WO2014196773A1

WO2014196773A1 - Metal liberation device of printed circuit board

Info

Publication number: WO2014196773A1
Application number: PCT/KR2014/004898
Authority: WO
Inventors: 박재구; 박승수; 한요셉; 김성민; 진호; 정인상; 문향; 권석제; 한성수; 서아람
Original assignee: 한양대학교 산학협력단
Priority date: 2013-06-07
Filing date: 2014-06-02
Publication date: 2014-12-11
Also published as: CN105307775B; KR101466887B1; CN105307775A

Abstract

A metal liberation device of a printed circuit board according to the present invention comprises: a body casing of which upper and lower ends are opened so as to introduce or discharge a PCB particle to be separated, the body casing being formed to have a hollow conical shape with an increasing diameter from a lower portion to an upper portion; a rotation body arranged within the body casing, of which upper and lower ends are opened and which is formed to have a hollow conical shape with an increasing diameter from a lower portion to an upper portion, the rotation body being rotatably connected to a rotary shaft disposed in a shaft center along the longitudinal direction of the body casing; a lower casing into which the PCB particle is injected, the lower casing being connected to communicate with the lower end of the body casing; and at least one metal layer separation unit formed in the longitudinal direction along the inner circumferential surface of the body casing. The metal liberation device of a printed circuit board according to the present invention can maximize the liberation of the metal surface layer of PCB by shear stress from the PCB particle circling upwardly by injecting compressed air, in which a vortex is formed, into the body casing, thereby increasing the metal recovery yield of the entire PCB.

Description

Metal Separation Device for Printed Circuit Board

The present invention relates to an apparatus for separating a single metal of a printed circuit board, and more particularly, to an insulating layer made of a resin or glass fiber made of metal such as copper, gold, silver, etc., processed on a substrate surface by comminution of the printed circuit board. The present invention relates to a metal strip separating device for a printed circuit board that can be efficiently separated from a substrate.

In general, a printed circuit board (hereinafter referred to as "PCB") is a thin insulating layer base material of which glass wool is reinforced with epoxy resin or the like, and a thin copper layer is processed into a wiring pattern to process electronic components such as ICs. Refers to a substrate that can be operated. The PCB is an electronic component that mounts various components and connects the components, and is widely used in all electronic devices such as TV, video, computer, and audio.

Recently, as the life cycle of electronic devices is shortened and new technologies are developed differently, older electronic devices are easily left and discarded. Therefore, environmental problems are getting serious due to PCBs embedded in these discarded electronic devices, particularly metal components such as copper and lead.

In addition, metal components such as copper, gold, and silver constituting the circuit wiring of the PCB are urgently recycled due to the current time when world raw material prices are soaring and resource problems are raised.

Various methods have been considered as a method of recovering metal components from the PCB. Drying method that melts PCB at high temperature and recovers expensive metals such as gold (Au), copper (Cu) from impurities and recovers them, and metal rich particles obtained through physical sorting process after crushing or crushing PCB. There is a wet smelting method which is eluted with a suitable solvent and recovered. Of these methods, a PCB grinding process is indispensable for recovering metal from the PCB by wet smelting.

PCB grinding products obtained through the grinding process may be classified into three types: metal rich particles mainly composed of metal components, mixed particles of metal and plastic, or rich particles composed of plastic. In this case, mainly the metal rich particles are referred to as single particles (liberated particles), mainly for the metal rich particles, the screening, smelting process may be performed to increase the metal recovery rate. Therefore, the metal is recovered from the metal-rich particles separated by a single substance through sorting and smelting, which are post-processing processes.

However, as mentioned above, since the PCB is processed with various metals on the surface of the thin plate made of resin, the grinding device for crushing the PCB by compression and impact has a problem in that the degree of separation of metal components is not high.

In addition, in the case of PCB, the density is low and it is not only light but also has a layered structure. Therefore, it is difficult to grind with a general mill such as a ball mill, which has a compressive force and an impact force. There is a problem that the recovery efficiency is low.

The present invention has been proposed to solve the above problems, by inserting the compressed air in which the vortex is formed into the main body casing, while the PCB particles are swiveled upward, the separation of the metal surface layer of the PCB by the shearing force is maximized and accordingly Provided is a metal single separation device for a printed circuit board in which the single separation efficiency of metal on the PCB is increased.

