A calcining apparatus for producing pressure-resistant cathode carbon

Abstract

This utility model relates to the field of cathode carbon production technology, and in particular to a calcination device for producing pressure-resistant cathode carbon, including a sintering furnace body with guide rails installed inside. The advantages of this utility model are: by setting up the sintering furnace body, an external traction device pulls the moving platform holding the cathode carbon and transfers it directly below the barrier cover. Four first hydraulic cylinders extend, pushing the barrier cover to cooperate with the support platform. Simultaneously, the drive motor is energized, causing air to circulate along the two connecting pipes and the barrier cover, and into the heat exchange tubes and heat exchange plates. At the same time, a liquid pump is energized, pumping the liquid medium inside the second storage tank to the heat exchange tubes for heat exchange, raising the temperature of the liquid medium, which is then stored in the first storage tank, thus achieving heat recovery and accelerating the cooling rate of the cathode carbon. The overall structure is simple and effectively solves the problems existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of cathode carbon production technology, and in particular to a calcination device for producing pressure-resistant cathode carbon. Background Technology

[0002] Cathode carbon typically refers to carbon products made primarily from non-metallic solid materials such as carbon and graphite, with the addition of binders. It is mainly used as the cathode in aluminum electrolysis cells. In aluminum electrolysis production, cathode carbon plays a crucial role, serving as the cathode of the aluminum electrolysis cell, responsible for conducting electricity, holding molten aluminum, and storing electrolytes. Its performance directly affects the operating efficiency, energy consumption, and service life of the aluminum electrolysis cell.

[0003] In the production of cathode carbon, it is generally calcined in a special sintering furnace. However, after the cathode carbon is sintered, it needs to be taken out for cooling. At this time, the remaining heat on the cathode carbon will be naturally dissipated, resulting in energy waste. Based on this, a calcination device for the production of pressure-resistant cathode carbon is proposed to recover heat and solve the above problem. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a calcination device for the production of pressure-resistant cathode carbon, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a calcination apparatus for producing pressure-resistant cathode carbon, including a sintering furnace body. Guide rails are installed inside the sintering furnace body. Two guide rails extend horizontally outwards. Support platforms are installed on the outer walls of the two guide rails. Support frames are installed at the four corners of the support platforms. Four first hydraulic cylinders are installed at the top of the support frames, and a barrier cover is installed at the output ends of the four cylinders. Connecting pipes are installed at both ends of the barrier cover, and the ends of both pipes are bent and connected to the top of the barrier cover. A bulge area is provided between adjacent ends of two connecting pipes. A drive motor is installed on the outer wall of one connecting pipe, and its output end extends into the two bulge areas. The output end of the drive motor is equipped with multiple fan blades. A heat exchange tube is installed on the side of the barrier cover near the inner wall of a connecting pipe, and it is bent and coiled upwards. Multiple heat exchange fins are installed on the outer wall of the heat exchange tube. Both ends of the heat exchange tube penetrate the barrier cover, and both ends are equipped with connecting pipes. A first storage tank and a second storage tank are arranged in parallel on one side of the support platform. A liquid pump is installed on the top of the second storage tank. The output end of the liquid pump is connected to a connecting pipe, and the other connecting pipe extends into the interior of the first storage tank.

[0006] Preferably, one side of the sintering furnace body has an outlet for the cathode carbon to enter and exit. A second hydraulic cylinder and a sealing door are installed on the side of the sintering furnace body near the outlet. The top surface of the sealing door is fixedly connected to the output end of the second hydraulic cylinder. By using this scheme, it is convenient to control the extension or retraction of the second hydraulic cylinder to push the sealing door to move vertically, thereby realizing the opening and closing of the outlet position of the sintering furnace body.

[0007] Preferably, in any of the above solutions, a sealing gasket is installed between the adjacent sides of the two bulge areas, and the edges of the two are fixedly connected by multiple fasteners. This solution facilitates the connection between the two connecting pipes, and then the drive motor is powered on to drive multiple fan blades to rotate, pushing the air to circulate along the inside of the two connecting pipes and the barrier cover. This achieves the transfer of heat from the cathode carbon to the liquid medium in the heat exchange tube, facilitating heat recovery and accelerating the cooling of the cathode carbon.

[0008] Preferably, in any of the above schemes, multiple sleepers are installed on the outer wall of the two guide rails away from the sintering furnace body to support the guide rails. By using this scheme, it is easy to provide uniform support for the two guide rails, and it is easy for the moving platform to move to the end position of the guide rails, which facilitates the handling of cathode carbon.

