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通过负压差移动床立管中料面高度对散体颗粒通过其下方连接的锥形料斗流落特征影响的研究，结果表明：当锥形料斗的半锥角不大于10．2°及料面高度大于0．30m时，立管中料面高度对散体颗粒流落时的流区特征、压力波动特征和散体颗粒平均质量流率等影响甚微；而当料面高度不大于0．30m时．料斗中压力波动强度减小。当锥形料斗的半锥角大于10．2°，无论立管中料面高度为0．55m还是0．30m，散体颗粒流落特征满足压力控制区，而立管中料面高度为1．65m时，散体颗粒流落时出现气泡控制区特征。
Through the research on the influence of the material height in the moving bed stand pipe on the flow characteristics of the conical hopper connected by the lower particles, the results show that when the half cone angle of the conical hopper is less than 10.2 ° and the material surface When the height is more than 0.30m, the height of the material in the riser has little effect on the characteristics of flow area, pressure fluctuation and the average mass flow rate of the granular particles when the particles fall. When the height of the material surface is not more than 0.30m Time. The pressure fluctuation intensity in the hopper is reduced. When the half cone angle of the cone hopper is greater than 10.2 °, regardless of whether the height of the material in the standpipe is 0.55m or 0.30m, the characteristics of the flow of the granular material meet the pressure control zone while the height of the material in the standpipe is 1.65m Bubble control zone features appear when the particles fall apart.