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Sealing method of flat-plate ceramic membrane element

A technology of ceramic membrane and flat plate, which is applied in the direction of chemical instruments and methods, membrane, membrane technology, etc. It can solve the problems of inconsistent expansion coefficient of ceramic plate, not resistant to temperature and acid and alkali, and complicated process, so as to prevent the separation of glue and plug , high temperature resistance and low expansion, simple production process

Inactive Publication Date: 2020-06-30
山东硅苑新材料科技股份有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The organic glue bonding and sealing method has the problem of inconsistent expansion coefficients between organic glue and plastic plugs, ceramic plates, and easy cracking. The special glue filling equipment is expensive, the process is complicated, the labor efficiency is low, and the quality cannot be guaranteed. It is not resistant to temperature, acid and alkali, and glue filling. And many problems such as VOC poisonous gas in the cleaning process are easy to cause harm to the human body, which limits its application in industrial water treatment

Method used

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  • Sealing method of flat-plate ceramic membrane element
  • Sealing method of flat-plate ceramic membrane element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The sealing method of the flat ceramic membrane element described in Example 1 consists of the following steps:

[0042] (1) Al 2 o 3 Micropowder, composite oxide, water and processing aids are mixed by ball milling and sieved to make suspension A;

[0043] (2) Coating the coating liquid on the flat ceramic membrane, then coating the two ends of the flat ceramic membrane coated with the coating liquid with the suspension A, drying and sintering;

[0044] (3) Mechanically seal the sintered flat ceramic membrane and fasteners.

[0045] in:

[0046] Al described in step (1) 2 o 3The particle size of the fine powder is 0.5 micron, and the particle size of the composite oxide is 1.2±0.2 micron.

[0047] Al described in step (1) 2 o 3 The weight ratio of fine powder, composite oxide and water is 5:2:7.

[0048] The processing aid described in step (1) is a mixture of defoamer, dispersant and wetting agent mixed in any proportion, and the mass of the processing aid ac...

Embodiment 2

[0064] The sealing method of the flat ceramic membrane element described in Embodiment 2 consists of the following steps:

[0065] (1) Al 2 o 3 Micropowder, composite oxide, water and processing aids are mixed by ball milling and sieved to make suspension A;

[0066] (2) Coating the coating liquid on the flat ceramic membrane, then coating the two ends of the flat ceramic membrane coated with the coating liquid with the suspension A, drying and sintering;

[0067] (3) Mechanically seal the sintered flat ceramic membrane and fasteners.

[0068] in:

[0069] Al described in step (1) 2 o 3 The particle size of the fine powder is 0.7 micron, and the particle size of the composite oxide is 1.7±0.2 micron.

[0070] Al described in step (1) 2 o 3 The weight ratio of fine powder, composite oxide and water is 6:3:7.

[0071] The processing aid described in step (1) is a mixture of defoamer, dispersant and wetting agent mixed in any proportion, and the mass of the processing ai...

Embodiment 3

[0087] The sealing method of the flat ceramic membrane element described in this embodiment 3 consists of the following steps:

[0088] (1) Al 2 o 3 Micropowder, composite oxide, water and processing aids are mixed by ball milling and sieved to make suspension A;

[0089] (2) Coating the coating liquid on the flat ceramic membrane, then coating the two ends of the flat ceramic membrane coated with the coating liquid with the suspension A, drying and sintering;

[0090] (3) Mechanically seal the sintered flat ceramic membrane and fasteners.

[0091] in:

[0092] Al described in step (1) 2 o 3 The particle size of the fine powder is 1.0 micron, and the particle size of the composite oxide is 1.5±0.2 micron.

[0093] Al described in step (1) 2 o 3 The weight ratio of fine powder, composite oxide and water is 4:3:8.

[0094] The processing aid described in step (1) is a mixture of defoamer, dispersant and wetting agent mixed in any proportion, and the mass of the processi...

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Abstract

The invention belongs to the technical field of plate ceramic membrane preparation, and particularly relates to a sealing method of a plate ceramic membrane element. The method comprises the steps: carrying out ball milling and uniform mixing on Al2O3 micro-powder, composite oxide, water and a processing aid, and sieving to obtain a suspension A; coating a flat plate ceramic membrane with a coating solution, then coating the two ends of the flat plate ceramic membrane coated with the coating solution with the suspension A, and drying and sintering the flat plate ceramic membrane; and sealing the sintered flat ceramic membrane and a fastener in a mechanical mode. The sealing method of the flat plate ceramic membrane element is a method combining inorganic materials and mechanical sealing, and is good in sealing effect, resistant to high temperature, low in expansion, resistant to acid and alkali corrosion, free of pollution, simple in manufacturing process and quite suitable for batch assembly of the flat plate ceramic membrane element.

Description

technical field [0001] The invention belongs to the technical field of flat ceramic membrane preparation, and in particular relates to a sealing method of a flat ceramic membrane element. Background technique [0002] Flat ceramic membrane combines the advantages of flat organic membrane and tubular ceramic membrane. It has the characteristics of convenient installation, low filtration resistance and good performance. It can be widely used in MBR water treatment and RO pretreatment fields, especially suitable for industrial wastewater, domestic sewage, It is used in municipal water and other fields, and has shown advantages that other products cannot replace. Therefore, as the core component of the membrane water treatment system, the flat ceramic membrane industry has a very broad development prospect, and it plays a very important role in solving the problems of regional water shortage and environmental pollution in our province. [0003] After the flat ceramic membrane i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D65/00B01D63/08
CPCB01D63/081B01D65/003B01D2313/04
Inventor 孟凡朋杨东亮樊震坤张超张健张伟
Owner 山东硅苑新材料科技股份有限公司