Tunnel type lithium battery heating furnace

Abstract

The utility model relates to the technical field of heating furnaces, and discloses a tunnel type lithium battery heating furnace which comprises a conveying frame, a conveying belt and a heating furnace body, a flow guide box is fixed to the position, close to the discharging end of the conveying belt, in the heating furnace body, and two sets of heating pipes are arranged in the flow guide box. An exhaust port is formed in the side, close to the discharging end of the conveying belt, of the bottom of the flow guide box, the top face, close to the top face of the discharging end of the conveying belt, of the flow guide box is connected with the exterior of the heating furnace body in a penetrating mode, and an air bellow is arranged at the end, away from the exhaust port, of the interior of the heating furnace body. According to the tunnel type lithium battery heating furnace, potential safety hazards caused by too high content of hydrogen and methane in the furnace body can be avoided, meanwhile, the heating effect when airflow enters is guaranteed, the problem that when an existing tunnel type lithium battery heating furnace is used, gas generated by decomposition of a lithium battery cannot be recycled in time is solved, and the using safety of the heating furnace is improved.

Description

TECHNICAL FIELD

[0001] The utility model application relates to the technical field of heating furnace, specifically is a tunnel type lithium battery heating furnace. BACKGROUND

[0002] The tunnel type lithium battery heating furnace processes waste lithium batteries through high temperature pyrolysis technology, organic substances in the battery are decomposed into gas and recyclable oil substances under high temperature environment, and metal components are retained for subsequent extraction and recycling, and through accurate control of temperature and reaction conditions, organic substances are converted into gas and recyclable oil substances, and environmental pollution is reduced.

[0003] When the heating furnace pyrolyzes lithium batteries, composite gas is generated after the decomposition of electrolyte in lithium batteries, thermal decomposition or gasification reaction of organic solvents and other materials during the pyrolysis process, including hydrogen, carbon monoxide, carbon dioxide, methane and the like, when the content of internal hydrogen and methane is too high, explosion is prone to occur, and the existing lithium battery heating furnace cannot decompose and recycle the generated gas in time, greatly reducing the safety of the heating furnace in use. SUMMARY

[0004] In order to solve the problem that the existing tunnel type lithium battery heating furnace cannot recycle the gas generated by the decomposition of lithium batteries in time, the utility model provides a tunnel type lithium battery heating furnace to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A tunnel type lithium battery heating furnace, including conveying frame, conveying belt and heating furnace body, the heating furnace body is fixed with the flow guide box near the discharging end of the conveying belt inside, two groups of heating pipes are arranged in the flow guide box, the exhaust port is arranged on one side of the flow guide box bottom near the discharging end of the conveying belt, the top surface of the flow guide box is connected with the outside of the heating furnace body through the top surface of the discharging end of the conveying belt, the air bellow is arranged at one end of the heating furnace body away from the exhaust port, the fan is arranged in the air bellow and the air inlet is arranged on the top surface of the air bellow.

[0007] Further, the support plate is arranged on the top surface of the conveying belt, and the support plate is fixed on the inner wall of the conveying frame at the front and rear ends, for supporting the waste lithium battery.

[0008] Further, the connecting frame is arranged on the outside of the heating furnace body, the servo air cylinder is arranged on the front and rear sides of the conveying frame, the output end of the servo air cylinder is fixed on the bottom surface of the connecting frame, and the sealing door plate is slidably arranged on the both ends of the heating furnace body.

[0009] Further, the guide flow box is internally fixed with a guide plate between the two groups of heating pipes, a ventilation passage is arranged between the end of the guide plate away from the exhaust port and the inner wall of the guide flow box, each of the heating pipes is arranged in a serpentine shape, and a heat preservation plate is internally and fixedly arranged on the top of the guide flow box.

[0010] Further, the guide flow box is internally fixed with a guide plate between the two groups of heating pipes, a ventilation passage is arranged between the end of the guide plate away from the exhaust port and the inner wall of the guide flow box, each of the heating pipes is arranged in a serpentine shape, and a heat preservation plate is internally and fixedly arranged on the top of the guide flow box.

[0011] Further, the guide flow box is internally fixed with a guide plate between the two groups of heating pipes, a ventilation passage is arranged between the end of the guide plate away from the exhaust port and the inner wall of the guide flow box, each of the heating pipes is arranged in a serpentine shape, and a heat preservation plate is internally and fixedly arranged on the top of the guide flow box.

[0012] Further, the guide flow box is internally fixed with a guide plate between the two groups of heating pipes, a ventilation passage is arranged between the end of the guide plate away from the exhaust port and the inner wall of the guide flow box, each of the heating pipes is arranged in a serpentine shape, and a heat preservation plate is internally and fixedly arranged on the top of the guide flow box.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a tunnel type lithium battery heating furnace, which can avoid the safety hidden trouble caused by too high hydrogen content and methane content in the furnace body, ensure the heating effect when gas flows in, solve the problem that the existing tunnel type lithium battery heating furnace cannot recycle the gas generated by lithium battery decomposition in time during use, and improve the safety during use.

