Graphitization furnace packing device

Abstract

The utility model relates to a kind of graphitization furnace filling device, including along the length direction of graphitization furnace moving trolley, the trolley is set in and along the width direction of graphitization furnace moving trolley, trolley is provided with bunker, trolley is suspended and is provided with the buffer bin that can move up and down relative to trolley, buffer bin is provided with the feed pipe that communicates buffer bin inner chamber, the feed pipe is connected with the discharge port of bunker lower end by telescopic pipe, buffer bin lower end discharge port connects unloading pipe, unloading pipe is worn and is loaded with the unloading spiral that can rotate relative to unloading pipe, material is extruded by unloading spiral, material is transported to graphitization furnace, the filling of graphitization furnace material is realized, reduce loading labor intensity, spiral extrusion can discharge air in material, make the material compact of filling, reduce dust pollution, improve filling quality.

Description

Technical Field

[0001] This utility model belongs to the technical field of graphitization furnace charging equipment, specifically relating to a graphitization furnace packing device. Background Technology

[0002] Graphitization furnaces are core thermal equipment for achieving the key conversion of carbon to graphite. They are widely used in the production of high-end products such as lithium battery anode materials, photovoltaic thermal field materials, and ultra-high power graphite electrodes, and are an important infrastructure for promoting the upgrading of new energy and new materials industries.

[0003] Graphitization furnaces typically have a rectangular furnace body constructed of refractory material. Inside the furnace body is a furnace chamber filled with resistance material. A crucible for filling carbon powder is embedded within the resistance material. The top of the furnace chamber is covered with resistance material and insulating material. Conductive electrode rods connected to a power source are installed at both ends of the furnace body. When the circuit is turned on, the resistance material inside the furnace chamber heats up, thereby heating the carbon powder material in the crucible and converting the carbon powder material into graphite.

[0004] When using a graphitization furnace, it is necessary to first fill the furnace chamber with resistance material, carbon powder, and insulation material. The resistance material in the furnace chamber can be used multiple times after a single filling, with a low replacement frequency and easy filling. However, the carbon powder in the crucible and the resistance material and insulation material on the top of the furnace body require frequent filling and are more difficult to fill. Currently, manual filling is commonly used. This involves using overhead cranes to transport materials to the filling area in ton bags, then cutting the bags open and manually pushing the materials to the appropriate areas. This method is inefficient, labor-intensive, generates significant dust pollution, causes frequent damage to ton bags, and results in high production costs. Furthermore, manual filling is prone to uneven and loose filling, leading to poor filling quality. Utility Model Content

[0005] In summary, in order to overcome the shortcomings of the existing technology, this utility model provides a graphitization furnace filling device. The filling device is installed above the graphitization furnace and can move along the length and width of the graphitization furnace. It uses a spiral extrusion method to transport materials into the graphitization furnace, realizes the filling of materials in the graphitization furnace, reduces the labor intensity during filling, and the spiral extrusion can expel air from the materials, making the filled materials compact, reducing dust pollution, and improving the filling quality.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: A graphitization furnace packing device includes: a bridge frame mounted on the graphitization furnace and arranged along the length of the furnace; a large trolley mounted on the bridge frame and moving along the length of the furnace; and a smaller trolley mounted on the large trolley and moving along the width of the furnace, the smaller trolley being equipped with a hopper. The trolley is equipped with a suspension chamber that can move up and down relative to the trolley. The buffer chamber is equipped with a feed pipe that communicates with the inner cavity of the buffer chamber. The feed pipe is connected to the discharge port at the lower end of the chamber via a telescopic pipe. The discharge port at the lower end of the buffer chamber is connected to a discharge pipe. The unloading pipe is fitted with an unloading screw that can rotate relative to the unloading pipe, and the buffer chamber is equipped with a drive device to drive the unloading screw to rotate.

[0007] Furthermore, the buffer chamber includes a barrel body, a platform base fixedly connected to the upper end of the barrel body, and a funnel-shaped discharge hopper fixedly connected to the lower end of the barrel body. The platform base is provided with a feed inlet communicating with the inner cavity of the barrel body. The feed pipe is connected to the feed inlet. The lower opening of the discharge hopper is a discharge outlet, and a discharge pipe is connected to the discharge outlet.

