CN101653720A - Cellular activated carbon with self-cleaning function and preparation method thereof - Google Patents
Cellular activated carbon with self-cleaning function and preparation method thereof Download PDFInfo
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- CN101653720A CN101653720A CN200910093205A CN200910093205A CN101653720A CN 101653720 A CN101653720 A CN 101653720A CN 200910093205 A CN200910093205 A CN 200910093205A CN 200910093205 A CN200910093205 A CN 200910093205A CN 101653720 A CN101653720 A CN 101653720A
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Abstract
The invention relates to an air purification product and a preparation method thereof, namely cellular activated carbon with a self-cleaning function and a preparation method thereof. The cellular activated carbon with the self-cleaning function is blocky activated carbon with through-holes, and is characterized in that the activated carbon block is prepared from the following components by weight: 50 to 85 parts of activated carbon, 15 to 50 parts of kaolin, 1.5 to 15 parts of inorganic adhesive and 0.5 to 1 part of photocatalyst by mixing, proportioning, mud refining, staleness, extrusion forming and other working procedures. The photocatalyst is added to the cellular activated carbon block, and formaldehyde, benzene, bacteria, virus and other harmful substances adsorbed by the activatedcarbon can be respectively oxidized and decomposed into innocuous substances to be emitted outside by strong oxidizer prepared by the photocatalyst in lighting condition; and therefore the active adsorption of the activated carbon and the passive decomposition of the photocatalyst are skillfully combined, thereby forming complementary advantages and greatly and even indefinitely prolonging the service life of the cellular activated carbon block.
Description
Technical field
The present invention relates to a kind of air clearing product and production method thereof, promptly a kind of cellular activated carbon and manufacture method thereof with self-cleaning function.
Background technology
As everyone knows, active carbon has powerful suction-operated, can be used for the purification of materials such as air, water.Therefore, there have the people that active carbon is placed on to be indoor, wishes to improve IAQ with this.Active carbon mostly is superfine powder, need use the container splendid attire when indoor use, and container has certain inhibition to air with contacting of active carbon.In order to address this problem, the someone has developed cellular activated carbon, promptly active carbon is made porous block., there are two problems in this block absorbent charcoal: the one, and the resinae binder is used in moulding more, and the adsorption capacity of active carbon greatly reduces.The 2nd, the harmful substance of charcoal absorption is difficult to decompose voluntarily, adsorbs saturated back air cleaning ability and significantly reduces.
In addition, according to prior art as can be known, with titanium dioxide is the photocatalyst agent of representative, at visible light particularly under the action of ultraviolet ray, produce free hydroxy and active oxygen by light-catalyzed reaction, harmful substance such as PARA FORMALDEHYDE PRILLS(91,95), benzene and bacterial virus etc. have strong oxidation, it can be decomposed into harmless CO
2And H
2O, people develop multiple photocatalyst air purifying equipment thus.; the scope of photocatalyst generation light-catalyzed reaction is also very limited; and the free hydroxy and the active oxygen that produce do not have suction-operated yet; can only passive wait harmful substance and the arrival of bacterial virus; therefore must there be bigger area just can obtain the effect that purifies air; thereby cost is higher, is difficult to popularize.In addition, have research to think that ultraviolet ray in the environment and free hydroxy also have corrosiveness to the people in recent years, thereby the use of the large tracts of land of photocatalyst also is under suspicion.
Summary of the invention
The purpose of this invention is to provide a kind of cellular activated carbon with self-cleaning function, this charcoal absorption performance is good, long service life, and adsorbed harmful substance can be decomposed into harmless material voluntarily.
Another object of the present invention provides a kind of manufacture method with cellular activated carbon of self-cleaning function.
Above-mentioned purpose is realized by following technical scheme: develop a kind of cellular activated carbon with self-cleaning function, also be a kind of block absorbent charcoal of multi-through hole, be characterized in: this activated carbon block is to be made by active carbon 50-85 part, kaolin 15-50 part, inorganic adhesive 1.5-15 part, photocatalyst agent 0.5-1 part by weight.
Said photocatalyst agent is a titanium dioxide.
Said photocatalyst agent is to carry silver-colored titanium dioxide.
Said inorganic adhesive is a hydroxypropyl methylcellulose.
Said manufacture method with cellular activated carbon of self-cleaning function is: the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive are crossed the above shaking screen of 60 orders, dispel impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.By mould, extrude with the pressure more than the 5Mpa on hydraulic pressure extrusion forming machine, drying promptly obtains the cellular activated carbon piece; Again the nanometer light catalyst agent is sprayed on the cellular activated carbon piece.
