Aerosol fluidized activated carbon modification equipment and method

Abstract

The invention relates to the technical field of activated carbon modification, in particular to aerosol fluidized activated carbon modification equipment and method. The aerosol fluidized activated carbon modification equipment comprises an aerosol generator, an activated carbon modification tank, a Venturi bin, an air inlet pipeline, an induced draft fan, a circulating pipeline and a drying device. Gas is used as a carrier to carry aerosol and gaseous fluidized modified activated carbon particles, complete and uniform impregnation can be achieved, energy is saved, efficiency is high, and the application range is wider. The modified activated carbon prepared by the method can be effectively used for purifying radioactive gas, acid gas, alkaline gas, hydrogen sulfide, mercury steam and other gases.

Description

Technical Field

[0001] The present invention relates to the technical field of activated carbon modification, and particularly relates to an aerosol fluidized activated carbon modification device and method. Background Art

[0002] The existing activated carbon impregnation modification technology mainly includes the following steps: (1) Spraying on the surface of activated carbon for modification, or impregnating activated carbon with alkaline modification solutions such as KOH, NaOH, Ca(OH)2, etc.; (2) Drying the "modified activated carbon precursor" loaded with the modification solution through a conveyor dryer or a forced air drying oven to prepare activated carbon for filtering acidic gases in the air.

[0003] The existing activated carbon impregnation modification technology described above has at least the following problems: (1) The method of spraying modification on the surface of activated carbon cannot achieve uniform loading of the modification reagent, which easily leads to uneven modification effects, unstable quality of the modified products, and difficulty in control. Among them, when overloaded, the pores of the activated carbon will be blocked by the modifier, resulting in poor adsorption effects; when the loading amount is small, the ideal modification effect cannot be achieved. (2) The modification method of impregnating with an excessive amount of modification reagent will generate excessive modified waste liquid containing a large amount of oxygen-containing activated carbon dust / dust. The treatment cost of these modified waste liquids is high, resulting in an increase in the price of the modified activated carbon. (3) Whether it is the activated carbon surface spraying method or the excessive impregnation method, it is impossible to isolate the air during the operation process, which easily causes the activated carbon to be affected by gases such as carbon dioxide, nitrogen dioxide, and oxygen in the air during the modification process, resulting in a deterioration of the modification effect (for example, when impregnating and loading KOH on the surface of activated carbon to remove sulfur dioxide gas in the air, KOH is easily reacted with carbon dioxide in the air to form potassium carbonate, resulting in a deterioration of the modification effect, and the initial sulfur dioxide filtration efficiency of the modified activated carbon becomes poor during use). (4) The conventional modification process cannot reduce the dust on the surface of the activated carbon. When the activated carbon is applied in a clean room area, a large amount of activated carbon dust with a modifier falls off, and these particles are often corrosive due to the modifier, polluting the customer's on-site environment and causing pollution to the downstream gaseous environment. (5) The activated carbon prepared by the traditional method of impregnating with alkaline modifiers such as KOH often has a relatively high initial filtration efficiency, but the filtration life is not long, the saturation capacity is relatively small, the life is short, and it needs to be replaced frequently. (6) In the conventional modification process, due to the simple equipment and low automation level, it is easy to cause harm to the operators by the modifier. (7) During the batch production process, the impregnation modification solvent of conventional activated carbon is mostly tap water. Since the water contains a large amount of elements such as calcium, magnesium, and chlorine, it will cause problems such as poor gas purification effect due to the activated carbon adsorbing excessive impurities in the water.

[0004] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide an aerosol fluidized activated carbon modification device and method, aiming to improve the modification effect of activated carbon, reduce the generation of waste liquid, and lower the production cost.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] In the first aspect of the present invention, there is provided an aerosol fluidized activated carbon modification device, including an aerosol generator, an activated carbon modification tank, a Venturi chamber, and an air inlet pipe, and an induced draft fan is arranged on the air inlet pipe; a gas inlet is arranged at the bottom of the activated carbon modification tank; the Venturi chamber is arranged below the activated carbon modification tank; an air inlet, an aerosol inlet, and a gas outlet located at the top are arranged on the Venturi chamber; the gas outlet of the Venturi chamber is connected to the gas inlet of the activated carbon modification tank; the air inlet is connected to the air inlet pipe; the aerosol inlet is connected to the aerosol generator; a circulation pipe is further included, and both ends of the circulation pipe are respectively connected to the top of the activated carbon modification tank and the intake end of the induced draft fan; a drying device is further included, and the drying device is used to provide hot drying gas for the induced draft fan.

