Device for supplying power to two graphitization furnaces by one set of transformation and rectification power supply equipment

Abstract

The invention belongs to the technical field of power supply devices, particularly relates to a device for supplying power to two graphitization furnaces by one set of transformation and rectification power supply equipment, and aims to solve the problems of high equipment investment, low production efficiency and equipment utilization rate, high capacity cost and high operation cost due to the fact that the existing power supply equipment can only supply power to one series graphitization furnace independently. According to the scheme, the device comprises a graphitization plant and a plurality of graphitization furnaces located in the graphitization plant, the two ends of each graphitization furnace are provided with a furnace end conductive positive electrode and a furnace end conductive negative electrode respectively, and one side of the graphitization plant is provided with a rectification chamber. Through cooperation of the conductive copper plate, the furnace end conductive negative electrode, the furnace end conductive positive electrode and the voltage transformation rectifying device, electric energy can be provided for the two graphitization furnaces at the same time and can also be alternately provided for the two graphitization furnaces, a set of power supply equipment is omitted, the equipment investment and the equipment operation cost are reduced, and the production efficiency and the equipment utilization rate are improved.

Description

Technical Field

[0001] The invention relates to the technical field of power supply devices, and in particular to a device in which a set of transformer-rectifier power supply equipment is used to supply power to two graphitizing furnaces. Background Art

[0002] In the process of graphitizing electrode products in the carbon production industry using series-connected graphitization furnaces, a group of graphitization furnaces (a total of 14-20 furnaces) is equipped with a set of transformer and rectifier power supply equipment to supply power to each furnace individually, raising and lowering the load from low to high according to the load curve. When the curve is completed, the power is cut off and then switched to supply power to another graphitization furnace. Each furnace is powered for 24 hours.

[0003] The transformer and rectifier power supply equipment in the prior art still has some defects in the process of supplying power to the series graphitization furnace:

[0004] 1. A set of transformer and rectifier power supply equipment can only supply power to one series-connected graphitization furnace, resulting in large equipment investment, low production efficiency and equipment utilization, high capacity cost and high operating cost;

[0005] 2. During the long-term use of the serial graphitization furnace, it is necessary to regularly inspect and maintain it. In the prior art, the inspection and maintenance of the serial graphitization furnace is extremely inconvenient, which affects the inspection and maintenance efficiency;

[0006] 3. During the maintenance of the series-connected graphitization furnace, a large amount of dust accumulates on the surface of the series-connected graphitization furnace, which not only affects the staff's accurate maintenance, but also affects the heat dissipation of the conductive electrode of the furnace head of the series-connected graphitization furnace.

[0007] In view of the above problems, the present invention document proposes a set of transformer and rectifier power supply equipment to supply power to two graphitization furnaces in a one-to-two manner. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings of the prior art that the power supply equipment can only supply power to one series-connected graphitization furnace, which is extremely inconvenient to maintain and a large amount of dust accumulates on its surface, affecting the maintenance work, and proposes a set of transformer and rectifier power supply equipment to supply power to two graphitization furnaces.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] A set of transformer-rectifier power supply equipment is a device for supplying power to two graphitization furnaces in a one-to-two manner, including a graphitization plant and a plurality of graphitization furnaces located in the graphitization plant. Both ends of the graphitization furnaces are provided with furnace head conductive positive electrodes and furnace head conductive negative electrodes, respectively. A rectifier room is provided on one side of the graphitization plant. A transformer-rectifier device and a hydraulic station are provided in the rectifier room. Two negative power supply busbars and two positive power supply busbars are installed in the graphitization plant through cement jacking piers. The negative power supply busbar and the positive power supply busbar are connected to the transformer-rectifier device.

[0011] It also includes a connecting component for connecting the negative power supply busbar and the positive power supply busbar with the furnace head conductive negative electrode and the furnace head conductive positive electrode.

[0012] In a possible design, the connecting component includes four conductive moving vehicles, two third double-axis hydraulic cylinders are fixedly installed on the top of the conductive moving vehicles, and both output shafts of the two third double-axis hydraulic cylinders are fixedly installed with conductive copper plates through insulating plates, and soft busbars are installed between the two conductive copper plates.

[0013] In one possible design, the connection assembly includes a slidingly connected mobile frame in the graphitization plant for energizing the graphitization furnace;

[0014] The mobile frame is composed of a first vertical frame and two second vertical frames, and the two second vertical frames are located on both sides of the first vertical frame, and the graphitization furnace is respectively located between the two second vertical frames and the first vertical frame, and the ends of the two second vertical frames close to each other are fixed with connecting rods and connecting beams, and the connecting beams are located above the connecting rods, and the ends of the two connecting rods and connecting beams close to each other are respectively fixedly connected to the two sides of the first vertical frame;

[0015] Two sliding plates, the two sliding plates are respectively slidably arranged in the two second vertical frames, and are used for inspecting and repairing the graphitization furnace;

[0016] A sliding beam, which is slidably disposed in the first vertical frame and is used for inspecting the other side of the graphitization furnace;

[0017] A fixed plate is fixedly installed on one side of the sliding plate and the sliding beam, two second double-axis hydraulic cylinders are fixedly installed on the top of the fixed plate fixed to the sliding plate, two output shafts of the two second double-axis hydraulic cylinders are fixedly installed with conductive copper plates through insulating plates, and a soft busbar is installed between the two conductive copper plates, and two first double-axis hydraulic cylinders are fixedly installed on the top of the fixed plate fixed to the sliding beam, two output shafts of the two first double-axis hydraulic cylinders are fixedly installed with conductive copper plates through insulating plates, and a soft busbar is installed between the two conductive copper plates;

