Waste heat recycling device of continuous graphitization furnace

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a continuous graphitization furnace waste heat recycling device which comprises a flue transfer pipe and a water tank, the surface of the flue transfer pipe is communicated with a smoke pipe, and a first conversion disc, a second conversion disc and a heat conduction pipe are arranged in the flue transfer pipe. The interior of the first conversion disc and the interior of the second conversion disc are each of a hollow structure. The heat exchange roller is changed into the heat conduction pipe, cold water can quickly circulate in the heat conduction pipe, the heat transfer effect is better, the smoke pipe is divided into the air inlet pipe and the air outlet pipe, and the diameter of the air inlet pipe is larger than that of the air outlet pipe so that smoke can be stacked when entering the flue transfer pipe, and the heat transfer effect is better. Further, the flue gas can be in full contact with the heat conduction pipe in the staying process, the flue gas in the heat conduction pipe can move more violently through rotation of the heat conduction pipe, contact between the flue gas and the heat conduction pipe is further enhanced, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery, in particular to a device for recovering waste heat from a continuous graphitization furnace. Background Art

[0002] Graphitization furnace is often used as equipment for making electrode raw materials. Graphitization refers to the transformation of carbon atoms from a disordered and irregular arrangement to a regularly arranged hexagonal planar network structure, i.e., graphite microcrystalline structure, at high temperature. Its purpose is to obtain high electrical conductivity, high thermal conductivity, corrosion resistance, friction resistance and other properties of graphite.

[0003] The graphitization furnace will release flue gas during the combustion process, and the released flue gas will take away part of the heat, resulting in the loss of heat and waste of resources. After a lot of searching, it was found that: China Utility Model Patent Column: Publication No. CN214065757U discloses a continuous graphitization furnace waste heat recovery and utilization device, including a graphitization furnace, which extracts the high-temperature flue gas generated by the combustion in the graphitization furnace into the heat exchange drum through the smoke extraction pipe, so that the motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the belt, so that the driven wheel drives the bracket to rotate, and the bracket drives the heat exchange drum to rotate, and then in the process of the rotation of the heat exchange drum, heat is exchanged with the cold water in the water tank, and the heat can be The heat absorbed in the heat exchange drum is transferred to the water tank, so that the water in the water tank is heated and the water in the water tank is evenly heated during the rotation of the heat exchange drum, thereby realizing the heating of the water in the water tank for reuse. The dust in the smoke can be removed by the dust removal bag, and the dust and other harmful substances in the smoke can be adsorbed by the activated carbon adsorption layer to prevent the harmful substances from remaining in the smoke and being discharged to affect the environment. The heat exchange drum and the flue gas are in contact with each other, so that the heat in the flue gas is transferred to the cold water inside the heat exchange drum, thereby realizing heat exchange. However, the heat exchange drum is large in size, and the cold water inside absorbs the heat in the flue gas relatively slowly, resulting in poor heat transfer efficiency. Utility Model Content

[0004] The utility model aims to provide a device for recovering waste heat from a continuous graphitization furnace, which solves the problem in the prior art that the graphitization furnace releases smoke during the combustion process, and the released smoke takes away part of the heat, resulting in heat loss and waste of resources.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for recovering waste heat from a continuous graphitization furnace comprises a flue adapter and a water tank, wherein the surface of the flue adapter is connected to a smoke pipe, and a first conversion disk, a second conversion disk and a heat conduction pipe are arranged inside the flue adapter, wherein the interiors of the first conversion disk and the second conversion disk are both arranged to be hollow structures, and the heat conduction pipe is arranged between the first conversion disk and the second conversion disk, and the heat conduction pipe is arranged in a plurality of "S" shapes, connected end to end, and the two ends are respectively connected to the first conversion disk and the second conversion disk, and the two sides of the water tank are respectively connected to a first hose and a second hose, and the first hose and the second hose are respectively connected to the first conversion disk and the second conversion disk.

[0007] Preferably, the ends of the first conversion disk and the second conversion disk away from each other are both connected to support tubes, and the two support tubes rotate through the two ends of the flue transfer tube respectively to realize the state in which the first conversion disk and the second conversion disk rotate inside the flue transfer tube.

