Material sorting system and sorting method

Abstract

The present application discloses a material sorting system and a sorting method, including a material sorting system and a sorting method provided by the present application, which adopt the following technical scheme: including a feed unit, a primary sorting device, a secondary sorting device, a first transport channel, a plurality of storage bins, a transport pipeline, and a reversing component. The present application uses a feed unit, a primary sorting device, a secondary sorting device and other multi-level coordination, firstly, the primary sorting device sorts the plastic into plastic bottles and other plastics, and then the secondary sorting device further subdivides them, thereby realizing a more sophisticated and efficient material sorting process; in the secondary sorting device, the first partition is used to divide the transmission channel into two conveying areas, and the output end is further divided into four output channels by the second partition and the diverter plate. The equipment that can only sort two kinds of items can realize four kinds of material sorting, thereby improving the types and efficiency of sorting, and the sorting of plastics in each partition can be realized by simply setting the sorting objects.

Description

Technical Field

[0001] The present application relates to the technical field of material sorting, and in particular to a material sorting system and a sorting method. Background Art

[0002] Due to the large number of plastic types, plastic recycling factories need to sort the plastics when recycling them to facilitate the subsequent utilization and processing of plastic bottles; existing plastic recycling factories are unable to sort continuously due to the size limitations of storage bins. When the storage bin is full, the plastics in the bin need to be packaged, and the bin cannot receive plastics at this time. Summary of the invention

[0003] The purpose of this application is to provide a material sorting system and a sorting method in order to achieve continuous plastic sorting.

[0004] In the first aspect, the present application provides a material sorting system, which adopts the following technical scheme: it includes a feeding unit, a primary sorting device, a secondary sorting device, a first transport channel, a plurality of storage bins, a transport pipeline, and a reversing component, wherein the feeding unit is connected to the input end of the primary sorting device, the output end of the primary sorting device is respectively connected to the first transport channel, a manual screening area is arranged on one side of the first transport channel, and specific materials in the first transport channel are screened to different storage bins, the output end of the first transport channel is connected to the secondary sorting device, the output end of the secondary sorting device is connected to a plurality of the transport pipelines, the reversing component is arranged at the end of the transport pipeline, and each of the transport pipelines can be connected to at least two different storage bins through the reversing component.

[0005] By adopting the above technical scheme, firstly, the first-level sorting equipment distinguishes plastics according to whether they are plastic bottles, and transports plastic bottles and other plastics separately on the first transport channel. When the first transport channel passes through the manual screening area, the non-beverage bottles in the plastic bottles are manually selected and thrown into different storage bins. In the second-level sorting equipment, the beverage bottles and other plastics are screened into white bottles and colored bottles, recyclable plastics and garbage respectively. The white bottles, colored bottles and first-level recyclable plastics are transported to different storage bins through transport pipelines for storage. Each type of plastic corresponds to two storage bins. The end of the transport pipeline is switched between the two different storage bins through the reversing component. In this way, when one of the storage bins is almost full and needs to be unloaded, the reversing component switches the transport channel to another transport channel, so that the plastic will not be stopped during the packaging and transportation process.

[0006] Optionally, it also includes a baler, a label remover, a second transport channel, and several third transport channels, the second transport channel is arranged below the storage bin, the second transport channel is connected to the blanking port of the storage bin, at least one of the second transport channels is connected to the input end of the label remover, the output end of the label remover is connected to the input end of the baler, at least one of the second transport channels is connected to the third transport channels, and the third transport channels are connected to the input end of the baler.

[0007] By adopting the above technical solution, since the outer packaging of beverage bottles has labels, the beverage bottles need to be transported to the label removing machine for label removal. After the labels are removed, the plastics are transported to the baler for packaging. The plastics that can be directly packaged can be directly transported to the baler through the third transportation channel for packaging.

[0008] Optionally, the storage bin is provided with an elevator, a dump hopper, a bracket, a first weighing unit, a second weighing unit, and a silo, the dump hopper is arranged at the mobile end of the elevator, the dump hopper is placed above the first weighing unit, the elevator is fixedly connected to the bracket, the second weighing unit is installed on the bracket, and the silo is arranged on the second weighing unit.

