Roasting device and roasting method for graphite electrode production

Abstract

The invention relates to the technical field of graphite electrode production, in particular to a roasting device for graphite electrode production and a roasting method.The roasting device comprises a roasting box, a sieve plate and a plurality of rotating rollers, a plurality of connecting plates corresponding to the rotating rollers are horizontally arranged in the roasting box in a sliding mode, the rotating rollers are embedded and rotationally connected to the connecting plates, and a through opening is formed in the roasting box; the end part of the rotating roller penetrates through the through hole and extends to the outer side of the roasting box, and a pair of arc-shaped scraping plates is arranged on the outer side wall of the rotating roller; and the scraping assembly drives a plurality of pairs of arc-shaped scraping plates to synchronously scrape residues on the outer side wall of the rotating roller. Compared with roasting in the prior art, by arranging the sliding assembly, the rotating assembly and other parts, the distance between the rotating rollers can be adjusted, and the graphite electrode roasting device is suitable for graphite electrodes of different thicknesses. The rotating roller can rotate to drive the electrode to roll, so that uniform roasting is ensured. During roasting or after roasting is finished, the scraping assembly can clean residues on the rotating roller.

Description

Technical Field

[0001] The present invention relates to the technical field of graphite electrode production, and in particular to a roasting device and a roasting method for producing graphite electrodes. Background Art

[0002] Graphite electrodes are made of petroleum coke and needle coke as main materials and are formed into conductive materials through mechanical processing. Graphite electrodes are light in weight, have good thermal stability, and can be processed faster than copper materials. Graphite material is a better raw material for making electrodes. During the production process, graphite electrodes are formed through calcination, batching, kneading, pressing, roasting, graphitization and other processing steps. Roasting requires the use of a roasting furnace for processing.

[0003] Prior art, such as Publication No. CN218600074U, discloses a baking device for graphite electrode production. The device comprises a baking chamber and a filter plate slidably connected to its inner wall. Upper and lower sliding grooves are provided on its side walls, slidingly connected to the upper and lower sealing plates, respectively. The upper sealing plate is connected to a transparent plate, while a stopper on the bottom wall of the lower sealing plate is threadedly connected to a fixing bolt, the other end of which is threadedly connected to the baking chamber. The inner wall is rotatably connected to evenly spaced turning rollers, which also connect to cleaning components. The first and second cleaning rings clean the surface of the turning rollers as they rotate, extending the equipment life and improving the uniformity of heating the graphite electrodes.

[0004] However, this technical solution has the following problems during actual use:

[0005] The evenly distributed rotating rollers are connected to the inner wall of the roasting box. One end of the rollers extends through the box and is fixed to the first gear. When the first gear rotates, it drives the rotating rollers and the graphite electrode to rotate synchronously, improving the uniformity of heating of the graphite electrode. However, because the spacing between adjacent rotating rollers cannot be adjusted, the device can only accommodate graphite electrodes of a limited range of thicknesses. It is incompatible with electrodes outside this range, limiting its application scenarios and resulting in low overall applicability. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem in the prior art that the spacing between adjacent turning rollers cannot be adjusted, resulting in the device being able to only adapt to graphite electrodes of limited thickness specifications, and to propose a baking device and baking method for graphite electrode production.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A roasting device and roasting method for producing graphite electrodes, comprising a roasting box, a sieve plate installed in the roasting box, and a plurality of rollers, wherein a plurality of connecting plates corresponding to the rollers are horizontally slidably provided in the roasting box, and the rollers are embedded in and rotatably connected to the connecting plates, the roasting box is provided with a through opening, the ends of the rollers pass through the through opening and extend to the outside of the roasting box, and a pair of arc-shaped scrapers are provided on the outer walls of the rollers, and further comprising;

[0009] A sliding assembly, wherein the sliding assembly causes the plurality of connecting plates to slide horizontally synchronously to adjust the distance between two adjacent rollers;

[0010] A rotating assembly drives the plurality of rollers to rotate synchronously;

[0011] The scraping assembly drives a plurality of pairs of arc-shaped scrapers to synchronously scrape the residues on the outer side wall of the roller.

