage accident.In order to study the influence of pipe length,filling gradient,flow quantity and slurry mass fraction on the amount of pipe washing water,a self-made filling pipe cleaning test device was used to carry out pipe cleaning test.The results show that there is a proportional coefficient I between the amount of pipe washing water and the volume of the washed pipe,which is 0.87-1.60.The amount of pipe washing water increases linearly with the increase of pipe length,increases in power function with the increase of filling gradient,decreases in power function with the increase of flow quantity,and decreases linearly with the increase of slurry mass fraction.There is a critical value for the flow rate of pipe washing water.When the shear stress of pipe washing water on the residual paste in the pipe is equal to its yield stress,the washing water is converted from laminar flow to turbulent flow.Based on the proportional coefficient I,the pipe washing water consumption calculation model constructed by the model test was extended to the industrial prototype,and the reliability of the model was verified by the measured data.The prediction error of pipe washing water is less than 10%.

关 键 词：洗管水用量 充填管道 管道清洗 计算模型 临界流速 

分 类 号：TD853.34[矿业工程—金属矿开采] TD218[矿业工程—矿山开采]