Carbon-based material post-modification reactor, post-modification reaction device, post-modification treatment system and method thereof

Abstract

The provided carbon-based material post-modification reactor includes: a feed port, which is arranged at the upstream of the carbon-based material post-modification reactor, for feeding carbon-based material raw materials; a discharge port, which is arranged at the downstream of the carbon-based material post-modification reactor, for outputting modified carbon-based materials; a screw device, which is located inside the reactor to simultaneously push and flip the carbon-based material raw materials fed from the feed port between the feed port and the discharge port; and an air intake device, through which ozone gas is input into the interior of the carbon-based material post-modification reactor. The screw device includes a straight rod portion, a reverse inner spiral blade group, and a forward outer spiral blade group. Through the function and design of the screw device, the carbon-based material post-modification reactor of the present invention can simultaneously push, return and flip the carbon-based material raw materials inside the reactor to improve the efficiency of the post-modification reaction.

Description

Technical Field

[0001] The present invention relates to a modification technology of carbon-based materials; in particular, the present invention relates to a post-modification technology of carbon-based materials such as carbon black, activated carbon, nano-carbon tubes, graphene and carbon fibers. Background Art

[0002] Carbon black is lipophilic in nature and has very low dispersibility in polar solvents (such as water), which limits its application. In order to further apply carbon black to inks, paints, or electronic packaging and improve its application value, the carbon black can be subjected to surface oxidation modification during the preparation process to improve the dispersion performance of the carbon black, so that the modified carbon black can be stably and well dispersed in polar solvents, thereby expanding the application of carbon black.

[0003] In the prior art, the modification process of carbon black is mostly carried out during the preparation of carbon black. Hydrogen peroxide is introduced during the preparation process to react in order to increase the oxygen-containing polar groups of the prepared carbon black; or after the preparation of carbon black, the carbon black is further subjected to post-modification treatments such as surface acidification or surface oxidation using a strong acid solution (such as hydrochloric acid, nitric acid, etc.) or ozone plasma. However, the use of a strong acid solution for post-modification of carbon black will inevitably lead to the problem of highly polluting waste liquid treatment and discharge, while the use of ozone plasma for post-modification of carbon black will result in poor efficiency due to the low concentration of ozone plasma. In addition, in the existing post-modification technology of carbon black, a stirrer is used in the reaction tank to stir and the surface modification of carbon black is carried out in batches. Not only is the treatment efficiency poor, the yield and economic value are difficult to improve, but also the quality of the prepared modified carbon black is easily different due to differences in various conditions of the batch treatment; even if a fluidized bed is developed for continuous treatment, there is still a serious problem of generating highly polluting waste liquid. In addition, for carbon-based materials such as activated carbon, carbon nanotubes, graphene and carbon fibers, there is also an urgent need for post-modification technology that can improve processing efficiency and prepare modified carbon-based materials of good quality. Summary of the invention

[0004] In view of the above problems, the present invention proposes a carbon-based material post-modification reactor, a system including the post-modification reactor for post-modification of carbon-based materials, and a corresponding method. The present invention performs post-modification treatment on carbon-based material raw materials such as native carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber that have been prepared in a continuous process, which can effectively improve the quality of modified carbon-based material products and their preparation efficiency.

[0005] According to the first conception of the present invention, a carbon-based material post-modification reactor is provided, comprising: a feed port, arranged at the upstream of the carbon-based material post-modification reactor, for feeding carbon-based material raw materials; a discharge port, arranged at the downstream of the carbon-based material post-modification reactor, for outputting modified carbon-based materials; a screw device, located inside the carbon-based material post-modification reactor to simultaneously push and flip the carbon-based material raw materials fed from the feed port between the feed port and the discharge port; and an air intake device, through which ozone gas is input into the interior of the carbon-based material post-modification reactor. The screw device comprises: a straight rod portion, which is coupled to a motor and driven by the motor; an inner spiral blade group, which comprises a plurality of inner spiral blades evenly spaced and arranged on a first portion of the straight rod portion close to the feed port and radially extending from the straight rod portion; and an outer spiral blade group, which comprises a plurality of short rods and a plurality of outer spiral blades. The plurality of short rods are evenly spaced apart and arranged on the straight rod portion and radially extend from the straight rod portion, the plurality of outer spiral blades are spirally wrapped around the outside of the straight rod portion and are evenly spaced apart and arranged on the straight rod portion, wherein one end of each of the plurality of short rods is connected to each of the plurality of outer spiral blades.

[0006] Based on the above concept, the outer spiral blade set further includes a plurality of connecting blades, each of which is connected between at least two outer spiral blades of a portion of the outer spiral blade set.

[0007] Based on the above concept, the inner spiral blade group is a right-handed spiral blade group, and the outer spiral blade group is a left-handed spiral blade group.

[0008] Based on the above concept, the outer spiral blade set has a first blade spacing, and the inner spiral blade set has a second blade spacing, wherein the first blade spacing is smaller than the second blade spacing. Preferably, the first blade spacing is between 80 mm and 120 mm, and the second blade spacing is between 100 mm and 150 mm.

[0009] Based on the above concept, the length of the straight rod portion is between 1500 mm and 15000 mm. Preferably, the length of the first part of the straight rod portion is between 1000 mm and 10000 mm.

[0010] Based on the above concept, the length-to-width ratio of the carbon-based material post-modification reactor is between 3 and 8.

[0011] Based on the above concept, in the carbon-based material post-modification reactor, the blade diameter of each of the plurality of inner spiral blades of the inner spiral blade group is between 90 mm and 170 mm.

[0012] Based on the above concept, in the carbon-based material post-modification reactor, the first inner spiral blade among the plurality of inner spiral blades is at a first distance from the front end of the straight rod portion, and the first distance is between 0 and two-thirds of the length of the straight rod portion.

