PET (Polyethylene Terephthalate) recovery equipment

Abstract

The invention provides PET recovery equipment, and belongs to the technical field of PET, the PET recovery equipment comprises a base, and a screening assembly, an eddy current sorting assembly, a lifting assembly and a crushing assembly are sequentially arranged on the base in the length direction; the screening assembly comprises a machine shell and a conveying belt which are fixedly arranged on the base, and a magnetic detector is arranged in the machine shell; a double-head air cylinder is connected to one side surface of the machine shell, a push plate is connected to one end of a telescopic shaft of the double-head air cylinder, and a notch is formed in the position, coinciding with the projection of the push plate, of the other side surface of the machine shell. Baffles used for blocking materials are arranged above the machine shell and located on the two sides of the double-end air cylinder. The push plate moves towards the notch to push the raw materials towards the notch, and meanwhile, the baffles are driven to move downwards, so that the materials containing the magnetic metal are placed between the two baffles, and the push plate can push all the raw materials containing the magnetic metal out of the notch conveniently.

Description

Technical Field

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

[0002] In the natural environment, PET is extremely difficult to degrade. A large amount of discarded PET plastic products are piled up, becoming the main cause of "white pollution" and destroying the ecological balance. What's worse is that they will degrade into "microplastics" and enter the ecosystem and organisms, threatening the health of organisms. Therefore, recycling PET is of great significance, which not only reduces the amount of landfill, reduces the risk of pollution to soil and groundwater, but also makes the best use of it.

[0003] In the existing technology, the workflow covers classification, crushing, cleaning, drying and other links. In the classification stage, the metal materials mixed in the PET material must be removed. The commonly used eddy current separator can effectively separate a variety of non-magnetic metals such as aluminum and copper. However, when facing magnetic metals such as iron and nickel, the eddy current separator has limitations and it is difficult to accurately remove them from the PET material. This has also become a part of the process that needs to be optimized. Summary of the invention

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

[0005] The technical solution adopted to solve the above technical problems is: a PET recycling device, including a base, characterized in that: a screening component, an eddy current sorting component, a lifting component and a crushing component are arranged in sequence on the base along the length direction; the screening component includes a casing fixed on the base, three rotating shafts are rotatably arranged on the casing, and the three rotating shafts are wound around the conveyor belt together, a motor 1 is arranged on the side of the casing, the rotating shaft of the motor 1 is connected to a rotating shaft, 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; the casing A double-headed cylinder is connected to one side surface and located above the conveyor belt, 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 to a push plate, and a notch is provided on the other side surface of the casing and coincides with the projection of the push plate; baffles for blocking materials are provided above the casing and on both sides of the double-headed cylinder, and sliding rods are provided on both sides of the baffle, and the sliding rods are slidably arranged on the casing, and a spring is sleeved on the sliding rod, and both sides of the spring are respectively connected to the baffle and the casing, and an inclined plate cooperating with the push plate is provided on the side of the baffle close to the double-headed cylinder.

[0006] Furthermore, a baffle plate is rotatably provided at the notch on the casing, and a torsion spring is sleeved on the rotating shaft of the baffle plate, the two ends of the torsion spring are respectively connected to the casing and the rotating shaft of the baffle plate, two oblique bars are provided on the upper side of the baffle plate, and two dial tables are provided on the baffle plate for driving the two oblique bars to rotate respectively.

[0007] Furthermore, an L slide is connected to one side surface of the casing and located below the double-headed cylinder, a sliding link is provided at the other end of the telescopic shaft of the double-headed cylinder, the sliding link penetrates the L slide, an L slide is slidably provided on the L slide, the upper end of the L slide is in contact with the sliding link, the lower end of the L slide is connected to a long slide, and the long slide is slidably arranged in the casing, a spring 2 is provided on the outer sleeve of the long slide, the two ends of the spring 2 are respectively connected to the casing and the long slide, the long slide is hinged to the lower end of the connecting rod, the upper end of the connecting rod is hinged to the middle part of the magnetic plate, and one side of the magnetic plate is hinged below the notch of the casing.

