An airflow separation mechanism for recycling copper powder from waste PCB boards

Abstract

This utility model relates to the field of copper powder recycling technology, specifically an airflow sorting mechanism for recycling copper powder from waste PCB boards. It includes a sorting chamber with multiple support rings fixedly installed at equal intervals on its inner surface. Multiple discharge pipes are fixedly connected at equal intervals at the lower end of the outer surface of the sorting chamber. A sorting assembly is disposed inside the sorting chamber, comprising filter cylinders rotatably connected to the multiple support rings. A feeding assembly is disposed at one end of the sorting chamber. In this utility model, material is discharged into the horizontal filter cylinder with air. As the filter cylinder rotates, material of different diameters passes through different filter screens for sorting. The sorted material then passes through adjacent filter cylinders and is discharged into the corresponding discharge pipes. By installing different numbers and mesh sizes of filter screens, the sorting range of the material can be adjusted, facilitating multi-stage sorting according to different particle diameters and improving the sorting range and accuracy of the sorting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of copper powder recycling technology, specifically an airflow sorting mechanism for recycling copper powder from waste PCB boards. Background Technology

[0002] Circuit boards are core components of electronic products. With the increase in electronic products, the number of waste circuit boards is also gradually increasing, requiring the recycling of a large number of waste circuit boards. When recycling circuit boards, it is necessary to recover the copper powder on the surface. This is usually done by air classifiers. Existing air classifiers are the equipment for separating copper powder during the recycling of waste circuit boards. They are easy to place and operate stably, and facilitate mixing with air. Under the combined action of gravity, electromagnetic excitation force, wind force, etc., the particle group is loosened, fluidized and stratified according to the density difference. The heavy particles are screened and separated under the action of friction and vibration, thereby realizing the separation of metal and plastic by air classifiers.

[0003] Existing airflow separation mechanisms are only convenient for separating copper powder by utilizing the differences in specific gravity and particle size of different materials to achieve specific gravity air separation. However, if it is necessary to perform multi-stage separation of different materials according to different particle diameters, it is not convenient to adjust the separation range of the separation mechanism, and the separation range is limited. Utility Model Content

[0004] The purpose of this invention is to provide an airflow sorting mechanism for recycling copper powder from waste PCB boards, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An airflow separation mechanism for recycling copper powder from waste PCB boards includes:

[0007] The sorting bin has multiple support rings fixedly installed at equal intervals on its inner surface, and multiple discharge pipes fixedly connected at equal intervals at the lower end of its outer surface. Both the sorting bin and the outer surface of the support rings have a No. 1 slot.

[0008] A sorting assembly is set inside the sorting chamber. The sorting assembly includes a filter cylinder rotatably connected inside multiple support rings. Multiple No. 2 slots are equidistantly opened on the outer surface of the filter cylinder, and multiple filter screens are equidistantly inserted inside the filter cylinder.

[0009] The feeding component is located at one end of the sorting bin.

[0010] Furthermore, a first arc-shaped plate is movably inserted into the first slot, a connecting ear is fixedly installed on the outer surface of the first arc-shaped plate, multiple threaded grooves are equidistantly opened on the outer surface of the sorting bin, a bolt is movably inserted into the connecting ear, and the bolt passes through the connecting ear and screws into the threaded groove for connection.

[0011] Furthermore, multiple limiting strips are fixedly installed at equal intervals on the inner surface of the filter cartridge, a second arc-shaped plate is movably inserted into the second slot, and multiple scrapers are fixedly installed at equal intervals on the outer surface of the filter cartridge.

[0012] Furthermore, a feed pipe is fixedly installed at one end of the filter cartridge, and a rotating frame is fixedly installed at the other end of the filter cartridge. Both the feed pipe and the rotating frame movably pass through the sorting bin, and a No. 1 motor capable of driving the rotating frame to rotate is fixedly installed at the other end of the sorting bin.

[0013] Preferably, multiple top rods are fixedly installed at equal angles on the inner surface of the first arc-shaped plate, and an extension frame is fixedly installed at one end of the sorting bin.