[0012] Preferably, the sliding assembly comprises:

[0013] Side trough 1, side trough 1 is provided on the vertical inner wall of the roasting box;

[0014] A fixed block, the fixed block being fixedly connected in the first side groove;

[0015] Slide blocks, wherein a plurality of slide blocks are horizontally slidably arranged in the side groove 1, and the slide blocks are symmetrically distributed on both sides of the fixed block;

[0016] A slide rod, the slide rod is fixedly connected in the side groove 1, and the slider is horizontally slidably sleeved on the slide rod;

[0017] I-beams, which are fixedly connected to the fixed block and the sliding block respectively;

[0018] The traction plates are rotatably sleeved on the I-beams, and the adjacent traction plates are arranged in a cross-type manner.

[0019] Preferably, the sliding assembly further comprises:

[0020] Connecting ears 1, which are arranged in pairs and are fixedly connected to the vertical inner wall of the roasting box;

[0021] a screw, the screw being rotatably connected to opposite side walls of the two connecting ears;

[0022] A sleeve block, the sleeve block is threadedly connected to the screw rod, and the sleeve block is fixedly connected to one of the I-beams;

[0023] Side trough 2, which is provided on the inner wall of the roasting box, and the sleeve block is horizontally slidably connected to the side trough 2;

[0024] A screw block is fixedly connected to one end of the screw rod extending to the opposite side of the two connecting ears.

[0025] Preferably, a protective cover is provided on the vertical outer side wall of the roasting box, and a pair of disassembly plates are fixedly connected to the protective cover, and the disassembly plates and the roasting box are threadedly connected with the same bolt.

[0026] Preferably, a screw groove for facilitating installation of the first bolt is provided on the vertical outer side wall of the roasting box.

[0027] Preferably, the rotating assembly comprises:

[0028] Connecting ears 2, which are arranged in pairs and are fixedly connected to the vertical outer side wall of the roasting box;

[0029] A cross column, the cross column rotatably connecting the two connecting ears to two opposite side walls;

[0030] Motor 1, which is fixedly connected to the connecting ear 2 and is used to drive the cross column to rotate;

[0031] An L-shaped plate is arranged outside the roasting box and is rotatably sleeved on the rotating roller.

[0032] Preferably, the rotating assembly further comprises:

[0033] A rotating block is embedded in and rotatably connected to the L-shaped plate, and the cross column slides horizontally through the rotating block;

[0034] Bevel gear 1, which is fixedly sleeved on the cross column and fixedly connected to the rotating block;

[0035] Bevel gear 2 is fixedly sleeved on one end of the rotating roller, and bevel gear 2 is meshed with bevel gear 1.

[0036] Preferably, the scraping assembly comprises:

[0037] A plurality of vertical rods are arranged in the roasting box corresponding to the rotating rollers;

[0038] A telescopic rod, the telescopic rod being fixedly connected to opposite side walls of two adjacent vertical rods;

[0039] A screw rod is rotatably connected to the inner wall of the roasting box, and one of the vertical rods is threadedly connected to the screw rod;

[0040] Motor 2 is fixedly connected to the roasting box and is used to drive the screw to rotate.

[0041] Preferably, the scraping assembly further comprises:

[0042] A transmission plate, the transmission plate is arranged at the bottom of the vertical rod, and the bottom end of the transmission plate is fixedly connected to one of the arc-shaped scrapers;

[0043] Bolt 2, the same bolt 2 is threadedly connected to the vertical rod and the transmission plate, and a matching nut 1 is threadedly connected to the bolt 2;

[0044] A convex plate fixedly connected to the bottom of the arc-shaped scraper;

[0045] Bolt three is threadedly connected to the two convex plates, and a matching nut two is threadedly connected to the bolt three.

