Low-value plastic recovery system, device and method

Abstract

The invention discloses a low-value plastic recovery system, device and method, and relates to the technical field of low-value plastic recovery, the low-value plastic recovery system comprises a solid-liquid separation unit, a classification unit and a compression unit which are arranged in sequence; the solid-liquid separation unit is used for separating liquid in the low-value plastic and removing garbage at the same time; the classifying unit is used for classifying the low-value plastics after the liquid is separated according to materials; and the compression unit compresses the low-value plastic and forms block masses, the compression process comprises the step of packaging the block masses, and the compression unit further comprises a compression box and a discharging port formed in one end of the compression box. According to the low-value plastic recycling system, device and method, through the arrangement of the solid-liquid separation unit, the classification unit, the compression unit and the like, the recycling quality is improved, meanwhile, compression and packaging of low-value plastic are integrally operated, intermediate processes are reduced, the equipment use cost is reduced, the situation of looseness in the storage and transportation process is avoided, and the recycling efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of low-value plastic recycling, and in particular to a low-value plastic recycling system, device and method. Background Art

[0002] Low-value plastics refer to plastic waste of lower value generated during the plastic recycling and regeneration process, but their recycling has important significance for environmental protection and resource conservation.

[0003] During the recycling process, a large amount of low-value plastics often need to be squeezed into blocks for storage and transportation. However, in the prior art, the recycling device for low-value plastics has a simple structure, a single function, and is not compressed tightly enough, and its efficiency needs to be improved.

[0004] Therefore, it is necessary to propose a low-value plastic recycling system, device and method to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a low-value plastic recycling system, device and method to solve the problems in the prior art that the low-value plastic recycling device has a simple structure, a single function, is not compressed tightly enough, and has a need to improve its efficiency.

[0006] To achieve the above object, the present invention provides the following technical solution: a low-value plastic recycling system, comprising a solid-liquid separation unit, a classification unit and a compression unit arranged in sequence;

[0007] Solid-liquid separation unit, used to separate liquid from low-value plastics and remove garbage at the same time;

[0008] A classification unit is used to classify the low-value plastics after the liquid is separated according to the material;

[0009] A compression unit compresses the low value plastic and forms briquettes, wherein the compression process includes packaging of the briquettes.

[0010] The present invention also discloses a low-value plastic recycling device, which is applied to the above-mentioned low-value plastic recycling system, and also includes a compression box and a discharge port arranged at one end of the compression box, a compression plate for compressing low-value plastic is slidably arranged inside the compression box, a support bar is fixedly connected to one end of the compression box close to the discharge port, and the support bar is used to hold open the packaging bag, a limiting square frame is arranged at one end of the compression box close to the discharge port, and the limiting square frame surrounds the outside of the compression box, and a frame-shaped gap is formed between the limiting square frame and the outer wall of the compression box for the packaging bag to pass through, a square groove is opened on the inner wall of the limiting square frame, and a first air bag is fixedly connected to the inside of the square groove, and the packaging bag is positioned when the first air bag is inflated.

[0011] Preferably, the number of the support bars is four, and the four support bars are respectively distributed at the four corners of the compression box.

[0012] Preferably, both ends of the bottom of the compression box are fixedly connected with vertical plates, the end of the compression box close to the discharge port is fixedly connected to the packing table, the limiting frame is fixedly connected to the upper surface of the packing table, a sliding channel is opened on the packing table, a slider is slidingly arranged inside the sliding channel, the top of the slider is fixedly connected with a baffle, a side of the baffle close to the compression box is fixedly connected with a conveying plate, and the conveying plate is located at the bottom end of the baffle.

[0013] Preferably, a first electric push rod is fixedly connected to the bottom of the packing table, and the sliding block is fixedly connected to the telescopic end of the first electric push rod.

[0014] Preferably, one end of the compression box away from the discharge port is fixedly connected to a second electric push rod, and the compression plate is fixedly connected to the telescopic end of the second electric push rod.

