Multifunctional fragment sorting device for recycling waste CRT (cathode ray tube) display screen

Abstract

The utility model relates to the technical field of display screen recovery, in particular to a multifunctional fragment sorting device for waste CRT display screen recovery, which comprises a first sorting mechanism and a second sorting mechanism, the first sorting mechanism is mounted on the second sorting mechanism, and the discharge side of the first sorting mechanism is communicated with the inside of the second sorting mechanism; the first sorting mechanism comprises a sorting cylinder and a magnetic sorter arranged in the sorting cylinder. Various metal substances in the CRT display screen fragments are separated and collected through the first sorting mechanism and the second sorting mechanism, iron metal in the CRT display screen fragments is separated and obtained through the first sorting mechanism, and then non-iron conductive metal in the CRT display screen fragments is separated and obtained through the second sorting mechanism. And efficient and rapid separation of various metals is realized.

Description

Technical Field

[0001] This utility model relates to the field of display screen recycling technology, specifically a multi-functional fragment sorting device for recycling waste CRT displays. Background Technology

[0002] With the rapid development of electronic technology, CRT (cathode ray tube) displays have been gradually replaced by new display technologies such as LCD and LED, resulting in a large number of discarded CRT displays needing to be recycled. CRT displays contain a variety of metal materials, including ferrous metals (such as steel frames and shielding covers) and non-ferrous conductive metals (such as copper coils and aluminum components), which have high recycling value.

[0003] Traditional recycling methods typically involve manual sorting or simple mechanical separation. Manual sorting relies on experience, is labor-intensive, and inefficient. Ordinary magnetic separators can only separate ferrous metals and cannot effectively distinguish between non-ferrous conductive metals and other non-metallic fragments. Furthermore, due to the lack of a multi-stage separation mechanism, ferrous metals and non-ferrous conductive metals are easily mixed in ordinary magnetic separators, resulting in insufficient metal purity and affecting subsequent smelting or reuse. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional fragment sorting device for recycling waste CRT displays, 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] A multifunctional fragment sorting device for recycling waste CRT displays includes a first sorting mechanism and a second sorting mechanism. The first sorting mechanism is mounted on the second sorting mechanism, and the discharge side of the first sorting mechanism is connected to the interior of the second sorting mechanism. The first sorting mechanism includes a sorting cylinder and a magnetic separator disposed inside the sorting cylinder. The magnetic separator includes a rotating shaft and multiple perforated plates mounted on the rotating shaft. Electromagnets are disposed inside the perforated plates. The interior of the sorting cylinder is provided with a first partition plate and a second partition plate. The inner areas of the first partition plate and the second partition plate are ferrous metal collection areas, and the other areas of the sorting cylinder are non-magnetic areas. The first partition plate is located directly above the second partition plate, and a gap is left between the first partition plate and the second partition plate for the perforated plates to pass through.

[0007] As a further embodiment of this utility model: a power supply is installed at the bottom of the perforated plate, and an elastic button is provided at the lower end of the rotating shaft. The elastic button is electrically connected to the power supply, and the power supply is electrically connected to the electromagnet.

[0008] As a further embodiment of this utility model: a support column is fixedly installed at the bottom of the sorting cylinder, the lower end of the rotating shaft is rotatably connected to the support column, and an installation groove is provided at the upper end of the support column. The inner wall of the installation groove has protrusions, and the protrusions are set in the non-magnetic area.

[0009] As a further embodiment of this utility model: the sorting cylinder is provided with a top cover, and a rotary motor is fixedly installed on the top cover, with the output end of the rotary motor being fixedly connected to the rotating shaft.

[0010] As a further improvement of this utility model: the upper cover is also provided with an air inlet, which is connected to the iron metal collection area of ​​the sorting cylinder. The air inlet is used to connect to an air pump. The side wall of the sorting cylinder is provided with an opening, which is set corresponding to the iron metal collection area. A side door is detachably installed in the opening, and an exhaust port is provided on the side door.

