A waste high-pressure fuel tank classification and recycling device

Abstract

The present application relates to a device for classifying and recycling waste high-pressure fuel tanks, belonging to the technical field of plastic high-pressure fuel tank recycling. It includes a crushing component, a processing component, and a classification component. The crushing component includes a crushing housing and crushing rollers rotatably arranged in the crushing housing. There are two groups of crushing rollers, and the two groups of crushing rollers are arranged to rotate relatively. A gap for debris to pass through is left between the two groups of crushing rollers. An inlet is provided at the top of the crushing housing, and an outlet is provided at the bottom of the crushing housing. A blocking member for movably blocking the outlet is also provided on the crushing housing. The processing component includes a processing housing communicated with the outlet, a heating member arranged in the processing housing, and a separating member arranged in the processing housing. A first classification port and a second classification port are provided on the processing housing, and the second classification port allows the molten plastic to flow out. The present application has the effect of improving the adaptability of the recycling system to the types of high-pressure fuel tanks recycled, saving recycling costs and reducing waste of resources.

Description

Technical Field

[0001] This application relates to the technical field of plastic fuel tank recycling, and in particular to a device for classifying and recycling waste high-pressure fuel tanks. Background Technique

[0002] At present, common high-pressure fuel tanks are divided into aluminum alloy high-pressure fuel tanks, steel high-pressure fuel tanks, plastic high-pressure fuel tanks, composite material high-pressure fuel tanks, etc. Since high-pressure fuel tanks have a service life, they need to be replaced after the fuel tank is damaged or reaches the service life. If the replaced high-pressure fuel tanks are directly discarded, it is easy to cause waste of resources, and plastic fuel tanks are not easily degraded and are likely to cause environmental pollution. Therefore, out of environmental friendliness considerations, high-pressure fuel tanks are often recycled.

[0003] A Chinese patent document with the publication number CN220052484U discloses an injection molding fuel tank waste recycling system, including a crushing housing. The top of the crushing housing is provided with a feed inlet. A fixed frame is fixedly installed in the middle of the crushing housing. A crushing gear is rotatably connected inside the fixed frame. A protective frame is fixedly installed on the side wall of the crushing housing. A toothed plate is fixedly installed at the bottom end inside the protective frame. One side of the toothed plate is engaged with a tooth, a rotating shaft is fixedly installed at the axis of the tooth, a roller shaft is fixedly installed on the other side of the rotating shaft, a telescopic device is fixedly installed on the outer surface of the roller shaft, and sliding grooves are provided on both sides of the inner wall of the crushing housing.

[0004] A Chinese patent document with the publication number CN112404554A discloses a cutting-type fuel tank recycling device, which includes a workbench, a control screen, a conveyor belt assembly, a cutting assembly, a separation assembly, a swing assembly and a transportation assembly; the workbench is connected to the control screen; the workbench is connected to the conveyor belt assembly; the workbench is connected to the cutting assembly; the workbench is connected to the separation assembly; the workbench is connected to the swing assembly.

[0005] In view of the above related technologies, when recycling fuel tanks, they are all recycled by cutting and crushing the fuel tanks into particles. When it is necessary to recycle plastic fuel tanks and aluminum alloy fuel tanks separately, since the sizes of the cut particles are similar and it is not easy to directly screen them, different recycling equipment needs to be used for recycling, resulting in a high recycling cost. Moreover, it is not convenient to recycle plastic-metal composite fuel tanks and plastic-carbon fiber composite fuel tanks, which is likely to cause waste of resources. Summary of the Invention

[0006] In order to improve the adaptability of the recycling system to the types of high-pressure fuel tanks recycled, save the recycling cost while reducing waste of resources, this application provides a device for classifying and recycling waste high-pressure fuel tanks.

[0007] The device for classifying and recycling waste high-pressure fuel tanks provided by this application adopts the following technical solutions:

[0008] A waste high-pressure fuel tank classification and recycling device includes a crushing component, a processing component, and a classification component;

[0009] The crushing component includes a crushing housing and a crushing roller rotatably arranged in the crushing housing. There are two groups of crushing rollers, and the two groups of crushing rollers are arranged to rotate relatively. A gap for debris to pass through is left between the two groups of crushing rollers. An inlet is opened at the top of the crushing housing, and an outlet is opened at the bottom of the crushing housing. The crushing housing is also provided with a plugging member for movably plugging the outlet;

[0010] The processing component includes a processing housing communicated with the outlet, a heating member arranged in the processing housing, and a separating member arranged in the processing housing. A first classification opening and a second classification opening are opened on the processing housing, and the second classification opening allows molten plastic to flow out;

[0011] The classification component includes a soaking tank communicated with the first classification opening and a pneumatic separation tank communicated with the soaking tank. A soaking head for adding a soaking agent into the soaking tank is arranged in the soaking tank; A pneumatic separation pipe is arranged in the pneumatic separation tank, and the pneumatic separation pipe is arranged on one side of the pneumatic separation tank.

