Graphitization production system

Abstract

The utility model provides a graphitization production system. The graphitization production system comprises a base, a first graphitization furnace, a second graphitization furnace, a first copper-aluminum bar, a second copper-aluminum bar and a third copper-aluminum bar, the plurality of first graphitization furnaces and the plurality of second graphitization furnaces are respectively arranged on the two sides of the X direction of the foundation; the first copper-aluminum bar, the second copper-aluminum bar and the third copper-aluminum bar are arranged on the two sides of the foundation in the Y direction respectively, and the multiple first graphitization furnaces and the multiple second graphitization furnaces are connected to the first copper-aluminum bar in parallel; the plurality of first graphitization furnaces are respectively connected in parallel to the second copper-aluminum bar through a first switch; the plurality of second graphitization furnaces are respectively connected in parallel to the third copper-aluminum bar through a second switch; the second copper-aluminum bar and the third copper-aluminum bar are connected through a third switch; the second copper aluminum bar is connected with a first transformer, and the third copper aluminum bar is connected with a second transformer. The capacity of the transformer can be fully utilized, and the equipment investment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of graphitization production technology in the carbon industry, and in particular to a graphitization production system. Background Technology

[0002] Electric vehicle batteries, serving as the core of electric vehicles and battery energy storage systems, primarily consist of positive electrode materials, negative electrode materials (separators), and electrolytes. With the rapid development of electric vehicles and battery energy storage, the current annual demand for negative electrode materials is approximately 1.5 million tons, and the market size is expanding rapidly.

[0003] The negative electrode material is mostly produced through graphitization. This production system uses a single transformer to power multiple graphitization furnaces. The power supply in the early stages of graphitization is relatively low, while the power supply in the later stages is twice that of the early stages. If the transformer is selected based on the power supply parameters for the later stages, it will result in a large equipment surplus in the early stages, low utilization rate, and high equipment investment costs. However, if the transformer is selected based on the power supply parameters for the early stages, the power supply will be insufficient to meet the usage requirements in the later stages of graphitization, reducing the efficiency of graphitization production. Utility Model Content

[0004] The purpose of this invention is to provide a graphitization production system that can meet the power supply requirements in the early and later stages of graphitization power transmission, thereby improving production efficiency.

[0005] The technical solution of this utility model is: a graphitization production system, including a foundation, a first graphitization furnace and a second graphitization furnace disposed on the foundation, and a first copper-aluminum busbar, a second copper-aluminum busbar, and a third copper-aluminum busbar extending along the X direction of the foundation; multiple first graphitization furnaces are arranged on one side of the foundation in the X direction, and multiple second graphitization furnaces are arranged on the other side of the foundation in the X direction; the first copper-aluminum busbar is disposed on one side of the foundation in the Y direction, and multiple first graphitization furnaces and multiple second graphitization furnaces are connected in parallel on the first copper-aluminum busbar; the second copper-aluminum busbar and the third copper-aluminum busbar are disposed on the other side of the foundation in the Y direction; multiple first graphitization furnaces are connected in parallel on the second copper-aluminum busbar, and a first switch is provided on the circuit connecting each first graphitization furnace and the second copper-aluminum busbar; multiple second graphitization furnaces are connected in parallel on the third copper-aluminum busbar, and a second switch is provided on the circuit connecting each second graphitization furnace and the third copper-aluminum busbar; the second copper-aluminum busbar and the third copper-aluminum busbar are connected through a third switch; a first transformer is connected to the second copper-aluminum busbar, and a second transformer is connected to the third copper-aluminum busbar.

[0006] Preferably, the graphitization production system further includes a track supported on the foundation and extending in the X direction, at least one first cooling heat exchanger slidably disposed on the track and reciprocating between multiple first graphitization furnaces, and at least one second cooling heat exchanger slidably disposed on the track and reciprocating between multiple second graphitization furnaces.

[0007] Preferably, both the first and second cooling heat exchangers include a first movable frame, an outer frame, and an inner frame. The first movable frame is slidably connected to the track. Multiple outer frames are arranged in the Y direction of the first movable frame. Each outer frame is provided with an inner frame that moves up and down in the Z direction. Multiple heat exchange tubes are provided on the lower surface of the inner frame.

[0008] Preferably, the multiple heat-collecting tubes are arranged in a rectangular array on the inner frame; each heat-collecting tube has a pointed tip at its bottom.

