Roller kiln burner for negative electrode material carbonization

Abstract

The utility model discloses a roller kiln burner for cathode material carbonization, which belongs to the technical field of burners and comprises an outer cylinder and an inner cylinder coaxially fixed in the outer cylinder, an interlayer space is formed between the outer cylinder and the inner cylinder, the outer cylinder is fixed on the side wall of a combustion chamber in a penetrating manner, and a sealing structure is formed between the outer end of the outer cylinder and the inner cylinder. The inner end of the outer barrel is located in the combustion chamber and fixedly provided with an air distributor, the inner end of the inner barrel is fixedly provided with an ejector, and the air distributor is arranged on the inner barrel located on the outer side of the ejector in a sleeving mode. By arranging the adjusting air plate and the driving device, when it is judged that the proportion of fuel and air of the burner needs to be adjusted according to the color of flames, the adjusting air plate is driven by the driving device to rotate, the adjusting air plate rotates relative to the air distributor, and the opening degree of the air distributor becomes larger or smaller; therefore, the purpose of adjusting the amount of air blown out of the air distributor is achieved. And whether the color of the flame is normal or not can be observed in real time.

Description

Technical Field

[0001] The utility model relates to a burner, in particular to a roller kiln burner for carbonizing negative electrode materials. Background Art

[0002] A roller hearth kiln is a continuous firing kiln, a tunnel kiln that uses rotating rollers to transport the green body. The negative electrode material is placed in a crucible and placed on a series of closely spaced horizontal refractory rollers. The rotation of the rollers transports the crucible from the kiln head to the kiln tail. The rollers in the low-temperature zone are made of heat-resistant nickel-chromium alloy steel, while those in the high-temperature zone are made of high-temperature resistant ceramic rollers (such as corundum or silicon carbide). The rollers can be up to 2.5 meters long and 25-27 mm in diameter. They must be straight, round, and accurately dimensioned.

[0003] The roller kiln's combustion chamber is located beneath the rollers. Compressed air atomizes fuels such as heavy oil, diesel, kerosene, and natural gas for combustion. Some kilns also use gas produced by a gasifier. Refractory material separates the combustion chamber from the rollers, preventing the flames from directly contacting the product being fired. A roller kiln equipped with a gasifier offers lower costs than fuels such as heavy oil and diesel, higher efficiency than direct coal combustion, and meets environmental standards. When using heavy oil as fuel, a flame muffle or semi-flame muffle is used to prevent flue gas contamination of the product.

[0004] The burner of an existing roller kiln needs to adjust the ratio of fuel to air during combustion. This is generally achieved by adjusting the baffle on the air duct that delivers air to the burner from the fan. When the baffle is located completely vertically in the air duct, the air duct is completely closed, and when the baffle is parallel to the air duct, the air duct is fully open. Therefore, the air supply volume of the air duct can be adjusted by adjusting the angle between the baffle and the air duct. However, this method of adjusting the air supply volume is not precise enough. Changes in the angle of the baffle will have a significant impact on the change in the air supply volume. Even a small adjustment of the baffle angle may lead to a significant change in the air supply volume, resulting in low operability and difficulty in operation. Utility Model Content

[0005] The purpose of the utility model is to provide a roller kiln burner for carbonizing negative electrode materials, which has the advantage of being easy to adjust the ratio of fuel and air in the burner, and effectively solves the problem that it is difficult to adjust the ratio of fuel and air in reality.

[0006] The utility model discloses a following technical scheme: a kind of carbonization roll kiln burner for negative electrode material, including outer tube and coaxially fixed inner tube in outer tube, interlayer space is formed between outer tube and inner tube, outer tube is arranged on the side wall of combustion chamber, the outer end of outer tube and inner tube form sealing structure, the inner end of outer tube is located in combustion chamber and is fixedly provided with air distributor, the inner end of inner tube is fixedly provided with injector, air distributor is sleeved on the inner tube located on the outer side of injector;The outer end side wall of outer tube located outside combustion chamber is provided with air pipe, and the interlayer space between air pipe and outer tube and inner tube is communicated, the outer end of inner tube protrudes from the outer end of outer tube and is provided with connecting head, and the internal space of connecting head and inner tube is communicated;The outer side of air distributor is rotatably connected with adjusting air baffle, and adjusting air baffle is sleeved with inner tube;The outer end of outer tube is provided with driving device, and the output end of driving device is fixedly provided with the outer side of adjusting air baffle;Driving device is used to drive adjusting air baffle to rotate.