In order to achieve the object as described above, the apparatus for separating a metal body of a printed circuit board according to the present invention has a hollow cone of which a top and a bottom are opened and a diameter increases from bottom to top so that PCB particles to be separated are introduced or discharged. A main body casing formed into a shape; It is formed in a hollow conical shape of the upper and lower openings and the diameter increases from the bottom to the top is disposed inside the main body casing, rotatable to the rotating shaft disposed in the shaft center along the vertical direction of the main body casing A rotating body connected; A lower casing connected in communication with a lower end of the main body casing and into which the PCB particles are injected; And at least one metal layer separator formed in an up and down direction along an inner circumferential surface of the main body casing.

The metal layer separator may be a plurality of cutter blades disposed radially spaced apart from each other about an axis of the rotating body.

Further comprising a raw material supply for supplying the PCB particles to be recovered, the inlet port is formed on the side of the lower casing connected to the raw material supply, the first discharge port is formed through the bottom of the lower casing Can be.

The inlet port may guide the PCB particles to flow in a tangential direction of the circumference of the lower casing.

The upper and lower ends of the main body casing may be formed with horizontal support plates respectively connected to the pivot shaft, and the horizontal support plates may be provided with a plurality of through holes arranged radially around the pivot shaft.

The body casing and the rotating body may be formed to increase in diameter from the bottom to the top in the longitudinal direction.

The upper casing is connected in communication with the upper end of the main body casing, and further comprises an upper casing having a second discharge port is formed in the center, the second discharge port may be formed to penetrate the upper casing and protrude into the rotating body.

The second discharge port may be disposed above the main body casing, the rotating body, the raw material supply unit, and the lower casing.

The PCB particles may move upward in the separation space to flow into the upper casing side to pivot inside and discharge through the through hole to the second discharge port.

The raw material supply unit, a hopper to which the PCB particles are injected; A supply pipe interconnecting the hopper and the inlet port; And a main compressed air input nozzle connected to the supply pipe to introduce the PCB particles into the lower casing side.

It may include a plurality of auxiliary compressed air input nozzle connected in the tangential direction of the circumference of the main body casing to assist the rise of the PCB particles.

The rotating body may be a plurality of rotating plates arranged along the longitudinal direction of the pivot shaft.

The metal layer separating part may include a fixed blade provided along a circumference on an inner circumferential surface of the main body casing corresponding to the cutter blade, and the metal of the PCB particles may be separated by the interaction of the cutter blade and the fixed blade. have.

The cutter blade may include a vertical cutter blade bent upward from the end of the cutter blade, and a fixed blade support jaw for supporting the fixed blade may be provided on the inner circumferential surface of the main body casing.

The apparatus may further include a separation recovery unit configured to selectively collect and recover the PCB particles passing through the second discharge port.

The separation recovery unit, the first cyclone is connected to the discharge port to the second discharge port to recover the metal particles of the PCB particles; A second cyclone connected to the first cyclone to recover resin particles in the PCB particles; And a recoverer connected to the second cyclone to recover the dust and the remainder of the PCB particles.

According to the present invention, a single metal separation device of a printed circuit board is introduced into the main body casing by the compressed air in which the vortex is formed, while the PCB particles are swiveled upward to maximize the single separation of the metal surface layer of the PCB by the shearing force, and thus the entire PCB. The recovery efficiency of the metal can be increased.

The metal single separation device of the printed circuit board according to the present invention can be accompanied with a dust collecting function in the single separation device can simplify the entire installation.

The metal single separation device of the printed circuit board according to the present invention can prevent the PCB particles from being caught between the metal layer separators, thereby reducing the tact time of the entire metal recovery process and maintaining and maintaining the metal single separation device of the printed circuit board. Maintenance time can be managed efficiently.

1 is a partial cross-sectional view of an apparatus for separating metal from a printed circuit board according to an exemplary embodiment of the present invention.

2 is a schematic plan view of a body casing according to an embodiment of the invention.

3 is a cross-sectional view of the A-A line of FIG.

4 is a view showing a movement path of the PCB particles in the metal single separation device of the printed circuit board according to an embodiment of the present invention.

