A scrap material recycling device and recycling method for plastic track production

Abstract

The present invention relates to the field of plastic recycling technology, and in particular to a scrap recycling device for the production of plastic runways and a recycling method thereof. The present invention provides a scrap recycling device for the production of plastic runways, comprising a cylinder and a cylinder cover, wherein the cylinder cover is mounted on the top of the cylinder through a fixed column. The present invention, through the joint action of a first driving component, a partitioning component, a second driving component and a crushing component, drives the second rotating cylinder to rotate under the action of the first driving component, cooperates with the movable column, causes multiple capsules to unfold to form a circular baffle, and plays a certain role in separating the upper and lower layers of particles. Under the joint action of the vent, the movable column, the capsule and the first one-way valve, the upper and lower layers of materials are blown to increase the distance between the two layers of particles. Under the action of the second driving component and the crushing component, the agglomerates are broken up to facilitate a more thorough classification.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, and in particular to a scrap recycling device and a recycling method for plastic track production. Background Art

[0002] The plastic track, also known as the all-weather athletics track, has certain elasticity and color, certain UV resistance and aging resistance, and is internationally recognized as the best all-weather outdoor sports field floor material; when recycling the scraps of the plastic track, it generally includes the following steps: Collecting scraps: During the production process of the plastic track, a certain amount of scraps will be generated, including waste and unqualified products generated during the cutting process; Sorting and cleaning: Classify the collected scraps into different types of materials (such as EPDM particles, polyurethane, rubber, etc.), and clean them to remove impurities and contaminants on the surface to ensure the quality of subsequent processing; Crushing and pulverizing: Crushing and pulverizing the cleaned scraps into smaller particles or powders; this step helps to improve the efficiency of reprocessing and facilitates subsequent mixing and molding; Drying: Dry the crushed scraps to reduce the moisture content and avoid affecting product quality in subsequent processing.

[0003] After searching, the Chinese patent announcement number CN106273070B discloses a PET plastic recycling flotation tank to separate the crushed plastic. The above device uses the flotation screw to rotate to stir the material and water, and the PET plastic pieces with a density greater than water sink to the bottom of the water tank body, and the bottle caps and labels with a density less than water float on the water surface. Then, the floating material is transported to the left end of the water tank body and then sent to the left side of the floating material channel through the material stripping sheet, and then transported to the floating material outlet through the floating material screw to be discharged. During the transportation process, the remaining PET plastic pieces continue to be separated from the labels and bottle caps. The sinking PET plastic sheets are transported to the sinking material outlet through the sinking material spiral rod to enter the next process. However, in the process of using the stripping piece to move the floating material, the stripping piece is in the form of a propeller. When the upper material is moved, a vortex may be caused to cause the material at the bottom to float up, resulting in the mixing of high-density materials with low-density materials, resulting in incomplete separation. At the same time, when the material is stirred by the spiral rod, when the material is poured into the water, the surface tension of the water will pull the wet particles together to form agglomerates, and the propeller cannot break up the agglomerates, which will also affect the separation effect. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a scrap material recovery device and a recovery method for plastic track production, which can effectively solve the problem that the flotation process of the prior art is easy to mix with each other, resulting in low purity of the final material and limiting the subsequent application scope.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The present invention provides a scrap material recovery device for the production of a plastic track, comprising a cylinder and a cylinder cover, wherein the cylinder cover is installed on the top of the cylinder through a fixing column, and a first driving component and a partitioning component are arranged on the top of the cylinder cover, wherein the first driving component is used to drive the partitioning component;

[0007] The partition assembly comprises a first rotating cylinder, a second rotating cylinder and a vent pipe, the vent pipe is connected to the second rotating cylinder in an airtight rotation manner, two groups of vent holes are provided on the outer wall of the vent pipe, the second rotating cylinder is rotatably mounted in the first rotating cylinder, the first rotating cylinder is rotatably mounted on the bottom of the cylinder cover, two groups of arc grooves are provided on the outer wall of the first rotating cylinder, two adjacent and different groups of arc grooves are staggered up and down, movable columns are provided in each of the arc grooves, one end of each movable column passes through the arc groove and is connected to the second rotating cylinder, a plurality of fixed covers distributed in an annular array are fixedly mounted on the outer wall of the first rotating cylinder, movable covers are relatively provided inside the plurality of fixed covers, a plurality of air guide pipes are fixedly connected to the top of the movable cover, the tops of the plurality of air guide pipes are connected to the bottoms of the corresponding movable columns, a folding bag arranged in a folding fan shape is provided between the fixed cover and the movable cover, a plurality of fan ribs are fixedly connected to the top and bottom of the folding bag, a one-way hole is provided on the top of the fan ribs, the folding bag has a plurality of first discharge holes, and a plurality of groups of the first discharge holes are respectively located between the two fan ribs;

[0008] At least one crushing assembly is disposed on the outer wall of the first rotating cylinder, two of the crushing assemblies are located at the bottom of one of the fixed covers, a second driving assembly is disposed on the top of the cylinder, and a turbidity sensor is disposed on the side wall of the cylinder.

