A PET recycling device

Abstract

The present invention provides a PET recycling device, belonging to the technical field of PET, which comprises a base. Along the length direction on the base, a screening component, an eddy current separation component, a lifting component and a crushing component are sequentially arranged. The screening component includes a casing fixedly arranged on the base and a conveyor belt. A magnetic detector is arranged inside the casing. One side surface of the casing is connected with a double-headed cylinder. One end of the telescopic shaft of the double-headed cylinder is connected with a push plate. A notch is arranged on the other side surface of the casing and at the position where the projection of the push plate coincides. Above the casing and on both sides of the double-headed cylinder, there are baffles for blocking materials. When the push plate moves towards the notch direction, it pushes the raw materials towards the notch direction and at the same time drives the baffles to move downwards. Therefore, the materials containing magnetic metals are placed between the two baffles, so that the push plate can push all the raw materials containing magnetic metals out from the notch.

Description

Technical Field

[0001] The present invention belongs to the technical field of PET, and particularly relates to a PET recycling device. Background Art

[0002] In the natural environment, PET is extremely difficult to degrade. A large number of waste PET plastic products are piled up, becoming the main cause of "white pollution" and damaging the ecological balance. Even worse, they will degrade into "microplastics", enter the ecosystem and organisms, threatening biological health. Therefore, recycling PET is of great significance, which can not only reduce the amount of landfill waste, lower the pollution risk to soil and groundwater, but also make the best use of materials.

[0003] In the prior art, its working process includes classification, crushing, cleaning, drying and other links. In the classification stage, metal materials mixed in PET materials must be removed completely. Usually, an eddy current separator is used, which can effectively separate various non-magnetic metals such as aluminum and copper. However, in the face of magnetic metals such as iron and nickel, the eddy current separator has limitations and it is difficult to accurately remove them from PET materials, which also becomes a part to be optimized in this process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a PET recycling device.

[0005] The technical solution adopted to solve the above technical problem is: a PET recycling device, including a base, characterized in that: a screening component, an eddy current separation component, a lifting component and a crushing component are sequentially arranged on the base along the length direction; the screening component includes a casing fixedly arranged on the base, three rotating shafts are rotatably arranged on the casing, the three rotating shafts are jointly wound with a conveyor belt, a motor I is arranged on the side surface of the casing, and the rotating shaft of the motor I is connected with one of the rotating shafts. The upper two rotating shafts are in the same plane, and a magnetic detector is arranged inside the casing and between the upper two rotating shafts; one side surface of the casing and above the conveyor belt is connected with a double-headed cylinder, the telescopic shaft of the double-headed cylinder passes through the side surface of the casing, and one end of the telescopic shaft of the double-headed cylinder is connected with a push plate. A notch is arranged on the other side surface of the casing and at the position where the projection of the push plate coincides; on both sides of the double-headed cylinder and above the casing, there are baffles I for blocking materials. Slide bars I are arranged on both sides of the baffle I, the slide bars I are slidably arranged on the casing, a spring I is sleeved on the slide bars I, and both sides of the spring I are respectively connected with the baffle I and the casing. On the side of the baffle I close to the double-headed cylinder, there is an inclined plate matched with the push plate.

[0006] Further, a rotation resistance plate is rotatably provided at the notch on the casing, and a torsion spring is sleeved on the rotating shaft of the rotation resistance plate. The two ends of the torsion spring are respectively connected to the casing and the rotating shaft of the rotation resistance plate. Two inclined strips are provided on the upper side of the rotation resistance plate, and two dial platforms for driving the two inclined strips to rotate are provided on the first baffle.

[0007] Further, an L-shaped slide is connected to the lower surface of one side of the casing and located below the double-headed cylinder. The other end of the telescopic shaft of the double-headed cylinder is provided with a sliding connecting rod, and the sliding connecting rod penetrates through the L-shaped slide. An L-shaped slide bar is slidably provided on the L-shaped slide. The upper end of the L-shaped slide bar contacts the sliding connecting rod. The lower end of the L-shaped slide bar is connected to a long slide bar, and the long slide bar is slidably provided in the casing. A second spring is sleeved outside the long slide bar, and the two ends of the second spring are respectively connected to the casing and the long slide bar. The lower end of the long slide bar is hinged to the lower end of the connecting rod, and the upper end of the connecting rod is hinged to the middle part of the magnetic plate. One side of the magnetic plate is hinged below the notch of the casing.

[0008] Further, a magnetic metal library is provided below the other side of the magnetic plate, and a second baffle is slidably provided above the magnetic metal library on the magnetic plate. Slide bars II are respectively provided at the two ends of the second baffle, and the slide bars II are slidably provided on the side surface of the magnetic plate. A third spring is sleeved outside the slide bars II, and the two ends of the third spring are respectively connected to the magnetic plate and the second baffle. A top platform for driving the slide bars II is provided on the magnetic metal library.

[0009] Further, the lower end of the sliding connecting rod is sleeved on the long slide bar, and a circular retaining platform for cooperating with the sliding connecting rod is provided on the long slide bar.

