CN108584953A - A kind of method and apparatus that the regeneration of Industry Waste carbon dust prepares activated carbon - Google Patents
A kind of method and apparatus that the regeneration of Industry Waste carbon dust prepares activated carbon Download PDFInfo
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- CN108584953A CN108584953A CN201810581498.3A CN201810581498A CN108584953A CN 108584953 A CN108584953 A CN 108584953A CN 201810581498 A CN201810581498 A CN 201810581498A CN 108584953 A CN108584953 A CN 108584953A
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- carbon
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- industry waste
- activated carbon
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
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Abstract
The present invention relates to a kind of methods and apparatus that the regeneration of Industry Waste carbon dust prepares activated carbon.This approach includes the following steps：1) by Industry Waste carbon dust and bentonite mixing granulation, molding carbon granules is obtained；2) will molding carbon granules carry out regeneration treatment to get.The method that Industry Waste carbon dust regeneration provided by the invention prepares activated carbon, the regeneration of activated carbon is realized using Industry Waste carbon dust and bentonite as raw material, bentonite primarily serves the effect of adhesive, its is at low cost, the proportion of itself is lighter, with big specific surface area, play the role of frame after being combined with useless carbon dust.The activated carbon prepared in this way greatly reduces production cost, and the indexs such as the iodine number of gained regenerated carbon, intensity also obtain a degree of improvement.
Description
Technical field
The invention belongs to the preparation fields of activated carbon, and in particular to a kind of method that the regeneration of Industry Waste carbon dust prepares activated carbon
And equipment.
Background technology
For in the active carbon adsorption equipment of vent gas treatment, such as the vent gas treatment of steel works sintering or nonferrous metallurgy is lived
Property charcoal adsorption plant, can use a large amount of activated carbon, activated carbon will produce after adsorb organic matter a large amount of Industry Waste carbon dusts (give up powder
The waste and old activated carbons such as last carbon, useless granulated carbon).The conventional process mode of these Industry Waste carbon dusts is that landfill or burning are handled, this
Not only utilization rate is low for processing method, but also can cause secondary pollution to environment.
Active carbon regenerating technology is to be given the adsorbate being adsorbed in activated carbon hole using physics or chemical method
It takes out, restores its adsorption capacity.Active carbon regenerating technology not only realizes recycling for resource, but also to the influence of environment
Small, the economic feasibility of commercial Application is good.
Notification number discloses a kind of waste and old activated carbon of utilization for the patent of CN105858650B and manufactures desulphurization denitration activated carbon
Method, this method include waste and old activated carbon is milled, then with tar, potassium hydroxide or magnesia mixing charcoal processing cream, be granulated, dry
It is dry, regeneration and etc..Although this method realizes the regeneration of industrial waste C, but production cost is higher, regenerated carbon
Performance is also to be improved.
Invention content
The purpose of the present invention is to provide a kind of methods that the regeneration of Industry Waste carbon dust prepares activated carbon, to solve existing side
The high problem of production cost existing for method.
The present invention also provides a kind of equipment that the regeneration of Industry Waste carbon dust prepares activated carbon.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of method that the regeneration of Industry Waste carbon dust prepares activated carbon, includes the following steps：
1) by Industry Waste carbon dust and bentonite mixing granulation, molding carbon granules is obtained；
2) will molding carbon granules carry out regeneration treatment to get.
The method that Industry Waste carbon dust regeneration provided by the invention prepares activated carbon, using Industry Waste carbon dust and bentonite as raw material
Realize that the regeneration of activated carbon, bentonite primarily serve the effect of adhesive, it is at low cost, itself proportion it is lighter, have big
Specific surface area plays the role of frame after being combined with useless carbon dust.The activated carbon prepared in this way, greatly reduces and is produced into
This, and the indexs such as the iodine number of gained regenerated carbon, intensity also obtain a degree of improvement.
In step 1), to improve mixing granulation effect, it is preferred that the granularity of the Industry Waste carbon dust is 50-300 mesh.Grain
The excessive useless particle charcoal of diameter can carry out the mixing granulation processing after suitably crushing, then with bentonite.
