A device for recycling waste and old electronic metal by pyrolysis

Abstract

This application relates to a waste electronic metal pyrolysis recycling device, belonging to the technical field of electronic waste metal pyrolysis recycling. It includes a pyrolysis furnace, with a storage bin above the furnace. A first connecting pipe is fixedly connected to the bottom of the storage bin, and a second connecting pipe is fixedly connected to the bottom of the first connecting pipe. This application, by incorporating components such as an auger, a scale, and a solenoid valve, allows the reducing agent in the storage bin to fall into the second connecting pipe through the first connecting pipe during the pyrolysis of waste electronic materials. Starting a first motor drives a rotating rod and an auger to rotate, allowing the reducing agent to enter a measuring cylinder. The measuring cylinder and scale facilitate observation of the reducing agent level, thus allowing for determination of the dosage of reducing agent based on the amount of waste electronic materials. Opening the solenoid valve allows the third connecting pipe to input the reducing agent into the pyrolysis furnace, where it mixes with the waste electronic materials. This device enables the quantitative addition of reducing agent during the pyrolysis of waste electronic materials, significantly improving the metal recovery rate.

Description

Technical Field

[0001] This application relates to the field of electronic waste metal pyrolysis recycling technology, and in particular to a waste electronic metal pyrolysis recycling device. Background Technology

[0002] The rapid pace of electronic device upgrades has generated a large number of discarded electronic devices. These devices contain various metal resources such as gold, silver, copper, and iron. If they are not effectively recycled, they will not only waste resources but also cause serious environmental pollution.

[0003] An existing patent (publication number: CN203700460U) discloses an apparatus for recovering metals from waste enameled wire / waste printed circuit boards, including: a heating furnace, which includes at least one heating chamber; a nitrogen output unit; a compressed air output unit; a sealed container for holding raw materials, the sealed container being provided with an air inlet, a Venturi nozzle, and an oil and gas output pipe disposed inside the sealed container; the air inlet is connected to the output end of the nitrogen output unit, the end inlet of the Venturi nozzle is fixed to the sealed container and communicates with the inner cavity of the sealed container, and the end outlet extends to the heating chamber; the output end of the compressed air output unit is connected to the side air inlet of the Venturi nozzle; and a trolley for transporting the sealed container from outside the heating furnace to the heating chamber. This invention improves the metal recovery rate and simultaneously achieves secondary and complete combustion of the oil and gas generated by pyrolysis at temperatures above 850 degrees Celsius, which reduces environmental pollution and energy consumption.

[0004] However, it was found in the above scheme that the metal is easily oxidized in a high-temperature oxidizing environment, which leads to a decrease in the metal recovery rate and increases the difficulty of subsequent processing. Utility Model Content

[0005] The purpose of this application is to provide a waste electronic metal pyrolysis recycling device, which has the advantages of being able to quantitatively add reducing agents during the pyrolysis of waste electronic materials, thereby significantly improving the metal recovery rate. It solves the problem in the prior art that the metal is easily oxidized in the high-temperature oxidation environment during the pyrolysis of waste electronic materials, which leads to a decrease in the metal recovery rate and an increase in the difficulty of subsequent processing.

[0006] The waste electronic metal pyrolysis recycling device provided in this application adopts the following technical solution: it includes a pyrolysis furnace, a storage tank is provided above the pyrolysis furnace, a first connecting pipe is fixedly connected to the bottom surface of the storage tank, a second connecting pipe is fixedly connected to the bottom end of the first connecting pipe, a first motor is fixedly installed on the bottom surface of the second connecting pipe, a rotating rod is fixedly connected to the output shaft of the first motor, the outer surface of the rotating rod is rotatably connected to the inner wall of the second connecting pipe, an auger is fixedly installed on the outer surface of the rotating rod, a measuring cylinder is fixedly connected to the top end of the second connecting pipe, a scale is fixedly installed on the outer surface of the measuring cylinder, a third connecting pipe is fixedly connected to the bottom end of the measuring cylinder, a solenoid valve is fixedly installed on the outer surface of the third connecting pipe, and the bottom end of the third connecting pipe is fixedly connected to the upper surface of the pyrolysis furnace. The measuring cylinder is made of quartz glass.

