Charging device, graphitization furnace and charging method

Abstract

The invention provides a charging device, a graphitization furnace and a charging method. The loading device comprises a movable frame capable of moving in the X direction and a filling system arranged on the movable frame, the filling system comprises a first stock bin, a second stock bin and a zoning device which are installed on the movable frame, a plurality of discharging pipes which are arranged in the Y direction and can stretch out and draw back in the Z direction are arranged on the zoning device, and the first stock bin and the second stock bin are arranged on the movable frame. A discharging port is formed in the bottom of each discharging pipe, the first stock bins are communicated with the discharging pipes in the middle one by one through first pipelines with the corresponding number, the second stock bins are communicated with all the discharging pipes one by one through second pipelines with the corresponding number, and the X direction and the Y direction are perpendicular to each other on the same overlook projection plane. And the Z direction is vertical to the overlooking projection surface. The problems of high production cost and the like caused by extremely low efficiency, high manual operation intensity, serious dust sealing pollution, serious ton bag damage and the like of a manual filling operation mode are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery negative electrode material production, and in particular to a charging device, a graphitization furnace and a charging method. Background Art

[0002] Environmentally friendly and sustainable energy systems have been gradually developed, which mainly include electric vehicles and battery energy storage systems. Batteries, as electric vehicles and battery energy storage systems, generally include positive electrode materials, negative electrode materials, diaphragms, electrolytes, etc.

[0003] Negative electrode materials are generally processed in a graphitization furnace, and the furnace shell of the graphitization furnace is provided with bottom insulation material and side insulation material, which has a low replacement frequency and is easy to load product materials. However, the loading of top insulation material and resistor material involves staggered loading of two materials, which is difficult, especially the resistor material loading area cannot be mixed with insulation material. The resistor material area is mainly used to discharge volatiles during the product heating process. The mixing of insulation material may cause a major risk of furnace spraying, so it is currently mainly loaded manually.

[0004] Manual loading requires using a ton bag to lift the material to the loading area with a crane, then cutting the bag open and manually pushing the material to the corresponding area for loading. This operation method has low efficiency, high labor intensity, high dust pollution, large ton bag damage and high production costs. Summary of the invention

[0005] The purpose of the present invention is to provide a charging device, a graphitization furnace and a charging method that do not require manual charging, so as to overcome the problems of extremely low efficiency of manual charging operation, high labor intensity, large dust pollution, large damage to ton bags, etc., which cause high production costs.

[0006] The technical solution of the present invention is: a loading device, comprising a mobile frame capable of moving in an X direction, and a loading system arranged on the mobile frame and moving with the mobile frame, the loading system comprising a first silo, a second silo and a partitioner installed on the mobile frame, the partitioner is provided with a plurality of discharge pipes arranged in the Y direction and capable of extending and retracting in the Z direction, a discharge port is formed at the bottom of each of the discharge pipes, the first silo is connected one-to-one with the discharge pipe in the middle through a corresponding number of first pipes, the second silo is connected one-to-one with all the discharge pipes through a corresponding number of second pipes, the X direction and the Y direction are perpendicular to each other on the same top view projection plane, and the Z direction is perpendicular to the above-mentioned top view projection plane.

[0007] Preferably, the lower ends of the plurality of discharge pipes are connected through a trough body, a plurality of partitions are provided in the trough body to separate the discharge ports, the trough body forms a first side plate on one side of the X direction, and the trough body forms a second side plate on the other side of the X direction; the first side plate on at least one discharge port located in the middle has a height L1, and the first side plates on the remaining discharge ports have a height L2, L1<L2; the discharge ports have inner top plates, and the inner top plate of at least one discharge port located in the middle is higher than the inner top plates of the remaining discharge ports.

[0008] Preferably, the second side plate is located at the front side of the moving frame in the working direction, and the height of the second side plate is greater than the height of the first side plate.

[0009] Preferably, the discharge pipe includes a fixed pipe connected to the mobile frame and a movable pipe telescopic to the lower end of the fixed pipe, a lifting device connected to the movable pipe is installed on the mobile frame, the lower end of the movable pipe forms the discharge port, and the first pipe and the second pipe are connected to the fixed pipe.

