CN213494303U

CN213494303U - Electrostatic separation equipment and waste circuit board integrated processing system

Info

Publication number: CN213494303U
Application number: CN202021693726.5U
Authority: CN
Inventors: 杨友贵; 李新良; 张华雄; 周继国
Original assignee: HUNAN YONGCHUANG ELECTROMECHANICAL EQUIPMENT CO Ltd
Current assignee: HUNAN YONGCHUANG ELECTROMECHANICAL EQUIPMENT CO Ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-06-22
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses an electrostatic separation equipment, including feed mechanism, refining mechanism, cylinder adsorption device, shedding mechanism, discharge mechanism and be used for making the high-pressure mechanism of refining mechanism exhaust material band charge, refining mechanism locates the feed mechanism below, high-pressure mechanism locates the exit of refining mechanism, cylinder adsorption device with the high-pressure mechanism is adjacent to be set up, cylinder shedding mechanism locates apart from the adjustable cylinder adsorption device side, discharge mechanism locates cylinder adsorption device and cylinder shedding mechanism below. The utility model also provides an old and useless circuit board integrated processing system includes interconnect's crushing equipment, air current sorting classification equipment, vibration winnowing equipment and foretell static sorting equipment in proper order. The utility model provides an integrated processing system of electrostatic separation equipment and old and useless circuit board has advantages such as simple structure, convenient operation, separation effect height, and the metal is selected separately the effect and can be reached more than 95%.

Description

Electrostatic separation equipment and waste circuit board integrated processing system

Technical Field

The utility model belongs to the electronic product recycle field especially relates to a recovery processing device of old and useless circuit board.

Background

At present, the electronic product industry develops rapidly, the updating is fast, almost all electronic products such as household appliances, mobile phones and computers use circuit boards, once the electronic products are scrapped, the circuit boards carried by the electronic products are abandoned, the circuit boards usually contain more valuable metals such as copper, gold and the like, if the circuit boards are not recycled, the valuable metals are wasted, and meanwhile, the environment pollution is caused.

The existing waste circuit board recycling process comprises an incineration method, and the method has the problems of serious air pollution, low metal recovery rate, unreasonable utilization of non-metal components such as plastics in the circuit board and the like. At present, relevant reports of integrated processes such as crushing, sorting and the like are also available for recycling of waste circuit boards, but the integrated processes generally have the problems of low metal recovery rate, low separation degree of metals and non-metals and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide a metal and nonmetal separation efficiency height, high static sorting equipment of resource utilization and old and useless circuit board integrated processing system. In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides an electrostatic separation equipment, includes feed mechanism, refining mechanism, cylinder adsorption device, shedding mechanism, discharge mechanism and is used for making refining mechanism exhaust material take the high-pressure mechanism of electric charge, refining mechanism locates the feed mechanism below, high-pressure mechanism locates the exit of refining mechanism, cylinder adsorption device with high-pressure mechanism is adjacent to be set up, cylinder shedding mechanism locates apart from the adjustable cylinder adsorption device side, discharge mechanism locates cylinder adsorption device and cylinder shedding mechanism below.

Among the above-mentioned electrostatic separation equipment, preferred, feed mechanism includes feeder hopper, refining spiral and is used for driving refining spiral pivoted refining spiral drive source, the refining spiral is located the bottom of feeder hopper. Through the rotation of the refining screw, the material can be conveniently added. The refining spiral driving source can be a conventional driving motor.

In the above electrostatic separation apparatus, preferably, the homogenizing mechanism includes a homogenizing hopper, the homogenizing hopper is hung below the feeding mechanism through a hanger rod, a homogenizing plate is arranged at an outlet of the homogenizing hopper, and a vibrating motor is arranged on a side surface of the homogenizing hopper. The material homogenizing hopper can vibrate at a certain frequency under the action of the vibrating motor so as to discharge materials more uniformly, and a high-voltage component is convenient to charge the materials uniformly. The vibration motor can be a conventional driving motor.

