External pressure type hollow fiber curtain type membrane and preparation method thereof

Abstract

The invention discloses an external pressure type hollow fiber curtain type membrane and a preparation method thereof, and the preparation method comprises the following steps: spreading M wet membrane filaments which are parallel to each other in the same plane, arranging every two wet membrane filaments at equal intervals, aligning the two ends respectively, and fixedly connecting the two ends of the M wet membrane filaments respectively to prepare a membrane row; sequentially stacking the N membrane rows at equal intervals, and performing airing to obtain dry membrane filaments; arranging the two ends of the N membrane rows in the two membrane boxes in a one-to-one correspondence mode, and after casting and fixing are conducted through an adhesive, cutting off the ends of the membrane boxes and the ends of the membrane rows; gluing and fixing the two water production membrane pipes to the membrane boxes at the two ends of the membrane row in a one-to-one correspondence mode, and preparing the external pressure type hollow fiber curtain type membrane. According to the external pressure type hollow fiber curtain type membrane and the preparation method thereof, the workload of preparing the curtain type membrane is reduced; the membrane filaments are respectively aligned and arranged along the transverse direction and the longitudinal direction, so the sewage blockage can be prevented, the filtering capacity is improved, the aeration frequency is reduced, and the filling quantity of the membrane filaments in unit volume is increased.

Description

technical field [0001] The invention relates to an external pressure hollow fiber curtain membrane and a preparation method thereof. Background technique [0002] In the prior art, when preparing hollow fiber curtain membranes, firstly, smear 703 silica gel on the ends of the dried hollow fiber membranes, wait for curing and separate the filaments, and then evenly fill them in the membrane box, Inject polyurethane hard glue, cut off the end after curing for several hours, then bond the membrane box and the water-producing membrane tube, and cast soft glue at the root of the membrane wire. [0003] This method of preparation and the curtain membrane made have the following disadvantages: [0004] The membrane filament needs to be dried and processed, and the workload of drying and removing the membrane filament is relatively large; [0005] In the whole bundle of membrane filaments, the gap between the membrane filaments is too large or too small, and the spacing cannot be ...

AI Technical Summary

Problems solved by technology

[0004]Membranes need to be dried and then processed. Drying and removing the membranes for processing will result in a large workload;

[0005]In the whole bundle of membrane filaments, the gap between the membrane filaments is too large or too small, which cannot ensure uniform spacing; the prepared curtain membrane The film and the membrane frame are assembled to form a membrane box. When the membrane box is working, continuous aeration is required, and the treatment cost consumed by the aeration accounts for more than 60% of the water treatment cost;

[0006]The arrangement of membrane filaments and membrane filament products is disorderly and disorderly, and the arrangement depends entirely on the work experience of workers, and a large amount of labor is used, which is inefficient; the root of the membrane filaments is directly caused by the disordered arrangement. Easy to cause fouling, and the filling area is not high

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