Graphitization furnace for internal series graphitization of graphite negative electrode material

Abstract

The application belongs to the technical field of graphitization, and particularly relates to a graphite negative material internal series graphitization furnace, which comprises a furnace body, two first working plates arranged above the furnace body, a second working plate rotatably connected to one side of each first working plate, an adjusting mechanism and a moving mechanism arranged above the furnace body, a U-shaped plate arranged above the furnace body, a bearing plate fixedly connected to each end of the U-shaped plate, two symmetrically-distributed arc-shaped grooves and a straight groove in communication with the arc-shaped grooves formed in the surface of each bearing plate, and the like. In the application, when the rotatably-connected first working plates and second working plates are in a planar state, the corresponding first working plates and second working plates are in an inclined state, and then the two first working plates and the two second working plates form an eight-shaped state. When the two second working plates in the eight-shaped state are driven to move downward by the moving mechanism, the two second working plates can provide a downward pressure to the electrode column located in the furnace body.

Description

Technical Field

[0001] This invention relates to the field of graphitization technology, and more particularly to a graphitization furnace for graphite anode materials. Background Technology

[0002] An internal series graphitization furnace is an industrial furnace that uses the principle of self-heating by electric current, mainly used for high-temperature heat treatment processes of carbon-based materials such as graphite electrodes. This equipment achieves heating of the product body by arranging electrodes in series, allowing current to flow through the product.

[0003] Before being heated by electricity, a string of electrode columns inside an internal graphitization furnace often needs to be clamped by pressure devices at both ends of the furnace to ensure that the electrode columns fit tightly together and that the current can pass through smoothly.

[0004] However, when the total length of a string of electrode posts is long, the two ends of the entire string of electrode posts may arch up when subjected to pressure, causing the contact surfaces between the electrode posts to not be completely attached, which will affect the current flow. Summary of the Invention

[0005] To address the aforementioned problems, this invention proposes an internal graphitization furnace for graphite anode materials, which more precisely solves the problems mentioned in the background art.

[0006] This invention is achieved through the following technical solution: This invention proposes an internal graphitization furnace for graphite anode materials, comprising a furnace body, two first working plates disposed above the furnace body, and a second working plate rotatably connected to one side of each first working plate. An adjustment mechanism and a movable mechanism are disposed above the furnace body. The adjustment mechanism includes a U-shaped plate located above the furnace body, with a bearing plate fixedly connected to both ends of the U-shaped plate. Each bearing plate has two symmetrically distributed arc-shaped grooves on its surface, and a straight groove communicating with the arc-shaped grooves.

[0007] Preferably, a support rod is fixedly connected to the support plate, a first worm gear driven by an external motor is rotatably connected to the support rod, and a first worm wheel that meshes with the first worm gear is rotatably connected to the support plate.

[0008] Preferably, each of the arc-shaped grooves corresponds to a positioning seat rotatably connected to the support plate, the positioning seat being at the same position as the center of the arc-shaped groove, and the first working plate being slidably connected to two positioning seats distributed in front and behind.

[0009] Preferably, each of the first worm gears is provided with a rectangular frame fixed coaxially to it, and sliding rods that are slidably adapted to the arc groove and the straight groove are fixedly connected to the two side walls opposite to the first working plate. The sliding rods are slidably adapted to the grooves on the surface of the rectangular frame.

[0010] Preferably, two vertical plates are fixedly connected to the two opposite side walls of the first working plate, and a second worm gear is rotatably connected between the two vertical plates. A bevel gear is provided on the outer side of one of the vertical plates and is fixed coaxially with the second worm gear. A second worm wheel is provided on the side wall of the first working plate and is fixed coaxially with the second working plate and meshes with the second worm gear.

[0011] Preferably, a long rod is fixedly connected to the surface of the bearing plate, and an arc-shaped rack is fixedly connected to the free end of the long rod, the arc-shaped rack being meshed with a bevel gear.