[0046] A roasting method for producing graphite electrodes, comprising the following steps:

[0047] Step S1, adjusting the roller spacing by a sliding assembly to accommodate graphite electrodes of different thicknesses;

[0048] The screw is rotated to rotate on the connecting ear 1, and the sleeve slides along the side groove 2, driving the I-beam to move. The sliding blocks on both sides of the fixed block are linked by the cross-arranged traction plates to slide synchronously along the slide rod in the side groove 1, and the connecting plate moves horizontally accordingly, completing the adjustment of the distance between adjacent rollers.

[0049] Step S2, placing the graphite electrode on the rotating roller, closing the calcination box for calcination, rolling the graphite electrode for uniform calcination, and starting the rotating assembly;

[0050] The motor 1 drives the cross column on the connecting ear 2 to rotate, and the bevel gear 1 engages with the bevel gear 2, driving the roller to rotate on the L-shaped plate and the connecting plate, so that the electrode rolls and is heated evenly;

[0051] Step S3: during or after the roasting, starting the scraping component to clean the roller residue;

[0052] The second motor drives the screw to rotate, driving the vertical rod to move, the telescopic rod adapts to the change in spacing, and the arc-shaped scraper is close to the rotating roller; the scraper fixed by the transmission plate and the second bolt cooperates with the paired scrapers connected by the convex plate and the third bolt to synchronously scrape off the residue, and the screen plate receives the fallen objects.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] The present invention utilizes components such as a sliding assembly and a rotating assembly to adjust the roller spacing to accommodate graphite electrodes of varying thicknesses. The rollers rotate, driving the electrodes to tumble and ensuring uniform roasting. A scraping assembly cleans residue from the rollers during or after roasting. The scrapers adhere to the rollers, working in pairs. The telescopic rod adjusts to the changing spacing, and the screen catches any debris. This facilitates cleaning, ensuring both adaptability and uniform roasting, making it easy to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a schematic diagram of the overall structure of a baking device and baking method for graphite electrode production proposed by the present invention;

[0056] Figure 2 This is a schematic diagram of the internal structure of a baking box in a baking device and baking method for graphite electrode production proposed by the present invention;

[0057] Figure 3 This is a schematic diagram of a connecting plate in a baking device and baking method for graphite electrode production proposed by the present invention;

[0058] Figure 4 This is a schematic diagram of bevel gear 1 and bevel gear 2 in a baking device and baking method for graphite electrode production proposed in the present invention;

[0059] Figure 5 A schematic diagram of a curved scraper in a roasting device and roasting method for producing graphite electrodes proposed in the present invention;

[0060] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0061] In the picture:

[0062] 1. Calcination box; 2. Screen plate; 3. Roller;

[0063] 4. Connecting plate; 41. Side groove 1; 42. Fixed block; 43. Slider; 44. Sliding rod; 45. I-beam; 46. Pull plate; 47. Connecting ear 1; 48. Screw; 49. Bushing block; 491. Side groove 2; 492. Twist block;

[0064] 5. Through port; 51. Connecting ear 2; 52. Cross column; 53. Motor 1; 54. L-shaped plate; 55. Rotating block; 56. Bevel gear 1; 57. Bevel gear 2;

[0065] 6. Protective cover; 61. Disassembly plate; 62. Bolt 1; 63. Screw groove;

[0066] 7. Vertical rod; 71. Telescopic rod; 72. Screw rod; 73. Motor 2; 74. Transmission plate; 75. Bolt 2; 76. Curved scraper; 77. Convex plate; 78. Bolt 3. DETAILED DESCRIPTION