[0009] By adopting the above technical solution, the inverted hopper can be lifted to the top of the silo by the action of the elevator. The inverted hopper is used to receive the plastics screened manually. When the weight of the plastics in the inverted hopper reaches a certain value, the elevator will lift the inverted hopper to the top of the silo and guide the plastic bottles into the silo. When the weight of the plastics in the silo reaches a certain value, the inverted hopper will cache the plastics, and the plastics in the silo will be unloaded to the third transport channel to transport the plastics to the baler for packaging.

[0010] Optionally, one of the first transport channels is fixedly connected to a plurality of funnels, the funnels can be connected to a pouring hopper, and a baffle is rotatably connected to a material leakage port of the funnel, and the baffle can block the material leakage port of the funnel.

[0011] By adopting the above technical solution, the rotating baffle can close the leakage port of the funnel, so that the plastic can be buffered in the funnel, so that the empty hopper has time to rise to the top of the silo for unloading.

[0012] Optionally, a plurality of first partitions are provided in the conveying channel of the secondary sorting device, the first partitions are parallel to the transport direction of the conveying channel, the first partitions divide the conveying channel into a plurality of conveying areas, and each output area is connected to a first transport channel.

[0013] By adopting the above technical solution, it is possible to sort more than two kinds of materials instead of just two kinds of items originally. The first partition increases the conveying area at the input end of the secondary sorting equipment. Each conveying area transports different plastics. It is only necessary to set the sorting object of the secondary sorting equipment to realize the sorting of plastics in each partition.

[0014] Optionally, the output end of the secondary sorting device is provided with a plurality of second partitions, at least a portion of the first partition is parallel to the second partition, the second partition divides the output end of the secondary sorting device into a plurality of output areas, each conveying area is connected to a conveying area, each output area is provided with a diverter plate, the diverter plate divides the output area into two different output channels, and the output channels are connected to the transport pipeline.

[0015] By adopting the above technical solution, the output end of the secondary sorting equipment is divided into several output areas by the second partition from the original two channels, and each output area is connected to a conveying area, so that one device can perform multiple sorting operations.

[0016] Optionally, the transport pipeline includes at least one section of a horizontally arranged flat pipe, several sections of bent pipes, an inclined pipe with at least one end inclined, a connecting pipe connected to a three-way pipe, and a fan connected to at least one end of the flat pipe. The flat pipe, the bent pipe, the connecting pipe and the inclined pipe constitute an air duct for transporting materials. The flat pipe connected to the fan is connected to the inclined pipe through the bent pipe. The inclined pipe is provided with a through groove, and a slope is provided on one side of the through groove. The slope faces the transport airflow. The flat pipe connected to the fan is provided with an opening, and a receiving plate is provided at the opening. An inclined plate is provided in the receiving plate, and the inclined plate extends into the flat pipe. The highest point of the inclined plate is close to the fan.

[0017] By adopting the above technical solution, since plastic is relatively light, it is suitable for airflow transportation. However, due to the wide variety of plastics, many useless items will be mixed in them, and these items need to be removed during transportation. The inclined plate and the slope change the airflow distribution in the channel, making it easier to transport plastic bottles, and the debris will fall into the trough, thus achieving the removal of the debris.

[0018] Optionally, the reversing component includes a three-way pipe connected to the transport pipe, and a door panel movably connected to the three-way pipe, the transport pipe is connected to one of the three-way pipes, the other two channels in the three-way pipe are connected to different storage bins, and the door panel can block at least one of the three-way pipes.

[0019] By adopting the above technical solution, the transport pipeline can be switched between two different storage bins according to different selections of door panels. When one of the storage bins is full, it switches to the other storage bin, so that the storage and packaging of the same type of plastics can be synchronized.

[0020] Optionally, a rotating shaft is rotatably connected inside the three-way pipe, one end of the rotating shaft passes through the three-way pipe, the rotating shaft is fixedly connected to the door panel, the door panel is rotatably connected to a rotating plate, the end of the rotating shaft is fixedly connected to a connecting rod, the connecting rod is provided with a sliding groove, a sliding column is slidably connected in the sliding groove, a support frame is fixedly connected to the outside of the three-way pipe, the support frame is provided with a screw rod, the screw rod is threadedly connected to a screw block, and the screw block is fixedly connected to the sliding column.

