CN113413871B - Terahertz automatic regeneration activated carbon and preparation method and application thereof - Google Patents
Terahertz automatic regeneration activated carbon and preparation method and application thereof Download PDFInfo
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Abstract
The invention discloses terahertz automatic regeneration active carbon and a preparation method and application thereof, wherein the terahertz automatic regeneration active carbon comprises the following raw materials in parts by weight: 1-60 parts of terahertz powder, 60-100 parts of activated carbon powder and 3-15 parts of adhesive. The preparation method comprises the steps of metering, mixing, extrusion molding, cooling, drying, heating, sintering and activating, terahertz activation (the molded active carbon is placed into a terahertz irradiation box or a terahertz irradiation production line for activation for 1-10 minutes, so that the adsorption capacity of the active carbon can be enhanced, and the attenuation of terahertz powder performance caused in the heating process can be further compensated), detection and packaging. The terahertz automatic regeneration activated carbon disclosed by the invention has the advantages that the trouble of manual maintenance and regeneration is avoided, and the service life of the activated carbon is greatly prolonged. Meanwhile, the performance of the activated carbon and the terahertz powder is better than that of the common activated carbon, and the antibacterial and antivirus capacity is additionally provided, so that the method is particularly suitable for occasions needing microorganism protection.
Description
Technical Field
The invention belongs to the technical fields of active carbon, environment, sanitation, health and terahertz, and particularly relates to terahertz automatic regenerated active carbon and a preparation method and application thereof.
Background
Activated carbon is widely used for gas and liquid purification. In general, the replacement period of the activated carbon is about 30-180 days, and as the activated carbon product is continuously adsorbed, the micropores of the activated carbon can be filled with organic matters in gas or liquid, so that the activated carbon loses the re-adsorption capacity, and then new activated carbon needs to be replaced. For the used activated carbon, the used activated carbon can be taken under the outdoor sun for insolation, harmful substances adsorbed in the pores can be released, and the released activated carbon restores the hollow pore structure, so that the process is commonly called activated carbon regeneration. Of course, the life of the activated carbon is also limited, and the activated carbon can not be repeatedly regenerated endlessly, and in general, the life of the common activated carbon is only about one year at maximum.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides terahertz automatic regenerated active carbon, a preparation method and application thereof, and terahertz automatic regenerated active carbon and a preparation method thereof (10 in figure 2), namely, terahertz powder and active carbon powder are mixed to prepare the formed active carbon.
In order to achieve the aim of automatic regeneration, the invention adopts the following technical scheme:
the terahertz automatic regeneration activated carbon comprises the following raw materials in parts by weight: 1-60 parts of terahertz powder, 60-100 parts of activated carbon powder and 1-100 parts of adhesive.
Further, the terahertz powder adopts Chinese patent ZL201910527213.2 and the invention name of 'terahertz material with antibacterial, fresh-keeping and deodorizing effects', and a preparation method and application thereof.
Further, the activated carbon powder is prepared by crushing coal, wood dust, rice husk, peanut shell, plant, bark, straw and organic matters into powder, wherein the hemp stalk, walnut shell, coconut shell, palm shell, fruit shell or asphalt.
Further, the adhesive comprises 5-10% of hydroxymethyl cellulose solution, coal tar, phenolic resin, asphalt powder, CMC, tetrafluoroethylene solution, polyester powder, attapulgite powder, teflon powder, glycerol water solution or beet molasses by mass percent.