[0014] Preferably, the feeding assembly includes:

[0015] The hopper is fixedly installed at one end of the sorting bin using a bracket.

[0016] A three-way pipe is fixedly connected to the lower end of the silo.

[0017] The rotary joint is fixedly installed at one end of the tee pipe and is fixedly connected to the feed pipe.

[0018] Preferably, a spiral rod is rotatably connected inside the hopper, a No. 2 motor capable of driving the spiral rod to rotate is fixedly installed at the upper end of the hopper, a fan is fixedly installed on the upper surface of the extension frame, and one end of the fan is fixedly connected to a three-way pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. The No. 1 arc plate is easily disassembled by screwing together bolts and threaded grooves. Then, the No. 2 arc plate is disassembled from the No. 1 slot. By adding or removing filter screens of different mesh sizes, the material is discharged into the transverse filter cylinder along with the air. When the filter cylinder rotates, materials of different diameters pass through different filter screens for sorting. The sorted material then passes through the corresponding section of the filter cylinder and is discharged into the corresponding discharge pipe. By installing different numbers and mesh sizes of filters, the sorting range of the material can be adjusted, facilitating multi-stage sorting according to different particle diameters and improving the sorting range and accuracy of the sorting mechanism.

[0021] 2. Unscreened copper powder is fed into the hopper. Motor No. 2 operates, driving the screw rotor to rotate and conveying the copper powder into the three-way pipe. The blower operates, introducing air into the three-way pipe, allowing the air to carry the copper powder into the filter cartridge, providing power for the movement of the copper powder. The copper powder is blocked and sorted by the filter screen. Then, the air is discharged from the unsealed discharge pipe at the tail. Motor No. 1 operates, driving the filter cartridge to rotate. During rotation, the scraper scrapes across the inner wall of the sorting bin, discharging the screened material from the inner wall of the sorting bin through the discharge pipe into the collection bag, making it easier for the copper powder inside the sorting bin to be discharged. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the vertical cross-sectional structure of the sorting bin and filter cartridge in this utility model;

[0024] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the feeding component in this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled side cross-section of the filter cartridge and filter screen in this utility model;

[0026] Figure 5 This is a side cross-sectional structural diagram of the filter cartridge and support ring in this utility model.

[0027] In the diagram: 1. Sorting bin; 101. Discharge pipe; 102. Support ring; 103. Arc plate No. 1; 104. Connecting ear; 105. Bolt; 106. Threaded groove; 107. Slot No. 1; 108. Top rod; 109. Extension frame; 2. Sorting assembly; 201. Filter cartridge; 202. Feed pipe; 203. Rotating frame; 204. Motor No. 1; 205. Scraper; 206. Slot No. 2; 207. Filter screen; 208. Arc plate No. 2; 209. Limiting strip; 3. Feeding assembly; 301. Hopper; 302. T-pipe; 303. Rotary joint; 304. Spiral rotating rod; 305. Motor No. 2; 306. Fan. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5In this embodiment of the present invention, an airflow sorting mechanism for recycling copper powder from waste PCB boards includes a sorting chamber 1. Multiple support rings 102 are fixedly installed at equal intervals on the inner surface of the sorting chamber 1, dividing the interior of the sorting chamber 1 into multiple spaces to prevent the copper powder from mixing after screening. Multiple discharge pipes 101 are fixedly connected at equal intervals at the lower end of the outer surface of the sorting chamber 1. Collection bags are installed at the lower ends of the used discharge pipes 101, and unused discharge pipes 101 are blocked. A number is provided on the outer surface of both the sorting chamber 1 and the support rings 102. The sorting component 2 is located inside the sorting chamber 1. The sorting component 2 includes a filter cylinder 201 rotatably connected inside multiple support rings 102. The filter cylinder 201 is composed of multiple sections of filter screens with different mesh sizes, which facilitates the sieving of powders of different diameters in each section. Multiple second-order slots 206 are equidistantly opened on the outer surface of the filter cylinder 201. Multiple filter screens 207 are equidistantly inserted into the filter cylinder 201. The multiple filter screens 207 have different mesh sizes, which facilitates the sieving of particles of different diameters. The feeding component 3 is located at one end of the sorting chamber 1.