[0008] Furthermore, two funnel-shaped discharge hoppers are fixedly connected to the lower end of the barrel, and the discharge ports of the two discharge hoppers are respectively connected to two unloading pipes.

[0009] Furthermore, the lower end of the unloading screw is connected to the lower end of the unloading pipe and can rotate relative to the unloading pipe. The unloading screw is arranged along the unloading pipe, and its upper end passes through the buffer chamber and is connected to the drive device set at the upper end of the buffer chamber.

[0010] Furthermore, the unloading pipe includes a discharge pipe and a degassing pipe connected in sequence. The upper end of the discharge pipe is connected to the discharge port at the lower end of the buffer chamber, and the lower end of the discharge pipe is connected to the upper end of the degassing pipe. The degassing pipe includes an inner filter pipe, a middle filter pipe, and an outer pipe arranged in sequence from the inside to the outside. The filter hole diameter of the inner filter pipe is larger than that of the middle filter pipe. There is a gap between the outer pipe and the middle filter pipe. An exhaust pipe communicating with the gap is provided on the outer pipe. One end of the exhaust pipe is connected to the outer pipe, and the other end of the exhaust pipe is bent upward to discharge air.

[0011] Furthermore, the buffer chamber is provided with an exhaust pipe that connects to the inner cavity of the buffer chamber. One end of the exhaust pipe is connected to the buffer chamber, and the other end of the exhaust pipe is connected to the air inlet of the dust collector. The air outlet of the dust collector is connected to the air inlet of the vacuum pump through the air outlet pipe, and the air outlet of the vacuum pump is vented.

[0012] Furthermore, the dust collector includes a hollow dust collection cylinder, and a partition is provided inside the dust collection cylinder. The partition divides the inner cavity of the dust collection cylinder into an air outlet chamber located above the partition and a dust collection chamber located below the partition. A filter cartridge is suspended on the partition. The dust collection chamber and the air outlet chamber are connected through the inner cavity of the filter cartridge and filter holes. The air inlet of the dust collector is connected to the dust collection chamber, and the air outlet of the dust collector is connected to the air outlet chamber.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model is installed above the graphitization furnace and can move along the length and width of the graphitization furnace. It uses a spiral extrusion method to transport materials into the graphitization furnace, realizes the filling of materials in the graphitization furnace, reduces the labor intensity during filling, and the spiral extrusion can expel air from the materials, making the filled materials compact, reducing dust pollution, and improving the filling quality.

[0015] 2. This utility model has a buffer chamber. The material in the hopper first enters the buffer chamber for buffering, and then enters the graphitization furnace along the discharge pipe. The buffer chamber can ensure the continuity of material loading in the graphitization furnace. The lower end of the buffer chamber has a funnel-shaped discharge hopper. The funnel-shaped discharge hopper can guide the material in the buffer chamber to the discharge pipe, ensuring that the material can smoothly enter the graphitization furnace along the discharge pipe.

[0016] 3. This utility model features a discharge screw that can rotate relative to the discharge pipe and buffer chamber. The rotation of the discharge screw pushes and compresses the powdery material, making the loose material compact and thus increasing the density of the material entering the graphitization furnace, thereby improving the filling quality. Simultaneously, the discharge pipe of this utility model has a degassing pipe. During the material pushing process, air in the material pushed by the discharge screw is discharged along the degassing pipe under the pushing and compressing action, preventing air from entering the graphitization furnace and further improving the compactness of the material entering the furnace. The degassing pipe has an inner screen and a middle screen. When the degassing pipe exhausts gas, the gas passes through the inner and middle screens for double-layer filtration, effectively removing dust from the discharged gas, reducing dust overflow, and minimizing dust pollution.

[0017] 4. The buffer chamber of this utility model is equipped with a vacuum pump and a dust collector to extract negative pressure in the buffer chamber and the unloading pipe. By extracting negative pressure in the buffer chamber and the unloading pipe, the material in the silo enters the buffer chamber under its own weight and negative pressure. At the same time, the negative pressure in the buffer chamber and the unloading pipe can reduce the overflow of dust and reduce dust pollution.