The preparation method of the terahertz automatic regeneration active carbon (taking compression molding cylindrical active carbon as an example, fig. 3) comprises the following steps (filter cotton, a sheet filter (core) and a round tube filter (core) have respective processing equipment and processes, but are similar to the following steps in the steps of batching and terahertz activation):
(1) Batching; by metering, the active carbon powder, the terahertz powder and the adhesive are prepared according to the formula proportion of the product, so that the proportions of various raw materials are ensured to meet the formula requirement of the product;
(2) Mixing: stirring various raw and auxiliary materials uniformly by a stirrer;
(3) Extrusion molding: extruding or molding a die hole of a die head of a material extruding machine;
(4) Cooling, drying, heating, sintering and activating: according to different processes (high-temperature sintering and compression molding are commonly used), different adhesives are selected, the characteristics of the adhesives are different, and additional gas protection, pressurization, heating or cooling processing is needed;
(5) Terahertz activation: the formed active carbon is put into a terahertz irradiation box or a terahertz irradiation production line (26) for activation for 1-10 minutes, so that the adsorption capacity of the active carbon can be enhanced, and the attenuation of the terahertz powder performance caused by the heating process can be further compensated;
(6) And (5) detecting and packaging.
Further, when the materials are mixed in the step (2), according to different characteristics of the adhesive, the temperature of the mixed materials needs to be controlled, for example, the temperature of the coal tar needs to be 70-90 ℃.
And (3) in the step (4), when the adhesive is columnar active carbon prepared from hydroxymethyl cellulose solution, treating for 30 minutes under the conditions of 400 ℃ nitrogen and 2 Mpa.
Further, the terahertz automatic regeneration active carbon finished product forms comprise columnar, spherical, honeycomb bricks, filter cotton, carbon fiber cloth, carbon fiber felt, sheet-shaped filters (cores) and round tube filters (cores).
Specific examples are: the terahertz automatic regeneration columnar activated carbon comprises the following raw materials in parts by weight: 1-60 parts of terahertz powder, 60-100 parts of activated carbon powder and 3-15 parts of hydroxymethyl cellulose solution with mass fraction of 5-10%. Mixing the two powders, regulating humidity with hydroxymethyl cellulose solution, extruding column-shaped active carbon by hydraulic press, performing high temperature (400 deg.C) and high pressure (2 Mpa, 30 min) in nitrogen, performing performance improvement and reinforcement by terahertz irradiation production line, inspecting, and packaging.
The terahertz powder disclosed by the invention adopts a terahertz material with antibacterial, fresh-keeping and deodorizing effects, a preparation method and application thereof, and the terahertz material with antibacterial, fresh-keeping and deodorizing effects is disclosed in China patent ZL 201910527213.2.
The usual adhesives are: high temperature sintered activated carbon binders and compression molded activated carbon binders, which are currently commonly used in the activated carbon industry, for example: coal tar, phenolic resin, asphalt powder, CMC, tetrafluoroethylene solution, polyester powder, attapulgite powder (500-800 ℃), teflon powder, glycerol water solution, beet molasses, hydroxymethyl cellulose solution (400 ℃), and the like.
The step (5) may be a terahertz irradiation production line of patent application No. 201920915589.6, wherein the main component is a terahertz wave generator (27) of patent application No. 201910527170.8, a multipurpose terahertz wave electronic generator, and the treatment frequency is 1x10 11 、5.5x10 11 、1.1x10 12 、5.5x10 12 、1.1x10 13 、5x10 13 Hz。
The terahertz treatment box (terahertz wave electron generator) used for terahertz activation has a treatment frequency of 1x10 11 、5.5x10 11 、1.1x10 12 、5.5x10 12 、1.1x10 13 、5x10 13 Hz. The terahertz treatment box adopts a terahertz wave electron generator (a small terahertz irradiation device) disclosed in application number 2019105271708 and the invention name of a multipurpose terahertz wave electron generator.
The invention includes the use of the following terahertz auto-regeneration activated carbon products and applications (fig. 2):
(1) Terahertz automatic regenerated coal activated carbon
Coal columnar granular active carbon-gas separation and refining, solvent recovery, flue gas purification, desulfurization and denitrification, water purification, sewage treatment, environmental protection and the like.
Coal spherical granular active carbon-carbon molecular sieve, gas mask, gas separation and refining, military adsorption, etc.