5 is a partial cross-sectional view of an apparatus for separating metal from a printed circuit board according to another exemplary embodiment of the present invention.

6 is a cross-sectional view of the B-B line of FIG.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a metal strip separating apparatus of a printed circuit board according to the present invention. Hereinafter, a case of separating a metal or a metal layer from a printed circuit board using a metal single separation device of a printed circuit board according to the present invention will be described for convenience of description. However, the single metal separation device of a printed circuit board according to the present invention will be described. Of course, this does not only apply to printed circuit boards.

1 is a partial cross-sectional view of a metal single separation device of a printed circuit board according to an embodiment of the present invention, Figure 2 is a schematic plan view of a main body casing according to an embodiment of the present invention, Figure 3 is a line AA of Figure 1 It is a cross section.

The metal single separation device 10 of the printed circuit board according to the present invention is disposed inside the main body casing 100 and the main body casing 100 into which the PCB particles to be separated are introduced, and is located at the center of the main body casing 100. Rotating body 110 is rotatably connected to the rotating shaft (not shown) disposed, and spaced apart space 102 between the body casing 100 and the rotating body 110 is arranged along the outer circumferential surface of the rotating body 110 The metal layer separation unit 120 for separating the metal or metal of the PCB particles introduced into the raw material, the raw material supply unit 130 for supplying the PCB particles to be separated into a single body, and is connected to the lower portion of the main body casing 100, the raw material supply unit It may include a lower casing 140 is provided with an inlet port 141 is connected to (130).

The main body casing 100 is provided in a conical shape, the inside of which is inverted into a hollow type, as shown in FIG. 1. That is, the main body casing 100 is provided in a tapered shape so as to increase in diameter from the bottom to the top in the longitudinal direction. The upper casing 150 and the lower casing 140 are coupled to the upper and lower portions of the main body casing 100, respectively, and the inside of the upper casing 150, the main casing 100, and the lower casing 140 is one closed space. To form. Accordingly, the PCB particles introduced from the raw material supply unit 130 to the lower casing 140 are moved upwardly from the lower casing 140 through the space 102, and in this process, the metal by the metal layer separation unit 120. To a single separation process of the metal layer.

The main body casing 100 is provided with a plurality of auxiliary compressed air injection nozzles 101 along the longitudinal direction. The auxiliary compressed air injection nozzle 101 is connected in the tangential direction of the circumference of the main body casing 100 to provide air pressure in a counterclockwise direction when the PCB particles are moved along the separation space 102 to form the vortex in the PCB particles. Assist in the role of ascension.

The rotating body 110 is formed to correspond to the tapered shape of the body casing 100. Therefore, the rotating body 110 is also provided to increase in diameter from the bottom to the top along the longitudinal direction. And, the diameter of the rotating body 110 is formed relatively less than the diameter of the body casing (100). Accordingly, a space 102 may be provided between the main body casing 100 and the rotating body 110.

On the upper and lower surfaces of the rotating body 110, a second discharge port 151 and a horizontal support plate 113 connected to the pivot shaft disposed at the shaft center of the main body casing 100 are formed. The second discharge port 151 coupled to the upper casing 150 is disposed to penetrate the upper surface of the rotating body 110, and supports the upper portion of the rotating body 110. To this end, a friction reducing member 115 such as a washer or a bearing may be used between the rotating body 110 and the second discharge port 151. Then, the horizontal support plate 113 of the bottom surface is connected to and supported by the rotation shaft. On the other hand, the plate surface of the horizontal support plate 113 is formed with a plurality of through holes 114 radially spaced apart from each other about a rotation shaft. The role of the through hole 114 will be described later in the description of the operation of the metal single separation device of the printed circuit board.

Although not shown in the drawings, the rotation shaft is disposed on the shaft center of the main body casing 100, and is mounted on the driving shaft (not shown) of the drive motor (not shown) installed outside the main body casing 100. In addition, the rotating shaft and the rotating body 110 connected thereto rotate in one direction by the driving power output from the driving motor, and the metal layer separation unit 120 provided on the rotating body 110 rotates and the metal to metal of the PCB particles is rotated. Can be separated.

The metal layer separator 120 in the present embodiment is provided with a plurality of cutter blades 121 that are radially spaced apart from each other about an axis of the rotating body 110. The plurality of cutter blades 121 may be provided in the lower, center, and upper regions, respectively, along the longitudinal direction of the rotating body 110.