[0009] Preferably, the inner wall of the barrier cover and the outer wall of the two connecting pipes are both equipped with a heat insulation layer. This method facilitates heat isolation, reduces heat loss from the air through the two connecting pipes, and minimizes heat loss. The barrier cover can completely enclose several cathode carbons, allowing air to circulate within the two connecting pipes and the barrier cover, thus enabling the air to carry heat to heat the heat exchange tubes.

[0010] Preferably, in any of the above solutions, the bend of the heat exchange tube is fixedly connected to the inner wall of the barrier cover by a pipe clamp, and multiple heat exchange plates are linearly arranged on the outer wall of the heat exchange tube, with gaps between their sides and the outer wall of the insulation layer. This solution facilitates the installation of the heat exchange tube on the inner wall of the barrier cover by the pipe clamp, stabilizes the position of the heat exchange tube, and facilitates the overall disassembly, maintenance, or replacement of the heat exchange tube in the future. Multiple heat exchange plates can increase the contact area with the flowing air and improve the heat exchange rate.

[0011] This utility model has the following advantages:

[0012] 1. This calcination apparatus for producing pressure-resistant cathode carbon involves setting up a sintering furnace body. An external traction device pulls a moving platform containing the cathode carbon and moves it directly below a barrier cover. Four first hydraulic cylinders extend, pushing the barrier cover to cooperate with the support platform. Simultaneously, a drive motor is energized, causing air to circulate along two connecting pipes and the barrier cover, passing through heat exchange tubes and heat exchange plates. At the same time, a liquid pump is energized, pumping the liquid medium inside the second storage tank to the heat exchange tubes for heat exchange, raising the temperature of the liquid medium. The liquid medium is then stored in the first storage tank, thereby achieving heat recovery and accelerating the cooling rate of the cathode carbon. The overall structure is simple and effectively solves the problems existing in the prior art.

[0013] 2. The calcination device for producing pressure-resistant cathode carbon uses heat exchange tubes with a coiled and folded structure inside the barrier to increase the flow time of the liquid medium inside the barrier. Multiple heat exchange plates increase the contact area with the flowing air, facilitating sufficient heat exchange between the liquid medium and the flowing hot air, thus improving the conversion efficiency. Two guide rails facilitate the movement of the platform to move several cathode carbons. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 3 This is a first-view structural schematic diagram of the sintering furnace body of this utility model;

[0017] Figure 4 This is a second-view structural schematic diagram of the sintering furnace body of this utility model;

[0018] Figure 5 This is a schematic diagram of the barrier cover structure of this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the barrier cover of this utility model;

[0020] Figure 7 This utility model Figure 6 A magnified structural diagram of point A in the middle.

[0021] In the diagram: 1-Sintering furnace body, 2-Connecting pipe, 3-Support platform, 4-Barrier cover, 5-Guide rail, 6-First storage tank, 7-Second storage tank, 8-Liquid pump, 9-Drive motor, 10-Bulging area, 11-First hydraulic cylinder, 12-Support frame, 13-Second hydraulic cylinder, 14-Sealed door, 15-Fan blade, 16-Heat exchange tube, 17-Moving platform, 18-Heat exchange plate, 19-Insulation layer. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0023] like Figures 1 to 7 As shown, a calcination apparatus for producing pressure-resistant cathode carbon includes a sintering furnace body 1. Inside the sintering furnace body 1, guide rails 5 are installed. Moving platforms 17, which move along the length of the guide rails 5, are installed on two guide rails 5. The two guide rails 5 extend horizontally outwards. Support platforms 3 are installed on the outer walls of the two guide rails 5. Support frames 12 are installed at the four corners of the support platforms 3. Four first hydraulic cylinders 11 are installed at the top of the support frames 12, and their output ends are connected by a barrier cover 4. Connecting pipes 2 are installed at both ends of the barrier cover 4, and the ends of both pipes are bent and connected to the top of the barrier cover 4. A bulge area 10 is provided between adjacent ends of the two connecting pipes 2. A drive motor 9 is installed on the outer wall of one connecting pipe 2, and its output end extends into the two bulge areas 10. Multiple fan blades 15 are installed at the output end of the drive motor 9. A heat exchange tube 16 is installed on the side of the barrier cover 4 near the inner wall of a connecting pipe 2, and it is bent and coiled upward. Multiple heat exchange plates 18 are installed on the outer wall of the heat exchange tube 16. Both ends of the heat exchange tube 16 pass through the barrier cover 4, and both ends are equipped with connecting pipes. A first storage tank 6 and a second storage tank 7 are arranged in parallel on one side of the support platform 3. A liquid pump 8 is installed on the top of the second storage tank 7. The output end of the liquid pump 8 is connected to a connecting pipe, and the other connecting pipe extends into the interior of the first storage tank 6.