[0015] 2、The utility model discloses a tunnel type lithium battery heating furnace, which can reduce the internal heat loss by moving the sealing door plates on both sides downward after a batch of waste lithium batteries enter the heating furnace body during heating, avoid the loss of methane and hydrogen generated by decomposition, and further improve the safety during use. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0017] Figure 1 It is a left side schematic view of the three-dimensional structure of the heating furnace according to an embodiment of the present application.

[0018] Figure 2 It isFigure 1 the right side of the three-dimensional structure of the heating furnace in the embodiment shown is shown;

[0019] Figure 3 Figure 1 the schematic diagram of the front view cross-section of the heating furnace structure in the embodiment shown is shown;

[0020] Figure 4 Figure 1 the schematic diagram of the partial structure of the heating furnace in the embodiment shown is shown.

[0021] The meanings of the reference numerals in the drawings are as follows: 1, conveying frame; 2, conveying belt; 3, heating furnace body; 4, flow guide box; 5, heating pipe; 6, exhaust port; 7, flow guide plate; 8, heat preservation plate; 9, air bellow; 10, exhaust valve; 11, air inlet valve; 12, air guide cover; 13, sealing cover; 14, filter screen; 15, support plate; 16, connecting frame; 17, servo air cylinder; 18, sealing door plate; 19, limiting sliding rod; 20, air guide port. DETAILED DESCRIPTION

[0022] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Referring to Figures 1 to 4 A tunnel type lithium battery heating furnace includes a conveying frame 1, a conveying belt 2 and a heating furnace body 3. A support plate 15 is attached to the top surface of the conveying belt 2 inside. The support plate 15 is fixed to the inner wall of the conveying frame 1 at the front and rear ends, and is used to support the waste lithium battery. A flow guide box 4 is fixed to the inside of the heating furnace body 3 near the discharging end of the conveying belt 2. Two groups of heating pipes 5 are arranged in the flow guide box 4. A flow guide plate 7 is fixed in the flow guide box 4 between the two groups of heating pipes 5. An air passage is formed between the end of the flow guide plate 7 away from the exhaust port 6 and the inner wall of the flow guide box 4. Each heating pipe 5 is in a serpentine shape. A heat preservation plate 8 is embedded and fixed to the top of the flow guide box 4. An exhaust port 6 is formed in the bottom of the flow guide box 4 near the discharging end of the conveying belt 2. The top surface of the flow guide box 4 near the discharging end of the conveying belt 2 is connected to the outside of the heating furnace body 3. An air bellow 9 is arranged in the heating furnace body 3 away from the exhaust port 6. The air bellow 9 is internally provided with a fan with an air inlet facing the conveying belt 2. The bottom of the air bellow 9 is connected to the top surface of the conveying belt 2. An air guide port 20 is connected to the top surface of the air bellow 9. The air guide port 20 is connected to a recovery tank through an air guide pipe. A sealing cover 13 is threadedly sleeved on the air guide cover 12 above the air inlet valve 11. A filter screen 14 is embedded and fixed to the top surface of the sealing cover 13. ​​

[0024] Specifically, when the waste lithium battery is heated, the lithium battery is placed on the top surface of the conveying belt 2 along the feeding end, and enters the inside of the heating furnace body 3 under the driving of the conveying belt 2. After a batch of lithium batteries enters the inside of the heating furnace body 3, and the inside of the heating furnace body 3 is closed, the heating pipe 5, the exhaust valve 10 and the air inlet valve 11 are opened, the inside of the air bellow 9 is driven to run, the airflow in the inside of the heating furnace body 3 is discharged, the airflow is filtered by the filter screen 14 and then enters the inside of the flow guide box 4 along the air inlet valve 11, and then goes back and forth in the inside of the flow guide box 4. When flowing, the heating pipe 5 heats the airflow, which is discharged through the exhaust port 6, moves towards the exhaust valve 10 side after being discharged, and is discharged through the exhaust valve 10. The hot airflow heats the lithium battery on the top surface of the conveying belt 2 in the process of moving from the air inlet valve 11 to the exhaust valve 10, and drives the hydrogen and methane gases generated when the lithium battery is heated and decomposed to be discharged, and enters the inside of the recovery box under the guidance of the air guide port 20.