[0012] Preferably, the movable mechanism includes two floor plates located symmetrically distributed on the outside of the furnace body, a first threaded rod rotatably connected between the two floor plates, and a splined shaft distributed parallel to the first threaded rod.

[0013] Preferably, the first threaded rod and the first splined shaft are connected by the same bending seat, the bending seat is connected by a circular internal threaded sleeve that is rotatably connected to it and is sleeved on the surface of the first threaded rod and threadedly connected to it, and the bending seat is connected by a second splined shaft that is rotatably connected to it and is sleeved on the first splined shaft and is adapted to the first splined shaft.

[0014] Preferably, a second bevel gear is fitted onto the splined shaft and fixedly connected thereto, a third bevel gear that meshes with the second bevel gear is rotatably connected inside the bending seat, and a second threaded rod that is coaxially fixed to the third bevel gear is rotatably connected below the bending seat.

[0015] Preferably, a vertical rod is fixed to the lower surface of the bending seat, which is parallel to the second threaded rod. A rectangular internal threaded sleeve is fitted on the second threaded rod and is threadedly connected to it. The rectangular internal threaded sleeve is penetrated by the vertical rod and is slidably connected to the vertical rod. A connecting rod is rotatably connected to the surface of the rectangular internal threaded sleeve. A round rod is fixed to the free end of the connecting rod by bolts. The round rod is rotatably connected to the surface of the U-shaped plate.

[0016] Compared with the prior art, the present invention provides an internal graphitization furnace for graphite anode materials, which has the following beneficial effects: When the first and second working plates connected by rotation are in a planar state, the first and second working plates as a whole are inclined, and the two first working plates and the two second working plates form a figure-eight shape, as shown in Figure 1. When the two figure-eight shaped second working plates are driven downward by the movable mechanism, the two second working plates can exert a downward pressure on the electrode columns located in the furnace body, thereby preventing the middle part of a series of electrode columns from arching. The adjustment mechanism can drive the tilt angle of the first working plate and the second working plate, so that the first working plate and the second working plate can be matched with electrode posts of different sizes. The adjustment mechanism allows one of the second working plates and its corresponding first working plate to be perpendicular to each other, while the other second working plate and its corresponding first working plate remain planar, as shown in Figure 6. Next, the first and second working plates, along with the adjustment mechanism, are rotated to the state shown in Figure 7. This allows the vertically positioned second working plate to move vertically or horizontally via the movable mechanism, thereby pushing the electrode column towards one end of the furnace body. The electrode posts are pre-compressed when they are placed into the furnace, which makes the electrode posts fit together more tightly, rather than relying on compression at both ends after a string of electrode posts is assembled. The adjustment mechanism allows both second work plates to be perpendicular to their corresponding first work plates, such as... Figure 8 As shown, the two second working plates can then be driven to move closer to each other, so that the second working plates can hold the electrode post, and the assembly of the electrode post can be completed in conjunction with the external lifting device. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a structural schematic diagram of the location of the arc-shaped groove in this invention; Figure 3 shows the present invention. Figure 2 Enlarged structural diagram at point A; Figure 4 shows the invention. Figure 2 Enlarged structural diagram at point B; Figure 5 is a structural schematic diagram of the location of the bending seat of the present invention; Figure 6 is a schematic diagram of the structure of the first and second working plates after they have been flipped. Figure 1 ; Figure 7 is a schematic diagram of the structure of the first and second working plates after they have been flipped. Figure 2 ; Figure 8 is a schematic diagram of the structure of the first and second working plates after they have been flipped. Figure 3 ; Figure 9 is an enlarged structural schematic diagram of point C in Figure 1 of the present invention.

