Integrated copper rice machine and processing and screening process thereof

Abstract

The application relates to an integrated copper granulator and a processing and screening process thereof. The copper granulator comprises a bottom plate, a copper granule screening device arranged on the bottom plate, a feeding hopper, a crushing device, an air extractor one, and an electrostatic screening device. An air inlet end of the air extractor one is provided with a material dropping cylinder. A side wall of the material dropping cylinder is communicated with the collecting hopper through a feeding pipe. The mixture outlet hopper is communicated with the collecting hopper through a spiral feeder two. The electrostatic screening device is arranged to further screen the waste, the corresponding materials are collected from the copper granule outlet hopper and the rubber outlet hopper, and the screening rate of copper is improved. The waste discharged from the mixture outlet hopper is returned to the collecting hopper to be recycled, so that the screening rate is further improved, waste is reduced, and the yield of copper is improved. Dust in the feeding hopper, the material dropping cylinder and the copper granule screening device is collected through a reasonable air flow channel layout and is sent to a dust remover for centralized dust removal, so that air pollution is avoided. Through reasonable structure layout and pipeline arrangement, the structure is compact and integrated.

Description

Technical Field

[0001] This application relates to the field of copper granulator technology, and in particular to an integrated copper granulator and its processing and screening technology. Background Technology

[0002] A copper wire granulator is a machine used to crush waste copper wire and separate copper from plastic. Because the separated copper resembles rice grains, it is called a copper wire granulator. Copper wire granulators are a type of environmentally friendly machinery.

[0003] Patent application CN113145452A discloses a copper granulator, which includes a frame, a crushing device, and a vibrating air separation device. The vibrating air separation device is located below the crushing device and includes a vibration mechanism, an air supply mechanism, and a suction mechanism. The vibration mechanism includes an inclined vibrating frame and an air collecting hood covering the bottom of the vibrating frame. A screen is installed on the vibrating frame. The air supply mechanism is connected to the air collecting hood. The suction mechanism is located at the lower end of the vibrating frame. The frame is provided with multiple spring plates arranged along the length of the vibrating frame. The multiple spring plates are inclined along the length of the vibrating frame and are respectively fixed to the two sides of the vibrating frame. The frame is provided with a swinging component that swings along the length of the vibrating frame. The vibrating frame is provided with a connecting rod. The swinging component is connected to the vibrating frame through the connecting rod. This application has the effect of improving the separation efficiency of copper particles.

[0004] Regarding the aforementioned technologies, although most copper particles leave the screen from the top, in actual implementation, it was found that some copper particles are small in size or are blocked by rubber waste, and some copper particles mixed in with the rubber waste leave the screen from the bottom. The screening rate for copper particles is still not high enough and needs to be improved. Summary of the Invention

[0005] This application provides an integrated copper granulator and its processing and screening technology, which can further screen the waste from the coarse screening and return the intermediate waste from the fine screening to the starting end for re-screening, greatly improving the screening rate of copper particles.

[0006] The integrated copper wire granulator provided in this application adopts the following technical solution: An integrated copper granulator includes a base plate, a copper granule screening device mounted on the base plate, a feeding hopper, a crushing device, a blower, and an electrostatic screening device. The crushing device includes crushing rollers and a collecting hopper located below the crushing rollers. The air inlet of the blower is provided with a discharge cylinder. A feeding pipe is connected between the side wall of the discharge cylinder and the collecting hopper. A filter cylinder is fixed inside the discharge cylinder. The air inlet of the blower is connected to the inner center of the filter cylinder. A discharge channel is provided between the outer wall of the filter cylinder and the inner wall of the discharge cylinder. The copper granule screening device includes a screen, a blower, and a pump. The lower end of the discharge cylinder is located above the screen, the air outlet of the blower is located below the screen, and the air inlet of the blower is located above the screen. The screen is inclined, with a metal outlet at the upper end and a rubber outlet at the lower end. The rubber outlet is connected to a buffer frame, which is connected to the inlet of the electrostatic screening device via a screw feeder. The electrostatic screening device has a copper particle discharge hopper, a mixture discharge hopper, and a rubber discharge hopper. The mixture discharge hopper is connected to the collection hopper via a screw feeder.