[0009] Preferably, the first driving assembly includes a servo motor installed on the top of the cylinder cover, the output end of the servo motor is fixedly connected to a first gear, the outer wall of the second rotating cylinder is fixedly connected to a second gear, and the first gear is meshed with the second gear.

[0010] Preferably, the crushing assembly includes a stirring plate, which is a right triangle and fixedly mounted on the outer wall of the first rotating cylinder. Two rectangular grooves are provided on the bottom inner wall of the cylinder. A movable plate is slidably mounted inside the rectangular groove. The movable plate is composed of the same right triangle and rectangle as the stirring plate, and the inclined surface of the movable plate is in contact with the inclined surface of the stirring plate. A placement box is fixedly connected to the bottom of the cylinder, and a plurality of first springs are fixedly connected to the inside of the placement box. The top of the first spring is fixedly connected to the bottom of the movable plate, and the movable plate is slidably mounted on the placement box. A blocking assembly is provided on the inner wall of the cylinder.

[0011] Preferably, the blocking assembly includes a mounting groove opened on the inner wall of the cylinder, the mounting groove is connected to the rectangular groove, a plurality of second springs are fixedly connected inside the mounting groove, the other end of the second spring is fixedly connected to a rectangular plate, and the rectangular plate is fitted with the side wall of the movable plate.

[0012] Preferably, the second driving assembly includes a gear disk rotatably mounted on the outer wall of the first rotating cylinder, two rotating shafts are rotatably mounted on the top of the cylinder, the outer walls of the two rotating shafts are fixedly connected with a third gear, the third gear is meshed with the gear disk, the outer wall of the rotating shaft is fixedly connected with a push plate, the inner wall of the cylinder is provided with an arc-shaped shifting plate via a hinge column, the interior of the arc-shaped shifting plate is fixedly connected with a third spring, the top of the third spring is fixedly connected with an arc plate, the arc plate is slidably connected to the arc-shaped shifting plate, and the outer wall of the arc-shaped shifting plate is provided with an inflation assembly.

[0013] Preferably, the inflation assembly includes an inflatable bag installed on the outer wall of the arc-shaped paddle, the other side of the inflatable bag is fixedly connected to the interior of the cylinder, the outer wall of the inflatable bag is connected to a one-way air inlet valve, and the other end of the one-way air inlet valve is fixedly passed through the side wall of the cylinder, and a one-way air outlet valve is provided on one side of the inflatable bag.

[0014] Preferably, the arc plate is arranged in an arc shape near the top of the inflatable bag.

[0015] A recycling method of a scrap material recycling device for producing a plastic track, specifically comprising the following steps:

[0016] S1: Water is injected into the cylinder. A concentration sensor is set inside the cylinder. Salt is added into the cylinder through the control device using an external device. When the concentration sensor detects that the concentration of the salt water is 1.2g / cm³, the addition of salt is stopped. Then the crushed and screened particles are poured into the cylinder. After a period of rest, most of the polyurethane particles (1.1g / cm³) float on the surface of the salt water, and the EPDM particles (1.3g / cm³) and rubber (1.5g / cm³) sink to the bottom of the cylinder, and some polyurethane particles will sink to the bottom;

[0017] S2: Connect the ventilation pipe to the external gas transmission equipment, and then start the first driving component. Under the action of the first driving component, the second rotating cylinder is driven to rotate. The rotation of the second rotating cylinder drives the movable column to rotate in the arc groove. In cooperation with the air guide pipe, the movable cover is driven to move and the folding bag is unfolded. Multiple groups of fixed covers, movable covers and folding bags form a circular baffle, that is, when the movable column rotates to the other end of the arc groove, the first rotating cylinder can be driven to rotate. Due to the surface tension of the particles poured into the water, the wet particles are pulled together to form agglomerates. The first rotating cylinder can also drive the crushing component to rotate while rotating. The crushing component crushes these agglomerates and separates the polyurethane particles wrapped in the EPDM particles and rubber particles. Under the joint action of the blocking component, the EPDM particles and rubber particles are prevented from flowing out of the cylinder. The polyurethane particles float to the surface of the salt water through the first discharge hole, so that the separation of the materials is more thorough.