[0030] Specifically, air carries unscreened copper powder into the filter cartridge 201 for screening via the feeding assembly 3. The copper powder is screened to different degrees through the filter cartridges 201 and filter screens 207 with different mesh sizes.

[0031] Example 1

[0032] like Figure 1 , Figure 4 As shown in Figure 5, in this embodiment, a first arc-shaped plate 103 is movably inserted into the first slot 107. A connecting ear 104 is fixedly installed on the outer surface of the first arc-shaped plate 103. Multiple threaded grooves 106 are equidistantly opened on the outer surface of the sorting chamber 1. Bolts 105 are movably inserted into the connecting ear 104 and screwed into the threaded groove 106. Multiple push rods 108 are fixedly installed at equal angles on the inner surface of the first arc-shaped plate 103. The push rods 108 abut against the second arc-shaped plate 208, so that the second arc-shaped plate 208 can rotate with the filter cartridge 201 inside the support ring 102. An extension frame 109 is fixedly installed at one end of the sorting chamber 1. The second arc-shaped plate 208 is movably inserted into the second slot 206. The second arc-shaped plate 208 is used to hold the filter screen 207 and limit its position.

[0033] In this embodiment, the first arc plate 103 is easily disassembled by screwing together the bolt 105 and the threaded groove 106. Then, the second arc plate 208 is disassembled from the first slot 107. By adding and removing filter screens 207 with different mesh sizes, the material is discharged into the transverse filter cylinder 201 with the air. When the filter cylinder 201 rotates, the material of different diameters passes through different filter screens 207 for sorting. Then, the sorted material passes through the corresponding section of the filter cylinder 201 and is discharged into the corresponding discharge pipe 101. By installing different numbers and different mesh sizes of filters 207, the sorting range of the material can be adjusted, which facilitates multi-stage sorting according to different particle diameters and improves the sorting range and sorting accuracy of the sorting mechanism.

[0034] like Figure 1 and Figure 3 As shown, in this embodiment, the feeding assembly 3 includes: a hopper 301 fixedly installed at one end of the sorting bin 1 via a bracket; a three-way pipe 302 fixedly connected to the lower end of the hopper 301; a rotary joint 303 fixedly installed at one end of the three-way pipe 302 and fixedly connected to the feed pipe 202; the rotary joint 303 ensures that copper powder can be normally transported into the filter cartridge 201 while the feed pipe 202 rotates; a spiral rod 304 is rotatably connected inside the hopper 301; a second motor 305 capable of driving the spiral rod 304 to rotate is fixedly installed at the upper end of the hopper 301; a fan 306 is fixedly installed on the upper surface of the extension frame 109; one end of the fan 306 is fixedly connected to the three-way pipe 302.

[0035] In practice, the unscreened copper powder is fed into the hopper 301. The second motor 305 operates, driving the spiral rotor 304 to rotate and transport the copper powder into the three-way pipe 302. The fan 306 operates, introducing air into the three-way pipe 302, allowing the air to carry the copper powder into the filter cartridge 201, providing power for the movement of the copper powder. The copper powder is blocked and sorted by the filter screen 207, and then the air is discharged from the unsealed discharge pipe 101 at the tail end.

[0036] Example 2

[0037] Based on Example 1, in order to compensate for the problem that copper powder on the inner wall of sorting chamber 1 is not easy to be discharged.