[0011] As a further embodiment of this utility model: the second sorting mechanism includes a housing mounted on a base, a conveyor belt installed inside the housing, and a magnetic roller that generates a high-frequency changing magnetic field when rotating. The housing has a first discharge port and a second discharge port on the side away from the first sorting mechanism, and a baffle plate is provided inside the housing between the first discharge port and the second discharge port.

[0012] As a further improvement of this utility model: a first drive motor for driving the conveyor belt and a second drive motor for driving the magnetic roller are installed on the outer side of the housing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this utility model separates and collects various metal substances in CRT display screen fragments by setting a first sorting mechanism and a second sorting mechanism. First, the first sorting mechanism is used to separate and obtain ferrous metals from the CRT display screen fragments, and then the second sorting mechanism is used to separate and obtain non-ferrous conductive metals from the CRT display screen fragments, thereby achieving efficient and rapid sorting of various metals. Attached Figure Description

[0014] Figure 1 A schematic diagram of a multi-functional fragment sorting device for recycling waste CRT displays.

[0015] Figure 2 A schematic diagram of the first sorting mechanism in a multi-functional fragment sorting device for recycling waste CRT displays.

[0016] Figure 3 A schematic diagram of the first sorting mechanism in a multi-functional fragment sorting device for recycling waste CRT displays, after removing the top cover and a side door.

[0017] Figure 4A schematic diagram of the magnetic separator in a multi-functional fragment sorting device for recycling waste CRT displays.

[0018] Figure 5 A schematic diagram of the rotating shaft and support column in a multi-functional fragment sorting device for recycling waste CRT displays.

[0019] Figure 6 A schematic diagram of the second sorting mechanism in a multi-functional fragment sorting device for recycling waste CRT displays.

[0020] In the diagram: 10-First sorting mechanism, 11-Sorting cylinder, 111-Side door, 112-Exhaust port, 12-Top cover, 121-Feed inlet, 122-Air inlet, 13-Rotary motor, 14-Magnetic separator, 141-Rotating shaft, 142-Perforated plate, 143-Power supply, 144-Elastic button, 15-First partition plate, 16-Support column, 161-Protrusion, 17-Second partition plate, 20-Second sorting mechanism, 21-First drive motor, 22-Second drive motor, 23-First discharge port, 24-Second discharge port, 25-Conveyor belt, 26-Magnetic roller, 27-Baffle plate, 30-Base. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6In this embodiment of the present invention, a multifunctional fragment sorting device for recycling waste CRT displays includes a first sorting mechanism 10 and a second sorting mechanism 20. The first sorting mechanism 10 is installed on the second sorting mechanism 20, and the discharge side of the first sorting mechanism 10 is connected to the interior of the second sorting mechanism 20. The first sorting mechanism 10 is used to separate and obtain ferrous metals from the CRT display fragments, and the second sorting mechanism 20 is used to separate and obtain non-ferrous conductive metals from the CRT display fragments. The first sorting mechanism 10 includes a sorting cylinder 11 and a magnetic separator 14 disposed inside the sorting cylinder 11. The magnetic separator 14 includes a rotating shaft 141 and a plurality of perforated plates 142 mounted on the rotating shaft 141. An electromagnet is disposed inside the perforated plate 142. When the electromagnet is energized, the perforated plate 142 adsorbs ferrous metals from the fragments, while other substances pass through the perforated plate 142 and fall freely. The sorting cylinder 11 is provided with a first partition plate 15 and a second partition plate 17. The first partition plate 15 and the second partition plate 17 have the same structure and are both fan-shaped. Inside the sorting cylinder 11, the inner areas of the first partition plate 15 and the second partition plate 17 are ferrous metal collection areas. Other areas are non-magnetic areas; the first partition plate 15 is located directly above the second partition plate 17, and a gap is left between the first partition plate 15 and the second partition plate 17 for the perforated plate 142 to pass through. During the separation of ferrous metals, the perforated plate 142 is initially located inside the non-magnetic area. When the CRT display fragments fall freely in the non-magnetic area, the ferrous metals are adsorbed onto the surface of the perforated plate 142. Other substances fall freely after passing through the perforated plate 142. After the separation is completed, the rotating shaft 141 is controlled to rotate, so that the perforated plate 142 rotates into the ferrous metal collection area. At this time, the electromagnet is de-energized, and the ferrous metals on the surface of the perforated plate 142 lose their magnetic attraction and fall freely to the lower part of the ferrous metal collection area.