[0018] S3: Under the continuous action of the first driving component, the second rotating cylinder is continuously driven to rotate. When the movable column is connected to the vent hole, the gas enters the folding bag through the movable column and the air guide tube, and is ejected through the one-way hole, thereby increasing the distance between the bottom layer and the top layer of the material, which is more conducive to pushing the polyurethane particles floating on the surface of the salt water out of the cylinder;

[0019] S4: When the turbidity sensor detects that there are no particles floating between the active column and the upper particles, the turbidity sensor can be used to transmit a signal to the control device, and the control device continues to add salt into the cylinder, and then uses the concentration sensor to detect the concentration of the salt water. When the concentration of the salt water reaches 1.4g / cm³, stop adding salt, and then separate the EPDM particles, and then repeat the above steps to separate the rubber particles.

[0020] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0021] 1. Through the joint action of the first driving component, the separation component, the second driving component and the crushing component, under the action of the first driving component, the second rotating cylinder is driven to rotate, and the movable column is cooperated to cause multiple folding capsules to unfold to form a circle, which is located between the polyurethane particle layer floating on the surface of the salt water and the EPDM particle and rubber particle layer sinking to the bottom, playing a certain segmentation role. Under the joint action of the vent hole, the movable column, the folding capsule and the one-way hole, the upper layer material and the lower layer material are blown to increase the distance between the two layers of particles, and at the same time, it helps the bubbles to float up, driving the floating particles with relatively small density to rise quickly. At the same time, the bubbles can increase the height of the salt water, and the particles are pushed out of the cylinder with the cooperation of the second driving component to avoid excessive water loss. The bubbles blown downward help to blow away the particles below, so that the particles with relatively small density float up. Under the action of the second driving component and the crushing component, the agglomerates are broken up, which is convenient for more thorough classification.

[0022] 2. Under the joint action of the inflation component and the second driving component, during the rotation of the first rotating cylinder, the toothed disc, the third gear, and the rotating shaft drive the push plate to act on the arc plate, thereby driving the arc-shaped paddle plate to pry the upper particles out of the cylinder. During the movement of the arc-shaped paddle plate, under the action of the inflation bag, the inflation bag covers the movement path of the arc-shaped paddle plate to prevent particles from being sandwiched between the arc-shaped paddle plate and the inner wall of the cylinder when the arc-shaped paddle plate is reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a schematic diagram of a local three-dimensional structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure when the local structure of the present invention is used;

[0027] Figure 4 It is a schematic diagram of the three-dimensional structure of the capsule of the present invention when it is unfolded;

[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the first rotating cylinder of the present invention;

[0029] Figure 6 It is a schematic diagram of the three-dimensional structure of the first rotating cylinder, the second rotating cylinder and the ventilation pipe of the present invention;

[0030] Figure 7 is a schematic structural diagram of the second driving assembly of the present invention;

[0031] Figure 8 It is a partial top view of the three-dimensional structure of the present invention;

[0032] Fig. 9 A schematic diagram of the three-dimensional structure of the inflation component and the second drive component of the present invention;

[0033] Fig.10 It is a schematic diagram of the cross-sectional structure of the cylinder of the present invention;

[0034] Fig.11 It is a schematic diagram of a partial three-dimensional structure of a crushing assembly of the present invention;

[0035] Fig.12 It is a partial top view of the structure of the present invention.

[0036] Reference numerals: 1, cylinder; 2, cylinder cover; 3, first drive assembly; 31, servo motor; 32, first gear; 33, second gear; 4, partition assembly; 41, fixed cover; 42, movable cover; 43, folding bag; 44, fan rib; 45, first discharge hole; 46, one-way hole; 47, movable column; 48, air guide tube; 49, first rotating cylinder; 410, arc groove; 411, second rotating cylinder; 412, ventilation pipe; 413, ventilation hole; 5, second drive assembly; 51. Toothed disc; 52. Third gear; 53. Rotating shaft; 54. Pushing plate; 55. Arc-shaped paddle plate; 56. Arc-shaped plate; 6. Inflatable component; 61. Inflatable bag; 62. One-way air inlet valve; 63. One-way air outlet valve; 7. Crushing component; 71. Stirring plate; 72. Movable plate; 73. Second discharge hole; 74. First spring; 75. Placement box; 76. Rectangular groove; 8. Blocking component; 81. Rectangular plate; 82. Second spring; 83. Mounting groove; 9. Turbidity sensor. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention will be further described below in conjunction with the embodiments.

