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Flat-plat membrane module and casting method thereof

A casting method and curtain film technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc. Non-uniformity, decreased membrane filament protection performance, etc., to achieve the effect of reducing the process of artificially arranging membrane filaments, having a beautiful appearance and reducing the time required for curing

Active Publication Date: 2015-09-09
南京万瑞环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the hard glue creeps up in the casting process of the current curtain membrane hollow fiber membrane module, causing the soft glue to reduce the protective performance of the membrane filaments, and the degree of hard glue creeping is too high, and the soft glue does not flow into the glue. Uniformity, thereby increasing the fatigue resistance of the root of the membrane filament and the adhesion between the membrane filament and the glue

Method used

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  • Flat-plat membrane module and casting method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Casting of Curtain Membrane Modules

[0039] The materials and specifications of the curtain membrane module are as follows:

[0040] The overall length of the curtain membrane module: 0.5m;

[0041] Hollow fiber membrane filament: PVDF material, quantity 100 pieces;

[0042] Hard glue: epoxy resin, soft glue: polyurethane.

[0043] Module performance: the number of broken membrane filaments ≤ 99.5%.

[0044] The casting process is as follows:

[0045] (1) Suspend the membrane filaments and partition the membrane filaments; hang 100 hollow fiber membrane filaments (4) on the 2 hooks (9) of the rotatable inner support (7);

[0046] (2) Take a 0.5m-long hollow fiber membrane, bind the membrane filament bundle at the same position with a nylon cable tie, cut the membrane filament and plug the hole;

[0047] (3) Use free clips (5) to partition the membrane filaments, the number of partitions is 2 groups, each group of partitions uses two free clips, each o...

Embodiment 2

[0058] Example 2: Casting of Curtain Membrane Modules

[0059] The materials and specifications of the curtain membrane module are as follows:

[0060] Curtain membrane module overall length: 2m;

[0061] Hollow fiber membrane filament: PTFE material, quantity 3000 pieces;

[0062] Hard glue: epoxy resin, soft glue: polyurethane.

[0063] The casting process is as follows:

[0064] (1) Suspend the membrane filaments and partition the membrane filaments, hang 3000 hollow fiber membrane filaments (4) on the 6 hooks (9) of the rotatable inner support (7);

[0065] (2) Take a 2m long hollow fiber membrane, bind the membrane filament bundle at the same position with nylon cable ties, cut the membrane filament and plug the hole;

[0066] (3) Use free clips (5) to partition the membrane filaments. The number of partitions is 8 groups. Two free clips are used for each group of partitions. The distance between the free clips is 30mm and 60mm from the bottom of the membrane filame...

Embodiment 3

[0077] Example 3: Casting of Curtain Membrane Modules

[0078] The materials and specifications of the curtain membrane module are as follows:

[0079] Curtain membrane module overall length: 2.5m

[0080] Hollow fiber membrane filament: PVDF material, quantity 6000 pieces

[0081] Hard glue: epoxy resin, soft glue: polyurethane.

[0082] The casting process is as follows:

[0083] (1) Suspend the membrane filaments and partition the membrane filaments, hang 6000 hollow fiber membrane filaments (4) on 8 hooks (9) of the rotatable inner support (7);

[0084] (2) Take a 2.5m long hollow fiber membrane, tie the membrane filament bundle at the same position with nylon cable ties, cut the membrane filament and plug the hole;

[0085] (3) Use free clamps (5) to partition the membrane filaments, the number of partitions is 8 groups, and each group partition uses two free clamps, each of which is 30mm and 60mm away from the bottom of the membrane filaments, and the vertical ring...

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Abstract

The invention relates to the technical field of wastewater treatment, in particular to a casting method of a flat-plate membrane module. The casting method is particularly a process for fixing two ends of membrane yarns of a hollow-fiber membrane and the membrane shell of a flat-plate membrane in a casting manner. A rotatable inner bracket serves as a support, mechanism pieces are used for fixing membrane yarn tows in a divisional manner, and the hollow-fiber membrane yarns are subjected to rough handling by a flexible glue; the glue insertion process is carried out after the flexible glue is cured, and a hard glue is subjected to preliminary treatment to speed up curing; the flexible glue is added after the hard glue is cured; after the two-end casting is finished, the membrane module is cut to complete casting of the flat-plate membrane module. The casting method not only improves the working efficiency but also solves the problems that the flowing uniformity of the flexible glue, the fatigue resistance of the root parts of the membrane yarns, and the adhesion between the membrane yarns and the flexible glue are influenced by yarn climbing of the hard glue, and can be applied to obtain the high-performance flat-plate membrane module.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a curtain membrane module and a casting method thereof. Background technique [0002] my country is a country seriously short of water, and the per capita water resources are only 1 / 4 of the world's per capita. At present, the recycling rate of industrial sewage in my country is only 6%, far below the level of developed countries, and the recycling rate of municipal sewage is even lower. As an interdisciplinary new technology developed in the 1960s, membrane technology has been widely promoted and applied in various fields at home and abroad for its excellent features such as high efficiency and energy saving, environmental protection and pollution-free, and the filtered material can be directly reused. [0003] In the application of sewage treatment, membrane technology is often combined with microbial fermentation technology to form a new and efficient sewage treatmen...

Claims

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Application Information

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IPC IPC(8): B01D63/00C02F3/00
Inventor 石丽林黑牯胡庆春李亮
Owner 南京万瑞环境科技有限公司
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