[0025] As an optimization scheme, such as Figures 1 to 4 The heating furnace body 3 is covered with a connecting frame 16, the conveying frame 1 is provided with a servo cylinder 17 on the front and rear sides, the output ends of the servo cylinders 17 are fixed to the bottom surface of the connecting frame 16, the heating furnace body 3 is slidably provided with a sealing door plate 18 at both ends, the sealing door plate 18 is fixed to the bottom surface of the connecting frame 16, the flow guide box 4 is provided with an air inlet valve 11 above the end close to the exhaust port 6, the air inlet valve 11 is fixed with a gas guide cover 12 penetrating through the upper and lower ends, the gas guide cover 12 extends to the outside of the heating furnace body 3 and the inside of the flow guide box 4 respectively at the end away from the exhaust valve 10, the side of the flow guide box 4 below the air bellow 9 is fixed with a sealing plate, the air bellow 9 is provided with an exhaust valve 10 below and between the sealing plate, the exhaust valve 10 is fixed with another gas guide cover 12 penetrating through the upper and lower ends, and the end away from the exhaust valve 10 of the other gas guide cover 12 is fixed to the bottom surface of the air bellow 9 and the sealing plate respectively.

[0026] Specifically, after a batch of waste lithium batteries enters the inside of the heating furnace body 3, the connecting frame 16 is driven to move downward by the operation of the servo cylinders 17 on both sides, when the connecting frame 16 moves downward, the sealing door plate 18 is driven to slide downward on the limiting slide rod 19, so that the limiting slide rod 19 is attached to the top surface of the conveying belt 2, thereby sealing the two sides of the heating furnace body 3 to prevent a large amount of gas generated by decomposition from overflowing.

[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the essential elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0028] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those ordinarily skilled in the art should understand: the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A tunnel-type lithium battery heating furnace, characterized by: The utility model relates to a kind of waste lithium battery heating furnace, including conveying frame (1), conveying belt (2) and heating furnace body (3), the heating furnace body (3) inside is fixed with flow guide box (4) near the blanking end of conveying belt (2), two groups of heating pipes (5) are provided in the flow guide box (4), the bottom of the flow guide box (4) is close to the side of blanking end of conveying belt (2) and is equipped with exhaust port (6), the top surface of the flow guide box (4) is close to the top surface of blanking end of conveying belt (2) and is connected with the outside of heating furnace body (3) through, the inside of the heating furnace body (3) is equipped with wind box (9) away from one end of exhaust port (6), the inside of the wind box (9) is arranged as fan with air inlet towards conveying belt (2), the bottom of the wind box (9) is connected with the top surface of conveying belt (2) through, the top surface of the wind box (9) is connected with air guide (20) through.

2. The tunnel-type lithium battery heating furnace according to claim 1, characterized in that: The inside top surface of the conveying belt (2) is attached with a support plate (15), which is fixed to the inner wall of the conveying frame (1) at the front and rear ends, for supporting the waste lithium battery.

3. The tunnel-type lithium battery heating furnace according to claim 1, characterized in that: The outside of the heating furnace body (3) is covered with a connecting frame (16), and the conveying frame (1) is provided with a servo cylinder (17) on the front and rear sides. The output ends of the servo cylinders (17) are fixed to the bottom surface of the connecting frame (16). The heating furnace body (3) is slidingly attached with a sealing door plate (18) at both ends, which is fixed to the bottom surface of the connecting frame (16).

4. The tunnel-type lithium battery heating furnace according to claim 1, characterized in that: A flow guide plate (7) is fixed inside the flow guide box (4) between the two groups of heating pipes (5). An air passage is formed between the end of the flow guide plate (7) away from the exhaust port (6) and the inner wall of the flow guide box (4). Each heating pipe (5) is arranged in a serpentine shape. A heat preservation plate (8) is embedded and fixed to the top of the flow guide box (4).

5. The tunnel-type lithium battery heating furnace according to claim 1, characterized in that: An air inlet valve (11) is provided above the end of the flow guide box (4) close to the exhaust port (6). Air guide covers (12) are fixed to the upper and lower ends of the air inlet valve (11) through. The ends of the air guide covers (12) away from the exhaust valve (10) extend to the outside of the heating furnace body (3) and the inside of the flow guide box (4), respectively.

6. The tunnel-type lithium battery heating furnace according to claim 1, characterized in that: An enclosing plate is fixed to the side of the flow guide box (4) below the wind box (9). An exhaust valve (10) is provided between the wind box (9) below and the enclosing plate. Another air guide cover (12) is fixed to the upper and lower ends of the exhaust valve (10) through. The ends of the other air guide cover (12) away from the exhaust valve (10) are fixed to the bottom surface of the wind box (9) and the enclosing plate, respectively.

7. The tunnel-type lithium battery heating furnace according to claim 5, characterized by: The air guide (20) is connected to a recovery box through an air guide pipe. A sealing cover (13) is threadedly fitted to the air guide cover (12) above the air inlet valve (11). A filter screen (14) is embedded and fixed to the top surface of the sealing cover (13).

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