Refined precious metal recovery equipment for circuit board

Abstract

The utility model relates to the technical field of metal recovery equipment, in particular to refined precious metal recovery equipment for a circuit board, which comprises a precious metal separation cylinder for circuit board metal recovery, support legs are fixedly mounted at the bottom of the precious metal separation cylinder, and a buoyancy adjusting mechanism is mounted on the side wall of the precious metal separation cylinder; the buoyancy adjusting mechanism comprises a communication groove, a lateral filtering membrane is installed at the inner side end of the communication groove, an installation cylinder is fixedly installed on the upper side of the communication groove, a pressure sensor is installed on the inner side of the installation cylinder, a telescopic cylinder is fixedly installed at the bottom of the pressure sensor, and a standard buoyancy block is fixedly installed at the lower side end of the telescopic cylinder. By means of the buoyancy adjusting mechanism, accurate adjustment of water buoyancy is achieved, the layering phenomenon of resin powder and metal powder in water can be more obvious by increasing the water buoyancy to approach to the intermediate value between the density of resin and the density of metal, the content of resin in the separated metal powder is low, and the separation efficiency is improved. And the separation purity of the metal powder is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal recycling equipment technology, and in particular to a refined precious metal recycling equipment for circuit boards. Background Technology

[0002] Waste circuit boards generally contain a high content of metal elements, which need to be recycled using processing equipment to improve the resource recycling rate.

[0003] Existing methods for refining precious metals from circuit boards typically involve first crushing the circuit board, which then produces a metal-resin mixture. This mixture is subsequently added to water, and buoyancy is used to separate the metal and resin particles. The denser metal powder sinks, while the less dense resin powder floats. Because the density of the resin is close to that of water, the stratification effect is not obvious, resulting in low purity of the separated metal powder, which requires further purification. To address the shortcomings of existing technologies, we propose a refined precious metal recovery device for circuit boards. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a refined precious metal recycling device for circuit boards.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A precious metal recycling device for circuit boards includes a precious metal separation cylinder for recycling circuit board metals. Support legs are fixedly installed at the bottom of the precious metal separation cylinder, and a buoyancy adjustment mechanism is installed on the side wall of the precious metal separation cylinder. The buoyancy adjustment mechanism includes a connecting groove, a lateral filter membrane installed at the inner end of the connecting groove, an installation cylinder fixedly installed on the upper side of the connecting groove, a pressure sensor installed inside the installation cylinder, a telescopic cylinder fixedly installed at the bottom of the pressure sensor, a standard buoyancy block fixedly installed at the lower end of the telescopic cylinder, a spring sleeved on the outer side of the telescopic cylinder, a sodium chloride storage cone provided on the upper side of the connecting groove, a discharge pipe fixedly installed at the bottom of the sodium chloride storage cone, a flow control valve installed on the discharge pipe, and a controller fixedly installed on the outer wall of the precious metal separation cylinder.

[0007] Furthermore, a mounting base is fixedly installed on the upper side of the precious metal separation cylinder, and the sodium chloride storage cone is fixedly installed on the upper side of the mounting base.

[0008] Furthermore, the connecting groove extends into the inner side of the precious metal separation cylinder, and a sealing ring is provided at the junction of the connecting groove and the precious metal separation cylinder.

[0009] Furthermore, an installation arc plate is fixedly installed on the outside of the connecting groove, and the installation arc plate is screwed onto the outer wall of the precious metal separation cylinder.

[0010] Further, the installation cylinder upper side is screwed with a sealed rotary cover, the installation cylinder inner side is installed with a sealing gasket, the sealing gasket is located on the pressure sensor upper side, and the pressure sensor outer side is provided with an anti-corrosion film.

[0011] Further, a plurality of driving motors are fixedly installed on the side wall of the precious metal separation cylinder, a rotating shaft is fixedly installed on the output end of the driving motor, and a plurality of stirring blades are circumferentially and equidistantly installed on the inner end of the rotating shaft.

[0012] Further, the telescopic cylinder and the spring are both made of aluminum alloy.