[0012] By adopting the above technical solution, when recycling different types of high-pressure fuel tanks, technicians put the high-pressure fuel tanks into the inlet, and they are crushed by two groups of crushing rollers. All high-pressure fuel tanks are crushed into particles without classification, which is convenient for subsequent classification operations. The crushed particles pass through the gap between the two groups of crushing rollers and enter the processing housing through the outlet. Since the common material of high-pressure fuel tanks is high-density polyethylene, with a melting point between 130-135°C, and the high-pressure fuel tanks made of metal are commonly aluminum, with a melting point of 550°C, and the melting point of carbon fiber is 1300°C. Therefore, the mixed particles entering the processing housing are heated by the heating member to 130 degrees. At this time, the plastic particles in the mixed particles melt into a molten state, while the aluminum and carbon fiber do not melt and still remain in a particulate state and are mixed with the molten plastic. At this time, through the separation of the separating member, the molten plastic is separated from the particulate solids, so that the molten plastic flows out through the second classification opening. Then, through the soaking effect of the soaking tank, the plastic remaining in the solid particles is soaked and dissolved, so that the solid particles are completely separated from the plastic. Finally, the solid particles are pneumatically separated and screened through the pneumatic separation pipe of the pneumatic separation tank, and are screened according to the different densities of the carbon fiber particles and aluminum particles, so as to realize the classification and recycling of waste high-pressure fuel tanks of different materials. Through one device, multiple types of recycling can be achieved, reducing the recycling cost, improving the recycling efficiency at the same time, reducing the previous manual distinction work during fuel tank recycling, and facilitating the classification and recycling of composite material high-pressure fuel tanks.

[0013] Optionally, the separating member includes a separating rod rotatably disposed in the processing housing and separating blades disposed on the separating rod. The separating blades are densely provided with first separation holes. The end side of the separating blade extends into the mixed liquid movably, and the end side of the separating blade is in movable contact with the mixed liquid. A separating plate is slidably disposed in the processing housing. The separating plate is densely provided with second separation holes. The separating plate divides the processing housing into a solid cavity and a liquid cavity. An adjusting member for slidably adjusting the separating plate is further provided in the processing housing.

[0014] By adopting the above technical solution, the crushed particles are heated, and the molten mixture is stirred by the rotatably disposed separating rod and separating blades to make the heating uniform. At the same time, the separating plate is slid up and down in the processing housing. Due to the presence of the second separation holes densely provided on the separating plate, when the separating plate rises, under the action of pressure, the plastic liquid is extruded from the second separation holes and flows into the liquid cavity and out through the second classification port, while the solid particles remain in the solid cavity under the filtering action of the separating plate. The separating plate is slidably driven by the provided adjusting member. Through the reciprocating sliding of the separating plate, the rapid and efficient separation of the molten liquid and solid particles is realized.

[0015] Optionally, the separating rod is threadedly disposed on the separating plate. The adjusting member includes a rotating gear rotatably disposed in the processing housing. A rotating rack is provided on the separating plate. The rotating gear meshes with the rotating rack, and a rotating member for rotatably driving the rotating gear is provided in the processing housing. A heating member is wound and embedded in the processing housing.

[0016] By adopting the above technical solution, when it is necessary to lift and slide the separating plate, the rotating gear is driven at this time. The rotating gear meshes with the rotating rack to lift and lower, thereby driving the separating plate to lift and slide, and then realizing the separation operation of the molten liquid and solid particles. At the same time, the mixture in the processing housing is uniformly heated by the heating member embedded in the processing housing.

[0017] At the same time, since the separating rod is threadedly disposed on the separating plate, when the separating plate rises, the separating rod is driven to rotate at this time. The rotating separating rod drives the separating blades to rotate, so as to realize the stirring operation of the molten liquid during the rising process of the separating plate, making the melting of the plastic uniform. At the same time, the first separation holes are provided on the separating blades. When the separating blades stir the molten plastic, the first separation holes filter the molten plastic, separating the solid particles while stirring the molten plastic. At the same time, when the separating blades rotate, the agglomeration of the molten plastic and solid particles is reduced, which affects the subsequent separation of the plastic from the metal and carbon fiber.

[0018] Optionally, sealing plates are rotatably arranged at the first classification port and the second classification port, and the end side of the sealing plate away from its rotating shaft is movably attached and pressed against the inner peripheral wall of the first classification port / second classification port; when the separation plate slides in a direction away from the crushing housing, the sealing plates rotate to a state where both the first classification port and the second classification port are kept open;

[0019] When the separation plate slides in a direction close to the crushing housing, the sealing plates rotate to a state where both the first classification port and the second classification port are kept closed.

[0020] By adopting the above technical solution, through the sealing plates arranged at the first classification port and the second classification port, when the separation plate ascends, both the first classification port and the second classification port are blocked at this time, the volume in the solid cavity becomes smaller, the pressure increases, and the mixture on the top side of the separation plate is extruded. The molten plastic liquid falls into the liquid cavity through the second separation hole. When the separation plate descends, the sealing plates at the first classification port and the second classification port rotate to the open state at this time. The separation plate extrudes the molten plastic in the liquid cavity through the second classification port. At the same time, the first classification port replenishes gas towards the solid cavity, reducing the problem that the separation plate is not easy to descend due to the air pressure difference, so as to realize the efficient separation and efficient removal of the molten plastic and solid particles.

[0021] Optionally, a third classification port is further opened on the processing housing, a cleaning plate is slidably arranged in the processing housing, the cleaning plate is arranged obliquely, the cleaning plate is attached to the surface of the separation plate, and a synchronizing member for synchronously sliding and adjusting the separation plate and the cleaning plate is further arranged in the processing housing.

[0022] By adopting the above technical solution, the arranged synchronizing member drives the cleaning plate and the separation plate to slide synchronously. When the separation plate is lifted and lowered, the cleaning plate slides along the surface of the lifting plate, scraping the solid particles remaining on the separation plate to the third classification port, facilitating the collection of solid particles, and the arranged synchronizing member reduces the energy waste brought by two power sources and saves the power source.

