PET blister tray crushing device and crushing process

Abstract

The invention relates to the field of plastic recycling treatment, and discloses a PET blister tray crushing device and a crushing technology.The PET blister tray crushing device comprises a box body, a storage bin is fixedly connected to the bottom of the box body, an impurity removing assembly is arranged in the middle of the box body, a collecting assembly is installed at the bottom of the impurity removing assembly, and a driving assembly is arranged on the outer side of the box body; a driving assembly is arranged in the box body, a crushing assembly is arranged outside the driving assembly, the driving assembly acts on the crushing assembly to crush the PET plastic uptake disc, the crushing assembly is combined with a static electricity elimination assembly to neutralize static electricity carried by crushed materials, a dust collection assembly is arranged in the middle of the box body, and a screening assembly is arranged in the box body. An electromagnet structure is formed by the magnetic plate, the fixing frame, the iron core and the coil, metal chippings in falling crushed aggregates are magnetically absorbed and collected through the electromagnet, the metal chippings fall into the drawer of the collecting box, the metal chippings in the crushed aggregates are removed, and the recovery rate of PET plastic trays is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of plastic recycling, in particular to a PET blister tray breaking device and a breaking process. BACKGROUND

[0002] With the rapid development of modern packaging industry, polyethylene terephthalate is widely used in the manufacture of disposable blister trays, packaging boxes and other products due to its excellent physical properties and transparency. However, these discarded PET blister trays have brought huge environmental pressure and resource waste problems. Therefore, efficient recycling and recycling of discarded PET blister trays not only meet the urgent needs of environmental protection, but also have significant economic value.

[0003] In the PET recycling process, breaking is the primary and crucial pretreatment step, which aims to reduce the volume of large and irregularly shaped blister trays and make them into uniform size fragments to facilitate subsequent cleaning, melting and regranulation.

[0004] Currently, the conventional plastic breaking equipment on the market often uses single impact or shear breaking structure when processing PET blister trays. High-speed impact can easily cause excessive pulverization of materials, resulting in a large amount of dust that is difficult to handle, and the particle size of the discharged material is often uneven, affecting the quality of the regenerated material.

[0005] PET materials are prone to generate and accumulate static electricity during the breaking process due to intense friction. The adsorption effect of static electricity can cause fine dust to adhere firmly to the surface of the fragments, and also cause the fragments to agglomerate with each other, forming clusters that are difficult to separate. This phenomenon seriously hinders the subsequent screening and dust removal process. Even if equipped with air separation or screening devices, it is difficult to effectively separate dust from fragments, resulting in low purity of the final product. SUMMARY

[0006] The purpose of the present application is to provide a PET blister tray breaking device and a breaking process, which solves the problem that the breaking equipment cannot effectively remove metal debris during the breaking process.

[0007] To achieve the above purpose, the present application is realized by the following technical scheme:

[0008] A PET blister tray crushing device, including a box, the bottom of the box is fixedly connected with a storage bin, the middle part of the box is provided with a impurity removal assembly, the bottom of the impurity removal assembly is provided with a collection assembly, the outside of the box is provided with a driving assembly, the outside of the driving assembly is provided with a crushing assembly, the driving assembly acts on the crushing assembly to crush the PET blister tray, the crushing assembly is combined with an electrostatic elimination assembly to neutralize the static electricity carried by the crushed material, the middle part of the box is provided with a dust collection assembly, the inside of the box is provided with a screening assembly, the screening assembly is arranged directly above the dust collection assembly;

[0009] The impurity removal assembly includes a mounting frame, the mounting frame is fixedly connected in the box, the outside of the mounting frame is fixedly connected with a generator, the middle part of the mounting frame is slidably connected with a fixed frame, the bottom of the fixed frame is fixedly connected with a magnetic plate, the top of the fixed frame is fixedly connected with a handle, the middle part of the fixed frame is fixedly connected with a sleeve, the inside of the sleeve is fixedly connected with an iron core, and the outside of the iron core is wound with a coil.