[0008] For the above-mentioned aerosol fluidized activated carbon modification device, further included is a vacuum pumping device, and the vacuum pumping device is connected to the activated carbon modification tank.

[0009] For the above-mentioned aerosol fluidized activated carbon modification device, at the top of the activated carbon modification tank, there is a first exhaust pipe, and the top of the first exhaust pipe is communicated with a second exhaust pipe or the circulation pipe through a first three-way pipe; an exhaust valve is arranged on the second exhaust pipe; a first circulation valve is arranged at the intake end of the circulation pipe; the outlet end of the circulation pipe is communicated with the intake end of the induced draft fan.

[0010] For the above-mentioned aerosol fluidized activated carbon modification device, the air inlet of the induced draft fan is connected to a first air draft pipe, and the first air draft pipe is communicated with a second air draft pipe or the circulation pipe through a second three-way pipe; a second circulation valve is arranged at the outlet end of the circulation pipe; an intake valve is arranged on the second air draft pipe; the drying device is arranged on the second air draft pipe.

[0011] For the above-mentioned aerosol fluidized activated carbon modification device, an upper filter screen is arranged at the bottom of the activated carbon modification tank, and a lower filter screen is arranged in the Venturi chamber. The pore diameter of the upper filter screen is smaller than the diameter of the modified activated carbon and larger than the pore diameter of the lower filter screen.

[0012] For the above-mentioned aerosol fluidized activated carbon modification device, a one-way valve is arranged at the connection between the aerosol generator and the aerosol inlet.

[0013] In the second aspect of the present invention, a method for modifying aerosol fluidized activated carbon is provided. The method uses the aerosol fluidized activated carbon modification equipment as described above and includes the following steps:

[0014] S01. Add activated carbon particles to be modified into the activated carbon modification tank, and add the modification liquid to the aerosol generator.

[0015] S02. Turn on the induced draft fan and the aerosol generator, and convey aerosol gas into the activated carbon modification tank to make the activated carbon boil and fluidize rapidly. Then, make the aerosol gas circulate into the activated carbon modification tank through the circulation pipeline to modify the activated carbon.

[0016] S03. After the modification is completed, stop the gas circulation and the generation of the aerosol, and input hot drying gas to dry the modified activated carbon.

[0017] In the described method for modifying aerosol fluidized activated carbon, the particle size of the activated carbon particles is 1 - 4 mm; when modifying the activated carbon, the wind speed of the air outlet of the induced draft fan is 2.5 - 5 m / s; the particle size of the aerosol particles is ≤ 3 μm.

[0018] In the described method for modifying aerosol fluidized activated carbon, the mass ratio of the activated carbon to the modification liquid is 1:(0.2 - 0.3).

[0019] Beneficial effects: The present invention provides an aerosol fluidized activated carbon modification equipment. The aerosol fluidized activated carbon modification equipment forms aerosol particles from the modification liquid by setting an aerosol generator, and then uses gas (such as air) as a carrier to carry the aerosol gas to fluidize and modify the activated carbon particles, completely and uniformly impregnating the activated carbon particles. During the modification process, the gas carrying the aerosol is continuously circulated, which is energy-efficient and ensures the fluidization effect. The modified activated carbon prepared by the present invention can be effectively used for the purification of radioactive gases, acidic gases, alkaline gases, hydrogen sulfide, mercury vapor and other gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the aerosol fluidized activated carbon modification equipment Figure 1 .

[0021] Figure 2 is a schematic structural diagram of the aerosol fluidized activated carbon modification equipment Figure 2 .

[0022] Figure 3 is a schematic structural diagram of the aerosol fluidized activated carbon modification equipment Figure 3 .

