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A kind of hollow fiber membrane plug processing technology

A processing technology and fiber membrane technology, applied in the field of hollow fiber membrane plug processing technology, can solve the problems of high production cost, unguaranteed plugging effect, complex processing technology of hollow fiber membrane plug, etc., and achieve low cost, The effective filtration area is maximized and the plugging height is basically the same

Active Publication Date: 2016-05-18
HANGZHOU CREFLUX MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the existing technology that the hollow fiber membrane plugging process is complicated, the production cost is high, and the plugging effect cannot be guaranteed, the present invention provides a hollow fiber membrane with simple manufacturing process, low cost and good plugging effect Plug processing technology

Method used

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  • A kind of hollow fiber membrane plug processing technology

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A hollow fiber membrane plug processing technology, as shown in Figure 1, 5 bundles, each bundle of 220 hollow fiber membrane filaments 1 with a length of 1.0m, an outer diameter of 1.1mm, and an inner diameter of 0.55mm to form an ultrafiltration membrane bundle, and the upper end is used as a conventional package end. Cut the lower ends of the membrane filaments 1 and spread them out naturally to form a free end. Lift the packaging end of the ultrafiltration membrane bundle and insert the free end vertically into the open container 2, 1 cm away from the bottom of the open container 2; pour glue into the open container 2 Layer 3 liquid epoxy resin is 10cm high, so that the outer and inner holes of the lower end of the hollow fiber membrane filament 1 are filled with epoxy resin; then slowly pour into the pressure layer 4 n-octane, pouring height 0.1cm, keep constant n-octane It is on the upper layer of epoxy resin and does not penetrate each other. The epoxy resin glue...

Embodiment 2

[0026] A hollow fiber membrane plug processing schematic diagram is the same as that of Example 1, except that the glue layer 3 liquid is polyurethane, and the polyurethane is poured into the open container 2 with a height of 0.5 cm, so that the outer side of the lower end of the hollow fiber membrane filament 1 and the The inner hole is filled with polyurethane; then slowly pour 4 liquid anhydrous ethanol into the pressure layer, and the pouring height is 10cm. After keeping constant, the anhydrous ethanol is on the upper layer of polyurethane and does not penetrate each other. The glue on the outside moves down, the glue in the inner hole of the membrane filament rises, seal the open container 2, and wait for the polyurethane glue to solidify; let it stand at room temperature (25°C) for 4 hours, and pour out the liquid in the pressure layer 4 after the polyurethane in the glue layer 3 solidifies Absolute ethanol is collected and recycled; at this time, it is found that the ou...

Embodiment 3

[0028] A hollow fiber membrane plug processing process, the schematic diagram is similar to that of Example 1, a bundle of 3000 hollow fiber membrane filaments 1 with a length of 1.0 m, an outer diameter of 1.3 mm, and an inner diameter of 0.70 mm is formed into an ultrafiltration membrane bundle, The upper end is used as the conventional package end. Put it into a plastic shell with a diameter of 10cm, and use glue to let it stand for packaging and cut out the film hole.

[0029] Tidy up the lower end, tie it tightly with a rope, and cut it at a distance of 1 cm from the bottom to form a free end, and the membrane filaments 1 are scattered. Fix the packaging end of the component and lift it, insert the free end vertically into the open container 2, 0.05cm away from the bottom of the open container 2, pour the glue layer 3 epoxy resin liquid 3cm deep into the open container 2 with a diameter of 15cm, and make the hollow fiber membrane The outer side and the inner hole of the ...

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Abstract

The invention relates to the technical field of membrane separation, especially relates a hollow fiber membrane plug processing technology; and the processing technology comprises the following steps: a hollow fiber membrane silk is prepared, and inserted into a container with an opening; the container is filled with a glue layer liquid; a pressure layer liquid is filled on the glue layer liquid, wherein the pressure layer density is less than the glue layer density, and the pressure layer and the pressure layer are incompatible; after standing at room temperature for a plurality of hours, until the glue layer is solidified, the pressure layer liquid is poured out; and the membrane silk is cut to obtain a single piece or a single bundle of mutually dispersive membrane silk bundle. According to the hollow fiber membrane plug processing technology, the incompatible pressure layer is arranged on the glue layer, so that the package height of the membrane silk can be better controlled, the plugging height of the membrane silk can be ensured to be basically the same, the effective filtration area of the membrane silk can be ensured to be maximized, the pressure layer liquid can be used repeatedly, and the hollow fiber membrane plug has the e advantages of no energy consumption, low cost, good plugging effect, simple operation, easy control, and high efficiency, and is suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of membrane separation, in particular to a hollow fiber membrane plug processing technology. Background technique [0002] In the existing hollow fiber membrane module structure, in order to improve the anti-pollution performance, a better method is to package and fix one end of the membrane module (including multiple or multi-bundle membrane filaments) as a whole, while the other end is single (or single bundle) ) are freely dispersed, and the inner pores of the hollow fiber membrane are blocked. However, the current manufacturing process of realizing free dispersion of single strands (or single strands) at the other end is complex, high cost, or poor in plugging quality, which affects the performance of the membrane filaments. [0003] For example: the patent "A Manufacturing Method for Hollow Fiber Membrane Modules (201010556829.1)" describes a method of sealing the inner pores of the membrane by vacuumi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D69/08B01D67/00
Inventor 万静张星星赵辉洪海云付源
Owner HANGZHOU CREFLUX MEMBRANE TECH
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