A kind of porous inorganic microstraining core and preparation method thereofTechnical field
The invention belongs to filtering material technical field, specifically a kind of porous inorganic microstraining 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 porous inorganic microstraining core and preparation method thereof, the present invention has the outstanding advantages such as purification efficiency is high, high temperature resistant, corrosion-resistant, long service life.
The technical solution adopted in the present invention is:
A kind of porous inorganic microstraining core, is characterized in that being made up of the raw material of following weight portion:
Nickel powder 4-5, nano titanium oxide 12-14, copper powder 1-2, silica 20-23, aluminium hydroxide 3-5, alum powder 10-12, diatomite 17-20, crushed crude pearlite 12-14, quartz sand powder 7-9, bentonite in powder 4-6, polyvinyl alcohol 18-21, ethylene glycol 9-12, Celogen Az 1-2, Silane coupling agent KH550 5-8, sodium phosphate trimer 3-5, ammonium chloride 2-3, modified alta-mud 55-65, 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 porous inorganic microstraining core, is characterized in that comprising the following steps:
By each mixing of materials, vacuum pugging, then, sends into subregion sintering in continuous tunnel furnace: a district: 120-135 DEG C, time 3-4 hour; 2nd district: 165-175 DEG C, time 3-4 hour; 3rd district: 710-720 DEG C, time 1-2 hour; 4th district: 1050-1105 DEG C, time 2-3 hour; After cooling, take out, put into running water and soak 3-4 hour, take out and dry and get final product.
Particle in energy absorbed air of the present invention, adsorption efficiency is high, absorption affinity is strong, porosity is high, there is the outstanding advantages such as purification efficiency is high, high temperature resistant, corrosion-resistant, long service life, 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 porous inorganic microstraining core, be made up of the raw material of following weight portion (kilogram):
Nickel powder 4, nano titanium oxide 14, copper powder 1, silica 23, aluminium hydroxide 5, alum powder 12, diatomite 17, crushed crude pearlite 14, quartz sand powder 7, bentonite in powder 6, polyvinyl alcohol 18, ethylene glycol 12, Celogen Az 1, Silane coupling agent KH550 5, sodium phosphate trimer 5, ammonium chloride 3, modified alta-mud 55, 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 porous inorganic microstraining core, comprises the following steps:
By each mixing of materials, vacuum pugging, then, sends into subregion sintering in continuous tunnel furnace: a district: 120-135 DEG C, time 3-4 hour; 2nd district: 165-175 DEG C, time 3-4 hour; 3rd district: 710-720 DEG C, time 1-2 hour; 4th district: 1050-1105 DEG C, time 2-3 hour; After cooling, take out, put into running water and soak 3-4 hour, take out and dry 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 μm caught.