[0007] By adopting the above technical solution, a storage tank is installed above the pyrolysis furnace to facilitate the storage of the reducing agent. A first connecting pipe and a second connecting pipe are connected, and the second connecting pipe is connected to a metering cylinder, allowing the reducing agent to enter the metering cylinder through the first and second connecting pipes. A first motor is installed on the bottom surface of the second connecting pipe, and a rotating rod is installed on the output shaft of the first motor, enabling the rotating rod to rotate. An auger is fixed on the surface of the rotating rod, so that when the auger rotates, it can transport the reducing agent inside the first connecting pipe to the inside of the metering cylinder. Made of transparent quartz glass, the metering cylinder allows operators to easily observe the level of the reducing agent on the scale and determine the dosage. This enables the addition of different dosages of reducing agent based on the amount of waste electronics, achieving quantitative addition. A solenoid valve allows the third connecting pipe to be opened, allowing the reducing agent inside the metering cylinder to fall into the pyrolysis furnace below. This allows the reducing agent to mix with the waste electronics inside the furnace, enabling the device to quantitatively add reducing agent during the pyrolysis of waste electronics, significantly improving the metal recovery rate.

[0008] Preferably, a retainer is fixedly connected to the outer surface of the storage hopper, and the bottom surface of the retainer is fixedly connected to the upper surface of the pyrolysis furnace.

[0009] By adopting the above technical solution, the retainer is installed on the outer surface of the storage tank, and the bottom surface of the retainer is fixed to the upper surface of the pyrolysis furnace, thereby realizing the installation of the retainer and supporting the storage tank.

[0010] Preferably, a sealing cap is fixedly installed on the upper surface of the storage hopper.

[0011] By adopting the above technical solution, a sealing cover is installed on the upper surface of the storage tank to achieve the installation of the sealing cover. The opening and closing of the sealing cover and the storage tank facilitates the replenishment of reducing agent into the storage tank.

[0012] Preferably, a feed pipe is fixedly connected to the upper surface of the pyrolysis furnace, and an exhaust pipe is fixedly connected to the upper surface of the pyrolysis furnace.

[0013] By adopting the above technical solution, the feed pipe is installed on the upper surface of the pyrolysis furnace, which facilitates the addition of waste electronic raw materials to the pyrolysis furnace. The exhaust pipe is also set on the upper surface of the pyrolysis furnace and connected to the pyrolysis furnace, so that the waste gas generated during the pyrolysis process can be discharged through the exhaust pipe.

[0014] Preferably, a discharge pipe is fixedly connected to the bottom surface of the pyrolysis furnace, and a support frame is fixedly connected to the outer surface of the pyrolysis furnace.

[0015] By adopting the above technical solution, a discharge pipe is set on the bottom surface of the pyrolysis furnace to facilitate the discharge of the pyrolysis powder. A support frame is set on the outer surface of the pyrolysis furnace, and multiple feet are set on the bottom surface of the support frame to support the pyrolysis furnace.

[0016] Preferably, a second motor is fixedly connected to the bottom surface of the pyrolysis furnace.

[0017] By adopting the above technical solution, the second motor is installed on the bottom surface of the pyrolysis furnace and set as a fixed connection to achieve the installation of the second motor.

[0018] Preferably, the output shaft of the second motor is fixedly connected to a connecting rod, and the outer surface of the connecting rod is rotatably connected to the inner wall of the pyrolysis furnace.

[0019] By adopting the above technical solution, a connecting rod is installed on the output shaft of the second motor and fixed to the output shaft of the second motor, so that the second motor can drive the connecting rod to rotate, and rotate the surface of the connecting rod against the inner wall of the pyrolysis furnace, thereby achieving the limiting effect of the connecting rod.

[0020] Preferably, the outer surface of the connecting rod is fixedly connected with mounting blocks arranged at equal intervals, and the outer surface of each mounting block is fixedly connected with stirring rods arranged at equal intervals.