[0010] Further, the crushing assembly includes a bottom plate fixedly provided on the base. A support column is vertically connected to the bottom plate. A ring groove box is connected above the support column. A columnar shell is connected to the ring groove box. A middle ring plate is connected to the middle part of the columnar shell. Inner cylindrical shells are vertically provided near the center edge of the middle ring plate, and the openings of the inner cylindrical shells extend to the outside of the upper plane of the columnar shell. A top cover is connected to the upper plane of the columnar shell and above the upper openings of the inner cylindrical shells.

[0011] Further, a second motor is provided on the lower surface of the top cover. The rotating shaft of the second motor is connected to the cavity rod. A first crushing impeller is provided on the cavity rod. A central main wheel is provided below the first crushing impeller on the cavity rod. A first support plate is provided in the middle part of the inner cylindrical shell. Three star wheels and a second crushing impeller are rotatably provided around the axis of the cavity rod on the first support plate, and the star wheels are in frictional cooperation with the inner circles of the central main wheel and the second crushing impeller at the same time.

[0012] Further, a second support plate is provided at the upper part of the inner cylinder shell. An inlet hole for filling water is provided above the second support plate at the upper end of the cavity rod. A cylindrical cavity is provided on the second support plate at the position of the inlet hole. The inner cavity of the cylindrical cavity is communicated with the inlet hole. A liquid adding pipe is connected to the inner cavity of the cylindrical cavity and extends to the outside of the top cover. A cleaning hole is provided below the cavity rod. An outlet hole is provided in the lower half of the cylindrical part of the inner cylinder shell. A waste water pipe is communicated at the middle ring plate.

[0013] Further, a hydraulic cylinder is provided on the bottom plate. The end part of the telescopic shaft of the hydraulic cylinder is provided with a lifting cylinder. The lifting cylinder is slidably arranged in the columnar shell. A conical screen is provided at the upper part of the lifting cylinder. Two sliding cylinders are rotatably connected to the upper part of the conical screen. A sliding column is slidably connected inside the sliding cylinder. A fourth spring is sleeved on the sliding column inside the sliding cylinder, and both ends of the fourth spring are respectively connected to the sliding column and the sliding cylinder. The upper end of the sliding column is hinged to a semi-circular plate, and the middle part of the semi-circular plate is hinged to the bottom of the middle ring plate. A stop block for blocking the rotation of the semi-circular plate is provided at the bottom of the middle ring plate. An air hole for passing dry gas is provided on the side part of the columnar shell above the conical screen.

[0014] Further, an inclined circular ring is provided in the groove of the ring groove box. A discharge port is provided at the bottom of the inclined circular ring on the ring groove box.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] (1) When the magnetic detector of the screening component of the present invention detects magnetic metal in the raw material, the telescopic shaft of the double-headed cylinder drives the push plate to move towards the notch direction, pushing the raw material towards the notch direction, and at the same time driving the first baffle to move downwards. Therefore, the materials containing magnetic metal are placed between the two first baffles, so that the push plate can push all the raw materials containing magnetic metal out from the notch; (2) After the screening component of the present invention pushes the raw material containing magnetic metal to the magnetic plate, the magnetic plate attracts the magnetic metal, and the PET raw material slides along the magnetic plate to the second baffle; when the push plate moves to the notch, the side of the magnetic plate close to the magnetic metal library automatically tilts upwards, and the PET in the magnetic plate falls back onto the conveyor belt again, having the effect of saving raw materials; (3) The magnetic plate of the screening component of the present invention rotates back to the original position, that is, even when the magnetic plate is tilted downwards on the side of the magnetic metal library, the top platform holds the second sliding rod, separating the second baffle from the lower surface of the magnetic plate, the magnetic plate is powered off, the magnetic plate no longer has magnetism, and the magnetic metal material in the magnetic plate slides down along the magnetic plate into the magnetic metal library; (4) The crushing component of the present invention automatically cuts, crushes, cleans and dries the PET raw material. The rotating cleaning water flow cleans the PET raw material more cleanly. And when the telescopic shaft of the hydraulic cylinder moves to the lower position, the conical screen is separated from the inner cylinder shell, and the raw material falls along the inclined surface of the conical screen into the inclined circular ring in the ring groove box, and the PET raw material then flows out from the discharge port along the inclined circular ring for easy recycling. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the front side of an embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the back side of an embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the casing of the present invention.

[0020] Figure 4 It is a schematic structural diagram of the internal cross-section of the casing of the present invention.

[0021] Figure 5 It is a schematic structural diagram of a screening component of the present invention.

[0022] Figure 6 It is Figure 5 The partial enlarged view at position A in

[0023] Figure 7 It is Figure 5 The partial enlarged view at position B in

[0024] Figure 8 It is Figure 5 The partial enlarged view at position C in

[0025] Figure 9 It is a schematic structural diagram of the rotation resistance plate of the present invention.

[0026] Figure 10 It is a schematic structural diagram of the crushing component of the present invention.

[0027] Figure 11 It is a schematic structural diagram of the internal cylinder shell cross-section of the crushing component of the present invention.

[0028] Figure 12 It is a schematic structural diagram of the inside of the crushing component of the present invention.

[0029] Figure 13 It is a schematic structural diagram of the installation of the first crushing impeller of the present invention.