For improve subsequent granulation effect, optimize the intensity and adsorption effect of regenerated carbon, it is preferred that Industry Waste carbon dust with
Bentonitic mass ratio is 100：(50-100).
The mixing granulation is that granulation is made under conditions of 20-60 DEG C, 10-30MPa.It is specific can be made into cylindrical particle,
Spheric granules etc., preferably cylindrical particle.It is further preferred that a diameter of 2-10mm of the cylindrical particle, length generally exist
Between 1cm-50cm etc..To improve the molding compactness of granulation process, product strength is improved, it is preferred that the industrial waste C
The biodiversity content of powder is below 3%.The Industry Waste carbon dust of collection after dry 5-60h, can be reached water at 20-120 DEG C
After sub-prime amount content requirement, then with bentonite carry out the mixing granulation.
In step 2), to improve the intensity of regenerated carbon, optimizing the regeneration effect of activated carbon, it is preferred that carbon will be molded
After the dry mass content to moisture of grain is no more than 3%, then carry out regeneration treatment.It can reach above-mentioned by existing drying means
Drying effect, -64h for 24 hours can be such as dried on the ground, or the dry 12-64h at 30-300 DEG C, to realize molding carbon
The abundant drying of grain makes the mass content of its moisture be less than 3%.
Regeneration treatment can be handled using existing carbonization-activation integral furnace, or according in patent involved by background technology
Saddle activation furnace carries out regeneration treatment.Here in order to further increase the efficiency of regeneration treatment, regeneration treatment is further decreased
Cost, it is preferred that the regeneration treatment include first carry out charing process, then by after charing process molding carbon granules and water mix
Activation.
Charing process is the carbonization process of the harmful substance of bentonitic charing and the absorption of useless carbon dust to be had during being somebody's turn to do
Evil substance is realized in high temperature carbonization and is desorbed, and can be carried out purified treatment to the tail gas that charing process generates simultaneously, be carbonized with realizing
The harmless discharge of journey.Charing process is generally carried out in the case where completely cutting off air, to make carbonization process fully, effectively carry out, it is preferred that
The temperature of the charing process is 700-1000 DEG C, time 3-8h.
During admixture activation, water plays the role of activation and cooling, is mixed using the activated carbon after water and high temperature carbonization
Reaction generates vapor to realize the activation of activated carbon.When being handled with traditional carbonization-activation integral furnace, vapor is passed through as work
Change gas phase ratio, the regeneration process will carbonize, activation process separately carry out, in addition to can improve carbonization process efficiency and
Charred effect can also utilize the realization that is in direct contact of high temperature active charcoal and liquid water efficiently to activate, not only increase activation effect
Rate, and reduce activating cost.In order to preferably control the progress of activation process, optimize activation effect, it is preferred that molding carbon
The mass ratio of grain and water is 1：(10-30).Through filtering, being drying to obtain regenerated carbon finished product after admixture activation.
The regenerated carbon prepared through the above method has multi-pore structure, iodine number 400-700mg/g, methylene blue
Absorption value is 80-200mg/g, intensity 85-99kg/cm2, comprehensive performance is very excellent.Regeneration method system using the present invention
The cost of standby activated carbon is 1000-2000 yuan/ton, and price can reach 4000-8000 yuan/ton, the production cost of this method
Low, high financial profit is very suitable for the application of industrial enterprise.
A kind of equipment that the regeneration of Industry Waste carbon dust prepares activated carbon, including mixed stirring device, formed granulating device and work
Property charcoal regenerating unit, mixed stirring device include for Industry Waste carbon dust, bentonite feed feed inlet, and be used for mixture
The discharge port of discharge, formed granulating device include feeding mouth and grain export, and discharge port and the molding granulation of mixed stirring device fill
The feeding mouth set is connected, and the active carbon regenerating unit includes carbonizing apparatus and admixture activation device connected in sequence, charing
The entrance of device is connected with the grain export of the formed granulating device；The admixture activation device be provided with carbide entrance and
Filler.