Said manufacture method with cellular activated carbon of self-cleaning function is: the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive are crossed the above shaking screen of 60 orders, dispel impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.By mould, extrude with the pressure more than the 5Mpa on hydraulic pressure extrusion forming machine, drying obtains the cellular activated carbon piece; Again with cellular activated carbon piece impregnation process 10-20 second from the nanometer light catalyst solvent.
Said manufacture method with cellular activated carbon of self-cleaning function is: the above shaking screen of 60 orders is crossed in the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive and photocatalyst agent, dispeled impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.By mould, extrude with the pressure more than the 5Mpa on hydraulic pressure extrusion forming machine, drying gets product.
The beneficial effects of the utility model are: owing to increased the photocatalyst agent on the cellular activated carbon piece, under illumination condition, the strong oxidizer oxidation Decomposition that all can be produced by photocatalyst by harmful substances such as the formaldehyde of charcoal absorption, benzene and bacterium, viral isoreactivity material, becoming innocuous substance distributes, thereby the passive decomposition of the active absorption of active carbon and photocatalyst is combined cleverly, form and have complementary advantages, both avoided the abuse of photocatalyst, again significantly even the working life that has prolonged the cellular activated carbon piece indefinite duration.
The specific embodiment
First kind of embodiment: adopt following six steps.
1. screening: with the activated carbon powder 50-85 part more than 200 orders, 800-1000 purpose kaolin 15-50 part, adhesive 1.5-15 part, cross the above shaking screen of 60 orders, dispel impurity.
2. batch mixing: the raw material that will sieve is put into fully mixing of dry powder batch mixer.
3. and material: the material that mixes inserted and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and expected 20-30 minute.
4. refining mud is old: the material of mixing is dropped into rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up with Polypropylence Sheet, seal old processing 24-48 hour; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.
5. extrusion modling: assemble mould on hydraulic pressure extrusion forming machine, generally requiring via densities is 25-150 hole/square inch, and refining mud is extruded with the pressure more than the 5Mpa, promptly obtains the cellular activated carbon piece through air dry or high temperature dehydration again.
6. photocatalyst is handled: the silver-colored titanium dioxide 0.5-1 part of carrying of nanometer light catalyst agent titanium dioxide or adding silver ion is made into solvent, is sprayed on the cellular activated carbon piece.
Experiment situation: get 32 of this outturn samples and 32 in the same shape sample handled without photocatalyst, carry out the adsorption experiment of formaldehyde, benzene, bacterium, virus respectively, Static Detection 24 hours, formaldehyde adsorptive value 〉=73.3%, benzene adsorptive value 〉=71.4% has all reached GB/T18204.26-2000, GB11737-89 standard.The absorption property of bacterium, virus is also more approaching.Detect after the absorption in continuous two weeks in extreme environment in addition, the carbon piece of handling through photocatalyst hangs down 22-85% than undressed formaldehyde, benzene, bacterium, viral level, has significant difference.
Second kind of embodiment:
1. screening impurity elimination: with the activated carbon powder 50-85 part more than 200 orders, 800-1000 purpose kaolin 15-50 part, adhesive 1.5-15 part, cross the above shaking screen of 60 orders, dispel impurity.
2. batch mixing: the raw material that will sieve is put into fully mixing of dry powder batch mixer.
3. and material: the material that mixes inserted and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and expected 20-30 minute.
4. refining mud is old: the material of mixing is dropped into rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up with Polypropylence Sheet, seal old processing 24-48 hour; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.
5. extrusion modling: on hydraulic pressure extrusion forming machine, assemble mould, refining mud is extruded with the pressure more than the 5Mpa, promptly obtain the cellular activated carbon piece through air dry or high temperature dehydration again.
6. photocatalyst is handled.The nanometer light catalyst agent titanium dioxide or the silver-colored titanium dioxide 0.5-1 part of carrying that adds silver ion are made into solvent,, take out dry again with cellular activated carbon piece impregnation process 10-20 second from the nanometer light catalyst solvent.
The experiment situation: get 32 of this outturn samples and 32 in the same shape sample handled without photocatalyst, carry out the adsorption experiment of formaldehyde, benzene, bacterium, virus respectively, Static Detection, 24 hours formaldehyde, benzene adsorptive value are all up to standard and approaching.The absorption property of bacterium, virus is also more approaching.Detect after the absorption in continuous two weeks in extreme environment in addition, the carbon piece of handling through photocatalyst hangs down 28-85% than undressed formaldehyde, benzene, bacterium, viral level, has significant difference.