[0030] Figure 14 It is Figure 13 The partial enlarged view at position D in

[0031] Figure 15 It is a schematic structural diagram of the cross-section of the crushing component of the present invention.

[0032] Figure 16 It is Figure 15 The partial enlarged view at position E in

[0033] Figure 17 It is Figure 15 The partial enlarged view at position F in

[0034] Reference numerals: 1 - base; 2 - screening component; 3 - eddy current separation component; 4 - lifting component; 5 - crushing component; 201 - housing; 2011 - notch; 202 - rotating shaft; 203 - conveyor belt; 204 - motor 1; 205 - magnetic detector; 206 - double-headed cylinder; 207 - push plate; 208 - baffle 1; 209 - slide bar 1; 210 - spring 1; 211 - inclined plate; 212 - rotating resistance plate; 213 - torsion spring; 214 - inclined strip; 215 - dialing platform; 216 - L-shaped slide; 217 - sliding connecting rod; 218 - L-shaped slide bar; 219 - long slide bar; 220 - spring 2; 221 - connecting rod; 222 - magnetic plate; 223 - magnetic metal bin; 224 - baffle 2; 225 - slide bar 2; 226 - spring 3; 227 - top platform; 228 - circular baffle; 501 - bottom plate; 502 - support column; 503 - annular groove box; 5031 - discharge port; 504 - cylindrical shell; 5041 - air hole; 505 - middle ring plate; 506 - inner cylinder shell; 5061 - support plate 1; 5062 - support plate 2; 5063 - liquid outlet hole; 507 - top cover; 508 - motor 2; 509 - cavity rod; 5091 - liquid inlet hole; 5092 - cleaning hole; 510 - crushing impeller 1; 511 - central main wheel; 512 - star wheel; 513 - crushing impeller 2; 514 - cylindrical cavity; 515 - liquid adding pipe; 516 - waste water pipe; 517 - hydraulic cylinder; 518 - lifting cylinder; 519 - conical screen; 520 - sliding cylinder; 521 - sliding column; 522 - spring 4; 523 - semi-circular plate; 524 - stop block; 525 - inclined ring. Detailed implementation manners

[0035] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0036] As Figures 1 to 17 shown, a PET recycling device includes a base 1, and a screening component for screening magnetic metals, an eddy current separation component for screening magnetic metals, a lifting component, and a crushing component are sequentially arranged on the base 1 along the length direction; the screening component includes a housing 201 fixedly arranged on the base 1, three rotating shafts 202 are rotatably arranged on the housing 201, a conveyor belt 203 is wound around the three rotating shafts 202 together, a motor 1 204 is arranged on the side of the housing 201, the rotating shaft of the motor 1 204 is connected to one of the rotating shafts 202, the upper two rotating shafts 202 are in the same plane, the conveyor belt 203 is located between the upper two rotating shafts 202 as a detection area, and a magnetic detector 205 for detecting magnetic metals is arranged inside the housing 201 and between the upper two rotating shafts 202.

[0037] Specifically, the first motor 204 drives a rotating shaft 202 to rotate, thereby driving the conveyor belt 203 to operate. The raw materials are placed on the conveyor belt 203, and the conveyor belt 203 drives the raw materials into the detection area. The magnetic detector 205 detects whether there is magnetic metal material in the raw materials.

[0038] On one side surface of the machine housing 201 and above the conveyor belt 203, a double-headed cylinder 206 is connected. The telescopic shaft of the double-headed cylinder 206 passes through the side surface of the machine housing 201, and one end of the telescopic shaft of the double-headed cylinder 206 is connected with a push plate 207. A notch 2011 is provided on the other side surface of the machine housing 201 and at the position where the projection of the push plate 207 coincides; above the machine housing 201 and on both sides of the double-headed cylinder 206, there are two first baffles 208 for blocking materials, that is, both of the two first baffles 208 are located in the detection area on the conveyor belt 203. Slide bars 209 are provided on both sides of the first baffle 208. The slide bars 209 are slidably arranged on the machine housing 201. A first spring 210 is sleeved on the slide bars 209, and both sides of the first spring 210 are respectively connected with the first baffle 208 and the machine housing 201. On the side of the first baffle 208 close to the double-headed cylinder 206, there is an inclined plate 211 that cooperates with the push plate 207.

[0039] Specifically, when the magnetic detector 205 detects magnetic metal in the raw materials, the double-headed cylinder 206 is started. The telescopic shaft of the double-headed cylinder 206 drives the push plate 207 to move towards the notch 2011, and the raw materials are pushed out from the notch 2011. At the same time, when the push plate 207 moves, the push plate 207 is separated from the inclined plate 211, and the first spring 210 provides elastic force to drive the first baffle 208 to move downward. When the first baffle 208 moves to the lower position, the gap between the first baffle 208 and the conveyor belt 203 is smaller than the minimum diameter of the raw materials. Therefore, the materials containing magnetic metal are placed between the two first baffles 208, so that the push plate 207 can push all the raw materials containing magnetic metal out from the notch 2011.