[0023] Description of main component symbols: 1 - aerosol generator, 2 - activated carbon modification tank, 3 - Venturi chamber, 4 - air inlet pipe, 5 - induced draft fan, 6 - vacuum pumping device, 71 - first exhaust pipe, 72 - first three-way pipe, 73 - second exhaust pipe, 731 - exhaust valve, 74 - circulation pipe, 741 - first circulation valve, 75 - first induced draft pipe, 76 - second three-way pipe, 77 - second induced draft pipe, 742 - second circulation valve, 771 - intake valve, 8 - drying device, 21 - upper filter screen, 31 - lower filter screen, 9 - check valve. Detailed implementation manners

[0024] The present invention provides an aerosol fluidized activated carbon modification device and method. To make the objectives, technical solutions and effects of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, specific orientation structure and operation. Therefore, it cannot be understood as a limitation to the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "plurality" is more than two.

[0026] Please refer to Figure 1 , the present invention provides an aerosol fluidized activated carbon modification device, including an aerosol generator 1, an activated carbon modification tank 2, a Venturi chamber 3 and an air inlet pipe 4. An induced draft fan 5 is arranged on the air inlet pipe 4; a gas inlet is arranged at the bottom of the activated carbon modification tank 2; the Venturi chamber 3 is arranged below the activated carbon modification tank 2; an air inlet, an aerosol inlet and a gas outlet at the top are arranged on the Venturi chamber 3; the gas outlet of the Venturi chamber 3 is connected to the gas inlet of the activated carbon modification tank 2; the air inlet is connected to the air inlet pipe 4; the aerosol inlet is connected to the aerosol generator 1; a circulation pipe 74 is further included, and both ends of the circulation pipe 74 are respectively connected to the top of the activated carbon modification tank 2 and the intake end of the induced draft fan 5; a drying device 8 is further included, and the drying device 8 is used to provide hot drying gas for the induced draft fan 5.

[0027] Specifically, the aerosol generator 1 atomizes the modified liquid under ultra-high pressure (20 - 200 MPa) to generate aerosol particles (particle size ≤ 3 μm), and the activated carbon adsorption tank is used to carry the aerosol gas to fluidize the activated carbon particles.

[0028] A Venturi tube is provided in the Venturi chamber 3. Through the Venturi principle, the aerosol can be mixed with the gas. When the high-pressure gas passes through the tiny holes, the gas flow rate will increase sharply, forming a high-speed gas flow. The high-speed gas flow is used to further tear the aerosol into particles of different sizes and mix the aerosol and the gas.

[0029] A door body for taking and placing activated carbon is provided on the activated carbon modification tank 2.

[0030] During modification, the drying device 8 does not operate. After the modification is completed, the drying process is entered and the drying device 8 operates.

[0031] The particle size of the aerosol particles is very small, and some can reach the nanometer level, which can penetrate into the pores of the activated carbon and be more fully modified. Coupled with the fluidized state, the activated carbon particles will continuously tumble, so that all sides of the activated carbon can be evenly contacted with the aerosol, and the modification is uniform. In addition, due to the very small particle size of the aerosol particles, the pore channels will not be blocked, effectively avoiding the problem of large loading in some areas and small loading in some areas, and the modification effect is stable.

[0032] In addition, compared with the traditional modification method, the modified liquid used in the present invention has a smaller volume. On the one hand, it can reduce the generation of waste liquid, and on the other hand, it can reduce the moisture content of the modified activated carbon, thereby reducing the energy consumption required for drying. Further, during modification, the decrease in the moisture content of the activated carbon can also reduce the introduction of impurity elements such as calcium, magnesium, and chlorine in the water.

[0033] Preferably, in one embodiment, a support mesh is provided inside the activated carbon modification tank 2, and the support mesh is used to place the activated carbon. Specifically, the aperture of the support mesh is smaller than the particle size of the activated carbon particles.

[0034] Please refer to Figure 3 , preferably, the aerosol fluidized activated carbon modification equipment further includes a vacuum pumping device 6, and the vacuum pumping device 6 is connected to the activated carbon modification tank 2. The vacuum pumping device 6 is used to perform a vacuum treatment on the activated carbon before modification.