In the above electrostatic sorting apparatus, preferably, the high-voltage mechanism includes an insulator support and a high-voltage component for generating an electric field, and the high-voltage component is provided on an inner wall of a casing of the electrostatic sorting apparatus through the insulator support. The high-pressure component is used for charging the materials discharged by the material homogenizing mechanism so as to separate the materials according to metal and nonmetal by utilizing the subsequent roller adsorption mechanism and the roller discharging mechanism.

In the above electrostatic separation apparatus, preferably, the roller adsorption mechanism includes an adsorption roller and a roller drive source for driving the adsorption roller to rotate, and the adsorption roller is connected with a ground wire. The effect that is connected with the earth connection on the adsorption roller lies in making the electric charge on the metal flow away through the earth connection, and metal powder can not adsorb on the adsorption roller surface under the effect of centrifugal force, and non-metal powder is because electric conductive property is poor, and it can adsorb on the adsorption roller surface always, through above-mentioned process, can realize the separation of metal and non-metal powder. The roller driving source may be a conventional driving motor.

In the above electrostatic separation apparatus, preferably, the discharge mechanism includes a brush assembly, and the brush assembly is disposed on the side surface of the drum adsorption mechanism through an interval adjustment mechanism with an adjustable distance. The brush subassembly can be brushed the non-metallic powder that adsorbs in adsorption cylinder surface and is fallen in order to realize unloading of non-metallic powder. The distance between brush subassembly and the adsorption drum can be adjusted wantonly through interval adjustment mechanism to the brush subassembly, and when adsorption drum was in the absorption stage, there was certain interval between the two, when adsorption drum was in the stage of unloading, in close contact with between the two.

In the above electrostatic separation equipment, preferably, the discharge mechanism includes a metal discharge port, a non-metal discharge port, a discharge port of the material to be circulated and a partition plate adjusting mechanism for adjusting the opening and closing of the metal discharge port, the non-metal discharge port and the discharge port of the material to be circulated. Through adjusting division board adjustment mechanism's position, can realize metal discharge gate, nonmetal discharge gate, treat that above-mentioned each discharge gate of circulation material discharge gate is opened at appropriate time quantum, for example when absorption is in the absorption stage, the metal discharge gate is opened, and the nonmetal discharge gate is closed, and when the absorption cylinder is in the stage of unloading, the nonmetal discharge gate is opened, and the metal discharge gate is closed. And returning the materials in the material outlet of the material to be circulated for retreatment.

As a general technical concept, the utility model also provides a waste circuit board integrated processing system includes interconnect's crushing equipment, air current sorting classification equipment, vibration winnowing equipment and foretell static sorting equipment in proper order. The discharge port of the crushing equipment is communicated with the material suction pipe of the airflow separation and classification equipment, the feeding port of the vibration winnowing equipment is communicated with the outlet at the bottom of the blanking box body of the airflow separation and classification equipment, and the discharge port of the top cover of the vibration winnowing equipment is communicated with the feeding mechanism of the electrostatic separation equipment. The crushing equipment is used for crushing the waste circuit boards into powder so as to be beneficial to subsequent air flow separation, and the type and the model of the crushing equipment are not limited as long as the crushing purpose can be achieved.

In the integrated processing system for waste circuit boards, preferably, the air current sorting and grading device comprises an upper box body, a blanking box body, a suction pipe and a discharge pipe, the upper box body is arranged on the upper portion of the blanking box body, the inner cavities of the upper box body and the blanking box body are communicated, the discharge pipe is arranged on the upper box body, the suction pipe is arranged on the blanking box body, and a grader assembly used for generating ascending air current is further arranged on the upper box body. The ascending air flow is that an ascending air flow is arranged in an inner cavity formed by the upper box body and the blanking box body which are communicated with each other and is used for generating negative pressure so as to suck materials from the material suction pipe and enter the inner cavity of the blanking box body.