[0039] Example: Refer to Figures 1 to 12 A scrap material recovery device for the production of a plastic track includes a cylinder body 1 and a cylinder cover 2. The cylinder cover 2 is installed on the top of the cylinder body 1 through a fixing column. A first driving component 3 and a partition component 4 are arranged on the top of the cylinder cover 2. The first driving component 3 is used to drive the partition component 4.

[0040] Specifically, refer to Figures 3 to 7The partition assembly 4 includes a first rotating cylinder 49, a second rotating cylinder 411 and a vent pipe 412. The vent pipe 412 is airtightly rotatably connected to the second rotating cylinder 411. Two groups of vent holes 413 are provided on the outer wall of the vent pipe 412. The second rotating cylinder 411 is rotatably installed in the first rotating cylinder 49. The first rotating cylinder 49 is rotatably installed at the bottom of the cylinder cover 2. Two groups of arc grooves 410 are provided on the outer wall of the first rotating cylinder 49. Two adjacent and different groups of arc grooves 410 are staggered up and down. A movable column 47 is provided in each of the arc grooves 410. One end of the movable column 47 passes through the arc groove 410 and is connected to the second rotating cylinder 411. A plurality of fixed covers 41 distributed in an annular array are fixedly installed on the outer wall of a rotating cylinder 49, and movable covers 42 are arranged relatively inside the plurality of fixed covers 41, and a plurality of air guide tubes 48 are fixedly connected to the top of the movable cover 42, and the tops of the plurality of air guide tubes 48 are connected to the bottoms of the corresponding movable columns 47, and a folding bag 43 arranged in a folding fan shape is arranged between the fixed cover 41 and the movable cover 42, and a plurality of fan ribs 44 are fixedly connected to the top and bottom of the folding bag 43, and a one-way hole 46 is arranged on the top of the fan rib 44, and the folding bag 43 has a plurality of first discharge holes 45, and the plurality of groups of first discharge holes 45 are respectively located between two fan ribs 44;

[0041] At least one crushing assembly 7 is disposed on the outer wall of the first rotating cylinder 49 , and two crushing assemblies 7 are located at the bottom of one of the fixed covers 41 . A second driving assembly 5 is disposed on the top of the cylinder 1 , and a turbidity sensor 9 is disposed on the side wall of the cylinder 1 .

[0042] Further, see Figure 1 The first driving assembly 3 includes a servo motor 31 on the top of the cylinder cover 2, the output end of the servo motor 31 is fixedly connected to a first gear 32, the outer wall of the second rotating cylinder 411 is fixedly connected to a second gear 33, and the first gear 32 is meshed with the second gear 33.

[0043] Further, see Figure 3 , Fig.10 and Fig.11The crushing assembly 7 includes a stirring plate 71, which is a right-angled triangle. The stirring plate 71 is fixedly mounted on the outer wall of the first rotating cylinder 49. Two rectangular grooves 76 are provided on the inner wall of the bottom of the cylinder 1. A movable plate 72 is slidably mounted inside the rectangular groove 76. The movable plate 72 is composed of the same right-angled triangle and rectangle as the stirring plate 71, and the inclined surface of the movable plate 72 is in line with the inclined surface of the stirring plate 71. A placement box 75 is fixedly connected to the bottom of the cylinder 1. A plurality of first springs 74 are fixedly connected to the interior of the placement box 75. The top of the first spring 74 is fixedly connected to the bottom of the movable plate 72. The movable plate 72 is slidably mounted with the placement box 75. A blocking assembly 8 is provided on the inner wall of the cylinder 1. The blocking assembly 8 includes a mounting groove 83 provided on the inner wall of the cylinder 1. The mounting groove 83 is connected to the rectangular groove 76. A plurality of second springs 82 are fixedly connected to the interior of the mounting groove 83. The other end of the second spring 82 is fixedly connected to a rectangular plate 81, and the rectangular plate 81 is in line with the side wall of the movable plate 72.