[0007] Further, the air distributor includes a fixed ring fixed to the inner end of the outer tube by bolts, one end of the fixed ring extending into the outer tube is fixedly provided with an air distribution disc, the air distribution disc is sleeved on the inner tube, a plurality of air distribution holes are uniformly arranged on the air distribution disc in the circumferential direction, the direction of the air distribution holes forms a set angle with the axis of the inner tube, and the side of the air distribution disc away from the fixed ring is rotatably connected with the adjusting air baffle.

[0008] Further, the driving device includes a transmission rod eccentrically fixed to the side of the adjusting air baffle away from the air distribution disc, the outer end of the transmission rod extends to the outside of the outer end of the outer tube, the driving device further includes a driving mechanism provided at the outer end of the transmission rod, and the driving mechanism drives the transmission rod to rotate around the axis of the inner tube.

[0009] Further, the driving mechanism includes a gear rotatably connected with the transmission rod and an incomplete gear ring fixedly provided at the inner bottom wall of the outer tube, the center of the incomplete gear ring is located on the axis of the inner tube, and the gear is engaged with the incomplete gear ring.

[0010] Further, a locking nut is threadedly connected to the transmission rod outside the butterfly-shaped sleeve.

[0011] Further, the sealing plate is located in an arc-shaped sliding cavity formed in the inner side wall of the arc-shaped through slot, and the center of the arc-shaped sliding cavity is located on the axis of the inner tube.

[0012] Furthermore, a accommodating groove is provided on a side of the regulating air plate close to the air distribution disk, and a protrusion is fixedly provided on a side of the air distribution disk close to the regulating air plate. The protrusion of the air distribution disk is inserted into the accommodating groove of the regulating air plate and is rotatably connected to the regulating air plate.

[0013] Furthermore, the injector includes a column fixedly arranged on the inner end of the inner tube, and an injection head fixedly arranged on the column, an atomization chamber is provided in the injection head, an inner hole connected to the atomization chamber is provided on the end surface of the column, and an injection hole connected to the atomization chamber is provided on the outer surface of the injection head.

[0014] Furthermore, a mounting plate is fixedly provided on the outer surface of the outer cylinder, and the mounting plate is fixed to the side wall of the combustion chamber by bolts.

[0015] Furthermore, an indicator needle is provided on the outer end surface of the transmission rod, and scale values ​​are provided at positions on the outer end surface of the outer cylinder corresponding to the arc-shaped through groove.

[0016] 1. The utility model provides an air regulating plate and a driving device. When it is determined that the ratio of fuel and air in the burner needs to be adjusted according to the color of the flame, the driving device drives the air regulating plate to rotate. The air regulating plate rotates relative to the air distributor, causing the opening of the air distributor to increase or decrease, thereby achieving the purpose of adjusting the amount of air blown out from the air distributor. The adjustment can be made according to the color of the flame, and the flame color can be observed in real time to see if it is normal.

[0017] 2. The utility model is provided with a transmission rod, a gear, an incomplete gear, a butterfly sleeve and a shaft sleeve. When in use, the shaft sleeve is driven to rotate by rotating the butterfly sleeve, and the shaft sleeve drives the gear to move. The gear is engaged with the incomplete gear ring, and the gear rotates and moves along the outer arc line of the incomplete gear ring, so that the gear rotates and rotates around the axis of the inner tube at the same time. The rotation of the gear around the axis of the inner tube drives the transmission rod to rotate around the axis of the inner tube, and the transmission rod then drives the adjusting air plate to rotate relative to the air distribution disk, thereby achieving the purpose of adjusting the ratio of fuel and air. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a front view structural diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the combustion chamber in the present utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the burner and combustion chamber assembly in the utility model;

[0022] Figure 5This is a schematic diagram of the three-dimensional structure of the mounting plate in the present utility model;

[0023] Figure 6 For the utility model Figure 5 A schematic diagram of the structure enlargement at point A;

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the outer cylinder in the present utility model;

[0025] Figure 8 This is a schematic diagram of the three-dimensional structure inside the outer cylinder of the present invention;