[0018] In the diagram: 1. Furnace body; 21. First working plate; 22. Second working plate; 31. U-shaped plate; 32. Bearing plate; 33. Arc groove; 34. Straight groove; 35. Support rod; 36. First worm gear; 37. First worm wheel; 38. Rectangular frame; 39. Sliding rod; 310. Positioning seat; 311. Vertical plate; 312. Second worm gear; 313. Bevel gear one; 314. Second worm wheel; 315. Long rod; 316. Arc rack; 41. Floor; 42. 43. Threaded rod; 44. Splined shaft one; 45. Bending seat; 46. Circular internal threaded sleeve; 47. Splined shaft two; 48. Second bevel gear; 49. Third bevel gear; 40. Second threaded rod; 410. Vertical rod; 411. Rectangular internal threaded sleeve; 412. Connecting rod; 413. Round rod. Detailed Implementation

[0019] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings. Example

[0020] As shown in Figure 1- Figure 9 As shown, an embodiment of the present invention provides a graphite anode material internal graphitization furnace, including a furnace body 1. Two first working plates 21 are arranged on the upper part of the furnace body 1, and a second working plate 22 is rotatably connected to one side of each first working plate 21. An adjustment mechanism and a movable mechanism are arranged on the upper part of the furnace body 1.

[0021] When the first working plate 21 and the second working plate 22 connected by rotation are in a planar state, the corresponding first working plate 21 and the second working plate 22 are inclined as a whole, and the two first working plates 21 and the two second working plates 22 form a figure-eight shape, as shown in Figure 1; When the two figure-eight shaped second working plates 22 are driven downward by the moving mechanism, the two second working plates 22 can apply downward pressure to the electrode posts located in the furnace body 1, thereby preventing the middle part of a series of electrode posts from arching. The adjustment mechanism can drive the tilt angle of the first working plate 21 and the second working plate 22, so that the first working plate 21 and the second working plate 22 can be matched with electrode posts of different sizes. The adjustment mechanism allows one of the second working plates 22 and its corresponding first working plate 21 to be perpendicular to each other, while the other second working plate 22 and its corresponding first working plate 21 remain planar. Figure 6 As shown, next, let the first work plate 21 and the second work plate 22 and the adjustment The entire section mechanism is rotated to the state shown in Figure 7, allowing the second working plate 22, which is in a vertical state, to move up and down or horizontally through the movable mechanism. This allows the second working plate 22 to push the electrode column towards one end of the furnace body 1, so that the electrode column can be pre-compressed when it is placed into the furnace body 1, making the electrode columns fit together more tightly, rather than relying solely on the compression at both ends after a string of electrode columns is assembled. The adjustment mechanism allows both second working plates 22 to be perpendicular to their corresponding first working plates 21, such as... Figure 8 As shown, the two second working plates 22 can then be driven to move closer to each other, so that the second working plates 22 can hold the electrode post, and the assembly of the electrode post can be completed in conjunction with the external lifting device.

[0022] like Figure 2 As shown in Figure 3, the adjustment mechanism includes a U-shaped plate 31 located above the furnace body 1. Both ends of the U-shaped plate 31 are fixedly connected to a bearing plate 32. Each bearing plate 32 has two symmetrically distributed arc-shaped grooves 33 on its surface, and a straight groove 34 that communicates with the arc-shaped grooves 33.

[0023] like Figures 2-4 As shown, a support rod 35 is fixedly connected to the support plate 32, a first worm gear 36 driven by an external motor is rotatably connected to the support rod 35, and a first worm wheel 37 that meshes with the first worm gear 36 is rotatably connected to the support plate 32.

[0024] Each arc-shaped groove 33 corresponds to a first worm 36 and a first worm wheel 37.

[0025] As shown in Figures 2-3, each of the arc-shaped grooves 33 corresponds to a positioning seat 310 rotatably connected to the bearing plate 32. The positioning seat 310 and the center of the arc-shaped groove 33 are at the same position. The first working plate 21 is slidably connected to two positioning seats 310 distributed in front and behind.