[0010] Preferably, the electrostatic elimination assembly includes two ion wind knives, two ion wind knives are fixedly connected in the middle of the box, two ion wind knives are fixedly connected with an air outlet in the middle, the outside of the storage bin is fixedly connected with an air pump, the output end of the air pump is fixedly connected with a pipeline, the end of the pipeline is fixedly connected on one side of the ion wind knife, and the middle part of the pipeline is provided with a valve.

[0011] Preferably, the dust collection assembly includes a dust collection bag, the middle part of the dust collection bag is fixedly connected with a connecting cylinder, the top of the connecting cylinder is fixedly connected with a shell, the outside of the shell is fixedly connected with a dust collection plate, the middle part of the dust collection plate is fixedly connected with a suction port, the inside of the shell is rotatably connected with an impeller, and the inside of the box is fixedly connected with a flow guide plate one and a flow guide plate two.

[0012] Preferably, the collection assembly includes a dust collection box, the dust collection box is fixedly connected in the middle of the box, the inside of the dust collection box is slidably connected with a drawer, and the dust collection box is fixedly connected at the bottom of the mounting frame.

[0013] Preferably, the driving assembly includes a shell, the shell is fixedly connected on the outside of the box, the outside of the shell is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a chain wheel, the side of the box is rotatably connected with another chain wheel, and the outside of the two chain wheels is sleeved with a chain.

[0014] Preferably, the crushing assembly comprises two rotating shafts I, the two rotating shafts I are rotatably connected to the middle part of the box body, the outer part of the two rotating shafts I is fixedly connected with shearing rollers, one end of one of the rotating shafts I is fixedly connected with a set of belt pulleys, one of the sprockets is fixedly connected to one end of the other rotating shaft I, the middle part of the box body is rotatably connected with two rotating shafts II, the outer part of the two rotating shafts II is fixedly connected with crushing rollers, one end of one of the rotating shafts II is fixedly connected with a set of belt pulleys, a set of sprockets is fixedly connected to one end of the other rotating shaft II, and the outer part of the two belt pulleys is sleeved with a synchronous belt.

[0015] Preferably, the screening assembly comprises a vibration motor, the vibration motor is fixedly connected to the outer part of the box body, the middle part of the vibration motor is fixedly connected with a sieve plate, the sieve plate is arranged in the inner part of the box body, and the middle part of the sieve plate is provided with sieve holes.

[0016] Preferably, the bottom of the storage bin is fixedly connected with a base, the dust absorption plate is fixedly connected to the middle part of the box body, and the two ion wind knives are arranged directly above the shell.

[0017] Preferably, the top of the box body is fixedly connected with a bin body, the outer part of the bin body is rotatably connected with a closing door, the outer part of the bin body is fixedly connected with a feeding hopper, and the inner side of the closing door is fixedly connected with an elastic member.

[0018] A crushing process of a PET blister tray crushing device, comprising the following steps:

[0019] S1, feeding is closed: PET blister trays are put into a self-closing feeding port, and after the material enters, the feeding port is automatically closed to isolate dust;

[0020] S2, two-stage crushing: the material passes through the upper shearing roller and the lower crushing roller in turn, is first sheared into blocks at low speed, and is then crushed into uniform fragments at high speed;

[0021] S3, static electricity elimination: ion wind is blown by the ion wind knife to neutralize the static electricity on the surface of the fragments, and the material clustering is prevented;

[0022] S4, vibration dust removal: the fragments move on the inclined vibrating sieve plate, and dust is separated through the sieve holes in the process and is uniformly collected by the dust absorption system;

[0023] S5, magnetic separation of impurities: the fragments fall through the electromagnet, and mixed metal scraps are separated by magnetic attraction;

[0024] S6, classified collection: the clean PET fragments fall into the storage bin, the electromagnet is powered off at a fixed time, and the adsorbed metal impurities fall into the dust collection box below.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. The present application forms an electromagnet structure through a magnetic plate, a fixing frame, a core and a coil, and collects metal scraps in falling broken materials through magnetic absorption by the electromagnet, and when there are more metal scraps on the magnetic plate, the metal scraps on the magnetic plate are dropped into the drawer of the collection box by stopping the generator, so as to remove the metal scraps in the broken materials and improve the recycling rate of PET plastic plates.