The third embodiment:
1. screening impurity elimination: with the silver-colored titanium dioxide 0.5-1 part of carrying of the activated carbon powder 50-85 part more than 200 orders, 800-1000 purpose kaolin 15-50 part, adhesive 1.5-15 part, photocatalyst agent titanium dioxide or adding silver ion, cross the above shaking screen of 60 orders, dispel impurity.
2. batch mixing: the raw material that will sieve is put into fully mixing of dry powder batch mixer.
3. and material: the material that mixes inserted and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and expected 20-30 minute.
4. refining mud is old: the material of mixing is dropped into rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up with Polypropylence Sheet, seal old processing 24-48 hour; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.
5. extrusion modling: on hydraulic pressure extrusion forming machine, assemble mould, refining mud is extruded with the pressure more than the 5Mpa, promptly obtain having the cellular activated carbon piece of self-cleaning function again through air dry or high temperature dehydration.
The experiment situation: get 32 of this outturn samples and 32 in the same shape sample handled without photocatalyst, carry out the adsorption experiment of formaldehyde, benzene, bacterium, virus respectively, Static Detection, 24 hours formaldehyde, benzene adsorptive value are all up to standard and approaching.The absorption property of bacterium, virus is also more approaching.Detect after the absorption in continuous two weeks in extreme environment in addition, the carbon piece of handling through photocatalyst hangs down 36-85% than undressed formaldehyde, benzene, bacterium, viral level, has significant difference.
Claims (7)
1. cellular activated carbon with self-cleaning function, also be a kind of block absorbent charcoal of multi-through hole, it is characterized in that: this activated carbon block is to be made by active carbon 50-85 part, kaolin 15-50 part, inorganic adhesive 1.5-15 part, photocatalyst agent 0.5-1 part by weight.
2. the cellular activated carbon with self-cleaning function according to claim 1 is characterized in that: said photocatalyst agent is a titanium dioxide.
3. the cellular activated carbon with self-cleaning function according to claim 1 is characterized in that: said photocatalyst agent is to carry silver-colored titanium dioxide.
4. the cellular activated carbon with self-cleaning function according to claim 1 is characterized in that: said inorganic adhesive is a hydroxypropyl methylcellulose.
5. the cellular activated carbon with self-cleaning function according to claim 1, it is characterized in that: said manufacture method with cellular activated carbon of self-cleaning function is: the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive are crossed the above shaking screen of 60 orders, dispel impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again.By mould, extrude with the pressure more than the 5Mpa on hydraulic pressure extrusion forming machine, drying promptly obtains the cellular activated carbon piece; Again the nanometer light catalyst agent is sprayed on the cellular activated carbon piece.
6. the cellular activated carbon with self-cleaning function according to claim 1, it is characterized in that: said manufacture method with cellular activated carbon of self-cleaning function is: the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive are crossed the above shaking screen of 60 orders, dispel impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again, on hydraulic pressure extrusion forming machine, pass through mould, extrude with the pressure more than the 5Mpa, drying obtains the cellular activated carbon piece; Again with cellular activated carbon piece impregnation process 10-20 second from the nanometer light catalyst solvent.
7. the cellular activated carbon with self-cleaning function according to claim 1, it is characterized in that: said manufacture method with cellular activated carbon of self-cleaning function is: the above shaking screen of 60 orders is crossed in the activated carbon powder more than 200 orders, 800-1000 purpose kaolin, adhesive and photocatalyst agent, dispeled impurity; Put into fully mixing of dry powder batch mixer again, insert again and the material machine in, progressively add the water of the heavy 70-85% of pan feeding and material 20-30 minute; Treat to drop into again behind the mixing and rub refining mud in the soil kneader repeatedly 2-3 time, extrude the mud section and wrap up, seal old processing 24-48 hour with Polypropylence Sheet; Put in the soil kneader refining mud 2 times again through the mud section of old processing, take out the air in the pug simultaneously, its vacuum is reached more than the 0.04Mpa, extrude with the Polypropylence Sheet parcel stand-by from the soil kneader outlet again, on hydraulic pressure extrusion forming machine, pass through mould, extrude with the pressure more than the 5Mpa, drying gets product.
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| CN2009100932058A CN101653720B (en) | 2009-09-22 | 2009-09-22 | Cellular activated carbon with self-cleaning function and preparation method thereof |
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| CN2009100932058A CN101653720B (en) | 2009-09-22 | 2009-09-22 | Cellular activated carbon with self-cleaning function and preparation method thereof |
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