[0009] Preferably, the support frame is n-shaped, with its open end connected to the foundation. The support frame has horizontal ribs inside, which form an installation cavity at the upper end of the support frame for installing the first copper-aluminum busbar, the second copper-aluminum busbar, and the third copper-aluminum busbar. The track is disposed on the upper surface of the support frame.

[0010] Preferably, the graphitization production system further includes a ceiling track erected on the foundation via columns and extending along the X direction, a first car slidably mounted on the ceiling track and traveling back and forth between multiple first graphitization furnaces, and a second car slidably mounted on the ceiling track and traveling back and forth between multiple second graphitization furnaces.

[0011] Preferably, both the first and second overhead cranes include a second movable frame and a suction device. The second movable frame is slidably connected to the overhead rail, and the suction device is slidably connected to the second movable frame along the Y direction. The bottom of the suction device is provided with a suction port.

[0012] Preferably, the suction port has a degree of freedom to move up and down in the Z direction.

[0013] Compared with related technologies, the beneficial effects of this utility model are as follows:

[0014] I. This utility model adopts multiple first graphitization furnaces connected in parallel with a first transformer, and multiple second graphitization furnaces connected in parallel with a second transformer. During use, each switch can be turned on or off according to the actual situation to connect the corresponding graphitization furnace, so as to meet the power supply needs of different stages of graphitization, so that the capacity utilization rate of the graphitization transformer reaches more than 90%, and the power supply speed is greatly accelerated.

[0015] Second, this utility model is equipped with a cooling heat exchanger, which greatly improves the cooling efficiency of the graphitization furnace, reducing the graphitization cooling cycle from the original 35 days to about 10 days, thereby improving the graphitization production efficiency.

[0016] Third, this utility model is designed with multiple first graphitization furnaces and multiple second graphitization furnaces, as well as the first first car, the second second car, the first cooling heat exchanger and the second cooling heat exchanger, which operate independently on both sides without interfering with each other, reducing the risk of cross-operation. Attached Figure Description

[0017] Figure 1 A three-dimensional structural schematic diagram of the graphitization production system provided by this utility model;

[0018] Figure 2 A plan view of the graphitization production system provided by this utility model;

[0019] Figure 3 A side view of the graphitization production system provided by this utility model;

[0020] Figure 4 For along Figure 3 A schematic diagram of the AA section view and rotation;

[0021] Figure 5 Power supply logic diagram of the graphitization production system provided by this utility model;

[0022] Figure 6 Power supply curve diagram of the graphitization production system provided by this utility model.

[0023] In the attached diagram: 1. Foundation; 2. Column; 3. Cable track; 4. First cooling heat exchanger; 5. First jack; 6. First graphitization furnace; 7. Third jack; 8. Second graphitization furnace; 9. Second cooling heat exchanger; 10. Second jack; 11. First copper-aluminum busbar; 12. Second transformer; 13. Third copper-aluminum busbar; 14. Third switch; 15. Second copper-aluminum busbar; 16. Track; 17. Support frame; 18. First transformer; 19. Feeder device; 20. Second moving frame; 21. Outer frame; 22. Inner frame; 23. First moving frame; 24. First switch; 25. Second switch; 26. Heat exchange pipe; 27. Horizontal rib. Detailed Implementation

[0024] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0025] like Figure 1 , Figure 2 As shown, the graphitization production system provided in this embodiment includes a foundation 1, a column 2, a ceiling rail 3, a first cooling heat exchanger 4, a first trolley 5, a first graphitization furnace 6, a third trolley 7, a second graphitization furnace 8, a second cooling heat exchanger 9, a second trolley 10, a first copper-aluminum busbar 11, a second transformer 12, a third copper-aluminum busbar 13, a third switch 14, a second copper-aluminum busbar 15, a track 16, a support frame 17, a first transformer 18, a feeder device 19, a first switch 24, and a second switch 25.

[0026] The foundation 1 serves as the foundation of the factory building, and it has dimensions in the length direction X, width direction Y, and height direction Z. Two sets of columns 2 are arranged on the foundation 1 along the Y direction, with multiple columns in each set arranged along the X direction. The multiple columns 2 in each set are connected by overhead rails 3. A first overhead crane 5, a second overhead crane 10, and a third overhead crane 7 are slidably installed between the two overhead rails 3 in the Y direction.

[0027] Multiple first graphitization furnaces 6 and multiple second graphitization furnaces 8 are arranged in the X direction of the foundation 1. Multiple first graphitization furnaces 6 are arranged on one side of the foundation 1 in the X direction, and multiple second graphitization furnaces 8 are arranged on the other side of the foundation 1 in the X direction.