[0026] like Figure 2 As shown in Figure 3, each of the first worm gears 37 is provided with a rectangular frame 38 fixed coaxially to it. The two side walls opposite to the first working plate 21 are fixedly connected with sliding rods 39 that are slidably adapted to the arc groove 33 and the straight groove 34. The sliding rods 39 are slidably adapted to the grooves on the surface of the rectangular frame 38.

[0027] like Figures 2-4 As shown, two upright plates 311 are fixedly connected to the two opposite side walls of the first working plate 21. A second worm gear 312 is rotatably connected between the two upright plates 311. A bevel gear 313 coaxially fixed to the second worm gear 312 is provided on the outer side of one of the upright plates 311. A second worm wheel 314 coaxially fixed to the second working plate 22 and meshing with the second worm gear 312 is provided on the side wall of the first working plate 21.

[0028] The second worm gear 314 and the second worm 312 have a self-locking function, which allows the angle between the first working plate 21 and the second working plate 22 to be locked. As shown in Figures 2 and 4, and Figure 9 As shown, a long rod 315 is fixedly connected to the surface of the bearing plate 32, and an arc-shaped rack 316 is fixedly connected to the free end of the long rod 315. The arc-shaped rack 316 meshes with a bevel gear 313.

[0029] As shown in Figures 1 and 5, and Figure 9 As shown, the movable mechanism includes two floor plates 41 located on the outside of the furnace body 1 and symmetrically distributed. A first threaded rod 42 is rotatably connected between the two floor plates 41, and a splined shaft 43 distributed parallel to the first threaded rod 42.

[0030] The first threaded rod 42 and the splined shaft 43 are driven by different external motors.

[0031] The first threaded rod 42 and the splined shaft 43 are connected by the same bending seat 44. A circular internal threaded sleeve 45 is rotatably connected to the bending seat 44 and is fitted onto the surface of the first threaded rod 42 and threadedly connected to the first threaded rod 42. A spline shaft 46 is rotatably connected to the bending seat 44 and is fitted onto the spline shaft 43 and adapted to the spline shaft 43.

[0032] A second bevel gear 47 is fitted onto the splined shaft 46 and fixedly connected thereto. A third bevel gear 48 that meshes with the second bevel gear 47 is rotatably connected inside the bending seat 44. A second threaded rod 49 that is coaxially fixed to the third bevel gear 48 is rotatably connected below the bending seat 44.

[0033] The lower surface of the bending seat 44 is vertically fixed with a vertical rod 410 that is parallel to the second threaded rod 49. A rectangular internal threaded sleeve 411 is fitted onto the second threaded rod 49 and is threadedly connected to it. The rectangular internal threaded sleeve 411 is penetrated by the vertical rod 410 and is slidably connected to the vertical rod 410. A connecting rod 412 is rotatably connected to the surface of the rectangular internal threaded sleeve 411. The free end of the connecting rod 412 is fixed with a round rod 413 by bolts. The round rod 413 is rotatably connected to the surface of the U-shaped plate 31.

[0034] Both the connecting rod 412 and the round rod 413 are driven to rotate by an external motor.

[0035] Working principle: When the first threaded rod 42 is driven to rotate by an external motor, it can drive the bending seat 44 to move horizontally along the first threaded rod 42 through the circular internal threaded sleeve 45. The bending seat 44 can drive the second threaded rod 49, the rectangular internal threaded sleeve 411, and the connecting rod 412 to move accordingly. The connecting rod 412 can drive the U-shaped plate 31 through the round rod 413, thereby driving the first working plate 21 and the second working plate 22 to move horizontally accordingly. When the spline shaft 43 is driven to rotate by an external motor, the spline shaft 43 can drive the spline shaft 46 to rotate accordingly. The spline shaft 46 can drive the second bevel gear 47 sleeved on its surface to rotate accordingly. The second bevel gear 47 can drive the third bevel gear 48 meshing with it to rotate accordingly. The third bevel gear 48 can drive the second threaded rod 49 fixed coaxially with it to rotate accordingly. The second threaded rod 49 can drive the rectangular internal threaded sleeve 411 to move in the vertical direction. The rectangular internal threaded sleeve 411 can drive the U-shaped plate 31, as well as the first working plate 21 and the second working plate 22, to move in the vertical direction through the connecting rod 412 and the round rod 413.