[0010] Preferably, the mobile frame is provided with a first support arm for installing the first silo and the second silo, a second support arm for installing the lifting device, and a third support arm for installing the fixed pipe, the second support arm and the third support arm are parallel to the Y direction, and the first support arm is parallel to the X direction.

[0011] Preferably, a first gate valve is provided between the first silo and the first pipeline, and a second gate valve is provided between the second silo and the second pipeline.

[0012] Preferably, each of the first pipelines is provided with a first shut-off fan, and each of the second pipelines is provided with a second shut-off fan.

[0013] The present invention also provides a graphitization furnace, comprising a furnace shell and the above-mentioned charging device, wherein a movable frame of the charging device is movably arranged on the furnace shell, and a discharge port of the charging device is arranged corresponding to the furnace shell.

[0014] Preferably, the furnace shell is provided with filling materials, and the filling materials include bottom insulation material, product material, side insulation material, bottom resistance material, top insulation material and air holes; the furnace shell is provided with a first layer, a second layer, a third layer and a fourth layer from bottom to top; the bottom insulation material is provided in the first layer, the product material and the side insulation material are provided in the second layer, and the side insulation material is located on both sides of the product material in the Y direction; the bottom resistance material, the top insulation material and the air holes are located in the third layer, and the bottom resistance material is located at the upper end of the product material, the air holes are intermittently arranged along the X direction in the third layer, and the top insulation material is filled at the top of the side insulation material and the bottom resistance material and also filled between the intervals of the air holes; the upper ends of the air holes extend above the top insulation material and extend to the fourth layer.

[0015] The present invention also provides a charging method using the graphitization furnace, comprising: Step 1: Set the heights of the second, third and fourth layers in the furnace shell and the filling height of the resistor material; set the displacement speed of the moving frame; Step 2: Place the product material in the middle of the second layer in the furnace shell; load the resistor material into the first silo and load the insulation material into the second silo; start the moving frame to move it along the X direction; Step 3: Fill the second layer: Step 3.1, first open the first gate valve, then connect all the first pipes, the resistor material in the first silo flows into the furnace shell from the discharge port on the first pipe to form the bottom resistor material, and the bottom resistor material is located at the upper end of the product material; Step 3.2, drive the mobile frame to move from the E end of the furnace shell to the F end, and when it reaches the F end, disconnect the first pipeline, drive the mobile frame to turn back from the F end to the E end, and repeat step 4.1 to repeat the loading; Step 3.3, repeating steps 3.1 and 3.2, and when the bottom resistor material filling height reaches a preset value, disconnecting the first pipeline; Step 4: Fill the third layer: Step 4.1, driving the movable frame to move from the E end to the F end of the furnace shell; Step 4.2, when step 4.1 is being performed, all the second pipes are first connected, and the insulation material in the second silo flows from all the second pipes into the third layer of the furnace shell to form the top insulation material, and the moving frame is driven to travel a distance T; Step 4.3, after the moving frame 5 travels a distance of T, all the second pipes are closed, at least one first pipe in the middle of the partition is opened, and the second pipes in the remaining positions are opened at the same time, the resistance material in the first silo flows into the third layer of the furnace shell to form air holes, and the insulation material in the second silo flows into the third layer of the furnace shell to form top insulation material, and the moving frame is driven to travel a distance of T; Step 4.4, after the moving frame has traveled a distance of T, the first pipeline is closed, all the second pipelines are opened, and the insulation material in the second silo flows from all the second pipelines into the third layer of the furnace shell to form the top insulation material, and the moving frame is driven to travel a distance of T; Step 4.5, when the mobile frame travels a distance T again, repeat step 4.3 until the mobile frame travels a distance T; Repeat steps 4.2-4.5; Step 4.6, when the filling height of the top insulation material and the air holes reaches the preset height value of the third layer, disconnect the first pipeline and the second pipeline, and drive the moving frame from the F end of the furnace shell back to the E end; Step 5: Fill the fourth layer: Step 5.1, driving the movable frame to move from the E end to the F end of the furnace shell; Step 5.2, when step 5.1 is being performed, the first pipe corresponding to the position of the vent hole formed in step 4 is kept closed, and the second pipes at the remaining positions are opened, and the insulation material in the second silo flows into the fourth layer of the furnace shell to form the top insulation material, and the moving frame is driven to travel a distance T; Step 5.3, after the mobile frame 5 has traveled a distance of T, the first pipe corresponding to the position of the vent hole formed in step 4 is opened, the resistor material in the first silo flows into the fourth layer of the furnace shell to form the vent hole, and the insulation material in the second silo flows into the side of the vent hole of the furnace shell to form the top insulation material; the mobile frame is driven to travel a distance of T; Step 5.4, when the mobile frame travels a distance T again, repeat steps 5.2-5.3; Step 5.5, when the filling height of the air holes and the thermal insulation material reaches the preset height value of the fourth layer, disconnect the first pipeline and the second pipeline; and complete the loading.

