Rapid cooling graphitization furnace

Abstract

The utility model discloses a rapid cooling graphitization furnace, and particularly relates to the graphitization furnace field, the rapid cooling graphitization furnace comprises an outer furnace body, the middle part of the outer furnace body is fixedly connected with an inner furnace body, one side of the outer furnace body is provided with a water tank, the top of the outer furnace body is provided with a driving box, and the middle part of the wall body of the inner furnace body is provided with an electric heating plate; and a rotating pipe is arranged in the middle of the outer furnace body. The high-pressure water pump is started to inject cooling liquid into the cavity between the outer furnace body and the inner furnace body, the cooled liquid flows into the heat exchange box through the communicating pipe and the water guide pipe, the draught fan is started to cool water in sequence, and then the water flows back into the water tank to be recycled. The circulating cooling device can prevent water vapor from being directly discharged to cause mass loss of water, can cool the water, improves the circulating cooling effect, and can improve the cooling efficiency and the use effect through simultaneous cooling of the outside and the middle part.

Description

Technical Field

[0001] The utility model relates to the technical field of graphitization furnaces, and more specifically, to a fast-cooling graphitization furnace. Background Art

[0002] Graphitization furnace is mainly used for sintering and graphitization of carbon materials, graphitization of PI films, graphitization of thermal conductive materials, sintering of carbon fiber ropes, sintering and graphitization of carbon fiber filaments, purification of graphite powder and other high-temperature treatments that can be graphitized under carbon environment. After the graphitization process, a large amount of heat is accumulated in the graphitized material, and it must be cooled before discharging.

[0003] Since the graphitization furnace needs to wait until it cools down before it can be recycled after use, the cooling process of the graphitization furnace usually adopts natural cooling, which leads to a long waiting time and reduces production efficiency;

[0004] Chinese patent application number CN202121854788.4 discloses a graphitization furnace capable of rapid cooling, comprising a horizontally placed cylindrical graphitization furnace body, the outer wall of which is uniformly covered with heat dissipating fins; a water storage tank is provided at the bottom of the graphitization furnace body, one side of which is connected to a water main pipe via a circulating water pump. The circulating pump pumps cold water from the water storage tank through the water main pipe to a first water branch pipe, then discharges it from a first water outlet and sprays it onto the graphitization furnace body. The heat from the graphitization furnace body is rapidly volatilized through the heat dissipating fins, thereby increasing the cooling rate of the graphitization furnace body, shortening the time it takes to be put back into use, and improving production efficiency.

[0005] However, it can be seen from the drawings in its specification that cooling the graphitization furnace by spraying water can easily generate a large amount of water vapor, resulting in serious water loss, and the cooled liquid is directly circulated for cooling. After multiple uses, the water temperature rises, reducing the cooling effect, making it inconvenient to cool the water and reduce water loss, affecting the use effect. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a graphitization furnace with rapid cooling to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a rapid cooling graphitization furnace, comprising an outer furnace body, an inner furnace body fixedly connected to the middle of the outer furnace body, a water tank provided on one side of the outer furnace body, a drive box provided on the top of the outer furnace body, an electric heating plate provided in the middle of the wall of the inner furnace body, a rotating tube provided in the middle of the outer furnace body, and a plurality of stirring rods and scrapers fixedly connected to the outer surface of the rotating tube;

[0008] The top fixed sleeve of the rotating tube is provided with a gear ring and a limit ring, the middle of the driving box is fixedly connected to a motor, the output end of the motor is fixedly connected to a gear, the middle of the outer furnace body is fixedly connected to a water pipe, and the top of the outer furnace body is connected to a connecting pipe;

[0009] A heat exchange and heat dissipation mechanism is provided on the top of the water tank, a high-pressure water pump is provided on one side of the water tank, and a three-way valve is provided on the top of the high-pressure water pump.