[0021] By adopting the above technical solution, when the rotating plate contacts the inner wall of the three-way pipe, the rotating plate will rotate and form an obtuse angle with the door panel, which has a better effect of guiding the air flow; when the airflow blows towards the door panel and the rotating plate, the door panel and the rotating plate have a certain degree of support, making the blocking effect of the door panel and the rotating plate more stable.

[0022] Optionally, the door panel is provided with a first connecting part, the rotating plate is provided with a second connecting part, the first connecting part is rotatably connected to the second connecting part, the first connecting part is provided with an arc groove, the second connecting part is provided with a protrusion, and the protrusion can move in the arc groove.

[0023] By adopting the above technical solution, the arc groove can limit the rotation angle of the rotating plate to prevent the rotating plate from rotating at an excessively large angle.

[0024] In a second aspect, the present application provides a sorting method, which adopts the following steps:

[0025] S1. First, the plastics to be sorted are transported to a primary sorting device. The primary sorting device sorts the plastics into plastic bottles and other plastics. The plastic bottles and other plastics are transported through two first transport channels respectively.

[0026] S2, screening the non-PET plastics on the first transport channel by type through manual screening and placing them into a storage bin;

[0027] S3, the first transport channel transports the remaining plastics after manual sorting to the secondary sorting equipment, and the secondary sorting equipment further sorts the plastic bottles. The plastics that have passed the secondary sorting equipment are transported to different storage bins through transport pipes for storage. Each transport pipe can switch between two different storage bin diameters for storage;

[0028] S4. Transport the plastics in the storage bin to the label remover and baler for baling.

[0029] By adopting the above technical solutions, from feeding to primary sorting, manual screening and secondary sorting, the entire process logic is clear and each link is closely connected, which helps to improve the sorting efficiency; the plastic bottles and other plastics are separated by the primary sorting equipment, and then the non-PET plastics are further classified by manual screening, which can effectively separate different types of plastics and improve the accuracy of sorting; the reversing component at the end of the transport pipeline enables the transport pipeline to connect two different storage bins, increasing the flexibility of storage and facilitating storage according to different types and processing requirements of plastics. The transport channel under the storage unit is reasonably set up, which can transport the plastic bottles and other plastics after label removal to the baler separately, realizing the rapid processing and circulation of materials.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. Through the cooperation of the feeding unit, the first-level sorting equipment, the second-level sorting equipment and other multi-levels, the first-level sorting equipment first sorts the plastic into plastic bottles and other plastics, and then the second-level sorting equipment further subdivides them, thus realizing a more refined and efficient material sorting process; in the second-level sorting equipment, the transmission channel is divided into two conveying areas by the first partition, and the output end is further divided into four output channels by the second partition and the diverter plate. The equipment that could originally only sort two kinds of items can now sort four kinds of materials, thus improving the types and efficiency of sorting. The plastics in each partition can be sorted by simply setting the sorting objects.

[0032] 2. Multiple groups of storage units are set on one side of the secondary sorting equipment. Different storage units are used to store different types of plastics (such as white bottles, color bottles, other plastics, etc.), and corresponding transportation channels are set under each storage bin. The transportation channels are interconnected and finally connected to the baler, so that the storage and packaging processes are closely connected and easy to operate; the storage units for storing white bottles and color bottles can store both plastic bottles that need to be delabeled and plastic bottles that do not need to be delabeled. The sorting switching of the entire sorting process is convenient and concise. At the same time, the transportation pipeline can switch between two different storage bins through the reversing component. When one storage bin is full, it can switch to another, so as to realize the storage and packaging synchronization of the same type of plastics. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0034] Figure 2 is a schematic diagram of the overall structure of Example 1 of the present application from different viewing angles;

[0035] Figure 3 is a top view of the overall structure of Example 1 of the present application;

[0036] Figure 4 This application Figure 2 Middle a shows a local enlarged view;

[0037] Figure 5 It is a schematic diagram of the structure of the storage bin in Example 1 of the present application;

[0038] Figure 6 is a schematic diagram of the structure of the funnel in Example 1 of the present application;

[0039] Figure 7 This application Figure 1 Middle b shows a local enlarged view;

[0040] Figure 8 It is a schematic diagram of the structure of the three-way pipeline in Example 1 of the present application;