[0026] Figure 9 This is a schematic diagram of the internal three-dimensional structure of the mounting plate in the present invention;

[0027] Figure 10 For the utility model Figure 9 A magnified schematic diagram of the structure at point B in FIG;

[0028] Figure 11 This is a schematic diagram of the three-dimensional structure of the locking nut in the present utility model;

[0029] Figure 12 This is a schematic diagram of the three-dimensional structure of the sealing plate in the present utility model;

[0030] Figure 13 This is a three-dimensional structural diagram of the outer cylinder, the regulating air plate and the air distribution disk in the present invention in a separated state;

[0031] Figure 14 This is a three-dimensional structural diagram of the inner cylinder, the regulating air plate and the air distribution disk in the present invention in a separated state;

[0032] Figure 15 This is a three-dimensional structural diagram of the air regulating plate and the air distribution plate in the present invention in a separated state;

[0033] Figure 16 This is a schematic diagram of the three-dimensional structure of the air regulating plate in the present utility model;

[0034] Figure 17 This is a schematic diagram of the three-dimensional structure inside the inner cylinder of the utility model.

[0035] In the figure, 1, vault; 2, conveying device; 3, combustion chamber; 4, support column; 5, burner; 6, outer cylinder; 7, inner cylinder; 8, air distributor; 9, injector; 10, air pipe; 11, connecting head; 12, adjusting air plate; 13, fixing ring; 14, air distribution disc; 15, air distribution hole; 16, adjusting hole; 17, transmission rod; 18, arc-shaped through slot; 19, sealing plate; 20, gear; 21, incomplete gear ring; 22, shaft sleeve; 23, butterfly sleeve; 24, locking nut; 25, arc-shaped sliding cavity; 26, accommodating groove; 27, protruding part; 28, column body; 29, injection head; 30, injection hole; 31, mounting plate; 32, indicating needle; 33, scale value. DETAILED DESCRIPTION

[0036] Please refer to Figure 1-17 The utility model will be described in detail below in combination with the drawings and examples:

[0037] The existing roller kiln generally comprises a vault 1, a conveying device 2 and a combustion chamber 3 located below the conveying device 2, the upper end face of the combustion chamber 3 is fixedly connected with the vault 1 through a support column 4, and a burner 5 is arranged on the inner side wall of the combustion chamber 3; during normal use, the negative electrode material is placed in a crucible, the crucible is placed on the conveying device 2, the crucible slowly enters the inside of the vault 1, the burner 5 burns in the combustion chamber 3 to generate a flame to heat the crucible above the conveying device 2 and the negative electrode material in the crucible, so as to realize carbonization of the negative electrode material.

[0038] The angular orientation words of the following embodiments are based on the directions inside the combustion chamber 3 and outside the combustion chamber 3. The roller kiln burner for carbonizing negative electrode materials described in the present invention includes an outer tube 6 and an inner tube 7 coaxially fixed inside the outer tube 6, and a sandwich space is formed between the outer tube 6 and the inner tube 7. The outer tube 6 is passed through and fixed on the side wall of the combustion chamber 3, and a sealing structure is formed between the outer end of the outer tube 6 and the inner tube 7. The inner end of the outer tube 6 is located in the combustion chamber 3 and is fixedly provided with a blower 8. The inner end of the inner tube 7 is fixedly provided with an injector 9, and the blower 8 is sleeved on the inner tube 7 located outside the injector 9; an air duct 10 is provided on the outer end side wall of the outer tube 6 located outside the combustion chamber 3, and the air duct 10 is connected to the sandwich space between the outer tube 6 and the inner tube 7. The outer end of the inner tube 7 protrudes from the outer end of the outer tube 6 and is provided with a connector. 11. The connector 11 is connected to the internal space of the inner tube 7; when in use, the air duct 10 is connected to the output end of the blower, and the connector 11 is connected to the fuel hose. The fuel is discharged into the fuel hose through the fuel pump and then enters the interior of the inner tube 7. The fuel is transported from the outer end of the inner tube 7 to the inner end of the inner tube 7 and is ejected from the injector 9; at the same time, the blower transports air into the interlayer space between the outer tube 6 and the inner tube 7 through the air duct 10. The air in the interlayer space flows to the inner end and is blown out from the air distributor 8, which just blows the fuel ejected from the injector 9 into atomization and sends it into the combustion chamber 3 for combustion. The air distributor 8 has two functions. The first function is to blow away the fuel ejected from the injector 9, so that the fuel is atomized, which can better mix the fuel and air; the second function is to provide sufficient air for the combustion of the fuel to ensure sufficient combustion.