Formed active carbon-water purifying filter element, water purifying filter stick, clear honeycomb body, environmental protection, filtration and adsorption, etc.
(2) Terahertz automatic regeneration wood activated carbon
Wood column-like granular active carbon-gas separation and refining, gold extraction, water purification, food and beverage decolorization, etc.
Wood spherical granular active carbon-beverage refining, gas separation, etc.
Formed active carbon-water purifying filter element, water purifying filter stick, clear honeycomb body, environmental protection, filtration and adsorption, etc.
(3) Terahertz automatic regeneration synthetic material activated carbon
Synthetic columnar material particle active carbon-gas separation and purification, water purification, flue gas purification, sewage treatment, environmental protection, etc.
Formed active carbon-water purifying filter element, water purifying filter stick, clear honeycomb body, environmental protection, filtration and adsorption, etc.
The terahertz automatic regeneration active carbon product is particularly suitable for air purification, and the application environment comprises a mask, a room, a bathroom, a closestool, decoration, an automobile, an elevator, a refrigerator and the like.
The terahertz powder is made into a terahertz radiation plastic (rubber, silicon rubber) frame, and the activated carbon in the terahertz radiation plastic frame can be automatically regenerated (figure 7). At the moment, terahertz master batches can be used, and the patent application number 202010709271.X is a terahertz plastic master batch with the functions of antibiosis, mildew resistance, deodorization and freshness preservation.
The application method and the adsorption performance of the terahertz automatic regeneration activated carbon product are compared with those of common activated carbon:
(1) The use method of the two is consistent, and the maintenance method is different. The activated carbon can only work continuously for about 30-180 days, and can be used continuously after being regenerated, and the service life is 0.5-2 years. Terahertz can automatically decompose pollutants so that the continuous working time of the activated carbon is equal to the service life of the activated carbon.
(2) The service lives of the two are different. If the activated carbon is used for absorbing organic matters, the service life of the terahertz automatic regenerated activated carbon can reach 10-20 years. If the working tasks of the activated carbon comprise filtering substances such as dust, the service life of the terahertz automatic regeneration activated carbon is greatly shortened, and the terahertz automatic regeneration activated carbon is not much different from that of the common activated carbon, but does not need artificial regeneration in the service life.
(3) The application ranges are slightly different. The method has particularly good deodorizing effect on occasions needing deodorizing and bacteriostasis, such as application occasions of deodorizing in rooms and refrigerators, ventilating and deodorizing in toilets, bacteriostasis masks, gas masks and the like, and can fully exert the respective advantages of high deodorizing speed of active carbon, long effective period of terahertz products, remarkable bacteriostasis effect and the like.
The terahertz automatic regeneration activated carbon has the following advantages:
(1) Avoiding the trouble of manual maintenance and regeneration.
(2) Greatly prolongs the service life of the active carbon.
(3) Meanwhile, the active carbon and the terahertz powder have the performances, and compared with the common active carbon, the active carbon additionally provides antibacterial and antivirus capabilities, and has special significance for occasions needing microorganism protection.
(4) Different formulas can be designed according to continuous work and intermittent work, so that the terahertz powder and the activated carbon powder can play the best effect.
(5) The application range is wide, and the industrial revolution can be brought to a plurality of industries.
(6) Terahertz powder is safe, free of nuclear radiation and safe in food contact.
(7) Compared with the production process of the production flow and the process and the molded active carbon, only the steps of material mixing, material mixing and activation are different, and key production equipment and processes are the same.
(8) Neither the production process nor the waste causes (or generates) additional pollution to the environment.
