LIQUID CONCENTRATION METHOD AND THIN FILM EVAPORATION DEVICE

WIPO Patent Application WO/2024/024805

A1

The present invention provides a thin film evaporation device that improves separation performance in a liquid concentration method using the thin film evaporation device, and that is suited to exhibiting excellent separation performance.　This thin film evaporation device comprises an evaporation unit having a vertical cylinder-shaped inner peripheral surface, the inner peripheral surface being used for concentrating the liquid to be processed, and the device is provided with grooved wipers for forming a liquid film of the liquid to be treated on the inner peripheral surface by circulating around along said inner peripheral surface. The grooved wipers have a plurality of grooves that are more recessed than a surface of the grooved wipers facing the inner peripheral surface and are respectively open toward the front side and the rear side in the circulation, and the plurality of grooves are provided such that the liquid to be processed passes therethrough, with the opening on the front side as the entrance and the opening on the rear side as the exit during the circulation of the grooved wipers. The grooved wipers are circulated while filling at least one among the plurality of grooves with the liquid to be processed across all sections from the entrance to the exit, so as to concentrate the liquid to be processed.

HOSOMI MASARU (JP)
BANDO MASASHI (JP)
YAMAGAMI NORIYUKI (JP)
NOJI SOTA (JP)
MISAWA KAZUFUMI (JP)

PCT/JP2023/027273

February 01, 2024

July 25, 2023

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KOBELCO ECO SOLUTIONS CO LTD (JP)

B01D1/22

WO2013136874A1

2013-09-19

JPS541038U	1979-01-06
JP2014018708A	2014-02-03
CN111701262A	2020-09-25
JPS50131863A	1975-10-18

FUJIMOTO & PARTNERS (JP)

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