Modified ultrafiltration membrane and preparation method thereof

Abstract

The invention discloses a modified ultrafiltration membrane and a preparation method thereof. The modified ultrafiltration membrane comprises a filter tube and an ultrafiltration membrane, wherein theouter surface of the ultrafiltration membrane is fixedly connected with a sleeve; fixing grooves are formed in the two sides of the top and the bottom of the filter tube; the inner wall of each fixing groove is rotationally connected with a telescopic rod through a connecting block; one end of the telescopic rod penetrates through the fixing groove and extends to the outside of the fixing groove;one end, extending to the outside of the fixing groove, of the telescopic rod is rotationally connected with the arc-shaped plate through a connecting block; the quantity of the telescopic rods is two; a buffer spring is fixedly connected between the surfaces of the telescopic rods and positioned at the side, opposite to arc-shaped plate, of the inner wall of the fixing groove; a clamping springis fixedly connected onto the inner wall of the fixing groove and is positioned between the opposite sides of the surfaces of the two telescopic rods. The invention relates to the technical field of filtration. The modified ultrafiltration membrane and the preparation method have the advantages that the convenient replacement on the ultrafiltration membrane in the filter can be realized; the installation is stable; the modified ultrafiltration membrane cannot easily fall; certain cost is saved; good conditions are created for the subsequent filtering work.

Description

technical field [0001] The invention relates to the technical field of filtration, in particular to a modified ultrafiltration membrane and a preparation method thereof. Background technique [0002] Ultrafiltration membrane is a kind of microporous filtration membrane with uniform pore size and rated pore size below 0.01 micron. The industrial application of ultrafiltration membrane is very extensive, and it has become one of the new chemical unit operations for separation, concentration and purification of biological products. In the , pharmaceutical and food industries, it is also used as a terminal treatment device in blood treatment, wastewater treatment and ultrapure water preparation. [0003] The filter using ultrafiltration membrane as material has many conveniences, which can effectively filter impurities in the liquid, but the ultrafiltration membrane module inside the existing filter can only be used once, which is very troublesome to replace, and the installatio...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a modified ultrafiltration membrane and its preparation method, which solves the problem that the ultrafiltration membrane module in the existing filter is inconvenient to replace

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