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A kind of high-efficiency dry and wet combined powder micro-particle classification device and method

A grading device and micro-particle technology, which is applied in wet separation, solid separation, chemical instruments and methods, etc., can solve the problems of complex operation in the grading process, poor consistency of grading results, and low grading accuracy, so as to solve the problem of low grading accuracy , increase continuity and operability, increase the effect of settlement area and processing capacity

Active Publication Date: 2022-07-05
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing dry classification technology has follow-up operations such as dust removal, and the classification accuracy is not high
However, the commonly used wet grading equipment has problems such as low grading efficiency, complicated operation of the grading process, and poor consistency of grading results.

Method used

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  • A kind of high-efficiency dry and wet combined powder micro-particle classification device and method
  • A kind of high-efficiency dry and wet combined powder micro-particle classification device and method
  • A kind of high-efficiency dry and wet combined powder micro-particle classification device and method

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Experimental program
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Effect test

Embodiment 1

[0068] This embodiment provides a high-efficiency combination of dry and wet powder particle classification device, such as figure 1 As shown, the device includes a feeding mechanism 1, a dry classification system 2, a spray chamber 3 and a wet classification system 4, wherein:

[0069]The feeding mechanism 1 includes a first blower 101, a material bin 103, a feeding pipe 102 and a material disperser 105; wherein, one end of the feeding pipe 102 is connected to the first blower 101, and the other end is connected to the material disperser 105; the material bin 103 is connected to the feeding pipeline 102, and a dome valve 104 is provided at the port where the material bin 103 and the feeding pipeline 102 are connected, and the dome valve 104 controls the The powder particles of the material bin 103 enter the feeding pipeline 102; the material disperser 105 is connected to the dry classification system 2;

[0070] The dry classification system 2 includes a second blower 204, a...

Embodiment 2

[0099] The present embodiment provides a method for classifying powder micro-particles that combines high-efficiency dry method and wet method. The method is applied to the device described in Embodiment 1, and the method includes:

[0100] Step 1: Assemble and integrate the feeding mechanism 1, the dry classification system 2, the spray chamber 3 and the wet classification system 4, and perform an air leakage test in the dry classification system 2, Do a water leak test in the wet grading system 4;

[0101] Step 2: At the beginning of the experiment, the first ball valve 201 and the second ball valve 403 are in a closed state. First, the atomizer 304 is turned on, and the first constant flow pump 306 and the second constant flow pump are adjusted. Speed ​​401, then turn on the second blower 204 and adjust the blowing volume;

[0102] Step 3: use the dome valve 104 to control the feeding of powder particles, set the blowing volume of the first blower 101, and feed the powder ...

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Abstract

The invention discloses a powder micro-particle classification device and a method combining high-efficiency dry method and wet method, and belongs to the technical field of powder micro-particle classification equipment. The device of the invention includes a feeding mechanism, a dry classification system, a spray chamber and a wet classification system. The feeding mechanism is provided with a blower, a material bin, a material disperser, a valve and an expansion-contraction-expansion structure pipeline. The end of the expanded structure pipeline is the material disperser, and the material disperser is connected to and placed inside the dry grading system. The dry grading system uses a multi-channel fine-diameter pipe to connect with the spray chamber; the spray The liquid-solid discharge port of the chamber is connected with the liquid-solid feed port of the wet classification system through a pipeline, and the pipeline is provided with a flow meter and a peristaltic pump. The invention realizes the high-precision and high-efficiency classification of ultra-fine powder through the effective combination of powder dry classification and powder wet classification, and at the same time, the continuous classification operation can significantly improve the production efficiency of ultra-fine powder.

Description

technical field [0001] The invention relates to a powder micro-particle classification device and method combining high-efficiency dry method and wet method, and belongs to the technical field of powder micro-particle classification equipment. Background technique [0002] Ultrafine powder usually refers to powder particle materials with a particle size of less than 10 μm. As the size decreases, the molecular ordering, electron distribution structure and crystal structure of the powder particle surface change significantly, which in turn exhibits a series of excellent properties such as mechanical properties, optical properties, electromagnetic properties, and surface and interface properties. However, with the development of industrial technology, the requirements for the particle size and particle size distribution of ultrafine powders in various fields are becoming more and more strict, and ultrafine powders prepared by conventional methods usually cannot directly meet th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B7/00B07B7/01B07B7/04B07B11/00B07B11/02B07B11/06B03B5/62
CPCB03B7/00B07B7/01B07B7/04B07B11/00B07B11/02B07B11/06B03B5/623Y02A50/2351
Inventor 俞建峰石赛夏晓露黄然程洋刘汇洋化春键蒋毅
Owner JIANGNAN UNIV