APPARATUS AND METHOD FOR SLIT NOZZLE SPRAY DEFOAMING

Title:

APPARATUS AND METHOD FOR SLIT NOZZLE SPRAY DEFOAMING

Document Type and Number:

WIPO Patent Application WO/2015/140904

Kind Code:

A1

Abstract:

Provided are a method and an apparatus for slit nozzle spray defoaming, in which a bubble-containing liquid is ejected and sprayed by means of a slit nozzle mechanism, which is arranged in a pressure-reduced environment, to separate a bubble fraction contained in the bubble-containing liquid from a liquid fraction, the bubble fraction is then radially diffused and then sucked and discharged effectively, and the liquid fraction is stored, whereby producing a deaerated liquid fraction. A method for slit nozzle spray defoaming, which is characterized by comprising: a step of retaining a bubble-containing liquid under pressure, whereby it becomes possible to introduce the bubble-containing liquid in a pressurized state; a spraying step, whereby it becomes possible to radially spray and eject the bubble-containing liquid, which is transferred under pressure, by means of a slit nozzle mechanism (3) to thereby separate the bubble-containing liquid into a gaseous fraction and a liquid fraction, wherein the slit nozzle mechanism (3) is composed of a slit hole (7) and a coil-shaped wire material (9) that intersects the slit hole (7); a vacuum treatment step, whereby it becomes possible to suck and discharge the gaseous fraction in a surrounding state; a liquid fraction storage vessel step, whereby it becomes possible to accommodate and store the separated liquid fraction; and a transfer step, whereby it becomes possible to remove the defoamed liquid fraction.

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Inventors:

ARAI KOICHI (JP)

Application Number:

PCT/JP2014/057149

Publication Date:

September 24, 2015

Filing Date:

March 17, 2014

Export Citation:

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Assignee:

ARAI MACHINERY CORP (JP)

International Classes:

B01D19/00; A23L2/00

Domestic Patent References:

WO2014010062A1

2014-01-16

Foreign References:

JPS6274413A	1987-04-06
JPS58202005A	1983-11-25
JPS51150170A	1976-12-23
JP2001009206A	2001-01-16

Attorney, Agent or Firm:

NIWA Hiroyuki et al. (JP)
Hiroyuki Niwa (JP)

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