In the integrated waste circuit board processing system, preferably, the outlet end of the suction pipe is provided with a refining assembly for uniformly dispersing the sucked material; the refining assembly comprises an air cap, the air cap comprises a cone hopper, a cap body and a connecting column, the cone hopper is arranged on the lower portion of the cap body, one end of the connecting column is connected with the cap body, and the other end of the connecting column is fixedly arranged on the outer side wall of the outlet end of the material suction pipe. Above-mentioned hood mainly used will inhale and inhale the material of inhaling in the material pipe and break up, and inspiratory material is discharged from the export of inhaling the material pipe, meets and locates the hood of inhaling material pipe exit end, and the material can strike the hood, will become a strand material and break up the dispersion even to do benefit to updraft and carry out the weight with the material and grade, avoid the material directly by updraft suction and discharge from the discharging pipe.

In the integrated waste circuit board processing system, preferably, the classifier component comprises an impeller and a driving motor for driving the impeller to rotate, and the impeller is arranged in an inner cavity of the upper box body. The impeller is driven by the driving motor to rotate and is used for generating updraft so as to achieve the purposes of absorbing materials and separating the materials, and the impeller is made of wear-resistant materials. The driving motor is a special variable-frequency speed-regulating motor and has special dustproof requirements.

In the integrated waste circuit board processing system, preferably, the material suction pipe comprises a vertical section and an inclined section which are connected with each other, an outlet end of the vertical section is located at the upper part of the blanking box body, and the inclined section obliquely penetrates through the side wall of the blanking box body. The included angle between the inclined section and the blanking box body is preferably 45 +/-0.1 degrees. The arrangement of the vertical section and the inclined section is beneficial to the suction of materials.

In the integrated waste circuit board processing system, preferably, the vibrating winnowing device comprises a frame, a vibrating screen, a top cover, a vibrating screen driving source for driving the vibrating screen to vibrate, and a fan assembly for providing ascending air flow to the vibrating screen; the vibrating screen is obliquely arranged on the rack, a lower discharge port and an upper discharge port are arranged on the vibrating screen, and the lower discharge port and the upper discharge port are respectively arranged at the upper end and the lower end of the vibrating screen; the top cover is provided with the vibrating screen top, the top cover is provided with a top cover discharge port, and the top cover discharge port is connected with an air suction assembly. The vibrating screen comprises a screen surface, wherein an air inlet cloth cylinder is arranged below the screen surface and connected with a fan assembly.

In the integrated processing system for waste circuit boards, preferably, the vibrating screen driving source comprises driving pieces arranged at the upper end and the lower end of the vibrating screen and a vibrating motor used for driving the driving pieces to move. Preferably, the driving sheets at the upper end and the lower end are connected through a transmission component.

In the integrated processing system for waste circuit boards, preferably, the upper discharge port is provided with a back-blowing component. The back-blowing component has the function of forming an obvious boundary between metal and nonmetal, so that the content of nonmetal powder in a metal discharge port (namely an upper discharge port) meets the requirement, namely the metal discharge port is in a normal working state, and the distance between a back-blowing air door and the screen surface of the vibrating screen is preferably about 3-40 mm.

In the integrated waste circuit board processing system, preferably, the feeding port is arranged on the top cover, and a discharger is arranged between the feeding port and the outlet at the bottom of the blanking box body.

In the integrated waste circuit board processing system, preferably, the bottom of the rack is provided with a rubber damper.