[0008] Furthermore, a magnetic metal depot is provided below the other side of the magnetic plate, and a baffle is slidably provided on the magnetic plate above the magnetic metal depot, two slide bars are provided at both ends of the baffle, the two slide bars slide along the side of the magnetic plate, a spring three is provided on the outer sleeve of the two slide bars, the two ends of the spring three are respectively connected to the magnetic plate and the baffle, and a top platform for driving the two slide bars is provided on the magnetic metal depot.

[0009] Furthermore, the lower end of the sliding link is sleeved on the long sliding rod, and the long sliding rod is provided with a round stopper matched with the sliding link.

[0010] Furthermore, the crushing assembly includes a bottom plate fixed on the base, a pillar is vertically connected to the bottom plate, a ring groove box is connected above the pillar, a cylindrical shell is connected to the ring groove box, a middle ring plate is connected to the middle part of the cylindrical shell, an inner cylinder shell is vertically provided on the middle ring plate near the center edge, and the opening on the inner cylinder shell extends to the outside of the upper plane of the cylindrical shell, and a top cover is connected to the upper plane of the cylindrical shell and above the upper opening of the inner cylinder shell.

[0011] Furthermore, a motor 2 is provided on the lower surface of the top cover, a rotating shaft of the motor 2 is connected to the cavity rod, a crushing impeller 1 is provided on the cavity rod, a central main wheel is provided on the cavity rod and below the crushing impeller 1, a support plate 1 is provided in the middle part of the inner cylinder shell, three star wheels and a crushing impeller 2 are provided on the support plate 1 so as to rotate evenly around the axis of the cavity rod, and the star wheel simultaneously forms a friction fit with the inner ring of the central main wheel and the crushing impeller 2.

[0012] Furthermore, a support plate 2 is provided on the upper part of the inner cylinder shell, a liquid inlet hole for filling water is provided at the upper end of the cavity rod and above the support plate 2, a cylindrical cavity is provided on the support plate 2 and at the liquid inlet hole, the inner cavity of the cylindrical cavity is connected to the liquid inlet hole, the inner cavity of the cylindrical cavity is connected to a liquid adding pipe, and the liquid adding pipe extends to the outside of the top cover, a cleaning hole is provided below the cavity rod, and a liquid outlet hole is provided on the lower half of the cylinder of the inner cylinder shell; a wastewater pipe is connected to the middle ring plate.

[0013] Furthermore, a hydraulic cylinder is provided on the bottom plate, and a lifting cylinder is provided at the end of the telescopic shaft of the hydraulic cylinder. The lifting cylinder is slidably arranged in the columnar shell, and a conical screen is provided on the upper part of the lifting cylinder. The upper part of the conical screen is rotatably connected to two sliding cylinders, and the interior of the sliding cylinder is slidably connected to a sliding column, and a spring four is provided on the sliding column and located inside the sliding cylinder, and the two ends of the spring four are respectively connected to the sliding column and the sliding cylinder, a semicircular plate is hinged at the upper end of the sliding column, and the middle part of the semicircular plate is hinged to the bottom of the middle ring plate, and a block for blocking the rotation of the semicircular plate is provided at the bottom of the middle ring plate, and an air hole for passing dry gas is provided on the side of the columnar shell and located above the conical screen.

[0014] Furthermore, the annular groove box has an oblique circular ring in the groove, and a discharge port is provided on the annular groove box and at the bottom of the oblique circular ring.

[0015] The beneficial effects of the present invention compared with the prior art are: (1) When the magnetic detector of the screening component of the present invention detects that there is magnetic metal in the raw material, the telescopic shaft of the double-headed cylinder drives the push plate to move toward the notch, pushes the raw material toward the notch, and drives the baffle plate to move downward at the same time, so that the material containing the magnetic metal is placed between the two baffle plates, so that the push plate can push all the raw materials containing the magnetic metal out of the notch; (2) After the screening component of the present invention pushes the raw material containing the magnetic metal to the magnetic plate, the magnetic plate absorbs the magnetic metal, and the PET raw material slides along the magnetic plate to the baffle plate; when the push plate moves to the notch, the side of the magnetic plate close to the magnetic metal warehouse automatically tilts upward, and the PET in the magnetic plate falls back onto the conveyor belt, which has the effect of saving raw materials; (3 ) The magnetic plate of the screening assembly of the present invention rotates back to its original position, even if the magnetic plate is located on one side of the magnetic metal bin and tilts downward, the top platform supports the second slide bar, so that the baffle is separated from the lower surface of the magnetic plate, the magnetic plate is powered off, the magnetic plate is no longer magnetic, and the magnetic metal material in the magnetic plate slides along the magnetic plate into the magnetic metal bin; (4) The crushing assembly of the present invention automatically cuts, crushes, cleans and dries the PET raw material, and the rotating cleaning water flow cleans the PET raw material more cleanly, and 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 flows out from the discharge port along the inclined circular ring for easy recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the front side of an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the back side of an embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the casing of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the internal cross section of the casing of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of the screening component of the present invention.