[0039] The above scheme can ensure continuous combustion by continuously supplying fuel and air. As for the problem of initial ignition, it is the existing technology. Generally, ignition electrodes are used for ignition. Ignition can also be performed externally. The operation method is to pull out the outer tube 6, and then start supplying fuel and air. Use the ignition device to ignite the fuel sprayed from the inner tube 7. A continuous flame is formed at the inner end of the outer tube 6. Then the outer tube 6 can be inserted from the side wall of the combustion chamber 3, and the outer tube 6 and the combustion chamber 3 are fixed by bolts.

[0040] In existing technologies, the ratio of fuel to air needs to be adjusted. The basis for adjustment is to observe the color of the flame. A bright yellow flame indicates that the ratio of fuel to air is appropriate; a darker flame indicates insufficient air and incomplete fuel combustion; a lighter flame indicates more air, resulting in heat loss.

[0041] In order to solve the problem of adjusting the ratio of fuel and air, in this embodiment, the outer side surface of the air distributor 8 is rotatably connected to the adjusting air plate 12, and the adjusting air plate 12 is nested with the inner tube 7; the outer end of the outer tube 6 is provided with a driving device, and the output end of the driving device is fixed to the outer side surface of the adjusting air plate 12; the driving device is used to drive the adjusting air plate 12 to rotate, and the adjusting air plate 12 rotates relative to the air distributor 8, so that the opening of the air distributor 8 becomes larger or smaller, thereby achieving the purpose of adjusting the amount of air blown out from the air distributor 8; it can be adjusted according to the color of the flame, and the color of the flame can be observed in real time to see whether it is normal.

[0042] In this embodiment, the air distributor 8 includes a fixing ring 13 fixed to the inner end of the outer tube 6 by bolts, and an air distribution plate 14 is fixedly provided at one end of the fixing ring 13 extending into the outer tube 6. The air distribution plate 14 is sleeved on the inner tube 7, and a number of air distribution holes 15 are evenly arranged on the air distribution plate 14 along the circumferential direction. The direction of the air distribution holes 15 forms a set angle with the axis of the inner tube 7, so that the air in the interlayer space rotates when it is blown out from the air distribution holes 15. The side of the air distribution plate 14 away from the fixing ring 13 is rotatably connected to the adjusting plate 12; the adjusting plate 12 is sleeved on the inner tube 7, and a number of air distribution holes 15 are evenly arranged on the air distribution plate 12 along the circumference. Corresponding adjustment holes 16; when in use, when it is necessary to adjust the ratio of fuel and air, the adjusting air plate 12 is driven to rotate relative to the air distribution disk 14 by the driving device. When the adjusting holes 16 of the adjusting air plate 12 and the air distribution holes 15 of the air distribution disk 14 completely coincide with each other, it means that the amount of air provided for combustion is the largest. When the adjusting holes 16 of the adjusting air plate 12 and the air distribution holes 15 of the air distribution disk 14 are misaligned, it means that the amount of air provided for combustion is less than the maximum value. The greater the degree of misalignment between the adjusting holes 16 of the adjusting air plate 12 and the air distribution holes 15 of the air distribution disk 14, the smaller the amount of air provided for combustion. When adjusting, adjust according to the color of the flame in the combustion chamber 3.