[0008] Preferably, the ends of the two support tubes that are away from each other are both rotatably connected to a connector, a connecting rod is fixedly installed on the surface of the connector, the connector is fixedly connected to the flue transfer tube through the connecting rod, and the first hose and the second hose are respectively connected to the two connectors. Preferably, a driven turntable is fixedly sleeved on the surface of the support tube, a motor is fixedly installed on the side wall of the flue transfer tube, a driving turntable is fixedly installed on the output shaft port of the motor, and the driving turntable and the driven turntable are connected by a belt drive.

[0009] Preferably, a water pump is fixedly mounted on the side wall of the water tank, a water inlet end of the water pump is inserted into the interior of the water tank, and a water outlet end of the water pump is connected to the first hose.

[0010] Preferably, the surfaces of the heat conducting pipe are fixedly connected to the first conversion disk and the second conversion disk respectively so as to support the heat conducting pipe.

[0011] Preferably, the smoke pipe is divided into an air inlet pipe and an air outlet pipe, wherein the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe so that smoke can accumulate inside the flue transfer pipe.

[0012] The utility model has at least the following beneficial effects:

[0013] By replacing the heat exchange drum with a heat conduction pipe, cold water can circulate quickly in the heat conduction pipe, which has a better effect on heat transfer. In addition, the smoke pipe is divided into an air inlet pipe and an air outlet pipe. The diameter of the air inlet pipe is larger than the diameter of the air outlet pipe so that the smoke can accumulate inside the flue transfer pipe, thereby allowing the smoke to fully contact the heat conduction pipe during the stay process. The rotation of the heat conduction pipe will make the internal smoke activity more intense, further strengthening the contact between the smoke and the heat conduction pipe and enhancing the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the connector of the utility model;

[0017] Figure 3 This is a cross-sectional view of the flue transfer tube of the utility model;

[0018] Figure 4 This is a schematic diagram of the heat conduction pipe structure of the utility model.

[0019] In the figure: 1. flue transfer tube; 2. water tank; 3. water pump; 4. first hose; 5. second hose; 6. flue pipe; 7. first conversion disk; 8. second conversion disk; 9. connector; 10. heat transfer pipe; 11. active turntable; 12. motor; 13. driven turntable; 14. support tube. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0024] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] Reference Figure 1-4 A continuous graphitization furnace waste heat recovery and utilization device comprises a flue transfer tube 1 and a water tank 2. The surface of the flue transfer tube 1 is connected with a smoke pipe 6. The interior of the flue transfer tube 1 is provided with a first conversion disk 7, a second conversion disk 8 and a heat conduction pipe 10. The interiors of the first conversion disk 7 and the second conversion disk 8 are both arranged as hollow structures. The heat conduction pipe 10 is arranged between the first conversion disk 7 and the second conversion disk 8. The heat conduction pipe 10 is arranged in a plurality of "S" shapes, and the two ends are respectively connected with the first conversion disk 7 and the second conversion disk 8. The two sides of the water tank 2 are respectively connected with a first hose 4 and a second hose 5. Tube 5, and the first hose 4 and the second hose 5 are connected with the first conversion disk 7 and the second conversion disk 8 respectively. During use, the flue gas generated by the graphite furnace is transferred to the flue transfer tube 1 through the smoke pipe 6. Since the flue transfer tube 1 is provided with a heat conduction pipe 10 inside, and the heat conduction pipe 10 is arranged in an "S"-shaped tail connection spiral, the flue gas can fully contact the heat conduction pipe 10, and the heat is quickly absorbed by the cold water in the heat conduction pipe 10. By changing the heat exchange roller in the prior art into the heat conduction pipe 10, the cold water can quickly circulate in the heat conduction pipe 10, which has a better effect on heat transfer.

