Title:
AIR BUBBLE MEASURING DEVICE AND AIR BUBBLE MEASUREMENT METHOD
Document Type and Number:
WIPO Patent Application WO/2019/189117
Kind Code:
A1
Abstract:
Provided is an air bubble measuring device capable of accurately understanding the conditions of air bubbles in a liquid even when the size of the air bubbles is small. An air bubble measuring device (10) measures air bubbles moving in a liquid. The air bubble measuring device (10) is provided with a measurement chamber (11) that holds a liquid (W). The measurement chamber (11) is provided with: an introduction port (27a) for introducing air bubbles in the liquid (W) from a lower side; and a transparent inclined surface that is inclined downward and provided at a position at which air bubbles present in the liquid (W) rise. A hydrophilic membrane (23b) having a contact angle with water of 20 degrees or less is provided to this transparent inclined surface. Through this configuration, adherence of air bubbles to the transparent inclined surface can be prevented even when the air bubbles have become small. As a result, air bubbles remaining at the transparent inclined surface can be prevented, and the condition of the air bubbles, namely, the size and quantity of the air bubbles can be accurately measured.
Inventors:
ISHIKAWA SHINTARO (JP)
Application Number:
PCT/JP2019/012751
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
G01N15/02; G01N15/06
Foreign References:
| CN104596898A | 2015-05-06 | |||
| JP2000121548A | 2000-04-28 | |||
| JP2011033351A | 2011-02-17 | |||
| JP2009300099A | 2009-12-24 | |||
| US5152175A | 1992-10-06 | |||
| JPH08210966A | 1996-08-20 | |||
| JP2005532550A | 2005-10-27 |
Other References:
MAZAHERNASAB, REYHANE ET AL.: "DETERMINATION OF BUBBLE SIZE DISTRIBUTION IN A LABORATORY MECHANICAL FLOTATION CELL BY A LASER DIFFRACTION TECHNIQUE", PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, pages 690 - 702, XP055638945
HERNANDEZ-AGUILAR, J. R. ET AL.: "A technique for the direct measurement of bubble size distributions in industrial flotation cells", PROCEEDINGS 34TH ANNUAL MEETING OF THE CANADIAN MINERAL PROCESSORS, January 2002 (2002-01-01), pages 1 - 15, XP055638951
HERNANDEZ-AGUILAR, J. R. ET AL.: "A technique for the direct measurement of bubble size distributions in industrial flotation cells", PROCEEDINGS 34TH ANNUAL MEETING OF THE CANADIAN MINERAL PROCESSORS, January 2002 (2002-01-01), pages 1 - 15, XP055638951
Attorney, Agent or Firm:
YAMAUCHI PATENT ATTORNEYS (JP)
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