[0043] In order to achieve the purpose of driving the air regulating plate 12 to rotate, in this embodiment, the driving device includes a transmission rod 17 eccentrically fixedly arranged on the side of the air regulating plate 12 away from the air distribution plate 14, and the outer end of the transmission rod 17 extends to the outside of the outer end of the outer tube 6. The driving device also includes a driving mechanism arranged at the outer end of the transmission rod 17, and the driving mechanism drives the transmission rod 17 to rotate around the axis of the inner tube 7, thereby causing the transmission rod 17 to drive the air regulating plate 12 to rotate relative to the air distribution plate 14, thereby achieving the purpose of adjusting the ratio of fuel and air; the junction between the outer end surface of the outer tube 6 and the transmission rod 17 is opened. An arcuate through groove 18 is provided, the center of which is located on the axis of the inner cylinder 7. When the transmission rod 17 rotates around the inner cylinder 7 under the drive of the driving mechanism, the transmission rod 17 moves in the arcuate through groove 18. A sealing plate 19 is provided near the outer end of the transmission rod 17 and the outer cylinder 6 to prevent the interlayer space from communicating with the outside through the arcuate through groove 18. When the transmission rod 17 moves in the arcuate through groove 18, the sealing plate 19 moves with the transmission rod 17. The sealing plate 19 always keeps the arcuate through groove 18 sealed to prevent the interlayer space between the outer cylinder 6 and the inner cylinder 7 from communicating with the outside.

[0044] In this embodiment, the driving mechanism includes a gear 20 rotatably connected to the transmission rod 17, and an incomplete gear ring 21 fixed to the inner bottom wall of the outer cylinder 6. The center of the incomplete gear ring 21 is located on the axis of the inner cylinder 7, and the gear 20 is meshed with the incomplete gear ring 21; a shaft sleeve 22 is coaxially fixedly provided on a side of the gear 20 close to the sealing plate 19, and the outer end of the shaft sleeve 22 extends to the outer side of the sealing plate 19 through the arc-shaped through groove 18 and is fixedly provided with a butterfly sleeve 23. The butterfly sleeve 23 and the shaft sleeve 22 are both rotatably connected to the transmission rod 17, and the shaft sleeve 22 is rotatably connected to the sealing plate 19; when in use, the shaft sleeve 22 is fixed to the inner bottom wall of the outer cylinder 6. By rotating the butterfly sleeve 23, the shaft sleeve 22 is driven to rotate, and the shaft sleeve 22 drives the gear 20 to rotate. The gear 20 is engaged with the incomplete ring gear 21. The gear 20 rotates and moves along the outer arc of the incomplete ring gear 21, so that the gear 20 rotates while rotating around the axis of the inner cylinder 7. The rotation of the gear 20 around the axis of the inner cylinder 7 drives the transmission rod 17 to rotate around the axis of the inner cylinder 7. The transmission rod 17 then drives the adjusting air plate 12 to rotate relative to the air distribution disk 14. The degree of misalignment between the adjusting hole 16 of the adjusting air plate 12 and the air distribution hole 15 of the air distribution disk 14 changes, thereby achieving the purpose of adjusting the ratio of fuel and air.

[0045] In this embodiment, a locking nut 24 is threadedly connected to the transmission rod 17 located outside the butterfly sleeve 23. When the locking nut 24 is tightened, the locking nut 24 interferes with the butterfly sleeve 23 to prevent the butterfly sleeve 23 from rotating during use.

[0046] In this embodiment, the sealing plate 19 is located in the arc-shaped sliding cavity 25 opened on the inner wall of the arc-shaped groove 18. The center of the arc-shaped sliding cavity 25 is located on the axis of the inner cylinder 7. When the transmission rod 17 moves in the arc-shaped groove 18, the transmission rod 17 drives the sealing plate 19 to move in the arc-shaped sliding cavity 25. The sealing plate 19 always forms a sealing state for the arc-shaped groove 18, preventing the interlayer space formed by the outer cylinder 6 and the inner cylinder 7 from communicating with the outside through the arc-shaped groove 18, thereby preventing the wind transported by the fan from leaking to the outside through the arc-shaped groove 18.

[0047] In this embodiment, a accommodating groove 26 is provided on a side of the regulating air plate 12 close to the air distribution plate 14, and a protrusion 27 is fixedly provided on a side of the air distribution plate 14 close to the regulating air plate 12. The protrusion 27 of the air distribution plate 14 is inserted into the accommodating groove 26 of the regulating air plate 12 and is rotatably connected to the regulating air plate 12.

