CN103381326B - Carbon crystal composite microporous ceramic filter core and preparation method thereof - Google Patents

Abstract

The invention provides a carbon crystal composite microporous ceramic filter core and a preparation method thereof. The invention is characterized in that the ceramic filter core is prepared from the following raw materials by weight: 12 to 14 parts of light calcium carbonate, 9 to 12 parts of kaolin, 7 to 9 parts of diatomite, 10 to 12 parts of bamboo charcoal powder, 4 to 6 parts of charcoal dust, 1 to 2 parts of straw ash, 12 to 14 parts of celestine powder, 6 to 8 parts of talcum powder, 3 to 5 parts of mica powder, 10 to 12 parts of chlorinated paraffin, 12 to 14 parts of ethanol, 25 to 35 parts of modified bentonite and a proper amount of water. The ceramic filter core provided by the invention has a plurality of functions like filtration, adsorption and suppression of bacterial reproduction and has the protruding advantages of high purification efficiency, high temperature resistance, small pressure loss, corrosion resistance, a long service life, removal of dust in air, etc.

Description

A kind of carbon crystal compound micropore ceramic filter element and preparation method thereof

Technical field

The invention belongs to filtering material technical field, specifically a kind of carbon crystal compound micropore ceramic filter element and preparation method thereof.

Background technology

Filtering material purposes is very extensive, is widely used in the industry such as chemical industry, electric power, metallurgy, oil, electronic apparatus, machinery; Modal have air filter for automobile, for filtering the air entering engine, being stopped by the mechanical admixture compositions such as the particle in air, particulate, preventing these compositions from entering in gasoline, diesel oil or machine oil, ensure engine work.A large amount of filtering materials is also had to be used for air handling system, present ambient air pollutes very serious, high risks health, air filting material can by the various deleterious particle thing absorption of air, prevent the life or the working environment that enter people, reduce human lung to the suction of the harmful substances such as particle, improve the quality of life of people, reduce the generation of disease.Some is for water filtration and sewage disposal, for separating of the heavy metal in water or harmful components.Existing filtering material mainly contains ceramic honey comb, filter paper, steel wire etc.Existing honeycomb ceramic filter material feedstock joins function singleness, can not meet the requirement of technology development.

Summary of the invention

The object of this invention is to provide a kind of carbon crystal compound micropore ceramic filter element and preparation method thereof.

The technical solution adopted in the present invention is:

A kind of carbon crystal compound micropore ceramic filter element, is characterized in that being made up of the raw material of following weight portion:

Precipitated calcium carbonate 12-14, kaolin 9-12, diatomite 7-9, bamboo charcoal powder 10-12, charcoal powder 4-6, stalk ashes 1-2, celestite powder 12-14, talcum powder 6-8, mica powder 3-5, chlorinated paraffin wax 10-12, ethanol 12-14, modified alta-mud 25-35, water are appropriate.

Described modified alta-mud is obtained by following methods:

Bentonite is put into 490-520 DEG C of calcining 3-4 hour, take out, cooling, puts into 10-12% hydrochloric acid solution and soaks 3-4 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the alum powder of 2-3%, the zeolite powder of 2-3%, the hypericum japonicum powder of 15-18% that are equivalent to bentonite weight 35-40% again, mix and blend 30-40 minute, and then spray into the MTES being equivalent to bentonite weight 2-5%, under 12000-15000 rev/min, stir 60-80 minute, to obtain final product.

The preparation method of described carbon crystal compound micropore ceramic filter element, is characterized in that comprising the following steps:

Each mixing of materials is even, vacuum pugging, extruded, then send into subregion sintering in tunneled sintering kiln, a district: 240-280 DEG C, time 3-4 hour, 2nd district: 460-480 DEG C, time 4-5 hour; 3rd district: 760-790 DEG C, time 3-4 hour; 4th district: 1120-1250 DEG C, time 3-4 hour; Then after cooling, send in 300-450pp liquor potassic permanganate and soak 2-3 days, then send in 3-5% hydrochloric acid and soak 1-2 hour, after taking-up, clear water is cleaned, and dries and get final product.

