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Preparation method of disc type multichannel ceramic membrane

A multi-channel, ceramic membrane technology, which is applied in the field of water treatment, can solve the problems of complex fastening process, high difficulty, and low pass rate of two biscuits, so as to ensure integrity and strength reliability, reduce molding difficulty, reduce The effect of tooling costs

Pending Publication Date: 2022-03-29
SANDA FILM SCI & TECH XIAMEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a disc-type multiple The preparation method of the channel ceramic membrane is a dry pressing molding process, which does not need to use a diversion groove mold and is pressed into one body with the help of a molding machine, which reduces the technical difficulty of ceramic membrane preparation and ensures the integrity of the green body

Method used

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  • Preparation method of disc type multichannel ceramic membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]1) Preparation of disc-type multi-channel ceramic membrane support

[0039] Take by weighing 100 parts of alumina powder I with an average particle diameter of 50 μm, 5 parts of sintering aids (aluminum sol accounts for 35%, titanium sol accounts for 20%, magnesium carbonate accounts for 20%, kaolin accounts for 25%), and the average particle diameter is 5 μm 10 parts of carbon black, 6 parts of polyvinyl alcohol with a molecular weight of 2000 and a purity greater than 99%, the polyvinyl alcohol is stirred and dissolved in hot water for use, and the aluminum oxide powder I, sintering aid and carbon black are dried with a strong mixer After mixing for 5 minutes, slowly add polyvinyl alcohol aqueous solution and 4 parts of oleic acid on the granulator until most of the mud becomes microspheres;

[0040] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into the mold cavity and spread them flat;

[0041] Use the ...

Embodiment 2

[0052] 1) Preparation of disc-type multi-channel ceramic membrane support

[0053] Take by weighing 100 parts of alumina powder I with an average particle diameter of 40 μm, 5 parts of sintering aids (aluminum sol accounts for 35%, titanium sol accounts for 20%, magnesium carbonate accounts for 20%, kaolin accounts for 25%), and the average particle diameter is 5 μm 10 parts of carbon black, 6 parts of polyvinyl alcohol with a molecular weight of 2000 and a purity greater than 99%, the polyvinyl alcohol is stirred and dissolved in hot water for use, and the aluminum oxide powder I, sintering aid and carbon black are dried with a strong mixer After mixing for 5 minutes, slowly add polyvinyl alcohol aqueous solution and 4 parts of oleic acid on the granulator until most of the mud becomes microspheres;

[0054] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into the mold cavity and spread them flat;

[0055] Use the...

Embodiment 3

[0066] 1) Preparation of disc-type multi-channel ceramic membrane support

[0067] Take by weighing 100 parts of alumina powder I with an average particle diameter of 30 μm, 5 parts of sintering aids (aluminum sol accounts for 35%, titanium sol accounts for 20%, magnesium carbonate accounts for 20%, kaolin accounts for 25%), and the average particle diameter is 5 μm 10 parts of carbon black, 6 parts of polyvinyl alcohol with a molecular weight of 2000 and a purity greater than 99%, the polyvinyl alcohol is stirred and dissolved in hot water for use, and the aluminum oxide powder I, sintering aid and carbon black are dried with a strong mixer After mixing for 5 minutes, slowly add polyvinyl alcohol aqueous solution and 4 parts of oleic acid on the granulator until most of the mud becomes microspheres;

[0068] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into the mold cavity and spread them flat;

[0069] Use the...

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Abstract

The invention discloses a preparation method of a disc-type multi-channel ceramic membrane, which comprises the following steps: firstly, filling a mold cavity with a proper amount of granulation pug and paving, then carrying out injection molding on a plurality of plastic rubber blocks with the same shape as a channel, uniformly placing the plastic rubber blocks on the flattened powder surface, then filling a proper amount of granulation pug and paving, and finally, carrying out injection molding on the plastic rubber blocks to obtain the disc-type multi-channel ceramic membrane. And carrying out compression molding by using a molding press, demolding and sintering to obtain the support body with the channel inside. A mold with a flow guide groove is not needed, the forming difficulty is greatly reduced, the mold cost is reduced, the biscuit is integrally formed through a forming press, the filling plastic rubber block is decomposed and discharged in the high-temperature sintering process, an internal channel of the supporting body is formed, the attaching process of two biscuits is omitted, and the production efficiency is improved. And the integrity and the strength reliability of the support body are ensured.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a disc type ceramic membrane. Background technique [0002] Ceramic microfiltration membrane has high chemical stability, acid resistance, alkali resistance, corrosion resistance, high temperature resistance, firm structure, high mechanical strength, pressure resistance and wear resistance, high separation efficiency, reliable use, reverse flushing, strong anti-microbial ability, With the advantages of not reacting with microorganisms, it has a wide range of applications in the treatment of oil-water separation, filtration of microorganisms in biomedicine, and separation and purification of active ingredients in food fermentation liquid. [0003] The most critical problem that plagues the application and development of ceramic membrane microfiltration technology is the decrease of membrane filtration flux caused by concentration polarization and membrane fouli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/117C04B35/622C04B35/634C04B35/636C04B35/64C04B38/06C04B38/00C04B41/87C02F1/44B28B3/00B28B23/00
CPCC04B35/117C04B35/622C04B35/63416C04B35/63488C04B35/6365C04B35/64C04B38/068C04B38/0041C04B38/067C04B41/87C04B41/5031C02F1/444B28B3/00B28B23/00C04B2235/5436C04B2235/3218C04B2235/3232C04B2235/3206C04B2235/349C04B2235/424C04B2235/6562C04B2235/6567C04B2235/95C04B2235/96C04B41/4539C04B41/4543C04B41/4582C04B41/0072C04B41/52
Inventor 曾冬清洪昱斌方富林蓝伟光
Owner SANDA FILM SCI & TECH XIAMEN
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