[0007] By adopting the above technical solution, after wire scrap is fed into the feed hopper, the scrap moves in the following sequence: feed hopper, crushing device, feed pipe, discharge cylinder, copper granule screening device, and electrostatic screening device. The electrostatic screening device is used to further screen the scrap, collecting the corresponding material from the copper granule discharge hopper and rubber discharge hopper, thereby improving the copper screening rate. The scrap output from the mixed discharge hopper is returned to the collection hopper for recycling, further improving the screening rate, reducing waste, and increasing the copper yield.

[0008] Optionally, the electrostatic screening device includes a metal roller, a corona electrode, and a brush. The corona electrode and the brush are located on both sides of the metal roller. The metal roller is grounded. The copper particle discharge hopper is located below the metal roller on the side near the corona electrode. The mixture discharge hopper is located directly below the metal roller. The rubber discharge hopper is located below the metal roller on the side near the brush.

[0009] By employing the above technical solution, the material falls onto the metal roller. The rotation of the metal roller carries the material into the corona electric field between the corona electrode and the grounding electrode of the metal roller. Copper particles with good conductivity can quickly transfer their charge through the metal roller when they come into contact with the surface of the metal roller. Under the action of the rotation of the metal roller, the copper particles are thrown off the surface of the metal roller and fall into the copper particle discharge hopper. Non-metallic or non-conductive particles with weak conductivity have difficulty transferring their own charge when they come into contact with the metal roller. Due to the attraction between opposite charges, they are adsorbed onto the surface of the metal roller. As the metal roller rotates, they are carried to the back of the metal roller and brushed off, falling into the rubber discharge hopper. The material that cannot be completely separated and is in a mixed state falls into the mixture discharge hopper.

[0010] Optionally, the inlet end of the electrostatic screening device is provided with a screw feeder three, and the bottom of the screw feeder three is provided with a material leakage slit, the length direction of which extends along the length direction of the metal roller.

[0011] By adopting the above technical solution, the material is evenly distributed to various parts of the material leakage gap through the conveying action of the screw feeder, and then sprinkled downwards onto the metal roller, thereby improving the dispersion of the material on the metal roller and increasing the utilization rate of the metal roller length.

[0012] Optionally, a set of screw feeders is provided at the bottom of the inner bottom of the copper particle discharge hopper, the mixture discharge hopper, and the rubber discharge hopper, and the outlet end of the copper particle discharge hopper, the mixture discharge hopper, and the rubber discharge hopper corresponds to the discharge end of the screw feeder.

[0013] By adopting the above technical solution, the material after screening is concentrated in one outlet and discharged through the conveying action of the screw feeder, making it easy to receive by a container.

[0014] Optionally, the copper granule screening device is equipped with a magnetic roller, a copper material channel, and an iron material channel. The magnetic roller is located below the metal outlet, the copper material channel is located next to the magnetic roller, and the iron material channel is located below the magnetic roller.

[0015] By adopting the above technical solution, the metal particles falling onto the magnetic roller move with the magnetic roller. Since the copper particles are not magnetically attracted, they are thrown into the copper material channel. The iron particles are magnetically attracted and, after reaching the bottom of the magnetic roller, fall downward into the iron material channel as the magnetic attraction disappears. In this way, ferromagnetic impurities in the copper particles are further separated.

[0016] Optionally, the copper granule screening device is equipped with a screening frame, and a second screen is fixed on the screening frame. The second screen is connected to the outlet end of the copper material channel. The second screen and the screening frame are inclined. The lower end of the screening frame is respectively provided with a copper material outlet one and a copper material outlet two. The first copper material outlet corresponds to the copper material on the second screen, and the second copper material outlet corresponds to the copper material at the bottom of the screening frame.