The utility model discloses a theory of operation and working process as follows: the working principle of the air flow sorting and grading equipment and the vibration winnowing equipment is that the metal and nonmetal powder are separated by the action of upward air flow according to the difference of specific gravity and suspension speed of the metal and nonmetal powder, so that the aim of extracting the metal from the waste circuit board is fulfilled. The electrostatic separation equipment utilizes different electrostatic properties of various materials to separate, so as to realize the separation of metals and nonmetals. Specifically, firstly, crushing equipment is utilized to crush the waste circuit board into powdery materials. The negative pressure that utilizes the grader subassembly in the air current sorting classification equipment to produce inhales the powdery material from inhaling the material pipe, utilizes the updraft that grader subassembly impeller (special wear-resisting material) produced, according to the difference of metal and nonmetal powder proportion and suspension velocity, carries out the light and heavy classification to the material that gets into the hierarchical intracavity, and light material (most is nonmetal powder) blows off from the side discharging pipe of upper portion box, gets into follow-up dust removal and absorbs the system, and heavy material falls into lower part blanking box, discharges the pan feeding mouth of bottom vibration winnowing equipment through the tripper. After the heavy materials enter the vibration winnowing equipment, the vibration winnowing equipment begins to sort, power parts such as a vibration motor, a fan and the like are arranged in the vibration winnowing equipment, and metal, metal and nonmetal mixed particles and light metal and nonmetal powder in the heavy materials can be separated by adjusting proper air quantity and vibration frequency. The metal is discharged from an upper outlet of the vibration winnowing equipment, the metal and nonmetal mixed particles are discharged from a lower discharge port of the vibration winnowing equipment, the metal and nonmetal mixed particles are returned to the crushing equipment through the screw conveyer to be crushed again, and the light metal and nonmetal powder is discharged through the suction component generated by the discharge port of the top cover at the top to be adsorbed by negative pressure and enters a subsequent dust removal and suction system and the electrostatic separation equipment for separation. After the light metal and the nonmetal powder enter the electrostatic separation equipment, the materials reach the high-voltage part through the feeding mechanism and the refining mechanism to be charged, the metal has strong conductivity, the charges are neutral after contacting with the adsorption roller and flowing away through a grounding wire, the charges enter the metal discharge hole under the action of centrifugal force, the nonmetal powder (such as plastic) is tightly adsorbed on the surface of the adsorption roller after contacting with the adsorption roller due to poor conductivity, and then the nonmetal powder falls into the nonmetal discharge hole after being brushed down by the brush component, so that the separation of the light metal and the nonmetal powder can be realized.

Compared with the prior art, the utility model has the advantages of:

1. the electrostatic separation equipment in the utility model can separate metal and nonmetal powder through different electrostatic properties of metal and nonmetal, has the advantage of high separation efficiency of metal and nonmetal,

2. the utility model discloses an integrated processing system of old and useless circuit board through the combined use that adopts crushing apparatus, air current to select separately grading plant, vibration winnowing equipment and static sorting equipment, can realize the high-efficient separation of metal (including the separation of heavy burden material and light material), nonmetal, can realize the recycle of various different resources, and separation efficiency is high, and the wasting of resources is very few, and resource utilization is high.

3. The utility model provides an integrated processing system of electrostatic separation equipment and old and useless circuit board has advantages such as simple structure, convenient operation, separation effect height, and the metal is selected separately the effect and can be reached more than 95%.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view (front view) of an electrostatic sorting apparatus in an embodiment.

Fig. 2 is a schematic structural view (side view) of the electrostatic sorting apparatus in the example.

Fig. 3 is a schematic structural diagram of the integrated processing system for waste circuit boards in the embodiment.

Fig. 4 is a schematic structural view (front view) of an air current sorting and classifying apparatus in the embodiment.

Fig. 5 is a schematic structural view (side view) of an air current sorting and classifying apparatus in the embodiment.

FIG. 6 is a schematic structural diagram of the hood in the embodiment.

Fig. 7 is a schematic structural view (perspective view) of the vibrating air classification device in the embodiment.

Fig. 8 is a schematic structural view (side view) of the vibrating air classification device in the exemplary embodiment.

Fig. 9 is a schematic structural view (front view) of the vibrating air classification device in the exemplary embodiment.

Fig. 10 is a schematic structural view (rear view) of the vibrating air classification device in the exemplary embodiment.