[0021] By adopting the above technical solution, the mounting block is installed on the outer surface of the connecting rod and set as a fixed connection. A stirring rod is installed on the surface of the mounting block, so that the connecting rod can drive the mounting block and the stirring rod to rotate. This allows the stirring rod to stir the waste electrons in the pyrolysis furnace, so that the waste electrons and the added reducing agent can be fully mixed.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] This waste electronic metal pyrolysis recycling device, equipped with components such as an auger, a scale, and a solenoid valve, allows for efficient pyrolysis of waste electronic materials. During pyrolysis, the reducing agent in the storage tank flows through a first connecting pipe into a second connecting pipe. A first motor is activated, driving a rotating rod and an auger to rotate, allowing the reducing agent to enter a metering cylinder. The metering cylinder and scale facilitate observation of the reducing agent level, enabling the determination of the correct dosage based on the amount of waste electronic materials. Opening the solenoid valve allows the third connecting pipe to introduce the reducing agent into the pyrolysis furnace, where it mixes with the waste electronic materials. This device enables the quantitative addition of reducing agent during the pyrolysis process, significantly improving the metal recovery rate. Activating the second motor rotates a connecting rod, which in turn rotates a mounting block on its surface. The mounting block, fixedly connected to a stirring rod, drives the stirring rod to rotate, thus mixing the waste electronic materials and the reducing agent. This ensures thorough mixing, improving pyrolysis reaction efficiency and product quality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the entire application in three dimensions;

[0025] Figure 2 This is a schematic diagram of the overall front view of this application;

[0026] Figure 3 This is a schematic diagram showing the connection between the pyrolysis furnace and the second motor in this application;

[0027] Figure 4 This is a structural diagram illustrating the connection relationship between the mounting block and the stirring rod in this application.

[0028] Figure 5 This is a schematic diagram of the connection between the rotating rod and the auger in this application.

[0029] In the picture:

[0030] 1. Pyrolysis furnace; 2. Storage tank; 3. First connecting pipe; 4. Second connecting pipe; 5. First motor; 6. Rotating rod; 7. Screwdriver; 8. Measuring cylinder; 9. Scale; 10. Solenoid valve; 11. Third connecting pipe; 12. Sealing cap; 13. Holder; 14. Feed pipe; 15. Exhaust pipe; 16. Discharge pipe; 17. Support frame; 18. Second motor; 19. Connecting rod; 20. Mounting block; 21. Stirring rod. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0032] Example 1: A waste electronic metal pyrolysis recycling device, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 5 The system includes a pyrolysis furnace 1, a storage tank 2 located above the pyrolysis furnace 1, a first connecting pipe 3 fixedly connected to the bottom of the storage tank 2, a second connecting pipe 4 fixedly connected to the bottom end of the first connecting pipe 3, a first motor 5 fixedly mounted on the bottom of the second connecting pipe 4, a rotating rod 6 fixedly connected to the output shaft of the first motor 5, the outer surface of the rotating rod 6 rotatably connected to the inner wall of the second connecting pipe 4, an auger 7 fixedly mounted on the outer surface of the rotating rod 6, and a metering cylinder 8 fixedly connected to the top end of the second connecting pipe 4. The storage tank 2 is located above the pyrolysis furnace 1, allowing for the efficient dispensing of materials through the storage tank 2. For storing the reducing agent, a first connecting pipe 3 and a second connecting pipe 4 are connected, and the second connecting pipe 4 is connected to a measuring cylinder 8. This allows the reducing agent to enter the measuring cylinder 8 through the first connecting pipe 3 and the second connecting pipe 4. A first motor 5 is installed on the bottom surface of the second connecting pipe 4, and a rotating rod 6 is mounted on the output shaft of the first motor 5, allowing the rotating rod 6 to rotate. An auger 7 is fixed to the surface of the rotating rod 6, so that when the auger 7 rotates, it can transport the reducing agent inside the first connecting pipe 3 to the inside of the measuring cylinder 8.