[0027] 2. The present application generates a large number of positive and negative ions by ionizing air at high pressure, and generates ion air flow, and the air pump blows the air with positive and negative ions out through the air outlet, actively blows the material surface, quickly neutralizes the static charge carried by the material, completely eliminates static electricity, and makes the PET broken material restore to an independent and free-flowing particle state, and the vibration motor drives the sieve plate to continuously vibrate in the screening assembly, and the dust in the broken material is screened, and the dust is sucked into the dust collection bag through the suction port by the centrifugal force generated by the rotation of the impeller, and is uniformly treated.

[0028] 3. The present application highly integrates five core functions of crushing, static elimination, vibration screening, dust collection and magnetic impurity removal in one box, and forms an automatic and continuous processing line. The material is put in and the clean finished product is output without needing to be transferred for many times or to circulate through different devices. Especially, the design of the impurity removal and collection assembly, the electromagnet can automatically adsorb metal impurities, and through the way of timed power-off, the impurities automatically fall into the drawer type dust collection box below, realizing automatic impurity removal and convenient collection.

[0029] 4. The present application realizes a differential processing mode of low-speed shearing first and high-speed crushing later through the combination of the shearing roller and the crushing roller, and the mode is especially suitable for processing PET blister plate and other high-toughness thin-walled materials, effectively avoids the problems of material jamming or excessive pulverization caused by single crushing mode, ensures the uniformity of the particle size of the discharged material, and lays a good material foundation for all subsequent purification steps. In addition, the closed door at the top of the device realizes automatic closing after feeding by using elastic members, tightly closes the dust in the box, and combines the dust collection assembly to form a double protection, which maximally prevents dust overflow, and protects the cleanliness of the workshop and the health of the operators.

[0030] 5. The present application precisely guides the broken material after screening by tilting the sieve plate in the box, ensures that all materials can be concentrated and orderly dropped into the storage bin through the magnetic selection area, effectively avoids the omission of impurity removal and potential internal blockage caused by material scattering, and protects the stability of the process flow; the entire electromagnet structure can be easily pulled out for cleaning, inspection or maintenance through the handle; the metal impurities and dust are collected by the drawer and the dust collection bag in the external dust collection box, respectively, and the cleaning process is fast, clean and does not affect the operation of the equipment main body. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a perspective view of the present application;

[0032] Figure 2 is a schematic diagram of the generator structure of the present application;

[0033] Figure 3 is a schematic diagram of the box structure of the present application;

[0034] Figure 4 is a schematic diagram of the dust absorption plate structure of the present application;

[0035] Figure 5 is a schematic diagram of the ion wind knife structure of the present application;

[0036] Figure 6 is a schematic diagram of the vibration motor structure of the present application;

[0037] Figure 7 is a schematic diagram of the mounting rack structure of the present application;

[0038] Figure 8 is a schematic diagram of the coil structure of the present application;

[0039] Figure 9 is a schematic diagram of the bin structure of the present application;

[0040] Figure 10 is a process flow diagram of the present application.

[0041] Wherein, 1, box; 2, storage bin; 3, feed hopper; 4, closing door; 5, rotating shaft one; 6, rotating shaft two; 7, chain; 8, vibration motor; 9, connecting cylinder; 10, pipeline; 11, air pump; 12, valve; 13, ion wind knife; 14, synchronous belt; 15, generator; 16, drawer; 17, dust collection bag; 18, shearing roller; 19, driving motor; 20, shell; 21, crushing roller; 22, dust absorption plate; 23, dust collection box; 24, mounting rack; 25, suction port; 26, shell; 27, impeller; 28, air outlet; 29, sieve plate; 30, sieve hole; 31, pulley; 32, handle; 33, magnetic plate; 34, sleeve; 35, iron core; 36, bin; 37, fixing frame; 38, sprocket; 39, deflector one; 40, deflector two; 41, elastic member; 42, base; 43, coil. DETAILED DESCRIPTION

[0042] The following will be described in detail below Figure 1 -APPENDIX Figure 10 , the present application will be further described in detail.