[0067] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0068] Reference Figures 1-6 , a roasting device and roasting method for graphite electrode production, including a roasting box 1, a sieve plate 2 installed in the roasting box 1, and a plurality of rollers 3. The roasting box 1 serves as the basic supporting structure of the entire roasting device, providing a stable installation space and a closed roasting environment for the core components such as the internal sieve plate 2 and the rollers 3, which can effectively ensure the temperature stability and heat accumulation efficiency during the roasting process. A plurality of connecting plates 4 corresponding to the rollers 3 are arranged for horizontal sliding in the roasting box 1, and the rollers 3 are embedded and rotatably connected to the connecting plates 4. A through opening 5 is provided on the roasting box 1, and the ends of the rollers 3 pass through the through opening 5 and extend to the outside of the roasting box 1. A pair of arc-shaped scrapers 76 are provided on the outer wall of the roller 3. The arc structure of the arc-shaped scraper 76 is highly fitted with the outer wall of the roller 3, which can efficiently scrape off the residual material on the surface of the roller 3 and prevent the accumulation of residues from affecting the rotation accuracy of the roller 3 and the material conveying effect. The paired design further improves the scraping coverage, ensures the cleanliness of the surface of the roller 3, and reduces the interference of impurities during the roasting process. Also includes;

[0069] The sliding assembly enables the plurality of connecting plates 4 to slide horizontally synchronously to adjust the distance between two adjacent rollers 3;

[0070] A rotating assembly drives a plurality of rollers 3 to rotate synchronously;

[0071] The scraping assembly drives a plurality of pairs of arc-shaped scrapers 76 to synchronously scrape the residue on the outer side wall of the roller 3.

[0072] Reference Figure 2-Figure 3 The sliding assembly includes: a side groove 41, a fixing block 42, a slider 43, a slide rod 44, an I-beam 45 and a traction plate 46.

[0073] Side slot 1 41 is defined on the vertical inner wall of roasting box 1 ; a fixed block 42 is fixedly connected to side slot 1 41 ; a plurality of sliders 43 are horizontally slidably disposed within side slot 1 41 , with the sliders 43 symmetrically distributed on either side of the fixed block 42 ; a slide rod 44 is fixedly connected to side slot 1 41 , with the sliders 43 horizontally slidingly sleeved thereon; an I-beam 45 is fixedly connected to the fixed block 42 and the sliders 43 , respectively; the I-beam 45 serves as the pivot point for traction plates 46 , and its structural design can stably bear the force exerted by the traction plates 46 , ensuring stability during cross-rotation of the traction plates 46 and achieving synchronous linkage of the sliders 43 . The traction plates 46 are rotatably sleeved on the I-beam 45 , with adjacent traction plates 46 arranged in a cross pattern.

[0074] The sliding assembly also includes: a connecting ear 47, a screw 48, a sleeve block 49, a side groove 491 and a screw block 492.

[0075] A pair of connecting ears 47 are fixedly connected to the vertical inner wall of the roasting box 1; a screw 48 is rotatably connected to the opposite side walls of the two connecting ears 47; a sleeve 49 is threadedly connected to the screw 48. The screw 48, through the threaded engagement with the sleeve 49, converts rotational motion into horizontal linear motion of the sleeve 49, achieving precise actuation of the sliding assembly, high adjustment accuracy, and convenient operation. The sleeve 49 is fixedly connected to one of the I-beams 45; a side groove 491 is defined on the inner wall of the roasting box 1, and the sleeve 49 and the side groove 491 are horizontally slidably connected; a screw block 492 is fixedly connected to the end of the screw 48 that extends to the opposite side of the two connecting ears 47.

[0076] A protective cover 6 is provided on the vertical outer wall of the roasting box 1. A pair of detachable plates 61 are fixedly connected to the protective cover 6. The detachable plates 61 are threadedly connected to the roasting box 1 by a common bolt 62. The protective cover 6 effectively shields the extended ends of the rollers 3 and related transmission components, preventing dust and impurities from entering the transmission area and affecting equipment operation. It also prevents operators from directly contacting rotating components, thereby improving the safety of the device.

[0077] A screw groove 63 for facilitating the installation of a bolt 62 is provided on the vertical outer side wall of the roasting box 1 .

[0078] Reference Figure 4 The rotating assembly includes: a second connecting ear 51, a cross column 52, a motor 53 and an L-shaped plate 54.

