| abstract |
The invention belongs to the technical field of salt separation and crystallization, in particular to a high-salt wastewater nanofiltration low-temperature crystallization membrane method salt separation crystallization process and equipment; the crystallization device is suitable for the above-mentioned crystallization process, and the crystallization device comprises a nanofilter, Low-temperature crystallizer, concentrator and crystallizer, the nanofilter includes a nanofiltration unit and a cleaning unit; in the present invention, the motor rotates, and then the motor output shaft rotates, and the motor output shaft drives the cleaning brush to rotate through the connecting rod. The cylindrical structure, and the cleaning brush is in contact with the inner surface of the nanofiltration membrane sidewall, so the cleaning brush can clean the inner surface of the nanofiltration membrane sidewall; thereby improving the service life of the nanofiltration membrane and improving the use effect of the nanofiltration membrane. |