Drawings
FIG. 1 is a principle of regeneration of terahertz automatic regenerated active carbon;
FIG. 2 shows an example of the production, commonly used products and applications of terahertz automatic regeneration activated carbon;
FIG. 3 is a terahertz automatic regeneration cylindrical activated carbon production line;
FIG. 4 is a diagram of a smart toilet deodorizing filter system;
FIG. 5 is a spray booth air treatment system;
FIG. 6 shows a high-speed long-acting deodorizing device (terahertz automatic regenerated active carbon can be placed in a refrigerator or an air conditioner) for a room, a refrigerator or a bookcase;
fig. 7 shows a high-speed long-acting deodorizing device (terahertz frame for regenerating primary active carbon, which can be placed in a refrigerator or an air conditioner) for a room, a refrigerator or a bookcase.
1. Terahertz automatic regeneration active carbon, 2 parts of terahertz powder, 3 parts of active carbon, 4 parts of adsorbed pollutants, 5 parts of terahertz waves, 6 parts of raw material, namely coconut shell (example), 7 parts of raw active carbon particles, 8 parts of raw active carbon powder, 9 parts of adhesive, namely hydroxymethyl cellulose (example), 10 parts of prepared (produced) terahertz automatic regeneration active carbon, 11 parts of terahertz automatic regeneration cylindrical active carbon, 12 parts of terahertz automatic regeneration cylindrical carbon filling filter core, 13 parts of terahertz automatic regeneration active carbon, 14 parts of terahertz automatic regeneration food odor removing bag, 15 parts of terahertz automatic regeneration active carbon honeycomb bricks, 16 parts of terahertz automatic regeneration adsorption filter, 17 parts of terahertz automatic regeneration tubular active carbon, 18 parts of terahertz automatic regeneration tubular active carbon filter core the terahertz automatic regeneration active carbon comprises a terahertz automatic regeneration active carbon carving, a terahertz automatic regeneration active carbon blanket, a terahertz automatic regeneration primary active carbon filter core, a terahertz automatic regeneration medium-grade active carbon filter core, a terahertz automatic regeneration active carbon cloth, a terahertz automatic regeneration active carbon mask, a terahertz automatic regeneration active carbon sponge and a terahertz automatic regeneration active carbon sponge, wherein the terahertz automatic regeneration active carbon cloth is a terahertz active carbon cloth, a terahertz active carbon cloth and a terahertz active carbon sponge. Terahertz radiation production line (26), terahertz wave electronic generator (27), active carbon extruder (28), feeder (29), mixer (30), intelligent toilet seat (31), through-flow fan (32), air outlet (33), standard discharge (34), muffler (35), induced draft fan (36), dry filter (37), polluted air (38), water curtain cabinet (39), paint shop) 40. The odor removing box 41, the vent hole 42, the non-woven fabric bag 43 and the resin base material.
Detailed Description
The invention will be further illustrated with reference to specific examples. It is to be understood that the following examples are intended to illustrate the present invention and are not to be construed as limiting the scope of the invention, and that numerous insubstantial modifications and adaptations can be made by those skilled in the art in light of the foregoing disclosure.
Products that are necessarily food-grade, medical-grade materials may be terahertz materials of a corresponding grade, and will not be described in the examples.
Example 1
The terahertz automatic regeneration columnar activated carbon comprises the following raw materials in parts by weight: 40 parts of terahertz powder, 90 parts of activated carbon powder and 10 parts of hydroxymethyl cellulose solution with mass fraction of 5-10%. Mixing the two powders, humidifying by using a hydroxymethyl cellulose solution, extruding columnar active carbon by a hydraulic press, carrying out high-temperature (400 ℃) high-pressure (2 Mpa and 30 minutes) in nitrogen, carrying out performance improvement and reinforcement (carrying out activation for 1-10 minutes) by using a terahertz irradiation production line, and inspecting, packaging and leaving a factory.
The terahertz powder disclosed by the invention adopts a terahertz material with antibacterial, fresh-keeping and deodorizing effects, a preparation method and application thereof, and the terahertz material with antibacterial, fresh-keeping and deodorizing effects is disclosed in China patent ZL 201910527213.2.