[0044] Further, see Figures 8 to 9 The second driving assembly 5 includes a toothed disc 51 rotatably mounted on the outer wall of the first rotating cylinder 49, two rotating shafts 53 are rotatably mounted on the top of the cylinder 1, the outer walls of the two rotating shafts 53 are fixedly connected with third gears 52, the third gears 52 are meshed with the toothed disc 51, the outer wall of the rotating shaft 53 is fixedly connected with a push plate 54, the inner wall of the cylinder 1 is installed with an arc-shaped shifting plate 55 through a hinge column, the inner part of the arc-shaped shifting plate 55 is fixedly connected with a third spring, the top of the third spring is fixedly connected with an arc-shaped plate 56, and the arc-shaped shifting plate 55 is fixedly connected with the outer wall of the cylinder 1. The plate 56 is slidably connected to the arc-shaped shift plate 55, and an inflatable component 6 is provided on the outer wall of the arc-shaped shift plate 55. The inflatable component 6 includes an inflatable bag 61 installed on the outer wall of the arc-shaped shift plate 55, and the other side of the inflatable bag 61 is fixedly connected to the interior of the cylinder 1. A one-way air inlet valve 62 is provided on the outer wall of the inflatable bag 61, and the other end of the one-way air inlet valve 62 is fixedly passed through the side wall of the cylinder 1. A one-way air outlet valve 63 is provided on one side of the inflatable bag 61, and the arc plate 56 is arranged in an arc shape near the top of the inflatable bag 61.

[0045] The working principle of this device is as follows:

[0046] When in use, water is first injected into the cylinder 1, and then the crushed particles are poured into the cylinder 1. Salt is added into the cylinder 1 through the control device using an external device. A concentration sensor is provided in the cylinder 1. After the concentration sensor detects that the concentration of the salt water is 1.2g / cm³, the addition of salt is stopped, and then the crushed and screened particles are poured into the cylinder 1. After a period of rest, most of the polyurethane particles (1.1g / cm³) float on the surface of the salt water, and the EPDM particles (1.3g / cm³) and rubber (1.5g / cm³) sink to the bottom of the cylinder 1, and a part of the polyurethane particles will be brought in to sink to the bottom;

[0047] The second rotating cylinder 411 is connected to an external gas transmission device, and then the servo motor 31 is started. The servo motor 31 drives the first gear 32 to rotate, and the second gear 33 rotates under the meshing transmission of the first gear 32, causing the second rotating cylinder 411 to rotate, and then drives the movable column 47 to start rotating from one end of the corresponding arc groove 410. During the rotation of the movable column 47, under the cooperation of the air guide tube 48, the movable cover 42 is driven to move out of the fixed cover 41, and then the folding bag 43 is unfolded, and multiple fan bones 44 are moved out of the fixed cover 41 to form a circular baffle. Due to the surface tension of the water, the wet particles will be pulled together to form agglomerates. During the rotation of the first rotating cylinder 49, the stirring plate 71 is driven to rotate. Between the stirring plate 71 and the movable plate 72 With the cooperation of the second discharge hole 73, the particles pass through the second discharge hole 73, and the inclined surface of the stirring plate 71 and the inclined surface of the movable plate 72 work together to crush and separate the agglomerates. The stirring plate 71 continues to move under the action of the first rotating cylinder 49, and the inclined surface of the stirring plate 71 exerts a force on the inclined surface of the movable plate 72, so that the bottom of the movable plate 72 exerts a force on the first spring 74, causing the movable plate 72 to move downward. In the initial state, the second spring 82 is in an extrusion state. During the period when the movable plate 72 moves downward, the effect on the rectangular plate 81 gradually decreases. Under the reaction of the second spring 82, the other side of the rectangular plate 81 is always attached to the surface of the movable plate 72, ensuring that the particles will not fall into the placement box 75 through the rectangular groove 76;

[0048] When the second rotating cylinder 411 drives the movable column 47 to rotate, when the vent hole 413 is connected with the movable column 47, the gas enters the folding bag 43 through the movable column 47 and the air guide tube 48, and then is discharged through the one-way hole 46, thereby increasing the distance between the upper layer material and the lower layer material, ensuring that the upper layer will not bring out the lower layer particles when discharging the low-density particles, so as to achieve a better separation effect;