[0015] Preferably, a through groove is provided on the top of the compression box, and the through groove is close to the limiting frame, a limiting plate is slidably provided inside the through groove, a bracket is fixedly connected to the top of the compression box, a third electric push rod is fixedly connected to the upper surface of the bracket, a through hole is provided on the bracket for the telescopic end of the third electric push rod to pass through, and the limiting plate is fixedly connected to the telescopic end of the third electric push rod.

[0016] Preferably, a feed groove is provided on the top of the compression box, a feed barrel is fixedly connected to the upper surface of the compression box, the feed barrel is connected to the interior of the compression box through the feed groove, and a second airbag is fixedly connected to the inner wall of the feed barrel.

[0017] Preferably, a pump body is fixedly connected to the outer wall of the compression box, and the pump body has two air outlet ends and two air inlet ends, one of the air outlet ends is connected with a second air duct, one end of the second air duct is connected with the second air bag, the other end of the second air duct is connected with the first air bag, and a first solenoid valve is installed at one end of the second air duct close to the second air bag, and a second solenoid valve is installed at one end of the second air duct close to the first air bag, the other air outlet end is connected with the factory air treatment duct, one of the air inlet ends is connected with the first air duct, one end of the first air duct away from the pump body is connected with the interior of the compression box, and the other air inlet end is connected with the external atmospheric environment, and electric control valves are installed on both the air outlet end and the air inlet end.

[0018] The present invention also discloses a low-value plastic recycling method, which is applied to the above-mentioned low-value plastic recycling device and further includes the following operating steps:

[0019] S1, compression, forming a partition space inside the compression box and compressing the low-value plastic into a mass;

[0020] S2, packing, pushing the lumps into the packing bags that have been expanded;

[0021] S3, take out the material, take out the packing bag together with the agglomerates.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The present invention improves the recycling quality by setting up a solid-liquid separation unit, a classification unit and a compression unit, and at the same time, the compression and packaging of low-value plastics are integrated to reduce intermediate processes, reduce equipment use costs, avoid looseness during storage and transportation, and improve recycling efficiency;

[0024] 2. By setting up the compression box, support bar and first airbag and other structures, the functions of compression and packaging are realized, and the packaging bag can be supported and positioned at the same time, so that it is convenient to pack directly after compression, and the packaging bag will not be loose, thereby improving the recycling efficiency;

[0025] 3. By setting up structures such as a limit plate and a third electric push rod, when low-value plastic is compressed, the limit plate will separate the inside of the compression box and cooperate with the compression plate to facilitate the compression operation;

[0026] 4. The support structure formed by the four support bars makes the internal shape of the packing bag consistent with that of the compression box, which is convenient for quick packing, and the support bars can be pulled out from the inside of the packing bag after packing is completed;

[0027] 5. By arranging the pump body, the first air duct and other structures, during the compression process, the pump body sucks the gas inside the compression box, making the compression more compact;

[0028] 6. Control the telescopic end of the second electric push rod to continue to extend quickly, push the mass into the packing bag, and realize the rapid transition between compression and packing, which can prevent the mass from deforming or the plastic outside the mass from falling off. At the same time, under the limiting effect of the baffle, the mass can be shaped once inside the packing bag;

[0029] 7. By setting up a conveying plate, the bottom of the packing bag is supported when the mass is pushed into the packing bag, and after the packing is completed, the mass can be supported and transported to reduce the workload of the operator;

[0030] 8. The second airbag is inflated and deflated repeatedly, so that the second airbag produces a shaking effect, achieving the effect of rapid dredging, and the feeding speed can also be adjusted by controlling the expansion degree of the second airbag;

[0031] 9. The pump body can control the expansion state of the first airbag and the second airbag, and can also suck the gas inside the compression box to improve the utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the low-value plastic recycling system of the present invention.

[0033] Figure 2 It is a schematic structural diagram of the low-value plastic recycling device of the present invention.