[0035] Preferably, the induced draft fan 5 is a variable frequency fan, and it is connected with a pressure transmitter.

[0036] Please refer to Figure 2, preferably, a first exhaust pipe 71 is provided at the top of the activated carbon modification tank 2, and the top of the first exhaust pipe 71 is communicated with a second exhaust pipe 73 or a circulation pipeline 74 through a first three-way pipe 72; an exhaust valve 731 is provided on the second exhaust pipe 73; a first circulation valve 741 is provided at the air inlet end of the circulation pipeline 74; the air outlet end of the circulation pipeline 74 is communicated with the air inlet end of the induced draft fan 5.

[0037] The exhaust valve 731 is used to connect the first exhaust pipe 71 and the second exhaust pipe 73 during drying and cooling to discharge the gas in the activated carbon modification tank 2. The first circulation valve 741 is used to connect the first exhaust pipe 71 and the circulation pipeline 74 during modification to circulate the aerosol gas.

[0038] Please refer to Figure 2 , preferably, a first induced draft pipe 75 is connected to the air inlet of the induced draft fan 5, and the first induced draft pipe 75 is communicated with a second induced draft pipe 77 or a circulation pipeline 74 through a second three-way pipe 76; a second circulation valve 742 is provided at the air outlet end of the circulation pipeline 74; an air inlet valve 771 is provided on the second induced draft pipe 77; the drying device 8 is provided on the second induced draft pipe 77.

[0039] During modification, the second circulation valve 742 is opened to connect the circulation pipeline 74 with the first induced draft pipe, and at the same time, the opening degree of the air inlet valve 771 is adjusted to supplement a small amount of external gas in the circulation state; when entering the drying process, the second circulation valve 742 is closed and the drying device 8 operates.

[0040] Please refer to Figure 2 , preferably, a one-way valve 9 is provided at the connection between the aerosol generator 1 and the aerosol inlet; the one-way valve 9 can prevent the gas in the pipeline from flowing backward into the aerosol generator 1. Through the one-way valve 9, the connection or closing of the pipeline can be controlled, and the flow rate and pressure can be adjusted.

[0041] Please refer to Figure 2 , preferably, an upper filter screen 21 is provided at the bottom of the activated carbon modification tank 2, and a lower filter screen 31 is provided in the Venturi bin 3. The pore diameter of the upper filter screen 21 is smaller than the diameter of the modified activated carbon and larger than the pore diameter of the lower filter screen 31.

[0042] Please refer to Figure 2 , preferably, the bottom of the activated carbon modification tank 2 is set to be inverted conical, narrow at the bottom and wide at the top, aiming to avoid excessive boiling of the activated carbon, reduce the breakage rate of the activated carbon, ensure the fluidization effect, and at the same time, can better reduce the local overheating of the activated carbon during the drying process.

[0043] Preferably, the aerosol fluidized activated carbon modification equipment of the present invention further includes a control device. The aerosol generator 1, the induced draft fan 5, the drying device 8, the exhaust valve 731, the first circulation valve 741, the second circulation valve 742, the intake valve 771, and the one-way valve 9 are respectively electrically connected to the control device, and each electrical equipment can be intelligently regulated through the control device.

[0044] The second aspect of the present invention provides an aerosol fluidized activated carbon modification method, which includes the following steps:

[0045] S01. Add the activated carbon particles to be modified into the activated carbon modification tank 2, and add the modification liquid to the aerosol generator 1.

[0046] S02. Turn on the induced draft fan 5 and the aerosol generator 1, and convey the aerosol gas into the activated carbon modification tank 2 to make the activated carbon quickly boil and fluidize. The aerosol gas is circulated into the activated carbon modification tank 2 through the circulation pipeline 74 to modify the activated carbon.

[0047] S03. After the modification is completed, stop the gas circulation and the generation of the aerosol, and input the hot drying gas to dry the modified activated carbon.

[0048] The modification method of the present invention realizes a complete set of activated carbon impregnation processes including gas distribution, aerosol preparation, activated carbon impregnation, and activated carbon drying. It has a simple structure and is easy to operate. The influence law of aerosol particle size and activated carbon impregnation can be analyzed by changing the components of the modification liquid, gas wind speed, etc., generating aerosols with different components, and preparing different types of modified activated carbon, with a wider scope of application.