Referring to FIG. 1, the raw material supply unit 130 may include a hopper 131 into which PCB particles are introduced, a supply pipe 132 interconnecting the hopper 131 and an inlet port 141, and a supply pipe 132. It may be connected to include a main compressed air input nozzle 133 to introduce the PCB particles to the lower casing 140 side.

The hopper 131 is supplied with PCB particles. The PCB particles may be introduced into the hopper 131 after undergoing a pretreatment process of dividing the printed circuit board to increase the separation efficiency of the metal or metal. In the present embodiment, the size of the PCB particles introduced into the hopper 131 may be formed to be approximately 3 to 4 mm.

Pneumatic pressure is provided through the main compressed air injection nozzle 133. Accordingly, the PCB particles introduced from the hopper 131 to the lower casing 140 are forcibly pushed upwards, and vortices can be formed in the counterclockwise direction.

The lower casing 140 is connected to the lower portion of the main body casing 100 to form a closed closed space consisting of the main body casing 100 and the lower casing 140. An inlet port 141 to which the raw material supplier 130 is connected may be provided at a side of the lower casing 140.

The inlet port 141 serves to guide the PCB particles to flow in a tangential direction of the circumference of the lower casing 140. To this end, the inlet port 141 is provided in the tangential direction spaced apart by a predetermined interval based on the axis of the lower casing 140. When the PCB particles are introduced into the lower casing 140 through the inflow port 141, vortices are formed while rotating counterclockwise along the inner circumferential surface of the lower casing 140 and may be moved upward. In addition, a first discharge port 142 penetrating downward may be provided at a bottom of the lower casing 140.

The upper casing 150 is connected to the upper portion of the body casing 100 to form a closed space consisting of the body casing 100 and the upper casing 150. PCB particles moved to the upper side along the separation space 102 between the main body casing 100 and the rotating body 110 serves to pivot inside the upper casing 150 to the inner center. Meanwhile, a second discharge port 151 penetrates toward the main body casing 100 at the center of the upper casing 150. The second discharge port 151 may be provided to protrude into the rotating body 110 through the horizontal support plate 113 of the rotating body 110. The second discharge port 151 pivots the PCB particles introduced into the upper casing 150 side through the separation space 102 and passes through the through hole 114 to be discharged to the second discharge port 151. .

Through such a configuration, it is possible to perform a simple separation process while moving the PCB particles upward by inputting compressed air in which the vortex is formed. That is, the self-weight acts on the PCB particles to prevent them from moving downward, forcibly pushes them upwards to contact the metal layer separation unit 120 and increases the time for crushing to separate the metal or metal layer from the PCB particles to increase the degree of separation. Can be increased.

In addition, the configuration of the upper casing 150 and the second discharge port 151 in the separation unit can perform a dust collecting function has the advantage that the entire installation is simplified.

Hereinafter, the rotational operation of the metal single separator of the printed circuit board according to the present embodiment will be described in detail with reference to FIG. 4.

As shown in FIG. 4, PCB particles are injected into the hopper 131 and move to the lower casing 140 along the supply pipe 132. At this time, the compressed air is introduced from the main compressed air input nozzle 133 connected on the supply pipe 132, the PCB particles are rotated in the counterclockwise direction while being introduced into the lower casing 140, the lower casing by centrifugal force It is moved along the inner circumferential surface of 140 and may be moved upward.

The PCB particles enter the separation space 102 between the main body casing 100 and the rotating body 110 and meet the plurality of metal layer separators 120 disposed on the outer circumferential surface of the rotating body 110. In this process, the PCB particles may be finely crushed by the cutter blade 121.

As PCB particles move upwards, the separation efficiency increases. In other words, the self-weight acts on the PCB particles to prevent them from moving downward, forcibly pushes upwards to contact the metal layer separation unit 120 and increases the time to be crushed, thereby sufficiently separating the metal or metal from the PCB particles to separate them. The efficiency can be increased.

