A EXPERIMENTAL STUDY ON THE MECHANICS OF STATIC ARCHING IN HOPPERS AGAINST NEGATIVE PRESSURE GRADIENT

景山; 李洪钟

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A EXPERIMENTAL STUDY ON THE MECHANICS OF STATIC ARCHING IN HOPPERS AGAINST NEGATIVE PRESSURE GRADIENT

更新时间：2025-12-16

- A EXPERIMENTAL STUDY ON THE MECHANICS OF STATIC ARCHING IN HOPPERS AGAINST NEGATIVE PRESSURE GRADIENT
- CIESC Journal Issue 5, (1997)
- 作者机构：
  
  中国科学院化工冶金研究所,中国科学院化工冶金研究所北京 100080,北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： Q021
- Online First：25 October 1997，
  
  Published：25 October 1997
- 稿件说明：
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景山, 李洪钟. A EXPERIMENTAL STUDY ON THE MECHANICS OF STATIC ARCHING IN HOPPERS AGAINST NEGATIVE PRESSURE GRADIENT[J]. CIESC Journal, 1997, (5).
DOI：

景山, 李洪钟. A EXPERIMENTAL STUDY ON THE MECHANICS OF STATIC ARCHING IN HOPPERS AGAINST NEGATIVE PRESSURE GRADIENT[J]. CIESC Journal, 1997, (5). DOI：

摘要

通过实验测量散体颗粒在负压差立管料斗中的静态拱宽度

验证本文模型的正确性

并分析了散体颗粒的无约束屈服强度、料斗形状、操作条件和延时效应对静态拱宽度的影响

提出负压差移动床立管料斗孔口最小直径的理论预测方法.

Abstract

The method to humidify Fee catalyst is taken to simulate the change of properties of cohesive particles. The model presented in this paper is conformed by the measurement of the width of the static arching in hopper against negative pressure gradient. The effect of various factors

such as the unconfined yield strength of powder

the shape of a hopper

operation condition and the time of consolidation on the width of static arching is discussed in detail . The method to determine the minimal size of out - let of standpipe is presented. for the design of standpipe in industry.

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