Classified recovery device for waste high-pressure oil tanks

Abstract

The invention relates to the technical field of plastic high-pressure oil tank recycling, in particular to a waste high-pressure oil tank classification recycling device which comprises a smashing assembly, a processing assembly and a classification assembly. The crushing assembly comprises an arranged crushing shell and two groups of crushing rollers rotationally arranged in the crushing shell, the two groups of crushing rollers are relatively rotationally arranged, a gap for chippings to pass through is reserved between the two groups of crushing rollers, a feeding hole is formed in the top end of the crushing shell, and a discharging hole is formed in the bottom end of the crushing shell; the crushing shell is further provided with a blocking piece for movably blocking the discharging opening. And the treatment assembly comprises a treatment shell communicating with the discharging opening, a heating piece arranged in the treatment shell and a separation piece arranged in the treatment shell, a first classification opening and a second classification opening are formed in the treatment shell, and the second classification opening is used for molten plastic to flow out. The high-pressure oil tank recovery system has the effects that the adaptability of the recovery system to the high-pressure oil tank recovery types is improved, the recovery cost is saved, and meanwhile resource waste is reduced.

Description

Technical Field

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

[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., and because high-pressure fuel tanks have a service life, they need to be replaced when the fuel tank is damaged or reaches the end of its service life. If the replaced high-pressure fuel tank is directly discarded, it is easy to cause a waste of resources, and plastic fuel tanks are not easy to degrade and easily cause environmental pollution. Therefore, for environmentally friendly considerations, high-pressure fuel tanks are often recycled.

[0003] A Chinese patent document with publication number CN220052484U discloses a waste recycling system for injection molding oil tanks, including a crushing shell, a feed port is provided on the top of the crushing shell, a fixed frame is fixedly installed in the middle of the crushing shell, a crushing gear is rotatably connected inside the fixed frame, a protective frame is fixedly installed on the side wall of the crushing shell, a tooth plate is fixedly installed on the bottom end of the inner part of the protective frame, one side of the tooth plate is meshed with teeth, a rotating shaft is fixedly installed on the axis of the teeth, a roller is fixedly installed on the other side of the rotating shaft, a telescopic device is fixedly installed on the outer surface of the roller, and sliding grooves are provided on both sides of the inner wall of the crushing shell.

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

[0005] With regard to the above-mentioned related technologies, when recycling fuel tanks, they are all recycled by cutting and crushing the fuel tanks into particles. If plastic fuel tanks and aluminum alloy fuel tanks need to be recycled separately, since the cut particles are similar in size, they are not easy to be directly screened, and different recycling equipment needs to be used for recycling. The recycling cost is high, and it is not easy to recycle plastic-metal composite fuel tanks and plastic-carbon fiber composite fuel tanks, which easily leads to waste of resources. Summary of the invention

[0006] In order to improve the adaptability of the recycling system to the types of high-pressure oil tank recycling, save recycling costs and reduce waste of resources, the present application provides a waste high-pressure oil tank classification and recycling device.

[0007] The present application provides a waste high-pressure oil tank classification and recovery device that adopts the following technical solution: A waste high-pressure oil tank classification and recycling device, comprising a crushing component, a processing component and a classification component; The pulverizing assembly comprises a pulverizing shell and pulverizing rollers rotatably arranged in the pulverizing shell, two groups of pulverizing rollers are provided, and the two groups of pulverizing rollers are arranged to rotate relative to each other, and a gap is left between the two groups of pulverizing rollers for debris to pass through, a feed port is provided at the top end of the pulverizing shell, a discharge port is provided at the bottom end of the pulverizing shell, and a blocking member for movably blocking the discharge port is also provided on the pulverizing shell; The processing assembly includes a processing shell connected to the discharge port, a heating element disposed in the processing shell, and a separation element disposed in the processing shell. The processing shell is provided with a first classification port and a second classification port, and the second classification port is used for the molten plastic to flow out. The classification component includes an infiltration box connected to the first classification port and an air separation box connected to the infiltration box, the infiltration box is provided with an infiltration head for adding infiltration agent into the infiltration box; the air separation box is provided with an air separation tube, and the air separation tube is arranged on one side of the air separation box.

[0008] By adopting the above technical solution, when recycling different types of high-pressure oil tanks, the technicians will throw the high-pressure oil tanks into the feed port and crush them through two sets of crushing rollers, crushing all the high-pressure oil tanks into particles without classification, which is convenient for subsequent classification operations. The crushed particles pass through the gap between the two sets of crushing rollers and enter the processing shell through the discharge port. Since the common material of high-pressure oil tanks is high-density polyethylene, with a melting point between 130-135°C, and the common metal high-pressure oil tanks are made of aluminum, with a melting point of 550°C, and the melting point of carbon fiber is 1300°C, the mixed particles entering the processing shell are heated by the heating element to 130 degrees. At this time, the plastic particles in the mixed particles melt into a molten state, while the aluminum and carbon fiber melt. The plastic that has not melted and is still in granular form is mixed with the molten plastic. At this time, the molten plastic is separated from the granular solid through the separation part, and the molten plastic flows out through the second classification port. Then, the residual plastic in the solid particles is infiltrated and dissolved through the infiltration effect of the infiltration box, so that the solid particles and the plastic are completely separated. Finally, the solid particles are passed through the air separation tube of the air separation box for air separation and screening. The carbon fiber particles and aluminum particles are screened according to their different densities, so as to realize the classified recycling of waste high-pressure fuel tanks of different materials. Multiple types of recycling can be achieved through one device, which reduces the recycling cost, improves the recycling efficiency, reduces the work of manual distinction in the early stage of fuel tank recycling, and facilitates the classified recycling of composite material high-pressure fuel tanks.