[0017] By adopting the above technical solution, after the copper particles fall onto the second screen, they move downward through the inclined second screen and the screening frame, and are screened by size, directly outputting two different sizes of copper particles, reducing subsequent steps.

[0018] Optionally, the screening frame is elastically connected to the housing of the copper granule screening device by a spring, and a vibration motor is fixed to the screening frame.

[0019] By adopting the above technical solution, vibration is applied to the screening frame by a vibrating motor, thereby improving the screening efficiency through vibrating screen.

[0020] Optionally, an impeller is rotatably disposed inside the discharge cylinder, the impeller is located at the inner bottom of the discharge cylinder, and the axis of the impeller is horizontally disposed.

[0021] By adopting the above technical solution, when there are a lot of particles in the discharge cylinder, they can be temporarily stored above the impeller. The impeller moves the particles and feeds them intermittently to the copper granule screening device, avoiding excessive feeding at one time. In addition, the presence of the impeller significantly reduces the ventilation capacity at the bottom of the discharge cylinder, so that the suction of the exhaust fan is concentrated on the feed pipe, ensuring that the particles can be sucked up.

[0022] Optionally, it also includes a dust collector, with the air outlets of the first and second exhaust fans connected to the dust collector; the inner top of the feed hopper is connected to a suction pipe, which is connected to the air inlet of the second exhaust fan.

[0023] By adopting the above technical solution, dust in the airflow is uniformly removed by a dust collector, thus avoiding air pollution. During operation, the crushing device generates a large amount of dust, which is sucked from the feed hopper by the suction force of the second exhaust fan.

[0024] Secondly, this application provides a processing and screening technology for an integrated copper wire granulator, employing the following technical solution: The processing and screening technology of the integrated copper granulator, using the aforementioned integrated copper granulator, includes the following steps: Step S1: Material is fed into the feed hopper, crushed by the crushing device, and the particles fall into the collection hopper; Step S2: The particles in the collection hopper are drawn to the discharge cylinder by the first exhaust fan, the dust in the particles is sucked out by the first exhaust fan and the filter cartridge, the dust in the feed hopper is sucked out by the second exhaust fan, and all the dust is sent to the dust collector. Step S3: The particulate matter falls from the feed cylinder onto the copper granule screening device for screening, separating metal particles and rubber waste. The dust and lint at the copper granule screening device are then sucked out by the second exhaust fan to the dust collector. Step S4: The metal particles are screened by the magnetic roller to separate ferromagnetic impurities and copper particles. The copper particles are then screened by size through the screening frame and screen two before being discharged. Step S5: The rubber waste is sent to the electrostatic screening device for further screening into copper particles, rubber particles, and a mixture. The copper particles and rubber particles are discharged through the chute respectively. Step S6: The mixture is returned to the collection hopper for recirculation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an electrostatic screening device, waste materials are further screened, and the corresponding materials are collected from the copper particle discharge hopper and the rubber discharge hopper to improve the copper screening rate; the waste materials output from the mixture discharge hopper are returned to the collection hopper for recycling to further improve the screening rate, reduce waste, and increase the copper yield. 2. Through a rational airflow channel layout, dust in the feed hopper, discharge cylinder, and copper granule screening device is collected and sent to the dust collector for centralized dust removal, thus avoiding air pollution; 3. Through reasonable structural layout and pipeline arrangement, the structure is compact and integrated, reducing the footprint of the equipment. Attached Figure Description

[0026] Figure 1 This is a perspective view of the integrated copper wire granulator of the embodiment; Figure 2 This is a top view of an embodiment; Figure 3 This is a front cross-sectional view of an embodiment; Figure 4 This is a right-side cross-sectional view of an embodiment; Figure 5 This is a rear cross-sectional view of an embodiment; Figure 6 This is a left-side cross-sectional view of an embodiment.