[0018] A driving structure, disposed in the first vertical frame and the second vertical frame, for driving the conductive copper plate to move so that the conductive copper plate supplies power to different graphitization furnaces;

[0019] Four groups of maintenance structures, two of which are located above the sliding plates, and the other two are located on both sides of the top of the sliding beam. The maintenance structures are used to control the lifting of the sliding plates and the sliding beams to perform maintenance on the furnace heads at both ends of different graphitization furnaces;

[0020] There are four groups of swing structures, two of which are arranged under the two sliding plates respectively, and the other two groups of swing structures are arranged under the sliding beams, and the maintenance structure provides power for the swing structures.

[0021] In a possible design, the driving structure includes two guide beams fixed to the inner wall of the top of the graphitization plant, racks are fixed on the sides of the two guide beams close to each other, driving motors are fixed to the tops of the two connecting beams through frames, and the output shafts of the driving motors are fixed with spur gears through couplings, and the spur gears are meshed with the racks. The cooperation between the spur gears and the racks can drive the connecting beams to move, and the connecting beams are slidably connected to the guide beams.

[0022] In a possible design, the inspection structure includes a first screw fixedly connected to the first vertical frame, and two second vertical frames are fixedly connected to a second screw;

[0023] The cam is an angularly-shaped gear that is fixed to the outer wall of the second gear and has a rotation axis relative to the first gear.

[0024] The cam is connected to the bottom of the sliding plate by a U-shaped frame, and the bottom of the sliding plate is rotatably connected to a rotating shaft through a base, and the rotating shaft and the rotating shaft are connected by a synchronous wheel and a synchronous belt transmission. One end of the rotating shaft extends to a turntable fixed in the U-shaped frame, and a pin is fixed on one side of the turntable at a position deviating from the center of the circle. A plurality of cross beams are fixed in the U-shaped frame, and one side of the plurality of cross beams is slidably connected to the same sliding frame, and the pin cooperates with the sliding frame for sliding, and the turntable drives the sliding frame to reciprocate through the pin. The bottom inner wall of the U-shaped frame is rotatably connected to a rotating rod, and a sliding groove is provided in the rotating rod, and a pin rod is slidably connected in the sliding groove, and the top end of the pin rod is fixedly connected to the bottom end of the sliding frame, and the sliding frame drives the rotating rod to reciprocate through the pin rod, and a connecting block is fixed on one side of the top of the rotating rod, and a blower is fixed on one end of the connecting block, and the blower is inclined to a certain extent, and is used to blow away dust on the conductive electrode of the furnace head at one end of the graphitization furnace below.

[0025] In a possible design, a first protective frame is fixed to the top of the two sliding plates to provide a safe maintenance space for maintenance personnel, and a second ladder is fixed to both sides of the two connecting rods, and the bottom end of the second ladder extends into the first protective frame, so that the staff can enter the first protective frame through the second ladder.

[0026] In a possible design, a second protective frame is fixed on both sides of the top of the sliding beam, and the second protective frame is located on both sides of the first vertical frame, so as to provide a safe maintenance space for maintenance personnel. A third ladder is fixed on both sides of the two connecting rods, and the bottom end of the third ladder extends into the second protective frame, so that the staff can enter the second protective frame through the third ladder.

[0027] In a possible design, a plurality of slide rails are fixed to the top inner wall and the bottom inner wall of the graphitization plant, and the first vertical frame and the two second vertical frames are slidably connected to the top inner wall and the bottom inner wall of the graphitization plant through the slide rails.

[0028] In a possible design, a U-shaped walking rail is fixed to the bottom of the two connecting rods, two first ladders are fixed to the bottom inner walls of the two U-shaped walking rails, and the two first ladders extend to both ends of the U-shaped walking rail respectively.

[0029] Beneficial effects:

[0030] In the present invention, the conductive copper plate can be driven to contact the furnace head conductive positive electrode and the furnace head conductive negative electrode through the second double-axis hydraulic cylinder, the first double-axis hydraulic cylinder, and the third double-axis hydraulic cylinder. The furnace head conductive positive electrode and the furnace head conductive negative electrode cooperate to supply power to the graphitization furnace, and can provide power to the two graphitization furnaces at the same time, and can also provide power to the two graphitization furnaces alternately, thereby reducing a set of power supply equipment, reducing equipment investment and equipment operation costs;

[0031] In the present invention, the nut ring is threadedly sleeved on the outer wall of the second lead screw, the outer wall of the nut ring is fixed with a first bevel gear, the output shaft of the rotating motor is fixed with a rotating shaft, the outer wall of the rotating shaft is slidably connected with a second bevel gear, and a plurality of electric push rods are fixed on one side of the motor box, and the output shafts of the plurality of electric push rods are slidably connected with the second bevel gear through a rotating ring; the meshing state of the second bevel gear and the first bevel gear can be controlled by the electric push rod, and when maintenance is required, the rotating motor drives the sliding plate and the sliding beam to rise and fall through the meshing of the second bevel gear and the first bevel gear, and the staff performs maintenance on the furnace head conductive electrodes at both ends of the graphitization furnace in the first protection frame and the second protection frame, and the maintenance is very convenient and the safety is extremely high;