[0010] Preferably, a feed hopper is provided on one side of the top of the outer furnace body, the inner cavity of the feed hopper is connected to the inner cavity of the inner furnace body, and a discharge valve is connected to the bottom of the outer furnace body through a discharge pipe, and the discharge pipe is connected to the inner cavity of the inner furnace body.

[0011] Preferably, one end of the water pipe passes through the middle of the inner furnace body, the outer furnace body and the drive box, the water pipe is located in the middle of the rotating tube, the inner cavity of the water pipe is connected to the bottom of the inner cavity of the outer furnace body, and the top of the inner furnace body is fixedly connected with a stabilizing ring, which is sleeved in the middle of the rotating tube.

[0012] Preferably, the limiting ring is located at the top of the inner cavity of the inner furnace body, the gear ring is located in the middle of the drive box, the gear is engaged with the gear ring, and the bottom wall of the scraper is in contact with the bottom wall of the inner cavity of the inner furnace body.

[0013] Preferably, the top of the three-way valve is connected to the bottom of the inner cavity of the outer furnace body, one end of the three-way valve is connected to the inner cavity of the water tank, and the input end of the high-pressure water pump is connected to the inner cavity of the water tank.

[0014] Preferably, the heat exchange and heat dissipation mechanism includes a heat exchange box fixed on the top of the water tank, one end of the water pipe is connected to the inner cavity of the heat exchange box, a bellows is provided on the top of the heat exchange box, and a fan and heat dissipation fins are provided in the inner cavity of the bellows.

[0015] Preferably, a heat absorbing plate is fixedly connected to the middle of the heat exchange box, one end of the heat exchange box is connected to a water outlet pipe, one end of the water outlet pipe is connected to the inner cavity of the water tank, the heat absorbing plate is fixedly connected to the heat dissipating fin plate through a heat conducting plate, and the fan is arranged on the top of the heat dissipating fin plate.

[0016] The technical effects and advantages of this utility model are:

[0017] The utility model first starts the high-pressure water pump to inject cooling liquid into the cavity between the outer furnace body and the inner furnace body, and makes the cooled liquid flow into the interior of the heat exchange box through the connecting pipe and the water guide pipe, and starts the fan in turn to cool the water body, and then returns it to the interior of the water tank for recycling, which can avoid the direct discharge of generated water vapor, resulting in a large amount of water loss, and can cool the water body, improve the circulation cooling effect, and by cooling the outer and middle parts at the same time, it can improve the cooling efficiency and improve the use effect;

[0018] The utility model can also start the motor to control the rotating tube in sequence to drive the stirring rod and the scraper to rotate, so as to stir the raw materials in the outer furnace body, improve the heating and cooling effects, and is convenient to use. The liquid in the cavity between the outer furnace body and the inner furnace body can be easily discharged into the water tank through the three-way valve, which is convenient for continuous heating and improves the use effect. The cooperation of the heat dissipation fin plate and the heat absorption plate can cool the high-temperature water body and improve the use effect.

[0019] In summary, through the mutual influence of the above-mentioned multiple effects, it is convenient to cool the water body, improve the circulation cooling effect, avoid large-scale water loss, and save water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the water tank of the utility model.

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer furnace body of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection structure between the rotating tube and the motor of the utility model.

