CN103381320B - A kind of filtering micropore filter core and preparation method thereof - Google Patents

Abstract

A kind of filtering micropore filter core and preparation method thereof, is characterized in that being made up of the raw material of following weight portion: diatomite 34-36, active carbon 6-8, high density polyethylene (HDPE) 21-23, medical stone 8-10, Silane coupling agent KH550 4-6, calcium chloride 7-9, sodium metasilicate 9-12, ammonium chloride 2-3, modified alta-mud 25-35, water are appropriate.Diatomite of the present invention has a lot of micropore, excellent adsorption, and active carbon coordinates diatomite, improves the adsorption capacity of filter core, the outstanding advantages such as the present invention has that purification efficiency is high, the pressure loss is little, micronic dust in corrosion-resistant, long service life, removing air.

Description

A kind of filtering micropore filter core and preparation method thereof

Technical field

The invention belongs to filtering material technical field, specifically a kind of filtering micropore filter core 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 filtering micropore filter core and preparation method thereof.

The technical solution adopted in the present invention is:

A kind of filtering micropore filter core, is characterized in that being made up of the raw material of following weight portion:

Diatomite 34-36, active carbon 6-8, high density polyethylene (HDPE) 21-23, medical stone 8-10, Silane coupling agent KH550 4-6, calcium chloride 7-9, sodium metasilicate 9-12, ammonium chloride 2-3, modified alta-mud 25-35, water are appropriate.

Described modified alta-mud is obtained by following methods:

Bentonite is put into 520-540 DEG C of calcining 3-4 hour, take out, cooling, puts into 10-12% hydrochloric acid solution and soaks 2-3 hour, then puts into 10-12% sodium hydroxide solution and soak 1-2 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the Dogbane Leaf of 16-18%, the alum powder of 2-3%, the zeolite powder of 2-3%, the tungsten carbide powder of 3-4% that are equivalent to bentonite weight 35-40% again, mix and blend 30-40 minute, and then spray into and be equivalent to bentonite weight 5-7%'s crosslinking agent TAC, under 12000-15000 rev/min, stir 40-50 minute, to obtain final product.

The preparation method of described filtering micropore filter core, is characterized in that comprising the following steps:

By medical stone, diatomite roasting 3-4 hour at 560-600 DEG C, then pulverize, after cleaning with 3-4% hydrochloric acid solution, dry, then even with other mixing of materials, vacuum pugging, compressing, send in car tunnel furnace and sinter, first at 100-110 DEG C, sinter 4-5 hour, then, at 190-210 DEG C, sinter 120-150 minute, after cooling, take out, the sodium bicarbonate solution putting into 4-6% soaks 3-4 hour, then, the liquor potassic permanganate putting into 300-400ppm soaks 12-15 hour, after taking-up, use clear water edulcoration, dry and get final product.

Diatomite of the present invention has a lot of micropore, excellent adsorption, and active carbon coordinates diatomite, improves the adsorption capacity of filter core, the outstanding advantages such as the present invention has that purification efficiency is high, the pressure loss is little, 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 filtering micropore filter core, be made up of the raw material of following weight portion (kilogram):

Diatomite 34, active carbon 8, high density polyethylene (HDPE) 23, medical stone 10, Silane coupling agent KH550 6, calcium chloride 7, sodium metasilicate 12, ammonium chloride 3, modified alta-mud 35, water are appropriate.

Described modified alta-mud is obtained by following methods:

Bentonite is put into 520-540 DEG C of calcining 3-4 hour, take out, cooling, puts into 10-12% hydrochloric acid solution and soaks 2-3 hour, then puts into 10-12% sodium hydroxide solution and soak 1-2 hour, takes out, and cleans with pure water, dries pulverize; Add the aluminium nitride, the Dogbane Leaf of 18%, alum powder, the zeolite powder of 3%, the tungsten carbide powder of 4% of 3% that are equivalent to bentonite weight 40% again, mix and blend 30-40 minute, and then spray into and be equivalent to bentonite weight 7% crosslinking agent TAC, under 12000-15000 rev/min, stir 40-50 minute, to obtain final product.

The preparation method of filtering micropore filter core, comprises the following steps:

By medical stone, diatomite roasting 3-4 hour at 560-600 DEG C, then pulverize, after cleaning with 3-4% hydrochloric acid solution, dry, then even with other mixing of materials, vacuum pugging, compressing, send in car tunnel furnace and sinter, first at 100-110 DEG C, sinter 4-5 hour, then, at 190-210 DEG C, sinter 120-150 minute, after cooling, take out, the sodium bicarbonate solution putting into 4-6% soaks 3-4 hour, then, the liquor potassic permanganate putting into 300-400ppm soaks 12-15 hour, after taking-up, use clear water edulcoration, dry and get final product.

Inventive samples important technological parameters is: heat shock resistance: 150 DEG C-20 DEG C air-cooled does not once split; Maximum operation (service) temperature 150 DEG C.The technical indicator of exhaust gas purification and treatment device is: trapping micronic dust efficiency >=99%; Outlet drain soot dust granule substrate concentration≤30mg/m3; The dust granules minimum grain size scope 1-10 μm caught.

Claims (1)

1. a filtering micropore filter core, is characterized in that being made up of the raw material of following weight portion:

Diatomite 34-36, active carbon 6-8, high density polyethylene (HDPE) 21-23, medical stone 8-10, Silane coupling agent KH550 4-6, calcium chloride 7-9, sodium metasilicate 9-12, ammonium chloride 2-3, modified alta-mud 25-35, water are appropriate;

Described modified alta-mud is obtained by following methods: bentonite is put into 520-540 DEG C of calcining 3-4 hour, take out, cooling, put into 10-12% hydrochloric acid solution and soak 2-3 hour, then put into 10-12% sodium hydroxide solution and soak 1-2 hour, take out, clean with pure water, dry pulverize; Add the aluminium nitride, the Dogbane Leaf of 16-18%, the alum powder of 2-3%, the zeolite powder of 2-3%, the tungsten carbide powder of 3-4% that are equivalent to bentonite weight 35-40% again, mix and blend 30-40 minute, and then spray into the crosslinking agent TAC being equivalent to bentonite weight 5-7%, under 12000-15000 rev/min, stir 40-50 minute, to obtain final product;

The preparation method of described filtering micropore filter core, comprises the following steps:

By medical stone, diatomite roasting 3-4 hour at 560-600 DEG C, then pulverize, after cleaning with 3-4% hydrochloric acid solution, dry, then even with other mixing of materials, vacuum pugging, compressing, send in car tunnel furnace and sinter, first at 100-110 DEG C, sinter 4-5 hour, then, at 190-210 DEG C, sinter 120-150 minute, after cooling, take out, the sodium bicarbonate solution putting into 4-6% soaks 3-4 hour, then, the liquor potassic permanganate putting into 300-400ppm soaks 12-15 hour, after taking-up, use clear water edulcoration, dry and get final product.