The terahertz automatic regeneration activated carbon raw materials of the embodiment are raw activated carbon such as coal, wood dust, rice husk, peanut shell, plants, bark, straw, organic matters, hemp stalk, walnut shell, coconut shell, palm shell, fruit shell, asphalt and the like, and are crushed into powder.
The step (5) can adopt a terahertz irradiation production line with the patent application number 201920915589.6, wherein the main component is a multi-purpose terahertz wave electron generator with the patent application number 201910527170.8The terahertz wave generator 27 has a processing frequency of 1x10 11 、5.5x10 11 、1.1x10 12 、5.5x10 12 、1.1x10 13 、5x10 13 Hz。
The step (5) can also adopt a terahertz treatment box (terahertz wave electron generator) with the treatment frequency of 1x10 11 、5.5x10 11 、1.1x10 12 、5.5x10 12 、1.1x10 13 、5x10 13 Hz. The terahertz treatment box adopts a terahertz wave electron generator (a small terahertz irradiation device) disclosed in application number 2019105271708 and the invention name of a multipurpose terahertz wave electron generator.
Example 2
The terahertz automatic regeneration columnar activated carbon comprises the following raw materials in parts by weight: 1 part of terahertz powder, 60 parts of activated carbon powder and 3 parts of hydroxymethyl cellulose solution with mass fraction of 5-10%.
The preparation method of the terahertz automatic regeneration columnar activated carbon in the embodiment is the same as that in embodiment 1.
Example 3
The terahertz automatic regeneration columnar activated carbon comprises the following raw materials in parts by weight: 60 parts of terahertz powder, 100 parts of activated carbon powder and 15 parts of hydroxymethyl cellulose solution with mass fraction of 5-10%.
The preparation method of the terahertz automatic regeneration columnar activated carbon in the embodiment is the same as that in embodiment 1.
Example 4
The terahertz automatic regeneration columnar activated carbon comprises the following raw materials in parts by weight: 20 parts of terahertz powder, 80 parts of activated carbon powder and 8 parts of hydroxymethyl cellulose solution with mass fraction of 5-10%.
The preparation method of the terahertz automatic regeneration columnar activated carbon in the embodiment is the same as that in embodiment 1.
In order to more easily explain the application of the terahertz powder in the activated carbon industry, the activated carbon is divided into primary activated carbon 7 and formed activated carbon, and the terahertz powder can only be applied to the manufacturing process of the formed activated carbon at present to manufacture the activated carbon with the automatic regeneration function. The active carbon is divided into raw materials: the raw materials of the coal-based activated carbon, the wood-based activated carbon and the synthetic material (asphalt) activated carbon comprise coal, wood chips, rice hulls, peanut shells, plants, barks, straws, organic matters, hemp stems, walnut shells, coconut shells 6, palm shells, fruit shells, asphalt and other materials. After the materials are made into active carbon, the active carbon is crushed into forms of particles, granules, powder and the like, namely the primary active carbon 7; the active carbon powder is added with the adhesive 9 to prepare the formed active carbon, and if the terahertz powder 2 is added into the active carbon powder, the terahertz automatic regeneration active carbon is prepared.
Application example 1
Terahertz automatic regeneration active carbon honeycomb brick and adsorption filter
For a maintenance-free adsorption filter, a smart toilet deodorizing filter (fig. 4).
A cross-flow fan 32 is arranged in the intelligent closestool 31 with the ventilation and odor removal functions, odor in the closestool is pumped out, odor molecules are adsorbed by the activated carbon honeycomb bricks 15, and then the odor molecules are blown out from an air outlet 33. The odor removing effect of the activated carbon honeycomb brick is obviously attenuated only by one or two months, and the odor removing effect can last for 1-5 years after the honeycomb brick is made of the automatic regenerated activated carbon to replace the original activated carbon honeycomb brick.