[0013] Based on the above concept, the air intake device includes a plurality of injection ports, and the ozone gas input from the air intake device enters the interior of the carbon-based material modification reactor through the plurality of injection ports.

[0014] Based on the above concept, the air intake device is arranged at one end of the carbon-based material post-modification reactor, below the feeding port inside the carbon-based material post-modification reactor, below the carbon-based material post-modification reactor, or directly formed by the straight rod portion.

[0015] Based on the aforementioned concept, the carbon-based material post-modification reactor of the present invention further comprises a temperature control device, which is coupled to the carbon-based material post-modification reactor to adjust the temperature inside the carbon-based material post-modification reactor.

[0016] Based on the above concept, the carbon-based material raw material is selected from one of carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

[0017] According to the second concept of the present invention, a carbon-based material post-modification reaction device is provided, comprising: a total feed port, arranged at the upstream of the carbon-based material post-modification reaction device, for feeding carbon-based material raw materials; a total discharge port, arranged at the downstream of the carbon-based material post-modification reaction device, for outputting modified carbon-based materials; and a plurality of carbon-based material post-modification reactors as described above, wherein the discharge port of the upstream reactor in the plurality of carbon-based material post-modification reactors is connected to the feed port of the downstream reactor, and the plurality of carbon-based material post-modification reactors are connected in series and fluidically connected to each other between the total feed port and the total discharge port, and each is coupled to a corresponding motor, and is driven by the corresponding motor to simultaneously push and flip the carbon-based material raw materials inside each of the carbon-based material post-modification reactors.

[0018] Based on the above concept, the respective gas inlet devices of the plurality of carbon-based material post-modification reactors are fluidically coupled to a common ozone generating unit.

[0019] Based on the above concept, the carbon-based material raw material is selected from one of carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

[0020] According to the third concept of the present invention, a carbon-based material post-modification treatment system is provided, comprising: an air compression unit, which receives and compresses air to produce compressed air; an oxygen generating unit, which receives the compressed air and produces concentrated oxygen from the compressed air; an ozone generating unit, which receives the concentrated oxygen and produces ozone gas from the concentrated oxygen; and a modification unit, which receives the ozone gas produced by the ozone generating unit, and mixes and reacts the ozone gas with a carbon-based material raw material to produce a modified carbon-based material.

[0021] Based on the aforementioned conception, the modification unit includes a carbon-based material post-modification reactor as in any of the aforementioned conceptions, or includes a carbon-based material post-modification reaction device as in any of the aforementioned conceptions.

[0022] Based on the aforementioned concept, the carbon-based material post-modification treatment system of the present invention further includes a drying unit, which is disposed between the air compression unit and the oxygen generation unit to dry the compressed air.

[0023] Based on the aforementioned concept, the carbon-based material post-modification treatment system of the present invention further includes an air storage tank, which is disposed between the drying unit and the oxygen generation unit to store dried compressed air.

[0024] Based on the above concept, the oxygen generation unit is a molecular sieve device, which separates oxygen and nitrogen in the compressed air to produce the concentrated oxygen.

[0025] Based on the above concept, the carbon-based material post-modification treatment system of the present invention further includes an oxygen storage tank, which is disposed between the oxygen generation unit and the ozone generation unit to store the concentrated oxygen.

[0026] Based on the above concept, the ozone generating unit is a high voltage discharge device.

[0027] Based on the above concept, the carbon-based material post-modification treatment system of the present invention further includes a feeding device, which feeds the carbon-based material raw material into the modification unit.

[0028] Based on the above concept, the carbon-based material post-modification processing system of the present invention further includes a grinding device, which grinds the modified carbon-based material output from the modification unit.

[0029] Based on the above concept, the carbon-based material raw material is selected from one of carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

[0030] According to the fourth concept of the present invention, a method for post-modification of carbon-based materials is provided, comprising the following steps: (a) providing compressed air; (b) separating concentrated oxygen from the compressed air; (c) generating ozone gas from the concentrated oxygen using high-voltage discharge; and (d) passing the ozone gas through a carbon-based material raw material and mixing and reacting with the carbon-based material raw material for a predetermined time to generate a modified carbon-based material.

[0031] Based on the above concept, after step (a), the method of the present invention further comprises step (a1) of drying and / or storing the compressed air.

[0032] Based on the above concept, after step (b), the method of the present invention further comprises step (b1) of storing the concentrated oxygen.

[0033] Based on the aforementioned concept, after step (c), the method of the present invention further comprises a step (c1) of controlling the flow rate and / or concentration of the ozone gas passing through the carbon-based material raw material.

[0034] Based on the above concept, the carbon-based material raw material is selected from one of carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the embodiments of the present invention. However, the disclosed detailed description and drawings are only provided for reference and explanation, and are not intended to limit the present invention; among them:

[0036] Figure 1 A cross-sectional schematic diagram illustrating a carbon-based material post-modification reactor according to an embodiment of the present invention;

[0037] Figure 2A and Figure 2B The schematic structures of the first section and the second section of the screw device of the carbon-based material post-modification reactor according to an embodiment of the present invention are respectively described;

[0038] Figure 3 A schematic diagram illustrating the configuration of an air inlet device of a carbon-based material post-modification reactor according to an embodiment of the present invention;

[0039] FIG. 4A to FIG. 4D Schematic diagram of various configuration positions and air intake modes of an air intake device in a carbon-based material post-modification reactor according to an embodiment of the present invention;

[0040] FIG. 5A to FIG. 5C A schematic diagram illustrating the configuration of a carbon-based material post-modification reactor and an air inlet device thereof according to another embodiment of the present invention;

[0041] Fig. 6A and Figure 6BA schematic diagram illustrating the configuration of a carbon-based material post-modification reaction device according to an embodiment of the present invention;

[0042] Figure 7 A schematic diagram illustrating the configuration of a carbon-based material post-modification processing system according to an embodiment of the present invention; and

[0043] Figure 8 A flow chart illustrating a method for post-modification of carbon-based materials according to an embodiment of the present invention. DETAILED DESCRIPTION

[0044] The following text refers to the accompanying drawings and illustrates the concept of the present invention by way of example embodiments. In the drawings or descriptions, similar or identical parts are represented by the same component symbols. In addition, the drawings are drawn to facilitate understanding, and the sizes and shapes of the units or devices in the drawings are not the actual sizes of the devices, nor do they present a specific proportional relationship.