[0024] The sintering furnace body 1 has an outlet for cathode carbon to enter and exit on one side. A second hydraulic cylinder 13 and a sealing door 14 are installed on the side of the sintering furnace body 1 near the outlet. The top surface of the sealing door 14 is fixedly connected to the output end of the second hydraulic cylinder 13. As an optional technical solution of this utility model, it is convenient to control the extension or retraction of the second hydraulic cylinder 13 to push the sealing door 14 to move vertically, thereby realizing the opening and closing of the outlet position of the sintering furnace body 1.

[0025] A sealing gasket is installed between the adjacent sides of the two bulge areas 10, and the edges of the two are fixedly connected by multiple fasteners. As an optional technical solution of this utility model, this facilitates the connection of the two connecting pipes 2, and then the drive motor 9 is powered on to drive multiple fan blades 15 to rotate, pushing the air to circulate along the inside of the two connecting pipes 2 and the barrier cover 4, thereby transferring the heat of the cathode carbon to the liquid medium in the heat exchange tube 16, facilitating heat recovery, and accelerating the cooling of the cathode carbon.

[0026] Multiple sleepers are installed on the outer wall of the two guide rails 5 away from the sintering furnace body 1 to support the guide rails 5. As an optional technical solution of this utility model, this facilitates the uniform support of the two guide rails 5, and makes it easy for the moving platform 17 to move to the end position of the guide rails 5, so as to facilitate the loading and unloading of cathode carbon.

[0027] The inner wall of the barrier cover 4 and the outer wall of the two connecting pipes 2 are both equipped with a heat insulation layer 19. As an optional technical solution of this utility model, this facilitates the blocking of heat, reduces the heat loss from the air to the outside through the two connecting pipes 2, and reduces heat loss. The barrier cover 4 can completely cover several cathode carbons, which facilitates the air to form a circulation flow inside the two connecting pipes 2 and the barrier cover 4, thereby facilitating the air to carry heat to heat the heat exchange tube 16.

[0028] The bend of the heat exchange tube 16 is fixedly connected to the inner wall of the barrier cover 4 by pipe clamps. Multiple heat exchange plates 18 are linearly arranged on the outer wall of the heat exchange tube 16, and a gap is left between their sides and the outer wall of the insulation layer 19. As an optional technical solution of this utility model, this makes it easy to install the heat exchange tube 16 on the inner wall of the barrier cover 4 by pipe clamps, stabilize the position of the heat exchange tube 16, and facilitate the overall disassembly, maintenance or replacement of the heat exchange tube 16 in the future. Multiple heat exchange plates 18 can increase the contact area with the flowing air and improve the heat exchange rate.

[0029] This pressure-resistant cathode carbon production calcination apparatus requires the following steps during use:

[0030] 1) When in use, place the cathode carbon to be sintered on the moving platform 17, and push it into the interior of the sintering furnace body 1 along the guide rail 5 by the external traction equipment, lower the height of the sealing door 14, and block the outlet of the sintering furnace body 1.

[0031] 2) After the sintering furnace body 1 has been running for a certain period of time, the second hydraulic cylinder 13 shortens its movement to open the closed door 14;

[0032] 3) The mobile platform 17 is moved by an external traction device to the area directly below the barrier cover 4;

[0033] 4) The four first hydraulic cylinders 11 descend synchronously, so that the barrier cover 4 completely covers the moving platform 17 and the cathode carbon.

[0034] 5) When the drive motor 9 is powered on, it drives multiple fan blades 15 to rotate, thereby pushing the air to circulate along the barrier cover 4 and the two connecting pipes 2;

[0035] 6) The temperature of the flowing air increases after passing through the cathode carbon, and at the same time, the flowing air heats the heat exchange tube 16 and the heat exchange plate 17.

[0036] 7) The liquid pump 8 is powered on and runs, so that the liquid medium inside the second storage tank 7 enters the first storage tank 6 along the heat exchange tube 16.

