Gas-solid separation fluidized bed spatial characteristics research device and characteristics research method

A technology of spatial characteristics and gas distribution device, which is applied in measurement devices, aerodynamic tests, and testing of machine/structural components, etc. The effect of low maintenance cost, simple and convenient operation, and easy processing and production

Active Publication Date: 2022-04-19
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many research methods and methods at present, the research on the spatial characteristics of gas-solid fluidization separation performance and the synergy mechanism between the local bed and the overall system is still relatively weak, and it is still not possible to comprehensively analyze the interaction of multiple influencing factors. The law of action on the spatial characteristics of gas-solid fluidization

Method used

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  • Gas-solid separation fluidized bed spatial characteristics research device and characteristics research method
  • Gas-solid separation fluidized bed spatial characteristics research device and characteristics research method
  • Gas-solid separation fluidized bed spatial characteristics research device and characteristics research method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The method includes the following steps:

[0057] Step 1. Put magnetite powder of 0.15-0.175mm into the fluidized bed, set the height of the static bed to 150mm-250mm, adopt a uniform opening air distribution plate with an overall opening rate of 10%, and turn on the Roots blower 41 , the compressed air enters the air distribution chamber 20 sequentially through the air bag 42, the rotameter 43, and the intake pipe 44, and the compressed air enters the fluidized bed body 10 through the gas distribution device 30 in the air distribution chamber. The pre-air distribution plate used in the test for A1.

[0058] Step 2. In order to characterize the spatial distribution characteristics of solid particles in different positions of the gas-solid separation fluidized bed as much as possible, design representative sampling points to study the distribution characteristics of the mass flow rate of solid particles through three-dimensional sampling of the bed. points such as Fig...

Embodiment 2

[0063] combine figure 1 , to further study the influence mechanism of different factors on the spatial characteristics of the gas-solid separation fluidized bed. In this embodiment, the research on the spatial characteristics of the gas-solid separation fluidized bed using the above-mentioned device includes the following steps:

[0064] Step 1. Put 0.15-0.175mm magnetite powder into the fluidized bed, set the height of the static bed to 200mm, adopt a uniform opening air distribution plate with an overall opening rate of 20%, turn on the Roots blower 41, and compress The air enters the air distribution chamber 20 sequentially through the air bag 42, the rotameter 43, and the air inlet pipe 44. The compressed air first passes through a pre-distribution air distribution chamber, and then enters the fluidized bed body 10 through the gas distribution device 30 in sequence. Three kinds of gas distribution devices are designed according to the experimental requirements. The hole ty...

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Abstract

The invention discloses a device for studying the spatial characteristics of a fluidized bed for gas-solid separation, which includes: an air supply system and a fluidized bed system, the air supply system is connected to the fluidized bed system; the fluidized bed system includes: Body, air distribution chamber and gas distribution device, the gas distribution device includes: upper air distribution device and three replaceable pre-distribution air plates, the upper air distribution device is evenly opened with air distribution holes, three replaceable pre-air distribution The board includes: a first pre-distributing air board, a second pre-air distributing board and a third pre-air distributing board; the invention also discloses a gas-solid separation fluidized bed spatial characteristics research device for gas-solid separation flow Quantitative research method for the spatial characteristics of chemical beds. The device of the present invention has scientific and reasonable design, simple process, low operation and maintenance cost, fine and comprehensive analysis, realizes the quantitative evaluation and analysis of the spatial characteristics of the gas-solid separation fluidized bed, and provides a new method for the study of the complex mechanism of gas-solid fluidization. ideas and references.

Description

technical field [0001] The invention relates to the technical field of analysis and measurement of a gas-solid separation system, in particular to a device and method for studying the spatial characteristics of a fluidized bed for gas-solid separation. Background technique [0002] In traditional chemical research, the gas-solid fluidized bed has a variety of space-time structures, and there is a strong coupling of motion characteristics between different scales, including strong coupling of bubbles, aggregation structures, gas-solid flow, and particle-to-particle motion characteristics. It is a typical complex system. Complex energy, mass, and momentum exchanges occur between the gas-solid two phases, between particle phases, and between the particle phase and the bed wall, and these exchanges significantly affect the stability and separation performance of the fluidized environment. The main factors causing bed instability in gas-solid separation fluidized bed are: primar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/06
CPCG01M9/06
Inventor 付艳红王松陈增强赵跃民董良
Owner CHINA UNIV OF MINING & TECH
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