矿产保护与利用2024，Vol.44Issue(2)：11-21,11.DOI:10.13779/j.cnki.issn1001-0076.2024.02.002
基于响应面法的煤矸石充填料浆流变特性实验研究
Experimental Study on Rheological Properties of Coal Gangue Slurry Based on Response Surface Method
摘要
Abstract
To ensure the gangue slurry met the process requirements for pipeline transportation,its fluidity had been studied.Coal gangue from the Yulin Yuandatan mine had been prepared into slurries with different mass fractions for conducting rheological characteristic experiments.The Box-Behnken Design test and response surface method had been utilized to analyze the influence of three factors:the gangue solid mass fraction,particle gradation,and resting time on the rheological characteristics of the gangue filling slurry.The optimal gangue slurry ratio that had been derived from the experimental analysis was as follows:a 72%mass fraction of solids,with the particle gradation consisting of 30%in the range of 4.75～1.18 mm,40%in the range of 1.18～0.425 mm,10%in the range of 0.425～0.075 mm,and 20%less than 0.075 mm.The yield shear stress of the slurry had ranged from 103.02 to 131.645 Pa,and the plastic viscosity had ranged from 0.54 to 0.64 Pa·s.It had been observed that with the increase in the static time of the solid material settlement,the increase in this ratio was minimal.关键词
煤矸石浆体/流变特性/配合比/响应面法Key words
coal gauge filling slurry/rheological property/mix proportion/response surface method分类
矿业与冶金引用本文复制引用
孙凯华,胡彦飞,赵旭..基于响应面法的煤矸石充填料浆流变特性实验研究[J].矿产保护与利用,2024,44(2):11-21,11.基金项目
中国煤炭科工集团有限公司重点项目(2022-2-ZD004 （）
2023-TD-ZD004) （）
