Melting device for extracting precious metal from waste circuit board

Abstract

The utility model relates to the technical field of waste circuit board recovery, and discloses a melting device for waste circuit board precious metal extraction, which comprises a bottom shell, the top surface of the bottom shell is fixedly connected with a crushing shell, and a hot melting device is arranged in the bottom shell. According to the melting device for extracting the precious metal from the waste circuit board, a filter plate, a second motor, a material baffle, a second rotating shaft, a stirring plate, a gear, a discharging pipe and crushing teeth are arranged, the second motor is started, the gear is used for driving the second rotating shaft to rotate, the crushing teeth crush the circuit board, and meanwhile an output shaft of the second motor drives the stirring plate to rotate; a stirring plate pushes the crushed circuit board to the position above crushing teeth, so that the device repeatedly crushes the circuit board, the crushing effect of the device on the circuit board is improved, and the melting speed of the circuit board is increased; by arranging the hot melting tank, the first motor, the worm, the first rotating shaft and the worm gear, an output shaft of the first motor drives the worm to rotate and drives the worm gear, the rotating shaft and the hot melting tank to rotate, and discharging of the hot melting tank is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of recycling waste circuit boards, in particular to a melting device for extracting precious metals from waste circuit boards. Background Art

[0002] The names of circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum base board, high-frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin circuit board. Waste circuit boards contain more metals, and directly discarding them will cause a waste of resources.

[0003] A Chinese patent discloses a melting device for extracting precious metals from waste circuit boards, with the publication number CN215251082U, comprising a melting seat, a placement railing provided on the inner side of the melting seat, a guide cone fixedly connected to the bottom end of the placement railing, a heating melt machine slidably connected to the inner side of the melting seat, a left end of the heating melt machine on the left side and a right end of the heating melt machine on the right side are both fixedly connected to springs. In the utility model, by providing components such as a heating melt machine, a spring, and a transmission rod, the heating melt machine is started to heat the precious metals on the waste circuit boards, and under the elastic force of the spring, the heating melt machine is driven to slide out from the inner side of the melting seat, so that the heating melt machine and the waste circuit boards are closer, which facilitates the heating of the waste circuit boards and realizes the extraction of precious metals from the waste circuit boards.

[0004] However, it still has the following disadvantages: the device uses a heating melter to directly heat the circuit board, so that the circuit board melts inside the heating melter, but the circuit boards are of different sizes. When a large circuit board enters the heating melter, the bottom is first melted and then slowly sinks and melts, making the circuit board melt slowly. Therefore, we propose a melting device for extracting precious metals from waste circuit boards to solve this problem. Utility Model Content

[0005] The utility model aims to provide a melting device for extracting precious metals from waste circuit boards to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a melting device for extracting precious metals from waste circuit boards, comprising a bottom shell, a crushing shell is fixedly connected to the top surface of the bottom shell, a hot melting device is arranged inside the bottom shell, and the hot melting device comprises a hot melting part;

[0007] The hot melt part includes a hot melt tank and a first rotating shaft, the outer surface of the hot melt tank is fixedly connected to the outer surface of the first rotating shaft, and the outer surface of the first rotating shaft is rotatably connected to the inner wall of the bottom shell through a bearing seat;

[0008] A crushing part is arranged inside the crushing shell;

[0009] The crushing part includes a second motor and a second rotating shaft. The back side of the second motor is fixedly connected to the front side of the crushing shell. The outer surface of the rear end of the second motor output shaft rotates through the first bearing, penetrates the front side of the crushing shell and extends to the rear side of the crushing shell. The outer surface of the rear end of the second rotating shaft rotates through the second bearing, penetrates the inner wall of the crushing shell and extends to the rear side of the crushing shell. Crushing teeth are fixedly sleeved on the outer surfaces of the second motor output shaft and the second rotating shaft.

[0010] A further improvement is that the hot melt part also includes a first motor, a worm and a worm wheel, the back of the first motor is fixedly connected to the inner wall of the bottom shell, the worm wheel is fixedly sleeved on the outer surface of the first rotating shaft on the left side, the back of the first motor is fixedly connected to the inner wall of the bottom shell, the back of the worm is fixedly connected to the front of the output shaft of the first motor, the outer surface of the worm is meshingly connected to the outer surface of the worm wheel, and by arranging the first motor, the first rotating shaft, the worm and the worm wheel, the first motor is started, so that the worm drives the worm wheel to rotate, which is convenient for discharging the hot melt tank.