[0013] Further, the precious metal separation cylinder bottom is installed with a discharge pipe, an electromagnetic valve is fixedly installed on the discharge pipe, a mounting ring is screwed on the discharge pipe bottom, and a bottom filter membrane is installed on the inner side of the mounting ring.

[0014] Compared with the related art, the precious metal refining recovery equipment for circuit board has the following beneficial effects:

[0015] In the precious metal refining recovery equipment for circuit board, the standard buoyancy block is immersed in the communication groove in the buoyancy adjusting mechanism, so that upward buoyancy is generated, the buoyancy is transmitted to the pressure sensor through the spring, the pressure sensor can sense the buoyancy transmitted on the standard buoyancy block, the subsequent controller can start the flow control valve to lower the sodium chloride in the sodium chloride storage cone cylinder into the precious metal recovery cylinder according to the buoyancy value, the water buoyancy increases with the addition of sodium chloride, the flow valve is disconnected when the buoyancy sensed by the pressure sensor reaches the buoyancy control value, and thus the water buoyancy is accurately adjusted, the intermediate value between the resin and metal density can be approached by increasing the water buoyancy, the resin powder and metal powder in the water are more obviously layered, the resin content in the separated metal powder is low, the separation purity of the metal powder is improved, the subsequent processing and purification work is facilitated, and the practicability of the precious metal refining recovery equipment for circuit board is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model provides a kind of precious metal refining recovery equipment for circuit board Figure 1 .

[0017] Figure 2 The utility model provides a kind of precious metal refining recovery equipment for circuit board Figure 2 .

[0018] Figure 3The utility model provides a kind of three-dimensional structure schematic diagram of refining precious metal recovery equipment for circuit board Figure 3 ;

[0019] Figure 4 It is the three-dimensional structure schematic diagram of buoyancy detection component;

[0020] Figure 5 It is the three-dimensional sectional structure schematic diagram of buoyancy detection component.

[0021] In the drawing: 1, precious metal separation cylinder;2, support leg;3, driving motor;4, rotating shaft;5, stirring blade;6, controller;7, buoyancy adjusting mechanism;71, installation arc plate;72, communication groove;73, lateral filter membrane;74, sealing ring;75, mounting cylinder;76, sealing screw cap;77, sealing gasket;78, pressure sensor;79, telescopic cylinder;710, spring;711, standard buoyancy block;8, mounting seat;9, sodium chloride storage cone cylinder;10, blanking pipe;11, flow control valve;12, discharge pipe;13, bottom filter membrane;14, electromagnetic valve. DETAILED DESCRIPTION

[0022] The utility model is further described below in connection with the drawings and embodiments.

[0023] Referring Figures 1-5 , a kind of refining precious metal recovery equipment for circuit board: including the precious metal separation cylinder 1 for circuit board metal recovery, precious metal separation cylinder 1 bottom fixed installation has support leg 2, precious metal separation cylinder 1 side wall is equipped with buoyancy adjusting mechanism 7;Buoyancy adjusting mechanism 7 includes communication groove 72, lateral filter membrane 73 is installed in the inboard end of communication groove 72, mounting cylinder 75 is fixedly installed on the upper side of communication groove 72, pressure sensor 78 is installed in the inboard of mounting cylinder 75, pressure sensor 78 bottom fixed installation has telescopic cylinder 79, telescopic cylinder 79 lower side end fixed installation has standard buoyancy block 711, telescopic cylinder 79 outside is equipped with spring 710, communication groove 72 upper side is provided with sodium chloride storage cone cylinder 9, sodium chloride storage cone cylinder 9 bottom fixed installation has blanking pipe 10, blanking pipe 10 is equipped with flow control valve 11, precious metal separation cylinder 1 outer wall is fixedly installed with controller 6.

[0024] By the above-mentioned mode of setting, support leg 2 provides the support effect to whole precious metal separation cylinder 1, standard buoyancy block 711 is immersed in communication groove 72, and upward buoyancy is generated, and buoyancy is transmitted to pressure sensor 78 by spring 710, and then pressure sensor 78 can sense the buoyancy transmitted on standard buoyancy block, and the buoyancy signal is transmitted to controller 6, and in addition, lateral filter membrane 73 prevents metal powder or resin powder from entering into communication groove 72, so that each component in the inboard of communication groove 72 is in the meeting stable working state.

