A waste circuit board cracking device

Abstract

The present invention relates to the technical field of waste circuit board processing, and discloses a waste circuit board cracking device, comprising a cracking furnace for cracking the waste circuit boards; a carbon black collection pool for collecting carbon black formed after the circuit boards are cracked; a processing unit for crushing the carbon black and screening out magnetic metals in the carbon black; a screw conveyor, whose feeding end is located in the carbon black collection pool and whose discharging end is connected to the processing unit; the processing unit includes a crushing assembly, which includes a shell, two sorting tubes rotatably connected to the shell, a first guide plate arranged on the shell, and an adjusting part built into the sorting tube and connected to the shell, and a plurality of permanent magnets connected to the adjusting part; the device can sort ferromagnetic materials exceeding a predetermined weight by means of the two sorting tubes and the adjusting part located in the sorting tubes, so that the materials fall into a predetermined position.

Description

Technical Field

[0001] The invention relates to the technical field of waste circuit board processing, in particular to a waste circuit board cracking device. Background Art

[0002] Pyrolysis technology utilizes high temperature and high pressure to break down the plastic in waste circuit boards into small molecules. Simultaneously, chemical treatments are used to completely separate the metals from the plastics. This method not only effectively recovers the metal and plastic resources from waste circuit boards, but also avoids the secondary pollution associated with traditional treatment methods.

[0003] For example, Chinese patent application publication number CN109759218A discloses a system for recycling waste circuit boards, which includes a crushing device for crushing circuit boards, a magnetic separation device for separating ferromagnetic materials and non-magnetic materials, a separation device for separating resin materials and copper materials in non-magnetic materials, and a dust collector. The separation device includes a cyclone separator and an electrostatic air separator. The light outlet of the cyclone separator is connected to the air inlet of the dust collector, and the heavy outlet is connected to the electrostatic air separator. The dust collector also includes an air discharge port and a dust discharge port. The dust discharge port is provided with a primary resin powder collection portion.

[0004] In the above patent, although ferromagnetic materials can be collected and sorted, the existing magnetic separation devices mostly set multiple magnets in the sorting tube, and the magnets are distributed in a semicircular shape on the outer wall of the sorting tube. The falling ferromagnetic materials can be adsorbed by the set magnets to make them adhere to the sorting tube, and then as the sorting tube rotates, the ferromagnetic materials are located in the magnet-free area on the sorting tube. At this time, the ferromagnetic materials fall into the predetermined collection area under the driving force of their own gravity. Although a crushing device is provided in the carbon black collection pool, a large amount of ferromagnetic materials will still exist after being crushed by the crushing device. When the mass of the ferromagnetic materials is too large, the magnetic force generated by the magnet cannot make the ferromagnetic materials be located in the predetermined position, and the ferromagnetic materials will fall into the collection area of ​​non-magnetic materials under the driving force of their own gravity, resulting in the actual ferromagnetic material recovery amount being less than the predetermined ferromagnetic material recovery amount.

[0005] Therefore, how to sort and collect ferromagnetic materials is a problem that needs to be solved at present. Summary of the Invention

[0006] The present invention provides a waste circuit board cracking device to solve the above problems existing in the prior art.

[0007] A waste circuit board cracking device, comprising:

[0008] Cracking furnace, used for cracking waste circuit boards;

[0009] Carbon black collection tank, used to collect carbon black formed after the circuit board is cracked;

[0010] A processing unit for crushing carbon black and screening out magnetic metals in the carbon black;

[0011] A screw conveyor, whose feed end is located in the carbon black collection tank and whose discharge end is connected to the processing unit, is used to transport the carbon black to the processing unit;

[0012] The processing unit includes a crushing assembly, which includes a shell, two sorting tubes rotatably connected to the shell, a first guide plate provided on the shell, an adjustment portion built into the sorting tubes and connected to the shell, and a plurality of permanent magnets connected to the adjustment portion;

[0013] The adjusting part is used to adjust the distance between the permanent magnet and the inner wall of the separation tube so that the permanent magnet can absorb the magnetic metal in the carbon black;

[0014] One end of the sorting tube is provided with a first rotating mechanism, and one end of the regulating portion is provided with a second rotating mechanism;

[0015] The first rotating mechanism and the second rotating mechanism are both existing technologies, used to drive the sorting tube and the adjustment part to rotate; the distance between the feed end of the first guide plate and the outer wall of the first sorting tube is greater than the distance between its discharge end and the outer wall of the first sorting tube.

[0016] In a further embodiment, the adjustment portion includes a connecting shaft provided on the housing, a first connecting sleeve and a second connecting sleeve sleeved on the connecting shaft, a plurality of connecting rods for connecting the first connecting sleeve and the second connecting sleeve, and a driving member provided on the second connecting sleeve;

[0017] The permanent magnets on the same sorting tube are connected in sequence to form a C-shaped structure, wherein the diameter of the C-shaped structure is larger than the outer diameter of the second connecting sleeve and smaller than the inner diameter of the sorting tube;

[0018] The driving member is connected to the permanent magnet and is used to change the position of the permanent magnet in the sorting tube and make the permanent magnet move synchronously to adjust the distance between the permanent magnet and the inner wall of the sorting tube;

[0019] The distances between the permanent magnets in the two sorting tubes and the inner walls of the sorting tubes are different.