[0011] A further improvement is that the crushing part also includes a discharge pipe, a filter plate, a baffle plate, a stirring plate, gears and a pull rod, and the two gears are fixedly mounted on the outer surface of the second motor output shaft and the outer surface of the second rotating shaft respectively, and the two gear outer surfaces are meshed and connected with each other. By setting the second motor, the second rotating shaft, gears and crushing teeth, the second motor is started to drive the crushing teeth to crush the circuit board.

[0012] A further improvement is that the bottom surface of the discharge pipe is fixedly connected to the bottom surface of the crushing shell, and the outer surface of the filter plate is fixedly connected to the inner wall of the discharge pipe. By setting the discharge pipe and the filter plate, the filter plate is used to screen the circuit board.

[0013] A further improvement is that the stirring plate is fixedly sleeved on the outer surface of the second motor output shaft, and the outer surface of the stirring plate is slidably connected to the inner wall of the crushing shell. By setting the stirring plate, the stirring plate guides the crushed circuit board to the top of the crushing teeth for re-crushing.

[0014] A further improvement is that the outer surface of the left end of the pull rod slides through the inner wall of the bottom shell and extends to the left side of the bottom shell, the right end surface of the pull rod is fixedly connected to the left end surface of the baffle plate, and the outer surface of the right end of the baffle plate slides through the left end surface of the discharge pipe and extends to the inside of the discharge pipe. By setting a baffle and a pull rod, the discharge of the discharge pipe is controlled by pulling the pull rod and the baffle.

[0015] A further improvement is that a feed funnel is fixedly connected to the top surface of the crushing shell, and the inner wall of the feed funnel is rotatably connected to a baffle through a pin. The right end surface of the left baffle is fixedly connected to a spring, and the right end of the spring is fixedly connected to the left end surface of the right baffle. By arranging a feed funnel, a spring and a baffle, the elastic force of the spring is utilized to make the baffle block the top of the feed funnel to prevent fragments of the circuit board from popping up during the crushing process.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the melting device for extracting precious metals from waste circuit boards is provided with a filter plate, a second motor, a material baffle plate, a second rotating shaft, a stirring plate, a gear, a discharge pipe, a pull rod and crushing teeth, the second motor is started, the gear is used to drive the second rotating shaft to rotate, so that the crushing teeth crush the circuit board, and at the same time, the second motor output shaft drives the stirring plate to rotate, the stirring plate pushes the crushed circuit board to the top of the crushing teeth, so that the device repeatedly crushes the circuit board, improves the crushing effect of the device on the circuit board, and accelerates the melting speed of the circuit board; by providing a hot melt tank, a first motor, a worm, a first rotating shaft and a worm wheel, the first motor is started, the output shaft of the first motor drives the worm to rotate, drives the worm wheel, the rotating shaft and the hot melt tank to rotate, and facilitates the discharge of the hot melt tank; by providing a feed hopper, a baffle and a spring, the elastic force of the spring is used to make the outer surface of the baffle close to the inner wall of the feed funnel, so as to prevent debris from popping up from the feed funnel when the device is broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 for Figure 1 A magnified view of the structure at center;

[0019] Figure 3 This is a sectional view of the three-dimensional structure of the crushing part of the utility model;

[0020] Figure 4 for Figure 3 A magnified view of the structure at B in the middle;

[0021] Figure 5 It is a left side cross-sectional view of the three-dimensional structure of the crushing part of the utility model.

[0022] In the figure: 1 bottom shell, 2 crushing shell, 3 hot melting device, 31 hot melting part, 32 crushing part, 301 feeding funnel, 302 baffle, 303 spring, 311 hot melting tank, 312 first motor, 313 worm, 314 first rotating shaft, 315 worm wheel, 321 filter plate, 322 second motor, 323 baffle plate, 324 second rotating shaft, 325 stirring plate, 326 gear, 327 discharge pipe, 328 pull rod, 329 crushing teeth. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 The utility model provides a technical solution: a melting device for extracting precious metals from waste circuit boards, comprising a bottom shell 1, a crushing shell 2 is fixedly connected to the top surface of the bottom shell 1, a hot melting device 3 is arranged inside the bottom shell 1, and the hot melting device 3 includes a hot melting part 31;

[0025] The hot melt part 31 includes a hot melt tank 311 and a first rotating shaft 314. The outer surface of the hot melt tank 311 is fixedly connected to the outer surface of the first rotating shaft 314. The outer surface of the first rotating shaft 314 is rotatably connected to the inner wall of the bottom shell 1 through a bearing seat. The hot melt part 31 also includes a first motor 312, a worm 313 and a worm wheel 315.