Illustration of the drawings:

1. an upper box body; 2. a blanking box body; 3. a material suction pipe; 4. a discharge pipe; 5. a hood; 51. a conical hopper; 52. a cap body; 53. connecting columns; 6. an impeller; 7. a drive motor; 101. a frame; 102. vibrating screen; 103. a top cover; 104. a fan assembly; 105. a lower discharge port; 106. an upper discharge port; 107. a top cover discharge hole; 108. a driving plate; 109. a vibration motor; 110. a feeding port; 201. a feed hopper; 202. material refining spiral; 203. a refining screw drive source; 204. a material homogenizing hopper; 205. a boom; 206. a material homogenizing plate; 207. a vibration motor; 208. an insulator post; 209. a high voltage component; 210. an adsorption drum; 211. a drum driving source; 212. a brush assembly; 213. a spacing adjustment mechanism; 214. a metal discharge port; 215. a non-metal discharge port; 216. a discharge hole for the material to be circulated; 217. a partition plate adjusting mechanism; s1, crushing equipment; s2, airflow sorting and grading equipment; s3, vibrating winnowing equipment; s4, electrostatic sorting equipment.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by an existing method.

Example (b):

as shown in fig. 1 and 2, the electrostatic separation device S4 of this embodiment includes a feeding mechanism, a refining mechanism, a roller adsorption mechanism, a discharging mechanism, and a high-voltage mechanism for charging the material discharged by the refining mechanism, the refining mechanism is disposed below the feeding mechanism, the high-voltage mechanism is disposed at an outlet of the refining mechanism, the roller adsorption mechanism and the high-voltage mechanism are disposed adjacent to each other, the distance between the roller discharging mechanism and the roller adsorption mechanism is adjustable, and the discharging mechanism is disposed below the roller adsorption mechanism and the roller discharging mechanism.

In this embodiment, the feeding mechanism includes a feeding hopper 201, a refining screw 202 and a refining screw driving source 203 for driving the refining screw 202 to rotate, and the refining screw 202 is disposed at the bottom of the feeding hopper 201. The specific type, kind and installation position of the refining screw driving source 203 are not limited, and conventional equipment on the market can be adopted.

In this embodiment, the homogenizing mechanism includes a homogenizing hopper 204, the homogenizing hopper 204 is suspended below the feeding mechanism by a suspension rod 205, an outlet of the homogenizing hopper 204 is provided with a homogenizing plate 206, and a vibration motor 207 is provided on a side surface of the homogenizing hopper 204. The specific type, kind and installation position of the vibration motor 207 are not limited, and conventional equipment on the market can be adopted.

In this embodiment, the high voltage mechanism includes an insulator support 208 and a high voltage component 209 for generating an electric field, and the high voltage component 209 is provided on the inner wall of the housing of the electrostatic sorting apparatus through the insulator support 208.

In this embodiment, the roller suction mechanism includes a suction roller 210 and a roller driving source 211 for driving the suction roller 210 to rotate, and the suction roller 210 is connected with a ground wire. The specific type, kind and installation position of the roller driving source 211 are not limited, and conventional equipment on the market can be adopted.

In this embodiment, the roller unloading mechanism includes a brush assembly 212, and the brush assembly 212 is disposed on the side of the roller adsorbing mechanism with adjustable distance via a distance adjusting mechanism 213.

In this embodiment, the discharging mechanism includes a metal discharging port 214, a non-metal discharging port 215, a material discharging port 216 to be circulated, and a partition plate adjusting mechanism 217 for adjusting the opening and closing of the metal discharging port 214, the non-metal discharging port 215, and the material discharging port 216 to be circulated.

As shown in fig. 3, the integrated waste circuit board processing system of this embodiment sequentially includes a crushing device S1, an air current sorting and classifying device S2, a vibrating air separation device S3, and an electrostatic sorting device S4, which are connected to each other. The discharge port of the crushing device S1 is communicated with the material suction pipe 3 of the airflow separation and classification device S2, the feeding port 110 of the vibration air separation device S3 is communicated with the outlet at the bottom of the blanking box body 2 of the airflow separation and classification device S2, and the top cover discharge port 107 of the vibration air separation device S3 is communicated with the feeding mechanism of the electrostatic separation device S4. The specific type and variety of the crushing equipment S1 are not limited, and the waste circuit board can be crushed.