[0016] Compared with the related art, the present invention has the following beneficial effects: 1. Design a partitioner that can connect the first silo and the second silo at the same time. By switching on and off the outlets corresponding to the first silo and the second silo on the partitioner, staggered material loading can be achieved. The insulation material and the resistor material can be loaded at the same time, and the risk of the insulation material being mixed with the resistor material can be avoided. 2. The loading of materials is realized by the movement of the mobile frame, that is, by controlling the moving speed of the mobile frame, the uniformity of the loading is ensured, and the effective loading speed is achieved to reduce dust pollution; 3. By adopting the method of discharging partitioned and layered reciprocating filling, the filling of two filling materials, graphitized thermal insulation material and resistor material (including air permeable holes and resistor material), is completed, and it has the characteristics of compact structure, high filling efficiency, high degree of automation, low operating cost, and low dust pollution; Fourth, the two side plates of the trough body in the moving direction of the moving frame have a height difference. The second side plate on the side facing the working direction of the moving frame is higher than the first side plate on the other side, and the first side plate is also provided with a height difference according to the discharge ports at different positions to prevent the resistance material from mixing into the insulation material during filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of the charging device provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the mobile frame; Figure 3 for Figure 1 The structural diagram without the mobile frame; Figure 4 for Figure 3 A schematic diagram of the structure of the partitioner in FIG. Figure 5 A schematic diagram of the structure of a graphitization furnace provided by the present invention; Figure 6 for Figure 1 Schematic diagram of transverse section; Figure 7 for Figure 1 Schematic diagram of longitudinal section; Figure 8 Figure 1 is the loading process diagram; Fig. 9 Figure 2 is the loading process diagram; Fig.10 Figure 3 is the loading process diagram; Fig.11 for Fig.10 Stereoscopic image of Fig.12 This is a schematic diagram of the loading process (single row of vent holes); Fig.13 This is a schematic diagram of the loading process (double row of air holes); Fig.14 A schematic diagram of the structure of a partition equipped with double rows of air holes.

[0018] In the attached drawings: 1, charging device; 2, filling material; 3, furnace shell; 4, filling system; 5, moving frame; 6, first support arm; 7, second support arm; 8, third support arm; 9, driver; 10, first silo; 11, first gate valve; 12, lifting device; 13, first fan shut-off; 14, second fan shut-off; 15, fixed pipe; 16, wire rope; 17, movable pipe; 18, material level detector; 19, partition; 20, partition ; 21. Top plate; 22. Second plug valve; 23. Second silo; 24. First discharge port; 25. Second discharge port; 26. Air vent; 27. Top insulation material; 28. Bottom resistance material; 29. ​​Side insulation material; 30. Product material; 31. Bottom insulation material; 32. Track; 33. Discharge pipe; 34. First pipeline; 35. Second pipeline; 36. Discharge port; 37. Trough body; 371. First side plate; 372. Second side plate. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.

[0020] like Figure 1 As shown, a loading device provided in this embodiment includes a moving frame 5 that can move in the X direction, and a loading system 4 that is arranged on the moving frame 5 and moves with the moving frame 5 .