[0026] The back of the first motor 312 is fixedly connected to the inner wall of the bottom shell 1, and the worm gear 315 is fixedly sleeved on the outer surface of the first rotating shaft 314 on the left side. The back of the first motor 312 is fixedly connected to the inner wall of the bottom shell 1, and the back of the worm 313 is fixedly connected to the front of the output shaft of the first motor 312. The outer surface of the worm 313 is meshed with the outer surface of the worm gear 315. By setting the hot melt tank 311, the first motor 312, the worm 313, the first rotating shaft 314 and the worm gear 315, the first motor 312 is started, and the output shaft of the first motor 312 drives the worm 313 to rotate, and drives the worm gear 315, the rotating shaft and the hot melt tank 311 to rotate, so as to facilitate the discharge of the hot melt tank 311;

[0027] A crushing part 32 is provided inside the crushing shell 2;

[0028] The crushing part 32 includes a second motor 322 and a second rotating shaft 324, the back of the second motor 322 is fixedly connected to the front of the crushing shell 2, the outer surface of the rear end of the output shaft of the second motor 322 rotates through the first bearing to penetrate the front of the crushing shell 2 and extend to the rear of the crushing shell 2, the outer surface of the rear end of the second rotating shaft 324 rotates through the second bearing to penetrate the inner wall of the crushing shell 2 and extend to the rear of the crushing shell 2, the outer surface of the output shaft of the second motor 322 and the outer surface of the second rotating shaft 324 are fixedly sleeved with crushing teeth 329, the crushing part 32 also includes a discharge pipe 327, a filter plate 321, a baffle plate 323, a stirring plate 325, a gear 326 and a pull rod 328, the two gears 326 are fixedly sleeved on the outer surface of the output shaft of the second motor 322 and the outer surface of the second rotating shaft 324, and the outer surfaces of the two gears 326 are meshed and connected with each other;

[0029] The bottom surface of the discharge pipe 327 is fixedly connected with the bottom surface of the crushing shell 2, the outer surface of the filter plate 321 is fixedly connected with the inner wall of the discharge pipe 327, the stirring plate 325 is fixedly sleeved on the outer surface of the output shaft of the second motor 322, and the outer surface of the stirring plate 325 is slidably connected with the inner wall of the crushing shell 2;

[0030] The outer surface of the left end of the pull rod 328 slides through the inner wall of the bottom shell 1 and extends to the left side of the bottom shell 1, the right end surface of the pull rod 328 is fixedly connected to the left end surface of the material baffle plate 323, and the outer surface of the right end of the material baffle plate 323 slides through the left end surface of the discharge pipe 327 and extends to the inside of the discharge pipe 327. By setting the filter plate 321, the second motor 322, the material baffle plate 323, the second rotating shaft 324, the stirring plate 325, the gear 326, the discharge pipe 327, the pull rod 328 and the crushing tooth 329, the second motor 322 is started, and the gear 326 is used to drive the second rotating shaft 324 to rotate, so that the crushing tooth 329 crushes the circuit board. At the same time, the output shaft of the second motor 322 drives the stirring plate 325 to rotate, and the stirring plate 325 pushes the crushed circuit board 325 to the top of the crushing tooth 329, so that the device repeatedly crushes the circuit board, improves the crushing effect of the device on the circuit board, and accelerates the melting speed of the circuit board;

[0031] A feed hopper 301 is fixedly connected to the top surface of the crushing shell 2, a baffle 302 is rotatably connected to the inner wall of the feed hopper 301 through a pin, a spring 303 is fixedly connected to the right end surface of the left baffle 302, and the right end of the spring 303 is fixedly connected to the left end surface of the right baffle 302. By arranging the feed funnel 301, the baffle 302 and the spring 303, the elastic force of the spring 303 is utilized to make the outer surface of the baffle 302 close to the inner wall of the feed funnel 301, so as to prevent debris from being ejected upward from the feed funnel 301 when the device is crushed.

