补连塔煤矿膏体充填环管输送试验研究  

Experimental Study on the Transportation of Paste Filling Ring Pipe in Bulianta Coal Mine

作　　者：田银素 朱阳亚 黄振华 Tian Yinsu;Zhu Yangya;Huang Zhenhua(China Shenhua Energy Co.,Ltd.Shendong Coal Branch Company,Shaanxi Yulin 719000;Feiyi Co.,Ltd.,Hunan Changsha 410625)

机构地区：[1]中国神华能源股份有限公司神东煤炭分公司,陕西榆林719000 [2]飞翼股份有限公司,湖南长沙410625

出　　处：《山东煤炭科技》2024年第8期185-190,共6页Shandong Coal Science and Technology

摘　　要：针对补连塔煤矿料浆阻力特征不明确且输送困难的问题,采用工业级环管试验系统,对不同浓度及流速下的直管与弯管阻力特征进行了研究,并基于宾汉塑性流体模型对不同工况下的剪切力与黏性系数进行了回归拟合与分析。结果表明,直管段与弯管段压力损失均随料浆浓度与输送流速的提高而变大,且料浆浓度因素对弯管段压力损失作用更为显著,整体上弯管段单位压力损失为直管段的12.9~17.8倍。回归分析表明,宾汉塑性流体模型适应性好,剪切力为41.50~50.01Pa,黏性系数为0.203~0.225Pa·s。In view of the problem of unclear resistance characteristics and difficult transportation of material slurry in Bulianta Coal Mine,an industrial grade ring pipe test system is used to study the resistance characteristics of straight pipes and curved pipes under different concentrations and flow rates.Based on the Bingham plastic fluid model,regression fitting and analysis are carried out on the shear force and viscosity coefficient under different working conditions.The results show that the pressure loss in both the straight pipe and curved pipe sections increases with the increase of material slurry concentration and transportation flow rate,and the material slurry concentration factor has a more significant impact on the pressure loss in the curved pipe section.Overall,the unit pressure loss in the curved pipe section is 12.9-17.8 times than that of the straight pipe section.The regression analysis shows that the Bingham plastic fluid model has good adaptability,with shear forces of 41.50-50.01 Pa and viscosity coefficients of 0.203-0.225 Pa·s.

关 键 词：膏体充填 环管试验 压力损失 

分 类 号：TD823.7[矿业工程—煤矿开采]