[0021] like Figure 1 , Figure 3 As shown, the filling system 4 includes a first silo 10, a second silo 23 and a partitioner 19 installed on the mobile frame 5. The first silo 10 is filled with resistance material, and the second silo 23 is filled with insulation material. A material port is provided at the bottom of the first silo 10, and the material port is connected to a plurality of first pipes 34 through a first gate valve 11. A material port is provided at the bottom of the second silo 23, and the material port is connected to a plurality of second pipes 35 through a second gate valve 22. The number of first pipes 34 is less than the number of second pipes 35, and the specific number is determined according to the width of the furnace shell 3 of the graphitization furnace. In the present embodiment, the number of the first pipes 34 is three, and the number of the second pipes 35 is five. The first silo 10 and the second silo 23 are both installed on the first support arm 6 of the mobile frame 5. As shown Figure 2 As shown, the first supporting arm 6 is parallel to the X direction and is located on the top of the moving frame 5 .

[0022] like Figure 3 , Figure 4As shown, the partitioner 19 is provided with a plurality of discharge pipes 33 arranged in the Y direction and capable of being extended in the Z direction. The number of the discharge pipes 33 corresponds to the number of the second pipes 35. The discharge pipes 33 are arranged in the Y direction of the loading device. The discharge pipes 33 include a fixed pipe 15 connected to the mobile frame 5 and a movable pipe 17 that is extended at the lower end of the fixed pipe 15. Figure 1 , Figure 2 As shown, two third support arms 8 are arranged side by side at the lower end of the mobile frame 5, and the fixed pipe 15 is clamped between the two third support arms 8 and fixed.

[0023] like Figure 3 As shown, the mobile frame 5 is provided with a lifting device 12 connected to the movable pipe 17. Figure 1 , Figure 2 As shown, the lifting device 12 includes a motor, a winch and a steel wire rope 16. The motor is installed on the second support arm 7 of the mobile frame 5, and the second support arm 7 is located between the first support arm 6 and the third support arm 8. The second support arm 7 and the third support arm 8 are parallel to the Y direction, and the first support arm 6 is parallel to the X direction. The winch is installed on the motor shaft of the motor, one end of the steel wire rope 16 rotates on the winch, and the other end is connected to the groove body 37 on the partition 19. The lower end of the movable pipe 17 forms a discharge port 36. The first pipeline 34 is connected one by one with the fixed pipe 15 of the discharge pipe 33 in the middle, and the middle here can be the middle three. The second pipeline 35 is connected one by one with all the discharge pipes 33. The X direction and the Y direction are perpendicular to each other on the same top view projection plane, and the Z direction is perpendicular to the above-mentioned top view projection plane.

[0024] like Figure 4 As shown, the lower ends of the five discharge pipes 33 are connected by a trough body 37. A plurality of partitions 20 are provided in the trough body 37 to separate the rectangular discharge port 36. The discharge port 36 includes a first discharge port 24 and a second discharge port 25. The trough body 37 forms a first side plate 371 on one side of the X direction, and the trough body 37 forms a second side plate 372 on the other side of the X direction. The second side plate 372 is located at the front side of the tooling direction of the mobile frame 5, and the height of the second side plate 372 is greater than the height of the first side plate 371, and the other two side walls of the rectangular discharge port 36 are at the same height as the second side plate 372. During loading, the material flows out from the gap below the first side plate 371 and combined with the movement of the mobile frame 5, the loading is realized.

[0025] like Figure 4 As shown, the first discharge port 24 is located in the middle of the five discharge ports 36, and the rest are second discharge ports 25. The first side plate 371 of the first discharge port 24 has a height L1, and the first side plate 371 of the second discharge port 25 has a height L2, L1<L2.

[0026] The vent hole 26 is filled through the first discharge port 24, Figure 4 The partition 19 shown is used to fill a single row of vent holes. Fig.13 ), then use Fig.14 In the partitioner 19 shown, at this time, the first discharge port 24 is located at the second and fourth positions in the middle, and the middle and other positions are the second discharge ports 25.

[0027] like Figure 3 As shown, a material level detector 18 for monitoring the filling material is provided at one end of the movable pipe 17 close to the tank body 37. A first shut-off fan 13 is provided on each of the first pipes 34, and a second shut-off fan 14 is provided on each of the second pipes 35.

[0028] like Figure 2 As shown, the bottom of the mobile frame 5 is provided with a driver 9 (such as a servo motor) and a roller connected to the driver 9, and the roller is used to travel on the track 32 of the furnace shell 3 (such as Figure 6 as shown).