[0043] The application provides a PET blister tray crushing device, which comprises a box body 1, characterized in that a storage bin 2 is fixedly connected to the bottom of the box body 1, a impurity removal assembly is arranged in the middle of the box body 1, a collection assembly is arranged at the bottom of the impurity removal assembly, a driving assembly is arranged on the outer side of the box body 1, a crushing assembly is arranged on the outer side of the driving assembly, the driving assembly acts on the crushing assembly to crush the PET blister tray, the crushing assembly is combined with an electrostatic elimination assembly to neutralize static electricity carried by the crushed material, a dust suction assembly is arranged in the middle of the box body 1, and a screening assembly is arranged in the box body 1 and directly above the dust suction assembly.

[0044] The impurity removal assembly comprises a mounting frame 24 fixedly connected to the inside of the box body 1, a generator 15 fixedly connected to the outer side of the mounting frame 24, a fixed frame 37 slidingly connected to the middle of the mounting frame 24, a magnetic plate 33 fixedly connected to the bottom of the fixed frame 37, a handle 32 fixedly connected to the top of the fixed frame 37, a sleeve 34 fixedly connected to the middle of the fixed frame 37, an iron core 35 fixedly connected to the inside of the sleeve 34 and a coil 43 wound on the outside of the iron core 35.

[0045] Specifically, the material enters the inside of the box body 1 from the top bin 36 through the feeding hopper 3, is first crushed by the crushing assembly, is immediately subjected to electrostatic neutralization reaction by the electrostatic elimination assembly during falling, then enters the screening assembly to be separated by particle size and have dust stripped, meanwhile, the dust suction assembly synchronously sucks away the separated dust, the purified crushed material continues to fall and passes through the magnetic field area of the impurity removal assembly to remove metal impurities, and the pure PET crushed material falls into the storage bin 2 at the bottom of the box body 1. The fixed frame 37, the magnetic plate 33 and the coil 43 form an electromagnet assembly, the generator 15 supplies power for the electromagnet assembly, the coil 43 generates a magnetic field after being electrified, the iron core 35 is magnetized and transmits the magnetic force to the magnetic plate 33, the magnetic plate 33 directly adsorbs the metal scraps in the falling crushed material, when the magnetic plate 33 has too many metal scraps, the generator 15 is turned off at a fixed time to make the electromagnet structure, the current disappears, and the magnetic field generated by the coil 43 disappears. The iron core 35 and the magnetic plate 33 immediately lose magnetism, the metal scraps adsorbed on the magnetic plate 33 fall into the drawer 16 of the dust collection box 23, the drawer 16 is pulled out when the dust collection box 23 is full to process the metal scraps in the drawer 16, the complete separation of the PET crushed material and the concentrated collection of the metal impurities are realized, and the impurity removal efficiency is improved. The electromagnet generates strong and controllable magnetic force, can effectively adsorb tiny metal scraps and ensures the purity of the PET crushed material. The impurity removal function is directly integrated in the crushing box body 1 and follows the screening process, so that the whole processing flow is compact and continuous, and the overall production efficiency is improved. The impurities are concentratedly collected in the drawer 16, only the drawer 16 needs to be pulled out during cleaning, the operation is simple, manual adjustment provides convenience during maintenance, creates extremely favorable conditions for the subsequent screening of the screen plate 29 and dust suction and is a decisive step to improve the purity of the final product.