[0025] In the mode, the noble metal separation cylinder 1 upper end side fixed installation has the mounting seat 8, the sodium chloride storage cone 9 fixed installation is established in the mounting seat 8 upper side.

[0026] In the mode, the communication groove 72 passes to the noble metal separation cylinder 1 inside and the communication groove 72 and the noble metal separation cylinder 1 junction are provided with the sealing ring 74.

[0027] Through the above-mentioned mode of setting, the sealing ring 74 is set, the communication groove 72 and the noble metal separation cylinder 1 junction have the performance of sealing water leakage.

[0028] In the mode, the communication groove 72 outside fixed installation has the installation arc plate 71, and the installation arc plate 71 is screwed on the outer wall of the noble metal separation cylinder 1.

[0029] Through the above-mentioned mode of setting, it is convenient for subsequent disassembly and maintenance.

[0030] In the mode, the sealing screw cap 76 is screwed on the upper side of the installation cylinder 75, the sealing gasket 77 is installed in the inside of the installation cylinder 75, the sealing gasket 77 is located on the upper side of the pressure sensor 78, and the anticorrosion film is arranged on the outer side of the pressure sensor 78.

[0031] Through the above-mentioned mode of setting, the sealing gasket 77 is set, the water flow in the communication groove 72 will not flow out from the upper side of the installation cylinder 75, the whole communication groove 72 is filled with water flowing from the inside of the noble metal separation cylinder 1, and the whole standard buoyancy block 711 is in a completely submerged state.

[0032] In the mode, the telescopic cylinder 79 and the spring 710 are both aluminum alloy materials.

[0033] Through the above-mentioned mode of setting, the telescopic cylinder 79 and the spring 710 both have corrosion resistance.

[0034] In the mode, the noble metal separation cylinder 1 bottom is provided with a discharge pipe 12, the discharge pipe 12 is fixedly provided with an electromagnetic valve 14, the discharge pipe 12 bottom is screwed with a mounting ring, and the bottom filter membrane 13 is installed in the inside of the mounting ring.

[0035] Through the above-mentioned mode of setting, the bottom filter membrane 13 can make the sodium chloride solution pass smoothly, and the metal powder with large particle size cannot pass, so as to separate and discharge the remaining sodium chloride solution from the metal powder.

[0036] In the mode, the noble metal separation cylinder 1 side wall is fixedly provided with a plurality of driving motors 3, the driving motor 3 output end is fixedly provided with a rotating shaft 4, the rotating shaft 4 rotates through the noble metal separation cylinder 1 inside, and a plurality of stirring blades 5 are circumferentially and equidistantly installed on the inner end of the rotating shaft 4.

[0037] Through the above manner, the driving motor 3 is started to drive the stirring blade 5 to rotate in the precious metal separation cylinder 1, so that the inside solution is uniformly mixed, and the separation of the resin and the metal is accelerated.

[0038] The working principle of the precious metal refining and recycling equipment for circuit board provided by the utility model is as follows:

[0039] In use, the circuit board is pre-crushed to generate metal resin mixed powder, the buoyancy control value is pre-input in the controller 6 according to the density value of the circuit board resin and the metal powder, the buoyancy control value tends to the intermediate value between the density of the circuit board resin and the metal powder, the subsequent controller 6 can start the flow control valve 11 to lower the sodium chloride in the sodium chloride storage cone cylinder 9 into the precious metal separation cylinder 1 according to the buoyancy value, the driving motor 3 is started to drive the stirring blade 5 to stir in the precious metal separation cylinder 1, the uniform generation of the sodium chloride solution is accelerated, with the addition of the sodium chloride, the buoyancy of water increases, when the buoyancy sensed by the pressure sensor 78 reaches the buoyancy control value, the flow valve is disconnected, thereby realizing the accurate adjustment of the water buoyancy, the metal resin mixed powder is subsequently added into the precious metal separation cylinder 1, under the action of the buoyancy, the metal sinks to the bottom, and the resin powder with smaller density floats to the upper layer of the sodium chloride solution, the stirring is stopped, after a period of standing, the upper resin powder is salvaged, the electromagnetic valve 14 is subsequently opened, the sodium chloride solution is discharged from the precious metal separation cylinder 1, and the metal powder is located at the bottom of the inside of the precious metal separation cylinder 1, after the sodium chloride solution is discharged, the mounting ring at the bottom of the discharge pipe 12 is unscrewed, the metal powder can be discharged from the discharge pipe 12.