The present invention has filtration, absorption and the several functions such as anti-bacteria breeding simultaneously, has that purification efficiency is high, high temperature resistant, the pressure loss is little, an outstanding advantages such as micronic dust in corrosion-resistant, long service life, removing air.The present invention may be used for air handling system air filtration, also may be used for water filtration, automobile filter inhale filter can also be used for, be applicable to the place of various bad environments.

Detailed description of the invention

A kind of carbon crystal compound micropore ceramic filter element, be made up of the raw material of following weight portion (kilogram):

Precipitated calcium carbonate 12, kaolin 12, diatomite 9, bamboo charcoal powder 10, charcoal powder 6, stalk ashes 2, celestite powder 12, talcum powder 8, mica powder 5, chlorinated paraffin wax 10, ethanol 14, modified alta-mud 35, water are appropriate.

Described modified alta-mud is obtained by following methods:

Bentonite is put into 490-520 DEG C of calcining 3-4 hour, take out, cooling, puts into 10-12% hydrochloric acid solution and soaks 3-4 hour, takes out, and cleans with pure water, dries pulverize; Add again be equivalent to bentonite weight 40% aluminium nitride, 3% alum powder, the zeolite powder of 3%, the hypericum japonicum powder of 18%, mix and blend 30-40 minute, and then spray into the MTES being equivalent to bentonite weight 5%, under 12000-15000 rev/min, stir 60-80 minute, to obtain final product.

The preparation method of carbon crystal compound micropore ceramic filter element, comprises the following steps:

Each mixing of materials is even, vacuum pugging, extruded, then send into subregion sintering in tunneled sintering kiln, a district: 240-280 DEG C, time 3-4 hour, 2nd district: 460-480 DEG C, time 4-5 hour; 3rd district: 760-790 DEG C, time 3-4 hour; 4th district: 1120-1250 DEG C, time 3-4 hour; Then after cooling, send in 300-450pp liquor potassic permanganate and soak 2-3 days, then send in 3-5% hydrochloric acid and soak 1-2 hour, after taking-up, clear water is cleaned, and dries and get final product.

Inventive samples important technological parameters is: heat shock resistance: 950 DEG C-20 DEG C air-cooled does not once split; Maximum operation (service) temperature 1250 DEG C.The technical indicator of exhaust gas purification and treatment device is: process maximum gas temperature 550 DEG C; Trapping micronic dust efficiency >=99%; Outlet drain soot dust granule substrate concentration≤30mg/m3; The dust granules minimum grain size scope 1-10 μ caught.

Claims (1)

1. a carbon crystal compound micropore ceramic filter element, is characterized in that being made up of the raw material of following weight portion:

Precipitated calcium carbonate 12-14, kaolin 9-12, diatomite 7-9, bamboo charcoal powder 10-12, charcoal powder 4-6, stalk ashes 1-2, celestite powder 12-14, talcum powder 6-8, mica powder 3-5, chlorinated paraffin wax 10-12, ethanol 12-14, modified alta-mud 25-35, water are appropriate;

Described modified alta-mud is obtained by following methods:

Bentonite is put into 490-520 DEG C of calcining 3-4 hour, take out, cooling, puts into 10-12% hydrochloric acid solution and soaks 3-4 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the alum powder of 2-3%, the zeolite powder of 2-3%, the hypericum japonicum powder of 15-18% that are equivalent to bentonite weight 35-40% again, mix and blend 30-40 minute, and then spray into the MTES being equivalent to bentonite weight 2-5%, under 12000-15000 rev/min, stir 60-80 minute, to obtain final product;

The preparation method of described carbon crystal compound micropore ceramic filter element, comprises the following steps:

Each mixing of materials is even, vacuum pugging, extruded, then send into subregion sintering in tunneled sintering kiln, a district: 240-280 DEG C, time 3-4 hour, 2nd district: 460-480 DEG C, time 4-5 hour; 3rd district: 760-790 DEG C, time 3-4 hour; 4th district: 1120-1250 DEG C, time 3-4 hour; Then after cooling, send in 300-450pp liquor potassic permanganate and soak 2-3 days, then send in 3-5% hydrochloric acid and soak 1-2 hour, after taking-up, clear water is cleaned, and dries and get final product.