In addition, since the metal layer separator 120 is provided on the lower, middle, and upper portions of the rotating body 110, the grinding process may be repeatedly performed while the PCB particles proceed upward. In addition, since the space 102 has a larger diameter in the upward direction along the longitudinal direction of the rotating body 110, the centrifugal force of the PCB particles rotating the space 102 is also increased upwards, thus the PCB Particles and the metal layer separation unit 120 also has the advantage that the efficiency of the crushing is increased.

PCB particles passing through the metal layer separation unit 120 by riding on the outer circumferential surface of the rotating body 110 are then pivoted through the inner space of the upper casing 150 and passed through the through hole 114 of the horizontal support plate 113. It may flow into the interior of the rotating body (110). In this process, particles having a heavy weight such as metal components may be moved downward by their own weight and discharged to the first discharge port 142.

In addition, in the case of particles having a light weight such as resin particles among PCB particles, the particles may be swiveled in the rotating body 110 for a predetermined time and then introduced into the second discharge port 151 and then discharged to the outside.

As described above, the second discharge port 151 of the upper casing 150 may perform a function of the cyclone type dust collecting apparatus. That is, the second discharge port 151 is provided to protrude by a predetermined length inside the rotating body, so that the PCB particles separated by the metal layer separating part 120 of the inner space of the upper casing 150 and the rotating body 110 It is forced to turn into the interior space, which in turn rotates in the interior space, allowing the PCB particles to sort naturally by weight. As a result, the metal single separation device 10 of the printed circuit board may perform a function of a dust collecting processor such as a cyclone together with a role of separating metal from metal, and a separate cyclone or dust collecting processing device may be omitted. .

Finally, the separation or recovery efficiency of the PCB particles can be increased, and the device can be simplified, such as a separate metal cyclone separation apparatus of the printed circuit board, and a separate cyclone or dust collecting apparatus can be omitted.

Of course, the metal single separation device 10 of the printed circuit board 10 or the dust collection processing device may be added to the second discharge port 151 by further increasing the metal single separation efficiency or maximizing the dust collection efficiency. There will be.

FIG. 5 is a partial cross-sectional view of a metal single separation device of a printed circuit board according to another exemplary embodiment. FIG. 6 is a cross-sectional view of the B-B line of FIG. 5.

The metal single separation device 20 of the printed circuit board according to another embodiment of the present invention is similar in structure to most of the metal single separation device 10 of the printed circuit board according to the first embodiment, but has a rotating body 210. And the structure of the metal layer separation unit 220 is different, and the configuration of the first cyclone 261, the second cyclone 262 and the recovery unit of the separation recovery unit 260 may be additionally provided. In the following, only a configuration different from the configuration of the above-described first embodiment will be described in order to avoid duplication of description.

As shown in FIG. 5, the rotating body 210 may be provided with a plurality of rotating plates 210 connected to the rotating shaft 211. While the rotating body 110 of the simple separation apparatus 10 according to the first embodiment of the present invention is a conical member having a space formed therein, the rotating body of the simple separation apparatus 20 according to another embodiment of the present invention. 210 is a plurality of rotating plates connected to the rotation shaft 211 and rotate inside the main body casing 100. Hereinafter, the rotating body of the simple separation device 20 according to another embodiment of the present invention is called a rotating plate (210).

That is, while the rotary body 110 of the simple separation device 10 according to the first embodiment of the present invention is a conical member having a space formed therein, the simple separation of the simple separation device 20 according to another embodiment of the present invention The rotating body 210 may be formed of a plurality of rotating plates connected to the rotation shaft 211 and rotating inside the main body casing 100. Hereinafter, in the simple separation device 20 according to another embodiment of the present invention, the rotating body is referred to as the rotating plate 210.

Horizontal support plate portions 113 are formed at upper and lower ends of the main body casing 100 and connected to the rotating shaft 211 disposed at the axial center of the main body casing 100.

Specifically, a horizontal support plate 113 is formed between the upper casing 150 and the main casing 100 coupled to the upper end of the main casing 100, and the lower casing coupled to the lower end of the main casing 100 ( A horizontal support plate 113 is also formed between the 140 and the main body casing 100. On the plate surface of the horizontal support plate 113 is formed a plurality of through holes 114 radially spaced apart at predetermined intervals about the pivot shaft 211.