[0040] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A device for refining and recycling precious metals for circuit boards, characterized in that, The application relates to a precious metal separation cylinder (1) for circuit board metal recovery, wherein a supporting leg (2) is fixedly arranged at the bottom of the precious metal separation cylinder (1), and a buoyancy adjusting mechanism (7) is arranged on the side wall of the precious metal separation cylinder (1). The buoyancy adjusting mechanism (7) comprises a communication groove (72), a lateral filter membrane (73) is arranged at the inner side of the communication groove (72), an installation cylinder (75) is fixedly arranged at the upper side of the communication groove (72), a pressure sensor (78) is arranged at the inner side of the installation cylinder (75), a telescopic cylinder (79) is fixedly arranged at the bottom of the pressure sensor (78), a standard buoyancy block (711) is fixedly arranged at the lower side end of the telescopic cylinder (79), a spring (710) is arranged on the outer side of the telescopic cylinder (79), a sodium chloride storage conical cylinder (9) is arranged at the upper side of the communication groove (72), a discharging pipe (10) is fixedly arranged at the bottom of the sodium chloride storage conical cylinder (9), a flow control valve (11) is arranged on the discharging pipe (10), and a controller (6) is fixedly arranged on the outer wall of the precious metal separation cylinder (1).

2. The precious metal refining apparatus for a circuit board according to claim 1, characterized by, The upper end side of the precious metal separation cylinder (1) is fixedly provided with a mounting seat (8), and the sodium chloride storage conical cylinder (9) is fixedly arranged at the upper side of the mounting seat (8).

3. The precious metal refining apparatus for a circuit board according to claim 1, characterized by, The communication groove (72) penetrates into the precious metal separation cylinder (1), and a sealing ring (74) is arranged at the joint of the communication groove (72) and the precious metal separation cylinder (1).

4. The precious metal refining apparatus for a circuit board according to claim 1, characterized by An installation arc plate (71) is fixedly arranged at the outer side of the communication groove (72), and the installation arc plate (71) is screwed on the outer wall of the precious metal separation cylinder (1).

5. The precious metal refining apparatus for a circuit board according to claim 1, wherein A sealing screw cap (76) is screwed on the upper side of the installation cylinder (75), a sealing gasket (77) is arranged at the inner side of the installation cylinder (75), the sealing gasket (77) is arranged at the upper side of the pressure sensor (78), and an anti-corrosion film is arranged at the outer side of the pressure sensor (78).

6. The precious metal refining apparatus for reclaiming from a circuit board according to claim 1, wherein A driving motor (3) is fixedly arranged on the side wall of the precious metal separation cylinder (1), a rotating shaft (4) is fixedly arranged on the output end of the driving motor (3), the rotating shaft (4) penetrates into the precious metal separation cylinder (1), and a plurality of stirring blades (5) are circumferentially and equidistantly arranged on the inner end of the rotating shaft (4).

7. The precious metal refining apparatus for reclaiming from a circuit board according to claim 1, wherein The telescopic cylinder (79) and the spring (710) are made of aluminum alloy.

8. The precious metal refining apparatus for reclaiming from a circuit board according to claim 1, wherein An exhaust pipe (12) is arranged at the bottom of the precious metal separation cylinder (1), an electromagnetic valve (14) is fixedly arranged on the exhaust pipe (12), a mounting ring is screwed at the bottom of the exhaust pipe (12), and a bottom filter membrane (13) is arranged at the inner side of the mounting ring.

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