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1. (WO2018018864) MEMBRANE DISTILLATION CRYSTALLIZATION TREATMENT DEVICE AND METHOD

Pub. No.:    WO/2018/018864    International Application No.:    PCT/CN2017/072017
Publication Date: Fri Feb 02 00:59:59 CET 2018 International Filing Date: Mon Jan 23 00:59:59 CET 2017
IPC: B01D 61/36
Applicants: DATANG ENVIRONMENT INDUSTRY GROUP CO., LTD.
大唐环境产业集团股份有限公司
Inventors: LIU, Haiyang
刘海洋
XIA, Huaixiang
夏怀祥
XUE, Tonglai
薛同来
JIANG, Chengyu
江澄宇
LI, Yehong
李叶红
WU, Shihong
吴仕宏
LIU, Ning
刘宁
Title: MEMBRANE DISTILLATION CRYSTALLIZATION TREATMENT DEVICE AND METHOD
Abstract:
A membrane distillation crystallization treatment device and method. The device comprises: a heating device A (2) used for heating raw water; a crystallization tank (3), a water inlet of the crystallization tank (3) being connected to a water outlet of the heating device A (2), a heating device B (7), a stirring device (8) and a membrane assembly (4) being separately provided in the crystallization tank (3), the heating device B (7) and the stirring device (8) being separately located at the bottom of the crystallization tank (3), and the membrane assembly (4) being located above the heating device B (7) and the stirring device (8); a water generation tank (6), the top end of the membrane assembly (4) being connected to the water generation tank (6) by means of a condenser (5); and a sedimentation tank (9), a water outlet at the bottom of the crystallization tank (3) being connected to a water inlet of the sedimentation tank (9), a discharge port at the bottom of the sedimentation tank (9) being connected to a crystallized salt collection tank (10), and a supernatant outlet at the top of the sedimentation tank (9) being connected to a water inlet pipeline of the heating device A (2). The membrane distillation crystallization treatment device adopts a distillation concentration and crystallization integrated treatment device, and is favorable for preventing membrane pollution and reducing operation cost.