[0027] Explanation of reference numerals in the attached drawings: 10. Base plate; 1. Feed hopper; 2. Crushing device; 3. Exhaust fan one; 4. Copper granule screening device; 5. Electrostatic screening device; 6. Dust collector; 21. Crushing roller cutter; 22. Collecting hopper; 31. Discharge cylinder; 23. Feed pipe; 32. Filter cartridge; 33. Discharge channel; 34. Impeller; 41. Screen one; 42. Exhaust fan two; 43. Blower; 44. Metal outlet; 45. Rubber outlet; 46. Buffer frame; 7. Magnet roller; 71 72. Copper feed chute; 73. Iron feed chute; 74. Screening frame; 75. Spring; 76. Vibrating motor; 77. Screen II; 78. Copper material outlet I; 79. Copper material outlet II; 20. Dust suction pipe; 40. Screw feeder I; 51. Copper particle discharge hopper; 52. Mixture discharge hopper; 53. Rubber discharge hopper; 54. Screw feeder II; 55. Metal roller; 56. Corona electrode; 57. Brush; 58. Screw feeder III; 59. Screw feeder IV. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1:

[0030] Reference Figure 1 and Figure 2This embodiment discloses an integrated copper granulator, including a base plate 10, a copper granule screening device 4 mounted on the base plate 10, a feed hopper 1, a crushing device 2, an exhaust fan 3, an electrostatic screening device 5, and a dust collector 6. The waste material is moved in the order of feed hopper 1, crushing device 2, copper granule screening device 4, and electrostatic screening device 5. Both the copper granule screening device 4 and the electrostatic screening device 5 can output the screened copper particles. The feed hopper 1 and crushing device 2 are located at the front of the equipment, the copper granule screening device 4 is located on the right side of the equipment, the electrostatic screening device 5 is located at the rear side of the equipment, the dust collector 6 is located on the left side of the equipment, and the exhaust fan 3 is located above the copper granule screening device 4. Through a reasonable structural layout and pipeline arrangement, the structure is compact and integrated, reducing the equipment's footprint.

[0031] Reference Figure 1 and Figure 3 The feed hopper 1 is equipped with a curtain at its opening. The crushing device 2 includes a crushing roller 21 and a collection hopper 22 located below the crushing roller 21. The crushing roller 21 is driven to rotate by an independent motor. The crushing roller 21 is located at the bottom inside the feed hopper 1. The crushing roller 21 crushes the wire waste into particles by rotating at high speed, and then the particles fall to the bottom of the collection hopper 22.

[0032] Reference Figure 3 and Figure 4 The exhaust fan 3 has a discharge cylinder 31 at its air inlet. A feed pipe 23 connects the side wall of the discharge cylinder 31 to the collection hopper 22. A filter cylinder 32 is fixed inside the discharge cylinder 31. Both the discharge cylinder 31 and the filter cylinder 32 are vertically arranged. The filter cylinder 32 is shaped like a trumpet, wider at the bottom than at the top. The air inlet of the exhaust fan 3 is connected to the inner center of the filter cylinder 32. A discharge channel 33 is provided between the outer wall of the filter cylinder 32 and the inner wall of the discharge cylinder 31. The suction force of the exhaust fan 3 draws the particles in the collection hopper 22 into the discharge cylinder 31 through the feed pipe 23. Due to the obstruction of the outer wall of the filter cylinder 32, the particles fall downward through the discharge channel 33 into the copper granule screening device 4. Dust or smaller lint is blocked by the filter cylinder 32 or drawn upward by the exhaust fan 3 through the central hole at the bottom of the filter cylinder 32.

