Ultrafiltration membrane bundle and processing method thereof

A processing method and ultrafiltration membrane technology, applied in ultrafiltration, chemical instruments and methods, membrane technology, etc., can solve the problems of many hours of work, not suitable for large-scale production, low labor efficiency, etc., and achieve low cost and continuous guarantee Sexuality and stability, the effect of improving the effect

Inactive Publication Date: 2013-08-21
HANGZHOU CREFLUX MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, if one end is used to package and one end to block the inner hole of the hollow ultrafiltration membrane, there will be difficulties in production technology. Whether it is a single membrane wire plugged with glue or a method of knotting at one end, it will be labor-intensive and time-consuming. Many, low labor efficiency, not suitable for mass production
Moreover, these two methods also have problems in terms of blocking effect.

Method used

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  • Ultrafiltration membrane bundle and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a bundle of 350 hollow fiber membranes with a length of 1.7m, an outer diameter of 1.1mm, and an inner diameter of 0.55mm forms an ultrafiltration membrane bundle 1, and the upper end serves as the packaging end. Fix the lower end with a rubber band, and cut it at a distance of 1 cm from the bottom to form a free end.

[0040] Pour the glue 3 into the package cup 2, lift the package end of the ultrafiltration membrane bundle 1 with a rope, insert the free end into the glue 0.5 cm, keep it constant and wait for the glue to solidify. The choice of glue 3 is different, and the solidification time is also different. 3 product description control time. After the glue 3 is solidified, it can be found that the outer wall of the ultrafiltration membrane bundle 1 is about 1 cm, and the inner wall is about 4-5 cm. We cut the ultrafiltration membrane bundle 1 with a blade at 1 cm from the lower end, and the membrane filaments will disperse naturally. ,...

Embodiment 2

[0044] A plastic outer tube with an outer diameter of 225mm, an inner diameter of 215mm, and a length of 1.5m is used, and the length is 1.7m. 350 hollow fiber membranes with an outer diameter of 1.1 mm and an inner diameter of 0.55 mm form an ultrafiltration membrane bundle 1, and one end of the ultrafiltration membrane bundle 1 is sealed manually. The plugged ultrafiltration membrane bundle 1 selects an appropriate number and puts it into a plastic outer tube, and uses a static packaging process for packaging. After the packaging is completed, cut the head, and then perform normal leak detection and flux measurement. The pressure is 0-0.15Mpa, and the test The result is normal. One end of the membrane filament is blocked by capillary phenomenon without leakage. The simulated operation is used for backwashing after one week of operation. The test result: the flux of the membrane filament is less damaged, and there is basically no sludge pollution in the tube. But the efficien...

Embodiment 3

[0046] Such as figure 1 As shown, a bundle of 1,000 hollow fiber membranes with a length of 1.7m, an outer diameter of 1.1mm, and an inner diameter of 0.55mm forms an ultrafiltration membrane bundle 1, and the upper end is cut neatly as the packaging end, and the packaging is fixed with glue.

[0047] Tighten the lower end with a rope and cut it 1 cm away from the bottom to form a free end. Seal the free end with the material of the coating head, the depth of the coating head is 0.5cm, and then pre-package with low adhesive strength silica gel, the pre-package height is 3cm, after the silica gel is solidified, cut off the end 1cm to expose the hollow The inner pores of the ultrafiltration membrane.

[0048] Pour the glue 3 into the package cup 2, lift the package end of the ultrafiltration membrane bundle 1 with a rope, insert the free end into the glue 3 by 0.5 cm, keep it constant and wait for the glue to solidify. After the glue 3 solidifies, the ultrafiltration membrane b...

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Abstract

The invention relates to an ultrafiltration membrane bundle and a processing method thereof. A hollow ultrafiltration membrane bundle comprises hollow ultrafiltration membranes, wherein one end of each hollow ultrafiltration membrane, as well as the hollow ultrafiltration membranes are fixedly connected; the hollow part of the other end of each hollow ultrafiltration membrane is in a tail end closed form; and the hollow ultrafiltration membranes are mutually dispersed. The processing method comprises the following steps of: cutting one end of each hollow ultrafiltration membrane tidily and encapsulating the ends by using glue or devices; and cutting the other end of each hollow ultrafiltration membrane tidily, soaking the other ends into glue, and cutting tidily along the glue climbing position of the outer wall after the glue is solidified, wherein the hollow ultrafiltration membranes are dispersed naturally and a hollow hole of each hollow ultrafiltration membrane is plugged completely by the glue. The ultrafiltration membrane bundle and the processing method thereof have the advantages of convenience for cleaning, long life, stable operation, simple method, convenience for operation, high production efficiency and suitability for large-scale industrialized production.

Description

technical field [0001] The invention relates to an ultrafiltration membrane bundle and a processing method thereof, belonging to the technical field of membrane separation water treatment. Background technique [0002] In recent years, the existing ultrafiltration membrane bundles all adopt a structure with both ends encapsulated, that is, the two ends are respectively fixed in hollow fiber ultrafiltration membrane bundles. [0003] For example, the utility model patent with the publication number CN201470318U provides a column-type hollow fiber ultrafiltration membrane bundle with a stepped end structure, including a pressure-bearing shell, and the outer two ends of the pressure-bearing shell are provided with end ends. , the terminal is connected to the end cover; the pressure-bearing shell is provided with an ultrafiltration membrane inside, and the two sides of the ultrafiltration membrane are respectively provided with sealants. The characteristic is that the top of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/02B01D67/00B01D61/18
Inventor 刘威威赵辉张星星
Owner HANGZHOU CREFLUX MEMBRANE TECH
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