[0036] When the first working plate 21 and the second working plate 22 connected by rotation are in a planar state, the corresponding first working plate 21 and the second working plate 22 are inclined as a whole, and the two first working plates 21 and the two second working plates 22 form a figure-eight shape, as shown in Figure 1; When the two figure-eight shaped second working plates 22 move downwards, the two second working plates 22 can provide support to the area located at... The electrode posts of furnace body 1 are subjected to a downward pressure, thereby preventing the middle part of a series of electrode posts from arching. When it is necessary to adjust the tilt angle of the two second working plates 22 to adapt to electrode posts of different sizes, the first worm gear 36 is driven to rotate by an external motor. The first worm gear 36 can drive the first worm wheel 37, which meshes with it, to rotate. The first worm wheel 37 can drive the rectangular frame 38 to rotate. The rectangular frame 38 can push the sliding rod 39 to slide along the arc groove 33. The sliding rod 39 can drive the first working plate 21 to rotate. At this time, the first working plate 21 rotates around the positioning seat 310 as the axis. The first working plate 21 can drive the second working plate 22 to rotate, thereby changing the tilt angle of the first working plate 21 and the second working plate 22, so that the device can be adapted to electrode posts of various sizes.

[0037] When the first working plate 21 and the second working plate 22 need to be used in conjunction with an external lifting device to act as a clamping device to clamp the electrode column, the connecting rod 412 is first driven to rotate by the motor, which can drive the first working plate 21 and the second working plate 22 to rotate 180 degrees. When the rectangular frame 38 pushes the sliding rod 39 to one end of the linear groove 34, the first working plate 21 will rotate to a horizontal position, as shown. Figure 8 As shown, the bevel gear 313 on the side wall of the first working plate 21 gradually meshes with the arc-shaped rack 316 while rotating with the first working plate 21, causing the bevel gear 313 to rotate. The bevel gear 313 drives the second worm 312 to rotate, which in turn drives the second worm wheel 314 to rotate. The second worm wheel 314 then drives the second working plate 22 to rotate, so that after rotating ninety degrees, the second working plate 22 is perpendicular to the first working plate 21. Figure 8 As shown; Next, the rectangular frame 38 continues to push the sliding rod 39 to move closer to the U-shaped plate 31, so that the sliding rod 39 can drive the first working plate 21 and the second working plate 22 to move closer to the U-shaped plate 31, so that the two vertical second working plates 22 can complete the clamping work of the electrode post. During the assembly of the electrode posts into the furnace body 1, when multiple electrode posts need to be pre-pressurized, one set of first working plates 21 and second working plates 22 is made to be in a planar state, while another set of first working plates 21 and second working plates 22 is made to be in a perpendicular state, such as... Figure 6 As shown; Next, the round rod 413 is driven to rotate by the motor, which in turn drives the first working plate 21 and the second working plate 22 to rotate accordingly. Then, the connecting rod 412 is driven to rotate by the motor, which can drive the first working plate 21 and the second working plate 22 to rotate accordingly, finally reaching the state shown in Figure 7. During operation, the second working plate 22, which is in a vertical position, is moved downwards and then horizontally, so that the second working plate 22 can push the electrode post to complete the pre-pressurization of the electrode post.

[0038] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A graphite negative material in-line graphitization furnace comprising a furnace body (1), characterized in that, Two first working plates (21) are provided above the furnace body (1). A second working plate (22) is rotatably connected to one side of each first working plate (21). An adjustment mechanism and an movable mechanism are provided above the furnace body (1). The adjustment mechanism includes a U-shaped plate (31) located above the furnace body (1). Both ends of the U-shaped plate (31) are fixedly connected to a bearing plate (32). Each bearing plate (32) has two symmetrically distributed arc grooves (33) on its surface, and a straight groove (34) communicating with the arc grooves (33).