[0033] An impeller 34 is rotatably installed inside the discharge cylinder 31. The impeller 34 is located at the bottom of the discharge cylinder 31 and its axis is horizontal. The impeller 34 is driven to rotate by an independent motor. When there are a lot of particles in the discharge cylinder 31, they can be temporarily stored above the impeller 34. The impeller 34 moves the particles and feeds them intermittently to the copper granule screening device 4, avoiding excessive feeding at one time. The presence of the impeller 34 significantly reduces the ventilation capacity at the bottom of the discharge cylinder 31, so that the suction of the exhaust fan 3 is concentrated on the feed pipe 23, ensuring that the particles can be sucked up.

[0034] Reference Figure 4The copper granule screening device 4 includes a screen 41, a blower 42, and a blower 43. The lower end of the discharge cylinder 31 is located above the screen 41, the outlet of the blower 43 is located below the screen 41, and the inlet of the blower 42 is located above the screen 41. The screen 41 is inclined, with a metal outlet 44 at its upper end and a rubber outlet 45 at its lower end. A buffer frame 46 is connected to the rubber outlet 45. The structure and principle of the copper granule screening device 4, which realizes the vibration of the screen 41, the upward movement of metal particles, and the downward movement of rubber particles, have been disclosed in the invention patent application with publication number CN113145452A and are prior art, so they will not be described in detail here. The blower 43 and the blower 42 work together to generate an upward airflow at the screen 41, thereby blowing dust, lint, and other fine particles in the waste upward to the blower 42 for suction.

[0035] The copper particle screening device 4 is equipped with a magnetic roller 7, a copper feed channel 71, and an iron feed channel 72. The magnetic roller 7 is located below the metal outlet 44, the copper feed channel 71 is located beside the magnetic roller 7, and the iron feed channel 72 is located below the magnetic roller 7. The magnetic roller 7 is driven by an independent motor to rotate, with its top rotating towards the copper feed channel 71. The magnetic roller 7 is a semi-magnetic roller, with the magnet inside located on the side closest to the copper feed channel 71, and the magnet does not rotate with the magnetic roller 7. Metal particles falling onto the magnetic roller 7 move with the magnetic roller 7. Since copper particles are not magnetically attracted, they are thrown into the copper feed channel 71; iron particles are magnetically attracted, and after reaching the bottom of the magnetic roller 7, they fall downwards into the iron feed channel 72 as the magnetic force disappears. This method further separates ferromagnetic impurities from the copper particles. The outer end of the iron feed channel 72 extends out of the device casing and can be directly collected by a container.

[0036] A screening frame 73 is installed inside the copper granule screening device 4. The screening frame 73 is elastically connected to the housing of the copper granule screening device 4 by a spring 74. A vibration motor 75 is fixed to the screening frame 73. A second screen 76 is fixed on the screening frame 73 and is connected to the outlet end of the copper material channel 71. The second screen 76 and the screening frame 73 are set at an angle. The lower end of the screening frame 73 is provided with a copper material outlet 1 77 and a copper material outlet 2 78. The copper material outlet 1 77 corresponds to the copper material on the second screen 76, and the copper material outlet 2 78 corresponds to the copper material at the bottom of the screening frame 73. The vibration motor 75 applies vibration to the screening frame 73, thereby screening the copper particles output from the copper material channel 71 according to size. The copper particles on the second screen 76 are larger than those below the second screen 76, directly outputting two different sizes of copper particles, reducing subsequent steps. The outer ends of copper material outlet 1 (77) and copper material outlet 2 (78) are led out of the equipment housing through slides, and copper particles can be directly collected through containers.

[0037] The second exhaust fan 42 is specifically fixed to the side wall of the dust collector 6. The exhaust ends of the first exhaust fan 3 and the second exhaust fan 42 are connected to the dust collector 6. The dust collector 6 is specifically a bag filter or a pulse dust collector. The air after dust removal by the dust collector 6 can be directly discharged without polluting the outside air. The inner top of the feed hopper 1 is connected to a suction pipe 24, which is connected to the air inlet of the second exhaust fan 42. When the crushing device 2 is working, a large amount of dust will be generated inside. The dust in the feed hopper 1 is sucked out by the suction force of the second exhaust fan 42.