[0020] In a further embodiment, the driving member includes a plurality of mounting seats provided on the second connecting sleeve, an adjustment shaft provided on the mounting seats, an adjustment gear sleeved on the adjustment shaft, a universal joint for connecting adjacent adjustment shafts, and an adjustment rack meshing with the adjustment gear;

[0021] One of the universal joints can be replaced with a drive motor;

[0022] The first connecting sleeve and the second connecting sleeve are both provided with grooves for accommodating the adjustment rack, the inner wall of the groove is provided with a limiting groove, and the length direction of the adjustment rack is provided with a protrusion adapted to the limiting groove.

[0023] In a further embodiment, the sorting tube is divided into a first sorting tube and a second sorting tube according to the movement order of the carbon black in the processing unit, wherein the first sorting tube and the second sorting tube rotate in opposite directions, and the first sorting tube rotates in a counterclockwise direction;

[0024] The housing is further provided with a second guide plate and a third guide plate, and a predetermined distance exists between the second guide plate and the third guide plate and the outer wall of the second sorting tube;

[0025] There is a predetermined distance between the axes of the first sorting tube and the second sorting tube in the orthographic projection direction, so that the carbon black screened by the first sorting tube can fall into the second sorting tube;

[0026] The distance between the permanent magnet in the regulating part in the first sorting tube and the inner wall of the sorting tube is greater than the distance between the permanent magnet in the regulating part in the second sorting tube and the inner wall of the sorting tube.

[0027] In a further embodiment, the processing unit further comprises a crushing portion, the crushing portion comprising a first crushing plate and a plurality of fixing seats disposed in the housing, crushing elements disposed on the fixing seats, a transmission shaft for connecting the crushing elements, and a driving mechanism connected to one of the crushing elements;

[0028] The crushing member includes a transmission wheel rotatably connected to the fixed seat, a first connecting rod connected to the transmission wheel, a second connecting rod movably connected to the first connecting rod, and a second crushing plate movably connected to the second connecting rod;

[0029] The second crushing plate is movably connected to the fixing seat via a rotating shaft;

[0030] The driving mechanism includes a crushing motor connected to the housing, a driving wheel provided at the output end of the crushing motor, and a transmission belt for connecting the driving wheel and the transmission wheel;

[0031] The area between the first crushing plate and the second crushing plate is the crushing area of ​​carbon black.

[0032] In a further embodiment, the processing unit further comprises a support frame, a cooling assembly disposed on the support frame and connected to the screw conveyor, a transmission assembly connected to a discharge end of the cooling assembly, and at least two discharge bins connected to the crushing assembly;

[0033] The transmission component is used to transport the carbon black to the crushing component.

[0034] In a further embodiment, the cooling assembly includes a cooling box fixedly mounted on the support frame, a feeding pipe built into the cooling box, a spiral core shaft located in the feeding pipe, spiral blades provided on the spiral core shaft, a feeding motor connected to one end of the spiral core shaft and located outside the cooling box housing, and a silo built into the cooling box;

[0035] One end of the silo is connected to the discharge end of the screw conveyor, and the other end is connected to the feeding pipe;

[0036] The discharge end of the feeding pipe is also provided with a carbon black distribution plate.

[0037] In a further embodiment, the cooling box is provided with a first partition, a second partition, a water inlet pipe, and a water outlet pipe. According to the flow direction of the coolant in the cooling box, the first partition and the second partition can divide the cooling box into a first cooling area, a second cooling area, and a third cooling area. A first connecting pipe and a second connecting pipe are provided in the second cooling area for connecting the first cooling area and the third cooling area, and a connecting pipe is provided on the second partition and is located in the first cooling area.

[0038] The distance between the first connecting pipe and the feeding pipe is greater than the distance between the second connecting pipe and the feeding pipe;

[0039] The water inlet end of the second connecting pipe is located in the overlapping area of ​​the connecting pipe and the second partition;

[0040] The silo is located in the third cooling area, the connecting pipe is connected to the water inlet pipe, and the water outlet pipe is connected to the first cooling area.

[0041] In a further embodiment, the transmission assembly includes a mounting frame provided on the support frame, an adjustment mechanism provided on the mounting frame, a connecting frame connected to the adjustment mechanism, and an inclined plate provided on the connecting frame and forming a predetermined angle with respect to the height direction of the connecting frame;

[0042] The inclined plate is used to receive the carbon black falling from the carbon black distribution plate;

[0043] The adjustment mechanism includes a transmission member provided on the mounting frame, two transmission blocks connected to the transmission member, a movable frame connected to the transmission blocks, a slider provided on the movable frame, and a slide rail provided on the mounting frame and slidably connected to the slider;

[0044] The connecting frame is connected to the movable frame.

[0045] In a further embodiment, the transmission member includes three supports provided on the mounting frame, two transmission screws for connecting adjacent supports, and an adjustment motor provided on the mounting frame and connected to one of the transmission screws;

[0046] Wherein, a driving gear and a driven gear are respectively provided at the proximal ends of the two transmission screws, and the driving gear is meshed with the driven gear;

[0047] The transmission block is sleeved on the transmission screw rod.