[0046] Please refer to the attached Figure 1 , attached Figure 2 and attached Figure 5 , the electrostatic elimination assembly includes two ion wind knives 13, two ion wind knives 13 are fixedly connected in the middle of the box body 1, the middle of the two ion wind knives 13 is fixedly connected with the air outlet 28, the outside of the storage bin 2 is fixedly connected with the air pump 11, the output end of the air pump 11 is fixedly connected with the pipeline 10, the end of the pipeline 10 is fixedly connected on one side of the ion wind knife 13, the middle of the pipeline 10 is provided with the valve 12, the bottom of the storage bin 2 is fixedly connected with the base 42.

[0047] Specifically, start the air pump 11, suck the surrounding ordinary air and pressurize and deliver to the ion wind knife 13, utilize the high voltage ionization in the ion wind knife 13 to generate a large number of positive and negative ions, the ion air flow generated by the ion wind knife 13 is blown out at high speed through the air outlet 28, blows on the surface of the falling or vibrating PET scrap, and the electrostatic neutralization reaction occurs, so that the PET scrap is restored to electrical neutrality, the electrostatic charge accumulated on the surface of the scrap is quickly neutralized, greatly improving the efficiency and effect of subsequent vibration screening and dust removal, combined with the magnetic separation and impurity removal assembly, finally obtaining PET scrap with high purity and uniform quality.

[0048] Please refer to the attached Figure 1 , attached Figure 3 and attached Figure 4 , the dust collection assembly includes a dust collection bag 17, the middle of the dust collection bag 17 is fixedly connected with the connecting cylinder 9, the top of the connecting cylinder 9 is fixedly connected with the shell 26, the outside of the shell 26 is fixedly connected with the dust collection plate 22, the middle of the dust collection plate 22 is fixedly connected with the suction port 25, the inside of the shell 26 is rotatably connected with the impeller 27, the inside of the box body 1 is fixedly connected with the flow guide plate one 39 and the flow guide plate two 40. The bottom of the storage bin 2 is fixedly connected with the base 42, the dust collection plate 22 is fixedly connected in the middle of the box body 1, the two ion wind knives 13 are arranged directly above the shell 26.

[0049] Specifically, the screen plate 29 is arranged at an angle inside the box body 1, and a plurality of screen holes 30 are distributed on the screen plate 29. The processed crushed materials fall onto the screen plate 29 and move to the downward material falling port based on the slope and vibration of the vibrating screen plate. Dust falls from the screen holes 30 during the vibration and movement of the crushed materials. When the impeller 27 rotates at a high speed, the blades quickly discharge the surrounding air towards the connecting cylinder 9 and the dust collection bag 17. According to the principle of fluid dynamics, a negative pressure is formed inside the shell 26. A pressure difference is formed between the negative pressure area and the ambient pressure inside the crushing cavity. Under the action of the driving force, the air in the crushing cavity carries fine PET dust and is sucked into the suction port 25 with the lowest pressure from the cavity with the highest pressure. The dust is collected in the dust collection bag 17 through the dust collection plate 22 and the connecting cylinder 9. All suspended dust generated during the crushing and screening process is uniformly and strongly sucked into the dust collection bag 17, ensuring the cleanliness of the inside of the equipment and the external working environment. The dust is collected to avoid dust accumulation, damage to internal parts of the equipment, and reduction of the service life of the equipment. The magnetic plate 33 is pulled by the handle 32 to slide inside the mounting frame 24, facilitating replacement and maintenance. The electromagnetic iron is cleaned well by using the magnetic plate 33 and the sleeve 34.