As shown in fig. 4-5, the airflow separation and classification device S2 of the present embodiment includes an upper box 1, a blanking box 2, a material suction pipe 3 and a material discharge pipe 4, the upper box 1 is disposed on the upper portion of the blanking box 2, the inner cavities of the upper box 1 and the blanking box 2 are communicated, the material discharge pipe 4 is disposed on the upper box 1, the material suction pipe 3 is disposed on the blanking box 2, and the upper box 1 is further provided with a classifier assembly for generating updraft.

As shown in fig. 6, in this embodiment, the outlet end of the suction pipe 3 is provided with a refining assembly for uniformly dispersing the suction material. Specifically, the refining assembly comprises an air cap 5, the air cap 5 comprises a cone bucket 51, a cap body 52 and a connecting column 53, the cone bucket 51 is arranged at the lower part of the cap body 52, one end of the connecting column 53 is connected with the cap body 52, and the other end of the connecting column 53 is fixedly arranged on the outer side wall of the outlet end of the material suction pipe 3.

In this embodiment, the classifier assembly includes an impeller 6 and a driving motor 7 for driving the impeller 6 to rotate, and the impeller 6 is disposed in the inner cavity of the upper case 1. The impeller 6 needs to have good wear resistance, and the driving motor 7 needs to have dustproof requirement, and can adopt the existing conventional equipment on the market.

In this embodiment, inhale material pipe 3 and include interconnect's vertical section and slope section, the exit end of vertical section is located the upper portion of blanking box 2, and the lateral wall of blanking box 2 is run through in the slope section slope, and its the contained angle of the two is 45 degrees.

As shown in fig. 7-10, in the present embodiment, the vibratory air classification apparatus S3 includes a frame 101, a vibrating screen 102, a top cover 103, a vibrating screen drive source for vibrating the vibrating screen 102, and a fan assembly 104 for providing an updraft into the vibrating screen 102; the vibrating screen 102 is obliquely arranged on the frame 101, a lower discharge port 105 and an upper discharge port 106 are arranged on the vibrating screen 102, and the lower discharge port 105 and the upper discharge port 106 are respectively arranged at the upper end and the lower end of the vibrating screen 102; the top cover 103 is arranged above the vibrating screen 102, a top cover discharge port 107 is arranged on the top cover 103, and the top cover discharge port 107 is connected with an air suction assembly. The specific type, kind and installation position of the fan assembly 104 are not limited, and the fan assembly 104 may be disposed in the frame 101 as long as the fan assembly can provide an updraft for the vibrating screen 102.

In this embodiment, the driving source of the vibrating screen includes a driving plate 108 disposed at the upper and lower ends of the vibrating screen 102 and a vibrating motor 109 for driving the driving plate 108 to move. The specific type, kind and installation position of the vibration motor 109 are not limited, and the vibration motor 109 may be disposed in the rack 101 by using conventional equipment on the market.

In this embodiment, a back-blowing assembly is disposed at the upper discharge port 106.

In this embodiment, the feeding port 110 is disposed on the top cover 103, and a discharger is disposed between the feeding port 110 and the outlet at the bottom of the blanking box 2.

Claims

1. The utility model provides an electrostatic separation equipment, its characterized in that includes feed mechanism, refining mechanism, cylinder adsorption device, shedding mechanism, discharge mechanism and is used for making refining mechanism exhaust material take the high-pressure mechanism of electric charge, refining mechanism locates the feed mechanism below, high-pressure mechanism locates the exit of refining mechanism, cylinder adsorption device with high-pressure mechanism is adjacent to be set up, shedding mechanism locates apart from the adjustable cylinder adsorption device side, discharge mechanism locates cylinder adsorption device and discharge mechanism below.