[0033] Please see Figure 1 , Figure 2 and Figure 5 A scale 9 is fixedly installed on the outer surface of the measuring cylinder 8. A third connecting pipe 11 is fixedly connected to the bottom of the measuring cylinder 8. A solenoid valve 10 is fixedly installed on the outer surface of the third connecting pipe 11. The bottom of the third connecting pipe 11 is fixedly connected to the upper surface of the pyrolysis furnace 1. The measuring cylinder 8 is made of quartz glass and is transparent. By installing the scale 9 on the surface of the measuring cylinder 8, the operator can easily observe the height of the reducing agent on the scale 9, thereby judging the dosage of the reducing agent. It is convenient to add different dosages of reducing agent according to the amount of waste electrons, so as to achieve quantitative addition of reducing agent. The solenoid valve 10 is set to open the third connecting pipe 11, so that the reducing agent inside the measuring cylinder 8 can fall into the pyrolysis furnace 1 below, so that the reducing agent can mix with the waste electrons inside the pyrolysis furnace 1. This device can quantitatively add reducing agent during the pyrolysis of waste electrons, significantly improving the metal recovery rate.

[0034] Example 2: A waste electronic metal pyrolysis recycling device, please refer to [link / reference]. Figure 1 , Figure 2 and Figure 3A retainer 13 is fixedly connected to the outer surface of the storage tank 2. The bottom surface of the retainer 13 is fixedly connected to the upper surface of the pyrolysis furnace 1. The retainer 13 is installed on the outer surface of the storage tank 2 and the bottom surface of the retainer 13 is fixed to the upper surface of the pyrolysis furnace 1 to realize the installation of the retainer 13. The retainer 13 can support the storage tank 2. A sealing cover 12 is fixedly installed on the upper surface of the storage tank 2. The sealing cover 12 is installed on the upper surface of the storage tank 2 to realize the installation of the sealing cover 12. The opening and closing of the sealing cover 12 and the storage tank 2 facilitates the replenishment of reducing agent into the storage tank 2.

[0035] Please see Figure 2 , Figure 3 and Figure 4 A feed pipe 14 is fixedly connected to the upper surface of the pyrolysis furnace 1, and an exhaust pipe 15 is also fixedly connected to the upper surface of the pyrolysis furnace 1. The feed pipe 14 is installed on the upper surface of the pyrolysis furnace 1 to facilitate the addition of waste electronic raw materials to the pyrolysis furnace 1. The exhaust pipe 15 is set on the upper surface of the pyrolysis furnace 1 and is also connected to the pyrolysis furnace 1, so that the waste gas generated during the pyrolysis process can be discharged through the exhaust pipe 15. A discharge pipe 16 is fixedly connected to the bottom surface of the pyrolysis furnace 1, and a support frame 17 is fixedly connected to the outer surface of the pyrolysis furnace 1. The discharge pipe 16 is set on the bottom surface of the pyrolysis furnace 1 to facilitate the discharge of the pyrolysis powder. The support frame 17 is set on the outer surface of the pyrolysis furnace 1, and multiple legs are set on the bottom surface of the support frame 17 so that the support frame 17 can support the pyrolysis furnace 1.

[0036] Please see Figure 2 , Figure 3 and Figure 4 A second motor 18 is fixedly connected to the bottom surface of the pyrolysis furnace 1. The second motor 18 is mounted on the bottom surface of the pyrolysis furnace 1 in a fixed connection. A connecting rod 19 is fixedly connected to the output shaft of the second motor 18. The outer surface of the connecting rod 19 is rotatably connected to the inner wall of the pyrolysis furnace 1. The connecting rod 19 is mounted on the output shaft of the second motor 18 and fixed to the output shaft of the second motor 18, allowing the second motor 18 to drive the connecting rod 19 to rotate. This causes the surface of the connecting rod 19 to rotate against the inner wall of the pyrolysis furnace 1, achieving... To limit the positioning effect of the connecting rod 19, mounting blocks 20 arranged at equal intervals are fixedly connected to the outer surface of the connecting rod 19. Each mounting block 20 is fixedly connected to the outer surface of the mounting block 20 with stirring rods 21 arranged at equal intervals. The mounting blocks 20 are installed on the outer surface of the connecting rod 19 to form a fixed connection, and the stirring rods 21 are installed on the surface of the mounting blocks 20, so that the connecting rod 19 can drive the mounting blocks 20 and the stirring rods 21 to rotate. This allows the stirring rods 21 to stir the waste electrons in the pyrolysis furnace 1, so that the waste electrons and the added reducing agent can be fully mixed.