[0021] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle.

[0022] Figure 7 yes Figure 5 A partial enlarged view of point B in the middle.

[0023] Figure 8 yes Figure 5 A partial enlarged view of point C in the middle.

[0024] Fig. 9 It is a structural schematic diagram of the transfer resistance plate of the present invention.

[0025] Fig.10 It is a structural schematic diagram of the crushing assembly of the present invention.

[0026] Fig.11 It is a structural schematic diagram of the cross section of the inner cylinder shell of the crushing assembly of the present invention.

[0027] Fig.12 It is a schematic diagram of the internal structure of the crushing component of the present invention.

[0028] Fig.13 It is a schematic structural diagram of the installation of a crushing impeller of the present invention.

[0029] Fig.14 yes Fig.13 A partial enlarged view of point D in the middle.

[0030] Fig.15 It is a structural schematic diagram of the cross section of the crushing component of the present invention.

[0031] Fig.16 yes Fig.15 A partial enlarged view of point E in the middle.

[0032] Fig.17 yes Fig.15 A partial enlarged view of point F in the middle.

[0033] Figure numbers: 1-base; 2-screening component; 3-eddy current sorting component; 4-lifting component; 5-crushing component; 201-casing; 2011-notch; 202-rotating shaft; 203-conveyor belt; 204-motor one; 205-magnetic detector; 206-double-headed cylinder; 207-push plate; 208-baffle plate; 209-slide bar one; 210-spring one; 211-inclined plate; 212-rotation resistance plate; 213-torsion spring; 214-inclined bar; 215-dial table; 216-L slide table; 217-sliding connecting rod; 218-L slide bar; 219-long slide bar; 220-spring two; 221-connecting rod; 222-magnetic plate; 223-magnetic metal warehouse; 224-baffle plate; 225-slide bar two; 226-spring three; 227-top table; 228-round Baffle; 501-bottom plate; 502-pillar; 503-ring groove box; 5031-discharge port; 504-columnar shell; 5041-air hole; 505-middle ring plate; 506-inner cylinder shell; 5061-support plate 1; 5062-support plate 2; 5063-liquid outlet; 507-top cover; 508-motor 2; 509-cavity rod; 5091-liquid inlet; 5092-cleaning hole ;510-crushing impeller one;511-central main wheel;512-star wheel;513-crushing impeller two;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 four;523-semicircular plate;524-block;525-oblique circular ring. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0035] like Figures 1 to 17 As shown, a PET recycling device includes a base 1, on which a screening component for screening magnetic metals, an eddy current sorting component for screening magnetic metals, a lifting component and a crushing component are arranged in sequence along the length direction; the screening component includes a casing 201 fixed on the base 1, three rotating shafts 202 are rotatably arranged on the casing 201, and the three rotating shafts 202 are wound around a conveyor belt 203 together, a motor 204 is arranged on the side of the casing 201, and the rotating shaft of the motor 204 is connected to a rotating shaft 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 casing 201 and between the upper two rotating shafts 202.

[0036] Specifically, the motor 204 drives a rotating shaft 202 to rotate, thereby driving the conveyor belt 203 to operate, placing the raw materials on the conveyor belt 203, and the conveyor belt 203 drives the raw materials into the detection area, and the magnetic detector 205 detects whether there is magnetic metal material in the raw materials.