[0032] In the present invention, a pin is fixed at a position deviating from the center of the circle on one side of the turntable, the U-shaped frame is slidably connected to a sliding frame, a slide groove is provided in the rotating rod, and a pin rod fixedly connected to the bottom end of the sliding frame is slidably connected in the slide groove; when the sliding plate and the sliding beam are lowered, the rotating shaft and the turntable can be driven to rotate, and the cooperation of the pin shaft, the sliding frame and the pin rod can drive the rotating rod to rotate back and forth, and the swing of the blower fan can blow away the dust on the conductive electrode of the furnace head at one end of the graphitization furnace, so that the staff can clearly observe the conductive electrode of the furnace head for maintenance, and avoid the dust from affecting the operation of the conductive electrode of the furnace head;

[0033] In the present invention, the cooperation of the conductive copper plate, the furnace head conductive negative electrode, the furnace head conductive positive electrode and the transformer rectifier device can provide electric energy for two graphitization furnaces at the same time, and can also provide electric energy for the two graphitization furnaces alternately, thereby reducing a set of power supply equipment, reducing the investment in equipment and the equipment operation cost. In addition, the graphitization furnace can be safely inspected and repaired. During the inspection and repair process, the dust on the conductive electrode of the furnace head of the graphitization furnace can be blown away, so that the staff can clearly observe the conductive electrode of the furnace head for inspection and repair, and the dust is prevented from affecting the operation of the conductive electrode of the furnace head. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the three-dimensional structure of a device for supplying power to two graphitization furnaces using a set of transformer-rectifier power supply equipment provided in Example 1 of the present invention;

[0035] Figure 2 A three-dimensional cross-sectional structural schematic diagram of a graphitization plant of a device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment provided in Example 1 of the present invention;

[0036] Figure 3 A schematic diagram of the three-dimensional structure of a device for supplying power to two graphitization furnaces using a set of transformer-rectifier power supply equipment provided in Embodiment 2 of the present invention;

[0037] Figure 4 A three-dimensional cross-sectional structural schematic diagram of a graphitization plant of a device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention;

[0038] Figure 5 A schematic diagram of a three-dimensional exploded structure of a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention, which is a device for supplying power to two graphitization furnaces with one-to-two power supplies, including a connecting beam, a guide beam and a driving motor;

[0039] Figure 6 for Figure 4 Schematic diagram from another perspective;

[0040] Figure 7 A schematic three-dimensional cross-sectional structure diagram of a sliding plate of a device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention;

[0041] Figure 8 A schematic diagram of the three-dimensional structure of a sliding beam, a second protection frame and a third ladder of a device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment provided in Embodiment 2 of the present invention;

[0042] Fig. 9 A schematic diagram of a three-dimensional exploded structure of a first bevel gear, a second bevel gear and a rotating motor of a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention, which is a device for supplying power to two graphitizing furnaces in a one-to-two manner;

[0043] Fig.10 A schematic diagram of a three-dimensional exploded structure of a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention, which is a device for supplying power to two graphitizing furnaces with a pin shaft, a sliding frame, a rotating rod, and the like;

[0044] Fig.11 A schematic diagram of a three-dimensional exploded structure of a set of transformer-rectifier power supply equipment provided in Example 2 of the present invention, which is a device for supplying power to two graphitizing furnaces with one-to-two power supplies, a U-shaped walking railing and a first ladder;

[0045] Fig.12 for Figure 4 An enlarged schematic diagram of part A.

[0046] In the figure: 1. Graphitization plant; 2. Transformer and rectifier device; 3. Graphitization furnace; 4. Blower fan; 5. First vertical frame; 6. Second vertical frame; 7. Connecting rod; 8. Connecting beam; 9. Guide beam; 10. Rack; 11. Driving motor; 12. Spur gear; 13. First lead screw; 14. Negative power supply busbar; 15. Fixed plate; 16. Conductive positive electrode of furnace head; 17. First double-axis hydraulic cylinder; 18. Second lead screw; 19. Power supply positive busbar; 20. Cement jacking pier; 21. Conductive negative electrode of furnace head; 22. Second double-axis hydraulic cylinder; 23. U walking rail; 24. First ladder; 25. Sliding plate; 26. Sliding beam ; 27. First protective frame; 28. Second ladder; 29. ​​Second protective frame; 30. Third ladder; 31. Nut ring; 32. First bevel gear; 33. Motor box; 34. Rotating motor; 35. Rotating shaft; 36. Second bevel gear; 37. Rotating ring; 38. Electric push rod; 39. Rotating shaft; 40. Turntable; 41. U-shaped frame; 42. Crossbeam; 43. Sliding frame; 44. Pin shaft; 45. Rotating rod; 46. Slide; 47. Pin rod; 48. Connecting block; 49. Third double-axis hydraulic cylinder; 50. Conductive copper plate; 51. Soft busbar; 52. Conductive moving vehicle; 53. Rectifier room; 54. Hydraulic station. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

[0048] Example 1

[0049] Reference Figure 1 - Figure 2 A set of transformer-rectifier power supply equipment is a one-to-two device for supplying power to two graphitizing furnaces. The device mainly includes a graphitizing plant 1 and a plurality of graphitizing furnaces 3 located in the graphitizing plant 1. A furnace head conductive positive electrode 16 and a furnace head conductive negative electrode 21 are respectively arranged at both ends of the graphitizing furnace 3. A rectifier chamber 53 is arranged on one side of the graphitizing plant 1. A transformer-rectifier device 2 and a hydraulic station 54 are arranged in the rectifier chamber 53. Two negative power supply busbars 14 and two positive power supply busbars 19 are installed in the graphitizing plant 1 through cement jacking piers 20. The two negative power supply busbars 14 and the positive power supply busbars 19 are connected to the transformer-rectifier device 2.