[0018] 5. The unloading pipe and / or buffer hopper of this utility model are equipped with a vibration component. Vibration can make the material in the buffer hopper and unloading pipe fall smoothly, avoiding material retention in the buffer hopper and unloading pipe. At the same time, vibration can also prevent the material in the buffer hopper and unloading pipe from clumping. When the vibration component is set at the lower end of the unloading pipe, the vibration of the vibration component can be transmitted to the material already filled in the graphitization furnace. This vibration can compact the material and improve the compactness of the material filling.

[0019] 6. The buffer chamber of this utility model can move up and down relative to the trolley. When loading materials into the graphitization furnace, the buffer chamber moves downward so that the lower end of the unloading pipe under the buffer chamber is as close as possible to the loading position of the graphitization furnace, thereby reducing the falling height of the material into the graphitization furnace, reducing dust generated by the falling impact, and reducing dust pollution.

[0020] 7. This utility model has a simple structure, is easy to use, has low cost and is easy to operate. It can effectively realize the material filling of graphitization furnace, reduce the labor intensity during graphitization furnace filling, improve filling efficiency, ensure filling quality, and at the same time reduce dust overflow and protect the environment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 A schematic diagram of the left-side view structure; Figure 3 This is a schematic diagram of the structure of the buffer bin, unloading pipe, and unloading screw of this utility model; Figure 4 For the present utility model Figure 3 A schematic diagram of the left-side view structure; Figure 5 This is a three-dimensional structural diagram of the buffer compartment of this utility model; Figure 6 This is a cross-sectional view of the degassing tube of this utility model. Figure 7 This is a schematic diagram of the dust collector of this utility model; Figure 8 This utility model Figure 7 A schematic diagram of the left-side view structure; Figure 9 This is a cross-sectional structural diagram of the dust collector of this utility model.

[0022] Graphitization furnace 1, bridge frame 2, trolley 3, trolley 4, hopper 5, buffer hopper 6, feed pipe 7, discharge pipe 8, discharge screw 9, drive device 10, vibration assembly 11, exhaust pipe 12, dust collector 13, vacuum pump 14, exhaust valve 15, lifting hydraulic cylinder 16, distance sensor 17, barrel 61, platform base 62, discharge hopper 63, discharge pipe 81, degassing pipe 82, exhaust pipe 83, inner filter pipe 821, middle filter pipe 822, outer pipe 823, dust collector cylinder 131, baffle 132, exhaust chamber 133, dust collection chamber 134, filter cartridge 135, backflush pipe 136, backflush valve 137, exhaust pipe 138. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] like Figures 1-9 As shown, a graphitization furnace packing device includes: a bridge frame 2 mounted on the graphitization furnace 1 and arranged along the length of the graphitization furnace 1; a large trolley 3 mounted on the bridge frame 2 and moving along the length of the graphitization furnace 1; a small trolley 4 mounted on the large trolley 3 and moving along the width of the graphitization furnace 1; a hopper 5 mounted on the small trolley 4; a buffer chamber 6 suspended on the small trolley 4; and a lifting hydraulic cylinder 16 mounted on the small trolley 4. The telescopic rod of the lifting hydraulic cylinder 16 is connected to the buffer chamber 6, and the vertical movement of the buffer chamber 6 relative to the small trolley 4 is achieved by the extension and retraction of the telescopic rod. In practice, four lifting hydraulic cylinders 16 can be mounted on the small trolley 4, and the telescopic rods of the four lifting hydraulic cylinders 16 are respectively connected to the four corners of the upper end of the buffer chamber 6, and the telescopic rods of the four lifting hydraulic cylinders 16 extend and retract synchronously.