[0079] A pair of connecting ears 51 are fixedly attached to the vertical outer walls of the roasting box 1. A cross post 52 is rotatably connected to the opposite side walls of the two connecting ears 51. The cross post 52 is structurally designed to accommodate the horizontal sliding of the rotating block 55, maintaining effective connection with the rotating block 55 even when the spacing between the rollers 3 is adjusted, ensuring continuous power transmission. A motor 53 is fixedly connected to the connecting ears 51 and is used to drive the cross post 52. An L-shaped plate 54 is located outside the roasting box 1 and rotatably fits over the rollers 3.

[0080] The rotating assembly further includes a rotating block 55 , a bevel gear 1 56 and a bevel gear 2 57 .

[0081] Rotating block 55 is embedded and rotatably connected to L-shaped plate 54, and cross column 52 slides horizontally through rotating block 55. Bevel gear 1 56 is fixedly mounted on cross column 52 and fixedly connected to rotating block 55. Bevel gear 2 57 is fixedly mounted on one end of roller 3 and meshes with bevel gear 1 56. Bevel gear 1 56, through its meshing with bevel gear 2 57, converts the horizontal rotational force of cross column 52 into synchronous rotational force for the rollers 3, achieving high transmission efficiency and precise direction conversion.

[0082] Reference Figure 5-Figure 6 The scraping assembly includes: a vertical rod 7, a telescopic rod 71, a screw rod 72 and a motor 2 73.

[0083] Several vertical rods 7 are arranged within the roasting box 1, corresponding to the rollers 3. A telescopic rod 71 is fixedly connected to the opposite side walls of two adjacent vertical rods 7. A screw rod 72 is rotatably connected to the inner wall of the roasting box 1, with one of the vertical rods 7 being threadedly connected to the screw rod 72. A second motor 73 is fixedly connected to the roasting box 1 and is used to drive the screw rod 72. The rotation of the screw rod 72 drives the horizontal movement of the vertical rods 7, which in turn drives a curved scraper 76 to scrape away residue from the rollers 3.

[0084] The scraping assembly further includes: a transmission plate 74 , a second bolt 75 , a convex plate 77 and a third bolt 78 .

[0085] A transmission plate 74 is mounted at the bottom of the vertical rod 7. The bottom end of the transmission plate 74 is fixedly connected to one of the curved scrapers 76. A second bolt 75 is threadedly connected to the vertical rod 7 and the transmission plate 74. A matching nut 1 is threaded onto the second bolt 75. The second bolt 75 facilitates replacement of curved scrapers 76 of varying sizes depending on the specifications of the roller 3, enhancing the versatility of the device. A raised plate 77 is fixedly connected to the bottom of the curved scrapers 76. A third bolt 78 is threadedly connected to both raised plates 77. A matching nut 2 is threaded onto the third bolt 78. The third bolt 78, threadedly connected to both raised plates 77 and fitted with a second nut, securely connects the paired curved scrapers 76, ensuring a tight fit against the outer wall of the roller 3, enhancing the thoroughness of scraping residue and facilitating assembly and disassembly for maintenance.

[0086] The present invention can be explained through the following operation mode:

[0087] Step S1, adjusting the distance between the rollers 3 by a sliding assembly to accommodate graphite electrodes of different thicknesses;

[0088] The screw block 492 is rotated to rotate the screw rod 48 on the connecting ear 1 47, and the sleeve block 49 slides along the side groove 2 491, driving the I-beam 45 to move. The sliders 43 on both sides of the fixed block 42 are linked by the cross-arranged traction plates 46 to slide synchronously along the slide rods 44 in the side groove 1 41, and the connecting plate 4 moves horizontally accordingly, completing the adjustment of the distance between adjacent rollers 3.

[0089] Step S2: Place the graphite electrode on the rotating roller 3 and close the calcination box 1 for calcination. Roll the graphite electrode to ensure uniform calcination and start the rotating assembly.