[0023] At the same time, through the slidably arranged cleaning plate, the residual of solid particles in the second separation hole of the separation plate is reduced, affecting the separation efficiency of solid particles and molten plastic.

[0024] The cleaning plate is arranged in an inclined shape, so that when the separation plate ascends, the cleaning plate is always attached to the surface of the separation plate, reducing the interference of the cleaning plate on the separation plate when the separation plate ascends, and improving the smoothness and effectiveness of the sliding of the separation plate.

[0025] Optionally, a cleaning lead screw is rotatably arranged in the processing housing, the cleaning plate is threadedly arranged on the cleaning lead screw, the synchronizing member includes a first synchronizing bevel gear coaxially arranged at the center of the rotation axis of the rotation gear and a second synchronizing bevel gear arranged on the cleaning lead screw, and the first synchronizing bevel gear meshes with the second synchronizing bevel gear.

[0026] By adopting the above technical solution, when it is necessary to slidably drive the cleaning plate and the separation plate, at this time, an external power source is used to rotationally drive the rotation gear, and the rotation of the rotation gear drives the rotation rack to lift. At this time, when the rotation gear rotates, it synchronously drives the first synchronizing bevel gear to rotate, thereby driving the second synchronizing bevel gear meshing with the second synchronizing bevel gear to rotate, and further driving the cleaning lead screw to rotate. The rotation of the cleaning lead screw drives the threadedly arranged cleaning plate to scrape and slide against the separation plate, realizing the synchronous sliding drive of the cleaning plate and the separation plate.

[0027] Optionally, the infiltration tank is communicated with the third classification port of the processing housing. A sealing plate is rotatably arranged at the third classification port, and the sealing plate movably seals the third classification port. An extrusion plate is rotatably arranged in the infiltration head, and the extrusion plate adjusts the opening of the infiltration head. A linkage member for synchronously adjusting the separation plate and the extrusion plate is further arranged on the processing housing.

[0028] By adopting the above technical solution, when recycling different high-pressure fuel tanks, the required amount of the infiltration agent is also different. Since the infiltration agent is usually a volatile chemical agent, if the same amount is continuously added, it is easy to cause waste of the infiltration agent. At the same time, if a small amount is continuously added, when the metal or carbon fiber particles are relatively large, it is not easy to completely separate the plastic from the solid particles. Therefore, through the above arrangement, by the provided linkage member, when adjusting the separation plate, the opening size of the third classification port and the opening size of the infiltration head are adjusted according to the amount of different solid particles, thereby reducing the waste of the infiltration agent caused by the opening of the third classification port being too large and the molten plastic directly flowing into the infiltration tank, or incomplete dissolution of the plastic, and at the same time reducing the waste of the infiltration agent caused by the opening of the infiltration head being too large.

[0029] Optionally, the linkage member includes a lifting plate slidably arranged in the processing housing, and the lifting plate is movably attached to the separation plate. The lifting plate is located on the side of the separation plate close to the cleaning plate, and the lifting plate is elastically arranged in the processing housing. The linkage member includes a linkage plate slidably arranged on the inner wall of the processing housing, the linkage plate is connected to the lifting plate, a tooth groove is formed on the side of the linkage plate close to the infiltration tank, a linkage gear is arranged at the rotating shaft of the extrusion plate, and the linkage gear meshes with the linkage plate.

[0030] By adopting the above technical solution, when the separation plate rises, the cleaning plate scrapes the solid particles on the separation plate to a position close to the third classification port. When the separation plate drives the solid particles to rise, the solid particles are between the separation plate and the lifter. When the separation plate continues to rise, the solid particles abut against the lifter plate and rise. When the lifter plate rises, since the lifter plate is connected to the linkage plate, the linkage plate is driven to rise. At the same time, when the linkage plate rises, the linkage gear is driven to rotate, thereby driving the extrusion plate to rotate, realizing the adjustment of the opening of the wetting head.

[0031] Meanwhile, when the content of solid particles is relatively large, the thickness of the solid particulate matter between the lifter plate and the separation plate is relatively thick. When the lifter plate rises, the solid particulate matter abuts against the lifter plate. Since the stroke of the separation plate is always fixed, the rising thickness of the lifter plate depends on the thickness of the solid particulate matter. Through this setting, the opening of the third classification port also depends on the thickness of the solid particulate matter, and the size of the opening of the wetting head also depends on the thickness of the solid particulate matter. Thus, it is convenient to add different amounts of wetting agent according to the amount of solid particulate matter, saving the wetting agent while improving the dissolution efficiency of plastics in solid particulate matter and enhancing the recovery efficiency of metals and carbon fibers.

[0032] Optionally, a wetting plate is slidably arranged in the wetting box. The sliding direction of the wetting plate is opposite to that of the separation plate, and a wetting rack is arranged on the wetting plate. The wetting rack meshes with the rotating gear, and a plurality of wetting holes are densely arranged on the wetting plate.

[0033] By adopting the above technical solution, the wetting plate slidably arranged in the wetting box, when the separation plate rises and scrapes the solid particulate matter through the third classification port into the wetting box, at this time, since the sliding direction of the wetting plate is opposite to that of the separation plate, the wetting plate slides towards the bottom side of the wetting box, so that the solid particulate matter scraped from the third classification port directly falls into the wetting box for wetting treatment. When the separation plate descends, the wetting plate rises at this time, filters the solid particles that have been wetted and conveys them into the air separation box for air separation screening, completing the last step of screening of metals and carbon fibers.