[0037] A double-headed cylinder 206 is connected to one side surface of the casing 201 and is located above the conveyor belt 203. The telescopic axis of the double-headed cylinder 206 passes through the side surface of the casing 201, and one end of the telescopic axis of the double-headed cylinder 206 is connected to a push plate 207. A notch 2011 is provided on the other side surface of the casing 201 and coincides with the projection of the push plate 207; baffles 208 for blocking materials are provided above the casing 201 and on both sides of the double-headed cylinder 206, that is, the two baffles 208 are located in the detection area on the conveyor belt 203, and sliding rods 209 are provided on both sides of the baffle 208, and the sliding rod 209 is slidably arranged on the casing 201, and a spring 210 is sleeved on the sliding rod 209, and the two sides of the spring 210 are respectively connected to the baffle 208 and the casing 201, and an inclined plate 211 cooperating with the push plate 207 is provided on the side of the baffle 208 close to the double-headed cylinder 206.

[0038] Specifically, 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 to push the raw material out of 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.

[0039] Considering that the raw materials do not flow out of the notch 2011 when the conveyor belt 203 is in normal operation, a rotating block plate 212 is rotatably provided at the notch 2011 on the housing 201, and a torsion spring 213 is sleeved on the rotating shaft of the rotating block plate 212, and the two ends of the torsion spring 213 are respectively connected to the housing 201 and the rotating shaft of the rotating block plate 212, and two inclined bars 214 are provided on the upper side of the rotating block plate 212, and two dialing platforms 215 are provided on the baffle plate 208 to respectively drive the two inclined bars 214 to rotate.

[0040] Specifically, when the baffle 208 is in the upper position, the torsion spring 213 provides a torsional force to keep the inclined bar 214 and the notch 2011 overlapped, thereby preventing the raw material from flowing out of the notch 2011; when the baffle 208 moves downward, the dial 215 on the baffle 208 drives the inclined bar 214 to rotate, so the baffle plate 212 rotates synchronously, facilitating the raw material to flow out of the notch 2011.

[0041] Considering that when the raw material flows out from the gap 2011, some PET material is still contained in the raw material, and this part of PET material needs to be selected out. An L slide 216 is connected to the surface of one side of the casing 201 and located below the double-headed cylinder 206. A sliding link 217 is provided at the other end of the telescopic shaft of the double-headed cylinder 206. The sliding link 217 penetrates the L slide 216. An L slide 218 is slidably provided on the L slide 216. The upper end of the L slide 218 contacts the sliding link 217. The lower end of the L slide 218 is connected to a long slide 219, and the long slide 219 is slidably arranged in the casing 201. A spring 220 is provided on the outer sleeve of the long slide 219. The two ends of the spring 220 are respectively connected to the casing 201 and the long slide 219. The long slide 219 is hinged to the lower end of the connecting rod 221, and the upper end of the connecting rod 221 is hinged to the middle part of the magnetic plate 222, and one side of the magnetic plate 222 is hinged to the bottom of the notch 2011 of the casing 201.

[0042] A magnetic metal depot 223 is provided at the lower part of the other side of the magnetic plate 222, and a baffle 224 is slidably provided on the magnetic plate 222 above the magnetic metal depot 223, and two slide bars 225 are provided at both ends of the baffle 224 respectively, and the two slide bars 225 are slidably provided with the side of the magnetic plate 222, and a spring 3 226 is provided on the outer sleeve of the two slide bars 225, and the two ends of the spring 3 226 are respectively connected to the magnetic plate 222 and the baffle 224, and a top platform 227 for driving the two slide bars 225 is provided on the magnetic metal depot 223.

[0043] The lower end of the sliding link 217 is sleeved on the long sliding rod 219 , and the long sliding rod 219 is provided with a round stop 228 that cooperates with the sliding link 217 .

[0044] Specifically, when the push plate 207 does not move, the sliding link 217 contacts the L slide bar 218, at which time the spring 220 is in a compressed state, and the magnetic plate 222 is tilted downward on the side close to the magnetic metal storage 223; 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 link 217 to move synchronously, and the sliding link 217 is separated from the L slide bar 218, and the spring 220 provides elastic force to drive the long slide bar 219 The magnetic plate 222 is moved toward the direction of the magnetic metal storage 223, and the connecting rod 221 provides transmission power to rotate the magnetic plate 222. At this time, the magnetic plate 222 is energized, so that the magnetic plate 222 has magnetism, and the side of the magnetic plate 222 close to the magnetic metal storage 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 is in contact with the magnetic plate 222. When the push plate 207 is in contact with the magnetic plate 222, the push plate 207 pushes the raw material from the notch 2011 to the magnetic plate 222, and the magnetic plate 222 attracts the magnetic metal, and the PET 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 sliding rod 219 to continue to move toward the direction of the magnetic metal warehouse 223. Based on the above principle, the magnetic plate 222 continues to rotate, so that the side of the magnetic plate 222 close to the magnetic metal warehouse 223 tilts upward, so the PET in the magnetic plate 222 falls back onto the conveyor belt 203; when the push plate 207 is restored to its original state, the magnetic plate 222 rotates to its original position again, the 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 along the magnetic plate 222 to the magnetic metal warehouse 223.