The equipment that Industry Waste carbon dust regeneration provided by the invention prepares activated carbon realizes work using the connection of existing equipment
Efficient, the inexpensive regeneration of the useless carbon dust of industry prepares multi-pore structure activated carbon, and the desulphurization denitration of gained regenerated carbon takes off benzene
Effect is good, remarkable in economical benefits.
The equipment that Industry Waste carbon dust regeneration prepares activated carbon further includes sequentially connected useless toner storage device, the carbon dust that gives up is dry
The outlet of dry device and useless carbon powder filter, useless carbon powder filter is connected with the feed inlet of the mixed stirring device,
It is also associated with dust treatment device on the useless carbon powder filter.
The grain export of formed granulating device is connected by activated carbon drying device with the entrance of carbonizing apparatus.The charing
Exhaust gas processing device and dust treatment device are also associated on device.
The equipment that Industry Waste carbon dust regeneration prepares activated carbon further includes that active carbon filtering device connected in sequence and storage fill
It sets, the entrance of active carbon filtering device is connected with the outlet of admixture activation device.
The equipment that the Industry Waste carbon dust regeneration of the present invention prepares activated carbon, realizes the recycling of useless carbon dust, prepared
Influence of the journey to environment is small, can be effective energy saving, improves the economic benefit of enterprise.
Description of the drawings
Fig. 1 is the connection diagram that the Industry Waste carbon dust regeneration of the present invention prepares the equipment of activated carbon.
Specific implementation mode
Embodiments of the present invention are described further with reference to specific embodiment.
The Industry Waste carbon dust regeneration of the present invention prepares the specific embodiment of the equipment of activated carbon, as shown in Figure 1, including sequentially
The useless toner storage device of connection, useless carbon dust drying device, useless carbon powder filter, mixed stirring device, formed granulating device,
Activated carbon drying device, carbonizing apparatus, admixture activation device, active carbon filtering device and storage device.
Mixed stirring device includes the feed inlet fed for Industry Waste carbon dust, bentonite, and is discharged for mixture
Discharge port, formed granulating device includes feeding mouth and grain export, the discharge port of mixed stirring device and formed granulating device
Feeding mouth is connected, and active carbon regenerating unit includes carbonizing apparatus and admixture activation device connected in sequence, and carbonizing apparatus enters
Mouth is connected with the grain export of formed granulating device；Admixture activation device is provided with carbide entrance and filler.
The outlet of useless carbon powder filter is connected with the feed inlet of mixed stirring device, also connects on useless carbon powder filter
It is connected to dust treatment device.The grain export of formed granulating device is connected by activated carbon drying device with the entrance of carbonizing apparatus
It is logical.Exhaust gas processing device and dust treatment device are also associated on carbonizing apparatus.
In other embodiment, carbonizing apparatus, admixture activation device can use carbonization-activation integral makeup to set and be replaced.
Useless toner storage device uses Conventional cryogenic drying device；Conventional ovens can be used in useless carbon dust drying device；Useless carbon dust filtering dress
Set the double medium filtration sieve that 50-300 mesh can be used；Formed granulating device is using 20-60 DEG C, the high-pressure hydraulic press of 10-30Mpa；Charcoal
Makeup, which is set, can be used conventional retort；Exhaust gas processing device uses desulfuring and denitrifying apparatus.
The Industry Waste carbon dust regeneration of the present invention prepares the embodiment 1 of the method for activated carbon, using following steps：
1) after recycling useless carbon dust, dry 10h, obtains dry useless carbon dust at 50 DEG C.
2) after sieving with 100 mesh sieve dry useless carbon dust, with bentonite in mass ratio 100：100 are stirred 30min, obtain
Mixed powder.
3) mixed powder is made to the cylindricality of a diameter of 2-10mm using high-pressure hydraulic press under conditions of 30 DEG C, 20MPa
Particle.
4) its water content is made to be not more than 3%, then in 800 DEG C in retort in 100 DEG C of dry 12h cylindrical particle
5h is carbonized, high temperature carbonization activated carbon is obtained.