[0034] Optionally, an air separation port communicating with the air separation box is opened on one side of the wetting box away from the processing housing. An air separation platform is arranged at the connection of the air separation box and the processing housing. An air separation pipe is communicated with the bottom side of the air separation platform. The air separation pipe is inclined towards the side away from the wetting box, and a first air separation port and a second air separation port are opened on the bottom side of the air separation box.

[0035] By adopting the above technical solution, after the solid particles enter the air separation box, the air separation pipe blows air obliquely towards the wetting box, so as to blow up the metal particles and carbon fiber particles. According to the difference in the density of metals and carbon fibers, screening is carried out, and screening is carried out through the first air separation port and the second air separation port according to the difference in mass.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. By providing a crushing roller, a heating element, a separating element, a wetting head, and a pneumatic separation box, a device is used to crush the fuel tank. After crushing, heating is carried out to melt the plastic. The separating element separates the molten plastic and solid particles, thereby recycling the plastic. Through wetting and pneumatic separation processes, metals and carbon fibers in the solid particles are classified and recycled, thus realizing the recycling treatment of different types of waste high-pressure fuel tanks.

[0038] 2. Through a lifting and sliding separating plate, second separation holes opened on the separating plate, a separating rod threadedly and rotatably connected to the separating plate, and provided separating blades, when the separating blades rotate, the molten plastic is stirred to improve the uniformity of plastic heating. At the same time, the first separation holes opened on the separating plate improve the separation efficiency of the molten plastic and solid particles. When the separating plate rises, the molten plastic falls into the liquid cavity under the action of air pressure, and the solid particles remain on the upper surface of the separating plate, thus facilitating the classification and recycling of high-pressure fuel tanks made of different types of materials.

[0039] 3. Through a sliding lifting plate, a linkage plate connected to the lifting plate, and a linkage gear meshing with the linkage plate, the lifting plate changes its stroke as the amount of solid particulate matter changes, thereby realizing the adjustment of the opening size of the third classification port and the opening size of the wetting head, adding different wetting agents according to the amount of different solid particulate matters, and at the same time reducing the outflow of molten plastic from the third classification port and affecting the molten plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is the overall structural schematic diagram of a waste high-pressure fuel tank classification and recycling device according to an embodiment of the present application;

[0041] Figure 2 is the internal connection structural schematic diagram of a waste high-pressure fuel tank classification and recycling device;

[0042] Figure 3 is Figure 2 the partial structural schematic diagram of part A in

[0043] Figure 4 is the connection structural schematic diagram of another perspective of a waste high-pressure fuel tank classification and recycling device;

[0044] Figure 5 is Figure 4 the partial structural schematic diagram of part B in

[0045] Reference Signs: 1, crushing assembly; 11, crushing housing; 12, crushing roller; 13, feed inlet; 14, discharge outlet; 15, plugging member; 2, processing assembly; 21, processing housing; 22, heating member; 23, first classification port; 231, plugging plate; 24, second classification port; 25, separating member; 251, separating rod; 252, separating blade; 253, first separation hole; 254, second separation hole; 255, solid cavity; 256, liquid cavity; 26, adjusting member; 262, rotating rack; 263, rotating member; 27, cleaning plate; 271, third classification port; 272, separating plate; 28, synchronizing member; 281, cleaning lead screw; 282, first synchronizing bevel gear; 283, second synchronizing bevel gear; 3, classification assembly; 31, soaking tank; 32, soaking head; 33, soaking plate; 34, air separation box; 35, air separation platform; 351, screening port; 352, air separation pipe; 353, first air separation port; 354, second air separation port; 36, linkage member; 361, lifting plate; 362, extrusion plate; 363, linkage plate; 364, linkage gear; 37, soaking rack; 38, soaking hole. Detailed Embodiment

[0046] The following will further elaborate on this application with reference to the Figures 1-5 accompanying drawings.

[0047] An embodiment of this application discloses a device for classifying and recycling waste high-pressure fuel tanks.

[0048] First of all, it should be noted that when classifying and recycling waste high-pressure fuel tanks, relevant technicians need to remove the components at different positions on the fuel tank, classify and recycle the components such as valves installed on the waste fuel tank, reduce the wear of the recycling device by metal components, reduce the load of the recycling device, and at the same time reduce the problem that some components cannot be recycled after being crushed. Referring to Figure 1 , a device for classifying and recycling waste high-pressure fuel tanks includes a crushing assembly 1, a processing assembly 2, and a classification assembly 3 arranged in sequence. Referring to Figure 1 and Figure 2 , the crushing assembly 1 includes a vertically arranged crushing housing 11. A crushing roller 12 is rotatably arranged in the crushing housing 11. There are two groups of crushing rollers 12, and the two groups of crushing rollers 12 are arranged oppositely, and the rotation directions of the two groups of crushing rollers 12 are opposite. A gap for debris to pass through is left between the two groups of crushing rollers 12. A feed inlet 13 is opened at the top of the crushing housing 11, a discharge outlet 14 is opened at the bottom of the crushing housing 11, and the crushing housing 11 is also provided with a plugging member 15 for movably plugging the discharge outlet 14. The plugging member 15 is a blocking plate slidably arranged in the crushing housing 11. After a large number of waste high-pressure fuel tanks are put in at one time and crushed, the technician slides the blocking plate to plug the discharge outlet 14 to facilitate subsequent melting and classification recycling operations.