[0048] Beneficial effect: The present invention discloses a waste circuit board cracking device. In order to be able to sort and collect ferromagnetic materials, the device is provided with at least two sorting tubes, an adjusting part built into the sorting tubes, and a permanent magnet provided on the adjusting part. Therefore, when sorting, the position of the permanent magnet in the second sorting tube can be adjusted so that the distance between the permanent magnet in the second sorting tube and the inner wall of the second sorting tube is smaller than the distance between the permanent magnet in the first sorting tube and the inner wall of the first sorting tube, thereby increasing its magnetic force. Therefore, when the mass of the ferromagnetic material falling into the crushing assembly is greater than the preset mass of the ferromagnetic material, at this time, due to the first guide plate, the first sorting tube and the second sorting tube, the distance between the permanent magnet in the second sorting tube and the inner wall of the second sorting tube is smaller than the distance between the permanent magnet in the first sorting tube and the inner wall of the first sorting tube, thereby increasing its magnetic force. There are overlapping areas between the figures corresponding to the orthographic projections of the tubes. Therefore, the ferromagnetic material flowing out from the first guide plate or the ferromagnetic material falling from the first sorting tube because the mass of the ferromagnetic material exceeds the preset mass will contact the second sorting tube. At this time, the permanent magnet located in the second sorting tube can adsorb the ferromagnetic material to complete the sorting of the ferromagnetic material. At the same time, in order to avoid carbon black adhering to the surface of the ferromagnetic material, thereby reducing the attraction of the permanent magnet to the ferromagnetic material, so that the ferromagnetic material cannot be removed from the predetermined position, the device is also provided with a crushing part, which is located at the discharge end of the first guide plate. It can perform secondary processing on the carbon black to avoid the ferromagnetic material being wrapped in the carbon black, thereby completing the sorting of the ferromagnetic material. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a schematic diagram of a waste circuit board cracking device;

[0050] Figure 2 is a schematic diagram of a cooling assembly of the present invention;

[0051] Figure 3 is a perspective view of the transmission assembly of the present invention;

[0052] Figure 4 It is a schematic structural diagram of the regulating mechanism of the present invention;

[0053] Figure 5 It is a schematic diagram of the structure of the crushing component of the present invention;

[0054] Figure 6 It is a schematic structural diagram of the regulating portion of the present invention;

[0055] Figure 7 is a schematic diagram of a permanent magnet of the present invention;

[0056] Figure 8 It is a schematic structural diagram of the crushing unit of the present invention.

[0057] Figure 1: pyrolysis furnace; 2: carbon black collection tank; 3: screw conveyor; 4: cooling assembly; 41: cooling box; 42: water inlet pipe; 43: hopper; 44: feeding motor; 45: feeding pipe; 46: spiral mandrel; 47: spiral blade; 48: first partition; 49: second partition; 410: first connecting pipe; 411: second connecting pipe; 412: connecting pipe; 413: water outlet pipe; 5: transmission assembly; 51: mounting frame; 52: adjustment mechanism; 521: adjustment motor; 522: slide rail; 523: transmission block; 524: driving gear; 525: driven gear; 526: transmission screw; 527: moving frame; 528: slider; 53: connecting frame; 54: tilting plate; 6: , crushing assembly; 61, shell; 62, adjusting part; 621, connecting shaft; 622, first connecting sleeve; 623, connecting rod; 624, second connecting sleeve; 625, mounting seat; 626, adjusting shaft; 627, universal joint; 628, adjusting gear; 629, driving motor; 6210, adjusting rack; 63, first guide plate; 64, second guide plate; 65, third guide plate; 66, crushing part; 661, crushing motor; 662, transmission belt; 663, transmission wheel; 664, first crushing plate; 665, second crushing plate; 666, first connecting rod; 667, second connecting rod; 668, rotating shaft; 669, fixing seat; 67, permanent magnet; 68, sorting tube; 7, supporting frame. DETAILED DESCRIPTION

[0058] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0059] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0060] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0061] The present invention discloses a waste circuit board cracking device, referring to Figures 1-8 ,include:

[0062] The cracking furnace 1 cracks the waste circuit boards; the carbon black collecting pool 2 collects the carbon black formed after the circuit boards are cracked; the processing unit crushes the carbon black and screens out the magnetic metal in the carbon black; the feeding end of the screw conveyor 3 is located in the carbon black collecting pool 2, and the discharging end is connected to the processing unit to transport the carbon black to the processing unit; the processing unit includes a crushing assembly 6, which includes a shell 61, two sorting pipes 68 rotatably connected to the shell 61, a first guide plate 63 provided on the shell 61, and a regulating element built into the sorting pipe 68 and connected to the shell 61. The node portion 62 and the plurality of permanent magnets 67 connected to the adjusting portion 62; the adjusting portion 62 is used to adjust the distance between the permanent magnet 67 and the inner wall of the sorting tube 68, so that the permanent magnet 67 adsorbs the magnetic metal in the carbon black; through the setting of the adjusting portion 62, the position of the permanent magnet 67 located in the second sorting tube can be adjusted, so that the second sorting tube can adsorb the ferromagnetic material with a larger mass, and through the setting of the first rotating mechanism, the second sorting tube is rotated, driving the ferromagnetic material to rotate, so that it can be transported from the channel between the second sorting tube and the third guide plate 65 to a predetermined position.

[0063] The regulating portion 62 includes a connecting shaft 621 provided on the housing 61, a first connecting sleeve 622 and a second connecting sleeve 624 sleeved on the connecting shaft 621, a plurality of connecting rods 623 for connecting the first connecting sleeve 622 and the second connecting sleeve 624, and a driving member provided on the second connecting sleeve 624; wherein the permanent magnets 67 located on the same sorting tube 68 are connected in sequence to form a C-shaped structure, the diameter of the C-shaped structure is larger than the outer diameter of the second connecting sleeve 624 and smaller than the inner diameter of the sorting tube 68; the driving member is connected to the permanent magnet 67 for The position of the permanent magnet 67 in the sorting tube 68 is changed, and the permanent magnet 67 is moved synchronously to adjust the distance between the permanent magnet 67 and the inner wall of the sorting tube 68; the distances between the permanent magnets 67 located in the two sorting tubes 68 and the inner wall of the sorting tube 68 are different; the permanent magnet 67 is set to form a magnetic area and a non-magnetic area on the sorting tube 68, and by rotating the sorting tube 68, the ferromagnetic material attached to the sorting tube 68 can be moved to the non-magnetic area, and then the ferromagnetic material can fall into the predetermined collection area driven by its own gravity, thereby completing the collection of the ferromagnetic material.