[0038] Reference Figure 5 and Figure 6 The buffer box 46 is connected to the inlet of the electrostatic screening device 5 via a screw feeder 47. Most of the material falling into the buffer box 46 is rubber waste, but some smaller copper particles, or those obstructed by the rubber waste, are mixed in. This mixture is further conveyed to the electrostatic screening device 5 for fine screening. The electrostatic screening device 5 has a copper particle discharge hopper 51, a mixture discharge hopper 52, and a rubber discharge hopper 53. The mixture discharge hopper 52 is connected to the collection hopper 22 via a screw feeder 54.

[0039] The electrostatic screening device 5 includes a metal roller 55, a corona electrode 56, and a brush 57. The metal roller 55 is driven to rotate by an independent motor and is grounded. The corona electrode 56 and the brush 57 are located on both sides of the metal roller 55. The top of the metal roller 55 rotates towards the corona electrode 56. The copper particle discharge hopper 51 is located below the metal roller 55 on the side close to the corona electrode 56. The mixture discharge hopper 52 is located directly below the metal roller 55. The rubber discharge hopper 53 is located below the metal roller 55 on the side close to the brush 57.

[0040] Material entering the electrostatic screening device 5 falls onto the metal roller 55. The rotation of the metal roller 55 carries the material into the corona field between the corona electrode 56 and the grounding electrode of the metal roller 55. Copper particles with good conductivity, upon contact with the surface of the metal roller 55, can quickly transfer their charge through the metal roller 55. Under the rotation of the metal roller 55, the copper particles are thrown off the surface of the metal roller 55 and fall into the copper particle discharge hopper 51. Non-metallic or non-conductive particles with weak conductivity have difficulty transferring their charge upon contact with the metal roller 55. Due to the attraction between opposite charges, they are adsorbed onto the surface of the metal roller 55 and carried behind the metal roller 55 by its rotation, where they are brushed off by the brush 57 and fall into the rubber discharge hopper 53. Material that cannot be completely separated and remains in a mixed state falls into the mixture discharge hopper 52.

[0041] To improve the dispersion of materials on the metal roller 55 and increase the utilization rate of the length of the metal roller 55, the inlet end of the electrostatic screening device 5 is equipped with a screw feeder 3 58. The bottom of the screw feeder 3 58 is equipped with a material leakage slit 581. The length direction of the material leakage slit 581 extends along the length direction of the metal roller 55. The width of the material leakage slit 581 is small. Through the conveying action of the screw, the material is dispersed relatively evenly to all parts of the material leakage slit 581 and then sprinkled downward onto the metal roller 55.

[0042] To facilitate the collection of screened materials, a set of screw feeders 59 is installed at the bottom of the inner bottom of the copper particle discharge hopper 51, the mixture discharge hopper 52, and the rubber discharge hopper 53. The outlet ends of the copper particle discharge hopper 51, the mixture discharge hopper 52, and the rubber discharge hopper 53 correspond to the discharge ends of the screw feeders 59. The screened materials are collected and discharged through a single outlet by the conveying action of the screw rod.

[0043] The outer ends of the copper particle discharge hopper 51 and the rubber discharge hopper 53 are led out of the equipment housing through slides, and the corresponding materials can be directly collected through the container. The material from the mixture discharge hopper 52 is sent back to the collection hopper 22 by the screw conveyor 54, and then carried out the next cycle to avoid waste, further screen the copper particles and improve the yield.

[0044] The implementation principle of the integrated copper granulator in this application embodiment is as follows: After wire scrap is fed into the feed hopper 1, the scrap moves in the following order: feed hopper 1, crushing device 2, feed pipe 23, discharge cylinder 31, copper granule screening device 4, and electrostatic screening device 5. The copper granule screening device 4 separates ferromagnetic particles using a magnetic roller 7 and collects them from the iron material channel 72. The copper particles are then screened into two sizes using a screening frame 73 and a second screen 76, and collected from copper material outlet 1 77 and copper material outlet 2 78, respectively.