[0049] While the particles at the bottom are being crushed and isolated, the first rotating cylinder 49 drives the toothed disc 51 to rotate, and the third gear 52 drives the rotating shaft 53 to rotate under the meshing transmission of the toothed disc 51, so that the push plate 54 acts on the arc-shaped paddle plate 55, driving the arc-shaped paddle plate 55 to paddle the particles floating on the surface of the salt water, and discharge the particles out of the cylinder 1. During the operation of the arc-shaped paddle plate 55, the deflated inflatable bag 61 is pulled, and negative pressure is formed inside the inflatable bag 61. At this time, the one-way air outlet valve 63 is in a closed state, and the gas enters the inflatable bag through the one-way air inlet valve 62. The air bag 61 is inflated inside to prevent particles from floating to the salt water surface within the trajectory of the arc-shaped paddle 55 during the movement of the arc-shaped paddle 55. When the arc-shaped paddle 55 is reset, part of the particles are located between the outer wall of the arc-shaped paddle 55 and the inner wall of the cylinder 1. When the EPDM particles are subsequently separated, polyurethane particles are mixed in, which affects the separation effect. Since a torsion spring is provided between the hinge column and the cylinder 1, when the arc-shaped paddle 55 paddles out the particles, it is limited to the inner wall of the cylinder 1. Under the action of the inner wall of the cylinder 1, the movement of the arc-shaped paddle 55 and the arc-shaped plate 56 is prevented. , the push plate 54 continues to act on the arc plate 56. Since the top of the arc plate 56 is an arc surface, the arc plate 56 moves downward, exerting a certain force on the third spring, and the arc plate 56 is received in the arc-shaped shifting plate 55, and the push plate 54 continues to move. When the push plate 54 has no force on the arc plate 56, the arc plate 56 is reset under the action of the third spring, and the arc-shaped shifting plate 55 is driven to reset under the action of the torsion spring. The arc-shaped shifting plate 55 squeezes the inflatable bag 61 during the resetting process, and the gas in the inflatable bag 61 is discharged through the one-way outlet valve 63, and the one-way The particles around the air outlet valve 63 are blown away. Since there are two one-way air outlet valves 63 blowing oppositely, the particles will move to the middle, which is convenient for the arc-shaped paddle 55 to pry the particles next time and discharge them from the cylinder 1. When the turbidity sensor 9 detects that no particles move within the layer spacing, the signal is transmitted to the control device. The control device continues to add salt into the cylinder 1 through an external device. When the concentration sensor detects that the concentration of the salt water reaches 1.4g / cm³, the salt addition is stopped and the above steps are repeated to separate the EPDM particles and rubber particles respectively.

[0050] A recycling method of a scrap material recycling device for producing a plastic track, specifically comprising the following steps:

[0051] S1: Water is injected into the cylinder 1. A concentration sensor is provided inside the cylinder 1. Salt is added into the cylinder 1 through an external device via a control device. When the concentration sensor detects that the concentration of the salt water is 1.2 g / cm³, the addition of salt is stopped. Then, the crushed and screened particles are poured into the cylinder 1. After a period of rest, most of the polyurethane particles (1.1 g / cm³) float on the surface of the salt water, and the EPDM particles (1.3 g / cm³) and rubber (1.5 g / cm³) sink to the bottom of the cylinder 1, and some polyurethane particles will be brought in to sink to the bottom;

[0052] S2: Connect the vent pipe 412 to the external gas transmission equipment, and then start the first driving component 3. Under the action of the first driving component 3, the second rotating cylinder 411 is driven to rotate. The rotation of the second rotating cylinder 411 drives the movable column 47 to rotate in the arc groove 410. In cooperation with the air guide pipe 48, the movable cover 42 is driven to move to unfold the folding bag 43. Multiple groups of fixed covers 41, movable covers 42 and folding bags 43 form a circular baffle, that is, when the movable column 47 rotates to the other end of the arc groove 410, it can drive the first rotating cylinder 49 to rotate. Due to the surface tension of the particles poured into the water, the wet particles are pulled together to form agglomerates. When the first rotating cylinder 49 rotates, it can drive the crushing component 7 to rotate. The crushing component 7 crushes these agglomerates and separates the polyurethane particles wrapped in the EPDM particles and rubber particles. Under the joint action of the blocking component 8, the EPDM particles and rubber particles are prevented from flowing out of the cylinder 1. The polyurethane particles float to the surface of the salt water through the first discharge hole 45, so that the separation of the materials is more thorough.