[0045] See also Figure 1 , which is a cross-sectional schematic diagram illustrating the configuration of the carbon-based material post-modification reactor 10 of the present invention according to an embodiment of the present invention. The carbon-based material post-modification reactor 10 of the present invention includes a feed port 12, which is arranged at the upstream of the carbon-based material post-modification reactor 10, and the carbon-based material raw material to be modified (not shown in the figure) is injected into the interior of the carbon-based material post-modification reactor 10 from the feed port 12. The carbon-based material post-modification reactor 10 of the present invention also includes a discharge port 14, which is arranged at the downstream of the carbon-based material post-modification reactor 10, and the modified carbon-based material (not shown in the figure) that has completed the reaction is output from the discharge port 14, so as to further perform subsequent grinding and / or packaging processing according to actual application needs. In the present invention, the carbon-based material raw material can be any one of carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

[0046] The carbon-based material post-modification reactor 10 of the present invention is provided with a screw device 16 inside, and the screw device 16 is used to simultaneously push and flip the carbon-based material raw material fed from the feeding port 12 between the feeding port 12 and the discharging port 14. As shown in the figure, the screw device 16 includes a first section 16A upstream of the reactor and a second section 16B downstream of the reactor; in other words, the first section 16A of the screw device 16 is closer to the feeding port 12 of the carbon-based material post-modification reactor 10 than the second section 16B.

[0047] like Figure 1 As shown, the screw device 16 in the carbon-based material post-modification reactor 10 of the present invention includes a straight rod portion 162 , an inner spiral blade group 164 and an outer spiral blade group 166 .

[0048] The straight rod portion 162 is coupled to the motor 15 and driven by the motor 15, so that the screw device 16 simultaneously pushes and flips the carbon-based material raw material fed from the feed port 12 inside the carbon-based material post-modification reactor 10. The straight rod portion 162 can be divided into a first portion 162A and a second portion 162B, which correspond to the first section 16A and the second section 16B of the screw device 16, respectively. In other words, the first portion 162A of the straight rod portion 162 refers to the portion of the straight rod portion 162 located at the upstream of the carbon-based material post-modification reactor 10, which is closer to the feed port 12 than the second portion 162B; the second portion 162B of the straight rod portion 162 refers to the portion of the straight rod portion 162 located at the downstream of the carbon-based material post-modification reactor 10, which is closer to the discharge port than the first portion 162A.

[0049] Also see Figure 2A , which is a schematic diagram of the structure of the first section 16A of the screw device 16 of the carbon-based material post-modification reactor 10 of the present invention. As shown in the figure, the inner spiral blade group 164 is a continuous spiral blade structure, which is composed of a plurality of inner spiral blades 164a1~164a4, and the inner spiral blades 164a1~164a4 are arranged on the first part 162A of the straight rod portion 162, and the blades are evenly spaced and extend radially from the straight rod portion 162. In this embodiment, the inner spiral blade group 164 is composed of four (i.e., forming four turns) inner spiral blades 164a1~164a4; however, in other embodiments, the number (number of turns) of the inner spiral blades can be adjusted according to actual application conditions and preparation requirements. In an embodiment of the present invention, the inner spiral blade group 164 is a right-handed spiral blade group (i.e., it presents a reverse spiral), and is only arranged in the first part 162A of the straight rod portion 162; in other words, the reverse inner spiral blade group 164 is only arranged in the first section 16A in the screw device 16, and when driven by the straight rod portion 162, it pushes (returns) the carbon-based material raw material back to the upstream in the first section 16A, thereby increasing the residence time of the carbon-based material raw material in the carbon-based material post-processing reactor 10 of the present invention.

[0050] In this embodiment, the inner helical blade group 164 is disposed at the first portion 162A of the straight rod portion 162, and the first inner helical blade 164a1 is disposed at the front end E of the straight rod portion 162 of the screw device 16 in the carbon-based material post-modification reactor 10, as shown in FIG. Figure 1 As shown; however, in other embodiments, the inner spiral blade group may also be arranged at different positions on the straight rod portion, such as at any position between the front end of the straight rod portion and a position that is two-thirds of the total length of the straight rod portion from the front end of the straight rod portion, depending on actual application requirements.

[0051] In this embodiment, the blade size (i.e., blade diameter c, such as Figure 2AHowever, in other embodiments, depending on the actual design of the reactor, the blade diameter of the inner spiral blade may also be adjusted, for example, between 90 mm and 170 mm.