[0050] Please refer to the attached Figure 1 -attached Figure 3 The driving assembly includes a shell 20 fixedly connected to the outside of the box body 1. The outer part of the shell 20 is fixedly connected with a driving motor 19. The output end of the driving motor 19 is fixedly connected with a chain wheel 38. The side of the box body 1 is rotatably connected with another chain wheel 38. The outer parts of the two chain wheels 38 are sleeved with a chain 7. The crushing assembly includes two rotating shafts 5 rotatably connected to the middle part of the box body 1. The outer parts of the two rotating shafts 5 are fixedly connected with shearing rollers 18. One end of one of the rotating shafts 5 is fixedly connected with a set of pulleys 31. One of the chain wheels 38 is fixedly connected to one end of the other rotating shaft 5. The middle part of the box body 1 is rotatably connected with two rotating shafts 6. The outer parts of the two rotating shafts 6 are fixedly connected with crushing rollers 21. One end of one of the rotating shafts 6 is fixedly connected with a set of pulleys 31. A set of chain wheels 38 is fixedly connected to one end of the other rotating shaft 6. The outer parts of the two pulleys 31 are sleeved with a synchronous belt 14. The top of the box body 1 is fixedly connected with a bin 36. The outer part of the bin 36 is rotatably connected with a closing door 4. The outer part of the bin 36 is fixedly connected with a feed hopper 3. The inner side of the closing door 4 is fixedly connected with an elastic member 41.

[0051] Specifically, the PET plastic tray is sent from the feeding hopper 3, under the action of an external force, the closing door 4 compresses the spring member, at this time the closing door 4 is in an open state, when the feeding stops, the plastic tray completely enters the inside of the box body 1, the pressure disappears, the elastic member 41 rebounds, and drives the closing door 4 to abut against the side surface of the bin body 36 under the elastic force of the spring member, the feeding port is closed, preventing the dust generated during crushing from overflowing, the closing door 4 closes the dust generated in the crushing cavity, effectively preventing the dust from overflowing from the feeding port or other gaps. The working environment of the production workshop is improved, and the health of the operators is protected. The driving motor 19 drives the rotating shaft one 5 and the sprocket 38 to rotate, which drives the rotating shaft two 6, the pulley 31, the synchronous belt 14, the shearing roller 18 and the crushing roller 21 to rotate synchronously, and drives the two-stage crushing roller, so that the PET suction tray is effectively crushed. When the material is fed from the feeding port, the closing door 4 is reset to a closed state under the action of the elastic member 41. First, the material is preliminarily sheared by the upper shearing roller 18, and the material is sheared into small pieces. The small pieces fall into the crushing roller 21, and the rotating speed of the crushing roller 21 is usually designed to be higher than that of the shearing roller 18. Through high-speed beating and grinding, the small pieces of material are further refined and crushed into uniform granular materials. The crushing roller 21 is driven by two rotating shafts two 6, and its design feature is opposite to that of the upper layer, that is, high speed and high impact force are used to repeatedly beat, collide and grind the material. This two-stage division mode of shearing first and then crushing not only improves the adaptability of the raw material, but also ensures the uniformity of the particle size of the final material, laying a solid foundation for the subsequent screening and quality of the regenerated material. During the falling process, small PET fragments and dust will be attracted to each other due to electrostatic attraction, forming clusters that are difficult to separate. The airflow with positive and negative ions blown out of the air outlet 28 by the high-pressure ionizing air of the ion air knife 13 blows the surface of the material, quickly neutralizes the static charge carried by the material, completely eliminates static electricity, and solves the problem of dust firmly adhering to the surface of the crushed material due to static electricity generated by friction between the materials, and the problem of dust aggregation between the crushed materials, which further causes screening and dust removal difficulties.

[0052] Please refer to the accompanying Figure 1 , the accompanying Figure 3 and the accompanying Figure 6 , the screening assembly comprises a vibrating motor 8, the vibrating motor 8 is fixedly connected to the outside of the box body 1, and the middle part of the vibrating motor 8 is fixedly connected with a sieve plate 29. The sieve plate 29 is arranged in the inside of the box body 1, and the middle part of the sieve plate 29 is provided with a sieve hole 30.