[0049] Referring to Figure 2 and Figure 3 Figure 3 , the processing component 2 includes a processing housing 21 fixed to the bottom of the crushing housing 11. The processing housing 21 is communicated with the crushing housing 11 through a discharge port 14. A heating element 22 is fixedly embedded on the inner peripheral wall of the processing housing 21. In this application, the heating element 22 is a heating wire fixedly embedded in the inner wall of the processing housing 21. A separating member 25 is further provided in the processing housing 21. A first sorting port 23 is opened at the top of the processing housing 21, and a second sorting port 24 is opened at the bottom of the processing housing 21. The second sorting port 24 is for the molten plastic to flow out. The separating member 25 includes a separating plate 272 slidably and vertically arranged in the processing housing 21 and a separating rod 251 rotatably arranged in the processing housing 21. A plurality of separating blades 252 are evenly fixed at intervals on the separating rod 251. The rotation axes of the separating rod 251 and the separating blades 252 are consistent with the height direction of the processing housing 21. A first separating hole 253 is opened on the separating blade 252. After the heating element 22 heats the particles generated by crushing to 330 degrees Celsius, the plastic particles are melted at this time. The rotating separating blades 252 stir the molten plastic particles and the unmelted solid particles to improve the uniformity of melting. At the same time, the first separating holes 253 are provided. During the stirring process, the first separating holes 253 filter while stirring the molten plastic and the solid particles, further improving the separation efficiency of the solid particles and the molten plastic.

[0050] At the same time, a separating plate 272 is further slidably arranged in the processing housing 21. The separating plate 272 is horizontally arranged, and the sliding direction of the separating plate 272 is consistent with the height direction of the processing housing 21. A plurality of second separating holes 254 are densely opened on the separating plate 272. When the separating plate 272 moves up and down, the molten plastic is extruded downward through the second separating holes 254 by the action of air pressure. The separating plate 272 divides the processing housing 21 into a solid cavity 255 and a liquid cavity 256, and the solid cavity 255 is located directly above the liquid cavity 256. At the same time, the separating rod 251 is threadedly arranged on the separating plate 272. It should be noted that the thread here means that a helically arranged groove is opened on the separating rod 251, and a block slidably adapted to the helically arranged groove is provided on the separating plate 272. When the separating plate 272 moves up and down, it drives the separating rod 251 to rotate, so as to realize the synchronous progress of filtration and stirring.

[0051] Referring to Figure 4 and Figure 5, meanwhile, in order to realize the lifting adjustment operation of the separation plate 272, an adjusting member 26 is further provided in the processing housing 21. The adjusting member 26 includes a rotating gear rotatably provided on the inner wall of the processing housing 21. A rotating rack 262 is fixedly connected to the separation plate 272. The rotating gear meshes with the rotating rack 262. A rotating member 263 for driving the rotation of the rotating gear is fixedly connected to the side wall of the processing housing 21. In this application, the rotating member 263 is a rotating motor fixed on the outer side wall of the processing housing 21, and the output end of the rotating motor is fixed to the axis of the rotating gear.

[0052] Meanwhile, when the separation plate 272 is lifted or lowered, it is arranged that the molten plastic and solid particles are separated by the action of air pressure during the lifting and lowering process of the separation plate 272. Therefore, blocking plates 231 are rotatably provided at both the first classification port 23 and the second classification port 24. The blocking plate 231 at the first classification port 23 is inclined towards the inside of the processing housing 21. One end of the blocking plate 231 at the first classification port 23 away from the inside of the processing housing 21 is rotatably connected to the inner wall of the first classification port 23, and one end of the blocking plate 231 at the first classification port 23 away from its rotation axis is in close contact with the inner wall of the first classification port 23; at the same time, the blocking plate 231 at the second classification port 24 is inclined away from the inside of the processing housing 21. One end of the blocking plate 231 at the second classification port 24 close to the inside of the processing housing 21 is rotatably connected to the inner wall of the second classification port 24, and one end of the blocking plate 231 at the second classification port 24 away from the processing housing 21 is in close contact with the inner wall of the second classification port 24.

[0053] And torsion springs are provided at the rotation shafts of both blocking plates 231. Thus, when the separation plate 272 slides towards the direction close to the crushing housing 11, that is, when it rises, the inclined blocking plates block both the first classification port 23 and the second classification port 24 at this time. At this time, the volume of the solid cavity 255 becomes smaller and the volume of the liquid cavity 256 becomes larger. Thus, under the action of pressure, the molten plastic is extruded from the second separation hole 254 on the separation plate 272 into the liquid cavity 256, and the solid particles remain on the separation plate 272.

[0054] When the separation plate 272 slides towards the direction away from the crushing housing 11, that is, when it descends, at this time, under the action of air pressure, the blocking plates 231 rotate to the positions where the first classification port 23 and the second classification port 24 are opened. At this time, the separation plate 272 extrudes the molten plastic in the liquid cavity 256 through the second classification port 24, and the first classification port 23 is connected to the outside, realizing the constant air pressure in the solid cavity 255 and reducing the problems caused by the difficult descent of the separation plate 272 due to air pressure problems.