[0037] 8) The flowing high-temperature air heats the liquid medium and stores it inside the first storage tank 6, and can also be used to provide external heating, etc.

[0038] In summary, during operation, the user sets up the sintering furnace body 1, and uses external traction equipment to pull the moving platform 17 containing the cathode carbon, transferring it directly below the barrier cover 4. The four first hydraulic cylinders 11 extend, pushing the barrier cover 4 to engage with the support platform 3. Simultaneously, the drive motor 9 is energized, causing air to circulate along the two connecting pipes 2 and the barrier cover 4, flowing through the heat exchange tubes 16 and heat exchange plates 18. At the same time, the liquid pump is energized, pumping the liquid medium inside the second storage tank 7 to the heat exchange tubes 16 for heat exchange, raising the temperature of the liquid medium, and then proceeding with the first... The liquid is stored in the storage tank 6 to recover heat and accelerate the cooling speed of the cathode carbon. The overall structure is simple and can effectively solve the problems existing in the prior art. By setting the heat exchange tube 16, which adopts a coiled and folded structure inside the barrier cover, the flow time of the liquid medium inside the barrier cover 4 is increased. Multiple heat exchange plates 18 increase the contact area with the flowing air, which facilitates the full heat exchange between the liquid medium and the flowing hot air and improves the conversion efficiency. By setting two guide rails 5, the moving platform 17 can easily move several cathode carbons to different positions.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calcining apparatus for producing pressure-resistant cathode carbon, characterized in that: The sintering furnace includes a sintering furnace body (1), inside which guide rails (5) are installed. Two guide rails (5) extend horizontally outward. Support platforms (3) are installed on the outer walls of the two guide rails (5). Support frames (12) are installed at the four corners of the support platforms (3). Four first hydraulic cylinders (11) are installed at the top of the support frames (12), and the output ends of the four cylinders are connected by a baffle (4). Connecting pipes (2) are installed at both ends of the baffle (4), and the ends of the two pipes are bent into the top of the baffle (4) and connected. A bulge area (10) is provided between the adjacent ends of the two connecting pipes (2). A drive motor (9) is installed on the outer wall of one of the connecting pipes (2), and its output end is connected to the two connecting pipes (9). The bulge area (10) extends inside. The output end of the drive motor (9) is equipped with multiple fan blades (15). A heat exchange tube (16) is installed on the side of the barrier cover (4) near the inner wall of a connecting pipe (2), and it is bent and coiled upward. Multiple heat exchange plates (18) are installed on the outer wall of the heat exchange tube (16). Both ends of the heat exchange tube (16) penetrate the barrier cover (4), and both ends are equipped with connecting pipes. A first storage tank (6) and a second storage tank (7) are arranged in parallel on one side of the support platform (3). A liquid pump (8) is installed on the top of the second storage tank (7). The output end of the liquid pump (8) is connected to a connecting pipe, and the other connecting pipe extends into the interior of the first storage tank (6).

2. The calcination apparatus for producing pressure-resistant cathode carbon according to claim 1, characterized in that: The sintering furnace body (1) has an outlet for cathode carbon to enter and exit on one side. A second hydraulic cylinder (13) and a sealing door (14) are installed on the side of the sintering furnace body (1) near the outlet. The top surface of the sealing door (14) is fixedly connected to the output end of the second hydraulic cylinder (13).

3. The calcination apparatus for producing pressure-resistant cathode carbon according to claim 2, characterized in that: A sealing gasket is installed between the adjacent sides of the two bulge areas (10), and the edges of the two are fixedly connected by a plurality of fasteners.

4. The calcination apparatus for producing pressure-resistant cathode carbon according to claim 3, characterized in that: Multiple sleepers supporting the guide rails (5) are installed on the outer wall of the two guide rails (5) away from the sintering furnace body (1).

5. A calcining apparatus for producing pressure-resistant cathode carbon according to claim 4, characterized in that: The inner wall of the barrier cover (4) and the outer walls of the two connecting pipes (2) are both equipped with a heat insulation layer (19).

6. A calcining apparatus for producing pressure-resistant cathode carbon according to claim 5, characterized in that: The bend of the heat exchange tube (16) is fixedly connected to the inner wall of the barrier cover (4) by a pipe clamp. Multiple heat exchange plates (18) are linearly arranged on the outer wall of the heat exchange tube (16), and there is a gap between their side and the outer wall of the insulation layer (19).

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