[0048] In this embodiment, the injector 9 includes a column 28 fixed to the inner end of the inner tube 7, and an injection head 29 fixed to the column 28. An atomization chamber is provided in the injection head 29, and an inner hole connected to the atomization chamber is provided on the end face of the column 28. An injection hole 30 connected to the atomization chamber is provided on the outer surface of the injection head 29. The fuel pump pumps the fuel into the fuel hose and then into the interior of the inner tube 7. The fuel is transported from the outer end of the inner tube 7 to the inner end of the inner tube 7 and enters the atomization chamber of the injection head 29 from the inner hole of the column 28, and then is ejected from the injection hole 30 of the injection head 29, thereby achieving the purpose of injecting fuel into the combustion chamber 3.

[0049] In this embodiment, a mounting plate 31 is fixedly provided on the outer surface of the outer cylinder 6 , and the mounting plate 31 is fixed to the side wall of the combustion chamber 3 by bolts.

[0050] In this embodiment, an indicator needle 32 is provided on the outer end surface of the transmission rod 17, and a scale value 33 is provided at the position corresponding to the outer end surface of the outer tube 6 and the arc-shaped groove 18. When the transmission rod 17 moves in the arc-shaped groove 18, the distance moved by the transmission rod 17 can be confirmed by the cooperation between the indicator needle 32 and the scale value 33, which is convenient for adjusting the fuel-air ratio.

[0051] The working principle of the present invention is as follows: when in use, the fuel is pumped into the fuel hose through the fuel pump, and then enters the interior of the inner tube 7. The fuel is transported from the outer end of the inner tube 7 to the inner end of the inner tube 7 and is ejected from the injection hole 30 of the injection head 29. At the same time, the fan transports air into the interlayer space between the outer tube 6 and the inner tube 7 through the air duct 10. The air in the interlayer space flows to the inner end and is blown out through the adjustment hole 16 of the air regulating plate 12 and the air distribution hole 15 of the air distribution plate 14, just to blow the fuel sprayed from the injector 9 into the combustion chamber 3 for combustion. According to the observed flame color, the fuel is sprayed into the combustion chamber 3 by the air distribution plate 14. The rotating butterfly sleeve 23 can adjust the amount of air provided for combustion so that the flame color is normal, that is, bright yellow; the specific operation is that the rotating butterfly sleeve 23 drives the shaft sleeve 22 and the gear 20 to rotate in turn, and the gear 20 rotates and moves along the arc of the incomplete gear ring 21. The gear 20 moves along the arc of the incomplete gear ring 21 to drive the transmission rod 17 to rotate around the axis of the inner tube 7, and then drives the adjusting air plate 12 to rotate relative to the air distribution disk 14 to change the opening of the air distribution hole 15 of the air distribution disk 14, thereby adjusting the amount of air provided for combustion until the color of the flame is bright yellow.

Claims

1. A roller kiln burner for carbonizing negative electrode materials, comprising an outer cylinder (6) and an inner cylinder (7) coaxially fixed inside the outer cylinder (6), characterized in that: An interlayer space is formed between the outer tube (6) and the inner tube (7). The outer tube (6) is fixed on the side wall of the combustion chamber (3). A sealing structure is formed between the outer end of the outer tube (6) and the inner tube (7). The inner end of the outer tube (6) is located in the combustion chamber (3) and is fixedly provided with an air distributor (8). The inner end of the inner tube (7) is fixedly provided with an ejector (9). The air distributor (8) is sleeved on the inner tube (7) located outside the ejector (9). An air duct (10) is provided on the side wall of the outer end of the outer tube (6) located outside the combustion chamber (3). The air duct (10) ) is communicated with the interlayer space between the outer tube (6) and the inner tube (7); the outer end of the inner tube (7) protrudes from the outer end of the outer tube (6) and is provided with a connector (11); the connector (11) is communicated with the internal space of the inner tube (7); the outer side surface of the air distributor (8) is rotatably connected to the regulating air plate (12), and the regulating air plate (12) is nested with the inner tube (7); the outer end of the outer tube (6) is provided with a driving device, and the output end of the driving device is fixedly provided with the outer side surface of the regulating air plate (12); the driving device is used to drive the regulating air plate (12) to rotate.