[0053] Specifically, the sieve plate 29 is installed in the interior of the box body 1 in an inclined manner, and the sieve plate 29 is driven by the vibration motor 8 to continuously and slightly reciprocate to screen the crushed materials, and the cooperation of the vibration and the inclination angle causes the qualified PET crushed materials with a size greater than the sieve hole 30 to be shaken and slide downward along the inclined surface for conveying, the dust is separated to the suction port 25 through the sieve hole 30, and the electrostatic elimination assembly can avoid the problem that the crushed materials and the dust are mutually adsorbed and clustered due to static electricity, so that the materials return to a loose state, and then the dust is ensured to be cleaned in time through the dust collection assembly, the cleanliness and purity of the final PET crushed materials are improved, the dust is collected through the dust collection assembly, and meanwhile the crushed materials fall downward along the inclined angle to the magnetic separation area, the inclination of the sieve plate 29 can make the crushed materials regular and guide the material flow, and ensure that all the crushed materials can pass through the directly below of the electromagnet, so that the materials are prevented from scattering or bypassing, and the high-efficiency magnetic separation is ensured. The purity of the crushed materials is ensured, the guide plate one 39 and the guide plate two 40 assist in guiding to ensure that the material flow enters the storage bin 2, the materials are prevented from scattering and the omission of impurity removal, and the stability of the process flow is ensured.

[0054] Please refer to the accompanying drawings Figure 10 The PET blister tray crushing process described below can be correspondingly referred to the PET blister tray crushing device described above.

[0055] S1, closed feeding: the PET blister tray is put into the self-closing feeding port, and after the material enters, the feeding port is automatically closed to isolate the dust;

[0056] S2, two-stage crushing: the material passes through the upper shear roller 18 and the lower crushing roller 21 in turn, is first sheared into blocks at a low speed, and is then crushed into uniform crushed materials at a high speed;

[0057] S3, electrostatic elimination: the ion wind knife 13 blows ion wind to neutralize the static electricity on the surface of the crushed materials and prevent the material clustering;

[0058] S4, vibration dust removal: the crushed materials move on the inclined sieve plate 29, and in the process, the dust is separated through the sieve hole 30 and is uniformly collected by the dust collection system;

[0059] S5, magnetic separation of impurities: the crushed materials fall through the electromagnet, and the mixed metal scraps are separated by magnetic attraction;

[0060] S6, classified collection: the clean PET crushed materials fall into the storage bin 2, and after the electromagnet is powered off at a fixed time, the adsorbed metal impurities fall into the dust collection box 23 below.

[0061] The device in the embodiment can be used to execute the method in the above embodiment, and has similar principles and technical effects, which will not be described here again.

Claims

1. A PET blister pack crushing device, comprising a housing (1), characterized in that, The bottom of the box (1) is fixedly connected to a storage bin (2). A cleaning component is provided in the middle of the box (1). A collection component is installed at the bottom of the cleaning component. A driving component is provided on the outside of the box (1). A crushing component is provided outside the driving component. The driving component acts on the crushing component to crush the PET blister tray. The crushing component, combined with the static elimination component, neutralizes the static electricity carried by the crushed material. A dust collection component is provided in the middle of the box (1). A screening component is provided inside the box (1). The screening component is located directly above the dust collection component. The impurity removal component includes a mounting bracket (24), which is fixedly connected to the inside of the housing (1). A generator (15) is fixedly connected to the outside of the mounting bracket (24). A fixed bracket (37) is slidably connected to the middle of the mounting bracket (24). A magnetic plate (33) is fixedly connected to the bottom of the fixed bracket (37). A handle (32) is fixedly connected to the top of the fixed bracket (37). A sleeve (34) is fixedly connected to the middle of the fixed bracket (37). An iron core (35) is fixedly connected inside the sleeve (34). A coil (43) is wound around the outside of the iron core (35).

2. The PET blister pack crushing device according to claim 1, characterized in that, The static elimination assembly includes two ion air knives (13), which are fixedly connected to the middle of the housing (1). Each of the two ion air knives (13) has an air outlet (28) fixedly connected to its middle. An air pump (11) is fixedly connected to the outside of the storage bin (2). A pipe (10) is fixedly connected to the output end of the air pump (11). The end of the pipe (10) is fixedly connected to one side of the ion air knives (13). A valve (12) is provided in the middle of the pipe (10).