[0032] When in use, start the second motor 322, and use the two gears 326 to make the second motor 322 drive the second rotating shaft 324 to rotate, so that the output shaft of the second motor 322 and the second rotating shaft 324 drive the crushing teeth 329 to crush the waste circuit boards, and the output shaft of the second motor 322 drives the stirring plate 325 to rotate, and the stirring plate 325 pushes the crushed circuit boards onto the crushing teeth 329 for multiple crushing, and pulls the pull rod 328 to the left to drive the baffle plate 323 to move to the left, so that the circuit boards fall downward into the hot melt tank 311. After the hot melting is completed, start the first motor 312, and the output shaft of the first motor 312 drives the worm 313 to rotate, and the worm 313 drives the worm wheel 315 to rotate, and the worm wheel 315 drives the rotating shaft 314 and the hot melt tank 311 to rotate to discharge the material.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A melting device for extracting precious metals from waste circuit boards, comprising a bottom shell (1), characterized in that: The top surface of the bottom shell (1) is fixedly connected to a crushing shell (2), a hot-melt device (3) is arranged inside the bottom shell (1), and the hot-melt device (3) comprises a hot-melt portion (31); The hot melt portion (31) comprises a hot melt tank (311) and a first rotating shaft (314); the outer surface of the hot melt tank (311) is fixedly connected to the outer surface of the first rotating shaft (314); and the outer surface of the first rotating shaft (314) is rotatably connected to the inner wall of the bottom shell (1) via a bearing seat; The crushing shell (2) is provided with a crushing part (32) inside; The crushing part (32) comprises a second motor (322) and a second rotating shaft (324); the back side of the second motor (322) is fixedly connected to the front side of the crushing shell (2); the rear end outer surface of the output shaft of the second motor (322) rotates through the first bearing to penetrate the front side of the crushing shell (2) and extends to the rear side of the crushing shell (2); the rear end outer surface of the second rotating shaft (324) rotates through the second bearing to penetrate the inner wall of the crushing shell (2) and extends to the rear side of the crushing shell (2); the outer surface of the output shaft of the second motor (322) and the outer surface of the second rotating shaft (324) are both fixedly sleeved with crushing teeth (329).

2. A melting device for extracting precious metals from waste circuit boards according to claim 1, characterized in that: The hot melt portion (31) further comprises a first motor (312), a worm (313) and a worm wheel (315); the back of the first motor (312) is fixedly connected to the inner wall of the bottom shell (1); the worm wheel (315) is fixedly sleeved on the outer surface of the left first rotating shaft (314); the back of the first motor (312) is fixedly connected to the inner wall of the bottom shell (1); the back of the worm (313) is fixedly connected to the front of the output shaft of the first motor (312); and the outer surface of the worm (313) is meshingly connected to the outer surface of the worm wheel (315).

3. The melting device for extracting precious metals from waste circuit boards according to claim 1, characterized in that: The crushing part (32) also includes a discharge pipe (327), a filter plate (321), a material blocking plate (323), a stirring plate (325), a gear (326) and a pull rod (328), and the two gears (326) are respectively fixedly mounted on the outer surface of the output shaft of the second motor (322) and the outer surface of the second rotating shaft (324), and the outer surfaces of the two gears (326) are meshed and connected with each other.

4. A melting device for extracting precious metals from waste circuit boards according to claim 3, characterized in that: The bottom surface of the discharge pipe (327) is fixedly connected to the bottom surface of the crushing shell (2), and the outer surface of the filter plate (321) is fixedly connected to the inner wall of the discharge pipe (327).

5. The melting device for extracting precious metals from waste circuit boards according to claim 3, characterized in that: The stirring plate (325) is fixedly sleeved on the outer surface of the output shaft of the second motor (322), and the outer surface of the stirring plate (325) is slidably connected to the inner wall of the crushing shell (2).

6. The melting device for extracting precious metals from waste circuit boards according to claim 3, characterized in that: The outer surface of the left end of the pull rod (328) slides through the inner wall of the bottom shell (1) and extends to the left side of the bottom shell (1), the right end surface of the pull rod (328) is fixedly connected to the left end surface of the baffle plate (323), and the outer surface of the right end of the baffle plate (323) slides through the left end surface of the discharge pipe (327) and extends to the inside of the discharge pipe (327).

7. The melting device for extracting precious metals from waste circuit boards according to claim 1, characterized in that: The top surface of the crushing shell (2) is fixedly connected with a feed hopper (301), and the inner wall of the feed hopper (301) is rotatably connected with a baffle (302) via a pin. The right end surface of the left baffle (302) is fixedly connected with a spring (303), and the right end of the spring (303) is fixedly connected to the left end surface of the right baffle (302).

Images