[0052] Also see Figure 1 , Figure 2A and Figure 2B ,in Figure 2B It is a schematic diagram of the structure of the second section 16B of the screw device 16 of the carbon-based material post-modification reactor 10 of the present invention. As shown in the figure, the outer spiral blade group 166 of the screw device 16 includes a plurality of short rods 168 and a plurality of outer spiral blades 166a, 166b. The plurality of short rods 168 are evenly spaced and arranged on the entire straight rod portion 162 (including the first part 162A and the second part 162B), and extend radially from the straight rod portion 162; the plurality of outer spiral blades 166a, 166b are in a continuous spiral blade structure and surround the straight rod portion 162, and are evenly spaced and arranged on the first part 162A and the second part 162B of the straight rod portion 162. In an embodiment of the present invention, the outer spiral blade group 166 is a left-handed spiral blade group, and each outer spiral blade 166a, 166b is connected to one end 168A of each corresponding short rod 168 (for example, by welding), thereby forming a spiral blade structure that surrounds the outside and is in a positive spiral on the straight rod portion 162, so as to push the carbon-based material raw material toward the downstream in the carbon-based material post-modification reactor 10.

[0053] like Figure 1 As shown, the carbon-based material post-modification reactor 10 of the embodiment of the present invention is in a horizontal configuration; in this embodiment, the feed port 12 located at the upstream of the carbon-based material post-modification reactor 10 is located on the left side of the drawing as shown in the figure, and the discharge port 14 at the downstream is located on the right side of the drawing as shown in the figure. As described above, in this embodiment, the outer spiral blade group 166 includes outer spiral blades 166a and outer spiral blades 166b respectively arranged in the first section 16A and the second section 16B of the screw device 16 and are positive spiral blades, for example, a left-handed spiral blade group, which is driven by the motor 15 to drive the straight rod part 162 to rotate axially and move the carbon-based material raw material in the carbon-based material post-modification reactor 10 toward the discharge port 14 (i.e., downstream) (in the direction of the discharge port 14). Figure 1 In this embodiment, the first section 16A of the screw device 16 is further provided with an inner spiral blade group 164 including a plurality of inner spiral blades 164a, which are reverse spiral blades, and for example, are right-hand spiral blade groups, which are driven by the motor 15 to drive the straight rod portion 162 to rotate axially and push the carbon-based material raw material toward the feeding port 12 (i.e., upstream) (in the direction of Figure 1The carbon-based material raw material is pushed to the left (i.e., "returned") in order to control the residence time (reaction time) of the carbon-based material post-modification reactor 10 of the present invention.

[0054] In this embodiment, the outer spiral blade set 166 of the screw device 16 further includes a plurality of connecting blades 167, each of which is connected between at least two blades of a portion of the outer spiral blades 166a, 166b. Figure 1 and Figure 2A , Figure 2B As shown, a connecting blade 167a1 is connected between blades 166a1-166a4 of the outer spiral blade group 166 of the first section 16A of the screw device 16; in the second section 16B of the screw device 16, connecting blades 167b1-167b3 are respectively connected between two adjacent blades (such as blade 166b1 and blade 166b2, blade 166b3 and blade 166b4, and blade 166b5 and blade 166b6) in the outer spiral blade group 166. According to the present invention, the connecting blade 167 of the screw device 16 is driven to flip the carbon-based material after the carbon-based material is modified in the reactor 10 when the straight rod portion 162 is axially rotated by the motor 15, so that the carbon-based material raw material and ozone are evenly mixed inside the reactor, thereby improving the reaction efficiency between the two.

[0055] In this embodiment, the outer spiral blade set 166 of the screw device 16 has a first blade spacing D1, and the inner spiral blade set 164 has a second blade spacing D2, wherein the first blade spacing D1 is smaller than the second blade spacing D2. In other words, according to an embodiment of the present invention, in the screw device 16 of the carbon-based material post-modification reactor 10, the first blade spacing D1 of the outer spiral blade set 166 for forwardly pushing the carbon-based material raw material is smaller than the second blade spacing D2 of the inner spiral blade set 164 for returning the carbon-based material raw material.

[0056] According to the present invention, the individual first blade spacing D1 and second blade spacing D2 of the outer spiral blade set 166 and the inner spiral blade set 164 of the screw device 16 of the carbon-based material post-modification reactor 10, the individual configuration lengths of the first section 16A and the second section 16B, and the length of each connecting blade 167 can be designed and adjusted according to the actual needs of the process. For example, according to an embodiment of the present invention, the first blade spacing D1 in the carbon-based material post-modification reactor 10 is between 80 mm and 120 mm, and the second blade spacing is between 100 mm and 150 mm. According to an embodiment of the present invention, the length of the first section is between 1000 mm and 10000 mm, and the sum of the length of the first section and the length of the second section (that is, the length of the entire screw device) is between 1500 mm and 15000 mm. For example, in this embodiment, the first blade spacing D1 of the outer spiral blade set 166 can be, for example, 100 mm, and the second blade spacing D2 of the inner spiral blade set 164 can be, for example, 125 mm. Furthermore, the total length of the first section 16A of the screw device 16 may be, for example, 1000 mm, and the length of the connecting blade 167a1 may be, for example, 605 mm.

[0057] According to the present invention, the aspect ratio of the carbon-based material post-modification reactor 10 is between 3 and 8. For example, in this embodiment, the total length L of the carbon-based material post-modification reactor 10 is 1500 mm, the width W (reactor inner diameter) is 212.3 mm, and the aspect ratio (L / D) is about 7.06.

[0058] According to the present invention, the carbon-based material post-modification reactor further comprises an air inlet device, through which ozone gas is introduced into the interior of the carbon-based material post-modification reactor to mix and react with the carbon-based material raw material. Figure 3 , which illustrates a schematic diagram of the configuration of the air inlet device of the carbon-based material post-modification reactor according to an embodiment of the present invention. According to an embodiment of the present invention, the air inlet device 18 of the carbon-based material post-modification reactor 10 is arranged inside the carbon-based material post-modification reactor 10, below the feed port 12, and further includes a plurality of (for example, five in this embodiment) injection ports 182A, such as Figure 3 As shown; the ozone gas input from the air intake device 18 enters the interior of the carbon-based material post-modification reactor 10 through each injection port 182A. Through this design, the uniformity of the dispersion of the ozone gas inside the carbon-based material post-modification reactor 10 can be improved, thereby improving the mixing and reaction efficiency of the ozone gas and the carbon-based material raw material. In addition, the carbon-based material post-modification reactor 10 of the present invention further includes a temperature control device 19, which is coupled to the carbon-based material post-modification reactor 10 to adjust (e.g., heat) the temperature inside the carbon-based material post-modification reactor 10, thereby improving the reaction efficiency of the ozone gas and the carbon-based material raw material.