[0090] Motor 1 53 drives the cross column 52 on the connecting ear 2 51 to rotate, and through bevel gear 1 56 meshing with bevel gear 2 57, drives the roller 3 to rotate on the L-shaped plate 54 and the connecting plate 4, so that the electrode rolls and is heated evenly;

[0091] Step S3, during or after roasting, start the scraping assembly to clean the residue on the roller 3; the motor 2 73 drives the screw 72 to rotate, driving the vertical rod 7 to move, the telescopic rod 71 adapts to the change in spacing, and the arc scraper 76 is close to the roller 3; the arc scraper 76 fixed by the transmission plate 74 and the bolt 2 75 cooperates with the paired scrapers connected by the convex plate 77 and the bolt 3 78 to scrape off the residue synchronously, and the screen plate 2 takes over the dropped objects.

[0092] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A baking device for producing graphite electrodes, comprising a baking box (1), a sieve plate (2) installed in the baking box (1), and a plurality of rollers (3), characterized in that: A plurality of connecting plates (4) corresponding to the rollers (3) are horizontally slidably provided in the roasting box (1), and the rollers (3) are embedded in and rotatably connected to the connecting plates (4). A through opening (5) is provided on the roasting box (1), and the ends of the rollers (3) pass through the through opening (5) and extend to the outside of the roasting box (1). A pair of arc-shaped scrapers (76) are provided on the outer side walls of the rollers (3), and further comprising; A sliding assembly, wherein the sliding assembly causes the plurality of connecting plates (4) to slide horizontally synchronously to adjust the distance between two adjacent rotating rollers (3); A rotating assembly, the rotating assembly drives the plurality of rollers (3) to rotate synchronously; A scraping assembly drives a plurality of pairs of arc-shaped scrapers (76) to synchronously scrape away residues on the outer side wall of the rotating roller (3).

2. A graphite electrode production baking device according to claim 1, characterized in that: The sliding assembly comprises: Side groove one (41), side groove one (41) is opened on the vertical inner wall of the roasting box (1); A fixed block (42), the fixed block (42) is fixedly connected in the side groove (41); Slide blocks (43), wherein a plurality of slide blocks (43) are horizontally slidably arranged in the side groove (41), and the slide blocks (43) are symmetrically distributed on both sides of the fixed block (42); A slide rod (44), the slide rod (44) is fixedly connected in the side groove (41), and the slider (43) is horizontally slidably sleeved on the slide rod (44); An I-shaped column (45), the I-shaped column (45) is fixedly connected to the fixed block (42) and the sliding block (43) respectively; The traction plates (46) are rotatably sleeved on the I-shaped columns (45), and adjacent traction plates (46) are arranged in a cross-type manner.

3. A graphite electrode production baking device according to claim 2, characterized in that: The sliding assembly further comprises: Connecting ears (47), the connecting ears (47) arranged in pairs are fixedly connected to the vertical inner wall of the roasting box (1); a screw rod (48) rotatably connected to opposite side walls of the two connecting ears (47); A sleeve block (49), the sleeve block (49) is threadedly connected to the screw rod (48), and the sleeve block (49) is fixedly connected to one of the I-beams (45); Side groove 2 (491), side groove 2 (491) is provided on the inner side wall of the roasting box (1), and the sleeve block (49) and the side groove 2 (491) are horizontally slidably connected; A screw block (492) is fixedly connected to one end of the screw rod (48) extending to the opposite side of the two connecting ears (47).

4. A graphite electrode production baking device according to claim 3, characterized in that: A protective cover (6) is provided on the vertical outer side wall of the roasting box (1), and a pair of disassembly plates (61) are fixedly connected to the protective cover (6). The disassembly plates (61) and the roasting box (1) are threadedly connected by the same bolt (62).

5. A graphite electrode production baking device according to claim 4, characterized in that: A screw groove (63) for facilitating the installation of the bolt 1 (62) is provided on the vertical outer side wall of the roasting box (1).