[0025] The buffer chamber 6 includes a barrel 61, a platform base 62 fixedly connected to the upper end of the barrel 61, and a funnel-shaped discharge hopper 63 fixedly connected to the lower end of the barrel 61. The platform base 62 has an inlet communicating with the inner cavity of the barrel 61. The inlet is connected to the lower end of an inlet pipe 7. The upper end of the inlet pipe 7 is connected to the lower outlet of a hopper 5 via a telescopic pipe. A closed-loop unloader and a discharge valve are installed at the lower outlet of the hopper 5. The lower end of the discharge hopper 63 has an outlet for the buffer chamber 6, which is connected to a discharge pipe 8. In implementation, two parallel funnel-shaped discharge hoppers 63 can be installed at the lower end of the barrel 61, with the outlets of the two hoppers 63 respectively connected to two discharge pipes 8. A vibration assembly 11 is installed on the buffer chamber 6 and / or the discharge pipe 8. In implementation, the vibration assembly 11 is a hydraulic high-frequency vibrator. A distance sensor 17 is installed at the lower end of the unloading pipe 8. The distance sensor 17 is used to detect the distance between the lower end of the unloading pipe 8 and the material filling surface inside the graphitization furnace 1. When the buffer chamber 6 moves downward, the distance detection helps to prevent the unloading pipe 8 from colliding with the graphitization furnace 1. At the same time, it can also provide a suitable falling height for the material and reduce the dust generated by the impact of the falling material.

[0026] The unloading pipe 8 is fitted with an unloading screw 9 that can rotate relative to the unloading pipe 8. The lower end of the unloading screw 9 is connected to the lower end of the unloading pipe 8 and can rotate relative to the unloading pipe 8. The unloading screw 9 is arranged along the unloading pipe 8, and its upper end passes through the buffer chamber 6 and is connected to the drive device 10 set at the upper end of the buffer chamber 6.

[0027] The unloading pipe 8 includes a discharge pipe 81 and a degassing pipe 82 connected in sequence. The upper end of the discharge pipe 81 is connected to the lower discharge port of the buffer chamber 6, and the lower end of the discharge pipe 81 is connected to the upper end of the degassing pipe 82. The degassing pipe 82 includes an inner filter pipe 821, a middle filter pipe 822 and an outer pipe 823 arranged in sequence from the inside to the outside. The diameter of the filter holes of the inner filter pipe 821 is larger than that of the middle filter pipe 822. There is a gap between the outer pipe 823 and the middle filter pipe 822. An exhaust pipe 83 communicating with the gap is provided on the outer pipe 823. One end of the exhaust pipe 83 is connected to the outer pipe 823, and the other end of the exhaust pipe 83 is bent upward to discharge air.

[0028] In implementation, the unloading pipe 8 includes a discharge pipe 81 and two degassing pipes 82. The upper end of the discharge pipe 81 is connected to the discharge port at the lower end of the discharge hopper 63 of the buffer chamber 6. The lower end of the discharge pipe 81 is connected to the upper end of the first degassing pipe 82. The lower end of the first degassing pipe 82 is connected to the upper end of the second degassing pipe 82. The lower end of the second degassing pipe 82 is connected to a vibrating plate. The lower end of the inner cavity of the second degassing pipe 82 is provided with a support for supporting the unloading screw 9. The lower end of the unloading screw 9 is connected to the support and can rotate relative to the support.

[0029] The buffer chamber 6 is equipped with an exhaust pipe 12 that connects to the inner cavity of the buffer chamber 6. One end of the exhaust pipe 12 is connected to the buffer chamber 6, and the other end is connected to the air inlet of the dust collector 13. An exhaust valve 15 is installed on the exhaust pipe 12. The air outlet of the dust collector 13 is connected to the air inlet of the vacuum pump 14 through an air outlet pipe 138, and the air outlet of the vacuum pump 14 is vented. The vacuum pump 14 is a waterless vacuum pump 14. The dust collector 13 includes a hollow dust collector cylinder 131. A partition 132 is provided inside the dust collector cylinder 131, which divides the inner cavity of the dust collector cylinder 131 into an air outlet chamber 133 located above the partition 132 and a dust collection chamber 134 located below the partition 132. A filter cartridge 135 is suspended on the partition 132. The dust collection chamber 134 and the air outlet chamber 133 are connected through the inner cavity of the filter cartridge 135 and the filter holes. The air inlet of the dust collector 13 is connected to the dust collection chamber 134, and the air outlet of the dust collector 13 is connected to the air outlet chamber 133. The dust collector cylinder 131 is provided with a backflush pipe 136. One end of the backflush pipe 136 is located in the air outlet chamber 133 and inserted into the filter cartridge 135. The other end of the backflush pipe 136 is located outside the dust collector cylinder 131 and is connected to the air outlet of the backflush pump. The air inlet of the backflush pump is connected to the atmosphere. The backflush pipe 136 is provided with a backflush valve 137, which is a pulse solenoid valve.