[0040] Considering that when the conveyor belt 203 is operating normally, the raw materials do not flow out from the notch 2011. A rotating resistance plate 212 is rotatably arranged at the notch 2011 of the machine housing 201, and a torsion spring 213 is sleeved on the rotating shaft of the rotating resistance plate 212. Both ends of the torsion spring 213 are respectively connected with the machine housing 201 and the rotating shaft of the rotating resistance plate 212. Two inclined strips 214 are provided on the upper side of the rotating resistance plate 212, and two dial platforms 215 for driving the two inclined strips 214 to rotate are provided on the first baffle 208.

[0041] Specifically, when the first baffle 208 is in the upper position, the torsion spring 213 provides a torsional force to keep the inclined strip 214 coincident with the notch 2011, preventing the raw materials from flowing out from the notch 2011; when the first baffle 208 moves downward, the dial platform 215 on the first baffle 208 drives the inclined strip 214 to rotate, so the rotating resistance plate 212 rotates synchronously, facilitating the raw materials to flow out from the notch 2011.

[0042] Considering that when the raw material flows out from the notch 2011, there is still some PET material in the raw material, and this part of the PET material needs to be selected. An L-shaped slide 216 is connected to one side surface of the casing 201 and below the double-headed cylinder 206. The other end of the telescopic shaft of the double-headed cylinder 206 is provided with a sliding connecting rod 217. The sliding connecting rod 217 passes through the L-shaped slide 216. An L-shaped slide rod 218 is slidably arranged on the L-shaped slide 216. The upper end of the L-shaped slide rod 218 contacts the sliding connecting rod 217. The lower end of the L-shaped slide rod 218 is connected to a long slide rod 219, and the long slide rod 219 is slidably arranged in the casing 201. A second spring 220 is sleeved outside the long slide rod 219. The two ends of the second spring 220 are respectively connected to the casing 201 and the long slide rod 219. The lower end of the long slide rod 219 is hinged to the lower end of the connecting rod 221. The upper end of the connecting rod 221 is hinged to the middle part of the magnetic plate 222. One side of the magnetic plate 222 is hinged below the notch 2011 of the casing 201.

[0043] Below the other side of the magnetic plate 222, there is a magnetic metal library 223. A second baffle 224 is slidably arranged on the magnetic plate 222 above the magnetic metal library 223. Slide rods 225 are respectively arranged at both ends of the second baffle 224. The slide rods 225 are slidably arranged on the side surface of the magnetic plate 222. A third spring 226 is sleeved outside the slide rods 225. The two ends of the third spring 226 are respectively connected to the magnetic plate 222 and the second baffle 224. A top platform 227 for driving the slide rods 225 is arranged on the magnetic metal library 223.

[0044] The lower end of the sliding connecting rod 217 is sleeved on the long slide rod 219, and a circular retaining platform 228 cooperating with the sliding connecting rod 217 is arranged on the long slide rod 219.

[0045] Specifically, when the push plate 207 does not move, the sliding connecting rod 217 contacts the L-shaped sliding rod 218. At this time, the second spring 220 is in a compressed state, and the side of the magnetic plate 222 close to the magnetic metal bin 223 inclines downward; when the telescopic shaft of the double-headed cylinder 206 drives the push plate 207 to move, the telescopic shaft of the double-headed cylinder 206 drives the sliding connecting rod 217 to move synchronously. The sliding connecting rod 217 separates from the L-shaped sliding rod 218, and the second spring 220 provides elastic force to drive the long sliding rod 219 to move towards the magnetic metal bin 223. Through the connecting rod 221 to provide and transmit power, the magnetic plate 222 rotates. At this time, the magnetic plate 222 is electrified, so that the magnetic plate 222 has magnetism, and the side of the magnetic plate 222 close to the magnetic metal bin 223 still inclines downward. The second sliding rod 225 separates from the top platform 227, and the third spring 226 provides elastic force to drive the second baffle 224 and the second sliding rod 225 to move downward, so that the lower surface of the second baffle 224 contacts the magnetic plate 222. The push plate 207 pushes the raw material from the notch 2011 onto the magnetic plate 222, and the magnetic plate 222 attracts the magnetic metal. The PET slides along the magnetic plate 222 and falls onto the second baffle 224; when the push plate 207 moves to the notch 2011, the sliding connecting rod 217 contacts the circular retaining platform 228, driving the circular retaining platform 228 and the long sliding rod 219 to continuously move towards the magnetic metal bin 223. By the same principle as above, the magnetic plate 222 continuously rotates, making the side of the magnetic plate 222 close to the magnetic metal bin 223 incline upward. Therefore, the PET in the magnetic plate 222 falls back onto the conveyor belt 203 again; when the push plate 207 returns to the original state, the magnetic plate 222 rotates back to the original position, the second baffle 224 separates from the lower surface of the magnetic plate 222, the magnetic plate 222 is powered off, the magnetic plate 222 no longer has magnetism, and the magnetic metal material in the magnetic plate 222 slides down along the magnetic plate 222 into the magnetic metal bin 223.

