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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9850142 B1

PDFFull Text
Date of Patent:
Dec. 26, 2017

Filed:

Dec. 16, 2013

Method and device for recycling and purifying water vapor from coal drying process

Applicants:

Tianhua Institute of Chemical Machinery and Automation Co., Ltd., Lanzhou, CN;

National Engineering Research Center of Drying Technology and Equipment, Lanzhou, CN;

Inventors:

Xu Zhao, Lanzhou, CN;

Maikui Zhang, Lanzhou, CN;

Tao Shen, Lanzhou, CN;

Zhongfu Zhan, Lanzhou, CN;

Yongpeng Tan, Lanzhou, CN;

Min Jia, Lanzhou, CN;

Tianbao Wang, Lanzhou, CN;

Xiaoling Xie, Lanzhou, CN;

Assignees:

Tianhua Institute of Chemical Machinery and Automation Co., Ltd., Lanzhou, CN;

National Engineering Research Center of Drying Technology and Equipment, Lanzhou, CN;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

Jonathan Miller

Assistant Examiner:

Jonathan Luke Pilcher

Int. Cl.
CPC ...
B01D 5/00 (2006.01); B01D 3/06 (2006.01); B01D 53/00 (2006.01); F28C 1/02 (2006.01); C02F 1/06 (2006.01); F28B 3/00 (2006.01);
U.S. Cl.
CPC ...
C02F 1/06 (2013.01); B01D 5/0087 (2013.01); B01D 3/06 (2013.01); B01D 5/00 (2013.01); B01D 5/003 (2013.01); B01D 5/009 (2013.01); B01D 5/0027 (2013.01); B01D 5/0078 (2013.01); B01D 5/0081 (2013.01); B01D 5/0084 (2013.01); B01D 5/0093 (2013.01); B01D 53/002 (2013.01); F28B 3/00 (2013.01); F28C 1/02 (2013.01);
Abstract

A method and device are provided for purifying and recycling water vapor from a coal drying process. Included are a temperature-lowering and dehumidifying process, a flash distillation stripping process, and a vacuum condensing process. A condensing tower receives a temperature-lowered exhaust gas with high humidity from a cooling tube and a condensed water of 5˜60° C. from a flash distillation tank, allowing the exhaust gas and the condensed water to contact each other in a vapor-liquid reverse manner, to lower the temperature and dehumidify the exhaust gas. The flash distillation tank performs a vacuum flash distillation to the condensing water pumped therein from the condensing tower. Water vapor of 5˜60° C. evaporated through flash distillation in the flash distillation tank enters into the demisting washer to be dehumidified and then is condensed. The condensed water in the vapor condenser is transferred into a recycled water tank. Non-condensable gas is discharged out.

Find Patent Forward Citations

Zhao, Xu. (2017). Method and device for recycling and purifying water vapor from coal drying process (U.S. Patent No. 9850142). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9850142

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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