[0053] S3: Under the continuous action of the first driving assembly 3, the second rotating cylinder 411 is continuously driven to rotate. When the movable column 47 is connected to the vent hole 413, the gas enters the folding bag 43 through the movable column 47 and the air guide tube 48, and is ejected through the one-way hole 46, thereby increasing the distance between the bottom layer and the top layer of the material, which is more conducive to pushing the polyurethane particles floating on the surface of the salt water out of the cylinder 1;

[0054] S4: When the turbidity sensor 9 detects that there are no particles floating between the active column 47 and the upper particles, the turbidity sensor 9 can be used to transmit a signal to the control device, and the control device continues to add salt into the cylinder 1, and then uses the concentration sensor to detect the concentration of the salt water. When the concentration of the salt water reaches 1.4g / cm³, the salt addition is stopped, and the EPDM particles are separated, and then the above steps are repeated to separate the rubber particles.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A scrap material recovery device for plastic track production, characterized in that: It comprises a cylinder (1) and a cylinder cover (2), wherein the cylinder cover (2) is mounted on the top of the cylinder (1) via a fixing column, and a first driving component (3) and a partition component (4) are arranged on the top of the cylinder cover (2), wherein the first driving component (3) is used to drive the partition component (4); The partition assembly (4) comprises a first rotating cylinder (49), a second rotating cylinder (411) and a ventilation pipe (412); the ventilation pipe (412) is airtightly rotatably connected to the second rotating cylinder (411); the outer wall of the ventilation pipe (412) is provided with two groups of ventilation holes (413); the second rotating cylinder (411) is rotatably mounted in the first rotating cylinder (49); the first rotating cylinder (49) is rotatably mounted at the bottom of the cylinder cover (2); the outer wall of the first rotating cylinder (49) is provided with two groups of arc grooves (410); two adjacent and different groups of arc grooves (410) are staggered up and down; each of the arc grooves (410) is provided with a movable column (47); one end of the movable column (47) passes through the arc groove (410) and is connected to the second rotating cylinder (411). The outer wall of the first rotating cylinder (49) is fixedly mounted with a plurality of fixed covers (41) distributed in an annular array, a movable cover (42) is arranged inside the fixed cover (41), a plurality of air guide tubes (48) are fixedly connected to the top of the movable cover (42), the tops of the plurality of air guide tubes (48) are connected to the bottoms of the corresponding movable columns (47), a folding bag (43) folded in a folding fan shape is arranged between the fixed cover (41) and the movable cover (42), a plurality of fan ribs (44) are fixedly connected to the top and bottom of the folding bag (43), a one-way hole (46) is arranged on the top of the fan rib (44), and the folding bag (43) has a plurality of first discharge holes (45), and a plurality of groups of the first discharge holes (45) are respectively located between two fan ribs (44); At least one crushing assembly (7) is arranged on the outer wall of the first rotating cylinder (49), and the crushing assembly (7) is located at the bottom of one of the fixed covers (41); a second driving assembly (5) is arranged on the top of the cylinder (1); and a turbidity sensor (9) is arranged on the side wall of the cylinder (1); The crushing assembly (7) comprises a stirring plate (71), the stirring plate (71) is a right triangle, the stirring plate (71) is fixedly mounted on the outer wall of the first rotating cylinder (49), the bottom inner wall of the cylinder (1) is provided with two rectangular grooves (76), a movable plate (72) is slidably mounted inside the rectangular groove (76), the movable plate (72) is composed of the same right triangle and rectangle as the stirring plate (71), and the inclined surface of the movable plate (72) is in contact with the inclined surface of the stirring plate (71), a placement box (75) is fixedly connected to the bottom of the cylinder (1), a plurality of first springs (74) are fixedly connected inside the placement box (75), the top end of the first spring (74) is fixedly connected to the bottom of the movable plate (72), the movable plate (72) and the placement box (75) are slidably mounted, and a blocking assembly (8) is provided on the inner wall of the cylinder (1); The second driving assembly (5) comprises a toothed disc (51) rotatably mounted on the outer wall of the first rotating cylinder (49); two rotating shafts (53) are rotatably mounted on the top of the cylinder (1); the outer walls of the two rotating shafts (53) are fixedly connected to third gears (52); the third gears (52) are meshed with the toothed discs (51); the outer walls of the rotating shafts (53) are fixedly connected to a push plate (54); the inner wall of the cylinder (1) is mounted with an arc-shaped shifting plate (55) via a hinge column; the interior of the arc-shaped shifting plate (55) is fixedly connected to a third spring; the top of the third spring is fixedly connected to an arc-shaped plate (56); the arc-shaped plate (56) is slidably connected to the arc-shaped shifting plate (55); and the outer wall of the arc-shaped shifting plate (55) is provided with an inflatable assembly (6); The inflation assembly (6) comprises an inflation bag (61) mounted on the outer wall of the arc-shaped shifting plate (55); the other side of the inflation bag (61) is fixedly connected to the interior of the cylinder (1); a one-way air inlet valve (62) is provided on the outer wall of the inflation bag (61); the other end of the one-way air inlet valve (62) is fixedly passed through the side wall of the cylinder (1); and a one-way air outlet valve (63) is provided on one side of the inflation bag (61).