5) high temperature carbonization activated carbon after step 4) being come out of the stove directly with water in mass ratio 1:10 are uniformly mixed, and cross 20 mesh
Sieve fills packet after dry, storage is got product.
The Industry Waste carbon dust regeneration of the present invention prepares the embodiment 2 of the method for activated carbon, using following steps：
In step 1), after useless carbon dust is recycled, dry 5h, obtains dry useless carbon dust at 100 DEG C.
In step 2), after dry useless carbon dust is crossed 50 mesh sieve, with bentonite in mass ratio 100:75 are stirred
30min obtains mixed powder.
In step 3), under conditions of 60 DEG C, 10MPa a diameter of 2-5mm is made in mixed powder using high-pressure hydraulic press
Cylindrical particle.
In step 4), by cylindrical particle in 80 DEG C of dry 48h, its water content is made to be not more than 3%, then in retort in
1000 DEG C of charing 4h, obtain high temperature carbonization activated carbon.
In step 5), high temperature carbonization activated carbon after step 4) is come out of the stove directly with water in mass ratio 1:20 are uniformly mixed,
30 mesh sieve is crossed, packet is filled after dry, storage is got product.
The Industry Waste carbon dust regeneration of the present invention prepares the embodiment 3 of the method for activated carbon, the preparation process base with embodiment 1
This is identical, differs only in：
In step 1), the dry 50h at 25 DEG C.
In step 2), after useless carbon dust is crossed 200 mesh sieve, with bentonite in mass ratio 100:50 are uniformly mixed, and prepare mixing
Powder.
In step 3), granulation conditions are 20 DEG C, 30MPa.
In step 4), the water content for being molded carbon granules is dried to no more than 3% using the method for drying 48h, later 700
DEG C charing 8h.
In step 5), by high temperature carbonization activated carbon and water in mass ratio 1:30 admixture activations cross 50 mesh sieve.
The Industry Waste carbon dust regeneration of the present invention prepares the embodiment 4 of the method for activated carbon, the preparation process base with embodiment 1
This is identical, differs only in：
In step 2), after useless carbon dust is crossed 300 mesh sieve, with bentonite in mass ratio 100:60 are uniformly mixed, and prepare mixing
Powder.
In step 4), by cylindrical particle in 200 DEG C of dry 12h, its water content is made to be not more than 3%, carbonized later at 900 DEG C
7h。
In step 5), by high temperature carbonization activated carbon and water in mass ratio 1:15 are uniformly mixed, and naturally cool to environment
After temperature, 50 mesh sieve is crossed.
The Industry Waste carbon dust regeneration of the present invention prepares the embodiment 5 of the method for activated carbon, the preparation process base with embodiment 1
This is identical, differs only in：
In step 2), after useless carbon dust is crossed 200 mesh sieve, with bentonite in mass ratio 100:80 are uniformly mixed, and prepare mixing
Powder.
In step 4), by cylindrical particle in 70 DEG C of dry 48h, its water content is made to be not more than 3%, carbonized later at 800 DEG C
8h。
In step 5), by high temperature carbonization activated carbon and water in mass ratio 1:25 are uniformly mixed, and naturally cool to environment
After temperature, 50 mesh sieve is crossed.
Test example
This test example detects the performance of regenerated carbon obtained by each embodiment, specific as shown in table 1.
The performance test results of activated carbon obtained by 1 each embodiment of table
| Number | Iodine number, mg/g | Methylenum careuleum absorption value, mg/g | Intensity, kg/cm2 | Moisture, % |
| Embodiment 1 | 600 | 180 | 90 | 2 |
| Embodiment 2 | 650 | 190 | 95 | 3 |
| Embodiment 3 | 700 | 200 | 98 | 1 |
| Embodiment 4 | 680 | 185 | 96 | 2 |
| Embodiment 5 | 685 | 195 | 92 | 1 |
By the testing result of table 1 it is found that the iodine number of the regenerated carbon of embodiment can reach 400-700mg/g, methylene
Base indigo plant absorption value is 80-200mg/g, and intensity reaches 85-99kg/cm2, moisture 1%-5%.In terms of production cost, embodiment
The average unit cost of 1- embodiments 5 is 1000-2000 yuan/ton, and the cost of patent involved by background technology is in 3500-4000 members
Between, in contrast, production cost is low, and reaction process is simple, and gained regenerated carbon has preferably effect in terms of intensity, iodine number
Fruit.As can be seen that the useless carbon resource that manufacturing enterprise may be implemented in the method for the present invention recycles, environment cost accounting is reduced,
To improve Business Economic Benefit.