[0064] The driving member includes a plurality of mounting seats 625 arranged on the second connecting sleeve 624, an adjusting shaft 626 arranged on the mounting seat 625, an adjusting gear 628 sleeved on the adjusting shaft 626, a universal joint 627 for connecting adjacent adjusting shafts 626, and an adjusting rack 6210 meshing with the adjusting gear 628; one of the universal joints 627 can be replaced by a driving motor 629; a groove for placing the adjusting rack 6210 is provided on the first connecting sleeve 622 and the second connecting sleeve 624, the inner wall of the groove is provided with a limiting groove, and the adjusting rack 6210 is provided with a protrusion adapted to the limiting groove in the length direction, and the mounting seat 625 is a U-shaped structure; when it is necessary to adjust the position of the permanent magnet 67, the driving member 625 is provided with a plurality of mounting seats 625 on the second connecting sleeve 624, The driving motor 629 starts to work, and the moving driving motor 629 can drive the adjusting shaft 626 connected to it to rotate, and the moving adjusting shaft 626 can drive the universal joint 627 connected to it to rotate, thereby driving another adjusting shaft 626 to rotate, and the rotating adjusting shaft 626 can drive the adjusting gear 628 to rotate, thereby driving the adjusting rack 6210 to move, so that the permanent magnet 67 can be extended or retracted synchronously, so that the shortest distance between the permanent magnet 67 and the inner wall of the sorting tube 68 is the same, so that it can adsorb the ferromagnetic material; at the same time, by adjusting the distance between the permanent magnet 67 and the inner wall of the sorting tube 68, the magnetic force of the permanent magnet 67 on the ferromagnetic material is changed, so that the ferromagnetic material can be adsorbed on the sorting tube 68.

[0065] The sorting tube 68 is divided into a first sorting tube and a second sorting tube according to the movement order of the carbon black in the processing unit, wherein the rotation directions of the first sorting tube and the second sorting tube are opposite, and the first sorting tube rotates in a counterclockwise direction; the shell 61 is also provided with a second guide plate 64 and a third guide plate 65, and there is a predetermined distance between the second guide plate 64 and the third guide plate 65 and the outer wall of the second sorting tube; there is a predetermined distance between the axis of the first sorting tube and the second sorting tube in the positive projection direction, so that the carbon black screened by the first sorting tube can fall into the second sorting tube; wherein the distance between the permanent magnet 67 in the regulating part 62 in the first sorting tube and the inner wall of the sorting tube 68 is greater than the distance between the permanent magnet 67 in the regulating part 62 in the second sorting tube and the inner wall of the sorting tube 68; wherein the channel formed between the second guide plate 64 and the outer wall of the second sorting tube is used to pass non-magnetic metal and Fixed impurities, the channel formed by the outer wall of the second sorting tube and the third guide plate 65 facing one side of the second sorting tube is used to pass magnetic metals exceeding a predetermined mass, and plays a certain role in limiting the damage of the shell 61 caused by excessive centrifugal force to the magnetic metal, and the third guide plate 65 is away from the channel formed between the outer wall of the second sorting tube and the shell 61, and is used to pass magnetic metals of a predetermined mass; wherein the output side of the third guide plate 65 may also be provided with a partition plate, which can screen magnetic metals exceeding a predetermined mass and magnetic metals of a predetermined mass; by increasing the distance between the permanent magnet 67 in the second sorting tube and the inner wall of the sorting tube 68, and allowing the carbon black to fall directly onto the second sorting tube, it can avoid the failure of the adsorption work due to the distance between the ferromagnetic material and the second sorting tube being too large or the magnetic force of the permanent magnet 67 being too small, and the adsorption work of ferromagnetic parts exceeding the predetermined mass can be completed.

[0066] In a further embodiment, the above-mentioned device can be used to adsorb ferromagnetic materials with larger mass. However, during the cracking process of the circuit board, more carbon black will be produced, and the carbon black may wrap the ferromagnetic material. Although the crushing equipment set in the carbon black collection pool 2 can perform preliminary crushing of the carbon black, there will still be particles with larger diameters transported to the crushing component 6. First, the magnetic force of the permanent magnet 67 on the ferromagnetic material wrapped by carbon black will be reduced. Secondly, the mass of the ferromagnetic material attached with carbon black will increase, resulting in the permanent magnet 67 located in the first sorting tube being difficult to adsorb this type of ferromagnetic material, so that this type of ferromagnetic material falls into the area where the impurities are located, thereby causing a waste of resources.

