CN103382128A - Ceramic filter core containing cocoanut-shell activated carbon and preparation method thereof - Google Patents

Abstract

The invention provides a ceramic filter core containing cocoanut-shell activated carbon. The ceramic filter core is prepared from the following raw materials by weight: 30 to 40 parts of diatomite, 10 to 15 parts of Chinese medical stone, 5 to 10 parts of modified mica powder, 6 to 8 parts of slag powder, 10 to 15 parts of zeolite powder, 4 to 5 parts of magnesium carbonate, 10 to 12 parts of aluminum oxide, 5 to 10 parts of mallee bark powder, 10 to 15 parts of cocoanut-shell activated carbon powder, 4 to 5 parts of sodium carbonate, 2 to 4 parts of sodium polyphosphate, 1 to 3 parts of fatty alcohol polyoxyethylene ether ammonium sulfate, 1 to 2 parts of sodium lauryl sulfate and 3 to 4 parts of urea. 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. According to the invention, diatomite is used as a base material, mica powder is modified, so dispersibility is improved, porosity is enhanced, the proportion of micropores is increased, the micropores are uniformly distributed, filtration efficiency is improved, the resource of mica powder is rich, raw materials are easily available and cheap, cost is reduced, and porosity is as high as 55 to 65%.

Description

A kind of pottery filter core that contains cocoanut active charcoal and preparation method thereof

Technical field

The present invention relates to the filter core manufacture field, be specifically related to a kind of pottery filter core that contains cocoanut active charcoal and preparation method thereof.

Background technology

Development along with 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 simultaneously to have the decontamination effect improving of sterilization and anticorrosion, the filtration of the purifier that the automobile different sites is filled requires also more and more higher, and the filter core in purifier plays Main Function, need to design the filter core of different-effect, satisfy different needs.

Summary of the invention

The invention provides a kind of pottery filter core that contains cocoanut active charcoal and preparation method thereof.

The present invention adopts following technical scheme:

A kind of pottery filter core that contains cocoanut active charcoal is characterized in that, is prepared from by the raw material of following weight part:

Diatomite 30-40, medical stone 10-15, modified micaceous powder 5-10, pulverized slag 6-8, zeolite powder 10-15, magnesiumcarbonate 4-5, aluminium sesquioxide 10-12, mallee bark powder 5-10, cocoanut active charcoal powder 10-15, sodium carbonate 4-5, sodium polyphosphate 2-4, AESA 1-3, sodium laurylsulfate 1-2, urea 3-4

The preparation method of described modified micaceous powder is:

At first mica powder was calcined 3-4 hour under 300-400 ℃, then take out, grind, add the silane coupling agent KH560 of mica powder weight 2%, 1% acetyl triethyl citrate, 2% polyethylene wax, 2% zinc oxide, 4% aluminum oxide, under the rotating speed of 2000rpm, temperature is 85 ℃, high-speed stirring 4 hours, dry, pulverize, cross 120 mesh sieves, obtain modified micaceous powder.

The described preparation method who contains the pottery filter core of cocoanut active charcoal is characterized in that, comprises the following steps:

(1) urea is joined in container, add distilled water, under 55-60 ℃, fully dissolving, then be poured in ball grinder, adds modified micaceous powder by formula rate, with the 90-100rpm rotating speed, and ball milling 4-5 hour;

(2) rest materials of filling a prescription joins in ball grinder, uses the 95-110rpm rotating speed, ball milling 4-5 hour;

(3) slurry after ball milling is placed in vacuum and removes bubble;

(4) will remove slurry after bubble, standing slaking 8-9 hour, then slowly pour moulding in the die cavity of plaster mould into, obtain hollow filter core base substrate; Standing 2-3 hour, the demoulding obtained the filter core green compact;

(5) with green compact at 90-120 ℃ of dry 18-20 hour, then under protection of inert gas, first the speed with 1-1.5 ℃/min heats up, and when temperature is raised to 800 ℃, is incubated 2 hours; Speed with 1 ℃/min heats up again, when temperature is raised to 900 ℃, is incubated 2 hours; Heat up with the speed of 2.0 ℃/min again, when temperature is raised to 1100 ℃, be incubated 1 hour, stopped heating then, furnace cooling arrives room temperature, gets final product.

Beneficial effect of the present invention:

Filter core of the present invention is take diatomite as base-material, add modified micaceous powder, improved dispersiveness, increased porosity, made the ratio of minute aperture increase, and be evenly distributed, improved filtration efficiency, add simultaneously mallee bark powder, cocoanut active charcoal powder, reduced cost, increased Adsorption Filtration Properties; Improved withstand voltage, the corrosion resistance and good of ceramic element by sintering, void content is up to 55%-65%.