[0055] After the separation plate 272 separates the solid particles and the molten plastic, it is still necessary to separate the solid particles from the processing housing 21, so as to facilitate the subsequent re-separation of carbon fiber and metal in the solid particles. Therefore, to solve this problem, a cleaning plate 27 is slidably arranged in the processing housing 21. The sliding direction of the cleaning plate 27 is inclined, and the cleaning plate 27 always fits on the surface of the separation plate 272. A third classification port 271 is opened on the side wall of the processing housing 21 close to the classification assembly 3. When the separation plate 272 slides to the highest point of the stroke, the height of the separation plate 272 is consistent with the height of the third classification port 271 at this time. One end of the separation plate 272 close to the third classification port 271 is arranged in an inclined shape, and the height of the end side of the separation plate 272 close to the third classification port 271 is lower than the height of the side far from the third classification port 271.

[0056] And at this time, when there are a large number of solid particles and it is not easy to scrape all the solid particles from the third classification port 271 at one time, a scraping plate is rotatably connected to the bottom side of the cleaning plate 27. The scraping plate fits on the surface of the separation plate 272, and the rotating shaft of the scraping plate is located on the side of the cleaning plate 27 close to the third classification port 271. The end side of the scraping plate far from the third classification port 271 is movably abutted against the bottom side of the cleaning plate 27. When the cleaning plate 27 slides toward the side close to the third classification port 271, at this time, under the action of resistance, the scraping plate abuts against the cleaning plate 27, so as to realize the stable scraping of the fixed particles on the surface of the separation plate 272; when the cleaning plate 27 slides toward the direction away from the third classification port 271, at this time, the scraping plate can rotate, and under the action of resistance, the scraping plate rotates toward the side close to the third classification port 271, so that the solid particles can easily enter the side of the cleaning plate 27 close to the third classification port 271 through the bottom side of the cleaning plate 27. The separation plate 272 reciprocates up and down multiple times to realize the separation of solid particles and molten plastic.

[0057] In order to realize the synchronous lifting of the separation plate 272 and the sliding of the cleaning plate 27, so as to ensure the stable scraping of the fixed particles on the cleaning plate 27, a synchronizing member 28 is also arranged in the processing housing 21. The synchronizing member 28 includes a first synchronizing bevel gear 282 coaxially fixed at the center of the rotating gear and a cleaning lead screw 281 rotatably arranged in the processing housing 21. The rotation axis of the cleaning lead screw 281 is also arranged in an inclined shape. The cleaning plate 27 is threadedly arranged on the cleaning lead screw 281. A second synchronizing bevel gear 283 is coaxially fixed on the cleaning lead screw 281, and the first bevel gear meshes with the second bevel gear. Thus, when the rotating motor drives the rotating gear to rotate, driving the rotating rack 262 and the separation plate 272 to lift, at this time, the first synchronizing bevel gear 282 drives the second bevel gear to rotate at the same time, so as to drive the cleaning lead screw 281 to rotate, realize the sliding of the cleaning plate 27, and further realize the scraping of the surface of the separation plate 272 by the cleaning plate 27.

[0058] The classification component 3 includes a soaking tank 31 fixed to one side of the processing housing 21 and communicated through a third classification port 271, and a winnowing box 34 communicated with the soaking tank 31. A soaking head 32 is provided on the top side of the soaking tank 31, and a soaking agent is stored in the soaking head 32. In this application, the soaking agent is benzene for dissolving plastics, and an extrusion plate 362 is rotatably arranged in the soaking head 32 to adjust the opening size at the bottom side of the soaking head 32. Since the addition amount of the soaking agent changes with the amount of solid particles, and if the third classification port 271 is always kept open, the molten plastic is also likely to flow into the soaking tank 31, resulting in waste of the soaking agent. Therefore, in order to adjust the addition amount of the soaking agent according to the amount of different solid particles, a lifting plate 361 is elastically slidably arranged on the inner top wall of the processing housing 21. The sliding direction of the lifting plate 361 is consistent with the height direction of the processing housing 21, and the lifting plate 361 is located on one side of the processing housing 21 close to the third classification port 271, and the separation plate 272 is movably attached to the lifting plate 361. At this time, it should be noted that when the separation plate 272 slides to the topmost position of the stroke, the cleaning plate 27 slides to a position where it is attached to the side of the lifting plate 361 away from the third classification port 271, that is, the cleaning plate 27, the lifting plate 361, the separation plate 272, and the inner wall of the processing housing 21 enclose a cavity for storing solid particles.

[0059] Since usually, when recycling waste high-pressure fuel tanks, manual pre-sorting is carried out first, and then different recycling methods are adopted according to different materials. However, what this application aims to solve is to solve the problem of manual pre-treatment work, that is, when there is no metal or carbon fiber in the recycled material, there is no need for soaking operation at this time. Therefore, in order to achieve this function, a linkage member 36 for synchronously adjusting the separation plate 272 and the extrusion plate 362 is also provided in the processing housing 21. The linkage member 36 includes a linkage plate 363 slidably arranged on the processing housing 21. The linkage plate 363 movably blocks the third classification port 271. The lifting plate 361 is fixedly connected to the linkage plate 363. A linkage gear 364 is coaxially arranged at the rotating shaft of the extrusion plate 362. A tooth groove is formed on the side of the linkage plate 363 away from the processing housing 21, and the linkage gear 364 meshes with the tooth groove of the linkage plate 363.

[0060] When the content of solid particles is relatively large, the thickness of the solid particles between the lifting plate 361 and the separation plate 272 is relatively thick at this time. When the lifting plate 361 rises, the solid particles press against the lifting plate 361. Since the stroke of the separation plate 272 is always fixed, the rising thickness of the lifting plate 361 depends on the thickness of the solid particles. Through this setting, the opening of the third classification port 271 also depends on the thickness of the solid particles. At the same time, the opening size of the wetting head 32 also depends on the thickness of the solid particles, so as to facilitate adding different amounts of wetting agent according to the amount of solid particles, saving the wetting agent while improving the dissolution efficiency of the plastic in the solid particles and the recovery efficiency of metals and carbon fibers.