[0050] In addition, it also includes a connecting component for connecting the negative power supply bus 14 and the positive power supply bus 19 with the furnace head conductive negative electrode 21 and the furnace head conductive positive electrode 16. Specifically, the connecting component includes four conductive moving vehicles 52. Two third double-axis hydraulic cylinders 49 are fixedly installed on the top of each conductive moving vehicle 52. Both output shafts of the two third double-axis hydraulic cylinders 49 are fixedly installed with conductive copper plates 50 through insulating plates. A soft bus 51 is installed between the two conductive copper plates 50.

[0051] In actual operation, the power supply is first transformed and rectified by the transformer and rectifier device 2, and then the electric energy is transmitted through the negative power supply bus 14 and the positive power supply bus 19 respectively. Then, the connecting component, that is, the third double-axis hydraulic cylinder 49 on the conductive moving vehicle 52, is used to push the conductive copper plate 50 through its output shaft, so that the conductive copper plate 50 is in contact and connected with the negative power supply bus 14 and the positive power supply bus 19. At the same time, the conductive copper plates 50 are connected by the soft bus 51, which can flexibly adapt to different position requirements. Finally, the conductive copper plate 50 transmits the electric energy to the furnace head conductive negative electrode 21 and the furnace head conductive positive electrode 16, so as to supply power to the graphitization furnace 3, and the conductive moving vehicle 52 can move to supply power to the next group of graphitization furnaces 3.

[0052] In this way, the function of one transformer and two rectifier power supply equipment to supply power to two graphitizing furnaces is realized, which improves the utilization rate and power supply efficiency of the equipment. At the same time, the design of the connecting components makes the connection and disconnection of the equipment more flexible and convenient, which improves the operability and practicality of the equipment.

[0053] Example 2

[0054] refer to Figure 2-12 , improved on the basis of Example 1: the device mainly includes a graphitization plant 1 and a plurality of graphitization furnaces 3 located in the graphitization plant 1, a furnace head conductive positive electrode 16 and a furnace head conductive negative electrode 21 are respectively provided at both ends of the graphitization furnace 3, a rectifier chamber 53 is provided on one side of the graphitization plant 1, a transformer rectifier device 2 and a hydraulic station 54 are provided in the rectifier chamber 53, and a connecting component is also provided in the graphitization plant 1 for powering on and repairing the graphitization furnace 3.

[0055] The connecting component includes a movable frame slidably connected in the graphitization plant 1, the movable frame consists of a first vertical frame 5 and two second vertical frames 6, and the two second vertical frames 6 are located on both sides of the first vertical frame 5, the graphitization furnace 3 is respectively located between the two second vertical frames 6 and the first vertical frame 5, and the ends of the two second vertical frames 6 close to each other are fixed with connecting rods 7 and connecting beams 8, and the connecting beams 8 are located above the connecting rods 7, and the ends of the two connecting rods 7 and the connecting beams 8 close to each other are fixedly connected to the two sides of the first vertical frame 5 respectively.

[0056] Two sliding plates 25 and a sliding beam 26 are also provided in the mobile frame. The two sliding plates 25 are respectively slidably set in the two second vertical frames 6 for inspecting one side of the graphitization furnace 3. The sliding beam 26 is slidably set in the first vertical frame 5 for inspecting the other side of the graphitization furnace 3.

[0057] A fixed plate 15 is fixedly installed on one side of the sliding plate 25 and the sliding beam 26, and two second double-axis hydraulic cylinders 22 are fixedly installed on the top of the fixed plate 15 fixed to the sliding plate 25, and the two output shafts of the two second double-axis hydraulic cylinders 22 are fixedly installed with conductive copper plates 50 through insulating plates, and a soft busbar 51 is installed between the two conductive copper plates 50, and two first double-axis hydraulic cylinders 17 are fixedly installed on the top of the fixed plate 15 fixed to the sliding beam 26, and the two output shafts of the two first double-axis hydraulic cylinders 17 are fixedly installed with conductive copper plates 50 through insulating plates, and a soft busbar 51 is installed between the two conductive copper plates 50.

[0058] Two guide beams 9 are also fixed to the inner wall of the top of the graphitization plant 1. A rack 10 is fixed to the side of the two guide beams 9 close to each other. A driving motor 11 is fixed to the top of the two connecting beams 8 through a frame. The output shaft of the driving motor 11 is fixed with a spur gear 12 through a coupling, and the spur gear 12 is meshed with the rack 10. The cooperation between the spur gear 12 and the rack 10 can drive the connecting beam 8 to move, thereby realizing the lateral movement of the mobile frame, and the connecting beam 8 is slidably connected to the guide beam 9 to ensure the stability of the movement.