[0041] Fig. 9 It is a structural schematic diagram of the secondary sorting device in Example 1 of the present application;

[0042] Fig.10 It is a schematic diagram of the structure of the transport pipeline in Example 1 of the present application;

[0043] Fig.11 This application is Fig.10 Partial cross-sectional view;

[0044] Fig.12 It is a schematic diagram of the structure of the three-way pipeline in Example 2 of the present application;

[0045] Fig.13 is a schematic diagram of the first connecting portion and the second connecting portion in Example 2 of the present application;

[0046] Fig.14 It is a schematic diagram of the door panel and rotating plate in Example 2 of the present application.

[0047] Explanation of reference numerals: 1. feeding unit; 2. primary sorting equipment; 3. first transport channel; 31. manual screening area; 32. hopper; 321. baffle; 322. hydraulic telescopic rod; 323. connector; 4. storage bin; 41. second transport channel; 42. fourth transport channel; 43. third transport channel; 44. second weighing unit; 45. bin; 451. bracket; 46. elevator; 47. load-bearing platform; 48. first weighing unit; 49. dump hopper; 5. secondary sorting equipment; 51. conveying area; 52. second partition; 53. output area; 54. diverter plate; 55. first partition; 6. reversing assembly; 61. rotating shaft; 62. door panel; 621 , first connecting part; 622, arc groove; 63, rotating plate; 631, second connecting part; 632, protrusion; 64, three-way pipe; 641, first connecting port; 642, second connecting port; 643, third connecting port; 65, connecting rod; 66, supporting frame; 67, wire block; 68, slide groove; 69, screw rod; 7, transportation pipeline; 71, fan; 72, flat pipe; 73, inclined pipe; 731, slope; 732, through groove; 74, bending pipe; 75, receiving plate; 76, opening; 77, inclined plate; 771, high pressure area; 772, adsorption area; 773, transportation area; 774, advection area; 775, jumping area; 78, connecting pipe; 8, baling machine; 9, label removing machine. DETAILED DESCRIPTION

[0048] The following is combined with Figure 1 -Attached Fig.14 This application is described in further detail.

[0049] The embodiment of the present application discloses a material sorting system.

[0050] Example 1 and Figure 2 , refer to Figure 1A material sorting system and a sorting method include a feeding unit 1, a primary sorting device 2, a secondary sorting device 5, two first transport channels 3, a plurality of storage bins 4, three transport pipes 7, and a reversing component 6. In Example 1, the feeding unit 1 is a climbing machine. The feeding unit 1 is connected to the input end of the primary sorting device 2 to transport the plastic to be sorted to the primary sorting device 2. The primary sorting device 2 sorts the plastic into plastic bottles and other plastics. The plastic bottles and other plastics are transported to the secondary sorting device 5 through two first transport channels 3 respectively. Three storage bins 4 are arranged on one side of the first transport channel 3, and a manual screening area 31 is arranged on the other side. Workers stand in the manual screening area 31 to screen non-PET plastics in the first transport channel 3, such as oil bottles, shower gel bottles, plastic cosmetic bottles, etc., and throw them into the three storage bins 4 according to their types; the output ends of the two first transport channels 3 are connected to the secondary sorting device 5, and the output end of the secondary sorting device 5 is connected to the three transport pipes 7. The reversing component 6 is arranged at the end of the transport pipe 7, and each transport pipe 7 can be connected to two different storage bins 4 through the reversing component 6.

[0051] refer to Figure 2 , Figure 3 and Figure 4 , two groups of storage units are provided on one side of the secondary sorting device 5, and one group of storage units is provided on the other side, each group of storage units includes two storage bins 4, each storage unit is connected to a transport pipe 7, and a second transport channel 41 is provided below each storage bin 4. In Example 1, the second transport channel 41 adopts a conveyor belt, wherein two storage units are used to store white bottles and color bottles respectively, and the other storage unit is used to store other plastics. One end of the second transport channel 41 located below the storage bin 4 for storing white bottles and the storage bin 4 for storing color bottles is connected to the label remover 9, and the other end is connected to the fourth transport channel 42. The white bottles and color bottles that have been labelled are transported to the baler 8 through the conveyor belt; the second transport channel 41 located below the non-PET plastic storage bin 4 is connected to the fourth transport channel 42, and the second transport channel 41 located below the storage bin 4 for the other plastics is connected to the third transport channel 43, the fourth transport channel 42 is connected to the third transport channel 43, and the third transport channel 43 is connected to the baler 8. In this way, the two storage units for storing white bottles and color bottles can store not only plastic bottles that need to be labelled, but also plastic bottles that do not need to be labelled, so that the sorting switching of the entire sorting process is convenient and concise.