[0030] In use, start the large trolley 3 and the small trolley 4, move the unloading pipe 8 to directly above the filling part of the graphitization furnace 1, and then start the lifting hydraulic cylinder 16 on the small trolley 4. The telescopic rod of the lifting hydraulic cylinder 16 extends and pushes the buffer chamber 6 downward, thereby moving the unloading pipe 8 downward so that the lower outlet of the unloading pipe 8 is close to the filling part. After the unloading pipe 8 moves downward into place, stop the lifting hydraulic cylinder 16 and maintain the height.

[0031] Start the vacuum pump 14 to extract negative pressure from the buffer chamber 6 and the discharge pipe 8. Open the discharge valve on the lower outlet of the silo 5 and start the windproof discharger. The powdery material in the silo 5 enters the buffer chamber 6 along the feed pipe 7, and then enters the discharge pipe 8 along the funnel-shaped discharge hopper 63. The funnel-shaped structure of the discharge hopper 63 activates the drive device 10 at the upper end of the buffer chamber 6, and starts the vibration assembly 11. The drive device 10 drives the discharge screw 9 to rotate. The powdery material in the buffer chamber 6 moves downward along the discharge pipe 8 under the pushing action of the discharge screw 9. During the pushing process, the discharge screw... The spiral blades of the screw 9 compress the material, making it denser. As the material is pushed downwards along the discharge pipe 8, it passes through the degassing pipe 82. Under the compression of the discharge screw 9, the air in the material passes through the sieve holes of the inner and middle sieves of the degassing pipe 82, entering the gap between the middle sieve and the outer pipe 823, and then is discharged through the exhaust pipe 83. The air is filtered by the inner and middle sieves as it passes through them, effectively removing dust from the discharged gas and reducing dust spillage and pollution. The degassed material flows out from the lower opening of the discharge pipe 8 into the graphitization furnace 1, thus loading the graphitization furnace 1. The moving trolley 3 and trolley 4 move the discharge pipe 8 along the length and width of the graphitization furnace 1, continuously loading material into the furnace.

[0032] During the process of vacuum pump 14 extracting negative pressure in buffer chamber 6 and unloading pipe 8, some powdery material enters dust collector 13 along with air through suction pipe 12. After the powdery material is filtered by filter cartridge 135 in dust collector 13, clean air enters air outlet chamber 133 and is then discharged through air outlet of dust collector 13. When the filter holes of filter cartridge 135 are blocked by material, backflush pump is started, backflush valve 137 is opened, and air is blown into filter cartridge 135 through backflush pipe 136 to backflush the sieve holes of filter cartridge 135. The powdery material filtered by filter cartridge 135 and the backflush powdery material settle in dust collection chamber 134 and fall back into buffer chamber 6 along suction pipe 12.

[0033] After the material in graphitization furnace 1 is filled, turn off the drive device 10, turn off the vacuum pump 14 and the vibration assembly 11, and then remove the trolley 3 and the trolley 4.

[0034] In the implementation of this utility model, it is not necessary to install the bridge frame 2 on the graphitization furnace 1. Instead, the trolley 3 can be moved by the overhead crane installed in the workshop to move the unloading pipe 8 along the length and width of the graphitization furnace 1.

[0035] It should be noted that the above-described embodiments are illustrative of the technical solution of this utility model and not limiting. Equivalent substitutions or other modifications made by those skilled in the art based on the prior art, as long as they do not exceed the concept and scope of the technical solution of this utility model, should be included within the scope of the claims of this utility model.