[0067] In order to solve the above problems, the present device is provided with a processing unit, which further includes a crushing part 66, the crushing part 66 includes a first crushing plate 664 and a plurality of fixed seats 669 arranged in the housing 61, a crushing piece arranged on the fixed seat 669, a transmission shaft for connecting the crushing piece, and a driving mechanism connected to one of the crushing pieces; the crushing piece includes a transmission wheel 663 rotatably connected to the fixed seat 669, a first connecting rod 666 connected to the transmission wheel 663, and a second connecting rod 667 movably connected to the first connecting rod 666. And a second crushing plate 665 movably connected to the second connecting rod 667; the second crushing plate 665 is movably connected to the fixed seat 669 through a rotating shaft 668; the driving mechanism includes a crushing motor 661 connected to the housing 61, a driving wheel provided at the output end of the crushing motor 661, and a transmission belt 662 for connecting the driving wheel and the transmission wheel 663; the area between the first crushing plate 664 and the second crushing plate 665 is the crushing area of ​​the carbon black; the crushing motor 661 can drive the second crushing plate 665 to reciprocate, thereby The carbon black in the area is crushed and adsorbed by the permanent magnet 67; the transmission wheel 663 is sleeved on the transmission shaft; the ferromagnetic material attached with carbon black falls into the crushing part 66 from the discharge end of the first guide plate 63 due to the influence of gravity, and then the crushing motor 661 starts to work, and the moving crushing motor 661 can drive the driving wheel to rotate, and the transmission belt 662 can drive the transmission wheel 663 to rotate, and the moving transmission wheel 663 can drive the transmission shaft to move, thereby driving the transmission wheels 663 in other crushing parts to rotate, and the crushing motor 661 starts to work. The moving transmission wheel 663 can drive the first connecting rod 666 to move, the moving first connecting rod 666 can drive the second connecting rod 667 to move, and then the moving second connecting rod 667 can make the second crushing plate 665 rotate along the rotating shaft 668, so that the carbon black passing between the first crushing plate 664 and the second crushing plate 665 can be crushed, thereby crushing the carbon black wrapped on the ferromagnetic material, reducing the mass of the wrapped carbon black, and enabling the permanent magnet 67 to adsorb the ferromagnetic material, and then as the sorting tube 68 rotates, the ferromagnetic material can be sorted.

[0068] The processing unit also includes a support frame 7, a cooling component 4 arranged on the support frame 7 and connected to the screw conveyor 3, a transmission component 5 connected to the discharge end of the cooling component 4, and at least two silos 43 connected to the crushing component 6; the transmission component 5 is used to transport the carbon black to the crushing component 6; the cooling component 4 includes a cooling box 41 fixedly mounted on the support frame 7, a feeding pipe 45 built into the cooling box 41, a spiral core shaft 46 located in the feeding pipe 45, a spiral blade 47 provided on the spiral core shaft 46, a feeding motor 44 connected to one end of the spiral core shaft 46 and located outside the cooling box 41 shell, and a silo 43 built into the cooling box 41; one end of the silo 43 is connected to the discharge end of the screw conveyor 3, and the other end is communicated with the feeding pipe 45; the discharge end of the feeding pipe 45 is also provided with a carbon black distribution plate; when the cracking work is completed After that, carbon black will be produced after the circuit board is cracked, and by rotating the cracking furnace 1, the carbon black can fall from the discharge end of the cracking furnace 1 into the carbon black collecting pool 2, and then the carbon black is preliminarily crushed by the crushing equipment arranged in the carbon black collecting pool 2, and then the screw conveyor 3 starts to work, so that the carbon black can move from the carbon black collecting pool 2 to the hopper 43 and fall into the feeding pipe 45, and then the feeding motor 44 starts to work, and the moving feeding motor 44 can drive the spiral core shaft 46 connected to it to start rotating, and then the moving spiral core shaft 46 can drive the spiral blade 47 to move, driving the carbon black to move in the length direction of the feeding pipe 45, so that the carbon black can fall onto the carbon black distribution plate, and then the carbon black falls onto the inclined plate 54 through the carbon black distribution plate; through the cooperation of the set spiral core shaft 46 and the spiral blade 47, the transportation of carbon black can be completed, so that it can be transported to the transmission component 5.

[0069] In a further embodiment, when the circuit board is located in the cracking furnace 1, the circuit board is placed in an oxygen-deficient or oxygen-free state and the cracking furnace 1 is heated to form carbon black. During the heating process, the temperature of the carbon black will be too high, and during the crushing or processing process, the high-temperature carbon black will splash, thereby scalding the staff.

[0070] In order to solve the above problems, a cooling box 41 is provided in the present device, and a first partition 48, a second partition 49, a water inlet pipe 42 and a water outlet pipe 413 are provided in the cooling box 41. According to the flow direction of the coolant in the cooling box 41, the first partition 48 and the second partition 49 can divide the cooling box 41 into a first cooling area, a second cooling area and a third cooling area. A first connecting pipe 410 and a second connecting pipe 411 are provided in the second cooling area for connecting the first cooling area and the third cooling area, and a connecting pipe 412 is provided on the second partition 49 and located in the first cooling area; wherein the distance between the first connecting pipe 410 and the feeding pipe 45 is greater than the distance between the second connecting pipe 411 and the feeding pipe 45; the water inlet end of the second connecting pipe 411 is located in the overlapping area of ​​the connecting pipe 412 and the second partition 49; the silo 43 is located in the third cooling area, the connecting pipe 412 is connected to the water inlet pipe 42, and the outlet The water pipe 413 is connected to the first cooling area; the water outlet pipe 413 is located at the top of the cooling box 41, and the water inlet pipe 42 is located between the feeding pipe 45 and the water outlet pipe 413, and then the coolant is transported into the water inlet pipe 42 so that the coolant can be poured on the feeding pipe 45; before using the screw conveyor 3 to transport the carbon black to the feeding pipe 45, the coolant is injected into the connecting pipe 412 through the water inlet pipe 42. At this time, the coolant can contact the feeding pipe 45, and then flow along the second connecting pipe 411 to the third cooling area, and then as the coolant continues to be injected, the coolant level in the area surrounded by the third cooling area and the cooling box 41, the connecting pipe 412 and the second partition 49 rises, and the coolant flows in the first cooling area, the second cooling area and the third cooling area, and at the same time the silo 43 is located in the cooling box 41, so that the carbon black can be cooled, thereby reducing the temperature of the carbon black and preventing the high-temperature carbon black from scalding the operator.