[0045] The raw materials containing non-magnetic metals pass through the eddy current sorting component to remove the non-magnetic metals in the raw materials, and then move to the lifting component. The lifting component 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 on the two rotating shafts. One of the rotating shafts and a rotating shaft 202 are wound together with a synchronous belt. Therefore, when the motor 1 204 drives the rotating shaft 202 to rotate, the conveyor belt of the lifting component rotates synchronously, and the conveyor belt of the lifting component transports the PET raw materials to the crushing component.

[0046] The crushing assembly includes a bottom plate 501 fixed on the base 1, a pillar 502 is vertically connected to the bottom plate 501, a ring groove box 503 is connected above the pillar 502, a columnar shell 504 is connected to the ring 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 on the middle ring plate 505 near the center edge, and the opening of the inner cylinder shell 506 extends to the outside of the upper plane of the columnar shell 504, and 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.

[0047] A motor 2 508 is provided on the lower surface of the top cover 507, and a rotating shaft of the motor 2 508 is connected to the cavity rod 509. A crushing impeller 1 510 is provided on the cavity rod 509. A central main wheel 511 is provided on the cavity rod 509 and below the crushing impeller 1 510. A support plate 1 5061 is provided in the middle of the inner cylinder shell 506. Three star wheels 512 and a crushing impeller 2 513 are provided on the support plate 1 5061 so as to rotate evenly around the axis of the cavity rod 509, and the star wheel 512 forms a friction fit with the inner rings of the central main wheel 511 and the crushing impeller 2 513 at the same time.

[0048] Specifically, the raw materials in the lifting device enter from the upper opening of the inner cylinder shell 506, the motor 2 508 drives the cavity rod 509 to rotate, the cavity rod 509 drives the crushing impeller 1 510 and the central main wheel 511 to rotate, and the power is transmitted through the three star wheels 512, the crushing impeller 2 513 rotates in the opposite direction to the crushing impeller 1 510, and the crushing impeller 1 510 and the crushing impeller 2 513 cut and crush the raw materials.

[0049] A second support plate 5062 is provided on the upper portion 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 liquid inlet hole 5091, the inner cavity of the cylindrical cavity 514 is connected to the liquid inlet hole 5091, the inner cavity of the cylindrical cavity 514 is connected to a liquid adding pipe 515, 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, and a liquid outlet hole 5063 is provided on the lower half of the cylinder of the inner cylinder shell 506; a waste water pipe 516 is connected to the middle ring plate 505.

[0050] Specifically, clean water is injected into the liquid adding pipe 515, and the cylindrical cavity 514 and the cavity rod 509 are tightly sealed. The clean water flows into the cavity rod 509 along the inner cavity of the cylindrical cavity 514 and the liquid inlet hole 5091, and then sprays outward from the cleaning hole 5092. Since the cleaning hole 5092 is rotating, the clean water sprayed outward from the cleaning hole 5092 is also rotating. When the crushed raw materials pass through the outside of the cleaning hole 5092, the clean water cleans the raw materials, and the cleaned water flows to the outside from the liquid outlet hole 5063 and the waste water pipe 516.

