CAJ | 학술논문

针对矿山充填系统设计中输送物料的合理配比、管道参数难以确定的问题，采用国际最先进的高精度BROOKFIELD R／S＋SST软固体测试仪，通过试验得到不同组别料浆的剪切率‐剪切应力流变曲线图，进而求得料浆相应粘度系数η和动态屈服应力τ0，再根据浆体沿程阻力损失计算公式分别计算出不同流量料浆在不同的管径输送时的沿程阻力损失。结果表明，灰砂比1∶4、浓度70％的料浆以流量90m3／h在管径D3＝180mm输送时的单位沿程阻力值最小，其值为471．968Pa／m ，可为矿山充填系统的设计提供依据。
침대광산충전계통설계중수송물료적합리배비、관도삼수난이학정적문제，채용국제최선진적고정도BROOKFIELD R／S＋SST연고체측시의，통과시험득도불동조별료장적전절솔‐전절응력류변곡선도，진이구득료장상응점도계수η화동태굴복응력τ0，재근거장체연정조력손실계산공식분별계산출불동류량료장재불동적관경수송시적연정조력손실。결과표명，회사비1∶4、농도70％적료장이류량90m3／h재관경D3＝180mm수송시적단위연정조력치최소，기치위471．968Pa／m ，가위광산충전계통적설계제공의거。
In light of the problems that it is difficult to determine the reasonable material proportions and pipeline transportation parameters in the design of mine filling system .This paper adopt the most advanced high‐precision BROOKFIELD R/S + SST soft‐solid tester and obtain shear rate‐shear stress rheological curve of different groups of slurry by experiment ,then gain the viscosity coefficient ηand yield stress τ0 of the different groups of slurry and calculate the frictional resistance of different flow slurry delivering in the pipeline of different diameters according to the formula of slurry frictional resistance loss . The results show that the slurry of Contrast 1∶4 and the concentration 70% transport in the pipeline of diameter D3 =180mm at the flow rate of 90m3/h ,the unit resistance loss in Pipeline Transportation is least , The value is 471 .968Pa/m ,which can provide the basis for the design of mine filling system .