[0046] The raw material containing non-magnetic metal passes through the eddy current separation assembly to remove the non-magnetic metal in the raw material, and then moves to the lifting assembly. The lifting assembly is composed of two rotating shafts, a conveyor belt and a frame. The two rotating shafts are rotatably arranged in the frame, and the conveyor belt is wound around the two rotating shafts. One of the rotating shafts and a rotating shaft 202 are jointly wound with a synchronous belt. Therefore, when the first motor 204 drives the rotating shaft 202 to rotate, the conveyor belt of the lifting assembly rotates synchronously, and the conveyor belt of the lifting assembly transports the PET raw material to the crushing assembly.

[0047] The crushing component includes a bottom plate 501 fixedly arranged on the base 1. A support column 502 is vertically connected to the bottom plate 501. Above the support column 502, a ring groove box 503 is connected. A columnar shell 504 is connected to the ring groove box 503. In the middle part of the columnar shell 504, a middle ring plate 505 is connected. Near the center edge of the middle ring plate 505, an inner cylinder shell 506 is vertically arranged, and the upper opening of the inner cylinder shell 506 extends to the outside of the upper plane of the columnar shell 504. Above the upper opening of the inner cylinder shell 506 on the upper plane of the columnar shell 504, a top cover 507 is connected.

[0048] On the lower surface of the top cover 507, a second motor 508 is arranged. The rotating shaft of the second motor 508 is connected to a cavity rod 509. On the cavity rod 509, a first crushing impeller 510 is arranged. Below the first crushing impeller 510 on the cavity rod 509, a central main wheel 511 is arranged. In the middle part of the inner cylinder shell 506, a first support plate 5061 is arranged. On the first support plate 5061, three star wheels 512 and a second crushing impeller 513 are evenly rotatably arranged around the axis of the cavity rod 509, and the star wheels 512 are in frictional fit with both the central main wheel 511 and the inner ring of the second crushing impeller 513 at the same time.

[0049] Specifically, the raw materials in the lifting device enter from the upper opening of the inner cylinder shell 506. The second motor 508 drives the cavity rod 509 to rotate. The cavity rod 509 drives the first crushing impeller 510 and the central main wheel 511 to rotate. Through the transmission of power by the three star wheels 512, the second crushing impeller 513 rotates in the opposite direction to the first crushing impeller 510, and the first crushing impeller 510 and the second crushing impeller 513 cut and crush the raw materials.

[0050] On the upper part of the inner cylinder shell 506, a second support plate 5062 is arranged. Above the second support plate 5062 at the upper end of the cavity rod 509, a liquid inlet hole 5091 for filling water is arranged. At the position of the liquid inlet hole 5091 on the second support plate 5062, a cylindrical cavity 514 is arranged. The inner cavity of the cylindrical cavity 514 is communicated with the liquid inlet hole 5091. A liquid adding pipe 515 is connected to the inner cavity of the cylindrical cavity 514, and the liquid adding pipe 515 extends to the outside of the top cover 507. Below the cavity rod 509, a cleaning hole 5092 is arranged. On the lower half part of the cylindrical part of the inner cylinder shell 506, a liquid outlet hole 5063 is arranged; at the middle ring plate 505, a waste water pipe 516 is communicated.

[0051] Specifically, clean water is injected into the liquid adding pipe 515. The seal between the cylindrical cavity 514 and the cavity rod 509 is tight. The clean water enters the inside of the cavity rod 509 along the inner cavity of the cylindrical cavity 514 and the liquid inlet hole 5091, and then sprays out from the cleaning hole 5092. Since the cleaning hole 5092 is rotating, the clean water sprayed out from the cleaning hole 5092 is also rotating. When the crushed raw materials pass by the outside of the cleaning hole 5092, the clean water cleans the raw materials, and the water after cleaning flows to the outside from the liquid outlet hole 5063 and the waste water pipe 516.

[0052] A hydraulic cylinder 517 is provided on the bottom plate 501. The end of the telescopic shaft of the hydraulic cylinder 517 is provided with a lifting cylinder 518. The lifting cylinder 518 is slidably arranged in the columnar shell 504. A conical screen 519 is provided on the upper part of the lifting cylinder 518. Two sliding cylinders 520 are rotatably connected to the upper part of the conical screen 519. A sliding column 521 is slidably connected inside the sliding cylinder 520. A fourth spring 522 is sleeved on the sliding column 521 and inside the sliding cylinder 520. The two ends of the fourth spring 522 are respectively connected to the sliding column 521 and the sliding cylinder 520. The upper end of the sliding column 521 is hinged with a semi-circular plate 523. The middle part of the semi-circular plate 523 is hinged to the bottom of the middle ring plate 505. A stop block 524 for blocking the rotation of the semi-circular plate 523 is provided at the bottom of the middle ring plate 505. An air hole 5041 for passing dry gas is provided on the side of the columnar shell 504 and above the conical screen 519.

[0053] An inclined circular ring 525 is provided in the groove of the ring groove box 503. A discharge port 5031 is provided on the ring groove box 503 and at the bottom of the inclined circular ring 525.