6. A graphite electrode production baking device according to claim 5, characterized in that: The rotating assembly comprises: The second connecting ears (51) are arranged in pairs and are fixedly connected to the vertical outer side wall of the roasting box (1); A cross column (52) is rotatably connected to the two opposite side walls of the second connecting ears (51); Motor 1 (53), Motor 1 (53) is fixedly connected to the connecting ear 2 (51), and Motor 1 (53) is used to drive the cross column (52) to rotate; An L-shaped plate (54) is arranged outside the roasting box (1), and the L-shaped plate (54) is rotatably sleeved on the rotating roller (3).

7. A graphite electrode production baking device according to claim 6, characterized in that: The rotating assembly further includes: A rotating block (55) is embedded in and rotatably connected to the L-shaped plate (54), and the cross column (52) horizontally slides through the rotating block (55); Bevel gear one (56), bevel gear one (56) is fixedly sleeved on the cross column (52), and bevel gear one (56) is fixedly connected to the rotating block (55); Bevel gear 2 (57), bevel gear 2 (57) is fixedly sleeved on one end of the rotating roller (3), and bevel gear 2 (57) is meshed with bevel gear 1 (56).

8. A graphite electrode production baking device according to claim 7, characterized in that: The scraping assembly comprises: Vertical rods (7), a plurality of vertical rods (7) are arranged in the roasting box (1) corresponding to the rotating rollers (3); A telescopic rod (71), the telescopic rod (71) is fixedly connected to opposite side walls of two adjacent vertical rods (7); A screw rod (72), the screw rod (72) is rotatably connected to the inner wall of the roasting box (1), and one of the vertical rods (7) is threadedly connected to the screw rod (72); Motor 2 (73), Motor 2 (73) is fixedly connected to the roasting box (1), and Motor 2 (73) is used to drive the screw rod (72) to rotate.

9. A graphite electrode production baking device according to claim 8, characterized in that: The scraping assembly also includes: A transmission plate (74), the transmission plate (74) is arranged at the bottom of the vertical rod (7), and the bottom end of the transmission plate (74) is fixedly connected to one of the arc-shaped scrapers (76); Bolt 2 (75), the same bolt 2 (75) is threadedly connected to the vertical rod (7) and the transmission plate (74), and a matching nut 1 is threadedly connected to the bolt 2 (75); A convex plate (77), the convex plate (77) is fixedly connected to the bottom of the arc-shaped scraper (76); Bolt three (78), the same bolt three (78) is threadedly connected to the two convex plates (77), and a matching nut two is threadedly connected to the bolt three (78).

10. A method for producing graphite electrodes using the graphite electrode production roasting device according to claim 9, characterized in that: The method comprises the following steps: Step S1, adjusting the spacing between the rollers (3) by a sliding assembly to accommodate graphite electrodes of different thicknesses; The screw block (492) is rotated to rotate the screw rod (48) on the connecting ear (47), and the sleeve block (49) slides along the side groove (491), driving the I-beam (45) to move. The sliding blocks (43) on both sides of the fixed block (42) are linked by the cross-arranged traction plates (46) to slide synchronously along the sliding rod (44) in the side groove (41), and the connecting plate (4) moves horizontally accordingly, completing the adjustment of the spacing between adjacent rollers (3); Step S2, placing the graphite electrode on the rotating roller (3), closing the calcination box (1) for calcination, rolling the graphite electrode for uniform calcination, and starting the rotating assembly; The motor 1 (53) drives the cross column (52) on the connecting ear 2 (51) to rotate, and the bevel gear 1 (56) engages with the bevel gear 2 (57), thereby driving the roller (3) to rotate on the L-shaped plate (54) and the connecting plate (4), so that the electrode rolls and is heated evenly; Step S3, during or after roasting, starting a scraping assembly to clean the roller (3) of residues; The second motor (73) drives the screw rod (72) to rotate, driving the vertical rod (7) to move, and the telescopic rod (71) adapts to the change in spacing. The arc-shaped scraper (76) is close to the roller (3). The scraper (76) fixed by the transmission plate (74) and the second bolt (75) cooperates with the paired scrapers connected by the convex plate (77) and the third bolt (78) to scrape off the residue synchronously, and the screen plate (2) receives the dropped objects.

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