CN103382096A - Anti-microbial ceramic filter core and preparation method thereof - Google Patents

Abstract

The invention provides an anti-microbial ceramic filter core. The ceramic filter core is prepared from the following raw materials by weight: 10 to 15 parts of volcanic powder, 50 to 60 parts of alumina, 10 to 15 parts of vermiculite powder, 10 to 20 parts of modified kaolin, 5 to 6 parts of nanometer silver, 4 to 6 parts of nanometer manganese dioxide, 2 to 5 parts of liquid paraffin, 1 to 2 parts of sodium tripolyphosphate, 3 to 5 parts of bagasse powder, 1 to 3 parts of ammonium bicarbonate, 10 to 15 parts of wheat flour and 2 to 4 parts of a styrene acrylic emulsion. A preparation method for the filter core comprises the following steps: step-by-step ball milling and mixing of the raw materials; slip casting; molding; and sintering. The filter core provided by the invention has good high temperature resistance, pressure resistance and corrosion resistance and a porosity of as high as 60 to 70%. A nanometer bactericidal material is uniformly distributed in the ceramic filter core, so the ceramic filter core has a bactericidal effect, and liquid or gas filtered by the ceramic filter core is fresher and healthier.

Description

A kind of anti-bacteria ceramic filter core and preparation method thereof

 

Technical field

The present invention relates to the filter core manufacture field, be specifically related to a kind of anti-bacteria ceramic filter core and preparation method thereof.

Background technology

Along with the development of society, the reinforcement of environmental consciousness, people are more and more higher to drinking the quality standards for water requirement, need less filtering accuracy, require to have simultaneously the decontamination effect improving of sterilization and anticorrosion, need to design the filter core of difference in functionality, satisfy the demand.

Summary of the invention

The invention provides a kind of anti-bacteria ceramic filter core and preparation method thereof.

The present invention adopts following technical scheme:

A kind of anti-bacteria ceramic filter core is characterized in that, is prepared from by the raw material of following weight part:

Volcano rock dust 10-15, aluminum oxide 50-60, vermiculite power 10-15, modified kaolin 10-20, nanometer silver 5-6, nano-manganese dioxide 4-6, whiteruss 2-5, tripoly phosphate sodium STPP 1-2, bagasse powder 3-5, bicarbonate of ammonia 1-3, wheat-flour 10-15, benzene emulsion 2-4

Wherein, the preparation method of modified kaolin:

at first kaolin is dropped in the dilute hydrochloric acid of 10-15%, at 60-70 ℃, soaked 6-7 hour, then filter, water rinses 3-4 time, then it is joined in homogenizer, the paregal O that adds the 1-2% of kaolin weight, the 2-3% silane coupling agent, , the 1-2% Macrogol 200, appropriate deionized water, high-speed stirring under the rotating speed of 1000-1200rpm, the 10-15% activated carbon fiber powder that adds again kaolin weight after 20-30 minute, the chitosan-acetic acid solution high-speed mixing of 1-2% 30-40 minute, then transfer in ball grinder, add again appropriate water, use 100-200rpm, ball milling 1-2 hour, stop ball milling, dry, obtain modified kaolin.

The preparation method of described anti-bacteria ceramic filter core is characterized in that, comprises the following steps:

(1) benzene emulsion is joined in container, adds distilled water, under 50-60 ℃, fully dissolving, by formula rate with nanometer silver, nano-manganese dioxide, join in solution, fully mix, obtain mixed liquor A, then be poured in ball grinder;

(2) wheat-flour is joined in container, add distilled water, under 60-70 ℃, fully dissolving, obtain starch adhesive B;

(3) rest materials in filling a prescription joins in the starch adhesive of step (2), with the speed high-speed stirring of 800-1000 rev/min 10-15 minute, obtains mixture C;

(4) mixture C joined in ball grinder mix with mixed liquor A, with 100-150rpm, rotating speed, ball milling 2-3 hour, obtain the slurry that material is evenly distributed;

(5) with the standing slaking 8-10 of slurry hour of step (4) gained, then slowly pour moulding in the die cavity of plaster mould into, obtain hollow filter core base substrate; Standing 1-2 hour, the demoulding obtained the filter core green compact;

(6) with green compact at 90-120 ℃ of dry 12-15 hour, then under protection of inert gas, at 800-1000 ℃ of sintering 5-6 hour, obtain antiseptic pottery filter of the present invention, during sintering, first the speed with 1-2 ℃/min heats up, when temperature is raised to 800 ℃, be incubated 2 hours; Speed with 3 ℃/min heats up again, when temperature is raised to 900 ℃, insulation 2 hours; Heat up with the speed of 4 ℃/min again, when temperature is raised to 1000 ℃, insulation 1 hour, stopped heating then, furnace cooling gets final product to room temperature.

Beneficial effect:

Ceramic element of the present invention, porosity is high, and is evenly distributed, and filtering accuracy is high, precision can reach 0.2mm-0.4mm, has improved the filter element filtering adsorption effect; That filter core of the present invention has is high temperature resistant, withstand voltage, anti-corrosion effects is good, porosity is up to 60%-70%; Be evenly distributed with the nano-disinfection material in ceramic element, have germicidal action, the liquid that filters out, or gas is more clear-headed, and more healthy.