[0051] A hydraulic cylinder 517 is provided on the bottom plate 501, and a lifting cylinder 518 is provided at the end of the telescopic shaft of the hydraulic cylinder 517. The lifting cylinder 518 is slidably arranged in the cylindrical shell 504, and a conical screen 519 is provided on the upper part of the lifting cylinder 518. The upper part of the conical screen 519 is rotatably connected to two slide cylinders 520, and a slide column 521 is slidably connected inside the slide cylinder 520. A spring four 522 is sleeved on the slide column 521 and located inside the slide cylinder 520, and the two ends of the spring four 522 are respectively connected to the slide column 521 and the slide cylinder 520, and a semicircular plate 523 is hinged at the upper end of the slide column 521, and the middle part of the semicircular plate 523 is hinged to the bottom of the middle ring plate 505, and a stopper 524 for blocking the rotation of the semicircular plate 523 is provided at the bottom of the middle ring plate 505, and an air hole 5041 for passing dry gas is provided on the side of the cylindrical shell 504 and located above the conical screen 519.

[0052] An oblique circular ring 525 is formed in the groove of the annular groove box 503 , and a discharge port 5031 is formed on the annular groove box 503 and at the bottom of the oblique circular ring 525 .

[0053] Specifically, in the original state, the telescopic axis of the hydraulic cylinder 517 is in the middle state, the lifting cylinder 518 is in the middle position, the spring four 522 is in a compressed state, and the spring four 522 provides elastic force to keep the bottom of the sliding column 521 in contact with the bottom of the sliding cylinder 520 cavity, the semicircular plate 523 is in a horizontal state, and a sealing ring is provided at the edge of the semicircular plate 523, so the two semicircular plates 523 seal the lower opening of the inner cylinder shell 506, the semicircular plate 523 is in contact with the stopper 524, and the stopper 524 prevents the center of the semicircular plate 523 from rotating upward, so the raw material can be fully rinsed above the semicircular plate 523. Start the hydraulic cylinder 517, so that the telescopic shaft of the hydraulic cylinder 517 moves upward, the sliding column 521 and the sliding cylinder 520 do not slide, and the power is transmitted through the sliding column 521 and the sliding cylinder 520 to make the center of the semicircular plate 523 rotate downward, and the raw materials in the semicircular plate 523 fall onto the conical screen 519. The residual moisture in the raw materials flows to the outside along the conical screen 519, and the dry gas filled in the air hole 5041 fully dries the raw materials. The telescopic shaft of the hydraulic cylinder 517 moves to the lower position. During this process, the two semicircular plates 523 return to the horizontal state for the next cleaning. The sliding column 521 slides in the sliding cylinder 520, the spring four 522 is compressed, the conical screen 519 is separated from the inner cylinder shell 506, and the raw material falls along the inclined surface of the conical screen 519 into the oblique circular ring 525 in the ring groove box 503. The raw material then flows out from the discharge port 5031 along the oblique circular ring 525 for recovery.

[0054] Working principle: the raw materials are placed on the conveyor belt 203, the conveyor belt 203 drives the raw materials into the detection area, and the magnetic detector 205 detects whether there are magnetic metal materials in the raw materials. When the magnetic detector 205 detects that the raw materials do not contain magnetic metals, the double-headed cylinder 206 remains in a standby state, the push plate 207 supports the inclined plate 211 in an upper position, the spring 210 is in a compressed state, the baffle plate 208 is in an upper position, and the torsion spring 213 provides a torsional force to keep the transfer resistance plate 212 in a vertical state, so that the transfer resistance plate 212 blocks the gap 2011, so that it can pass through the detection area smoothly.

[0055] 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 1 210 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 facilitates 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 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 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 slide bar 225, so that the 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.

[0056] 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.

[0057] When the lifting assembly is in its original state, clean water is injected into the liquid adding pipe 515. The cylindrical cavity 514 and the cavity rod 509 are tightly sealed. The clean water enters the cavity rod 509 along the inner cavity of the cylindrical cavity 514 and the liquid inlet hole 5091, and then sprays outward from the cleaning hole 5092. Since the cleaning hole 5092 is rotating, the clean water sprayed outward from the cleaning hole 5092 is also rotating. The telescopic shaft of the hydraulic cylinder 517 is in an intermediate state, the lifting cylinder 518 is in an intermediate position, and the spring four 522 is in a compressed state. The spring four 522 provides elastic force to keep the bottom of the sliding column 521 in contact with the bottom of the sliding cylinder 520 cavity. The semicircular plate 523 is in a horizontal state, and a sealing ring is provided at the edge of the semicircular plate 523, so the two semicircular plates 523 seal the lower opening of the inner cylinder shell 506.

