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Title:
VACUUM DRYING METHOD AND VACUUM DRYING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/036947
Kind Code:
A1
Abstract:
A vacuum drying apparatus and a vacuum drying method. The method comprises: immersing a processed product into pure water of 55-95°C for cleaning and preheating; slowly separating the processed product from the pure water, and transferring the processed product to a drying chamber; continuously introducing hot nitrogen to the drying chamber for initial drying; stopping introducing the hot nitrogen and continuously performing vacuumizing to further dry the processed product; continuously introducing hot nitrogen in which static charges are eliminated, so as to break a vacuum of the drying chamber and completely dry the processed product; and transferring the product out of the drying chamber. The method eliminates the use of a drying solvent, can reduce use terminal operating costs, has no deflagration risk, and has higher drying efficiency and stronger applicability.

Inventors:
JIANG XIN (CN)
SHEN ZONGHAO (CN)
SHI LIJUN (CN)
SONG JINLIN (CN)
Application Number:
PCT/CN2020/135362
Publication Date:
February 24, 2022
Filing Date:
December 10, 2020
Export Citation:
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Assignee:
SUZHOU JINGZHOU EQUIPMENT TECH CO LTD (CN)
International Classes:
F26B5/04
Foreign References:
CN105826221A2016-08-03
CN108831849A2018-11-16
CN206819975U2017-12-29
CN101718487A2010-06-02
CN111261495A2020-06-09
CN104613732A2015-05-13
CN102148133A2011-08-10
CN102496590A2012-06-13
CN110828343A2020-02-21
JP2006060010A2006-03-02
JP2002050600A2002-02-15
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
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