基于倾斜管实验的膏体自流输送规律  

Gravity transport law of paste based on inclined pipe experiment

作　　者：李公成[1,2] 王洪江[1,2] 吴爱祥[1,2] 于少峰[1,2] 陈辉[1,2] 王晓宁[1,2] 严庆文 

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

出　　处：《中国有色金属学报》2014年第12期3162-3168,3166-3169,共7页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金资助项目(51374034;51304011);国家"十二五"科技支撑计划项目(2012BAB08B02)

摘　　要：采用自制的倾斜管实验装置,利用4因素6水平均匀设计方案,通过回归分析得到各因素对膏体料浆流变参数的影响规律;从充填倍线角度出发,分析膏体料浆流变参数和自流输送的规律,并建立最大允许充填倍线与流变参数模型。针对云南某铅锌矿实际充填情况,得到料浆质量分数为77%~80%时,其最大允许充填倍线分别为10.83、6.49、5.00和4.12,此结果能为井下不同位置采空区选择不同质量分数的膏体料浆提供理论依据。A four-factor of six-level uniform design scheme was used on the basis of a self-made inclined pipe experimental device. Affecting laws between each factor and rheological parameters for paste slurry were got by regression analysis. Laws of rheological parameters for paste slurry and gravity transport were analyzed, and then the models between the maximum stowing gradient and rheological parameters were established. According to the real filling conditions of a certain Pb＆Zn mine in Yunnan Province, China, when the mass fraction of slurry is from 77%to 80%, its maximum filling times lines are 10.83, 6.49, 5.00 and 4.12, respectively. These results provide theoretical basis for determining mass fraction of paste slurry in different underground goafs.

关 键 词：倾斜管 屈服应力 塑性黏度 充填倍线 自流输送 

分 类 号：TD861[矿业工程—金属矿开采]