Preparation method of internal multichannel disc type ceramic membrane
A disc type, ceramic membrane technology, applied in the field of water treatment, can solve problems such as complex fastening process, low pass rate, and risk of material leakage, so as to reduce molding difficulty, reduce mold cost, ensure integrity and reliable strength sexual effect
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Embodiment 1
[0044] 1) Preparation of internal multi-channel disc ceramic membrane support
[0045] 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;
[0046] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into a mold with grooves, and dry press them on a large-...
Embodiment 2
[0058] 1) Preparation of internal multi-channel disc ceramic membrane support
[0059] 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;
[0060] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into a mold with grooves, and dry press them on a large-...
Embodiment 3
[0072] 1) Preparation of internal multi-channel disc ceramic membrane support
[0073] 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;
[0074] Dry and sieve the granulated mud, take mud microspheres with a particle size between 20 and 80 mesh, put them into a mold with grooves, and dry press them on a large-...
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Abstract
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