[0026] Furthermore, the ends of the first conversion disk 7 and the second conversion disk 8 that are away from each other are both connected to a support tube 14, and the two support tubes 14 are respectively rotated to pass through the two ends of the flue transition tube 1 to realize the state of the first conversion disk 7 and the second conversion disk 8 rotating inside the flue transition tube 1, and the heat pipe 10 is installed between the first conversion disk 7 and the second conversion disk 8, and the first conversion disk 7 and the second conversion disk 8 can be rotated by using the support tube 14, thereby achieving the purpose of synchronously rotating the first conversion disk 7 and the second conversion disk 8 and the heat pipe 10. The rotation of the heat pipe 10 can make the contact effect between the flue gas and the heat pipe 10 better, and the flue gas in the flue transition tube 1 can be dispersed, thereby further improving the heat exchange efficiency.

[0027] Furthermore, the ends of the two support tubes 14 that are away from each other are both rotatably connected to a connector 9, a connecting rod is fixedly installed on the surface of the connector 9, the connector 9 is fixedly connected to the flue transfer tube 1 through the connecting rod, the first hose 4 and the second hose 5 are respectively connected to the two connectors 9, and by providing the connector 9, the first hose 4 and the second hose 5 can be conveniently connected to the connector 9, thereby achieving the purpose of connecting the water tank 2 and the heat transfer tube 10, and the connector 9 and the flue transfer tube 1 are fixedly connected, and the support tube 14 and the connector 9 are rotatably connected, so it will not affect the relative rotation between the hose and the support tube 14.

[0028] Furthermore, a driven turntable 13 is fixedly sleeved on the surface of the support tube 14, a motor 12 is fixedly installed on the side wall of the flue transfer tube 1, a driving turntable 11 is fixedly installed on the output shaft port of the motor 12, the driving turntable 11 and the driven turntable 13 are connected by a belt drive, the motor 12 is started, the motor 12 drives the driving turntable 11 to rotate, the driving turntable 11 drives the driven turntable 13 to rotate by the belt, and the driven turntable 13 drives the support tube 14 to rotate, thereby achieving the purpose of rotating the first conversion disk 7, the second conversion disk 8 and the heat transfer tube 10.

[0029] Furthermore, a water pump 3 is fixedly installed on the side wall of the water tank 2, the water inlet end of the water pump 3 is inserted into the inside of the water tank 2, and the water outlet end of the water pump 3 is connected to the first hose 4. The water pump 3 can quickly circulate the water in the heat pipe 10.

[0030] Furthermore, the surfaces of the heat-conducting pipe 10 are fixedly connected to the first conversion disk 7 and the second conversion disk 8 respectively so as to support the heat-conducting pipe 10 .

[0031] Furthermore, the smoke pipe 6 is divided into an air inlet pipe and an air outlet pipe, wherein the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe so that smoke can be accumulated inside the flue transfer pipe 1.