The PCB particles are introduced into the internal space of the main body casing 100 through the plurality of through holes 114 of the horizontal support plate 113 formed between the lower casing 140 and the main body casing 100. PCB particles introduced into the inner space of the main body casing 100 pass through the metal layer separation unit 220 while riding on the inner circumferential surface of the main body casing 100. PCB particles are smaller in size while the particles sequentially pass through the plurality of metal layer separators 220 formed inside the body casing 100.

PCB particles having a heavy weight such as metal components among the PCB particles are moved below the main body casing 100 by their own weight to pass through the space between the vertical cutter blade 222 and the fixed blade 223 of the metal layer separation unit 220. . The heavy PCB particles that pass through the metal layer separator 220 are discharged through the through holes 114 of the horizontal support plate 113 and are discharged to the outside through the first discharge port 142 of the lower casing 140. .

Meanwhile, PCB particles having a light weight such as a resin component among the PCB particles are moved upwardly of the main body casing 100 to pass through the space between the vertical cutter blade 222 and the fixed blade 223 of the metal layer separator 220. The light weight PCB particles passing through the metal layer separator 220 are discharged through the through holes 114 of the horizontal support plate 113 to be described below through the second discharge port 251 of the upper casing 150. Is recovered to the separated recovery unit 260.

As shown in FIG. 6, the metal layer separation unit 220 is formed on a cutter blade 221 provided on the outer circumferential surface of the rotating plate 210 and a predetermined region of the inner circumferential surface of the main body casing 100, but the cutter blade 221 is formed. It may include a fixed blade 223 disposed in a position opposite to.

The cutter blade 221 may be provided along a circumference of the outer circumferential surface of the rotating plate, and a vertical cutter blade 222 bent upward may be provided at an end of the cutter blade 221. The vertical cutter blade may be added to increase the contact area between the cutter blade 221 and the PCB particles, thereby increasing the separation efficiency of the PCB particles.

The fixed blade 223 may be provided along the circumference of the inner circumferential surface of the main body casing 100 to separate the metal or metal of the PCB particles by the interaction of the cutter blade 221 and the fixed blade 223. In particular, the fixed blade 223 may be provided to be sequentially higher with reference to Figure 6, mainly. To this end, a fixed blade support jaw 224 supporting the fixed blade 223 is further provided on the inner circumferential surface of the main body casing 100, and the height of the fixed blade support jaw 224 is provided to increase in height in the circumferential direction. Can be.

Through the metal layer separator 220 having such a configuration, a distance between the cutter blade 221 and the fixed blade 223 may be differently provided along the circumferential direction. As the rotation body 110 rotates in the counterclockwise direction, the gap between the cutter blade 221 and the fixed blade 223 gradually decreases, thereby preventing the PCB particles from being caught between the metal layer separators 220.

When the PCB particles are prevented from being pinched between the metal layer separators 220, it reduces the tact time of the entire metal or metal recovery process and efficiently manages the maintenance and repair time of the metal single separator of the printed circuit board. There is an advantage to this.

The apparatus may further include a separation recovery unit 260 for selectively recovering PCB particles passing through the second discharge port 251.

Separation recovery unit 260 is connected to the first cyclone 261 and the first cyclone 261, which is connected to the second discharge port 251 to the discharge pipe 252 to recover the metal particles of the PCB particles. And a second cyclone 262 that recovers the resin particles of the PCB particles, and a recoverer that is connected to the second cyclone 262 to recover the remaining dust and PCB particles.

The first cyclone 261 and the second cyclone 262 refer to a device capable of separating and selecting PCB particles according to the particle size by centrifugal force. The first cyclone 261 may collect metal particles, and the second cyclone 262 may selectively collect and collect the resin particles from the PCB particles. The suspended matter and the remaining recovered particles can be recovered and recovered through a recoverer.

As described above, the metal single separation device 20 of the printed circuit board according to another exemplary embodiment of the present invention may have a cutter by varying the height of the fixed blade support jaw 224 supporting the fixed blade 223 along the circumferential direction. The gap between the blade 221 and the fixed blade 223 is changed, thereby preventing the PCB particles from being pinched between the metal layer separator 220.

When the PCB particles are prevented from being pinched between the metal layer separators 220, it reduces the tact time of the entire metal or metal recovery process and efficiently manages the maintenance and maintenance of the metal single separation device 20 of the printed circuit board. There is an advantage to this.