[0059] The first vertical frame 5 is also fixedly connected with the first lead screw 13, and the two second vertical frames 6 are fixedly connected with the second lead screw 18. A nut ring 31 is rotatably penetrated in the sliding plate 25, and the nut ring 31 is threadedly sleeved on the outer wall of the second lead screw 18. The outer wall of the nut ring 31 is fixed with a first bevel gear 32. A motor box 33 is fixed on the top of the sliding plate 25, and a rotating motor 34 is fixed in the motor box 33. The output shaft of the rotating motor 34 rotates through the motor box 33 and is fixed with a rotating shaft 35. The outer wall of the rotating shaft 35 slides through the sliding groove and the slider. A second bevel gear 36 is connected, and the second bevel gear 36 is meshed with the first bevel gear 32. A side of the second bevel gear 36 close to the motor box 33 is rotatably connected to a rotating ring 37. A plurality of electric push rods 38 are fixed to one side of the motor box 33. The output shafts of the plurality of electric push rods 38 are all fixedly connected to the rotating ring 37. The movement of the second bevel gear 36 can be controlled by the cooperation of the rotating ring 37 and the electric push rods 38, thereby controlling the meshing state of the first bevel gear 32 and the second bevel gear 36, thereby realizing the lifting and lowering movement of the sliding plate 25.

[0060] In actual operation, the power supply is first transformed and rectified by the transformer and rectifier device 2, and then the electric energy is transmitted through the negative power supply bus 14 and the positive power supply bus 19. Then, the conductive copper plate 50 and the soft bus 51 in the connecting component are used to transmit the electric energy to the furnace head conductive negative electrode 21 and the furnace head conductive positive electrode 16 of the graphitization furnace 3 to supply power to the graphitization furnace 3.

[0061] When the graphitization furnace 3 needs to be inspected, the driving motor 11 and the spur gear 12 in the driving structure can be used to drive the moving frame to move horizontally so that the graphitization furnace 3 that needs to be inspected is located between the sliding plate 25 and the sliding beam 26. Then, the sliding plate 25 and the sliding beam 26 are driven to move up and down through the cooperation of the rotating motor 34, the second bevel gear 36, the first bevel gear 32 and the nut ring 31 in the inspection structure so that they are close to the furnace head of the graphitization furnace 3. Finally, the furnace head of the graphitization furnace 3 is inspected by the inspection equipment on the sliding plate 25 and the sliding beam 26.

[0062] The swing structure specifically includes a U-shaped frame 41 welded to the bottom of the sliding plate 25. The bottom of the sliding plate 25 is rotatably connected to a rotating shaft 39 through a base. This rotating shaft 39 is connected to the rotating shaft 35 in the previously mentioned maintenance structure through a synchronous wheel and a synchronous belt transmission. In this way, when the rotating motor 34 of the maintenance structure is working, it can drive the rotating shaft 39 to rotate together.

[0063] One end of the rotating shaft 39 extends into the U-shaped frame 41 and is fixed with a turntable 40. A pin shaft 44 is fixed to one side of the turntable 40 at a position deviating from the center of the circle. A plurality of beams 42 are fixed in the U-shaped frame 41. One side of these beams 42 is slidably connected to the same sliding frame 43. The pin shaft 44 slidably cooperates with the sliding frame 43. In this way, when the turntable 40 rotates, the pin shaft 44 drives the sliding frame 43 to move back and forth on the beam 42.

[0064] The bottom inner wall of the U-shaped frame 41 is rotatably connected with a rotating rod 45, a slide groove 46 is provided in the rotating rod 45, a pin rod 47 is slidably connected in the slide groove 46, and the top end of the pin rod 47 is fixedly connected to the bottom end of the sliding frame 43. In this way, when the sliding frame 43 moves back and forth, the rotating rod 45 will be driven to rotate back and forth through the pin rod 47.

[0065] A connecting block 48 is fixed to one side of the top of the rotating rod 45, and a blower fan 4 is fixed to one end of the connecting block 48. The blower fan 4 is set at a certain inclined angle. This design is to blow away the dust on the conductive electrode of the furnace head at one end of the graphitization furnace 3 below. When the rotating rod 45 rotates back and forth, the blower fan 4 will also swing accordingly, thereby blowing away the dust.

[0066] In addition, in order to ensure the safety of maintenance personnel, we have fixed a first protective frame 27 on the top of the two sliding plates 25. The first protective frame 27 provides a safe maintenance space for maintenance personnel. At the same time, a second ladder 28 is fixed on both sides of the two connecting rods 7. The bottom end of the second ladder 28 extends into the first protective frame 27. This design makes it easy for workers to enter the first protective frame 27 through the second ladder 28 to perform maintenance work.

[0067] Similarly, second protective frames 29 are fixed on both sides of the top of the sliding beam 26. The second protective frames 29 are located on both sides of the first vertical frame 5, which also provide a safe maintenance space for maintenance personnel. A third ladder 30 is also fixed on both sides of the two connecting rods 7. The bottom end of the third ladder 30 extends into the second protective frame 29. This design makes it easy for staff to enter the second protective frame 29 through the third ladder 30 to perform maintenance work.

[0068] In order to further improve the stability and safety of the device, multiple slide rails are fixed to the top inner wall and the bottom inner wall of the graphitization plant 1, and the first vertical frame 5 and the two second vertical frames 6 are slidably connected to the top inner wall and the bottom inner wall of the graphitization plant 1 through the slide rails. This design makes the mobile frame more stable when moving, and also improves the safety of maintenance work.