[0049] Preferably, the particle size of the activated carbon particles is 1 - 4 mm; during the activation carbon modification, the wind speed of the air outlet of the induced draft fan 5 is 2.5 - 5 m / s; the particle size of the aerosol particles ≤ 3 μm. The wind speed of the air outlet of the induced draft fan 5 needs to be adapted to the particle size of the activated carbon particles, otherwise the activated carbon particles cannot be formed into a fluidized state by the air flow. The wind speed of the air outlet of the induced draft fan 5 cannot be too large, otherwise it will cause a large number of collisions of the activated carbon particles and result in a large amount of fragmentation.

[0050] The activated carbon particles can be one or more of coal-based activated carbon, coconut shell activated carbon, and wood-based activated carbon.

[0051] Preferably, the mass ratio of the activated carbon to the modification liquid is 1:(0.2 - 0.3).

[0052] Preferably, in S03, the temperature of the hot drying gas is 80 - 120 °C, and the drying time is 20 - 30 minutes.

[0053] Specifically, during the modification, the induced draft fan 5 can directly use air, with lower cost.

[0054] In a preferred embodiment, in S02, before starting the induced draft fan 5 and the aerosol generator 1, the activated carbon modification tank 2 can also be evacuated. Evacuating can create a negative pressure inside the pores of the activated carbon, promoting the entry of aerosol particles into the interior of the pores. At the same time, evacuating can remove some of the impurities adsorbed by the activated carbon, allowing the activated carbon to load more modifiers.

[0055] Specifically, after the drying process in S03 is completed, a cooling process is also included. After closing the drying device 8, low-temperature air is introduced to rapidly cool the activated carbon adsorption tank to prevent the risk brought by the adsorption heat.

[0056] The aerosol fluidized activated carbon modification method of the present invention can be applicable to different types of modification liquids, has a wide application range, and remarkable effects.

[0057] The following specific examples are given to further illustrate the present invention.

[0058] Example 1

[0059] An aerosol fluidized activated carbon modification method, which uses the aerosol fluidized activated carbon modification equipment as shown in Figure 2 and includes the following steps:

[0060] A01. Add coconut shell activated carbon particles to be modified into the activated carbon modification tank, and add a modification liquid to the aerosol generator 1. The modification liquid is a potassium hydroxide solution with a concentration of 1 mol / L;

[0061] The particle size of the activated carbon particles is 2 - 4 mm; the mass ratio of the activated carbon particles to the modification liquid is 1:0.3; inside the activated carbon modification tank 2;

[0062] A02. Close the exhaust valve 731, open the first circulation valve 741, the second circulation valve 742, and the intake valve 771, start the induced draft fan 5 and the aerosol generator 1, and convey aerosol gas into the activated carbon modification tank 2 to make the activated carbon quickly boil and fluidize, and make the aerosol gas circulate into the activated carbon modification tank 2 through the circulation pipeline 74 to modify the activated carbon; during modification, control the wind speed of the air outlet of the induced draft fan 5 to be 3 m / s, and the blowing time to be 60 min;

[0063] A03. After the modification is completed, open the exhaust valve 731, close the first circulation valve 741, the second circulation valve 742, and the aerosol generator 1, stop the gas circulation and the generation of aerosol, open the drying device 8, input hot drying air at 80 °C, and dry for 30 minutes to dry the modified activated carbon;

[0064] A04. Close the drying device 8, cool down, and obtain modified activated carbon particles.

[0065] Comparative Example 1

[0066] A method for modifying aerosol fluidized activated carbon, which is different from Example 1 in that the air velocity of the air outlet of the induced draft fan is 1 m / s, and the activated carbon particles cannot be fluidized at this air velocity.

[0067] Comparative Example 2

[0068] A method for modifying activated carbon by impregnation, comprising the following steps:

[0069] Immerse 20 g of activated carbon in a potassium hydroxide solution for 10 min, turn it over and immerse it again for 10 min and then take it out, blow it with compressed air to remove the excess potassium hydroxide solution, and dry it in a blast drying oven at 50 °C to obtain trace potassium hydroxide-modified activated carbon. The concentration of the potassium hydroxide solution is 100 mmol / L, and the mass ratio of the potassium hydroxide solution to the activated carbon is 1.5:1.