[0034] Figure 3 It is a schematic diagram of the compression box and the limiting frame structure of the present invention.

[0035] Figure 4 It is a schematic diagram of the limiting frame and frame-type gap structure of the present invention.

[0036] Figure 5 It is a schematic diagram of the structure of the baffle and the conveying plate of the present invention.

[0037] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure in the middle.

[0038] Figure 7 It is a schematic diagram of the compression box and through groove structure of the present invention.

[0039] Figure 8 It is a schematic diagram of the limiting frame and the first airbag structure of the present invention.

[0040] In the figure: 1. compression box; 2. support bar; 3. discharge port; 4. limit square frame; 5. first air bag; 6. packing table; 7. baffle; 8. conveying plate; 9. sliding channel; 10. slider; 11. first electric push rod; 12. second electric push rod; 13. compression plate; 14. vertical plate; 15. through groove; 16. limit plate; 17. bracket; 18. third electric push rod; 19. feed trough; 20. feed barrel; 21. second air bag; 22. pump body; 23. frame gap; 24. first air duct; 25. second air duct; 26. first solenoid valve; 27. second solenoid valve; 28. square groove. DETAILED DESCRIPTION

[0041] The present invention provides Figure 1 A low-value plastic recycling system shown includes a solid-liquid separation unit, a classification unit and a compression unit arranged in sequence;

[0042] The solid-liquid separation unit is equipped with a separation rack and other structures to separate the liquid from the low-value plastic and remove the garbage at the same time, taking into account that some plastic bottles and plastic boxes may have residual water inside and leaves on the outside; before recycling, the plastic bottles and plastic boxes are inverted or tilted with manual operation or assistance, and gravity is used to make the water flow out, while the garbage is removed to improve the recycling quality; in addition, the plastic bottles and plastic boxes can also be cleaned and adjusted according to the specific usage.

[0043] The classification unit is provided with a conveyor and other structures, which are used to classify the low-value plastics after the liquid is separated according to the material during the conveying process. For example, low-density polyethylene among low-value plastics is commonly found in plastic films, food packaging, etc.; high-density polyethylene is often used to make plastic bottles, trash cans, etc. Classification and recycling improves utilization rate.

[0044] The compression unit compresses low-value plastics and forms agglomerates for easy storage and transportation. The compression process includes packaging the agglomerates to avoid looseness during storage and transportation. The compression and packaging of low-value plastics are integrated into one operation, which reduces intermediate processes, reduces equipment usage costs, and improves recycling efficiency.

[0045] The present invention improves the recycling quality by arranging a solid-liquid separation unit, a classification unit and a compression unit, and at the same time integrates the compression and packaging of low-value plastics, reduces intermediate processes, reduces equipment use costs, avoids looseness during storage and transportation, and improves recycling efficiency.

[0046] The present invention provides Figure 2 to Figure 7 A low-value plastic recycling device is shown, which is applied to the above-mentioned low-value plastic recycling system, and also includes a compression box 1 and a discharge port 3 arranged at one end of the compression box 1. Both ends of the bottom of the compression box 1 are fixedly connected with a vertical plate 14, and the vertical plate 14 supports the compression box 1. A limiting square frame 4 is arranged at one end of the compression box 1 close to the discharge port 3, and the limiting square frame 4 surrounds the outer side of the compression box 1.

[0047] A compression plate 13 for compressing low-value plastics is slidably arranged inside the compression box 1. A second electric push rod 12 is fixedly connected to one end of the compression box 1 away from the discharge port 3. The compression plate 13 is fixedly connected to the telescopic end of the second electric push rod 12. The compression plate 13 is driven by the second electric push rod 12 to move inside the compression box 1, thereby compressing the low-value plastic inside the compression box 1, so that the low-value plastic forms a mass. The second electric push rod 12 can be replaced with an electric cylinder and adjusted according to specific usage conditions.