[0052] refer to Figure 5The storage bin 4 includes a hoist 46, a dump hopper 49, a bracket 451, a first weighing unit 48, a second weighing unit 44, and a bin 45. The bracket 451 is welded by a plurality of metal rods. The hoist 46 is fixedly connected to the bracket 451. The dump hopper 49 is fixedly connected to the moving end of the hoist 46. The first weighing unit 48 is installed on the ground directly below the output end of the hoist 46. The dump hopper 49 can be placed on the first weighing unit 48 when it falls. In Example 1, the first weighing single board includes a bearing platform 47, a buffer disposed on the top surface of the bearing platform 47, and a pressure sensor disposed between the bearing platform 47 and the ground. The buffer can alleviate the impact of the dump hopper 49 when it falls. The bin 45 is fixedly connected to the bracket 451, and the second weighing unit 44 is disposed on the bracket 451 and the bin 45 bracket 451. In Example 1, the second weighing unit 44 adopts a gravity sensor.

[0053] refer to Figure 4 and Figure 6 A plurality of funnels 32 are fixedly connected to one side of one of the first transport channels 3, the material discharge port of the funnel 32 faces the pouring hopper 49, a baffle 321 is rotatably connected to the material discharge port of the funnel 32, the funnel 32 is rotatably connected to a hydraulic telescopic rod 322, and a connecting piece 323 is rotatably connected to the output end of the hydraulic telescopic rod 322, and the connecting piece 323 is fixedly connected to the baffle 321.

[0054] refer to Figure 7 and Figure 8 The reversing component 6 includes a three-way pipe 64 connected to the transport pipe 7, and a door panel 62 rotatably connected to the three-way pipe 64. In order to facilitate the description of the three-way pipe 64, the three ports of the three-way pipe 64 are named as the first connection port 641, the second connection port 642 and the third connection port 643 respectively. The first connection port 641, the second connection port 642 and the third connection port 643 form a Y shape. The door panel 62 is arranged at the intersection of the three connection ports. The three-way pipe 64 is rotatably connected with a rotating shaft 61, which runs through the three-way pipe 64. The rotating shaft 61 is fixedly connected to the door panel 62. The third connection port 643 is connected to the transport pipe 7. The first connection port 641 and the second connection port 642 are respectively connected to different storage bins 4. According to different positions of the door panel 62, the third connection port 643 can be connected to the first connection port 641 and the second connection port 642 respectively. According to different selections of the door panel 62, the transport pipe 7 can be switched between two different storage bins 4. When one of the storage bins 4 is full, it is switched to the other storage bin 4, so that the storage and packaging of the same type of plastics can be synchronized.

[0055] refer to Figure 7 and Fig. 9, a first partition 55 is provided in the conveying channel of the secondary sorting device 5, and the first partition 55 is parallel to the conveying direction of the conveying channel. The first partition 55 divides the conveying channel into two conveying areas 51, and each output area 53 is connected to a first conveying channel 3, wherein one conveying area 51 is used to convey plastic bottles, and the other conveying area 51 is used to convey the remaining plastics. In this way, originally only two kinds of items could be sorted, but four kinds of materials can be sorted. The first partition 55 increases the conveying area 51 at the input end of the secondary sorting device 5, and each conveying area 51 conveys different plastics. The sorting of plastics in each partition can be realized by simply setting the sorting object of the secondary sorting device 5.

[0056] Referring to the figure, the output end of the secondary sorting device 5 is provided with a second partition 52, the first partition 55 is parallel to the second partition 52, the second partition 52 divides the output end of the secondary sorting device 5 into two output areas 53, each conveying area is connected to a conveying area 51, and each output area 53 is provided with a diverter plate 54, which divides the output area 53 into two different output channels, and the output channels are connected to the transport pipeline 7. In this way, the output end of the secondary sorting device 5 is divided into four output channels from the original two channels under the action of the second partition 52 and the diverter plate 54, of which three output channels are respectively connected to three transport pipelines 7, and the other one discharges the screened garbage.