[0070] Purification rate of gaseous pollutants: The modified activated carbons prepared in Example 1, Comparative Example 1 and Comparative Example 2 were tested according to the standard "GB / T 34012-2017", and the test results are as follows:

[0071]

[0072]

[0073] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. An aerosol fluidized activated carbon modification device, characterized in that: The invention comprises an aerosol generator, an activated carbon modification tank, a venturi chamber and an air inlet duct, wherein the air inlet duct is provided with an induced draft fan; a gas inlet is provided at the bottom of the activated carbon modification tank; the venturi chamber is provided below the activated carbon modification tank; an air inlet, an aerosol inlet and a gas outlet at the top are provided on the venturi chamber; the gas outlet of the venturi chamber is connected to the gas inlet of the activated carbon modification tank; the air inlet is connected to the air inlet duct; the aerosol inlet is connected to the aerosol generator; It also includes a circulation pipeline, the two ends of which are respectively connected to the top of the activated carbon modification tank and the air inlet end of the induced draft fan; Also included is a drying device, which is used to provide hot drying gas to the induced draft fan.

2. The aerosol fluidized activated carbon modification equipment according to claim 1, characterized in that: It also includes a vacuum pumping device, which is connected to the activated carbon modification tank.

3. The aerosol fluidized activated carbon modification equipment according to claim 1, characterized in that: A first exhaust pipe is arranged on the top of the activated carbon modification tank, and the top of the first exhaust pipe is connected with the second exhaust pipe or the circulation pipe through a first three-way pipe; an exhaust valve is arranged on the second exhaust pipe; a first circulation valve is arranged at the air inlet end of the circulation pipe; the air outlet end of the circulation pipe is connected with the air inlet end of the induced draft fan.

4. The aerosol fluidized activated carbon modification equipment according to claim 3, characterized in that: The air inlet of the induced draft fan is connected to a first induced draft duct, and the first induced draft duct is connected to a second induced draft duct or a circulation duct through a second three-way pipe; a second circulation valve is provided at the air outlet end of the circulation duct; an air intake valve is provided on the second induced draft duct; and the drying device is provided on the second induced draft duct.

5. The aerosol fluidized activated carbon modification equipment according to any one of claims 1 to 4, characterized in that: An upper filter screen is arranged at the bottom of the activated carbon modification tank, and a lower filter screen is arranged in the venturi chamber.

6. The aerosol fluidized activated carbon modification equipment according to claim 5, characterized in that: The mesh size of the upper filter is smaller than the diameter of the modified activated carbon and larger than the mesh size of the lower filter.

7. The aerosol fluidized activated carbon modification equipment according to any one of claims 1 to 4, characterized in that: A one-way valve is provided at the connection between the aerosol generator and the aerosol inlet.

8. An aerosol fluidized activated carbon modification method, which uses the aerosol fluidized activated carbon modification equipment according to any one of claims 1 to 7, characterized in that: The steps include: S01. Adding activated carbon particles to be modified into the activated carbon modification tank and adding the modified liquid to the aerosol generator; S02. Turn on the induced draft fan and the aerosol generator to deliver aerosol gas to the activated carbon modification tank, so that the activated carbon is rapidly boiled and fluidized, and the aerosol gas is circulated into the activated carbon modification tank through the circulation pipeline to modify the activated carbon; S03. After the modification is completed, the gas circulation and the generation of aerosol are stopped, and hot drying gas is input to dry the modified activated carbon.

9. The aerosol fluidized activated carbon modification method according to claim 8, characterized in that: The particle size of the activated carbon particles is 1 to 4 mm; when the activated carbon is modified, the wind speed of the induced draft fan is 2.5 to 5 m / s; and the particle size of the aerosol particles is ≤3 μm.

10. The aerosol fluidized activated carbon modification method according to claim 8, characterized in that: The mass ratio of the activated carbon to the modified liquid is 1:(0.2-0.3).

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