[0048] A through slot 15 is provided at the top of the compression box 1, and the through slot 15 is close to the limiting frame 4. A limiting plate 16 is slidably provided inside the through slot 15, and a bracket 17 is fixedly connected to the top of the compression box 1. A third electric push rod 18 is fixedly connected to the upper surface of the bracket 17, and a through hole is provided on the bracket 17 for the telescopic end of the third electric push rod 18 to pass through, and the limiting plate 16 is fixedly connected to the telescopic end of the third electric push rod 18.

[0049] By providing structures such as the limit plate 16 and the third electric push rod 18, when the low-value plastic is compressed, the limit plate 16 separates the interior of the compression box 1 and cooperates with the compression plate 13 to facilitate the compression operation.

[0050] In order to improve the recycling efficiency, a support bar 2 is fixedly connected to one end of the compression box 1 near the discharge port 3. The support bar 2 is used to hold the packing bag open. Four support bars 2 are provided. The four support bars 2 are respectively distributed at the four corners of the compression box 1, and the support bars 2 are L-shaped. The support structure formed by the four support bars 2 makes the internal shape of the packing bag consistent with the internal shape of the compression box 1, which is convenient for quick packing, and the support bars 2 can be pulled out from the inside of the packing bag after packing is completed.

[0051] In order to locate the opening of the packing bag, a frame-shaped gap 23 is formed between the limiting frame 4 and the outer wall of the compression box 1 for the packing bag to pass through. A square groove 28 is opened on the inner wall of the limiting frame 4. The interior of the square groove 28 is fixedly connected with a first airbag 5. When the first airbag 5 is inflated, the packing bag is positioned.

[0052] Specifically, the packing bag is inserted into the support structure formed by four support bars 2, and the bag opening of the packing bag passes through the frame-shaped gap 23; the first airbag 5 expands and becomes larger and squeezes and fits on the outer surface of the bag opening of the packing bag, and cooperates with the outer wall of the compression box 1 to complete the positioning of the packing bag, so as to facilitate direct packing after compression, and at the same time, the low-value plastic is compressed into a mass and the packing bag will not loosen when it enters the interior of the packing bag.

[0053] By providing structures such as the compression box 1, the support bar 2 and the first airbag 5, the functions of compression and packaging are realized. At the same time, the packaging bag can be supported and positioned, which is convenient for direct packaging after compression, and the packaging bag will not become loose, thereby improving the recycling efficiency.

[0054] The end of the compression box 1 near the discharge port 3 is fixedly connected to the packing table 6, and the limiting frame 4 is fixedly connected to the upper surface of the packing table 6. The packing table 6 is provided with a sliding channel 9, and a slider 10 is slidably arranged inside the sliding channel 9. The bottom of the packing table 6 is fixedly connected to the first electric push rod 11, and the slider 10 is fixedly connected to the telescopic end of the first electric push rod 11. The top of the slider 10 is fixedly connected to the baffle 7, and the side of the baffle 7 near the compression box 1 is fixedly connected to the conveying plate 8, and the conveying plate 8 is located at the bottom of the baffle 7. The baffle 7 and the conveying plate 8 are driven to move by the first electric push rod 11.

[0055] A pump body 22 is fixedly connected to the outer wall of the compression box 1, and the pump body 22 has two air outlet ends and two air inlet ends, one of the air outlet ends is connected to a second air duct 25 through a joint, and the second air duct 25 is T-shaped with the air outlet end, one end of the second air duct 25 is connected to the first air bag 5, and a second solenoid valve 27 is installed at the end of the second air duct 25 close to the first air bag 5, and the other air outlet end is connected to the factory air treatment pipeline; one of the air inlet ends is connected to the first air duct 24, and the end of the first air duct 24 away from the pump body 22 is connected to the interior of the compression box 1, and the connection point between the first air duct 24 and the compression box 1 is close to the limit plate 16, and the other air inlet end is connected to the external atmospheric environment, and electric control valves are installed on both the air outlet end and the air inlet end.