[0071] The transmission assembly 5 includes a mounting frame 51 arranged on the support frame 7, an adjusting mechanism 52 arranged on the mounting frame 51, a connecting frame 53 connected to the adjusting mechanism 52, and an inclined plate 54 arranged on the connecting frame 53 and at a predetermined angle to the height direction of the connecting frame 53; the inclined plate 54 is used to receive the carbon black falling from the carbon black distribution plate; the adjusting mechanism 52 includes a transmission member arranged on the mounting frame 51, two transmission blocks 523 connected to the transmission member, a moving frame 527 connected to the transmission block 523, a slider 528 arranged on the moving frame 527, and a slide rail 522 arranged on the mounting frame 51 and slidably connected to the slider 528; the connecting frame 53 is connected to the moving frame 527; the transmission member includes three supports arranged on the mounting frame 51, two transmission screw rods 526 for connecting adjacent supports, and a transmission screw rod 526 arranged on the mounting frame 51 and connected to the moving frame The gear 524 is engaged with the driven gear 525 and the gear 526 is engaged with the driven gear 525. The gear 524 is engaged with the driven gear 525 and the gear 526 is engaged with the driven gear 525. The gear 523 is sleeved on the gear 526. Before the circuit board is cracked, the adjusting motor 521 starts to work, and the moving adjusting motor 521 can drive the transmission screw 526 connected to it to rotate, and then the meshing driving gear 524 and the driven gear 525 can drive the other transmission screw 526 to rotate. The moving transmission screw 526 can drive the transmission block 523 to move, adjust the position of the transmission block 523 in the length direction of the transmission screw 526, and then adjust the position of the movable frame 527 on the mounting frame 51, thereby adjusting the position of the inclined plate 54, so that the carbon black can fall from the carbon black distribution plate to the inclined plate 54, ensuring the smooth progress of the carbon black transmission work.

[0072] In a further embodiment, the device also includes a first rotating mechanism and a second rotating mechanism. The first rotating mechanism can drive the sorting tube 68 to rotate, and at the same time cooperate with the permanent magnet 67 to enable the ferromagnetic material to be adsorbed on the sorting tube 68. As the first rotating mechanism rotates, the ferromagnetic material can be driven to rotate, so that the ferromagnetic material moves from the magnetic attraction area to the non-magnetic attraction area. The ferromagnetic material falls to a predetermined position under the influence of its own gravity. In this process, the screening of the ferromagnetic material can be completed. However, when the mass of the ferromagnetic material is too small, although the ferromagnetic material is in the non-magnetic attraction area, the magnetic force provided to it by the permanent magnet 67 in the magnetic attraction area is greater than its own gravity, which will cause it to adhere to the sorting tube 68. At this time, the distance between the permanent magnet 67 and the inner wall of the sorting tube 68 can be adjusted by driving the motor 629, so that the permanent magnet 67 is away from the ferromagnetic material, thereby reducing the magnetic force of the permanent magnet 67 on the ferromagnetic material, so that the ferromagnetic material can fall into the predetermined collection area, completing the collection of the ferromagnetic material.

