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.:
Date of Patent:
Aug. 19, 2025
Filed:
Jul. 15, 2022
The Institute of Seawater Desalination and Multipurpose Utilization, Mnr(tianjin), Tianjin, CN;
Chungang Xie, Tianjin, CN;
Shaoyan Lu, Tianjin, CN;
Wenyan Zhang, Tianjin, CN;
Licong Wang, Tianjin, CN;
Laibo Ma, Tianjin, CN;
Liang Wang, Tianjin, CN;
Abstract
The disclosure discloses a spiral-flow type fluidized-bed cooling crystallization system. The system comprises a first fluidized-bed crystallizer, a second fluidized-bed crystallizer, a crystal growing tank, a centrifuge, a circulating pump, a flow control valve, a densimeter and the like, wherein vertical heat transfer pipes are arranged in the first fluidized-bed crystallizer and the second fluidized-bed crystallizer, and scraping particles are contained in the heat transfer pipes. According to the invention, feed liquid exchanges heat with a cooling medium through the vertical heat transfer pipes; meanwhile, spiral spray heads at the bottoms of the heat transfer pipes are used for enabling the feed liquid in the pipes to form a spiral flow field, and the scraping particles are efficiently driven to continuously impact and crush crystals attached to heat transfer wall faces, so the effects of heat transfer enhancement, heat transfer wall face self-cleaning.