The manufacturing process of the automatically regenerated active carbon honeycomb brick is as follows:
coal activated carbon powder (50 parts) +terahertz powder (2 parts) +attapulgite powder (50 parts), and water are added to mix and stir into mud. Making porous brick blank by using a forming machine, and drying in shade to obtain dry blank. The dry blank was charged into an airtight oven, the oven temperature was raised to 700 ℃ over 7 hours, then slowly raised to 850 ℃ over 3 hours, and cooled with the oven. And (5) carrying out reinforced irradiation on the activated carbon before delivery through a terahertz irradiation production line, and detecting the delivery of the packaged finished product. The production process is not different from the traditional process of the activated carbon brick except that terahertz powder is added during mixing and irradiation is enhanced after discharging.
Application example 2
Application of terahertz automatic regeneration active carbon in paint shop (figure 5)
The air treatment system of the paint shop uses three filters, namely a primary filter element, a medium-grade filter element and a honeycomb activated carbon brick 15, wherein the first two filter elements can use terahertz automatic regenerated activated carbon blanket materials to form a primary activated carbon filter element 21 and a medium-grade activated carbon filter element 22.
The manufacturing process of the terahertz automatic regeneration activated carbon cloth comprises the steps of mixing activated carbon powder and terahertz powder according to the proportion of 100 (1-10), producing the activated carbon powder according to the original process of an activated carbon non-woven fabric, and carrying out reinforced irradiation on a finished product.
The terahertz automatic regeneration materials enable the service life of the filter element for jet workshop treatment to be prolonged from three months to half a year of the primary filter element, one year of the middle filter element and 2-3 years of the honeycomb activated carbon brick.
Application example 3
Terahertz automatic regeneration active carbon antibacterial deodorizing mask (active carbon cloth 20)
The mask is odorless after being continuously used for 8-12 hours, and has longer service life and safer than the common mask, and is good for doctors.
A terahertz automatic regeneration active carbon cloth layer is added in the melt-blown cloth of the existing mask, and terahertz waves can eliminate bacteria attached to materials of each layer on the mask, so that the mask is odorless after being worn for a long time.
The manufacturing process of the terahertz automatic regeneration activated carbon cloth comprises the steps of mixing activated carbon powder and terahertz powder according to the proportion of 100 (1-10), producing the activated carbon powder according to the original process of an activated carbon non-woven fabric, and carrying out reinforced irradiation on a finished product.
Application example 4
Terahertz automatic regeneration activated carbon deodorizer (columnar carbon, fig. 6).
The active carbon adsorbs bacteria, mould spores and peculiar smell molecules, and terahertz waves decompose the bacteria, the mould spores and the peculiar smell molecules, so that the respective advantages of two main materials are fully exerted: the active carbon has quick response and long terahertz duration.
The forced ventilation effect is better by using the fan. Forced ventilation can make the deodorizing effect take effect faster and is irrelevant to the regeneration effect.
The odor remover can be used in rooms, refrigerators, elevators and other occasions.
The service life of the deodorizing patch can be as long as 10 years when the deodorizing patch is used for deodorizing the refrigerator and the terahertz refrigerator.
The following table compares the deodorizing methods of various refrigerators:
the terahertz automatic regeneration active carbon deodorizing device is used for room air treatment and can effectively remove formaldehyde.
The production process of the terahertz columnar activated carbon is basically consistent with that of the traditional columnar activated carbon, but the following differences are included:
mixing the active carbon powder and the terahertz powder according to the proportion of 100 (1-10);
and carrying out reinforced irradiation on the formed particles by a terahertz irradiation production line.
Application example 5
Terahertz automatic regeneration active carbon automatic regeneration frame (2, 43 in fig. 7)
This is an atypical application of this patent, with the same range of application and effect as the terahertz auto-regeneration activated carbon deodorizer of example 4.
The frame uses plastic and terahertz powder, and the terahertz powder adopts terahertz material with antibacterial, fresh-keeping and deodorizing effects disclosed in Chinese patent ZL201910527213.2 and the invention name as well as a preparation method and application thereof, or plastic master batch with antibacterial, mildew-proof and deodorizing functions and the preparation method thereof as listed in patent application No. 202010709271. X.