[0028] The first copper-aluminum busbar 11, the second copper-aluminum busbar 15, and the third copper-aluminum busbar 13 extend along the X direction of the foundation 1. The first copper-aluminum busbar 11 is located on one side of the foundation 1 in the Y direction, and multiple first graphitization furnaces 6 and multiple second graphitization furnaces 8 are connected in parallel on the first copper-aluminum busbar 11. The second copper-aluminum busbar 15 and the third copper-aluminum busbar 13 are located on the other side of the foundation 1 in the Y direction. Figure 1 , Figure 5 As shown, multiple first graphitization furnaces 6 are connected in parallel to the second copper-aluminum busbar 15, and a first switch 24 is provided on the circuit connecting each first graphitization furnace 6 and the second copper-aluminum busbar 15. Multiple second graphitization furnaces 8 are connected in parallel to the third copper-aluminum busbar 13, and a second switch 25 is provided on the circuit connecting each second graphitization furnace 8 and the third copper-aluminum busbar 13. The second copper-aluminum busbar 15 and the third copper-aluminum busbar 13 are connected through a third switch 14. A first transformer 18 is connected to the second copper-aluminum busbar 15, and a second transformer 12 is connected to the third copper-aluminum busbar 13.

[0029] like Figure 1 , Figure 3 As shown, the track 16 is mounted on the base 1 via a support frame 17 and extends along the X direction. Two first cooling heat collectors 4 are provided, slidably mounted on the track 16 and moving back and forth between multiple first graphitization furnaces 6. Two second cooling heat collectors 9 are provided, slidably mounted on the track 16 and moving back and forth between multiple second graphitization furnaces 8.

[0030] The support frame 17 is n-shaped, providing stable support for both the track 16 and the copper-aluminum busbars. The open end of the n-shaped support frame 17 connects to the foundation 1. The support frame 17 contains transverse ribs 27, which create mounting cavities at its upper end for installing the first copper-aluminum busbar 11, the second copper-aluminum busbar 15, and the third copper-aluminum busbar 13. The track 16 is disposed on the upper surface of the support frame 17.

[0031] like Figure 4 As shown, both the first cooling heat exchanger 4 and the second cooling heat exchanger 9 include a first movable frame 23, an outer frame 21, and an inner frame 22. The first movable frame 23 is slidably connected to the track 16. Multiple outer frames 21 are arranged in the Y direction of the first movable frame 23, and each outer frame 21 is provided with an inner frame 22 that moves up and down in the Z direction. Multiple heat exchange tubes 26 are provided on the lower surface of the inner frame 22. The multiple heat exchange tubes 26 are arranged in a rectangular array on the inner frame 22; each heat exchange tube 26 has a pointed tip at its bottom, which can be quickly inserted into the material in the graphitization furnace for heat exchange, thereby accelerating the heat dissipation of the graphitization furnace and improving the cooling efficiency.

[0032] like Figure 1 As shown, the first trolley 5 slides on the overhead rail 3 and travels back and forth between multiple first graphitization furnaces 6. The second trolley 10 slides on the overhead rail 3 and travels back and forth between multiple second graphitization furnaces 8. The third trolley 7 is used to unload the product material from the graphitization furnace.

[0033] like Figure 3 As shown, the first overhead crane 5, the third overhead crane 7, and the second overhead crane 10 each include a second moving frame 20 and a suction device 19. The second moving frame 20 is slidably connected to the overhead rail 3, and the suction device 19 is slidably connected to the second moving frame 20 along the Y direction. The bottom of the suction device 19 is provided with a suction port. The suction port has a degree of freedom to move up and down in the Z direction.

[0034] like Figure 5 , Figure 6 As shown, this utility model provides a power supply method for a graphitization production system, comprising:

[0035] In the early stages of graphitization-based power transmission:

[0036] Disconnect the third switch 14; turn off the first switch 24 corresponding to one of the first graphitization furnaces 6 and the second switch 25 corresponding to one of the second graphitization furnaces 8 respectively; start the first transformer 18 to supply power to the connected first graphitization furnace 6 with a power supply of P / 2; start the second transformer 12 to supply power to the connected second graphitization furnace 8 with a power supply of P / 2.