[0059] In addition to being located inside the carbon-based material post-modification reactor 10, the inlet device can also be located and arranged in a different position and manner according to actual process requirements. FIG. 4A to FIG. 4D , which schematically illustrates various configuration positions and air intake methods of the air intake device in the carbon-based material post-modification reactor according to an embodiment of the present invention. In one embodiment, the air intake device can be arranged at one end 10a of the carbon-based material post-modification reactor 10, so that ozone enters the interior of the carbon-based material post-modification reactor 10 from the end 10a, such as Figure 4A As shown by the arrow 18a in the middle, the carbon-based material raw material (as shown by the arrow 12a) is mixed and reacted inside the reactor. Alternatively, the air inlet device can be arranged at one end 10b ( Figure 4B ), or arranged along the lower portion 10c of the carbon-based material post-modification reactor 10 ( Figure 4C ), so that ozone enters the interior of the carbon-based material post-modification reactor 10 from one end 10b of the lower part of the carbon-based material post-modification reactor, or from the lower part 10c, respectively, as Figure 4B The middle arrow 18b and Figure 4C As shown by the arrow 18c, the ozone is mixed and reacted with the carbon-based material raw material (as shown by the arrows 12b and 12c) injected from the feeding port 12 in the reactor. In another alternative embodiment, the air inlet device can be directly formed by forming a plurality of injection holes on the straight rod portion 162, so that the ozone injected axially from the straight rod portion 162 can evenly enter the interior of the carbon-based material post-modification reactor 10 through the injection holes on the straight rod portion 162, as shown in FIG. Figure 4D As shown by the arrows 18d, 18d1 to 18dn, the carbon-based material raw material (as shown by the arrow 12d) injected from the feeding port 12 is mixed and reacted inside the reactor.

[0060] As explained above, Figure 1 The carbon-based material post-modification reactor 10 is shown as being horizontally configured, but the configuration of the carbon-based material post-modification reactor of the present invention is not limited thereto. FIG. 5A to FIG. 5C As shown, the carbon-based material post-modification reactors 50A, 50B, and 50C of the present invention can also be designed to be in a vertical configuration, depending on the spatial conditions of the carbon-based material preparation plant. FIG. 5A to FIG. 5C In the vertical carbon-based material post-modification reactors 50A, 50B, and 50C shown in FIG. 1 , the feed port 52 and the discharge port 54 are located above (upstream) and below (downstream) the carbon-based material post-modification reactors, respectively (i.e., FIG. 5A to FIG. 5CThe air inlet device can be set according to actual needs, so that ozone can be injected from the top (upstream) of the vertical carbon-based material post-modification reactor 50A, the bottom (downstream) of the vertical carbon-based material post-modification reactor 50B, or the side of the vertical carbon-based material post-modification reactor 50C, respectively. Figure 5A Middle arrow 58a, Figure 5B Middle arrow 58b and Figure 5C As shown by the arrow 58c, the carbon-based material raw material (as shown by the arrows 52a, 52b, 52c) injected from the feeding port 52 is mixed and reacted inside the reactor. It should be understood by those skilled in the art that the carbon-based material post-modification reactor can be adjusted according to the configuration direction of the carbon-based material post-modification reactor and the driving direction of the motor. FIG. 5A to FIG. 5C The screw device, blade rotation direction, blade spacing and other designs of the carbon-based material post-modification reactor shown in FIG.

[0061] See also Fig. 6A and Figure 6B , which schematically illustrates the configuration of a carbon-based material post-modification reaction device according to an embodiment of the present invention.

[0062] like Fig. 6A As shown, the carbon-based material post-modification reaction device 60 of this embodiment includes a total feed port 62 and a total discharge port 64. The total feed port 62 is arranged at the upstream of the carbon-based material post-modification reaction device 60 (for example, Fig. 6A As shown in the upper left, the carbon-based material raw material is injected into the interior of the carbon-based material post-modification reaction device 60 through the main feeding port 62; the main discharge port 64 is set at the downstream of the carbon-based material post-modification reaction device 60 (for example, Fig. 6A As shown in the lower left corner), the modified carbon-based material prepared after the reaction is completed is output through the main discharge port 64 for subsequent grinding and / or packaging processing as needed.

[0063] The carbon-based material post-modification reaction device 60 of the present invention is composed of a plurality of (for example, six in this embodiment) carbon-based material post-modification reactors 10A to 10F as described above connected in series. In detail, the upstream reactor (for example Fig. 6A The outlet of the carbon-based material post-modification reactor 10A) shown in FIG. 1 is connected to a downstream reactor (eg Fig. 6AThe feed port of the carbon-based material post-modification reactor 10B shown in the figure is configured so that a plurality of carbon-based material post-modification reactors 10A to 10F are connected in series and fluidically connected between the total feed port 62 and the total discharge port 64, so that the carbon-based material raw material injected from the total feed port 62 (as shown by arrow 62a) is uniformly mixed and reacted with the ozone injected into the reaction device through the air intake device (in this embodiment, injected through the straight rod part of each reactor, as shown by arrows 68a to 68f) as the screw device of each reactor pushes, returns and turns inside the carbon-based material post-modification reaction device 60. The straight rod parts of the screw devices of the carbon-based material post-modification reactors 10A to 10F are each coupled to a corresponding motor (not shown in the figure), and the straight rod parts are driven by the corresponding motor to drive the outer spiral blade group and the inner spiral blade group of the screw device to simultaneously push, return and turn over the carbon-based material raw material inside each of the carbon-based material post-modification reactors. In this embodiment, the number of carbon-based material post-modification reactors included in the carbon-based material post-modification reaction device 60 can be adjusted according to the area and height of the actual plant area, and the internal structure and operation mode of each carbon-based material post-modification reactor 10A to 10F are the same as the aforementioned carbon-based material post-modification reactor 10, which will not be repeated here. The design of connecting multiple carbon-based material post-modification reactors in series can effectively increase the reaction time of the carbon-based material raw material and ozone, and further improve the modification effect.