[0058] After the PET raw material enters the crushing assembly, the motor 2 508 drives the cavity rod 509 to rotate, and the cavity rod 509 drives the crushing impeller 1 510 and the central main wheel 511 to rotate, and the power is transmitted through the three star wheels 512, and the crushing impeller 2 513 rotates in the opposite direction to the crushing impeller 1 510, and the crushing impeller 1 510 and the crushing impeller 2 513 cut and crush the PET raw material. Then the crushed PET raw material falls onto the semicircular plate 523 through the outside of the cleaning hole 5092, and the clean water cleans the raw material, and the cleaned water flows to the outside from the liquid outlet 5063 and the waste water pipe 516. The hydraulic cylinder 517 is started to move the telescopic shaft of the hydraulic cylinder 517 upward, and 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 rotate the center of the semicircular plate 523 downward. The raw material in the semicircular plate 523 falls onto the conical screen 519, and the opening on the inner cylinder shell 506 no longer puts PET raw material. 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 hole 5041 fully dries the raw material. The telescopic shaft of the hydraulic cylinder 517 moves to the lower position. During this process, the two semicircular plates 523 return to the horizontal state, and the semicircular plates 523 contact the block 524. The block 524 prevents the center of the semicircular plates 523 from rotating upward, and the slide column 521 slides in the slide cylinder 520, the spring four 522 is compressed, the conical screen 519 is separated from the inner cylinder shell 506, and the raw material falls along the inclined surface of the conical screen 519 into the oblique ring 525 in the ring groove box 503, and the PET raw material flows out from the discharge port 5031 along the oblique ring 525 for recovery.

Claims

1. A PET recycling device, comprising a base (1), characterized in that: The base (1) is provided with a screening component, an eddy current sorting component, a lifting component and a crushing component in sequence along the length direction; The screening component comprises a housing (201) fixedly mounted on a base (1); three rotating shafts (202) are rotatably mounted on the housing (201); the three rotating shafts (202) are wound around a conveyor belt (203); a motor (204) is mounted on a side of the housing (201); a rotating shaft of the motor (204) is connected to a rotating shaft (202); two upper rotating shafts (202) are located in the same plane; and a magnetic detector (205) is mounted inside the housing (201) and between the two upper rotating shafts (202); A double-headed cylinder (206) is connected to one side surface of the casing (201) and is located above the conveyor belt (203); a telescopic shaft of the double-headed cylinder (206) passes through the side surface of the casing (201); one end of the telescopic shaft of the double-headed cylinder (206) is connected to a push plate (207); and a notch (211) is provided on the other side surface of the casing (201) where it overlaps with the projection of the push plate (207); Baffles (208) for blocking materials are provided above the casing (201) and on both sides of the double-headed cylinder (206). Slide bars (209) are provided on both sides of the baffles (208). The slide bars (209) are slidably arranged on the casing (201). A spring (210) is sleeved on the slide bars (209). Both sides of the spring (210) are connected to the baffles (208) and the casing (201) respectively. A slanted plate (211) cooperating with the push plate (207) is provided on the side of the baffles (208) close to the double-headed cylinder (206).

2. A PET recovery device according to claim 1, characterized in that: A rotation resistance plate (212) is rotatably provided at the notch (2011) on the housing (201), and a torsion spring (213) is sleeved on the rotation shaft of the rotation resistance plate (212), and the two ends of the torsion spring (213) are respectively connected to the housing (201) and the rotation shaft of the rotation resistance plate (212), and two inclined bars (214) are provided on the upper side of the rotation resistance plate (212), and two dialing platforms (215) are provided on the baffle plate (208) for respectively driving the two inclined bars (214) to rotate.

3. A PET recovery device according to claim 2, characterized in that: An L slide table (216) is connected to a side surface of the housing (201) and is located below the double-headed cylinder (206); a sliding link (217) is provided at the other end of the telescopic shaft of the double-headed cylinder (206); the sliding link (217) penetrates through the L slide table (216); an L slide bar (218) is slidably provided on the L slide table (216); the upper end of the L slide bar (218) contacts the sliding link (217); and the lower end of the L slide bar (218) is connected to a long slide bar (219). , and a long sliding rod (219) is slidably arranged in the housing (201), a second spring (220) is arranged on the outer sleeve of the long sliding rod (219), two ends of the second spring (220) are respectively connected to the housing (201) and the long sliding rod (219), the long sliding 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), and one side of the magnetic plate (222) is hinged to the lower part of the notch (2011) of the housing (201).