[0029] like Figure 5 As shown, a graphitization furnace comprises a furnace shell 3, a filling material 2 arranged in the furnace shell 3 and the above-mentioned charging device 1, wherein a movable frame 5 of the charging device 1 is movably arranged on the furnace shell 3, and a discharge port 36 of the charging device is arranged corresponding to the furnace shell 3.

[0030] like Figure 6 , Figure 7 As shown, the furnace shell 3 is provided with a filling material 2, and the filling material 2 includes a bottom insulation material 31, a product material 30, a side insulation material 29, a bottom resistor material 28, a top insulation material 27 and a vent hole 26. The furnace shell 3 is provided with a first layer A, a second layer B, a third layer C and a fourth layer D from bottom to top. The bottom insulation material 31 is provided in the first layer A. The product material 30 and the side insulation material 29 are provided in the second layer B, and the side insulation material 29 is located on both sides of the product material 30 in the Y direction. The bottom resistor material 28, the top insulation material 27 and the vent hole 26 are located in the third layer C, and the bottom resistor material 28 is located at the upper end of the product material 30. The vent hole 26 is intermittently provided in the third layer C along the X direction, and the top insulation material 27 is filled on the top of the side insulation material 29 and the bottom resistor material 28 and also filled between the intervals of the vent hole 26. The upper ends of the ventilation holes 26 extend above the top heat-insulating material 27 and into the fourth layer D.

[0031] like Figure 7As shown, the furnace shell 3 has an E end and an F end that are relatively arranged, the E end is the starting end, and the F end is the end point. The charging device 1 moves from the E end to the F end as the working direction. After the charging device 1 reaches the F end, it is necessary to shut down the running pipeline, return to the E end along the original route, and repeat the loading.

[0032] The present invention also provides a method for charging the graphitization furnace, comprising the following steps: Step 1: set the heights of the second layer B, the third layer C and the fourth layer D in the furnace shell 3 and the filling height of the resistor material 5; and set the displacement speed of the moving frame 5.

[0033] Step 2: Place the product material 30 in the middle of the second layer B in the furnace shell 3. Load the resistor material into the first silo 10 and the insulation material into the second silo 23; start the lifting device 12 to lower the partition 19 to a suitable position (a sensor can be set on the partition, and the distance value between the sensor and the upper surface of the material in the furnace shell 3 can be set, and the height of the partition 19 can be adjusted by sensing the actual distance value, the same below); drive the mobile frame 5 to move from the E end to the F end along the X direction at the set displacement speed.

[0034] The bottom insulation material 31 and the side insulation material 29 are pre-installed, and a gap is left in the middle to place the product material 30 (such as Figure 8 shown) Step 3: Fill the second layer of material (such as Figure 8 shown): Step 3.1, first open the first gate valve 11, then open the first blower 13 on each of the three first pipes 34, the resistor material in the first silo 10 flows into the furnace shell 3 from the discharge port 36 on the first pipe 34 to form the bottom resistor material 28, and the bottom resistor material 28 is located at the upper end of the product material 30; Step 3.2, driving the movable frame 5 to move from the E end of the furnace shell 3 to the F end, and when reaching the F end, disconnecting the first pipe 34, driving the movable frame 5 to turn back from the F end to the E end, and repeating step 4.1 to repeat the loading; Step 3.3, repeating steps 3.1 and 3.2, when the filling height of the bottom resistor material 28 reaches a preset value, disconnecting the first pipeline 34; in this process, the height of the material is continuously sensed by the sensor to lift the partitioner 19; Step 3.4, start the lifting device 12 to drive the partitioner 19 to rise to a suitable position for loading the third layer of material.

