A kind of activated carbon fibre filtering core and preparation method thereofTechnical field
The invention belongs to filtering material technical field, specifically a kind of activated carbon fibre filtering 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 activated carbon fibre filtering core and preparation method thereof, the present invention have that purification efficiency is high, high temperature resistant, the pressure loss is little, the outstanding advantages such as corrosion-resistant, long service life.
The technical solution adopted in the present invention is:
A kind of activated carbon fibre filtering core, is characterized in that being made up of the raw material of following weight portion:
Petroleum sodium sulfonate 3-4, NACF 12-14, clay 8-10, carclazyte 12-14, silver nitrate 1-2, polyvinyl alcohol 5-7, boronation two molybdenum 2-3, ammonium molybdate 1-2, zinc powder 1-2, iron powder 1-2, brown sugar 4-6, Paris white 5-7, modified alta-mud 10-15, 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 brown sugar 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%'scrosslinking agent TAC, under 12000-15000 rev/min, stir 40-50 minute, to obtain final product.
The preparation method of described activated carbon fibre filtering core, is characterized in that comprising the following steps:
Clay, carclazyte are with 10-12% salt after acid soak 2-3 hour, and at 450-480 DEG C, roasting 3-4 hour, is ground into powder; Polyvinyl alcohol is used suitable quantity of water heating for dissolving, then with other each mixing of materials evenly after, vacuum pugging, compressing, then, send in car tunnel furnace and sinter, first roasting 2-3 hour at 500-560 DEG C, then, again with 5-8 DEG C/min of ramp to 1060-1100 DEG C, sintering 3-4 hour, cooling after take out, put into after clear water soaks 1-2 days, take out and dry.
In the present invention, silver nitrate has bactericidal action, active carbon has the effect of good adsorbing contaminant particulate simultaneously, filer element strength is high, not cracky, 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 activated carbon fibre filtering core, be made up of the raw material of following weight portion (kilogram):
Petroleum sodium sulfonate 3, NACF 14, clay 10, carclazyte 12, silver nitrate 2, polyvinyl alcohol 5, boronation two molybdenum 3, ammonium molybdate 1, zinc powder 2, iron powder 2, brown sugar 4, Paris white 7, modified alta-mud 15, 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%, brown sugar, 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 activated carbon fibre filtering core, comprises the following steps:
Clay, carclazyte are with 10-12% salt after acid soak 2-3 hour, and at 450-480 DEG C, roasting 3-4 hour, is ground into powder; Polyvinyl alcohol is used suitable quantity of water heating for dissolving, then with other each mixing of materials evenly after, vacuum pugging, compressing, then, send in car tunnel furnace and sinter, first roasting 2-3 hour at 500-560 DEG C, then, again with 5-8 DEG C/min of ramp to 1060-1100 DEG C, sintering 3-4 hour, cooling after take out, put into after clear water soaks 1-2 days, take out and dry.
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 μm caught.