[0057] refer to Fig.10 and Fig.11 The transport pipeline 7 includes a horizontally arranged flat pipe 72, a plurality of bent pipes 74, an inclined pipe 73 arranged obliquely, a connecting pipe 78 connected to the three-way pipe 64, and a fan 71 connected to at least the end of the flat pipe 72. The flat pipe 72, the bent pipe 74, the connecting pipe 78 and the inclined pipe 73 constitute an air duct for transporting materials. The flat pipe 72 connected to the fan 71 is connected to the inclined pipe 73 through the bent pipe 74. The inclined pipe 73 is provided with a through groove, and a slope 731 is provided on one side of the through groove 732. The slope 731 faces the transport airflow. The flat pipe 72 connected to the fan 71 is provided with an opening 76, and a receiving plate is provided at the opening 76. An inclined plate 77 is provided in the receiving plate 75. The inclined plate 77 extends into the flat pipe 72. The highest point of the inclined plate 77 is close to the fan 71. The height of the inclined plate 77 extending into the flat pipe 72 is a, and the diameter of the flat pipe 72 is b. A:b is 1:(1.5-2). The inclined plate 77 and the slope 731 change the state of the transport airflow, so that the inside of the horizontal tube 72 is divided into a high-pressure area 771, an adsorption area 772, a transport area 773 and a horizontal flow area 774.

[0058] refer to Fig.11, taking the left and right directions in the figure as an example, the right side of the inclined plate 77 is the high pressure area 771, the left side is the adsorption area 772, and the transport area 773 is located below the adsorption area 772 and is scattered. The plastic bottle enters the adsorption area 772 under the guidance of the inclined plate 77, and the adsorption area 772 makes the plastic sucked obliquely downward into the transport area 773. The transport area 773 is close to the bottom wall of the flat tube 72, and the plastic is transported along the bottom end of the pipe diameter. The airflow in the transport area 773 is lifted by the inclined tube 73 and the slope 731 and approaches the top wall. On the one hand, the plastic obtains a jumping area 775, in which the heavier debris has a lower jumping height. As it approaches the through slot, the airflow influence decreases, and the heavier debris will fall into the through slot; on the other hand, the transport area 773 is better transitioned to the horizontal flow area 774, and the lifted airflow can be more evenly distributed in the channel. Such a design optimizes the transportation process. Through the synergistic effect of the inclined plate 77 and the slope 731, the materials can be better separated and transported during the transportation process, thereby improving the transportation efficiency and quality. At the same time, the formation of the advection zone 774 helps to stabilize the airflow and further improve the stability and reliability of transportation.

[0059] Example 2, reference Figure 8 , Fig.12 and Fig.13 , which is different from the first embodiment in that: a rotating connection is provided in the three-way pipe 64, one end of the rotating shaft 61 passes through the three-way pipe 64, the rotating shaft 61 is fixedly connected to the door panel 62, the door panel 62 is rotatably connected to the rotating plate 63, the end of the rotating shaft 61 is fixedly connected to a connecting rod 65, the connecting rod 65 is provided with a slide groove 68, a sliding column is slidably connected in the slide groove 68, a support frame 66 is fixedly connected to the outside of the three-way pipe 64, the support frame 66 is provided with a screw rod 69, the screw rod 69 is threadedly connected to a screw block 67, the screw block 67 The door panel 62 is fixedly connected to the sliding column, and a first connection portion 621 is provided on the door panel 62. The rotating plate 63 is provided with a second connection portion 631. The first connection portion 621 is rotatably connected to the second connection portion 631. The first connection portion 621 is provided with an arc groove 622, and the second connection portion 631 is provided with a protrusion 632. The protrusion 632 can move in the arc groove 622. When the rotating plate 63 contacts the inner wall of the three-way pipe 64, it will rotate and form an obtuse angle with the door panel 62. This feature can better guide the air flow. In actual application scenarios, such as in the three-way pipe 64 environment involving air flow transmission such as the ventilation system, this obtuse angle structure can change the flow direction and distribution of the airflow, so that the airflow can pass through different branches of the pipe more smoothly, reduce turbulence, reduce resistance, improve the efficiency of the entire ventilation system, and play a positive role in optimizing the air flow state. The support frame 66 is fixedly connected to a motor that drives the screw 69 to rotate.