2. The roller kiln burner for carbonizing negative electrode materials according to claim 1, characterized in that: The air distributor (8) includes a fixing ring (13) fixed to the inner end of the outer tube (6) by bolts, and an air distribution plate (14) is fixedly provided at one end of the fixing ring (13) extending into the outer tube (6), and the air distribution plate (14) is sleeved on the inner tube (7), and a plurality of air distribution holes (15) are evenly arranged on the air distribution plate (14) along the circumferential direction, and the direction of the air distribution holes (15) forms a set angle with the axis of the inner tube (7), and the side of the air distribution plate (14) away from the fixing ring (13) is rotatably connected to the regulating air plate (12); the regulating air plate (12) is sleeved on the inner tube (7), and a plurality of regulating holes (16) corresponding to the air distribution holes (15) are evenly arranged on the air distribution plate (12) along the circumference.

3. The roller kiln burner for carbonizing negative electrode materials according to claim 2, characterized in that: The driving device includes a transmission rod (17) eccentrically fixedly arranged on a side of the regulating air plate (12) away from the air distribution disk (14), the outer end of the transmission rod (17) extending to the outside of the outer end of the outer cylinder (6), and the driving device also includes a driving mechanism arranged at the outer end of the transmission rod (17), the driving mechanism driving the transmission rod (17) to rotate around the axis of the inner cylinder (7); an arc-shaped through groove (18) is provided at the junction of the outer end surface of the outer cylinder (6) and the transmission rod (17), the center of the arc-shaped through groove (18) is located on the axis of the inner cylinder (7), and a sealing plate (19) is provided at a position close to the outer end of the transmission rod (17) and the outer cylinder (6) for preventing the interlayer space from communicating with the outside through the arc-shaped through groove (18).

4. The roller kiln burner for carbonizing negative electrode materials according to claim 3, characterized in that: The driving mechanism comprises a gear (20) rotatably connected to the transmission rod (17), and an incomplete gear ring (21) fixedly arranged on the inner bottom wall of the outer cylinder (6), the center of the incomplete gear ring (21) is located on the axis of the inner cylinder (7), and the gear (20) is meshed with the incomplete gear ring (21); a shaft sleeve (22) is coaxially fixedly arranged on a side of the gear (20) close to the sealing plate (19), the outer end of the shaft sleeve (22) extends to the outer side of the sealing plate (19) through the arc-shaped through groove (18) and is fixedly provided with a butterfly sleeve (23), the butterfly sleeve (23) and the shaft sleeve (22) are both rotatably connected to the transmission rod (17), and the shaft sleeve (22) is rotatably connected to the sealing plate (19).

5. The roller kiln burner for carbonizing negative electrode materials according to claim 4, characterized in that: A locking nut (24) is threadedly connected to the transmission rod (17) located outside the butterfly sleeve (23).

6. The roller kiln burner for carbonizing negative electrode materials according to claim 3, characterized in that: The sealing plate (19) is located in an arc-shaped sliding cavity (25) formed on the inner wall of the arc-shaped through groove (18), and the center of the arc-shaped sliding cavity (25) is located on the axis of the inner cylinder (7).

7. The roller kiln burner for carbonizing negative electrode materials according to claim 2, characterized in that: A receiving groove (26) is provided on a side of the regulating air plate (12) adjacent to the air distribution plate (14), and a protrusion (27) is fixedly provided on a side of the air distribution plate (14) adjacent to the regulating air plate (12). The protrusion (27) of the air distribution plate (14) is inserted into the receiving groove (26) of the regulating air plate (12) and is rotatably connected to the regulating air plate (12).

8. The roller kiln burner for carbonizing negative electrode materials according to claim 1, characterized in that: The injector (9) comprises a column (28) fixedly arranged on the inner end of the inner tube (7), and an injection head (29) fixedly arranged on the column (28), an atomization chamber is provided in the injection head (29), an inner hole communicating with the atomization chamber is provided on the end surface of the column (28), and an injection hole (30) communicating with the atomization chamber is provided on the outer surface of the injection head (29).

9. The roller kiln burner for carbonizing negative electrode materials according to claim 1, characterized in that: A mounting plate (31) is fixedly provided on the outer surface of the outer cylinder (6), and the mounting plate (31) is fixed to the side wall of the combustion chamber (3) by bolts.

10. The roller kiln burner for carbonizing negative electrode materials according to claim 3, characterized in that: The outer end surface of the transmission rod (17) is provided with an indicator needle (32), and the outer end surface of the outer cylinder (6) is provided with a scale value (33) at a position corresponding to the arc-shaped through groove (18).

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