[0037] In the later stages of graphitization power transmission:

[0038] Close the third switch 14; close the first switch 24 corresponding to one of the first graphitization furnaces 6 or the second switch 25 corresponding to one of the second graphitization furnaces 8 respectively; start the first transformer 18 and the second transformer 12, and simultaneously supply power to the closed first graphitization furnace 6 or the second graphitization furnace 8, with a power supply of P / 2 + P / 2 = P.

[0039] This invention can make full use of the transformer's capacity, reduce equipment investment costs, shorten the graphitization cooling cycle, and increase graphitization output.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A graphitization production system, comprising a foundation (1) and a first graphitization furnace (6) and a second graphitization furnace (8) disposed on the foundation (1), characterized in that, It also includes a first copper-aluminum busbar (11), a second copper-aluminum busbar (15), and a third copper-aluminum busbar (13) extending along the X direction of the foundation (1); multiple first graphitization furnaces (6) are arranged on one side of the foundation (1) in the X direction, and multiple second graphitization furnaces (8) are arranged on the other side of the foundation (1) in the X direction; the first copper-aluminum busbar (11) is located on one side of the foundation (1) in the Y direction, and multiple first graphitization furnaces (6) and multiple second graphitization furnaces (8) are connected in parallel on the first copper-aluminum busbar (11); the second copper-aluminum busbar (15) and the third copper-aluminum busbar (13) are located on the other side of the foundation (1) in the Y direction; multiple first... A graphitization furnace (6) is connected in parallel to the second copper-aluminum busbar (15), and a first switch (24) is provided on the circuit connecting each first graphitization furnace (6) and the second copper-aluminum busbar (15); multiple second graphitization furnaces (8) are connected in parallel to the third copper-aluminum busbar (13), and a second switch (25) is provided on the circuit connecting each second graphitization furnace (8) and the third copper-aluminum busbar (13); the second copper-aluminum busbar (15) and the third copper-aluminum busbar (13) are connected through a third switch (14); a first transformer (18) is connected to the second copper-aluminum busbar (15), and a second transformer (12) is connected to the third copper-aluminum busbar (13).

2. The graphitization production system according to claim 1, characterized in that, It also includes a track (16) that is mounted on the foundation (1) via a support frame (17) and extends in the X direction, at least one first cooling heat exchanger (4) that is slidably mounted on the track (16) and travels back and forth between a plurality of first graphitization furnaces (6), and at least one second cooling heat exchanger (9) that is slidably mounted on the track (16) and travels back and forth between a plurality of second graphitization furnaces (8).

3. The graphitization production system according to claim 2, characterized in that, The first cooling heat exchanger (4) and the second cooling heat exchanger (9) both include a first moving frame (23), an outer frame (21) and an inner frame (22). The first moving frame (23) is slidably connected to the track (16). Multiple outer frames (21) are arranged in the Y direction of the first moving frame (23). Each outer frame (21) is provided with an inner frame (22) that moves up and down in the Z direction. Multiple heat exchange tubes (26) are provided on the lower surface of the inner frame (22).

4. The graphitization production system according to claim 3, characterized in that, Multiple heat-collecting tubes (26) are arranged in a rectangular array on the inner frame (22); each heat-collecting tube (26) has a pointed tip at its bottom.

5. The graphitization production system according to claim 2, characterized in that, The support frame (17) is n-shaped, with its open end connected to the foundation (1). The support frame (17) has a horizontal rib (27) inside, which makes the upper end of the support frame (17) form an installation cavity for installing the first copper-aluminum busbar (11), the second copper-aluminum busbar (15) and the third copper-aluminum busbar (13). The track (16) is set on the upper surface of the support frame (17).

6. The graphitization production system according to claim 1, characterized in that, It also includes a ceiling track (3) that is erected on the foundation (1) by a column (2) and extends along the X direction, a first car (5) that is slidably mounted on the ceiling track (3) and travels back and forth between multiple first graphitization furnaces (6), and a second car (10) that is slidably mounted on the ceiling track (3) and travels back and forth between multiple second graphitization furnaces (8).

7. The graphitization production system according to claim 6, characterized in that, Both the first crane (5) and the second crane (10) include a second moving frame (20) and a suction device (19). The second moving frame (20) is slidably connected to the overhead rail (3). The suction device (19) is slidably connected to the second moving frame (20) along the Y direction. The bottom of the suction device (19) is provided with a suction port.

8. The graphitization production system according to claim 7, characterized in that, The suction port has a degree of freedom to move up and down in the Z direction.

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