Filter core of a kind of filtering noxious gas and preparation method thereofTechnical field
The invention belongs to the filtering material technical field, specifically filter core of a kind of filtering noxious gas 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, enters the air of engine for filtration, 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 has a large amount of filtering materials for air handling system, ambient air pollutes very serious now, greatly be detrimental to health, air filting material can be by the various deleterious particle thing absorption of air, prevent from entering people's life or working environment, reduce the suction of human lung to harmful substances such as particles, improve people's quality of life, 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 is joined function singleness, can not meet the requirement of technology development.
Summary of the invention
The purpose of this invention is to provide filter core of a kind of filtering noxious gas and preparation method thereof, 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 technical solution adopted in the present invention is:
A kind of filter core of filtering noxious gas is characterized in that being made by the raw material of following weight portion:
Polyethylene powder 2-4, bamboo charcoal powder 18-20, sepiolite powder 12-14, diatomite 4-6, sodium carbonate 1-2, soybean oil 4-6, starch 2-3, neopelex 1-2, carclazyte 30-35, attapulgite modified 10-12, water are appropriate.
Described attapulgite modifiedly made by following methods:
Attapulgite is put into to 450-500 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soak 1-2 hour, take out, with pure water, clean, dry pulverize; Add again the aluminium nitride that is equivalent to attapulgite weight 35-40%, the gynostemma pentaphylla powder of 20-23%, the aluminium hydroxide of 2-3%, the zirconium fluoride of 2-3%, the graphite of 2-3%, the sodium acid carbonate of 3-4%, mix and blend 30-40 minute, and then spray into the Silane coupling agent KH550 that is equivalent to attapulgite weight 12-15%, stir 60-80 minute under 12000-15000 rev/min, obtain.
The preparation method of the filter core of described filtering noxious gas, it is characterized in that comprising the following steps: starch is added to the water, heating is cooked into pasty state, add wherein soybean oil and neopelex, stir 30-40 minute, then add other residual components, vacuum pugging then,, mud shape thing is put into to mould, the demoulding, under 150-190 ℃ after sintering 180-240 minute, then, send under 1050-1080 ℃ through sintering 210-240 minute, take out, the cooling sodium bicarbonate aqueous solution of putting into 4-5% soaked after 2-3 hour, took out and dried and get final product.
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 for the air filtration of air handling system, also can be for water filtration, can also, for the air-breathing filtration of automobile filter, be applicable to the severe place of various environment.
The specific embodiment
A kind of filter core of filtering noxious gas, by the raw material of following weight portion (kilogram), made:
Polyethylene powder 4, bamboo charcoal powder 20, sepiolite powder 12, diatomite 6, sodium carbonate 1, soybean oil 6, starch 2, neopelex 2, carclazyte 30, attapulgite modified 12, water is appropriate.
Described attapulgite modifiedly made by following methods:
Attapulgite is put into to 450-500 ℃ of calcining 3-4 hour, take out, cooling, put into the 10-12% hydrochloric acid solution and soak 1-2 hour, take out, with pure water, clean, dry pulverize; Add again the aluminium nitride that is equivalent to attapulgite weight 40%, 23% gynostemma pentaphylla powder, 3% aluminium hydroxide, 3% zirconium fluoride, 3% graphite, 4% sodium acid carbonate, mix and blend 30-40 minute, and then spray into the Silane coupling agent KH550 that is equivalent to attapulgite weight 15%, stir 60-80 minute under 12000-15000 rev/min, obtain.
The preparation method of the filter core of filtering noxious gas comprises the following steps:
Starch is added to the water, and heating is cooked into pasty state, adds wherein soybean oil and neopelex, stir 30-40 minute, then, then add other residual components, vacuum pugging, put into mould, the demoulding by mud shape thing, under 150-190 ℃ after sintering 180-240 minute, then, send under 1050-1080 ℃ through sintering 210-240 minute, take out, the cooling sodium bicarbonate aqueous solution of putting into 4-5% soaked after 2-3 hour, took out and dried and get final product.
Sample important technological parameters of the present invention is: heat shock resistance: 950 ℃-20 ℃ air-cooled does not once split; 1250 ℃ of maximum operation (service) temperatures.The technical indicator of exhaust gas purification and treatment device is: process 550 ℃ of gas maximum temperatures; Trapping micronic dust efficiency>=99%; Outlet discharge soot dust granule substrate concentration≤30mg/m3; The dust granules minimum grain size scope 1-10 μ m caught.