[0056] Specifically, the telescopic end of the first electric push rod 11 is controlled to extend, and the baffle 7 is driven to move away from the compression box 1 through the slider 10, so that there is a certain gap between the end of the support bar 2 away from the compression box 1 and the baffle 7, which is convenient for subsequent fixing of the packaging bag.

[0057] Then, the packing bag is put into the supporting structure formed by the four supporting bars 2, and the bag mouth of the packing bag passes through the frame-shaped gap 23; the pump body 22 is started, the electric control valve on the air inlet end connected to the external atmospheric environment is opened, the electric control valve on the air outlet end connected to the second air duct 25 is opened, and the second solenoid valve 27 is opened. The pump body 22 sucks the external air and transports it to the interior of the first airbag 5, so that the first airbag 5 expands and becomes larger and squeezed to fit on the outer surface of the bag mouth of the packing bag, and cooperates with the outer wall of the compression box 1 to complete the positioning of the packing bag, and then the second solenoid valve 27 is closed to keep the first airbag 5 in an expanded state.

[0058] The telescopic end of the first electric push rod 11 is controlled to be retracted, and the baffle 7 is driven to move toward the compression box 1 through the slider 10. The baffle 7 is close to the support bar 2 and fits on the outer surface of the packing bag. The baffle 7 and the support bar 2 form a supporting and limiting structure for the packing bag. At the same time, the conveying plate 8 is located below the packing bag to support the bottom of the packing bag.

[0059] The telescopic end of the third electric push rod 18 is controlled to extend, driving the limit plate 16 to move downward from the inside of the through slot 15 to isolate the inside of the compression box 1.

[0060] After the low-value plastic is poured into the compression box 1, the telescopic end of the second electric push rod 12 is controlled to extend, and the compression plate 13 moves toward the limit plate 16 to compress the low-value plastic, and the low-value plastic forms a mass; at the same time, the pump body 22 is started, the electric control valve on the air outlet end connected to the factory air treatment pipeline is opened, and the electric control valve on the air inlet end connected to the first air duct 24 is opened. During the compression process, the pump body 22 sucks the gas inside the compression box 1 and transports it to the factory air treatment pipeline, making the compression tighter.

[0061] By providing structures such as the pump body 22 and the first air duct 24 , during the compression process, the pump body 22 sucks the gas inside the compression box 1 , making the compression tighter.

[0062] After the compression is completed, the telescopic end of the third electric push rod 18 is controlled to be retracted, driving the limit plate 16 to move upward and reset from the inside of the through groove 15, and then the telescopic end of the second electric push rod 12 is controlled to continue to extend quickly to push the mass into the packing bag, thereby realizing a rapid transition between compression and packaging, preventing the mass from deforming or the plastic outside the mass from falling off, and at the same time, under the limiting action of the baffle 7, it can be shaped once inside the packing bag.

[0063] Then the first airbag 5 is contracted and becomes smaller to release the positioning of the packing bag; the telescopic end of the first electric push rod 11 is controlled to extend, and the baffle 7 and the conveying plate 8 are driven to move away from the compression box 1 through the slider 10, and with the assistance of the operator, the packaged mass together with the packaging bag falls on the conveying plate 8 and is conveyed away from the compression box 1, and the support bar 2 can be pulled out from the inside of the packing bag. Since the compressed mass has a certain weight, the work intensity of the operator can be reduced under the support of the conveying plate 8.

[0064] By providing the conveying plate 8, the bottom of the packing bag is supported when the mass is pushed into the packing bag, and after the packing is completed, the mass can be supported and conveyed, thereby reducing the work intensity of the operator.