[0054] Specifically, in the original state, the telescopic shaft of the hydraulic cylinder 517 is in the middle state, the lifting cylinder 518 is in the middle position, the fourth spring 522 is in a compressed state. The fourth spring 522 provides elastic force to keep the bottom of the sliding column 521 in contact with the bottom of the cavity of the sliding cylinder 520. The semi-circular plate 523 is in a horizontal state. A sealing ring is provided at the edge of the semi-circular plate 523. Therefore, the two semi-circular plates 523 seal the lower opening of the inner cylinder shell 506. The semi-circular plate 523 contacts the stop block 524. The stop block 524 prevents the center of the semi-circular plate 523 from rotating upward. Therefore, the raw materials can be fully rinsed above the semi-circular plate 523. Start the hydraulic cylinder 517 to make the telescopic shaft of the hydraulic cylinder 517 move upward. The sliding column 521 and the sliding cylinder 520 do not slide. The power is transmitted through the sliding column 521 and the sliding cylinder 520 to make the center of the semi-circular plate 523 rotate downward. The raw materials in the semi-circular plate 523 fall onto the conical screen 519. The residual moisture in the raw materials flows along the conical screen 519 to the outside. At the same time, the dry gas filled in the air hole 5041 fully dries the raw materials. Make the telescopic shaft of the hydraulic cylinder 517 move to the lower position. During this process, the two semi-circular plates 523 return to the horizontal state again for the next cleaning. The sliding column 521 slides in the sliding cylinder 520. The fourth spring 522 is compressed. The conical screen 519 is separated from the inner cylinder shell 506. The raw materials fall onto the inclined circular ring 525 in the ring groove box 503 along the inclined surface of the conical screen 519. The raw materials then flow out from the discharge port 5031 along the inclined circular ring 525 for recovery.

[0055] Working principle: Place the raw materials on the conveyor belt 203. The conveyor belt 203 drives the raw materials into the detection area. The magnetic detector 205 detects whether there is magnetic metal material in the raw materials. When the magnetic detector 205 detects that the raw materials do not contain magnetic metal, the double-headed cylinder 206 remains in the standby state. The push plate 207 supports the inclined plate 211 in the upper position. The first spring 210 is in the compressed state. The first baffle 208 is in the upper position. And the torsion spring 213 provides a torsional force to keep the rotary resistance plate 212 in the vertical state, so that the rotary resistance plate 212 blocks the notch 2011, facilitating the original to pass through the detection area smoothly.

[0056] When the magnetic detector 205 detects magnetic metal in the raw material, the double-headed cylinder 206 is started, and the telescopic shaft of the double-headed cylinder 206 drives the push plate 207 to move toward the notch 2011, pushing the raw material toward the notch 2011. At the same time, after the push plate 207 moves, the push plate 207 is separated from the inclined plate 211, and the spring 210 provides elastic force to drive the baffle 208 to move downward. When the baffle 208 moves to the lower position, the gap between the baffle 208 and the conveyor belt 203 is smaller than the minimum diameter of the raw material. Therefore, the material containing magnetic metal is placed between the two baffles 208, so that the push plate 207 can push all the raw materials containing magnetic metal out of the notch 2011. During this process, the dial table 215 on the baffle 208 drives the inclined bar 214 to rotate, so the baffle plate 212 rotates synchronously, which is convenient for the raw material to flow out of the notch 2011. At the same time, the telescopic shaft of the double-headed cylinder 206 drives the sliding link 217 to move synchronously, and the sliding link 217 is separated from the L sliding bar 218. The spring 220 provides elastic force to drive the long sliding bar 219 to move in the direction of the magnetic metal warehouse 223, and the connecting rod 221 provides transmission power to rotate the magnetic plate 222. At this time, the magnetic plate 222 is energized to make the magnetic plate 222 magnetic, and the side of the magnetic plate 222 close to the magnetic metal warehouse 223 is also tilted downward, the sliding bar 225 is separated from the top platform 227, and the spring 3 226 provides elastic force to drive the baffle 224 and the sliding bar 225 to move downward, so that the lower surface of the baffle 224 contacts the magnetic plate 222, and the push plate 207 pushes the raw material from the notch 2011 to the magnetic plate 222, and the magnetic plate 222 absorbs the magnetic metal, and the PET raw material slides along the magnetic plate 222 to the baffle 224; When the push plate 207 moves to the notch 2011, the sliding link 217 contacts the circular baffle 228, driving the circular baffle 228 and the long slide bar 219 to continue to move in the direction of the magnetic metal warehouse 223. Based on the above principle, the magnetic plate 222 continues to rotate, causing the side of the magnetic plate 222 close to the magnetic metal warehouse 223 to tilt upward, so that the PET in the magnetic plate 222 falls back onto the conveyor belt 203; when the push plate 207 returns to its original state, the magnetic plate 222 rotates back to its original position, even if the magnetic plate 222 is located on one side of the magnetic metal warehouse 223 and tilts downward, the top platform 227 supports the second slide bar 225, so that the second baffle 224 is separated from the lower surface of the magnetic plate 222, the magnetic plate 222 is powered off, the magnetic plate 222 is no longer magnetic, and the magnetic metal material in the magnetic plate 222 slides down the magnetic plate 222 into the magnetic metal warehouse 223.