3. The PET blister pack crushing device according to claim 2, characterized in that, The dust collection assembly includes a dust collection bag (17), a connecting cylinder (9) is fixedly connected to the middle of the dust collection bag (17), a housing (26) is fixedly connected to the top of the connecting cylinder (9), a dust collection plate (22) is fixedly connected to the outside of the housing (26), a suction port (25) is fixedly connected to the middle of the dust collection plate (22), an impeller (27) is rotatably connected inside the housing (26), and a guide plate one (39) and a guide plate two (40) are fixedly connected inside the box (1).

4. The PET blister pack crushing device according to claim 1, characterized in that, The collection component includes a dust collection box (23), which is fixedly connected to the middle of the box body (1). A drawer (16) is slidably connected inside the dust collection box (23), and the dust collection box (23) is fixedly connected to the bottom of the mounting bracket (24).

5. The PET blister pack crushing device according to claim 1, characterized in that, The drive assembly includes a housing (20), which is fixedly connected to the outside of the housing (1). A drive motor (19) is fixedly connected to the outside of the housing (20). A sprocket (38) is fixedly connected to the output end of the drive motor (19). Another sprocket (38) is rotatably connected to the side of the housing (1). A chain (7) is sleeved on the outside of the two sprockets (38).

6. The PET blister pack crushing device according to claim 5, characterized in that, The crushing assembly includes two rotating shafts (5), which are rotatably connected to the middle of the housing (1). Shearing rollers (18) are fixedly connected to the outside of the two rotating shafts (5). A set of pulleys (31) is fixedly connected to one end of one of the rotating shafts (5), and a sprocket (38) is fixedly connected to one end of the other rotating shaft (5). Two rotating shafts (6) are rotatably connected to the middle of the housing (1). Crushing rollers (21) are fixedly connected to the outside of both rotating shafts (6). A set of pulleys (31) is fixedly connected to one end of one of the rotating shafts (6), and a set of sprockets (38) is fixedly connected to one end of the other rotating shaft (6). A synchronous belt (14) is sleeved on the outside of the two pulleys (31).

7. The PET blister pack crushing device according to claim 1, characterized in that, The screening assembly includes a vibrating motor (8), which is fixedly connected to the outside of the housing (1). A screen plate (29) is fixedly connected to the middle of the vibrating motor (8). The screen plate (29) is located inside the housing (1), and a screen hole (30) is opened in the middle of the screen plate (29).

8. A PET blister pack crushing device according to claim 3, characterized in that, The bottom of the storage bin (2) is fixedly connected to a base (42), the dust suction plate (22) is fixedly connected to the middle of the box (1), and the two ion air knives (13) are located directly above the shell (26).

9. A PET blister pack crushing device according to claim 1, characterized in that, The top of the box (1) is fixedly connected to a hopper (36), the outside of the hopper (36) is rotatably connected to a sealing door (4), the outside of the hopper (36) is fixedly connected to a feed hopper (3), and the inside of the sealing door (4) is fixedly connected to an elastic element (41).

10. A crushing process for a PET blister pack crushing device, applied to a PET blister pack crushing device as described in claims 1-7 above, characterized in that, Includes the following steps: S1. Sealed feeding: When the PET blister tray is placed into the self-closing feeding port, the feeding port will automatically close after the material enters to isolate dust. S2, Two-stage crushing: The material passes through the upper shearing roller (18) and the lower crushing roller (21) in sequence. It is first sheared into blocks at low speed and then crushed into uniform fragments at high speed. S3, Static Electricity Elimination: Ion air is blown by the ion air knife (13) to neutralize the static electricity on the surface of the crushed material and prevent the material from agglomerating; S4, Vibration dust removal: The broken material moves on the inclined sieve plate (29), and the dust is separated through the sieve holes (30) and collected by the dust collection system. S5. Magnetic separation for impurity removal: When the scrap falls, it passes through an electromagnet, and the mixed metal scraps are separated by magnetic attraction. S6. Classification and collection: Clean PET scraps fall into the storage bin (2). After the electromagnet is de-energized at a time, the adsorbed metal impurities fall into the dust collection box (23) below.

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