[0064] Alternatively, the air inlet device may also be disposed at one end of the lower portion of each carbon-based material post-modification reactor 10A to 10F for injecting ozone, and the injected ozone is mixed and reacted with the carbon-based material raw material inside each carbon-based material post-modification reactor 10A to 10F, such as Figure 6B shown.

[0065] It should be understood that the number of reactors contained in the carbon-based material post-modification reaction device of the present invention, the configuration direction of the reactors, the design of the air intake device and the air intake direction, etc. can all be combined and changed according to the above description and actual needs.

[0066] See also Figure 7 , which is a schematic diagram of the configuration of a carbon-based material post-modification treatment system according to an embodiment of the present invention. Figure 7As shown, the carbon-based material post-modification treatment system 70 of the present invention includes: an air compression unit 72, which receives and compresses air to produce compressed air; an oxygen generation unit 74, which receives the compressed air and produces concentrated oxygen from the compressed air; an ozone generation unit 76, which receives the concentrated oxygen and produces ozone gas from the concentrated oxygen; and a modification unit 78, which receives the ozone gas produced by the ozone generation unit, and mixes and reacts the ozone gas with the carbon-based material raw material to produce modified carbon-based material and output it. In detail, the air compression unit 72 may include, but is not limited to: an air compression device 722, a control unit 724, a drying unit 726 (for example, a freeze drying device) and an air storage tank 728. After the input air is compressed by the air compression device 722 and dried by the drying unit 726, it can be injected into the air storage tank 728 for storage for subsequent processes. The control unit 724 controls the flow rate and flow rate of the compressed air in real time, and can perform air conditioning (i.e., filtering, pressure regulation, and oil lubrication) to prevent the generation of impurities due to pipe wear, so that the quality of the supplied compressed air meets the actual process requirements. The compressed air compressed and dried by the air compression unit 72 is input to the oxygen generation unit 74. The oxygen generation unit 74 can be, but is not limited to, a molecular sieve device 742, which separates oxygen and nitrogen in the compressed air to produce concentrated oxygen with a concentration of up to 90%. The oxygen generation unit 74 may also include an oxygen storage tank 744, which can store concentrated oxygen for subsequent process use. The concentrated oxygen generated by the oxygen generation unit 74 is further input to the ozone generation unit 76, which includes a high-voltage discharge device 762, which releases energy to break the bonds of the concentrated oxygen molecules to produce ozone (O3) gas. By adjusting the gas flow rate and processing efficiency of the ozone generation unit 76, the flow rate and concentration of the generated ozone gas can be changed to meet the requirements of the subsequent reaction. The generated ozone gas can be injected into the carbon-based material post-modification reactor (device) 782 of the modification unit 78 to be evenly mixed and reacted with the carbon-based material raw material 782A.

[0067] According to an embodiment of the present invention, the modification unit 78 includes: Figure 1 The horizontal carbon-based material post-modification reactor 10 shown in FIG. In another embodiment, the modification unit 78 may also include FIG. 5A to FIG. 5C The vertical carbon-based material post-modification reactor 50A-50C shown in FIG. In another embodiment, the modification unit 78 may include a Fig. 6A or Figure 6B The carbon-based material post-modification reaction device 60 is shown; as described above, the carbon-based material post-modification reaction device 60 is composed of a plurality of carbon-based material post-modification reactors connected in series.

[0068] According to an embodiment of the present invention, the carbon-based material post-modification treatment system 70 further includes a feeding device 784, which is in fluid communication with a feeding port 7822 of a carbon-based material post-modification reactor (device) 782 of a modification unit 78, so as to inject carbon-based material raw materials into the carbon-based material post-modification reactor (device) 782 of the modification unit 78. In addition, the carbon-based material post-modification treatment system 70 of the present invention may further include a grinding unit 80, and the modified carbon-based material output from the discharge port 7824 of the carbon-based material post-modification reactor (device) 782 of the modification unit 78 is input to the grinding unit 80 for grinding, and is further packaged and output after meeting the specifications required for the application of the carbon-based material product.

[0069] See also Figure 8 , which illustrates a flow chart of a method for post-modification of carbon-based materials according to an embodiment of the present invention. The method of the present invention comprises the following steps: compressing input air to provide compressed air (step 810); drying and storing the compressed air as appropriate (step 815), for example, but not limited to, using a freeze drying device to dry the compressed air and storing it in an air storage tank. Then, nitrogen and oxygen in the compressed air are separated by, for example, a molecular sieve device to produce concentrated oxygen (step 820); as appropriate, the concentrated oxygen produced is stored (step 825). Then, ozone gas is produced from the concentrated oxygen by high-voltage discharge (step 830). The produced ozone gas is passed through a carbon-based material raw material (for example, injected into the interior of the aforementioned carbon-based material post-modification reactor via an air inlet device) and mixed and reacted with the carbon-based material raw material for a predetermined time to produce a modified carbon-based material (step 840); as appropriate, in step 840, the flow rate and / or concentration of the ozone gas that will pass through the carbon-based material raw material can be further controlled to obtain a modified carbon-based material product with desired properties. The modified carbon-based material produced is ground as appropriate (step 850 ), and is further packaged and output (step 860 ).