Claims

1. A graphitization furnace packing device, characterized in that: It includes a bridge (2) that is mounted on the graphitization furnace (1) and arranged along the length of the graphitization furnace (1), a large trolley (3) that moves along the length of the graphitization furnace (1) on the bridge (2), a small trolley (4) that is mounted on the large trolley (3) and moves along the width of the graphitization furnace (1), and a hopper (5) on the small trolley (4). The trolley (4) is equipped with a buffer chamber (6) that can move up and down relative to the trolley (4). The buffer chamber (6) is provided with a feed pipe (7) that connects to the inner cavity of the buffer chamber (6). The feed pipe (7) is connected to the discharge port at the lower end of the hopper (5) through a telescopic pipe. The discharge port at the lower end of the buffer chamber (6) is connected to a discharge pipe (8). The unloading pipe (8) is fitted with an unloading screw (9) that can rotate relative to the unloading pipe (8), and the buffer chamber (6) is provided with a drive device (10) that drives the unloading screw (9) to rotate.

2. The graphitization furnace packing device according to claim 1, characterized in that: The buffer chamber (6) includes a barrel (61), a platform seat (62) fixedly connected to the upper end of the barrel (61), and a funnel-shaped discharge hopper (63) fixedly connected to the lower end of the barrel (61). The platform seat (62) is provided with a feed port that communicates with the inner cavity of the barrel (61). The feed pipe (7) is connected to the feed port. The lower opening of the discharge hopper (63) is the discharge port. The unloading pipe (8) is connected to the discharge port.

3. The graphitization furnace packing device according to claim 2, characterized in that: The lower end of the barrel (61) is fixedly connected to two funnel-shaped discharge hoppers (63), and the discharge ports of the two discharge hoppers (63) are respectively connected to two unloading pipes (8).

4. The graphitization furnace packing device according to claim 1, characterized in that: The lower end of the unloading screw (9) is connected to the lower end of the unloading pipe (8) and can rotate relative to the unloading pipe (8). The unloading screw (9) is arranged along the unloading pipe (8), and its upper end passes through the buffer chamber (6) and is connected to the drive device (10) set at the upper end of the buffer chamber (6).

5. The graphitization furnace packing device according to any one of claims 1 to 4, characterized in that: The unloading pipe (8) includes a discharge pipe (81) and a degassing pipe (82) connected in sequence. The upper end of the discharge pipe (81) is connected to the lower end of the discharge port of the buffer chamber (6), and the lower end of the discharge pipe (81) is connected to the upper end of the degassing pipe (82). The degassing pipe (82) includes an inner filter pipe (821), a middle filter pipe (822) and an outer pipe (823) arranged in sequence from the inside to the outside. The diameter of the filter hole of the inner filter pipe (821) is larger than the diameter of the filter hole of the middle filter pipe (822). There is a gap between the outer pipe (823) and the middle filter pipe (822). An exhaust pipe (83) connected to the gap is provided on the outer pipe (823). One end of the exhaust pipe (83) is connected to the outer pipe (823), and the other end of the exhaust pipe (83) is bent upward to discharge air.

6. The graphitization furnace packing device according to any one of claims 1 to 4, characterized in that: The buffer chamber (6) is provided with an exhaust pipe (12) that connects to the inner cavity of the buffer chamber (6). One end of the exhaust pipe (12) is connected to the buffer chamber (6), and the other end of the exhaust pipe (12) is connected to the air inlet of the dust collector (13). The air outlet of the dust collector (13) is connected to the air inlet of the vacuum pump (14) through the air outlet pipe (138). The air outlet of the vacuum pump (14) is emptied.

7. The graphitization furnace packing device according to claim 6, characterized in that: The dust collector (13) includes a hollow dust collector cylinder (131). A partition (132) is provided inside the dust collector cylinder (131). The partition (132) divides the inner cavity of the dust collector cylinder (131) into an air outlet chamber (133) located above the partition (132) and a dust collection chamber (134) located below the partition (132). A filter cartridge (135) is suspended on the partition (132). The dust collection chamber (134) and the air outlet chamber (133) are connected through the inner cavity and filter holes of the filter cartridge (135). The air inlet of the dust collector (13) is connected to the dust collection chamber (134), and the air outlet of the dust collector (13) is connected to the air outlet chamber (133).

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