[0038] like Figure 2 and Figure 4As shown, in this embodiment, multiple limiting strips 209 are fixedly installed at equal intervals on the inner surface of the filter cylinder 201. The limiting strips 209 are used to fix the filter screen 207 to prevent it from moving under the push of air and improve its stability. Multiple scrapers 205 are fixedly installed at equal intervals on the outer surface of the filter cylinder 201. A feed pipe 202 is fixedly installed at one end of the filter cylinder 201, and a rotating frame 203 is fixedly installed at the other end of the filter cylinder 201. Both the feed pipe 202 and the rotating frame 203 movably pass through the sorting chamber 1. A No. 1 motor 204 capable of driving the rotating frame 203 to rotate is fixedly installed at the other end of the sorting chamber 1.

[0039] In practice, motor 204 operates, driving filter cartridge 201 to rotate. When rotating, scraper 205 scrapes across the inner wall of sorting chamber 1, discharging the raw material screened from the inner wall of sorting chamber 1 through discharge pipe 101 into the collection bag, making it easier to discharge copper powder inside sorting chamber 1.

[0040] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An airflow separation mechanism for recycling copper powder from waste PCB boards, characterized in that, include: The sorting bin (1) has multiple support rings (102) fixedly installed at equal intervals on its inner surface. Multiple discharge pipes (101) are fixedly connected at equal intervals at the lower end of the outer surface of the sorting bin (1). A slot (107) is opened on the outer surface of both the sorting bin (1) and the support rings (102). The sorting component (2) is located inside the sorting chamber (1). The sorting component (2) includes a filter cylinder (201) rotatably connected inside multiple support rings (102). Multiple second slots (206) are equidistantly opened on the outer surface of the filter cylinder (201). Multiple filter screens (207) are equidistantly inserted inside the filter cylinder (201). The feeding component (3) is located at one end of the sorting bin (1).

2. The airflow separation mechanism for recycling copper powder from waste PCB boards according to claim 1, characterized in that, A first arc plate (103) is movably inserted into the first slot (107). A connecting ear (104) is fixedly installed on the outer surface of the first arc plate (103). Multiple threaded grooves (106) are equidistantly opened on the outer surface of the sorting bin (1). A bolt (105) is movably inserted into the connecting ear (104). The bolt (105) passes through the connecting ear (104) and screws into the threaded groove (106).

3. The airflow sorting mechanism for recycling copper powder from waste PCB boards according to claim 1, characterized in that, Multiple limiting strips (209) are fixedly installed at equal intervals on the inner surface of the filter cartridge (201), a second arc plate (208) is movably inserted into the second slot (206), and multiple scrapers (205) are fixedly installed at equal intervals on the outer surface of the filter cartridge (201).

4. The airflow sorting mechanism for recycling copper powder from waste PCB boards according to claim 1, characterized in that, A feed pipe (202) is fixedly installed at one end of the filter cartridge (201), and a rotating frame (203) is fixedly installed at the other end of the filter cartridge (201). The feed pipe (202) and the rotating frame (203) both movably pass through the sorting bin (1). A No. 1 motor (204) capable of driving the rotating frame (203) to rotate is fixedly installed at the other end of the sorting bin (1).

5. The airflow sorting mechanism for recycling copper powder from waste PCB boards according to claim 4, characterized in that, Multiple top rods (108) are fixedly installed at equal angles on the inner surface of the first arc plate (103), and an extension frame (109) is fixedly installed at one end of the sorting bin (1).

6. The airflow sorting mechanism for recycling copper powder from waste PCB boards according to claim 5, characterized in that, The feeding assembly (3) includes: The hopper (301) is fixedly installed at one end of the sorting bin (1) by a bracket; The three-way pipe (302) is fixedly connected to the lower end of the hopper (301); The rotary joint (303) is fixedly installed at one end of the tee pipe (302) and is fixedly connected to the feed pipe (202).

7. The airflow sorting mechanism for recycling copper powder from waste PCB boards according to claim 6, characterized in that, The hopper (301) is rotatably connected to a spiral rod (304). A second motor (305) capable of driving the spiral rod (304) to rotate is fixedly installed at the upper end of the hopper (301). A fan (306) is fixedly installed on the upper surface of the extension frame (109). One end of the fan (306) is fixedly connected to a three-way pipe (302).

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