[0065] A feed slot 19 is provided on the top of the compression box 1, a feed cylinder 20 is fixedly connected to the upper surface of the compression box 1, the feed cylinder 20 is connected to the inside of the compression box 1 through the feed slot 19, and a second air bag 21 is fixedly connected to the inner wall of the feed cylinder 20. The other end of the second air duct 25 is connected to the second air bag 21, and a first solenoid valve 26 is installed at one end of the second air duct 25 close to the second air bag 21.

[0066] When in use, the low-value plastic is poured into the interior of the feed barrel 20, and the low-value plastic enters the interior of the compression box 1 from the feed trough 19. When there is a lot of low-value plastic accumulated below the feed trough 19, the telescopic end of the second electric push rod 12 is controlled to extend, and the compression plate 13 moves toward the limit plate 16 to push the low-value plastic toward the limit plate 16, and then the telescopic end of the second electric push rod 12 is controlled to be recovered. The operation is repeated many times to avoid the low-value plastic from being blocked at the bottom of the feed trough 19; during the back and forth movement of the compression plate 13, stop pouring the low-value plastic into the interior of the feed barrel 20 to avoid the low-value plastic from entering the position of the compression plate 13 facing away from the limit plate 16.

[0067] During the feeding process, if blockage occurs, start the pump body 22, open the electric control valve on the air inlet end connected to the external atmospheric environment, open the electric control valve on the air outlet end connected to the second air duct 25, open the first solenoid valve 26, and the pump body 22 sucks the external air and transports it to the inside of the second airbag 21, so that the second airbag 21 expands and becomes larger; then close the pump body 22, and under the action of the second airbag 21's own restoring elastic force, the second airbag 21 shrinks and becomes smaller, and the second airbag 21 is repeatedly inflated and exhausted for many times, so that the second airbag 21 produces a shaking effect, thereby achieving the effect of rapid unblocking, and the feeding speed can also be adjusted by controlling the degree of expansion of the second airbag 21.

[0068] In addition, the pump body 22 can control the expansion state of the first airbag 5 and the second airbag 21, and can also suck the gas inside the compression box 1 to improve the utilization rate.

[0069] The present invention also provides a low-value plastic recycling method, which is applied to the above-mentioned low-value plastic recycling device and also includes the following operating steps:

[0070] S1, compression, forming a partition space inside the compression box 1 and compressing the low-value plastic into a mass;

[0071] S2, packing, pushing the lumps into the packing bags that have been expanded;

[0072] S3, take out the material, take out the packing bag together with the agglomerates.

[0073] Working principle: the telescopic end of the first electric push rod 11 is controlled to extend, and the baffle 7 is driven to move away from the compression box 1 through the slider 10, so that there is a certain gap between the end of the support bar 2 away from the compression box 1 and the baffle 7, which is convenient for the subsequent fixing of the packing bag; then the packing bag is put into the support structure formed by the four support bars 2, and the bag opening of the packing bag passes through the frame-shaped gap 23; the pump body 22 is started, the electric control valve on the air inlet end connected to the external atmospheric environment is opened, the electric control valve on the air outlet end connected to the second air duct 25 is opened, the second solenoid valve 27 is opened, and the first solenoid valve 28 is closed. A solenoid valve 26, the pump body 22 sucks the external air and delivers it to the inside of the first airbag 5, so that the first airbag 5 expands and becomes larger and squeezed to fit on the outer surface of the bag mouth of the packing bag, and cooperates with the outer wall of the compression box 1 to complete the positioning of the packing bag, and then closes the second solenoid valve 27; the telescopic end of the first electric push rod 11 is controlled to be recovered, and the baffle 7 is driven by the slider 10 to move toward the compression box 1. The baffle 7 is close to the support bar 2 and fits on the outer surface of the packing bag. The baffle 7 and the support bar 2 form a support and limiting structure for the packing bag, and the conveying plate 8 is located below the packing bag.

[0074] The telescopic end of the third electric push rod 18 is controlled to extend, driving the limit plate 16 to move downward from the inside of the through slot 15 to isolate the inside of the compression box 1.