[0035] Step 4: Fill the third layer of material (such as Fig. 9 , Fig.11 shown): Step 4.1, driving the movable frame 5 to move from the E end to the F end of the furnace shell 3; Step 4.2, when step 4.1 is performed, all the second pipes 35 are first connected, and the insulation material in the second silo 23 flows from all the second pipes 35 into the third layer C of the furnace shell 3 to form the top insulation material 27, and the moving frame 5 is driven to travel a distance T; Step 4.3, after the moving frame 5 has traveled a distance T, all the second pipes 35 are closed. If a single row of vent holes 26 is to be loaded, a first pipe 34 located in the middle of the partition 19 is first connected (the first fan 13 thereon is turned on), and the second fans 14 on the second pipes 35 at the remaining positions are turned on at the same time. The resistance material in the first silo 10 flows into the third layer C of the furnace shell 3 to form the vent holes 26, and the insulation material in the second silo 23 flows into the third layer C of the furnace shell 3 to form the top insulation material 27. Drive the moving frame 5 to travel a distance T; Step 4.4, after the moving frame 5 has traveled a distance T, the first pipe 34 is closed, all the second pipes 35 are opened, and the insulation material in the second silo 23 flows from all the second pipes 35 into the third layer C of the furnace shell 3 to form the top insulation material 27. Step 4.5, when the mobile frame 5 travels a distance T again, repeat step 4.3 until the mobile frame 5 travels a distance T; Repeat steps 4.2-4.5; during steps 4.2-4.5, the height of the material is continuously sensed by the sensor to lift the partitioner 19; Step 4.6, when the filling height of the top insulation material 27 and the air vents 26 reaches the preset height value of the third layer C, disconnect the first pipe 34 and the second pipe 35. Start the lifting device 12 to drive the partitioner 19 to rise to the appropriate position for filling the fourth layer of material. Drive the moving frame 5 from the F end of the furnace shell 3 back to the E end.

[0036] If the single stroke from end E to end F cannot reach the preset height, the first pipe 34 and the second pipe 35 are closed, and the moving frame 5 is driven back from end F to end E, and the above steps are repeated to repeat the filling.

[0037] like Figure 4 , Fig.14 As shown, the discharge port 36 has an inner top plate 21, and the height of the inner top plate 21 of the first discharge port 24 is higher than the height of the inner top plate 21 of the second discharge port 25. Therefore, after step four is completed, an air vent 26 and a top insulation material 27 that are higher than other parts are formed in the middle of the furnace shell 3, and the two are alternately arranged.

[0038] If double rows of air holes 26 are to be filled, step 4.3 is to first connect the first pipes 34 at the second and fourth positions (i.e. the two sides in the middle) of the partitioner 19, and connect the second pipes 35 at the remaining positions to inject the insulation material.

[0039] Step 5: Fill the fourth layer of material (such as Fig.10 , Fig.12 shown): Step 5.1, driving the movable frame 5 to move from the E end of the furnace shell 3 to the F end; Step 5.2, when step 5.1 is being performed, the first pipe 34 corresponding to the position of the vent hole 26 formed in step 4 is kept closed, and the second pipes 35 at the remaining positions are opened, and the insulation material in the second silo 23 flows into the fourth layer D of the furnace shell 3 to form the top insulation material 27, and the moving frame 5 is driven to travel a distance T; Step 5.3, after the mobile frame 5 has traveled a distance T, if a single row of air holes 26 are to be filled, first connect a first pipe 34 located in the middle of the partition 19 (turn on the first fan 13 on it). The resistance material in the first silo 10 flows into the fourth layer D of the furnace shell 3 to form the air holes 26, and at the same time, the insulation material in the second silo 23 flows into the side of the air holes 26 of the furnace shell 3 to form the top insulation material 27. Figure 4 , Fig.14 As shown, the discharge port 36 has an inner top plate 21, and the height of the inner top plate 21 of the first discharge port 24 is higher than the height of the inner top plate 21 of the second discharge port 25, so the height of the air holes 26 loaded at one time is higher than the height of the insulation material 27. The moving frame 5 is driven to travel a distance T; Step 5.4, when the moving frame 5 travels a distance T again, repeat steps 5.2-5.4. In this process, the height of the material is continuously sensed by the sensor to lift the partitioner 19; If the single stroke from end E to end F cannot reach the preset height, the first pipe 34 and the second pipe 35 are closed, the moving frame 5 is driven to fold back from end F to end E, and the above steps are repeated to repeat the filling; Step 5.5, when the filling height of the air holes 26 and the heat-insulating material 27 reaches the preset height value of the fourth layer D, disconnect the first pipe 34 and the second pipe 35; Step 5.6, start the lifting device 12 to drive the partitioner 19 to rise to the initial position, and drive the moving frame 5 to return from the F end of the furnace shell 3 to the E end; complete the loading.