[0069] Finally, a U-walking rail 23 is fixed at the bottom of the two connecting rods 7, and two first ladders 24 are fixed to the bottom inner wall of the U-walking rail 23, and the two first ladders 24 extend to the two ends of the U-walking rail 23 respectively. This design makes it convenient for workers to walk on the U-walking rail 23 and perform maintenance work.

[0070] In summary, the device realizes the automatic cleaning function of the dust on the furnace head of the graphitization furnace 3 through the swing structure, and at the same time provides a safe maintenance space and work convenience for maintenance personnel by setting up multiple protection frames and ladders. In addition, the stability and safety of the device are further improved through the design of structures such as slide rails.

[0071] In the present application, one transformer and rectifier device 2 can simultaneously provide power to two graphitization furnaces, and can also alternately provide power to the two graphitization furnaces, thereby reducing one set of power supply equipment, reducing equipment investment and equipment operating costs, wherein the cost reduction is as follows:

[0072] 1. Reduce one set of power supply equipment, saving about 8 million yuan in overall investment (6 million yuan for one set of transformer and rectifier power supply equipment, 800,000 yuan for civil engineering, and 1.2 million yuan for 66KV power distribution and transmission equipment);

[0073] 2. Save electricity time and increase production efficiency by about 37.5%. The original power supply time of the two furnaces was 48 hours, and now it is 29 hours. It takes 1 hour to switch the furnaces, a total of 30 hours.

[0074] 3. Save the basic capacity fee of a group of power supply equipment. The monthly basic capacity fee of a group of power supply equipment is: 35000KW*22 yuan / KW=770,000 yuan, and the annual fee is: 77*12=9.4 million yuan.

[0075] 4. Save 40% of the electricity used in graphitization production of two furnaces.

[0076] A method for using a set of transformer rectifier power supply equipment to supply power to two graphitizing furnaces, comprising the following steps:

[0077] S1. First, the power supply is transformed and rectified by the transformer and rectifier device 2, and then the electric energy is transmitted through the negative power supply bus 14 and the positive power supply bus 19 respectively. Then, the connecting component, that is, the third double-axis hydraulic cylinder 49 on the conductive moving vehicle 52, is used to push the conductive copper plate 50 through its output shaft, so that the conductive copper plate 50 is in contact and connected with the negative power supply bus 14 and the positive power supply bus 19. At the same time, the conductive copper plates 50 are connected by the soft bus 51, which can flexibly adapt to different position requirements. Finally, the conductive copper plate 50 transmits the electric energy to the furnace head conductive negative electrode 21 and the furnace head conductive positive electrode 16, so as to supply power to the graphitization furnace 3. Therefore, the two graphitization furnaces 3 can be powered at the same time, so that the two graphitization furnaces 3 can be powered at the same time. The graphitization furnaces 3 are operated simultaneously, with the initial power of one furnace as the starting point of 9000-12000KW, and the load is gradually increased according to the power supply curve when the two graphitization furnaces 3 are connected in parallel. When the power load is close to the rated power of the power supply equipment of 33000KW, it takes about 20 hours, then the power supply is stopped, and the power supply of any one of the two graphitization furnaces 3 is disconnected. The transformer rectifier device 2 is dedicated to supply power to one of the graphitization furnaces 3. It takes about 4 hours to supply power to the end according to the power supply curve of one furnace, and then the power is cut off, the power supply load line of the furnace is disconnected, and the power supply of another graphitization furnace 3 is connected. It takes about 5 hours to supply power to the end according to the power supply curve of one furnace. The above is a cycle, and the power supply of other furnaces is carried out in turn;

[0078] S2. When it is necessary to supply power to other furnaces, the spur gear 12 is driven to rotate by the driving motor 11 at the same time. The spur gear 12 cooperates with the rack 10 to drive the first vertical frame 5 and the second vertical frame 6 to move horizontally. The second double-axis hydraulic cylinder 22 and the first double-axis hydraulic cylinder 17 can drive the conductive copper plate 50 to move. The conductive copper plate 50 cooperates with the furnace head conductive positive electrode 16 and the furnace head conductive negative electrode 21 to supply power to the graphitization furnace 3. The two graphitization furnaces 3 are operated at the same time. When it is necessary to disconnect one of the graphitization furnaces 3, it is only necessary to retract the corresponding conductive copper plate 50. In this way, the two graphitization furnaces 3 can be operated simultaneously and the two graphitization furnaces 3 can be operated alternately, thereby reducing a set of power supply equipment, and reducing the equipment investment and equipment operation cost.

[0079] S3. When maintenance is required, the staff can stand on the connecting rod 7, enter the U-walking rail 23 through the round hole on the connecting rod 7, and then move to the graphitization furnace 3 at the top through the first ladder 24 for maintenance;

[0080] S4. In addition, when it is necessary to inspect the furnace head conductive electrode of the graphitization furnace 3, the staff moves to the first protection frame 27 and the second protection frame 29 through the second ladder 28 and the third ladder 30 respectively, and the electric push rod 38 pushes the second bevel gear 36 to move in the direction of the first bevel gear 32. The second bevel gear 36 is meshed with the first bevel gear 32. The rotating motor 34 drives the first bevel gear 32 and the nut ring 31 to rotate through the second bevel gear 36. The nut ring 31 is threadedly connected with the first lead screw 13 and the second lead screw 18, so that the sliding plate 25 and the sliding beam 26 can be driven to rise and fall. The staff inspects the furnace head conductive electrodes at both ends of the graphitization furnace 3 in the first protection frame 27 and the second protection frame 29. The inspection is very convenient and the safety is extremely high.

