Title:
POWDER ELECTROSTATIC ACCUMULATION TEST DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/061176
Kind Code:
A1
Abstract:
A powder electrostatic accumulation test device, comprising an automatic feeding module, a sample sliding module, and a data acquisition and processing module. The automatic feeding module comprises a feeding hopper (4), a vibrator (20), and a control valve (21); the sample sliding module comprises an obliquely provided sliding groove (7); and the data acquisition and processing module comprises a mass measurement module, a charge measurement module, and a data processing module. By configuring the vibrator (20) and the control valve (21) on the feeding hopper (4), the vibrator (20) can ensure that a sample is continuously added to the sliding groove (7), so that a manual mode is replaced with a mechanical mode; and the adjustment of the degree of opening of the control valve (21) can implement effective control on a feeding speed, thereby effectively reducing the effects of human factors and improving test precision. Meanwhile, the mass measurement module measures the mass of the sample sliding into a Faraday cylinder (13), and does not record the mass of the sample adhered to intermediate links such as the feeding hopper (4) and the sliding groove (7), so that the test precision can be remarkably improved. Also provided is a powder electrostatic accumulation test method which is simple in operations and precise in test results.
Inventors:
TAN LINGHUA (CN)
LI YAXIN (CN)
ZHANG LIBO (CN)
LV JING (CN)
HANG ZUSHENG (CN)
WU QIONG (CN)
LI YAXIN (CN)
ZHANG LIBO (CN)
LV JING (CN)
HANG ZUSHENG (CN)
WU QIONG (CN)
Application Number:
PCT/CN2022/120469
Publication Date:
April 20, 2023
Filing Date:
September 22, 2022
Export Citation:
Assignee:
UNIV NANJING SCI & TECH (CN)
International Classes:
G01R29/24; G01N27/60; G01R29/12
Foreign References:
| CN113945774A | 2022-01-18 | |||
| CN107831374A | 2018-03-23 | |||
| CN102353854A | 2012-02-15 | |||
| CN206638722U | 2017-11-14 | |||
| JP3189520U | ||||
| CN108254633A | 2018-07-06 | |||
| CN110231274A | 2019-09-13 | |||
| JPH08313485A | 1996-11-29 | |||
| JPH11295367A | 1999-10-29 | |||
| JP2014016178A | 2014-01-30 |
Other References:
"Master's Thesis", 4 June 2017, SOUTHEAST UNIVERSITY, CN, article WU, HAIYANG: "Experimental Study on Conduction Induction Separation of Fly Ash and Its Numerical Simulation", pages: 1 - 63, XP009545137
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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