4. A PET recovery device according to claim 3, characterized in that: A magnetic metal storehouse (223) is provided below the other side of the magnetic plate (222), and a baffle (224) is slidably provided on the magnetic plate (222) above the magnetic metal storehouse (223), two sliding rods (225) are provided at both ends of the baffle (224), the two sliding rods (225) are slidably provided on the side of the magnetic plate (222), a spring (226) is provided on the outer sleeve of the two sliding rods (225), and the two ends of the spring (226) are respectively connected to the magnetic plate (222) and the baffle (224), and a top platform (227) for driving the two sliding rods (225) is provided on the magnetic metal storehouse (223).

5. A PET recovery device according to claim 4, characterized in that: The lower end of the sliding link (217) is sleeved on the long sliding rod (219), and the long sliding rod (219) is provided with a round stop (228) that cooperates with the sliding link (217).

6. A PET recovery device according to claim 5, characterized in that: The crushing assembly comprises a bottom plate (501) fixed on a base (1), a pillar (502) being vertically connected to the bottom plate (501), a ring groove box (503) being connected above the pillar (502), a columnar shell (504) being connected to the ring groove box (503), a middle ring plate (505) being connected to the middle portion of the columnar shell (504), an inner cylinder shell (506) being vertically provided near the center edge of the middle ring plate (505), an upper opening of the inner cylinder shell (506) extending to the outside of the upper plane of the columnar shell (504), and a top cover (507) being connected to the upper plane of the columnar shell (504) and located above the upper opening of the inner cylinder shell (506).

7. A PET recovery device according to claim 6, characterized in that: A second motor (508) is provided on the lower surface of the top cover (507), the rotating shaft of the second motor (508) is connected to the cavity rod (509), a 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 crushing impeller (510), a support plate (5061) is provided in the middle of the inner cylinder shell (506), three star wheels (512) and a second crushing impeller (513) are provided on the support plate (5061) so as to rotate evenly around the axis of the cavity rod (509), and the star wheel (512) simultaneously forms a friction fit with the inner rings of the central main wheel (511) and the second crushing impeller (513).

8. A PET recovery device according to claim 7, characterized in that: A second support plate (5062) is provided at the upper portion of the inner cylindrical shell (506); a liquid inlet hole (5091) for filling water is provided at the upper end of the cavity rod (509) and located above the second support plate (5062); a cylindrical cavity (514) is provided on the second support plate (5062) and located at the liquid inlet hole (5091); the inner cavity of the cylindrical cavity (514) is connected to the liquid inlet hole (5091); the inner cavity of the cylindrical cavity (514) is connected to a liquid adding pipe (515), 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); and a liquid outlet hole (5063) is provided at the lower half of the cylinder of the inner cylindrical shell (506); and a waste water pipe (516) is connected to the middle ring plate (505).

9. A PET recovery device according to claim 8, characterized in that: The bottom plate (501) is provided with a hydraulic cylinder (517), the telescopic shaft end of the hydraulic cylinder (517) is provided with a lifting cylinder (518), the lifting cylinder (518) is slidably arranged in the columnar shell (504), the upper part of the lifting cylinder (518) is provided with a conical screen (519), the upper part of the conical screen (519) is rotatably connected to two slide cylinders (520), the interior of the slide cylinder (520) is slidably connected to a sliding column (521), and a spring (4) is sleeved on the sliding column (521) and located inside the slide cylinder (520). 522), and the two ends of the spring four (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 semicircular plate (523), and the middle part of the semicircular plate (523) is hinged to the bottom of the middle ring plate (505), and the bottom of the middle ring plate (505) is provided with a stopper (524) for blocking the rotation of the semicircular plate (523), and the side of the columnar shell (504) and located above the conical screen (519) is provided with an air hole (5041) for passing the dry gas.

10. A PET recovery device according to claim 9, characterized in that: The groove of the annular groove box (503) includes an oblique circular ring (525) in the groove, and a discharge port (5031) is provided on the annular groove box (503) and at the bottom of the oblique circular ring (525).

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