[0025] The accompanying drawings are marked as follows: 1. Outer furnace body; 2. Inner furnace body; 3. Water tank; 4. Drive box; 5. Electric heating plate; 6. Rotating tube; 7. Stirring rod; 8. Scraper; 9. Gear ring; 10. Limiting ring; 11. Motor; 12. Gear; 13. Water guide pipe; 14. Connecting pipe; 15. Three-way valve; 16. High-pressure water pump; 17. Feed hopper; 18. Discharge valve; 19. Stabilizing ring; 20. Heat exchange box; 21. Water outlet pipe; 22. Bellows; 23. Fan; 24. Heat dissipation fin; 25. Heat absorption plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] As attached Figure 1-5 The rapid cooling graphitization furnace shown includes an outer furnace body 1, an inner furnace body 2 is fixedly connected to the middle of the outer furnace body 1, a water tank 3 is provided on one side of the outer furnace body 1, a drive box 4 is provided on the top of the outer furnace body 1, and an electric heating plate 5 is provided in the middle of the wall of the inner furnace body 2. The raw materials in the middle of the inner furnace body 2 are heated by the electric heating plate 5. A rotating tube 6 is provided in the middle of the outer furnace body 1, and a plurality of stirring rods 7 and scrapers 8 are fixedly connected to the outer surface of the rotating tube 6. The rotation of the rotating tube 6 can drive the stirring rods 7 and scrapers 8 to stir the raw materials in the middle of the inner furnace body 2, thereby improving the graphitization treatment effect;

[0028] The top fixed sleeve of the rotating tube 6 is provided with a gear ring 9 and a limit ring 10, the middle part of the drive box 4 is fixedly connected to a motor 11, the output end of the motor 11 is fixedly connected to a gear 12, the middle part of the outer furnace body 1 is fixedly connected to a water guide pipe 13, and the top of the outer furnace body 1 is connected to a connecting pipe 14. The starting motor 11 controls the gear 12 to drive the gear ring 9 to rotate, which can control the rotating tube 6 to drive the stirring rod 7 and the scraper 8 to rotate, playing a driving role, and through the water guide pipe 13 and the connecting pipe 14, the inner cavity of the water guide pipe 13 can be connected to the cavity between the outer furnace body 1 and the inner furnace body 2;

[0029] A heat exchange and heat dissipation mechanism is provided on the top of the water tank 3, and a high-pressure water pump 16 is provided on one side of the water tank 3. A three-way valve 15 is provided on the top of the high-pressure water pump 16. The high-temperature liquid output from the water pipe 13 can be cooled by the heat exchange and heat dissipation mechanism. By starting the high-pressure water pump 16, the cooling liquid in the water tank 3 is input into the cavity between the outer furnace body 1 and the inner furnace body 2, which is convenient for cooling. The three-way valve 15 can be opened to make the two ends of the pipeline connected to the water tank 3 and the middle cavity of the outer furnace body 1 respectively, so that the liquid in the inner cavity between the inner furnace body 2 and the outer furnace body 1 can be discharged conveniently, which is convenient for use.

[0030] As attached Figure 1 、 2 As shown in Figure 4, a feed hopper 17 is provided on one side of the top of the outer furnace body 1. The inner cavity of the feed hopper 17 is connected to the inner cavity of the inner furnace body 2. The bottom of the outer furnace body 1 is connected to a discharge valve 18 through a discharge pipe. The discharge pipe is connected to the inner cavity of the inner furnace body 2 to facilitate feeding through the feed hopper 17 and discharging through the discharge valve 18.

[0031] As attached Figure 1 、2 As shown in Figures 4, one end of the water pipe 13 passes through the middle of the inner furnace body 2, the outer furnace body 1, and the drive box 4. The water pipe 13 is located in the middle of the rotating tube 6. The inner cavity of the water pipe 13 is connected to the bottom of the inner cavity of the outer furnace body 1. A stabilizing ring 19 is fixedly connected to the top of the inner furnace body 2. The stabilizing ring 19 is sleeved on the middle of the rotating tube 6. The rotation of the rotating tube 6 is not affected by the water pipe 13, and the stability of the rotating tube 6 is improved by the stabilizing ring 19.

[0032] As attached Figure 2 As shown, the limiting ring 10 is located at the top of the inner cavity of the inner furnace body 2, the gear ring 9 is located in the middle of the drive box 4, the gear 12 is engaged with the gear ring 9, and the bottom wall of the scraper 8 is in contact with the bottom wall of the inner cavity of the inner furnace body 2. The rotating tube 6 is limited by the limiting ring 10 and the gear ring 9, and the gear 12 can drive the gear ring 9 to rotate the rotating tube 6.