[0023] In this embodiment, a power supply 143 is installed at the bottom of the perforated plate 142, and an elastic button 144 is provided at the lower end of the rotating shaft 141. The elastic button 144 is electrically connected to the power supply 143, and the power supply 143 is electrically connected to the electromagnet. The elastic button 144, the power supply 143, and the electromagnet form a series circuit. When the elastic button 144 is squeezed by an external force, the elastic button 144 closes, and the power supply 143 supplies power to the electromagnet. When the elastic button 144 is no longer squeezed by the external force, the elastic button 144 opens, and the electromagnet is de-energized.

[0024] In this embodiment, a support column 16 is fixedly installed at the bottom of the sorting cylinder 11. The lower end of the rotating shaft 141 is rotatably connected to the support column 16, and the upper end of the support column 16 is provided with an installation groove. The inner wall of the installation groove has a protrusion 161. The protrusion 161 is set in the non-magnetic area. When the orifice plate 142 is located inside the non-magnetic area, the protrusion 161 presses the elastic button 144. When the orifice plate 142 rotates to the ferrous metal collection area, the protrusion 161 separates from the elastic button 144, and the elastic button 144 is disconnected, thereby realizing the on and off power control of the electromagnet.

[0025] Furthermore, in this embodiment of the application, the sorting cylinder 11 is provided with an upper cover 12, and a rotary motor 13 is fixedly installed on the upper cover 12. The output end of the rotary motor 13 is fixedly connected to the rotating shaft 141, and the rotary motor 13 is used to drive the rotating shaft 141 to rotate.

[0026] Furthermore, in this embodiment, the upper cover 12 is provided with a feed inlet 121, which is connected to the non-magnetic area of ​​the sorting cylinder 11; the upper cover 12 is also provided with an air inlet 122, which is connected to the ferrous metal collection area of ​​the sorting cylinder 11. The air inlet 122 is used to connect to an air pump, through which gas is introduced into the ferrous metal collection area, and the gas is used to purge the perforated plate 142, causing the ferrous metal attached to the surface of the perforated plate 142 to fall off quickly; in addition, in In this embodiment, the side wall of the sorting cylinder 11 is provided with an opening, which corresponds to the ferrous metal collection area. A side door 111 is detachably installed in the opening, and an exhaust port 112 is provided on the side door 111. After the side door 111 is removed, the ferrous metal in the ferrous metal collection area can be taken out. The purpose of providing the exhaust port 112 is to discharge the gas generated by the air pump. In order to prevent the ferrous metal from being carried away by the gas, a filter screen can also be installed in the exhaust port 112. This is the prior art and will not be described in detail here.

[0027] In this embodiment, the second sorting mechanism 20 includes a housing mounted on a base 30, a conveyor belt 25 installed inside the housing, and a magnetic roller 26. The housing has a first discharge port 23 and a second discharge port 24 on the side away from the first sorting mechanism 10. The first discharge port 23 is located close to the conveyor belt 25, and a baffle plate 27 is provided inside the housing between the first discharge port 23 and the second discharge port 24. The magnetic roller 26 is rotatably mounted inside the housing. When the magnetic roller 26 rotates, it generates a high-frequency changing magnetic field. When non-ferrous conductive metals (copper, aluminum) pass through the magnetic field, eddy currents are generated. The eddy currents themselves generate a reverse magnetic field, which interacts with the magnetic field generated by the magnetic roller 26 to form a repulsive force, causing the non-ferrous conductive metals to bounce and separate and fall into the second discharge port 24, while the remaining fragments fall into the first discharge port 23.