Embodiment

A kind of pottery filter core that contains cocoanut active charcoal is prepared from by the raw material of following weight (kg):

Diatomite 40, medical stone 10, modified micaceous powder 10, pulverized slag 7, zeolite powder 12, magnesiumcarbonate 5, aluminium sesquioxide 11, mallee bark powder 8, cocoanut active charcoal powder 15, sodium carbonate 5, sodium polyphosphate 2, AESA 1, sodium laurylsulfate 2, urea 4

The preparation method of described modified micaceous powder is:

At first mica powder was calcined 4 hours under 350 ℃, then take out, grind, add the silane coupling agent KH560 of mica powder weight 2%, 1% acetyl triethyl citrate, 1% polyethylene wax, 3% zinc oxide, 4% aluminum oxide, under the rotating speed of 2000rpm, temperature is 85 ℃, high-speed stirring 3 hours, dry, pulverize, cross 120 mesh sieves, obtain modified micaceous powder.

The preparation method of pottery filter core comprises the following steps:

(1) urea is joined in container, add distilled water, under 60 ℃, fully dissolving, then be poured in ball grinder, adds modified micaceous powder by formula rate, with the 100rpm rotating speed, and ball milling 5 hours;

(2) rest materials of filling a prescription joins in ball grinder, uses the 110rpm rotating speed, ball milling 4 hours;

(3) slurry after ball milling is placed in vacuum and removes bubble;

(4) will remove slurry after bubble, then standing slaking 9 hours slowly pours moulding in the die cavity of plaster mould into, obtains hollow filter core base substrate; Standing 2 hours, the demoulding obtained the filter core green compact;

(5) with green compact 120 ℃ of dryings 18 hours, then under protection of inert gas, first the speed with 1 ℃/min heats up, and when temperature is raised to 800 ℃, is incubated 2 hours; Speed with 1 ℃/min heats up again, when temperature is raised to 900 ℃, is incubated 2 hours; Heat up with the speed of 2.0 ℃/min again, when temperature is raised to 1100 ℃, be incubated 1 hour, stopped heating then, furnace cooling arrives room temperature, gets final product.

The present embodiment makes filter core aperture is at 2 μ m-20 μ m, void content 65%, filtration velocity 15ml/hr.cm ²About (height of water 200mm), folding strength 13.0Mpa.

Claims (2)

1. a pottery filter core that contains cocoanut active charcoal, is characterized in that, is prepared from by the raw material of following weight part:

Diatomite 30-40, medical stone 10-15, modified micaceous powder 5-10, pulverized slag 6-8, zeolite powder 10-15, magnesiumcarbonate 4-5, aluminium sesquioxide 10-12, mallee bark powder 5-10, cocoanut active charcoal powder 10-15, sodium carbonate 4-5, sodium polyphosphate 2-4, AESA 1-3, sodium laurylsulfate 1-2, urea 3-4

The preparation method of described modified micaceous powder is:

At first mica powder was calcined 3-4 hour under 300-400 ℃, then take out, grind, the acetyl triethyl citrate, 1-2% polyethylene wax, 2-3% zinc oxide, the 3-4% aluminum oxide that add silane coupling agent KH560, the 1-2% of mica powder weight 1-2%, under the rotating speed of 1500-2000rpm, temperature is 80-90 ℃, high-speed stirring, 3-4 hour, drying was pulverized, cross 120 mesh sieves, obtain modified micaceous powder.

2. the preparation method who contains the pottery filter core of cocoanut active charcoal according to claim 1, is characterized in that, comprises the following steps:

(1) urea is joined in container, add distilled water, under 55-60 ℃, fully dissolving, then be poured in ball grinder, adds modified micaceous powder by formula rate, with the 90-100rpm rotating speed, and ball milling 4-5 hour;

(2) rest materials of filling a prescription joins in ball grinder, uses the 95-110rpm rotating speed, ball milling 4-5 hour;

(3) slurry after ball milling is placed in vacuum and removes bubble;

(4) will remove slurry after bubble, standing slaking 8-9 hour, then slowly pour moulding in the die cavity of plaster mould into, obtain hollow filter core base substrate; Standing 2-3 hour, the demoulding obtained the filter core green compact;

(5) with green compact at 90-120 ℃ of dry 18-20 hour, then under protection of inert gas, first the speed with 1-1.5 ℃/min heats up, and when temperature is raised to 800 ℃, is incubated 2 hours; Speed with 1 ℃/min heats up again, when temperature is raised to 900 ℃, is incubated 2 hours; Heat up with the speed of 2.0 ℃/min again, when temperature is raised to 1100 ℃, be incubated 1 hour, stopped heating then, furnace cooling arrives room temperature, gets final product.