2. The electrostatic sorting apparatus according to claim 1, wherein the feeding mechanism comprises a feed hopper (201), a refining screw (202) and a refining screw drive source (203) for rotating the refining screw (202), the refining screw (202) being provided at the bottom of the feed hopper (201).

3. The electrostatic sorting apparatus according to claim 1, wherein the homogenizing mechanism comprises a homogenizing hopper (204), the homogenizing hopper (204) is suspended below the feeding mechanism through a suspension rod (205), an outlet of the homogenizing hopper (204) is arranged on a homogenizing plate (206), and a vibrating motor (207) is arranged on the side surface of the homogenizing hopper (204).

4. An electrostatic classifying apparatus according to any one of claims 1 to 3, wherein the high voltage mechanism includes an insulator support (208) and a high voltage part (209) for generating an electric field, the high voltage part (209) being provided on an inner wall of a casing of the electrostatic classifying apparatus through the insulator support (208).

5. The electrostatic sorting apparatus according to any one of claims 1 to 3, wherein the drum adsorption mechanism includes an adsorption drum (210) and a drum driving source (211) for driving the adsorption drum (210) to rotate, and a ground wire is connected to the adsorption drum (210).

6. The electrostatic sorting apparatus according to any of claims 1-3, wherein the discharging mechanism comprises a brush assembly (212), and the brush assembly (212) is arranged at the side of the roller adsorption mechanism in a distance-adjustable manner through a spacing adjustment mechanism (213).

7. The electrostatic sorting apparatus according to any one of claims 1 to 3, wherein the discharging mechanism comprises a metal discharging port (214), a non-metal discharging port (215), a discharging port (216) for the material to be circulated, and a partition plate adjusting mechanism (217) for adjusting the opening and closing of the metal discharging port (214), the non-metal discharging port (215), and the discharging port (216) for the material to be circulated.

8. An integrated waste circuit board treatment system, which is characterized by comprising a crushing device, an air flow sorting and grading device, a vibration air separation device and the electrostatic sorting device as claimed in any one of claims 1 to 7 which are connected with each other in sequence.

9. The integrated waste circuit board processing system according to claim 8, wherein the air current sorting and grading equipment comprises an upper box body (1), a blanking box body (2), a material sucking pipe (3) and a material discharging pipe (4), the upper box body (1) is arranged at the upper part of the blanking box body (2), the inner cavities of the upper box body (1) and the blanking box body (2) are communicated, the material discharging pipe (4) is arranged on the upper box body (1), the material sucking pipe (3) is arranged on the blanking box body (2), and a grader assembly for generating ascending air current is further arranged on the upper box body (1);

the outlet end of the material suction pipe (3) is provided with a material homogenizing assembly for uniformly dispersing the sucked materials; the material homogenizing assembly comprises an air cap (5), the air cap (5) comprises a conical hopper (51), a cap body (52) and a connecting column (53), the conical hopper (51) is arranged at the lower part of the cap body (52), one end of the connecting column (53) is connected with the cap body (52), and the other end of the connecting column is fixedly arranged on the outer side wall of the outlet end of the material sucking pipe (3);

the grader assembly comprises an impeller (6) and a driving motor (7) used for driving the impeller (6) to rotate, and the impeller (6) is arranged in an inner cavity of the upper box body (1).

10. The waste circuit board integrated processing system according to claim 8 or 9, wherein the vibrating air separation equipment comprises a frame (101), a vibrating screen (102), a top cover (103), a vibrating screen driving source for driving the vibrating screen (102) to vibrate, and a fan assembly (104) for providing an ascending air flow into the vibrating screen (102); the vibrating screen (102) is obliquely arranged on the rack (101), a lower discharge hole (105) and an upper discharge hole (106) are formed in the vibrating screen (102), and the lower discharge hole (105) and the upper discharge hole (106) are respectively formed in the upper end and the lower end of the vibrating screen (102); the top cover (103) is arranged above the vibrating screen (102), a top cover discharge hole (107) is formed in the top cover (103), and a suction assembly is connected to the top cover discharge hole (107).