As described above, in one embodiment of the present invention has been described by the specific embodiments, such as specific components and limited embodiments and drawings, but this is provided to help a more general understanding of the present invention, the present invention in the above embodiment The present invention is not limited thereto, and various modifications and variations can be made by those skilled in the art to which the present invention pertains. Therefore, the spirit of the present invention should not be limited to the described embodiments, and all of the equivalents and equivalents of the claims, as well as the following claims, will fall within the scope of the present invention. .

The present invention can be applied to the printed circuit board recycling field, a metal layer recovery device of a printed circuit board (PCB), a metal layer separation device of a printed circuit board.

Claims

A main body casing formed in the shape of a hollow conical shape in which the upper and lower ends are opened and the diameter increases from the lower part to the upper part so that the PCB particles to be separated are introduced or discharged;

It is formed in a hollow conical shape of the upper and lower openings and the diameter increases from the bottom to the top is disposed inside the main body casing, rotatable to the rotating shaft disposed in the shaft center along the vertical direction of the main body casing A rotating body connected;

A lower casing connected in communication with a lower end of the main body casing and into which the PCB particles are injected; And

At least one metal layer separator formed along the inner circumferential surface of the main body casing in up and down directions;

Separation device for a metal strip of a printed circuit board comprising a.
The method of claim 1,

The metal layer separation unit of claim 1, wherein the plurality of cutter blades are disposed radially spaced apart from each other about the axis of the rotating body.
The method of claim 1,

Further comprising a raw material supply for supplying the PCB particles to be recovered,

An inlet port connected to the raw material supply part is formed on a side surface of the lower casing, and a first discharge port penetrating downward is formed on a bottom surface of the lower casing.
The method of claim 3,

The inlet port guides the PCB particles to guide the metal particles to flow in the tangential direction of the circumference of the lower casing.
The method of claim 1,

Horizontal support plate portions connected to the pivot shaft are respectively formed at upper and lower ends of the main body casing,

And the horizontal support plate portion is provided with a plurality of through-holes arranged radially about the pivot shaft.
The method of claim 1,

And the main body casing and the rotatable body are formed to increase in diameter from the lower side to the upper side in the longitudinal direction.
The method of claim 1,

It is further connected in communication with the upper end of the main casing, and further comprises an upper casing is formed in the second discharge port in the center,

And the second discharge port penetrates through the upper casing and protrudes into the rotating body.
The method of claim 7, wherein

And the second discharge port is disposed above the main casing, the rotating body, the raw material supply part, and the lower casing.
The method of claim 1,

The PCB particle is moved to the upper space in the separation space is introduced into the upper casing side is rotated in the inside and discharged to the second discharge port through the through hole characterized in that the metal single separation device of the printed circuit board.
The method of claim 3,

The raw material supply unit,

A hopper into which the PCB particles are injected;

A supply pipe interconnecting the hopper and the inlet port; And

And a main compressed air inlet nozzle connected to the supply pipe to introduce the PCB particles into the lower casing side.
The method of claim 1,

And a plurality of auxiliary compressed air input nozzles connected in a tangential direction of the circumference of the main body casing to assist the rise of the PCB particles.
The method of claim 1,

And said rotating body is a plurality of rotating plates arranged along the longitudinal direction of said rotating shaft.
The method of claim 2,

The metal layer separator,

It includes a fixed blade provided along the circumference on the inner peripheral surface of the main body casing corresponding to the cutter blade,

The metal single separation device of the printed circuit board, characterized in that for separating the metal of the PCB particles by the interaction of the cutter blade and the fixed blade.
The method of claim 13,

The cutter blade includes a vertical cutter blade bent upward from the end of the cutter blade,

On the inner circumferential surface of the main body casing, the metal single separation device of the printed circuit board, characterized in that the fixed blade support jaw for supporting the fixed blade is provided.
The method of claim 7, wherein

And a separate recovery part configured to selectively collect and recover the PCB particles passing through the second discharge port.
The method of claim 15,

The separation recovery unit,

A first cyclone connected to the second discharge port by a discharge pipe to recover metal particles of the PCB particles;

A second cyclone connected to the first cyclone to recover resin particles in the PCB particles; And

And a recovery device connected to the second cyclone to recover dust and the remainder of the PCB particles.