CN103381321A - Air cleaning filter core and preparation method thereof - Google Patents

Abstract

The invention provides an air cleaning filter core and a preparation method thereof. The invention is characterized in that the air cleaning filter core is prepared from the following raw materials by weight: 14 to 16 parts of an ethylene-methyl acrylate copolymer (EMA1125AC), 38 to 45 parts of active carbon powder, 2 to 4 parts of magnesium hydroxide, 3 to 5 parts of calcium hydrate, 6 to 9 parts of ammonium bicarbonate, 4 to 5 parts of ammonium chloride, 4 to 6 parts of ethylene bis(stearamide), 8 to 10 parts of glyceryl monostearate, 4 to 6 parts of dimethicone, 2 to 3 parts of sodium alginate and 35 to 45 parts of modified bentonite. The filter core material provided by the invention enables the removal rate of heavy metals to reach more than 99% and the removal rate of TVOC including formaldehyde and benzene to reach more than 95% and has a degerming and antibiosis rate as high as 99%. The filter core provided by the invention 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 air purifying filter core and preparation method thereof

Technical field

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

Background technology

The 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 an air filter for automobile, is used for filtering the air that enters engine, and the mechanical admixture compositions such as airborne particle, particulate are stopped, prevents that these compositions from entering in gasoline, diesel oil or machine oil, guarantees engine work.Also have a large amount of filtering materials to be used for air handling system, ambient air pollutes very serious now, greatly be detrimental to health, air filting material can be with the various deleterious particle thing absorption of air, prevent from entering people's life or working environment, reduce the human lung to the suction of the harmful substances such as particle, improve people's quality of life, reduce the generation of disease.Some is used 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 is joined function singleness, can not satisfy the requirement of technology development.

Summary of the invention

The purpose of this invention is to provide a kind of air purifying filter core and preparation method thereof.

The technical solution adopted in the present invention is:

A kind of air purifying filter core is characterized in that being made by the raw material of following weight portion:

Ethylene-methyl acrylate copolymer (EMA 1125AC) 14-16, activated carbon powder 38-45, magnesium hydroxide 2-4, calcium hydroxide 3-5, carbonic hydroammonium 6-9, ammonium chloride 4-5, the two hard esteramides 4-6 of ethylene group, stearic acid monoglyceride 8-10, dimethicone 4-6, sodium alginate 2-3, modified alta-mud 35-45.

Described modified alta-mud is made by following methods:

Bentonite is put into 520-540 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 2-3 hour, then put into the 10-12% sodium hydroxide solution and soaked 1-2 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 35-40%, 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%, mix and blend 30-40 minute, and then spray into and be equivalent to bentonite weight 5-7%'s Crosslinking agent TAC, stirred 40-50 minute under 12000-15000 rev/min, and get final product.

The preparation method of described air purifying filter core is characterized in that comprising the following steps:

After each mixing of materials is even, compressing, ageing was placed 4-6 hour, then sent into subregion sintering in car tunnel furnace, and a district: 110-133 ℃, time 150-160 minute; 2nd district: 450-480 ℃, time 50-80 minute; 3rd district: 530-560 ℃, time 40-60 minute; Cooling rear taking-up is sent in 60-70 ℃ of hot water and was soaked 1-2 days, takes out oven dry and get final product.

Material for core provided by the invention can realize that the rate of removing of heavy metal reaches more than 99%, and the clearance rate of the TVOC such as formaldehyde, benzene reaches more than 95%, and the degerming antibiotic rate is up to 99%.The present invention has that purification efficiency is high, high temperature resistant, the pressure loss is little, corrosion-resistant, long service life, remove the outstanding advantages such as airborne micronic dust.

The present invention can be used for the air filtration of air handling system, also can be used for water filtration, can also be used for the air-breathing filtration of automobile filter, be applicable to various environment abominable places.

The specific embodiment

A kind of air purifying filter core, made by the raw material of following weight portion (kilogram):

Ethylene-methyl acrylate copolymer (EMA 1125AC) 14-16, activated carbon powder 38-45, magnesium hydroxide 2-4, calcium hydroxide 3-5, carbonic hydroammonium 6-9, ammonium chloride 4-5, the two hard esteramides 4-6 of ethylene group, stearic acid monoglyceride 8-10, dimethicone 4-6, sodium alginate 2-3, modified alta-mud 35-45.

Described modified alta-mud is made by following methods:

Bentonite is put into 520-540 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 2-3 hour, then put into the 10-12% sodium hydroxide solution and soaked 1-2 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 40%, 18% Dogbane Leaf, 3% alum powder, 3% zeolite powder, 4% tungsten carbide powder, mix and blend 30-40 minute, and then spray into and be equivalent to bentonite weight 7% Crosslinking agent TAC, stirred 40-50 minute under 12000-15000 rev/min, and get final product.

The air purifying filter core preparation method comprises the following steps:

After each mixing of materials is even, compressing, ageing was placed 4-6 hour, then sent into subregion sintering in car tunnel furnace, and a district: 110-133 ℃, time 150-160 minute; 2nd district: 450-480 ℃, time 50-80 minute; 3rd district: 530-560 ℃, time 40-60 minute; Cooling rear taking-up is sent in 60-70 ℃ of hot water and was soaked 1-2 days, takes out oven dry and get final product.

Sample important technological parameters of the present invention is: heat shock resistance: 350 ℃-20 ℃ air-cooled does not once split; 450 ℃ of maximum operation (service) temperatures.The technical indicator of exhaust gas purification and treatment device is: process 250 ℃ of gas maximum temperatures; Capture micronic dust efficient 〉=99%; Outlet discharging soot dust granule substrate concentration≤30mg/m3; The dust granules minimum grain size scope 1-10 μ m that catches.

Claims (2)

1. air purifying filter core is characterized in that being made by the raw material of following weight portion:

Ethylene-methyl acrylate copolymer (EMA 1125AC) 14-16, activated carbon powder 38-45, magnesium hydroxide 2-4, calcium hydroxide 3-5, carbonic hydroammonium 6-9, ammonium chloride 4-5, the two hard esteramides 4-6 of ethylene group, stearic acid monoglyceride 8-10, dimethicone 4-6, sodium alginate 2-3, modified alta-mud 35-45;

Described modified alta-mud is made by following methods:

Bentonite is put into 520-540 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soaked 2-3 hour, then put into the 10-12% sodium hydroxide solution and soaked 1-2 hour, take out, clean the oven dry pulverize with pure water; Add again the aluminium nitride that is equivalent to bentonite weight 35-40%, 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%, mix and blend 30-40 minute, and then spray into and be equivalent to bentonite weight 5-7%'s Crosslinking agent TAC, stirred 40-50 minute under 12000-15000 rev/min, and get final product.

2. the preparation method of air purifying filter core according to claim 1 is characterized in that comprising the following steps:

After each mixing of materials is even, compressing, ageing was placed 4-6 hour, then sent into subregion sintering in car tunnel furnace, and a district: 110-133 ℃, time 150-160 minute; 2nd district: 450-480 ℃, time 50-80 minute; 3rd district: 530-560 ℃, time 40-60 minute; Cooling rear taking-up is sent in 60-70 ℃ of hot water and was soaked 1-2 days, takes out oven dry and get final product.