[0070] The present invention provides a novel carbon-based material post-modification reactor (device), a system comprising such a post-modification reactor (device) for carrying out post-modification treatment of carbon-based materials, and a corresponding method, which is a continuous process and is easy to control the process to produce a modified carbon-based material product with desired properties.

[0071] According to the present invention, the number of carbon-based material post-modification reactors in series can be increased according to actual processing requirements to increase the reaction time of the carbon-based material raw materials in the reactor; by adjusting the feeding frequency of the carbon-based material raw materials (e.g., native carbon black) at the feeding port, the unit time output of the modified carbon-based material (e.g., modified carbon black) can be adjusted accordingly. In addition, in the carbon-based material post-modification reactor of the present invention, the position and form of the air inlet device for providing ozone gas inside the reactor (e.g., the number and position of the injection holes) can also be adjusted according to the actual application requirements, so that the injected ozone gas can be evenly distributed inside the reactor to mix and react with the carbon-based material raw materials. By adjusting the gas flow rate and processing efficiency of the ozone generation unit in the carbon-based material post-modification reaction system of the present invention, the flow rate and concentration of the ozone gas injected into the reactor can be adjusted. By adjusting the actuation frequency of the motor coupled to the screw device, the stirring efficiency of the carbon-based material inside the reactor can be adjusted to improve the quality of the modified carbon-based material products. Since the present invention performs post-modification treatment on the prepared carbon-based material raw materials (for example, native carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber, etc.) in a continuous process, various condition parameters of the post-modification reaction can be adjusted in real time, which can effectively improve the quality of the modified carbon-based material products and their preparation efficiency.

[0072] It should be noted that the aforementioned embodiments provided by the present invention are only used to illustrate the present invention, and are not used to limit the scope of the present invention. Various modifications and changes made to the present invention by those skilled in the art of the present invention do not deviate from the spirit and scope of the present invention. The same or similar components in different embodiments, or components represented by the same component symbols in different embodiments have the same physical or chemical properties. In addition, where appropriate, the above embodiments of the present invention may be combined or replaced with each other, and are not limited to the specific embodiments described above. The connection relationship between the specific components described in the embodiments and other components may also be applied to other embodiments, which all fall within the scope of the claims of the present invention.

[0073] Explanation of symbols

[0074] 10 Carbon-based material post-modification reactor

[0075] 10a One end of the carbon-based material post-modification reactor

[0076] 10b One end of the lower part of the carbon-based material post-modification reactor

[0077] 10c The lower part of the reactor for post-modification of carbon-based materials

[0078] 10A~10F Carbon-based material post-modification reactor

[0079] 12 Feeding port

[0080] 14 Discharge port

[0081] 15 Motor

[0082] 16 Screw device

[0083] 16A Section 1

[0084] 16B Second segment

[0085] 162 Straight Rod

[0086] 162A The first part of the straight shaft

[0087] 162B Second part of the straight shaft

[0088] 164 Inner spiral blade set

[0089] 164a Inner spiral blade

[0090] 166 External spiral blade set

[0091] 166a, 166a1~166a4 External spiral blade

[0092] 166b, 166b1~166b7 External spiral blade

[0093] 167 Connecting blades

[0094] 167a1, 167b1~167b3 connecting blades

[0095] 168 Short Game

[0096] 168A One end of the short rod

[0097] 18 Air intake

[0098] 182A Inlet

[0099] 19 Temperature control device

[0100] 50A, 50B, 50C Carbon-based material post-modification reactor

[0101] 60 Carbon-based material post-modification reaction device

[0102] 62 Total feeding port

[0103] 64 Total outlet

[0104] 70 Carbon-based material post-modification treatment system

[0105] 72 Air compression unit

[0106] 722 Air compression device

[0107] 724 Control Unit

[0108] 726 Drying Unit

[0109] 728 Air Tank

[0110] 74 Oxygen Generation Unit

[0111] 742 Molecular Sieve Device

[0112] 744 Oxygen Tank

[0113] 76 Ozone generating unit

[0114] 762 High voltage discharge device

[0115] 78 Modification Unit

[0116] 782 Carbon-based material post-modifier (device)

[0117] 782A Carbon-based material raw materials

[0118] 7822 Feeding port

[0119] 7824 Discharge port

[0120] 784 Feeding device

[0121] 80 Grinding unit

[0122] Steps 810-860

[0123] D1 First blade spacing

[0124] D2 Second blade spacing

[0125] L Length

[0126] W Width

Claims

1. A carbon-based material post-modification reactor, comprising: A feeding port is provided at the upstream of the carbon-based material post-modification reactor for feeding carbon-based material raw materials; A discharge port is provided at the downstream of the carbon-based material post-modification reactor for discharging the modified carbon-based material; A screw device is located inside the carbon-based material post-modification reactor to simultaneously push and flip the carbon-based material raw material fed from the feeding port between the feeding port and the discharging port, characterized in that the screw device only includes: a straight rod portion coupled to and driven by the motor; An inner spiral blade assembly, comprising a plurality of inner spiral blades evenly spaced apart and extending radially from the straight rod portion, wherein the inner spiral blade assembly is only disposed on a first portion of the straight rod portion close to the feeding port; and External spiral blade set, including: A plurality of short rods are evenly spaced and disposed on the straight rod portion and radially extend from the straight rod portion; and a plurality of outer spiral blades, the plurality of outer spiral blades spirally surround the outside of the straight rod portion and are evenly spaced apart on the straight rod portion, wherein one end of each of the plurality of short rods is connected to each of the plurality of outer spiral blades; and An air inlet device, through which ozone gas is introduced into the interior of the carbon-based material post-modification reactor; The outer spiral blade set has a first blade spacing, and the inner spiral blade set has a second blade spacing, wherein the first blade spacing is smaller than the second blade spacing.