[0033] As attached Figure 2 As shown, the top of the three-way valve 15 is connected to the bottom of the inner cavity of the outer furnace body 1, one end of the three-way valve 15 is connected to the inner cavity of the water tank 3, and the input end of the high-pressure water pump 16 is connected to the inner cavity of the water tank 3. The three-way valve 15 can be used to control whether the internal cavities of the outer furnace body 1 and the inner furnace body 2 are connected to the water tank 3 and the high-pressure water pump 16, which is convenient for control.

[0034] As attached Figure 2 、 3 As shown, the heat exchange and heat dissipation mechanism includes a heat exchange box 20 fixed on the top of the water tank 3, one end of the water pipe 13 is connected to the inner cavity of the heat exchange box 20, a bellows 22 is provided on the top of the heat exchange box 20, and a fan 23 and a heat dissipation fin plate 24 are provided in the inner cavity of the bellows 22.

[0035] As attached Figure 2 、 3 As shown, a heat absorbing plate 25 is fixedly connected to the middle of the heat exchange box 20, and a water outlet pipe 21 is connected to one end of the heat exchange box 20. One end of the water outlet pipe 21 is communicated with the inner cavity of the water tank 3. The heat absorbing plate 25 is fixedly connected to the heat dissipating fin plate 24 through a heat conducting plate. The fan 23 is arranged on the top of the heat dissipating fin plate 24. The hot water input into the heat exchange box 20 through the water guide pipe 13 absorbs heat through the heat absorbing plate 25 and is introduced into the surface of the heat dissipating fin plate 24. The fan 23 is started to dissipate heat from the heat dissipating fin plate 24 and cool it down, thereby cooling the liquid inside the heat exchange box 20. The cooled liquid is input into the water tank 3 through the water outlet pipe 21 for internal circulation.

[0036] It is worth noting that an exhaust hole and a control panel are provided on the top of the water tank 3, and a water inlet pipe is provided on one side of the water tank 3 to facilitate the replenishment of water and exhaust of gas, and the startup is conveniently controlled through the control panel.

[0037] The working principle of the utility model is as follows: when in use, raw materials are added to the interior of the inner furnace body 2 through the feed hopper 17, and the inner furnace body 2 is heated by the electric heating plate 5. The motor 11 is started to control the rotating tube 6 to drive the stirring rod 7 and the scraper 8 to stir the raw materials to achieve high-temperature graphitization treatment. The materials can be discharged by opening the discharge valve 18;

[0038] When cooling the interior of the inner furnace body 2, the inner cavity of the outer furnace body 1 is controlled to be connected to the high-pressure water pump 16 through the three-way valve 15. The high-pressure water pump 16 is started to input the liquid in the water tank 3 into the middle of the inner cavity of the outer furnace body 1 and the inner furnace body 2, and simultaneously into the middle of the water guide pipe 13 in the middle of the rotating tube 6. This allows the coolant to wrap around the outer surface of the inner furnace body 2 and cool the raw materials simultaneously through the middle, thereby achieving rapid cooling of the raw materials inside the inner furnace body 2.

[0039] When the liquid in the middle of the outer furnace body 1 and the inner furnace body 2 is full, the liquid will be discharged through the connecting pipe 14 and the top of the water guide pipe 13 and flow into the interior of the heat exchange box 20. The fan 23 is started to cool the liquid in the heat exchange box 20 in turn, so that the cooled liquid flows into the interior of the water tank 3 through the water outlet pipe 21 for recycling, thereby improving the use effect. The liquid flow improves the cooling efficiency.