[0028] Furthermore, in this embodiment of the application, a first drive motor 21 and a second drive motor 22 are installed on the outside of the housing. The first drive motor 21 is used to drive the conveyor belt 25, and the second drive motor 21 is used to drive the magnetic roller 26.

[0029] 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.

[0030] 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. A multifunctional fragment sorting device for recycling of waste CRT display screens, characterized in that, The system includes a first sorting mechanism (10) and a second sorting mechanism (20). The first sorting mechanism (10) is mounted on the second sorting mechanism (20), and the discharge side of the first sorting mechanism (10) is connected to the interior of the second sorting mechanism (20). The first sorting mechanism (10) includes a sorting cylinder (11) and a magnetic separator (14) disposed inside the sorting cylinder (11). The magnetic separator (14) includes a rotating shaft (141) and a plurality of perforated plates (14) mounted on the rotating shaft (141). 2) An electromagnet is provided inside the perforated plate (142); a first partition plate (15) and a second partition plate (17) are provided inside the sorting cylinder (11). The inner areas of the first partition plate (15) and the second partition plate (17) are ferrous metal collection areas, and the other areas of the sorting cylinder (11) are non-magnetic areas. The first partition plate (15) is located directly above the second partition plate (17), and a gap is left between the first partition plate (15) and the second partition plate (17) for the perforated plate (142) to pass through.

2. The multifunctional fragment sorting device for recycling waste CRT displays according to claim 1, characterized in that, A power supply (143) is installed at the bottom of the perforated plate (142), and an elastic button (144) is provided at the lower end of the rotating shaft (141). The elastic button (144) is electrically connected to the power supply (143), and the power supply (143) is electrically connected to the electromagnet.

3. The multifunctional fragment sorting device for recycling of waste CRT display screens according to claim 2, characterized in that, A support column (16) is fixedly installed at the bottom of the sorting cylinder (11). The lower end of the rotating shaft (141) is rotatably connected to the support column (16), and the upper end of the support column (16) is provided with an installation groove. The inner wall of the installation groove has a protrusion (161), which is set in a non-magnetic area.

4. The multifunctional fragment sorting device for recycling of waste CRT display screens according to claim 3, characterized in that, The sorting cylinder (11) is provided with a top cover (12), and a rotary motor (13) is fixedly installed on the top cover (12). The output end of the rotary motor (13) is fixedly connected to the rotating shaft (141).

5. The multifunctional fragment sorting device for recycling of waste CRT display screens according to claim 4, characterized in that, An air inlet (122) is also provided on the upper cover (12). The air inlet (122) is connected to the iron metal collection area of ​​the sorting cylinder (11). The air inlet (122) is used to connect an air pump. An opening is provided on the side wall of the sorting cylinder (11). The opening is set in the iron metal collection area. A side door (111) is detachably installed in the opening. An exhaust port (112) is provided on the side door (111).

6. The multifunctional fragment sorting apparatus for recycling of the waste CRT display screen according to claim 1, wherein The second sorting mechanism (20) includes a housing mounted on a base (30), a conveyor belt (25) installed inside the housing, and a magnetic roller (26) that generates a high-frequency changing magnetic field when rotating. The housing has a first discharge port (23) and a second discharge port (24) on the side away from the first sorting mechanism (10). A baffle plate (27) is provided inside the housing between the first discharge port (23) and the second discharge port (24).

7. The multifunctional fragment sorting device for recycling of used CRT display screens according to claim 6, characterized in that, The outer side of the housing is equipped with a first drive motor (21) for driving the conveyor belt (25) and a second drive motor (22) for driving the magnetic roller (26).

Images