[0081] S5. When the sliding plate 25 and the sliding beam 26 are descending, the rotating shaft 35 drives the rotating shaft 39 to rotate through the synchronous wheel and the synchronous belt, and the rotating shaft 39 drives the turntable 40 and the pin shaft 44 to rotate. The pin shaft 44 cooperates with the sliding frame 43 and the pin rod 47 to drive the rotating rod 45 to rotate back and forth, and the rotating rod 45 drives the blower fan 4 to rotate back and forth. The swing of the blower fan 4 can blow away the dust on the furnace head conductive electrode at one end of the graphitizing furnace 3, so that the staff can clearly observe the furnace head conductive electrode for maintenance, and avoid the dust from affecting the operation of the furnace head conductive electrode.

[0082] However, as is well known to those skilled in the art, the working principles and wiring methods of the rotating motor 34, electric push rods 38, 49, dual-axis hydraulic cylinder, drive motor 11 and transformer rectifier device 2 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0083] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A set of transformer rectifier power supply equipment is used to supply power to two graphitization furnaces, characterized in that: The invention comprises a graphitization plant (1) and a plurality of graphitization furnaces (3) located in the graphitization plant (1), wherein a furnace head conductive positive electrode (16) and a furnace head conductive negative electrode (21) are respectively arranged at two ends of the graphitization furnace (3), a rectifier chamber (53) is arranged on one side of the graphitization plant (1), a transformer rectifier device (2) and a hydraulic station (54) are arranged in the rectifier chamber (53), two negative power supply busbars (14) and two positive power supply busbars (19) are installed in the graphitization plant (1) through cement jacking piers (20), and the negative power supply busbars (14) and the positive power supply busbars (19) are connected to the transformer rectifier device (2); It also includes a connection assembly for connecting the negative power supply busbar (14) and the positive power supply busbar (19) with the furnace head conductive negative electrode (21) and the furnace head conductive positive electrode (16).

2. According to claim 1, a set of transformer rectifier power supply equipment is used to supply power to two graphitization furnaces, characterized in that: The connecting component comprises four conductive moving vehicles (52), two third double-axis hydraulic cylinders (49) are fixedly installed on the top of the conductive moving vehicles (52), two output shafts of the two third double-axis hydraulic cylinders (49) are fixedly installed with conductive copper plates (50) through insulating plates, and a soft busbar (51) is installed between the two conductive copper plates (50).

3. According to claim 1, a set of transformer rectifier power supply equipment is used to supply power to two graphitization furnaces, characterized in that: The connecting assembly comprises a movable frame slidably connected in the graphitization plant (1) and used for energizing the graphitization furnace (3); The mobile frame is composed of a first vertical frame (5) and two second vertical frames (6), and the two second vertical frames (6) are located on both sides of the first vertical frame (5), and the graphitization furnace (3) is respectively located between the two second vertical frames (6) and the first vertical frame (5), and the ends of the two second vertical frames (6) close to each other are fixed with a connecting rod (7) and a connecting beam (8), and the connecting beam (8) is located above the connecting rod (7), and the ends of the two connecting rods (7) and the connecting beam (8) close to each other are respectively fixedly connected to the two sides of the first vertical frame (5); Two sliding plates (25), the two sliding plates (25) being respectively slidably disposed in the two second vertical frames (6) and being used for inspecting and repairing the graphitization furnace (3); a sliding beam (26) which is slidably arranged in the first vertical frame (5) and is used for inspecting the other side of the graphitization furnace (3); A fixed plate (15) is fixedly installed on one side of the sliding plate (25) and the sliding beam (26); two second double-axis hydraulic cylinders (22) are fixedly installed on the top of the fixed plate (15) fixed to the sliding plate (25); two output shafts of the two second double-axis hydraulic cylinders (22) are fixedly installed with conductive copper plates (50) via insulating plates; a soft busbar (51) is installed between the two conductive copper plates (50); two first double-axis hydraulic cylinders (17) are fixedly installed on the top of the fixed plate (15) fixed to the sliding beam (26); two output shafts of the two first double-axis hydraulic cylinders (17) are fixedly installed with conductive copper plates (50) via insulating plates; a soft busbar (51) is installed between the two conductive copper plates (50); A driving structure, arranged in the first vertical frame (5) and the second vertical frame (6), and used for driving the conductive copper plate (50) to move so that the conductive copper plate (50) supplies power to different graphitization furnaces (3); Four groups of maintenance structures, two of which are located above the sliding plate (25), and the other two groups of maintenance structures are respectively arranged on both sides of the top of the sliding beam (26), the maintenance structures are used to control the sliding plate (25) and the sliding beam (26) to rise and fall, and to perform maintenance on the furnace heads at both ends of different graphitization furnaces (3); There are four groups of swing structures, two of which are arranged below two sliding plates (25) respectively, and the other two groups of swing structures are arranged below the sliding beam (26), and the maintenance structure provides power for the swing structures.