[0075] The low-value plastic is poured into the interior of the feed barrel 20, and the low-value plastic enters the interior of the compression box 1 from the feed trough 19. When there is a lot of low-value plastic accumulated below the feed trough 19, the telescopic end of the second electric push rod 12 is controlled to extend, and the compression plate 13 moves toward the limit plate 16 to push the low-value plastic toward the limit plate 16, and then the telescopic end of the second electric push rod 12 is controlled to be recovered. The operation is repeated many times to avoid the low-value plastic from being blocked at the bottom of the feed trough 19. During this process, stop pouring the low-value plastic into the interior of the feed barrel 20 to avoid the low-value plastic from entering the position of the compression plate 13 facing away from the limit plate 16.

[0076] During the feeding process, if blockage occurs, start the pump body 22, open the electric control valve on the air inlet end connected to the external atmospheric environment, open the electric control valve on the air outlet end connected to the second air duct 25, open the first solenoid valve 26, and the pump body 22 sucks the external air and transports it to the inside of the second airbag 21, so that the second airbag 21 expands and becomes larger; then close the pump body 22, and under the action of the second airbag 21's own restoring elastic force, the gas inside it is discharged, and the second airbag 21 shrinks and becomes smaller. Repeat the operation many times, so that the second airbag 21 produces a shaking effect, thereby achieving the effect of rapid unblocking.

[0077] After the loading is completed, the telescopic end of the second electric push rod 12 is controlled to extend, and the compression plate 13 moves toward the limit plate 16 to compress the low-value plastic and form a mass of the low-value plastic; at the same time, the pump body 22 is started, and the electric control valve on the air outlet end connected to the factory air treatment pipeline is opened, and the electric control valve on the air inlet end connected to the first air duct 24 is opened. During the compression process, the pump body 22 sucks the gas inside the compression box 1 and transports it to the factory air treatment pipeline, making the compression tighter.

[0078] After the compression is completed, the telescopic end of the third electric push rod 18 is controlled to be retracted, driving the limit plate 16 to move upward and reset from the inside of the through groove 15, and then the telescopic end of the second electric push rod 12 is controlled to continue to extend quickly to push the mass into the packing bag, thereby realizing a rapid transition between compression and packaging, preventing the mass from deforming or the plastic outside the mass from falling off, and at the same time, under the limiting action of the baffle 7, it can be shaped once inside the packing bag.

[0079] Then open the second solenoid valve 27, and under the action of the first airbag 5's own restoring elastic force, the gas inside it is discharged, and the first airbag 5 shrinks and becomes smaller, thereby releasing the positioning of the packing bag; control the telescopic end of the first electric push rod 11 to extend, and drive the baffle 7 and the conveying plate 8 to move away from the compression box 1 through the slider 10, and with the assistance of the operator, the packaged agglomerates fall on the conveying plate 8 and are conveyed away from the compression box 1. Due to the supporting effect of the conveying plate 8, the operator's work intensity can be reduced; then the operator uses tape to seal the bag mouth of the packing bag for storage and transportation.

Claims

1. A low-value plastic recycling system, characterized by: It includes a solid-liquid separation unit, a classification unit and a compression unit which are arranged in sequence; Solid-liquid separation unit, used to separate liquid from low-value plastics and remove garbage at the same time; A classification unit is used to classify the low-value plastics after the liquid is separated according to the material; A compression unit compresses the low value plastic and forms briquettes, wherein the compression process includes packaging of the briquettes.

2. A low-value plastic recycling device, characterized in that: The low-value plastic recycling system applied to claim 1 further comprises a compression box (1) and a discharge port (3) arranged at one end of the compression box (1), wherein a compression plate (13) for compressing low-value plastic is slidably arranged inside the compression box (1), a support bar (2) is fixedly connected to one end of the compression box (1) close to the discharge port (3), and the support bar (2) is used to open the packaging bag, and a limiting square frame (4) is arranged at one end of the compression box (1) close to the discharge port (3), and the limiting square frame (4) surrounds the outer side of the compression box (1), and a frame-shaped gap (23) for the packaging bag to pass through is formed between the limiting square frame (4) and the outer wall of the compression box (1), and a square groove (28) is opened on the inner wall of the limiting square frame (4), and a first air bag (5) is fixedly connected to the inside of the square groove (28), and the first air bag (5) is positioned when the first air bag (5) is inflated.