2. The graphitization furnace for graphite anode material according to claim 1, characterized in that, A support rod (35) is fixedly connected to the support plate (32), a first worm gear (36) driven by an external motor is rotatably connected to the support rod (35), and a first worm wheel (37) meshing with the first worm gear (36) is rotatably connected to the support plate (32).

3. The graphitization furnace for graphite anode material according to claim 2, characterized in that, Each of the arc grooves (33) corresponds to a positioning seat (310) rotatably connected to the bearing plate (32). The positioning seat (310) and the center of the arc groove (33) are at the same position. The first working plate (21) is slidably connected to the two positioning seats (310) distributed in front and behind.

4. The graphitization furnace with internal graphitization of graphite anode material according to claim 3, characterized in that, Each of the first worm gears (37) is provided with a rectangular frame (38) fixed coaxially with it. On the two side walls opposite to the first working plate (21), there are sliding rods (39) that are slidably adapted to the arc groove (33) and the straight groove (34). The sliding rods (39) are slidably adapted to the groove on the surface of the rectangular frame (38).

5. The graphitization furnace for graphite anode material according to claim 4, characterized in that, Two vertical plates (311) are fixedly connected to each of the two opposite side walls of the first working plate (21), and a second worm gear (312) is rotatably connected between the two vertical plates (311). A bevel gear (313) is provided on the outer side and is fixed coaxially with the second worm (312). A second worm wheel (314) is provided on the side wall of the first working plate (21) and is fixed coaxially with the second working plate (22) and meshes with the second worm (312).

6. The graphitization furnace for graphite anode material according to claim 5, characterized in that, A long rod (315) is fixedly connected to the surface of the bearing plate (32), and an arc-shaped rack (316) is fixedly connected to the free end of the long rod (315). The arc-shaped rack (316) meshes with a bevel gear (313).

7. The graphitization furnace for graphite anode material according to claim 1, characterized in that, The movable mechanism includes two floor plates (41) located on the outside of the furnace body (1) and symmetrically distributed, with a first threaded rod (42) rotatably connected between the two floor plates (41), and a spline shaft (43) distributed parallel to the first threaded rod (42).

8. The graphitization furnace for graphite anode material according to claim 7, characterized in that, The first threaded rod (42) and the first splined shaft (43) are connected by the same bending seat (44). The bending seat (44) is connected by a circular internal threaded sleeve (45) that is rotatably connected to it and is sleeved on the surface of the first threaded rod (42) and threadedly connected to the first threaded rod (42). The bending seat (44) is connected by a splined shaft (46) that is rotatably connected to it and is sleeved on the first splined shaft (43) and adapted to the first splined shaft (43).

9. The graphitization furnace for graphite anode material according to claim 8, characterized in that, The spline shaft (46) is fitted with a second bevel gear (47) which is fixedly connected to it. The bending seat (44) is rotatably connected to a third bevel gear (48) which meshes with the second bevel gear (47). The bending seat (44) is rotatably connected to a second threaded rod (49) which is coaxially fixed to the third bevel gear (48).

10. A graphitization furnace for graphite anode materials according to claim 9, characterized in that, The lower surface of the bending seat (44) is vertically fixed with a vertical rod (410) that is parallel to the second threaded rod (49). A rectangular internal threaded sleeve (411) is fitted onto the second threaded rod (49) and is threadedly connected to it. The internal threaded sleeve (411) is penetrated by the upright (410) and slidably connected to the upright (410). A connecting rod (412) is rotatably connected to the surface of the rectangular internal threaded sleeve (411). A round rod (413) is fixed to the free end of the connecting rod (412) by bolts. The round rod (413) is rotatably connected to the surface of the U-shaped plate (31).

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