[0073] Working principle description: Before the circuit board is cracked, the position of the permanent magnet 67 needs to be adjusted. At this time, the drive motor 629 starts to work. The moving drive motor 629 can drive the adjusting shaft 626 connected to it to rotate, and then the moving adjusting shaft 626 can drive the universal joint 627 connected to it to rotate, thereby driving another adjusting shaft 626 to rotate, and the rotating adjusting shaft 626 can drive the adjusting gear 628 to rotate, thereby driving the adjusting rack 6210 to move, so that the permanent magnet 67 can be extended or retracted synchronously, so that the shortest distance between the permanent magnet 67 and the inner wall of the sorting tube 68 is the same, so that it can adsorb the ferromagnetic material; at the same time, by adjusting the permanent magnet 67 to the sorting tube 68, the permanent magnet 67 can be moved to the inner wall of the sorting tube 68. The distance between the inner walls of the tube 68 changes the magnetic force of the permanent magnet 67 on the ferromagnetic material, so that the ferromagnetic material can be adsorbed on the sorting tube 68; at the same time, it is necessary to make the adjustment motor 521 work before cracking, and the moving adjustment motor 521 can drive the transmission screw 526 connected thereto to rotate, and then through the meshing driving gear 524 and the driven gear 525, it can drive another transmission screw 526 to rotate, and the moving transmission screw 526 can drive the transmission block 523 to move, and the position of the regulator in the length direction of the transmission screw 526, and then adjust the position of the movable frame 527 on the mounting frame 51, thereby adjusting the position of the inclined plate 54, so that the carbon black can fall from the carbon black distribution plate onto the inclined plate 54, Ensure the smooth progress of carbon black transmission; before using the screw conveyor 3 to transport the carbon black to the feeding pipe 45, inject coolant into the connecting pipe 412 through the water inlet pipe 42, and then the coolant can contact the feeding pipe 45, and then flow along the second connecting pipe 411 to the third cooling area, and then as the coolant continues to be injected, the coolant level in the area surrounded by the third cooling area and the cooling box 41, the connecting pipe 412 and the second partition 49 rises, and the coolant flows in the first cooling area, the second cooling area and the third cooling area, while the silo 43 is located in the cooling box 41, which can cool the carbon black, thereby reducing the temperature of the carbon black; then the operator can fill the waste circuit board into the cracking furnace 1, and then The circuit boards in the cracking furnace 1 are placed in an oxygen-free environment and the cracking furnace 1 is heated. The carbon black generated by the cracked circuit boards is collected in the carbon black collection tank 2, then crushed by a crushing device provided in the carbon black collection tank 2, and transported to the cooling assembly 4 by the screw conveyor 3. When the carbon black falls into the feeding pipe 45 through the hopper 43, the feeding motor 44 starts to work. The moving feeding motor 44 can drive the spiral core shaft 46 connected thereto to start rotating. The moving spiral core shaft 46 can then drive the spiral blade 47 to move, driving the carbon black to move in the length direction of the feeding pipe 45, so that the carbon black can fall onto the carbon black distribution plate. The carbon black then falls onto the inclined plate 54 through the carbon black distribution plate.Through the cooperation of the spiral core shaft 46 and the spiral blades 47, the carbon black can be transported to the transmission component 5; then the carbon black can be transported to the shell 61 through the inclined plate 54 in the transport component, and then the permanent magnet 67 can form a magnetic area and a non-magnetic area on the sorting tube 68, and by rotating the sorting tube 68, the ferromagnetic material attached to the sorting tube 68 can move to the non-magnetic area, and then the ferromagnetic material can fall into the predetermined collection area under the driving force of its own gravity, completing the collection of the ferromagnetic material; and when the ferromagnetic material is wrapped by the carbon black, the ferromagnetic material attached to the carbon black falls from the discharge end of the first guide plate 63 into the crushing part 66 due to the influence of gravity, and then the crushing motor 661 starts to work, and the moving crushing motor 661 can drive the drive wheel to The transmission belt 662 can drive the transmission wheel 663 to rotate. The moving transmission wheel 663 can drive the transmission shaft to move, thereby driving the transmission wheels 663 in other crushing parts to rotate. The moving transmission wheel 663 can drive the first connecting rod 666 to move. The moving first connecting rod 666 can drive the second connecting rod 667 to move. The moving second connecting rod 667 can then rotate the second crushing plate 665 along the rotating shaft 668, thereby crushing the carbon black passing between the first crushing plate 664 and the second crushing plate 665. This can crush the carbon black wrapped around the ferromagnetic material, reducing the weight of the wrapped carbon black, allowing the permanent magnet 67 to attract the ferromagnetic material. Then, as the sorting tube 68 rotates, the ferromagnetic material can be sorted.

[0074] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A waste circuit board cracking device, characterized in that: include: A cracking furnace (1) is used for cracking waste circuit boards; A carbon black collection tank (2) is used to collect the carbon black formed after the circuit board is cracked; A processing unit for crushing carbon black and screening out magnetic metals in the carbon black; A screw conveyor (3), the feed end of which is located in the carbon black collection tank (2) and the discharge end of which is connected to the processing unit, is used to convey the carbon black to the processing unit; The processing unit includes a crushing assembly (6), the crushing assembly (6) includes a shell (61), two sorting tubes (68) rotatably connected to the shell (61), a first guide plate (63) arranged on the shell (61), and an adjustment portion (62) built into the sorting tube (68) and connected to the shell (61), and a plurality of permanent magnets (67) connected to the adjustment portion (62); The adjusting portion (62) is used to adjust the distance between the permanent magnet (67) and the inner wall of the separation tube (68), so that the permanent magnet (67) absorbs the magnetic metal in the carbon black; The adjusting portion (62) includes a connecting shaft (621) provided on the housing (61), a first connecting sleeve (622) and a second connecting sleeve (624) sleeved on the connecting shaft (621), and a driving member provided on the second connecting sleeve (624); The driving member includes a plurality of mounting seats (625) arranged on the second connecting sleeve (624), an adjusting shaft (626) arranged on the mounting seat (625), an adjusting gear (628) sleeved on the adjusting shaft (626), a universal joint (627) for connecting adjacent adjusting shafts (626), and an adjusting rack (6210) meshing with the adjusting gear (628); One of the universal joints (627) can be replaced with a drive motor (629); The first connecting sleeve (622) and the second connecting sleeve (624) are both provided with grooves for accommodating the adjustment rack (6210), the inner walls of the grooves are provided with limiting grooves, and the adjustment rack (6210) is provided with protrusions in the length direction thereof that are adapted to the limiting grooves; The sorting tube (68) is divided into a first sorting tube and a second sorting tube according to the movement order of the carbon black in the processing unit, wherein the first sorting tube and the second sorting tube rotate in opposite directions, and the first sorting tube rotates in a counterclockwise direction; The housing (61) is further provided with a second guide plate (64) and a third guide plate (65), and a predetermined distance exists between the second guide plate (64) and the third guide plate (65) and the outer wall of the second sorting tube; There is a predetermined distance between the axes of the first sorting tube and the second sorting tube in the orthographic projection direction, so that the carbon black screened by the first sorting tube can fall into the second sorting tube; The distance between the permanent magnet (67) in the regulating portion (62) in the first sorting tube and the inner wall of the sorting tube (68) is greater than the distance between the permanent magnet (67) in the regulating portion (62) in the second sorting tube and the inner wall of the sorting tube (68); the regulating portion (62) further includes a plurality of connecting rods (623) for connecting the first connecting sleeve (622) and the second connecting sleeve (624); The permanent magnets (67) located on the same sorting tube (68) are sequentially connected to form a C-shaped structure, wherein the diameter of the C-shaped structure is larger than the outer diameter of the second connecting sleeve (624) and smaller than the inner diameter of the sorting tube (68); The driving member is connected to the permanent magnet (67) and is used to change the position of the permanent magnet (67) in the sorting tube (68), and to make the permanent magnet (67) move synchronously, thereby adjusting the distance between the permanent magnet (67) and the inner wall of the sorting tube (68); The distances between the permanent magnets (67) in the two sorting tubes (68) and the inner walls of the sorting tubes (68) are different.