[0037] The implementation principle of this application embodiment is as follows: When pyrolyzing waste electronics, the waste electronics are fed into the pyrolysis furnace 1 through the feed pipe 14 for pyrolysis. At this time, the reducing agent in the storage tank 2 falls into the second connecting pipe 4 through the first connecting pipe 3. By starting the first motor 5, the rotating rod 6 and the auger 7 are driven to rotate, so that the reducing agent enters the metering cylinder 8. The height of the reducing agent is easily observed through the transparent metering cylinder 8 and the scale 9, so that the dosage of reducing agent added can be easily determined according to the amount of waste electronics. Then, the solenoid valve 10 is opened so that the third connecting pipe 11 can input the reducing agent into the pyrolysis furnace 1, realizing... This device can quantitatively add reducing agent during the pyrolysis of waste electronics, significantly improving the metal recovery rate. After the reducing agent is added, the second motor 18 is started to drive the connecting rod 19 to rotate. The connecting rod 19 drives the mounting block 20 on the surface to rotate, and the mounting block 20 drives the stirring rod 21 to rotate, thereby stirring the waste electronics and reducing agent. This ensures that the waste electronics and reducing agent are fully mixed, thereby improving the pyrolysis reaction efficiency and product quality. During the pyrolysis process, the waste gas generated is discharged through the exhaust pipe 15 above. After the pyrolysis is completed, the powder material is discharged through the discharge pipe 16.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waste electronic metal pyrolysis recycling device, comprising a pyrolysis furnace (1), characterized in that: A storage tank (2) is provided above the pyrolysis furnace (1). The bottom surface of the storage tank (2) is fixedly connected to a first connecting pipe (3). The bottom end of the first connecting pipe (3) is fixedly connected to a second connecting pipe (4). The bottom surface of the second connecting pipe (4) is fixedly installed with a first motor (5). The output shaft of the first motor (5) is fixedly connected to a rotating rod (6). The outer surface of the rotating rod (6) is rotatably connected to the inner wall of the second connecting pipe (4). The outer surface of the rotating rod (6) is fixedly installed with an auger (7). The top end of the second connecting pipe (4) is fixedly connected to a metering cylinder (8). The outer surface of the metering cylinder (8) is fixedly installed with a scale (9). The bottom end of the metering cylinder (8) is fixedly connected to a third connecting pipe (11). The outer surface of the third connecting pipe (11) is fixedly installed with a solenoid valve (10). The bottom end of the third connecting pipe (11) is fixedly connected to the upper surface of the pyrolysis furnace (1). The metering cylinder (8) is made of quartz glass.

2. The waste electronic metal pyrolysis recycling device according to claim 1, characterized in that: A retainer (13) is fixedly connected to the outer surface of the storage hopper (2), and the bottom surface of the retainer (13) is fixedly connected to the upper surface of the pyrolysis furnace (1).

3. The waste electronic metal pyrolysis recycling device according to claim 1, characterized in that: A sealing cap (12) is fixedly installed on the upper surface of the storage hopper (2).

4. The waste electronic metal pyrolysis recycling device according to claim 1, characterized in that: The upper surface of the pyrolysis furnace (1) is fixedly connected to a feed pipe (14), and the upper surface of the pyrolysis furnace (1) is fixedly connected to an exhaust pipe (15).

5. The waste electronic metal pyrolysis recycling device according to claim 1, characterized in that: The bottom surface of the pyrolysis furnace (1) is fixedly connected to a discharge pipe (16), and the outer surface of the pyrolysis furnace (1) is fixedly connected to a support frame (17).

6. The waste electronic metal pyrolysis recycling device according to claim 1, characterized in that: The bottom surface of the pyrolysis furnace (1) is fixedly connected to a second motor (18).

7. The waste electronic metal pyrolysis recycling device according to claim 6, characterized in that: The output shaft of the second motor (18) is fixedly connected to a connecting rod (19), and the outer surface of the connecting rod (19) is rotatably connected to the inner wall of the pyrolysis furnace (1).

8. The waste electronic metal pyrolysis recycling device according to claim 7, characterized in that: The outer surface of the connecting rod (19) is fixedly connected with mounting blocks (20) arranged at equal intervals, and the outer surface of each mounting block (20) is fixedly connected with stirring rods (21) arranged at equal intervals.

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