Embodiment

A kind of anti-bacteria ceramic filter core is prepared from by the raw material of following weight (kg):

Volcano rock dust 12, aluminum oxide 58, vermiculite power 13, modified kaolin 15, nanometer silver 6, nano-manganese dioxide 4, whiteruss 4, tripoly phosphate sodium STPP 2, bagasse powder 3, bicarbonate of ammonia 1, wheat-flour 12, benzene emulsion 3,

Wherein, the preparation method of modified kaolin:

at first in the dilute hydrochloric acid with kaolin input 14%, at 65 ℃, soaked 6 hours, then filter, water rinses 4 times, then it is joined in homogenizer, 2% the paregal O that adds kaolin weight, 3% silane coupling agent, 1% Macrogol 200, appropriate deionized water, high-speed stirring under the rotating speed of 1200rpm, 14% activated carbon fiber powder that adds again kaolin weight after 25 minutes, 2% chitosan-acetic acid solution high-speed mixing 35 minutes, then transfer in ball grinder, add again appropriate water, use 150rpm, ball milling 2 hours, stop ball milling, dry, obtain modified kaolin.

The preparation method of anti-bacteria ceramic filter core comprises the following steps:

(1) benzene emulsion is joined in container, adds distilled water, under 55 ℃, fully dissolving, by formula rate with nanometer silver, nano-manganese dioxide, join in solution, fully mix, obtain mixed liquor A, then be poured in ball grinder;

(2) wheat-flour is joined in container, add distilled water, under 65 ℃, fully dissolving, obtain starch adhesive B;

(3) rest materials in filling a prescription joins in the starch adhesive of step (2), with the speed high-speed stirring of 800-1000 rev/min 14 minutes, obtains mixture C;

(4) mixture C joined in ball grinder mix with mixed liquor A, with 120rpm, rotating speed, ball milling 3 hours obtains the slurry that material is evenly distributed;

(5) with the standing slaking of slurry of step (4) gained 10 hours, then slowly pour moulding in the die cavity of plaster mould into, obtain hollow filter core base substrate; Standing 1.5 hours, the demoulding obtained the filter core green compact;

(6) with green compact 100 ℃ of dryings 14 hours, then under protection of inert gas, 800-1000 ℃ of sintering 6 hours, obtain antiseptic pottery filter of the present invention, during sintering, first the speed with 1.5 ℃/min heats up, and when temperature is raised to 800 ℃, is incubated 2 hours; Speed with 3 ℃/min heats up again, when temperature is raised to 900 ℃, insulation 2 hours; Heat up with the speed of 4 ℃/min again, when temperature is raised to 1000 ℃, insulation 1 hour, stopped heating then, furnace cooling gets final product to room temperature.

The present embodiment makes filter core aperture is at 3 μ m-15 μ m, and porosity is 60%, filtration velocity 25ml/hr.cm ²About (height of water 250mm), folding strength 18.3Mpa, the degerming rate reaches 97-99%.

Claims (2)

1. an anti-bacteria ceramic filter core, is characterized in that, is prepared from by the raw material of following weight part:

Volcano rock dust 10-15, aluminum oxide 50-60, vermiculite power 10-15, modified kaolin 10-20, nanometer silver 5-6, nano-manganese dioxide 4-6, whiteruss 2-5, tripoly phosphate sodium STPP 1-2, bagasse powder 3-5, bicarbonate of ammonia 1-3, wheat-flour 10-15, benzene emulsion 2-4

Wherein, the preparation method of modified kaolin:

at first kaolin is dropped in the dilute hydrochloric acid of 10-15%, at 60-70 ℃, soaked 6-7 hour, then filter, water rinses 3-4 time, then it is joined in homogenizer, the paregal O that adds the 1-2% of kaolin weight, the 2-3% silane coupling agent, , the 1-2% Macrogol 200, appropriate deionized water, high-speed stirring under the rotating speed of 1000-1200rpm, the 10-15% activated carbon fiber powder that adds again kaolin weight after 20-30 minute, the chitosan-acetic acid solution high-speed mixing of 1-2% 30-40 minute, then transfer in ball grinder, add again appropriate water, use 100-200rpm, ball milling 1-2 hour, stop ball milling, dry, obtain modified kaolin.

2. the preparation method of anti-bacteria ceramic filter core according to claim 1, is characterized in that, comprises the following steps:

(1) benzene emulsion is joined in container, adds distilled water, under 50-60 ℃, fully dissolving, by formula rate with nanometer silver, nano-manganese dioxide, join in solution, fully mix, obtain mixed liquor A, then be poured in ball grinder;

(2) wheat-flour is joined in container, add distilled water, under 60-70 ℃, fully dissolving, obtain starch adhesive B;

(3) rest materials in filling a prescription joins in the starch adhesive of step (2), with the speed high-speed stirring of 800-1000 rev/min 10-15 minute, obtains mixture C;

(4) mixture C joined in ball grinder mix with mixed liquor A, with 100-150rpm, rotating speed, ball milling 2-3 hour, obtain the slurry that material is evenly distributed;

(5) with the standing slaking 8-10 of slurry hour of step (4) gained, then slowly pour moulding in the die cavity of plaster mould into, obtain hollow filter core base substrate; Standing 1-2 hour, the demoulding obtained the filter core green compact;

(6) with green compact at 90-120 ℃ of dry 12-15 hour, then under protection of inert gas, at 800-1000 ℃ of sintering 5-6 hour, obtain antiseptic pottery filter of the present invention, during sintering, first the speed with 1-2 ℃/min heats up, when temperature is raised to 800 ℃, be incubated 2 hours; Speed with 3 ℃/min heats up again, when temperature is raised to 900 ℃, insulation 2 hours; Heat up with the speed of 4 ℃/min again, when temperature is raised to 1000 ℃, insulation 1 hour, stopped heating then, furnace cooling gets final product to room temperature.