2. A carbon-based material post-modification reactor as described in claim 1, wherein the outer spiral blade group further includes a plurality of connecting blades, each of the plurality of connecting blades is connected between at least two outer spiral blades of a portion of the outer spiral blade group.

3. The carbon-based material post-modification reactor as described in claim 1, wherein the inner spiral blade group is a right-handed spiral blade group, and wherein the outer spiral blade group is a left-handed spiral blade group.

4. The carbon-based material post-modification reactor as described in claim 1, wherein the first blade spacing is between 80 mm and 120 mm, and the second blade spacing is between 100 mm and 150 mm.

5. The carbon-based material post-modification reactor as claimed in claim 1, wherein the length of the straight rod portion is between 1500 mm and 15000 mm. 6 . The carbon-based material post-modification reactor as claimed in claim 5 , wherein the length of the first portion of the straight rod portion is between 1000 mm and 10000 mm. 7 . The carbon-based material post-modification reactor as claimed in claim 1 , wherein the aspect ratio of the carbon-based material post-modification reactor is between 3 and 8.

8. The carbon-based material post-modification reactor as claimed in claim 1, wherein the blade diameter of each of the plurality of inner spiral blades of the inner spiral blade set is between 90 mm and 170 mm.

9. A carbon-based material post-modification reactor as described in claim 1, wherein a first inner spiral blade among the plurality of inner spiral blades is at a first distance from the front end of the straight rod portion, and the first distance is between 0 and two-thirds of the length of the straight rod portion.

10. The carbon-based material post-modification reactor as described in claim 1, wherein the air intake device comprises a plurality of injection ports, and the ozone gas input from the air intake device enters into the interior of the carbon-based material post-modification reactor through the plurality of injection ports.

11. The carbon-based material post-modification reactor as described in claim 1, wherein the air inlet device is arranged at one end of the carbon-based material post-modification reactor, below the feeding port inside the carbon-based material post-modification reactor, below the carbon-based material post-modification reactor, or directly formed by the straight rod portion. 12 . The carbon-based material post-modification reactor as claimed in claim 1 , further comprising a temperature control device coupled to the carbon-based material post-modification reactor to adjust the temperature inside the carbon-based material post-modification reactor.

13. The carbon-based material post-modification reactor as claimed in claim 1, wherein the carbon-based material raw material is selected from one of the following: carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

14. A carbon-based material post-modification reaction device, comprising: A main feed port is provided at the upstream of the carbon-based material post-modification reaction device for feeding carbon-based material raw materials; A main discharge port is provided at the downstream of the carbon-based material post-modification reaction device for discharging the modified carbon-based material; and A plurality of carbon-based material post-modification reactors as described in any one of claims 1 to 12, wherein the discharge port of the upstream reactor in the plurality of carbon-based material post-modification reactors is connected to the feed port of the downstream reactor, the plurality of carbon-based material post-modification reactors are connected in series and fluidically connected to each other between the total feed port and the total discharge port, and each is coupled to a respective motor and driven by the respective motor to simultaneously push and flip the carbon-based material raw materials inside each of the carbon-based material post-modification reactors. 15 . The carbon-based material post-modification reaction device according to claim 14 , wherein the respective gas inlet devices of the plurality of carbon-based material post-modification reactors are fluidly coupled to a common ozone generating unit. 16 . The carbon-based material post-modification reaction device as claimed in claim 14 , wherein the carbon-based material raw material is selected from one of the following: carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

17. A carbon-based material post-modification treatment system, comprising: an air compression unit that receives and compresses air to produce compressed air; an oxygen generation unit that receives the compressed air and generates concentrated oxygen from the compressed air; an ozone generating unit that receives the concentrated oxygen and generates ozone gas from the concentrated oxygen; and A modification unit, which receives the ozone gas generated by the ozone generating unit, and mixes and reacts the ozone gas with a carbon-based material raw material to produce a modified carbon-based material, wherein the modification unit comprises a carbon-based material post-modification reactor as described in any one of claims 1 to 12, or comprises a carbon-based material post-modification reaction device as described in any one of claims 14 to 15. 18 . The carbon-based material post-modification treatment system as claimed in claim 17 , further comprising a drying unit disposed between the air compression unit and the oxygen generation unit to dry the compressed air. 19 . The carbon-based material post-modification treatment system as claimed in claim 18 , further comprising an air storage tank disposed between the drying unit and the oxygen generation unit to store dried compressed air. 20 . The carbon-based material post-modification treatment system of claim 17 , wherein the oxygen generation unit is a molecular sieve device that separates oxygen and nitrogen in the compressed air to generate the concentrated oxygen. 21 . The carbon-based material post-modification treatment system as claimed in claim 17 , further comprising an oxygen storage tank disposed between the oxygen generation unit and the ozone generation unit to store the concentrated oxygen.

22. The carbon-based material post-modification treatment system of claim 17, wherein the ozone generating unit is a high voltage discharge device.

23. The carbon-based material post-modification treatment system as claimed in claim 17, further comprising a feeding device, which feeds the carbon-based material raw material into the modification unit. 24 . The carbon-based material post-modification treatment system as claimed in claim 17 , further comprising a grinding device for grinding the modified carbon-based material output from the modification unit.

25. The carbon-based material post-modification treatment system as claimed in claim 17, wherein the carbon-based material raw material is selected from one of the following: carbon black, activated carbon, carbon nanotubes, graphene and carbon fiber.

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