2. The waste circuit board cracking device according to claim 1, characterized in that: The processing unit further comprises a crushing portion (66), the crushing portion (66) comprising a first crushing plate (664) and a plurality of fixing seats (669) arranged in the housing (61), crushing pieces arranged on the fixing seats (669), a transmission shaft for connecting the crushing pieces, and a driving mechanism connected to one of the crushing pieces; The crushing member includes a transmission wheel (663) rotatably connected to the fixed seat (669), a first connecting rod (666) connected to the transmission wheel (663), a second connecting rod (667) movably connected to the first connecting rod (666), and a second crushing plate (665) movably connected to the second connecting rod (667); The second crushing plate (665) is movably connected to the fixing seat (669) via a rotating shaft (668); The driving mechanism comprises a crushing motor (661) connected to the housing (61), a driving wheel provided at the output end of the crushing motor (661), and a transmission belt (662) for connecting the driving wheel and a transmission wheel (663); The area between the first crushing plate (664) and the second crushing plate (665) is the carbon black crushing area.

3. The waste circuit board cracking device according to claim 2, characterized in that: The processing unit further comprises a support frame (7), a cooling assembly (4) disposed on the support frame (7) and connected to the screw conveyor (3), a transmission assembly (5) connected to a discharge end of the cooling assembly (4), and at least two silos (43) connected to the crushing assembly (6); The transmission component (5) is used to transport the carbon black to the crushing component (6).

4. The waste circuit board cracking device according to claim 3, characterized in that: The cooling assembly (4) comprises a cooling box (41) fixedly mounted on the support frame (7), a feeding pipe (45) built into the cooling box (41), a spiral core shaft (46) located in the feeding pipe (45), a spiral blade (47) arranged on the spiral core shaft (46), a feeding motor (44) connected to one end of the spiral core shaft (46) and located outside the cooling box (41) housing, and a silo (43) built into the cooling box (41); One end of the silo (43) is connected to the discharge end of the screw conveyor (3), and the other end is connected to the feeding pipe (45); The discharge end of the feeding pipe (45) is also provided with a carbon black distribution plate.

5. The waste circuit board cracking device according to claim 4, characterized in that: The cooling box (41) is provided with a first partition (48), a second partition (49), a water inlet pipe (42) and a water outlet pipe (413); according to the flow direction of the coolant in the cooling box (41), the first partition (48) and the second partition (49) can divide the cooling box (41) into a first cooling area, a second cooling area and a third cooling area; a first connecting pipe (410) and a second connecting pipe (411) are provided in the second cooling area for connecting the first cooling area and the third cooling area; and a connecting pipe (412) is provided on the second partition (49) and located in the first cooling area; The distance between the first connecting tube (410) and the feeding tube (45) is greater than the distance between the second connecting tube (411) and the feeding tube (45); The water inlet end of the second connecting pipe (411) is located in the overlapping area between the connecting pipe (412) and the second partition plate (49); The silo (43) is located in the third cooling area, the connecting pipe (412) is connected to the water inlet pipe (42), and the water outlet pipe (413) is connected to the first cooling area.

6. The waste circuit board cracking device according to claim 5, characterized in that: The transmission assembly (5) comprises a mounting frame (51) arranged on the support frame (7), an adjustment mechanism (52) arranged on the mounting frame (51), a connecting frame (53) connected to the adjustment mechanism (52), and an inclined plate (54) arranged on the connecting frame (53) and forming a predetermined angle with respect to the height direction of the connecting frame (53); The inclined plate (54) is used to receive the carbon black falling from the carbon black distribution plate; The adjustment mechanism (52) includes a transmission member provided on the mounting frame (51), two transmission blocks (523) connected to the transmission member, a movable frame (527) connected to the transmission blocks (523), a slider (528) provided on the movable frame (527), and a slide rail (522) provided on the mounting frame (51) and slidably connected to the slider (528); The connecting frame (53) is connected to the movable frame (527).

7. The waste circuit board cracking device according to claim 6, characterized in that: The transmission member comprises three supports arranged on the mounting frame (51), two transmission screws (526) for connecting adjacent supports, and an adjustment motor (521) arranged on the mounting frame (51) and connected to one of the transmission screws (526); The two transmission screw rods (526) are provided with a driving gear (524) and a driven gear (525) at adjacent ends thereof, and the driving gear (524) and the driven gear (525) are meshed with each other; The transmission block (523) is sleeved on the transmission screw rod (526).

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