[0040] If double row of vent holes 26 are filled (such as Fig.13 As shown), the first pipeline 34 at the second and fourth positions (i.e., the two sides in the middle) of the partition 19 is connected and disconnected.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A charging device, characterized in that: The invention comprises a mobile frame (5) capable of moving in the X direction, and a loading system (4) arranged on the mobile frame (5) and moving with the mobile frame (5), wherein the loading system (4) comprises a first silo (10), a second silo (23) and a partition (19) installed on the mobile frame (5), wherein the partition (19) is provided with a plurality of discharge pipes (33) arranged in the Y direction and capable of extending and retracting in the Z direction, wherein a discharge port (36) is formed at the bottom of each of the discharge pipes (33), wherein the first silo (10) is connected one-to-one with the discharge pipes (33) in the middle through a corresponding number of first pipes (34), and the second silo (23) is connected one-to-one with all the discharge pipes (33) through a corresponding number of second pipes (35), wherein the X direction and the Y direction are perpendicular to each other on the same top view projection plane, and the Z direction is perpendicular to the above-mentioned top view projection plane.

2. The charging device according to claim 1, characterized in that: The lower ends of the plurality of discharge pipes (33) are connected via a trough body (37); a plurality of partitions (20) are arranged in the trough body (37) to separate the discharge ports (36); the trough body (37) forms a first side plate (371) on one side in the X direction, and the trough body (37) forms a second side plate (372) on the other side in the X direction; the first side plate (371) on at least one discharge port (36) in the middle has a height L1, and the first side plates (371) on the other discharge ports (36) have a height L2, where L1<L2; the discharge ports (36) have inner top plates (21), and the inner top plate (21) of at least one discharge port (36) in the middle is higher than the inner top plates (21) of the other discharge ports (36).

3. The charging device according to claim 2, characterized in that: The second side plate (372) is located at the front side of the movable frame (5) in the working direction, and the height of the second side plate (372) is greater than the height of the first side plate (371).

4. The charging device according to claim 1, characterized in that: The discharge pipe (33) comprises a fixed pipe (15) connected to the mobile frame (5), and a movable pipe (17) telescopically connected to the lower end of the fixed pipe (15); a lifting device (12) connected to the movable pipe (17) is installed on the mobile frame (5); the lower end of the movable pipe (17) forms the discharge port (36); and the first pipe (34) and the second pipe (35) are connected to the fixed pipe (15).

5. The charging device according to claim 4, characterized in that: The mobile frame (5) is provided with a first support arm (6) for installing the first silo (10) and the second silo (23), a second support arm (7) for installing the lifting device (12), and a third support arm (8) for installing the fixed pipe (15), the second support arm (7) and the third support arm (8) are parallel to the Y direction, and the first support arm (6) is parallel to the X direction.

6. The charging device according to claim 1, characterized in that: A first gate valve (11) is provided between the first material bin (10) and the first pipeline (34), and a second gate valve (22) is provided between the second material bin (23) and the second pipeline (35).

7. The charging device according to claim 1, characterized in that: Each of the first pipes (34) is provided with a first shut-off fan (13), and each of the second pipes (35) is provided with a second shut-off fan (14).

8. A graphitization furnace, comprising a furnace shell (3), characterized in that: It also comprises a charging device according to any one of claims 1 to 7, wherein a movable frame (5) of the charging device is movably arranged on the furnace shell (3), and a discharge port (36) of the charging device is arranged corresponding to the furnace shell (3).

9. The graphitization furnace according to claim 8, characterized in that: The furnace shell (3) is provided with a filling material (2), and the filling material (2) includes a bottom insulation material (31), a product material (30), a side insulation material (29), a bottom resistance material (28), a top insulation material (27), and a vent hole (26); the furnace shell (3) is provided with a first layer (A), a second layer (B), a third layer (C), and a fourth layer (D) from bottom to top; the bottom insulation material (31) is provided in the first layer (A), the product material (30) and the side insulation material (29) are provided in the second layer (B), and the side insulation material (29) is located The bottom resistor material (28), the top thermal insulation material (27) and the vent hole (26) are located in the third layer (C), and the bottom resistor material (28) is located at the upper end of the product material (30); the vent hole (26) is intermittently arranged along the X direction in the third layer (C); the top thermal insulation material (27) is filled on the top of the side thermal insulation material (29) and the bottom resistor material (28) and also filled in the interval between the vent hole (26); the upper end of the vent hole (26) extends above the top thermal insulation material (27) and extends to the fourth layer (D).