Claims (9)
1. a kind of method that the regeneration of Industry Waste carbon dust prepares activated carbon, which is characterized in that include the following steps：
1) by Industry Waste carbon dust and bentonite mixing granulation, molding carbon granules is obtained；
2) will molding carbon granules carry out regeneration treatment to get.
2. the method that Industry Waste carbon dust regeneration as described in claim 1 prepares activated carbon, which is characterized in that in step 1), work
The useless carbon dust of industry and bentonitic mass ratio are 100：(50-100).
3. the method that Industry Waste carbon dust regeneration as described in claim 1 prepares activated carbon, which is characterized in that in step 1), institute
Stating mixing granulation is granulated under conditions of 20-60 DEG C, 10-30MPa.
4. the method that Industry Waste carbon dust regeneration as claimed in claim 3 prepares activated carbon, which is characterized in that in step 1), institute
Industry Waste carbon dust is stated at 20-120 DEG C after dry 5-60h, then the mixing granulation is carried out with bentonite.
5. the method that Industry Waste carbon dust regeneration as described in claim 1 prepares activated carbon, which is characterized in that, will in step 2)
After molding carbon granules dries the mass content to moisture no more than 3%, then carry out regeneration treatment.
6. the method that the Industry Waste carbon dust regeneration as described in any one of claim 1-5 prepares activated carbon, which is characterized in that step
It is rapid 2) in, the regeneration treatment include first carry out charing process, then by the molding carbon granules and water admixture activation after charing process.
7. the method that Industry Waste carbon dust regeneration as claimed in claim 6 prepares activated carbon, which is characterized in that the charing process
Temperature be 700-1000 DEG C, time 3-8h.
8. the method that Industry Waste carbon dust regeneration as claimed in claim 6 prepares activated carbon, which is characterized in that molding carbon granules and water
Mass ratio be 1：(10-30).
9. a kind of equipment that the regeneration of Industry Waste carbon dust prepares activated carbon, which is characterized in that including mixed stirring device, molding granulation
Device and active carbon regenerating unit, mixed stirring device include the feed inlet fed for Industry Waste carbon dust, bentonite, Yi Jiyong
In the discharge port of mixture discharge, formed granulating device includes feeding mouth and grain export, the discharge port of mixed stirring device at
The feeding mouth of type prilling granulator is connected, and the active carbon regenerating unit includes carbonizing apparatus and admixture activation dress connected in sequence
It sets, the entrance of carbonizing apparatus is connected with the grain export of the formed granulating device；The admixture activation device is provided with charing
Object entrance and filler.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775975A (en) * | 2019-11-28 | 2020-02-11 | 上海合源环境科技有限公司 | Furnace tube fixed type active carbon drying and regenerating integrated furnace |
| CN111604040A (en) * | 2020-05-26 | 2020-09-01 | 山东清博生态材料综合利用有限公司 | Industrial regeneration process of waste powdered activated carbon |
| CN112758929A (en) * | 2021-02-26 | 2021-05-07 | 上海大学材料基因组工程(萍乡)研究院 | Waste activated carbon regeneration method |
| CN115624952A (en) * | 2022-09-15 | 2023-01-20 | 城康材料技术有限公司 | Novel carbon material and preparation method and application thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN112758929B (en) * | 2021-02-26 | 2023-05-23 | 上海大学材料基因组工程(萍乡)研究院 | Waste activated carbon regeneration method |
| CN115624952A (en) * | 2022-09-15 | 2023-01-20 | 城康材料技术有限公司 | Novel carbon material and preparation method and application thereof |
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Application publication date: 20180928 |