[0057] The raw materials containing non-magnetic metals pass through the eddy current sorting component, and only the PET raw materials are left after the non-magnetic metals in the raw materials are removed. The PET raw materials then pass through the lifting component and enter the crushing component from the upper opening of the inner cylinder shell 506.

[0058] When the lifting component is in its original state, clean water is injected into the liquid adding pipe 515. The seal between the cylindrical cavity 514 and the cavity rod 509 is tight. The clean water flows along the inner cavity of the cylindrical cavity 514 and the liquid inlet hole 5091 into the interior of the cavity rod 509, and then sprays outwards from the cleaning holes 5092. Since the cleaning holes 5092 are rotating, the clean water sprayed outwards by the cleaning holes 5092 is also rotating. The telescopic shaft of the hydraulic cylinder 517 is in the middle state, the lifting cylinder 518 is in the middle position, and the fourth spring 522 is in a compressed state. The fourth spring 522 provides elastic force to keep the bottom of the sliding column 521 in contact with the inner bottom of the sliding cylinder 520. The semi-circular plate 523 is in a horizontal state, and a sealing ring is provided at the edge of the semi-circular plate 523. Therefore, the two semi-circular plates 523 seal the lower opening of the inner cylinder shell 506.

[0059] After the PET raw material enters the crushing component, the motor two 508 drives the cavity rod 509 to rotate. The cavity rod 509 drives the crushing impeller one 510 and the central main wheel 511 to rotate. The power is transmitted through the three star wheels 512. The crushing impeller two 513 rotates in the opposite direction to the crushing impeller one 510. The crushing impeller one 510 and the crushing impeller two 513 cut and crush the PET raw material. Subsequently, the crushed PET raw material falls onto the semi-circular plate 523 outside the cleaning holes 5092. The clean water cleans the raw material, and the cleaned water flows to the outside through the liquid outlet hole 5063 and the waste water pipe 516. Start the hydraulic cylinder 517 to make the telescopic shaft of the hydraulic cylinder 517 move upwards. The sliding column 521 and the sliding cylinder 520 do not slide. The power is transmitted through the sliding column 521 and the sliding cylinder 520 to make the center of the semi-circular plate 523 rotate downwards. The raw material in the semi-circular plate 523 falls onto the conical screen 519. No PET raw material is put into the upper opening of the inner cylinder shell 506. The residual moisture in the raw material flows to the outside along the conical screen 519. At the same time, the dry gas filled in the air holes 5041 fully dries the raw material. Make the telescopic shaft of the hydraulic cylinder 517 move to the lower position. During this process, the two semi-circular plates 523 return to the horizontal state again, and the semi-circular plate 523 contacts the stop block 524. The stop block 524 prevents the center of the semi-circular plate 523 from rotating upwards. The sliding column 521 slides in the sliding cylinder 520, and the fourth spring 522 is compressed. The conical screen 519 is separated from the inner cylinder shell 506. The raw material falls onto the inclined circular ring 525 in the ring groove box 503 along the inclined surface of the conical screen 519. The PET raw material then flows out from the discharge port 5031 along the inclined circular ring 525 for recycling.

Claims

1. A PET recycling device, comprising a base (1), characterized in that: Along the length direction of the base (1), a screening component, an eddy current separation component, a lifting component, and a crushing component are sequentially arranged; The screening component includes a casing (201) fixedly arranged on the base (1). Three rotating shafts (202) are rotatably arranged on the casing (201). A conveyor belt (203) is wound around the three rotating shafts (202) together. A motor one (204) is arranged on the side surface of the casing (201). The rotating shaft of the motor one (204) is connected to one rotating shaft (202). The upper two rotating shafts (202) are in the same plane. A magnetic detector (205) is arranged inside the casing (201) and between the upper two rotating shafts (202); On one side surface of the casing (201) and above the conveyor belt (203), a double-headed cylinder (206) is connected. The telescopic shaft of the double-headed cylinder (206) passes through the side surface of the casing (201), and one end of the telescopic shaft of the double-headed cylinder (206) is connected with a push plate (207). A notch (2011) is arranged on the other side surface of the casing (201) and at the position where the projection of the push plate (207) coincides; Above the casing (201) and on both sides of the double-headed cylinder (206), there are baffles one (208) for blocking materials. Slide bars one (209) are arranged on both sides of the baffle one (208). The slide bars one (209) are slidably arranged on the casing (201). A spring one (210) is sleeved on the slide bars one (209), and both sides of the spring one (210) are respectively connected with the baffle one (208) and the casing (201). On the side of the baffle one (208) close to the double-headed cylinder (206), there is an inclined plate (211) cooperating with the push plate (207); At the notch (2011) of the casing (201), a rotating resistance plate (212) is rotatably arranged, and a torsion spring (213) is sleeved on the rotating shaft of the rotating resistance plate (212). Both ends of the torsion spring (213) are respectively connected with the casing (201) and the rotating shaft of the rotating resistance plate (212). Two inclined strips (214) are arranged on the upper side of the rotating resistance plate (212). On the baffle one (208), there are two dial platforms (215) respectively driving the two inclined strips (214) to rotate; On one side surface of the casing (201) and below the double-headed cylinder (206), an L-shaped slide (216) is connected. At the other end of the telescopic shaft of the double-headed cylinder (206), a sliding connecting rod (217) is provided. The sliding connecting rod (217) penetrates through the L-shaped slide (216). An L-shaped slide bar (218) is slidably arranged on the L-shaped slide (216). The upper end of the L-shaped slide bar (218) contacts the sliding connecting rod (217). The lower end of the L-shaped slide bar (218) is connected to a long slide bar (219), and the long slide bar (219) is slidably arranged in the casing (201). A second spring (220) is sleeved outside the long slide bar (219). The two ends of the second spring (220) are respectively connected to the casing (201) and the long slide bar (219). The long slide bar (219) is hinged to the lower end of a connecting rod (221). The upper end of the connecting rod (221) is hinged to the middle part of a magnetic plate (222), and one side of the magnetic plate (222) is hinged below the notch (2011) of the casing (201). Below the other side of the magnetic plate (222), a magnetic metal reservoir (223) is provided. A second baffle (224) is slidably arranged on the magnetic plate (222) above the magnetic metal reservoir (223). Slide bars two (225) are respectively provided at the two ends of the second baffle (224). The slide bars two (225) are slidably arranged on the side surface of the magnetic plate (222). A third spring (226) is sleeved outside the slide bars two (225). The two ends of the third spring (226) are respectively connected to the magnetic plate (222) and the second baffle (224). A top platform (227) for driving the slide bars two (225) is provided on the magnetic metal reservoir (223).