[0045] The electrostatic screening device 5 is used to further screen the waste material, collecting the corresponding material from the copper particle discharge hopper 51 and the rubber discharge hopper 53 to improve the copper screening rate. The waste material output from the mixture discharge hopper 52 is returned to the collection hopper 22 for recycling to further improve the screening rate, reduce waste, and increase the copper yield.

[0046] Furthermore, this equipment, through a rational airflow channel layout, collects dust from the feed hopper 1, discharge cylinder 31, and copper granule screening device 4, and sends it to the dust collector 6 for centralized dust removal, thus avoiding air pollution. The reasonable structural layout and pipeline arrangement achieve a compact, integrated design, reducing the equipment's footprint.

[0047] Example 2:

[0048] The processing and screening technology of the integrated copper granulator, using the integrated copper granulator of Example 1, includes the following steps: Step S1: Material is fed into the feed hopper 1, crushed by the crushing device 2, and the particles fall into the collection hopper 22.

[0049] Step S2: The particles in the collection hopper 22 are drawn to the discharge cylinder 31 by the exhaust fan 3, the dust in the particles is sucked out by the exhaust fan 3 and the filter cartridge 32, and the dust in the feed hopper 1 is sucked out by the exhaust fan 42. All the dust is sent to the dust collector 6.

[0050] Step S3: The particles fall from the feed cylinder 31 onto the copper granule screening device 4 for screening, separating metal particles and rubber waste. The dust and lint at the copper granule screening device 4 are sucked out by the exhaust fan 42 to the dust collector 6.

[0051] Step S4: The metal particles are screened by the magnetic roller 7 to separate ferromagnetic impurities and copper particles. The copper particles are then screened by the screening frame 73 and the screen mesh 76 before being discharged.

[0052] Step S5: The rubber waste is sent to the electrostatic screening device 5 for further screening into copper particles, rubber particles, and a mixture. The copper particles and rubber particles are discharged through the chute respectively.

[0053] Step S6: The mixture is returned to the collection hopper 22 for recirculation.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated copper wire granulator, comprising a base plate (10) and a copper wire granulation screening device (4) disposed on the base plate (10), characterized in that: It also includes a feeding hopper (1), a crushing device (2), a blower (3), an electrostatic screening device (5), and a dust collector (6). The crushing device (2) includes a crushing roller (21) and a collecting hopper (22) located below the crushing roller (21). The air inlet of the blower (3) is provided with a discharge cylinder (31). The side wall of the discharge cylinder (31) is connected to the collecting hopper (22) by a feeding pipe (23). A filter cylinder (32) is fixed inside the discharge cylinder (31). The air inlet of the blower (3) is connected to the inner center of the filter cylinder (32). A discharge channel (33) is provided between the outer side wall of the filter cylinder (32) and the inner wall of the discharge cylinder (31). The copper granule screening device (4) includes a screen (41), a blower (42), and a blower (43). The lower end of the discharge cylinder (31) is located above the screen (41), the air outlet of the blower (43) is located below the screen (41), and the air inlet of the blower (42) is located above the screen (41). The screen (41) is inclined. The upper end of the screen (41) is a metal outlet (44), and the lower end of the screen (41) is a rubber outlet (45). The rubber outlet (45) is connected to a buffer frame (46), and the buffer frame (46) is connected to the inlet end of the electrostatic screening device (5) through a screw feeder (47). The electrostatic screening device (5) has a copper particle discharge hopper (51), a mixture discharge hopper (52), and a rubber discharge hopper (53). The mixture discharge hopper (52) is connected to the collection hopper (22) through a screw feeder (54). The electrostatic screening device (5) includes a metal roller (55), a corona electrode (56), and a brush (57). The corona electrode (56) and the brush (57) are located on both sides of the metal roller (55). The metal roller (55) is grounded. The copper particle discharge hopper (51) is located below the metal roller (55) on the side near the corona electrode (56). The mixture discharge hopper (52) is located directly below the metal roller (55). The rubber discharge hopper (53) is located below the metal roller (55) on the side near the brush (57). The copper granule screening device (4) is equipped with a magnetic roller (7), a copper material channel (71), and an iron material channel (72). The magnetic roller (7) is located below the metal outlet (44), the copper material channel (71) is located next to the magnetic roller (7), and the iron material channel (72) is located below the magnetic roller (7). The copper granule screening device (4) is equipped with a screening frame (73), and a second screen (76) is fixed on the screening frame (73). The second screen (76) is connected to the outlet end of the copper material channel (71). The second screen (76) and the screening frame (73) are inclined. The lower end of the screening frame (73) is provided with a copper material outlet one (77) and a copper material outlet two (78). The copper material outlet one (77) corresponds to the copper material on the second screen (76), and the copper material outlet two (78) corresponds to the copper material at the bottom of the screening frame (73).