[0032] In summary, during use, the flue gas generated by the graphite furnace is transferred to the flue transfer tube 1 through the flue pipe 6. Since the flue transfer tube 1 is provided with a heat conducting tube 10 inside, and the heat conducting tube 10 is arranged in an "S"-shaped tail connection spiral, the flue gas can fully contact the heat conducting tube 10, and the heat is quickly absorbed by the cold water in the heat conducting tube 10. By changing the heat exchange roller in the prior art to the heat conducting tube 10, the cold water can quickly circulate in the heat conducting tube 10, which has a better heat transfer effect. The heat conducting tube 10 is installed on the first conversion disk 7 and the second conversion disk 8. The first conversion disk 7 and the second conversion disk 8 can be rotated by the support tube 14, so as to achieve the purpose of synchronously rotating the first conversion disk 7 and the second conversion disk 8 and the heat conducting tube 10. The rotation of the heat conducting tube 10 can make the contact effect between the flue gas and the heat conducting tube 10 better, and the flue gas in the flue transfer tube 1 can be scattered to further improve the heat exchange efficiency. By setting the connector 9, the first hose 4 and the second hose 5 are conveniently connected to the connector 9, so as to achieve the purpose of connecting the water tank 2 and the heat conducting tube 10. , and the connector 9 is fixedly connected to the flue transfer tube 1, and the support tube 14 is rotatably connected to the connector 9, so the relative rotation between the hose and the support tube 14 will not be affected, the motor 12 is started, the motor 12 drives the active turntable 11 to rotate, the active turntable 11 uses a belt to drive the driven turntable 13 to rotate, and the driven turntable 13 drives the support tube 14 to rotate, thereby realizing the purpose of rotating the first conversion disk 7 and the second conversion disk 8 and the heat conducting tube 10, the water pump 3 can achieve the purpose of quickly circulating the water in the heat conducting tube 10, and the use process of the whole device is as follows: , start the water pump 3, the water pump 3 transfers the water in the water tank 2 to the first hose 4, enters the connector 9 through the first hose 4, enters the support tube 14 through the connector 9, enters the first conversion disk 7 through the support tube 14, and enters the heat conduction tube 10 through the first conversion disk 7. The cold water flows rapidly in the spirally arranged heat conduction tube 10, so that the heat conduction tube 10 can quickly transfer heat to the cold water during the contact process with the flue gas, and finally enters another support tube 14 from the second conversion disk 8, and then enters the water tank 2 from the second hose 5, thereby realizing circulation.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A continuous graphitization furnace waste heat recovery device, characterized in that: The invention comprises a flue transfer tube (1) and a water tank (2), wherein the surface of the flue transfer tube (1) is connected to a flue pipe (6), and the interior of the flue transfer tube (1) is provided with a first conversion disk (7), a second conversion disk (8) and a heat conduction tube (10), wherein the interior of the first conversion disk (7) and the second conversion disk (8) are both provided with a hollow structure, and the heat conduction tube (10) is provided between the first conversion disk (7) and the second conversion disk (8), and the heat conduction tube (10) is provided in a plurality of "S" shapes, connected end to end, and the two ends are respectively connected to the first conversion disk (7) and the second conversion disk (8), and the two sides of the water tank (2) are respectively connected to a first hose (4) and a second hose (5), and the first hose (4) and the second hose (5) are respectively connected to the first conversion disk (7) and the second conversion disk (8).

2. The device for recovering waste heat from a continuous graphitization furnace according to claim 1, characterized in that: The ends of the first conversion disk (7) and the second conversion disk (8) that are away from each other are both connected to a support tube (14), and the two support tubes (14) are respectively rotated to penetrate the two ends of the flue transfer tube (1) to achieve a state in which the first conversion disk (7) and the second conversion disk (8) are rotated inside the flue transfer tube (1).

3. The device for recovering waste heat from a continuous graphitization furnace according to claim 2, characterized in that: The ends of the two support tubes (14) that are away from each other are both rotatably connected to a connector (9), a connecting rod is fixedly installed on the surface of the connector (9), the connector (9) is fixedly connected to the flue transfer tube (1) via the connecting rod, and the first hose (4) and the second hose (5) are respectively connected to the two connectors (9).

4. The device for recovering waste heat from a continuous graphitization furnace according to claim 3, characterized in that: A driven rotary disc (13) is fixedly sleeved on the surface of the support tube (14), a motor (12) is fixedly mounted on the side wall of the flue transfer tube (1), a driving rotary disc (11) is fixedly mounted on the output shaft port of the motor (12), and the driving rotary disc (11) and the driven rotary disc (13) are connected via a belt drive.

5. The device for recovering waste heat from a continuous graphitization furnace according to claim 1, characterized in that: A water pump (3) is fixedly mounted on the side wall of the water tank (2); a water inlet end of the water pump (3) is inserted into the interior of the water tank (2); and a water outlet end of the water pump (3) is connected to a first hose (4).

6. The device for recovering waste heat from a continuous graphitization furnace according to claim 1, characterized in that: The surface of the heat-conducting pipe (10) is fixedly connected to the first conversion disk (7) and the second conversion disk (8) respectively so as to achieve a state of supporting the heat-conducting pipe (10).

7. The device for recovering waste heat from a continuous graphitization furnace according to claim 1, characterized in that: The smoke pipe (6) is divided into an air inlet pipe and an air outlet pipe, wherein the diameter of the air inlet pipe is larger than the diameter of the air outlet pipe so that smoke can be accumulated inside the smoke duct transfer pipe (1).

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