2. The PET recycling device according to claim 1, wherein: The lower end of the sliding connecting rod (217) is sleeved on the long slide bar (219). A circular retaining platform (228) cooperating with the sliding connecting rod (217) is provided on the long slide bar (219).

3. A PET recycling device according to claim 2, characterized in that: The crushing assembly includes a bottom plate (501) fixedly arranged on the base (1). A support column (502) is vertically connected to the bottom plate (501). An annular groove box (503) is connected above the support column (502). A columnar shell (504) is connected to the annular groove box (503). A middle ring plate (505) is connected to the middle part of the columnar shell (504). An inner cylinder shell (506) is vertically provided near the central edge of the middle ring plate (505), and the opening of the inner cylinder shell (506) extends outside the upper plane of the columnar shell (504). A top cover (507) is connected to the upper plane of the columnar shell (504) and above the upper opening of the inner cylinder shell (506).

4. The PET recycling device according to claim 3, characterized in that: The lower surface of the top cover (507) is provided with a second motor (508). The rotating shaft of the second motor (508) is connected to a cavity rod (509). A first crushing impeller (510) is provided on the cavity rod (509). A central main wheel (511) is provided on the cavity rod (509) and below the first crushing impeller (510). A first support plate (5061) is provided at the middle part of the inner cylinder shell (506). Three star wheels (512) and a second crushing impeller (513) are rotatably provided on the first support plate (5061) evenly around the axis of the cavity rod (509). The star wheels (512) are in frictional engagement with the inner rings of the central main wheel (511) and the second crushing impeller (513) at the same time.

5. The PET recycling device according to claim 4, characterized in that: A second support plate (5062) is provided at the upper part of the inner cylinder shell (506). A liquid inlet hole (5091) for filling water is provided at the upper end of the cavity rod (509) and above the second support plate (5062). A cylindrical cavity (514) is provided on the second support plate (5062) and at the position of the liquid inlet hole (5091). The inner cavity of the cylindrical cavity (514) is communicated with the liquid inlet hole (5091). A liquid adding pipe (515) is connected to the inner cavity of the cylindrical cavity (514), and the liquid adding pipe (515) extends to the outside of the top cover (507). A cleaning hole (5092) is provided below the cavity rod (509). A liquid outlet hole (5063) is provided at the lower half part of the cylindrical part of the inner cylinder shell (506); A waste water pipe (516) is communicated at the middle ring plate (505).

6. The PET recycling device according to claim 5, characterized in that: A hydraulic cylinder (517) is provided on the bottom plate (501). The end part of the telescopic shaft of the hydraulic cylinder (517) is provided with a lifting cylinder (518). The lifting cylinder (518) is slidably arranged in the columnar shell (504). A conical screen (519) is provided at the upper part of the lifting cylinder (518). Two sliding cylinders (520) are rotatably connected to the upper part of the conical screen (519). A sliding column (521) is slidably connected to the inside of the sliding cylinder (520). A fourth spring (522) is sleeved on the sliding column (521) and inside the sliding cylinder (520), and both ends of the fourth spring (522) are connected to the sliding column (521) and the sliding cylinder (520) respectively. The upper end of the sliding column (521) is hinged with a semi-circular plate (523), and the middle part of the semi-circular plate (523) is hinged to the bottom of the middle ring plate (505). A stop block (524) for blocking the rotation of the semi-circular plate (523) is provided at the bottom of the middle ring plate (505). An air hole (5041) for passing dry gas is provided at the side part of the columnar shell (504) and above the conical screen (519).

7. A PET recycling device according to claim 6, characterized in that: There is an inclined circular ring (525) in the groove of the ring groove box (503). A discharge port (5031) is provided on the ring groove box (503) and at the bottom of the inclined circular ring (525).

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