Treatment tank for cyclodextrin derivative membrane separation

The utility model relates to the technical field of membrane separation of cyclodextrin derivatives, in particular to a treatment tank for membrane separation of cyclodextrin derivatives, which is used for matching with a nanofiltration membrane filter to perform liquid inlet and outlet actions by arranging a return pipe, a pressure pump, a liquid conveying header pipe and a liquid outlet; taking a sodium sulfobutyl-beta-cyclodextrin solution as an example, during working, the sodium sulfobutyl-beta-cyclodextrin solution enters the tank body through the return pipe and then enters the nanofiltration membrane filter, and after nanofiltration, the sodium sulfobutyl-beta-cyclodextrin solution returns to the tank body through the return pipe; sampling at a liquid outlet, discharging the liquid after the detection is qualified, and when the detection is unqualified, enabling the sodium sulfobutyl-beta-cyclodextrin solution to enter the nanofiltration membrane filter again, and carrying out circulating nanofiltrati