Composite filter element containing kieselguhr and starch and manufacturing method of composite filter element
A composite filter element, diatomite technology, applied in chemical instruments and methods, separation methods, filtration and separation, etc., can solve problems such as inability to be complicated, and achieve the effect of reducing defective products, saving filtration time, and having a smooth surface
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[0049] Example 1
[0050] (1) Mix the macroporous starch and the microporous starch at a weight ratio of 50:1 to prepare a mixed starch;
[0051] (2) Each component is added to the high-speed mixer in the following weight ratio, 60 parts of modified diatomaceous earth, 15 parts of mixed starch obtained in step (1), 10 parts of cellulose acetate, 6 parts of original molecular sieve powder, 1 part of alumina, Add 5 parts of montmorillonite, a total of 5kg, into the high-speed mixer, and stir the dry powder for 1.5 minutes to form a dry powder;
[0052] (3) Mix camphor oil and absolute ethanol at a mass fraction of 0.8:1 to form a binder, add 3 parts of binder, 2 parts of emulsified paraffin, and aluminum sulfate to the dry powder obtained in step (2) three times. Add 1 part of bentonite and 3.5 kg of water to a high-speed mixer, stir for 5 minutes to form a semi-dry powder;
[0053] (4) Pass the semi-dry powder obtained in step (3) through a 10-mesh sieve to obtain semi-dry powder part...
Example Embodiment
[0057] Example 2
[0058] (1) Mixing macroporous starch and microporous starch in a weight ratio of 60:1 to prepare mixed starch;
[0059] (2) Each component is added to the high-speed mixer in the following weight ratio, 60 parts of modified diatomaceous earth, 15 parts of mixed starch obtained in step (1), 10 parts of cellulose acetate, 6 parts of original molecular sieve powder, 1 part of alumina, Add 5 parts of montmorillonite, a total of 5kg, into the high-speed mixer, and stir the dry powder for 1.5 minutes to form a dry powder;
[0060] (3) Mix camphor oil and absolute ethanol at a mass fraction of 1.1:1 to form a binder, add 5 parts of binder, 3 parts of emulsified paraffin, and aluminum sulfate to the dry powder obtained in step (2) three times. Add 3 parts of Bentonite and 4.0 kg of water to a high-speed mixer, stir for 5 minutes to form a semi-dry powder;
[0061] (4) Pass the semi-dry powder obtained in step (3) through a 10-mesh sieve to obtain semi-dry powder particles;...
Example Embodiment
[0065] Example 3
[0066] (1) Mix the macroporous starch and microporous starch in a ratio of 70:1 by weight to prepare a mixed starch;
[0067] (2) Each component is added to the high-speed mixer in the following weight ratio, 80 parts of modified diatomaceous earth, 20 parts of mixed starch obtained in step (1), 15 parts of cellulose acetate, 8 parts of original molecular sieve powder, 2 parts of alumina, 8 parts of montmorillonite, a total of 5kg, are added to the high-speed mixer, and the dry powder is stirred for 1.5 minutes to form a dry powder;
[0068] (3) Mix camphor oil and absolute ethanol at a mass fraction of 1:1 to form a binder, add 3 parts of binder, 2 parts of emulsified paraffin, and aluminum sulfate to the dry powder obtained in step (2) three times. Add 1 part of bentonite and 4.5kg of water into a high-speed mixer, stir for 5 minutes to form a semi-dry powder;
[0069] (4) Pass the semi-dry powder obtained in step (3) through a 10-mesh sieve to obtain semi-dry po...
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