[0060] refer to Fig.14The inner wall of the three-way pipe 64 has at least two inclined surfaces, and the number of inclined surfaces in Example 2 is 2. One side of the rotating plate 63 can abut against the inclined surface. The ratio of the length c of the door panel 62 to the length d of the rotating plate 63 is less than 0.489. In this way, when the door panel 62 is rotated under the driving force of airflow, the end of the rotating plate 63 abutting against the inner wall of the three-way pipe 64 will remain stationary due to the resistance of the airflow, and the rotating plate 63 will move in an arc. When the door panel 62 is perpendicular to the horizontal plane, the door panel 62 is not affected by the airflow. When the door panel 62 rotates to the vertical plane, the door panel 62 will drive the rotating plate 63 to rotate. In this way, the load on the rotating shaft 61 during the whole process is in a smaller range, and at this time, the rotating plate 63 can also prevent the influence of the sudden change in the load direction of the rotating shaft 61.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A material sorting system, characterized in that: The invention comprises a feeding unit (1), a primary sorting device (2), a secondary sorting device (5), a first transport channel (3), a plurality of storage bins (4), a transport pipe (7), and a reversing component (6), wherein the feeding unit (1) is connected to the input end of the primary sorting device (2), the output end of the primary sorting device (2) is respectively connected to the first transport channel (3), a manual screening area (31) is arranged on one side of the first transport channel (3), and specific materials in the first transport channel (3) are screened to different storage bins (4), the output end of the first transport channel (3) is connected to the secondary sorting device (5), the output end of the secondary sorting device (5) is connected to a plurality of transport pipes (7), and the reversing component (6) is arranged at the end of the transport pipe (7), and each transport pipe (7) can be connected to at least two different storage bins (4) through the reversing component (6); The reversing assembly (6) comprises a three-way pipe (64) connected to the transport pipe (7), and a door panel (62) movably connected to the three-way pipe (64); a rotating shaft (61) is rotatably connected to the three-way pipe (64); one end of the rotating shaft (61) passes through the three-way pipe (64); the rotating shaft (61) is driven by a motor; the rotating shaft (61) is fixedly connected to the door panel (62); the door panel (62) is rotatably connected to a rotating plate (63); the door panel (62) is provided with a rotating plate (63) A first connection portion (621) is provided, the rotating plate (63) is provided with a second connection portion (631), the first connection portion (621) and the second connection portion (631) are rotatably connected, the first connection portion (621) is provided with an arc groove (622), the second connection portion (631) is provided with a protrusion (632), the protrusion (632) is movable in the arc groove (622), and the door plate (62) and the rotating plate (63) can at least block one of the three-way pipes (64); The inner wall of the three-way pipe (64) has at least two inclined surfaces, and one side of the rotating plate (63) can abut against the inclined surfaces. Thus, when the door panel (62) is rotated under the driving force of air flow, the end of the rotating plate (63) abutting against the inner wall of the three-way pipe (64) will remain stationary due to the resistance of the air flow, and the rotating plate (63) will move in an arc. The rotating plate (63) and the door panel (62) form an obtuse angle. When the door panel (62) is perpendicular to the horizontal plane, the door panel (62) is not affected by the air flow. Only when the door panel (62) rotates to the vertical plane can the door panel (62) drive the rotating plate (63) to rotate.

2. The material sorting system according to claim 1, characterized in that: It also comprises a baling machine (8), a label stripping machine (9), a second transport channel (41), and a plurality of third transport channels (43); the second transport channel (41) is arranged below the storage bin (4); the second transport channel (41) is connected to a material drop opening of the storage bin (4); at least one of the second transport channels (41) is connected to the input end of the label stripping machine (9); the output end of the label stripping machine (9) is connected to the input end of the baling machine (8); at least one of the second transport channels (41) is connected to the third transport channel (43); and the third transport channel (43) is connected to the input end of the baling machine (8).