The frame size is not too large. The maximum distance between the activated carbon and the frame is kept at 50-70 mm.
The forced ventilation effect is better by using the fan. Ventilation can accelerate the deodorizing speed, and is irrelevant to the terahertz automatic regeneration effect.
The terahertz powder used in the invention adopts Chinese patent ZL201910527213.2, is named as a terahertz material with antibacterial, fresh-keeping and deodorizing effects, and a preparation method and application thereof, and the terahertz material (2 in figure 1) with antibacterial, fresh-keeping and deodorizing effects is disclosed, and can radiate terahertz waves 5 with a certain dosage, can effectively decompose various organic matters and kill bacteria and mold 4, and organic matters adsorbed by adjacent activated carbon can be decomposed by the terahertz waves after a period of time. The advantage of doing so is that the activated carbon catches microorganism spore, organic matter and volatilizable component with faster speed, and microorganism spore, organic matter volatilizable component are killed and decomposed by terahertz again, so the maintenance-free activated carbon is obtained, has higher deodorization speed and sterilization effect than simple terahertz material, can reduce its maintenance cost by a wide margin compared with traditional activated carbon, and the life of activated carbon is prolonged by a multiple (1-40 times).
The adsorption performance of the activated carbon product can be improved through a terahertz irradiation production line, and the terahertz irradiation production line adopts a patent product ZL201920915589.6.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The preparation method of the terahertz automatic regeneration activated carbon is characterized by comprising the following steps of:
(1) Batching; by metering, the active carbon powder, the terahertz powder and the adhesive are prepared according to the formula proportion of the product, so that the proportions of various raw materials are ensured to meet the formula requirement of the product;
(2) Mixing: stirring various raw and auxiliary materials uniformly by a stirrer (30);
(3) Extrusion molding: extruding or molding a die hole of a die head of a material extruding machine (28);
(4) Cooling, drying, heating, sintering and activating: different adhesives are selected according to different processes, and the adhesives have different characteristics and need additional gas protection, pressurization, heating or cooling processing;
(5) Terahertz activation: the formed active carbon is put into a terahertz irradiation box or a terahertz irradiation production line (26) for activation for 1-10 minutes, so that the adsorption capacity of the active carbon can be enhanced, and the attenuation of the terahertz powder performance caused by the heating process can be further compensated;
(6) Detecting and packaging;
the terahertz automatic regeneration activated carbon comprises the following raw materials in parts by weight: 1-60 parts of terahertz powder, 60-100 parts of activated carbon powder and 1-100 parts of adhesive.
2. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: the activated carbon powder is prepared by pulverizing plants or shells into powder.
3. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: the activated carbon powder is prepared by crushing coal, wood dust, rice husk, peanut shell, bark, straw, organic matters, hemp stalk, walnut shell, coconut shell, palm shell or asphalt into powder.
4. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: the adhesive comprises 5-10% of hydroxymethyl cellulose solution, coal tar, phenolic resin, asphalt powder, CMC, tetrafluoroethylene solution, polyester powder, attapulgite powder, teflon powder, glycerol water solution or beet molasses.
5. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: when the step (2) is used for mixing materials, the temperature of the mixed materials needs to be controlled according to different characteristics of the adhesive.
6. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: and (4) when the adhesive is hydroxymethyl cellulose solution to prepare columnar active carbon, the columnar active carbon is treated for 30 minutes under the condition of 400 ℃ nitrogen and 2 Mpa.
7. The method for preparing terahertz automatic regeneration activated carbon according to claim 1, which is characterized in that: the terahertz automatic regeneration active carbon finished product comprises columnar, spherical, honeycomb bricks, filter cotton, carbon fiber cloth, carbon fiber felt, a sheet filter core and a round tube filter core.
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