3. A low-value plastic recycling device according to claim 2, characterized in that: The support bars (2) are arranged in four numbers, and the four support bars (2) are respectively distributed at the four corners of the compression box (1).

4. A low-value plastic recycling device according to claim 2, characterized in that: Both ends of the bottom of the compression box (1) are fixedly connected with vertical plates (14); one end of the compression box (1) close to the discharge port (3) is fixedly connected with a packing table (6); the limiting frame (4) is fixedly connected to the upper surface of the packing table (6); a sliding channel (9) is provided on the packing table (6); a slider (10) is slidably arranged inside the sliding channel (9); a baffle (7) is fixedly connected to the top of the slider (10); a conveying plate (8) is fixedly connected to the side of the baffle (7) close to the compression box (1); and the conveying plate (8) is located at the bottom end of the baffle (7).

5. A low-value plastic recycling device according to claim 4, characterized in that: A first electric push rod (11) is fixedly connected to the bottom of the packaging table (6), and the sliding block (10) is fixedly connected to the telescopic end of the first electric push rod (11).

6. A low-value plastic recycling device according to claim 2, characterized in that: A second electric push rod (12) is fixedly connected to one end of the compression box (1) away from the discharge port (3), and the compression plate (13) is fixedly connected to the telescopic end of the second electric push rod (12).

7. A low-value plastic recycling device according to claim 2, characterized in that: The top of the compression box (1) is provided with a through slot (15), and the through slot (15) is close to the limiting frame (4). A limiting plate (16) is slidably arranged inside the through slot (15). The top of the compression box (1) is fixedly connected with a bracket (17), and the upper surface of the bracket (17) is fixedly connected with a third electric push rod (18). The bracket (17) is provided with a through hole for the telescopic end of the third electric push rod (18) to pass through, and the limiting plate (16) is fixedly connected to the telescopic end of the third electric push rod (18).

8. A low-value plastic recycling device according to claim 2, characterized in that: A feed groove (19) is provided on the top of the compression box (1), a feed barrel (20) is fixedly connected to the upper surface of the compression box (1), the feed barrel (20) is connected to the interior of the compression box (1) through the feed groove (19), and a second air bag (21) is fixedly connected to the inner wall of the feed barrel (20).

9. A low-value plastic recycling device according to claim 8, characterized in that: A pump body (22) is fixedly connected to the outer wall of the compression box (1), and the pump body (22) has two air outlet ends and two air inlet ends, one of the air outlet ends is connected to a second air duct (25), one end of the second air duct (25) is connected to the second air bag (21), the other end of the second air duct (25) is connected to the first air bag (5), and a first solenoid valve (26) is installed at one end of the second air duct (25) close to the second air bag (21), and a second solenoid valve (27) is installed at one end of the second air duct (25) close to the first air bag (5), the other air outlet end is connected to the factory air treatment pipeline, one of the air inlet ends is connected to the first air duct (24), one end of the first air duct (24) away from the pump body (22) is connected to the interior of the compression box (1), and the other air inlet end is connected to the external atmospheric environment, and electric control valves are installed on both the air outlet end and the air inlet end.

10. A method for recycling low-value plastics, characterized in that: The low-value plastic recycling device as claimed in any one of claims 2 to 9 further comprises the following operating steps: S1, compression, forming a partition space inside the compression box (1) and compressing the low-value plastic into a mass; S2, packing, pushing the lumps into the packing bags that have been expanded; S3, take out the material, take out the packing bag together with the agglomerates.

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