10. A method for charging a graphitization furnace as claimed in claim 9, characterized in that: include: Step 1, setting the heights of the second layer (B), the third layer (C) and the fourth layer (D) in the furnace shell (3) and the filling height of the resistor material (5); setting the displacement speed of the moving frame (5); Step 2: placing the product material (30) in the middle of the second layer (B) in the furnace shell (3); loading the resistor material into the first material bin (10) and loading the insulation material into the second material bin (23); Start the moving frame (5) to move along the X direction; Step 3: Fill the second layer: Step 3.1, first open the first gate valve (11), then connect all the first pipes (34), the resistor material in the first material bin (10) flows into the furnace shell (3) from the discharge port (36) on the first pipe (34) to form a bottom resistor material (28), and the bottom resistor material (28) is located at the upper end of the product material (30); Step 3.2, driving the movable frame (5) to move from the E end of the furnace shell (3) to the F end, and when reaching the F end, disconnecting the first pipe (34), driving the movable frame (5) to turn back from the F end to the E end, and repeating step 4.1 to repeat the loading; Step 3.3, repeating steps 3.1 and 3.2, and when the filling height of the bottom resistor material (28) reaches a preset value, disconnecting the first pipe (34); Step 4: Fill the third layer: Step 4.1, driving the movable frame (5) to move from the E end to the F end of the furnace shell (3); Step 4.2, when step 4.1 is being performed, all the second pipes (35) are first connected, and the insulation material in the second silo (23) flows from all the second pipes (35) into the third layer (C) of the furnace shell (3) to form the top insulation material (27), and the moving frame (5) is driven to travel a distance T; Step 4.3, after the moving frame 5 has traveled a distance T, all the second pipes (35) are closed, at least one first pipe (34) located in the middle of the partition (19) is opened, and the second pipes (35) at the remaining positions are opened at the same time, the resistance material in the first silo (10) flows into the third layer (C) of the furnace shell (3) to form the air vents (26), and at the same time, the insulation material in the second silo (23) flows into the third layer (C) of the furnace shell (3) to form the top insulation material (27), and the moving frame (5) is driven to travel a distance T; Step 4.4, after the moving frame (5) has traveled a distance T, the first pipe (34) is closed, all the second pipes (35) are opened, and the insulation material in the second silo (23) flows from all the second pipes (35) into the third layer (C) of the furnace shell (3) to form the top insulation material (27), and the moving frame (5) is driven to travel a distance T; Step 4.5, when the mobile frame (5) travels a distance T again, repeat step 4.3 until the mobile frame (5) travels a distance T; Repeat steps 4.2-4.5; Step 4.6, when the filling height of the top insulation material (27) and the air vents (26) reaches the preset height value of the third layer (C), the first pipe (34) and the second pipe (35) are disconnected, and the moving frame (5) is driven to return from the F end of the furnace shell (3) to the E end; Step 5: Fill the fourth layer: Step 5.1, driving the movable frame (5) to move from the E end to the F end of the furnace shell (3); Step 5.2, when step 5.1 is being performed, the first pipe (34) corresponding to the position of the vent hole (26) formed in step 4 is kept closed, and the second pipes (35) at the remaining positions are opened, so that the insulation material in the second silo (23) flows into the fourth layer (D) of the furnace shell (3) to form the top insulation material (27), and the moving frame (5) is driven to travel a distance T; Step 5.3, after the mobile frame 5 has traveled a distance T, the first pipe (34) corresponding to the position of the air hole (26) formed in step 4 is opened, the resistor material in the first silo (10) flows into the fourth layer (D) of the furnace shell (3) to form the air hole (26), and the insulation material in the second silo (23) flows into the side of the air hole (26) of the furnace shell (3) to form the top insulation material (27); the mobile frame (5) is driven to travel a distance T; Step 5.4, when the mobile frame (5) travels a distance T again, repeat steps 5.2-5.3; Step 5.5, when the filling height of the air holes (26) and the heat-insulating material (27) reaches the preset height value of the fourth layer (D), the first pipe (34) and the second pipe (35) are disconnected; and the loading is completed.

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