3. The material sorting system according to claim 2, characterized in that: The storage bin (4) is provided with an elevator (46), a dump hopper (49), a bracket (451), a first weighing unit (48), a second weighing unit (44), and a bin (45); the dump hopper (49) is arranged at the moving end of the elevator (46); the dump hopper (49) is placed above the first weighing unit (48); the elevator (46) is fixedly connected to the bracket (451); the second weighing unit (44) is installed on the bracket (451); and the bin (45) is arranged on the second weighing unit (44).

4. The material sorting system according to claim 3, characterized in that: One of the first transport channels (3) is fixedly connected to a plurality of funnels (32), the funnels (32) being able to communicate with the pouring hopper (49), and a baffle (321) being rotatably connected to a material leakage opening of the funnel (32), the baffle (321) being able to block the material leakage opening of the funnel (32).

5. The material sorting system according to claim 4, characterized in that: A plurality of first partitions (55) are provided in the conveying channel of the secondary sorting device (5), the first partitions (55) being parallel to the conveying direction of the conveying channel, the first partitions (55) dividing the conveying channel into a plurality of conveying areas (51), each output area (53) being connected to a first conveying channel (3).

6. The material sorting system according to claim 5, characterized in that: The output end of the secondary sorting device (5) is provided with a plurality of second partitions (52); at least a portion of the first partition (55) is parallel to the second partition (52); the second partition (52) divides the output end of the secondary sorting device (5) into a plurality of output areas (53); each conveying area is connected to a conveying area (51); a diverter plate (54) is provided in each output area (53); the diverter plate (54) divides the output area (53) into two different output channels; and the output channels are connected to the transport pipeline (7).

7. The material sorting system according to claim 6, characterized in that: The transport pipeline (7) comprises at least one section of a horizontally arranged flat pipe (72), a plurality of sections of bent pipes (74), an inclined pipe (73) with at least one end inclined, a connecting pipe (78) connected to the three-way pipe (64), and a fan (71) connected to at least one end of the flat pipe (72). The flat pipe (72), the bent pipe (74), the connecting pipe (78) and the inclined pipe (73) constitute an air duct for transporting materials. The flat pipe (72) connected to the fan (71) is bent to form a ventilation duct for transporting materials. The tube (74) is connected to the inclined tube (73), the inclined tube (73) is provided with a through groove (732), one side of the through groove (732) is provided with a slope (731), the slope (731) faces the transport airflow, and the horizontal tube (72) connected to the fan (71) is provided with an opening (76), a receiving plate (75) is provided at the opening (76), an inclined plate (77) is provided in the receiving plate (75), the inclined plate (77) extends into the horizontal tube (72), and the highest point of the inclined plate (77) is close to the fan (71).

8. The material sorting system according to claim 7, characterized in that: The transport pipeline (7) is connected to one of the three-way pipelines (64), and the other two channels in the three-way pipeline (64) are connected to different storage bins (4).

9. The material sorting system according to claim 8, characterized in that: The end of the rotating shaft (61) is fixedly connected to a connecting rod (65), the connecting rod (65) is provided with a slide groove (68), a slide column is slidably connected in the slide groove (68), the outer side of the three-way pipe (64) is fixedly connected to a support frame (66), the support frame (66) is provided with a screw rod (69), the screw rod (69) is threadedly connected to a screw block (67), the screw block (67) is fixedly connected to the slide column, and the support frame (66) is fixedly connected to a motor for driving the screw rod (69) to rotate.

10. A sorting method, applicable to the material sorting system according to any one of claims 1 to 9, characterized in that: The specific method is as follows: S1. First, the plastics to be sorted are transported to a primary sorting device. The primary sorting device sorts the plastics into plastic bottles and other plastics. The plastic bottles and other plastics are transported through two first transport channels respectively. S2, screening the non-PET plastics on the first transport channel by type through manual screening and placing them into a storage bin; S3, the first transport channel transports the remaining plastics after manual sorting to the secondary sorting equipment, and the secondary sorting equipment further sorts the plastic bottles. The plastics that have passed the secondary sorting equipment are transported to different storage bins through transport pipes for storage. Each transport pipe can switch between two different storage bin diameters for storage; S4. Transport the plastics in the storage bin to the label remover and baler for baling.

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