[0061] At the same time, a wetting plate 33 is also slidably arranged in the wetting tank 31. The sliding direction of the wetting plate 33 is opposite to the sliding direction of the separation plate 272, that is, when the separation plate 272 rises and scrapes the solid particles through the third classification port 271 into the wetting tank 31, the wetting plate 33 slides towards the bottom side of the wetting tank 31. At the same time, the opening of the wetting head 32 at this time is adjusted according to the sliding degree of the lifting plate 361, so as to realize wetting of different amounts of solid particles; when the separation plate 272 descends, the lifting plate 361 descends under the action of the elastic restoring force, so that the linkage plate 363 seals the third classification port 271. At the same time, the wetting plate 33 rises at this time to lift and filter the solid particles after wetting, so as to realize the complete separation of the solid particles and the plastic.

[0062] The wetting plate 33 is densely provided with wetting holes 38. The diameter of the wetting holes 38 is smaller than the diameter of the solid particles. At the same time, in order to realize the synchronous movement of the separation plate 272 and the wetting plate 33, a wetting rack 37 is also slidably arranged on the side wall of the wetting tank 31. The wetting rack 37 meshes with the rotating gear, and the wetting rack 37 and the rotating rack 262 are located on opposite sides of the rotating gear.

[0063] In order to achieve subsequent air separation and screening, the height of the side of the infiltration plate 33 close to the processing housing 21 is higher than the height of the side far from the processing housing 21, and a screening port 351 is formed on the side wall of the infiltration tank 31 close to the air separation tank 34. The height of the screening port 351 is flush with the height of the infiltration plate 33 when it rises to the highest point of the stroke. At this time, an air separation platform 35 is provided in the air separation tank 34. The air separation platform 35 is also arranged in an inclined shape, and the inclination angle of the air separation platform 35 is consistent with the inclination angle of the infiltration plate 33. The bottom side of the air separation platform 35 is communicated with an air separation pipe 352. The air separation pipe 352 is arranged obliquely in the direction away from the infiltration tank 31, and an air supply member communicated with the air separation pipe 352 is fixedly connected to the air separation tank 34. After infiltration, the solid particles pass through the screening port 351 along the inclined infiltration plate 33 and enter the air separation platform 35. By blowing air obliquely upward through the air separation pipe 352, solid particles with different densities and masses are distinguished. A first air separation port 353 and a second air separation port 354 are also formed on the bottom side of the air separation tank 34. The first air separation port 353 and the second air separation port 354 are arranged in sequence along the length direction of the air separation tank 34. The first air separation port 353 is located on the side close to the infiltration tank 31, and the second air separation port 354 is located on the side far from the infiltration tank 31. Metal particles fall through the first air separation port 353, and carbon fiber particles fall through the second air separation port 354.

[0064] The implementation principle of the waste high-pressure fuel tank classification and recycling device according to the embodiment of the present application is as follows: When recycling high-pressure fuel tanks of different types, technicians place different high-pressure fuel tanks into the feed port 13 of the crushing housing 11. Through the crushing action of the crushing roller 12, the fuel tank is crushed into granular form and enters the processing housing 21 through the discharge port 14. At this time, the heating member 22 in the processing housing 21 works to heat the granular fuel tank waste until the plastic particles are completely melted. At this time, the rotating motor works to drive the rotating gear to rotate. At this time, the separation plate 272 rises and falls under the action of the rotating gear, realizing the separation of the molten plastic and the solid particles, enabling the molten plastic to enter the lower liquid cavity 256, and enabling the solid particles to remain in the upper solid cavity 255 located on the separation plate 272. At this time, when the separation plate 272 rises, the cleaning plate 27 slides to scrape the solid particles on the surface of the separation plate 272, and under the rising action of the separation plate 272, the solid particles are lifted to the position of the third classification port 271 and fall onto the air separation platform 35 for subsequent air separation and screening.

[0065] During the upward movement of the separation plate 272, solid particulate matters of different thicknesses press against the lifting plate 361. Since the stroke of the separation plate 272 is always fixed, the rising thickness of the lifting plate 361 depends on the thickness of the solid particulate matters. With this setting, the opening of the third classification port 271 also depends on the thickness of the solid particulate matters, and the opening size of the wetting head 32 also depends on the thickness of the solid particulate matters. Thus, it is convenient to add different amounts of wetting agent according to the amount of solid particulate matters, so as to dissolve plastics in the solid particulate matters contained in the solid particles and improve the separation efficiency of metals, carbon fibers and plastics.