2. A scrap material recovery device for plastic track production according to claim 1, characterized in that: The first driving assembly (3) comprises a servo motor (31) mounted on the top of the cylinder cover (2); an output end of the servo motor (31) is fixedly connected to a first gear (32); an outer wall of the second rotating cylinder (411) is fixedly connected to a second gear (33); the first gear (32) meshes with the second gear (33).

3. The scrap material recovery device for plastic track production according to claim 1 is characterized in that: The blocking assembly (8) comprises a mounting groove (83) formed on the inner wall of the cylinder (1), the mounting groove (83) being connected to the rectangular groove (76), a plurality of second springs (82) being fixedly connected inside the mounting groove (83), the other end of the second spring (82) being fixedly connected to a rectangular plate (81), and the rectangular plate (81) being in contact with the side wall of the movable plate (72).

4. The scrap material recovery device for plastic track production according to claim 1 is characterized in that: The arc plate (56) is arranged in an arc shape near the top of the inflatable bag (61).

5. A method for recycling scraps used in the production of plastic tracks, used in the recycling device described in any one of claims 1 to 4, characterized in that: The following steps are involved: S1: water is injected into the cylinder (1). A concentration sensor is provided inside the cylinder (1). Salt is added into the cylinder (1) through an external device via a control device. After the concentration sensor detects that the concentration of the salt water is 1.2 g / cm³, the addition of salt is stopped. Then, the crushed and screened particles are poured into the cylinder (1). After a period of rest, most of the polyurethane particles (1.1 g / cm³) float on the surface of the salt water, while the EPDM particles (1.3 g / cm³) and rubber (1.5 g / cm³) sink to the bottom of the cylinder (1), and a portion of the polyurethane particles are brought in to sink to the bottom. S2: Connect the ventilation pipe (412) to the external gas transmission equipment, and then start the first driving component (3). Under the action of the first driving component (3), the second rotating cylinder (411) is driven to rotate. The rotation of the second rotating cylinder (411) drives the movable column (47) to rotate in the arc groove (410). In cooperation with the air guide pipe (48), the movable cover (42) is driven to move to unfold the folding bag (43). The multiple groups of fixed covers (41), movable covers (42) and folding bags (43) form a circular baffle. That is, when the movable column (47) rotates to the other end of the arc groove (410), the movable cover (42) can be opened. The first rotating drum (49) is driven to rotate. Due to the surface tension of the particles poured into the water, the wet particles are pulled together to form agglomerates. The first rotating drum (49) can also drive the crushing assembly (7) to rotate while the first rotating drum (49) rotates. The crushing assembly (7) crushes the agglomerates and separates the polyurethane particles wrapped in the EPDM particles and rubber particles. Under the joint action of the blocking assembly (8), the EPDM particles and rubber particles are prevented from flowing out of the drum (1). The polyurethane particles float to the surface of the salt water through the first discharge hole (45), so that the separation of the materials is more thorough. S3: Under the continuous action of the first driving assembly (3), the second rotating cylinder (411) is continuously driven to rotate. When the movable column (47) is connected to the vent hole (413), gas enters the folding bag (43) through the movable column (47) and the air guide tube (48) and is ejected through the one-way hole (46), thereby increasing the distance between the bottom layer and the top layer of the material, and making it easier to push the polyurethane particles floating on the surface of the salt water out of the cylinder (1); S4: When the turbidity sensor (9) detects that there are no particles floating between the movable column (47) and the upper particles, the turbidity sensor (9) can be used to transmit a signal to the control device, and the control device continues to add salt into the cylinder (1). The concentration sensor is then used to detect the concentration of the salt water. When the concentration of the salt water reaches 1.4 g / cm³, the addition of salt is stopped, and the EPDM particles are separated. Then, the above steps are repeated to separate the rubber particles.

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