4. According to claim 3, a set of transformer rectifier power supply equipment is used to supply power to two graphitization furnaces, characterized in that: The driving structure comprises two guide beams (9) fixed to the inner wall of the top of the graphitization plant (1); a rack (10) is fixed to the sides of the two guide beams (9) close to each other; a driving motor (11) is fixed to the top of the two connecting beams (8) through a frame; a spur gear (12) is fixed to the output shaft of the driving motor (11) through a coupling; the spur gear (12) is meshed with the rack (10); the cooperation between the spur gear (12) and the rack (10) can drive the connecting beam (8) to move, and the connecting beam (8) is slidably connected to the guide beam (9).

5. According to claim 3, a set of transformer rectifier power supply equipment is used to supply power to two graphitization furnaces, characterized in that: The inspection structure comprises a first lead screw (13) fixedly connected to the first vertical frame (5), and a second lead screw (18) fixedly connected to each of the two second vertical frames (6); The invention also comprises a nut ring (31) which rotatably passes through the sliding plate (25), the nut ring (31) being threadedly sleeved on the outer wall of the second lead screw (18), the outer wall of the nut ring (31) being fixed with a first bevel gear (32), a motor box (33) being fixed on the top of the sliding plate (25), a rotating motor (34) being fixed in the motor box (33), an output shaft of the rotating motor (34) rotatably passes through the motor box (33) and is fixed with a rotating shaft (35), the outer wall of the rotating shaft (35) being slidably connected with a second bevel gear (32) through a sliding groove and a sliding block The second bevel gear (36) is meshed with the first bevel gear (32); a rotating ring (37) is rotatably connected to a side of the second bevel gear (36) close to the motor box (33); a plurality of electric push rods (38) are fixed to one side of the motor box (33); output shafts of the plurality of electric push rods (38) are fixedly connected to the rotating ring (37); the movement of the second bevel gear (36) and the meshing state of the first bevel gear (32) and the second bevel gear (36) can be controlled by the cooperation of the rotating ring (37) and the electric push rod (38).

6. The device for supplying power to two graphitizing furnaces with a set of transformer-rectifier power supply equipment as claimed in claim 5 is characterized in that: The swing structure comprises a U-shaped frame (41) welded to the bottom of the sliding plate (25); the bottom of the sliding plate (25) is rotatably connected to a rotating shaft (39) through a base; the rotating shaft (39) is connected to the rotating shaft (35) through a synchronous wheel and a synchronous belt transmission; one end of the rotating shaft (39) extends to the U-shaped frame (41) where a rotating disk (40) is fixed; a pin (44) is fixed to one side of the rotating disk (40) at a position deviating from the center of a circle; a plurality of cross beams (42) are fixed to one side of the plurality of cross beams (42) in sliding connection with a same sliding frame (43); the pin (44) is slidably matched with the sliding frame (43); the rotating disk (40) is connected to the rotating disk (40) through a rotating wheel (41) and a rotating wheel ...0) and a rotating wheel (40) is connected to the rotating disk (40) through a rotating wheel (40) and a rotating wheel (40) is connected to the rotating disk (40) through a rotating wheel The pin shaft (44) drives the sliding frame (43) to move back and forth. The bottom inner wall of the U-shaped frame (41) is rotatably connected to a rotating rod (45). A sliding groove (46) is provided in the rotating rod (45). A pin rod (47) is slidably connected in the sliding groove (46). The top end of the pin rod (47) is fixedly connected to the bottom end of the sliding frame (43). The sliding frame (43) drives the rotating rod (45) to rotate back and forth through the pin rod (47). A connecting block (48) is fixed on one side of the top of the rotating rod (45). A blower fan (4) is fixed on one end of the connecting block (48). The blower fan (4) is tilted to a certain extent and is used to blow away dust on the conductive electrode of the furnace head at one end of the graphitization furnace (3) below.

7. The device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment as claimed in claim 5 is characterized in that: A first protective frame (27) is fixed on the top of the two sliding plates (25) to provide a safe maintenance space for maintenance personnel. A second ladder (28) is fixed on both sides of the two connecting rods (7), and the bottom end of the second ladder (28) extends into the first protective frame (27), so that the staff can enter the first protective frame (27) through the second ladder (28).

8. The device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment as claimed in claim 6 is characterized in that: A second protection frame (29) is fixed on both sides of the top of the sliding beam (26), and the second protection frame (29) is located on both sides of the first vertical frame (5) to provide a safe maintenance space for maintenance personnel. A third ladder (30) is fixed on both sides of the two connecting rods (7), and the bottom end of the third ladder (30) extends into the second protection frame (29), so that the staff can enter the second protection frame (29) through the third ladder (30).

9. The device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment as claimed in claim 8 is characterized in that: A plurality of slide rails are fixed to the top inner wall and the bottom inner wall of the graphitization plant (1), and the first vertical frame (5) and the two second vertical frames (6) are slidably connected to the top inner wall and the bottom inner wall of the graphitization plant (1) via the slide rails.

10. The device for supplying power to two graphitization furnaces with a set of transformer-rectifier power supply equipment as claimed in claim 9, characterized in that: A U-shaped walking rail (23) is fixed to the bottom of the two connecting rods (7), two first ladders (24) are fixed to the bottom inner walls of the two U-shaped walking rails (23), and the two first ladders (24) extend to the two ends of the U-shaped walking rail (23) respectively.

Images