[0066] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A device for classifying and recycling waste high-pressure fuel tanks, characterized in that: It includes a crushing component (1), a processing component (2) and a classification component (3); The crushing component (1) includes a provided crushing housing (11) and a crushing roller (12) rotatably arranged in the crushing housing (11). There are two groups of the crushing rollers (12), and the two groups of the crushing rollers (12) are arranged to rotate relatively. A gap for debris to pass through is left between the two groups of crushing rollers (12). An inlet (13) is opened at the top end of the crushing housing (11), and an outlet (14) is opened at the bottom end of the crushing housing (11). A blocking member (15) for movably blocking the outlet (14) is further provided on the crushing housing (11); The processing component (2) includes a processing housing (21) communicated with the outlet (14), a heating member (22) arranged in the processing housing (21), and a separating member (25) arranged in the processing housing (21). A first classification port (23) and a second classification port (24) are opened on the processing housing (21), and the second classification port (24) is for molten plastic to flow out; The classification component (3) includes a soaking tank (31) communicated with the processing housing (21) and a pneumatic separation tank (34) communicated with the soaking tank (31). A soaking head (32) for adding a soaking agent into the soaking tank (31) is arranged in the soaking tank (31); A pneumatic separation pipe (352) is arranged in the pneumatic separation tank (34), and the pneumatic separation pipe (352) is arranged on one side of the pneumatic separation tank (34); The separating member (25) includes a separating rod (251) rotatably arranged in the processing housing (21) and separating blades (252) arranged on the separating rod (251). First separating holes (253) are densely opened on the separating blades (252). The end side of the separating blade (252) movably extends into the mixed liquid, and the end side of the separating blade (252) is movably attached to the mixed liquid. A separating plate (272) is slidably arranged in the processing housing (21). Second separating holes (254) are densely opened on the separating plate (272). The separating plate (272) divides the processing housing (21) into a solid cavity (255) and a liquid cavity (256). An adjusting member (26) for slidably adjusting the separating plate (272) is further arranged in the processing housing (21); The separating rod (251) is threadedly arranged on the separating plate (272). The adjusting member (26) includes a rotating gear rotatably arranged in the processing housing (21). A rotating rack (262) is arranged on the separating plate (272). The rotating gear meshes with the rotating rack (262). A rotating member (263) for driving the rotation of the rotating gear is arranged in the processing housing (21), and a heating member (22) is wound and embedded in the processing housing (21).

2. The waste high-pressure fuel tank classification and recycling device according to claim 1, wherein: Sealing plates (231) are rotatably arranged at both the first classification opening (23) and the second classification opening (24). The end side of the sealing plate (231) away from its rotating shaft is movably attached and abutted against the inner peripheral wall of the first classification opening (23) / second classification opening (24); when the separation plate (272) slides away from the pulverizing housing (11), the sealing plate (231) rotates to a state where both the first classification opening (23) and the second classification opening (24) are kept open; When the separation plate (272) slides towards the direction close to the pulverizing housing (11), the sealing plate (231) rotates to a state where both the first classification opening (23) and the second classification opening (24) are kept closed.

3. The classified recycling device for waste high-pressure fuel tanks according to claim 2, wherein: A third classification opening (271) is further formed in the processing housing (21). A cleaning plate (27) is slidably arranged in the processing housing (21). The cleaning plate (27) is arranged obliquely. The cleaning plate (27) is attached to the surface of the separation plate (272). A synchronizing member (28) for synchronously sliding and adjusting the separation plate (272) and the cleaning plate (27) is further arranged in the processing housing (21).

4. The classified recycling device for waste high-pressure fuel tanks according to claim 3, wherein: A cleaning lead screw (281) is rotatably arranged in the processing housing (21). The cleaning plate (27) is arranged on the cleaning lead screw (281) in a threaded manner. The synchronizing member (28) includes a first synchronizing bevel gear (282) coaxially arranged at the center of the rotating gear and a second synchronizing bevel gear (283) arranged on the cleaning lead screw (281). The first synchronizing bevel gear (282) meshes with the second synchronizing bevel gear (283).

5. The waste high-pressure fuel tank classification and recycling device according to claim 4, characterized in that: The soaking tank (31) is communicated with the third classification opening (271) of the processing housing (21). An extrusion plate (362) is rotatably arranged in the soaking head (32). The extrusion plate (362) adjusts the opening of the soaking head (32). A linkage member (36) for synchronously adjusting the separation plate (272) and the extrusion plate (362) is further arranged on the processing housing (21).

6. The classified recycling device for waste high-pressure fuel tanks according to claim 5, wherein: The linkage member (36) includes a lifting plate (361) slidably arranged in the processing housing (21). The lifting plate (361) is movably attached to the separation plate (272). The lifting plate (361) is located on the side of the separation plate (272) close to the cleaning plate (27). The lifting plate (361) is elastically arranged in the processing housing (21). The linkage member (36) includes a linkage plate (363) slidably arranged on the inner wall of the processing housing (21). The linkage plate (363) movably seals the third classification opening (271). The linkage plate (363) is connected to the lifting plate (361). A tooth groove is formed on the side of the linkage plate (363) close to the soaking tank (31). A linkage gear (364) is arranged at the rotating shaft of the extrusion plate (362). The linkage gear (364) meshes with the linkage plate (363).

7. A waste high-pressure fuel tank classification and recycling device according to claim 6, characterized in that: A soaking plate (33) is slidably arranged in the soaking box (31). The sliding direction of the soaking plate (33) is opposite to that of the separation plate (272). A soaking rack (37) is arranged on the soaking plate (33). The soaking rack (37) is engaged with the rotating gear. A plurality of soaking holes (38) are densely formed in the soaking plate (33).

8. A waste high-pressure fuel tank classification and recycling device according to claim 7, characterized in that: A screening port (351) communicating with the air separation box (34) is formed in one side of the soaking box (31) away from the processing housing (21). An air separation platform (35) is arranged at the connection of the air separation box (34) and the processing housing (21). The bottom side of the air separation platform (35) is communicated with an air separation pipe (352). The air separation pipe (352) is arranged obliquely towards the side away from the soaking box (31). A first air separation port (353) and a second air separation port (354) are formed in the bottom side of the air separation box (34).

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