[0040] When the graphitization needs to be treated at high temperature again, the inner cavity of the outer furnace body 1 is controlled by the three-way valve 15 to be directly connected to the inner cavity of the water tank 3, so that the liquid in the inner cavity of the outer furnace body 1 can flow into the interior of the water tank 3, so that there is no liquid in the middle of the outer furnace body 1 and the inner furnace body 2, which is convenient for high-temperature use again.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid cooling graphitization furnace, comprising an outer furnace body (1), characterized in that: The inner furnace body (2) is fixedly connected to the middle of the outer furnace body (1), a water tank (3) is provided on one side of the outer furnace body (1), a driving box (4) is provided on the top of the outer furnace body (1), an electric heating plate (5) is provided in the middle of the wall of the inner furnace body (2), a rotating tube (6) is provided in the middle of the outer furnace body (1), and a plurality of stirring rods (7) and scrapers (8) are fixedly connected to the outer surface of the rotating tube (6); The top fixed sleeve of the rotating tube (6) is provided with a gear ring (9) and a limit ring (10); the middle of the driving box (4) is fixedly connected to a motor (11); the output end of the motor (11) is fixedly connected to a gear (12); the middle of the outer furnace body (1) is fixedly connected to a water guide pipe (13); and the top of the outer furnace body (1) is connected to a connecting pipe (14); A heat exchange and heat dissipation mechanism is provided on the top of the water tank (3), a high-pressure water pump (16) is provided on one side of the water tank (3), and a three-way valve (15) is provided on the top of the high-pressure water pump (16).

2. The rapid cooling graphitization furnace according to claim 1, characterized in that: A feed hopper (17) is provided on one side of the top of the outer furnace body (1), and the inner cavity of the feed hopper (17) is connected to the inner cavity of the inner furnace body (2). The bottom of the outer furnace body (1) is connected to a discharge valve (18) via a discharge pipe, and the discharge pipe is connected to the inner cavity of the inner furnace body (2).

3. The rapid cooling graphitization furnace according to claim 1, characterized in that: One end of the water guide pipe (13) passes through the middle of the inner furnace body (2), the outer furnace body (1), and the drive box (4); the water guide pipe (13) is located in the middle of the rotating tube (6); the inner cavity of the water guide pipe (13) is connected to the bottom of the inner cavity of the outer furnace body (1); the top of the inner furnace body (2) is fixedly connected to a stabilizing ring (19); the stabilizing ring (19) is sleeved on the middle of the rotating tube (6).

4. The rapid cooling graphitization furnace according to claim 1, characterized in that: The limiting ring (10) is located at the top of the inner cavity of the inner furnace body (2), the gear ring (9) is located in the middle of the drive box (4), the gear (12) is meshed with the gear ring (9), and the bottom wall of the scraper (8) is in contact with the bottom wall of the inner cavity of the inner furnace body (2).

5. The rapid cooling graphitization furnace according to claim 1, characterized in that: The top end of the three-way valve (15) is connected to the bottom of the inner cavity of the outer furnace body (1), one end of the three-way valve (15) is connected to the inner cavity of the water tank (3), and the input end of the high-pressure water pump (16) is connected to the inner cavity of the water tank (3).

6. The rapid cooling graphitization furnace according to claim 1, characterized in that: The heat exchange and heat dissipation mechanism comprises a heat exchange box (20) fixed on the top of the water tank (3); one end of the water pipe (13) is connected to the inner cavity of the heat exchange box (20); a wind box (22) is provided on the top of the heat exchange box (20); and a fan (23) and a heat dissipation fin (24) are provided in the inner cavity of the wind box (22).

7. The rapid cooling graphitization furnace according to claim 6, characterized in that: A heat absorbing plate (25) is fixedly connected to the middle of the heat exchange box (20), one end of the heat exchange box (20) is connected to a water outlet pipe (21), one end of the water outlet pipe (21) is connected to the inner cavity of the water tank (3), the heat absorbing plate (25) is fixedly connected to the heat dissipating fin plate (24) through a heat conducting plate, and the fan (23) is arranged on the top of the heat dissipating fin plate (24).

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