2. The integrated copper wire granulator according to claim 1, characterized in that: The electrostatic screening device (5) is provided with a screw feeder (58) at the inlet end. The bottom of the screw feeder (58) is provided with a material leakage slit (581). The length direction of the material leakage slit (581) extends along the length direction of the metal roller (55).

3. The integrated copper wire granulator according to claim 1, characterized in that: The inner bottom of the copper particle discharge hopper (51), the mixture discharge hopper (52), and the rubber discharge hopper (53) are respectively equipped with a set of screw feeders four (59), and the outlet ends of the copper particle discharge hopper (51), the mixture discharge hopper (52), and the rubber discharge hopper (53) are respectively connected to the discharge end of the corresponding screw feeder four (59).

4. The integrated copper wire granulator according to claim 1, characterized in that: The screening frame (73) is elastically connected to the housing of the copper granule screening device (4) by a spring (74), and a vibration motor (75) is fixed to the screening frame (73).

5. The integrated copper wire granulator according to claim 1, characterized in that: An impeller (34) is rotatably disposed inside the discharge cylinder (31). The impeller (34) is located at the bottom of the discharge cylinder (31), and the axis of the impeller (34) is horizontal.

6. The integrated copper wire granulator according to claim 1, characterized in that: The exhaust ends of the first exhaust fan (3) and the second exhaust fan (42) are connected to the dust collector (6); the inner top of the feed hopper (1) is connected to the suction pipe (24), and the suction pipe (24) is connected to the air inlet of the second exhaust fan (42).

7. The processing and screening technology of the integrated copper granulator, using the integrated copper granulator as described in any one of claims 1-6, is characterized in that: Includes the following steps: Step S1: Material is fed into the feed hopper (1), crushed by the crushing device (2), and the particles fall into the collection hopper (22); Step S2: The particles in the collection hopper (22) are drawn to the discharge cylinder (31) by the first exhaust fan (3), and the dust in the particles is sucked out by the first exhaust fan (3) and the filter cartridge (32). The dust in the feed hopper (1) is sucked out by the second exhaust fan (42). All dust is sent to the dust collector (6). Step S3: The particles fall from the feed cylinder (31) onto the copper granule screening device (4) for screening, separating metal particles and rubber waste. The dust and lint at the copper granule screening device (4) are sucked out by the second exhaust fan (42) to the dust collector (6). Step S4: The metal particles are screened by the magnetic roller (7) to separate ferromagnetic impurities and copper particles. The copper particles are screened by the screening frame (73) and the second screen (76) for size separation before being discharged. Step S5: Rubber waste is sent to an electrostatic screening device (5) for further screening into copper particles, rubber particles, and a mixture. The copper particles and rubber particles are discharged through chutes respectively. Step S6: The mixture is returned to the collection hopper (22) for recirculation.

Images