CAJ | 학술논문

固体充填采煤所用的矸石与粉煤灰充填散料，是通过大孔径垂直管道输送系统从地面输送到井下，本文以大孔径管道垂直投料井中充填散料为研究对象，运用气固两相流对充填料进行综合受力分析，初步得出了充填料在投料井中的运动规律及相关理论计算，分析了其流动形态并建立了数学模型，推算了其最大流速，对充填散料垂直投料系统设计具有一定的理论指导意义。
고체충전채매소용적안석여분매회충전산료，시통과대공경수직관도수송계통종지면수송도정하，본문이대공경관도수직투료정중충전산료위연구대상，운용기고량상류대충전료진행종합수력분석，초보득출료충전료재투료정중적운동규률급상관이론계산，분석료기류동형태병건립료수학모형，추산료기최대류속，대충전산료수직투료계통설계구유일정적이론지도의의。
Waste rock, used in coal mining of solid filling and filling bulk materia of fly ash, are transported down the well from ground through transporting system of large aperture vertical line. This paper takes filling bulk materia thrown vertically in wells of large aperture line as the objects of study, analyzes forces of filling materia comprehensively with gas - solid two - phase flow, obtains primarily the motion law and the relevant theory calculation of filling materia in wells used for materia throwing, analyzes its flow shape and builds its math model, deduces its max flow velocity. This paper plays a certain theoretical guiding role in the design of vertical filling bulk materia throwing system.