[0009] Optionally, the separation component includes a separation rod rotatably arranged in the processing shell and a separation blade arranged on the separation rod, the separation blade is densely provided with first separation holes, the end side of the separation blade movably extends into the mixed liquid, and the end side of the separation blade is movably fitted with the mixed liquid, a separation plate is slidably arranged in the processing shell, the separation plate is densely provided with second separation holes, the separation plate divides the processing shell into a solid cavity and a liquid cavity, and an adjustment component for slidingly adjusting the separation plate is also provided in the processing shell.

[0010] By adopting the above technical scheme, the crushed particles are heated, and the molten mixture is stirred by rotating the separation rod and the separation blades to make the heating uniform. At the same time, the separation plate is slid and raised in the processing shell. Since the separation plate is densely provided with second separation holes, the second separation holes allow the separation plate to rise. Under the action of pressure, the plastic liquid is squeezed out of the second separation holes into the liquid cavity and flows out through the second classification port, while the solid particles remain in the solid cavity under the filtering effect of the separation plate. The separation plate is driven to slide by the adjusting member, and the reciprocating sliding of the separation plate enables the rapid and efficient separation of the molten liquid and the solid particles.

[0011] Optionally, the separation rod is threaded on the separation plate, the adjusting member includes a rotating gear rotatably arranged in the processing shell, a rotating rack is provided on the separation plate, the rotating gear is meshed with the rotating rack, and a rotating member for driving the rotating gear to rotate is provided in the processing shell, and a heating member is wound and embedded in the processing shell.

[0012] By adopting the above technical solution, when the separation plate needs to be lifted, lowered and slid, the rotating gear is driven to engage the rotating rack to lift and lower, thereby driving the separation plate to be lifted, lowered and slid, thereby realizing the separation operation of the molten liquid and the solid particles. At the same time, the heating element embedded in the processing shell can achieve the effect of uniformly heating the mixture in the processing shell.

[0013] At the same time, since the thread of the separation rod is arranged on the separation plate, when the separation plate rises, the separation rod is driven to rotate, and the rotation of the separation rod drives the separation blade to rotate, so as to realize the stirring operation of the molten liquid in the process of the separation plate rising, so that the melting of the plastic is uniform, and at the same time, the first separation hole opened on the separation blade filters the molten plastic when the separation blade stirs the molten plastic, and separates the solid particles while stirring the molten plastic. At the same time, when the separation blade rotates, the agglomeration of the molten plastic and the solid particles is reduced, which affects the subsequent separation of the plastic from the metal and carbon fiber.

[0014] Optionally, a blocking plate is rotatably provided at both the first classification port and the second classification port, and the end side of the blocking plate away from the rotation axis is movably fitted and tightly pressed against the inner peripheral wall of the first classification port / the second classification port; when the separation plate slides in a direction away from the pulverizing shell, the blocking plate rotates until both the first classification port and the second classification port remain open; When the separation plate slides toward the direction approaching the pulverizing shell, the blocking plate rotates until the first classification opening and the second classification opening are both kept closed.

[0015] By adopting the above technical scheme, through the sealing plates arranged at the first classification port and the second classification port, when the separation plate rises, the first classification port and the second classification port are both sealed, the volume in the solid cavity becomes smaller, the pressure increases, the mixture on the top side of the separation plate is squeezed, and 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 are rotated to the open state, and the separation plate extrude the molten plastic in the liquid cavity through the second classification port. At the same time, the first classification port replenishes gas toward the solid cavity, reducing the problem of the separation plate being difficult to descend due to the air pressure difference, thereby achieving efficient separation and efficient removal of molten plastic and solid particles.

[0016] Optionally, a third classification port is further provided on the processing shell, a cleaning plate is slidably provided in the processing shell, the cleaning plate is arranged at an angle, the cleaning plate is in contact with the surface of the separation plate, and a synchronization component is further provided in the processing shell for synchronously slidingly adjusting the separation plate and the cleaning plate.

[0017] By adopting the above technical solution, the synchronous parts are arranged to synchronously drive the cleaning plate and the separation plate to slide, so that when the separation plate is lifted and slid, the cleaning plate slides against the surface of the lifting plate, and the solid particles remaining on the separation plate are scraped to the third classification port, which is convenient for collecting the solid particles. The synchronous parts are arranged to reduce the energy waste caused by the two power sources, saving the power source.

[0018] At the same time, the cleaning plate is arranged to be slidably arranged to reduce the amount of solid particles remaining in the second separation hole of the separation plate, thereby affecting the efficiency of separating the solid particles and the molten plastic.

[0019] The cleaning plate is arranged in an inclined shape, so that when the separation plate rises, the cleaning plate always fits with the surface of the separation plate, reducing the interference of the cleaning plate on the separation plate when the separation plate rises, and improving the smoothness and effectiveness of the sliding of the separation plate.

[0020] Optionally, a cleaning screw is rotatably arranged in the processing shell, the cleaning plate is threadedly arranged on the cleaning screw, and the synchronous part includes a first synchronous bevel gear coaxially arranged at the axis of the rotating gear and a second synchronous bevel gear arranged on the cleaning screw, and the first synchronous bevel gear is meshed with the second synchronous bevel gear.

[0021] By adopting the above technical solution, when the cleaning plate and the separation plate need to be driven to slide, the rotating gear is driven to rotate by an external power source, and the rotating gear rotates to drive the rotating rack to rise and fall. At this time, the rotating gear rotates and synchronously drives the first synchronous bevel gear to rotate, thereby driving the second synchronous bevel gear meshing with the second synchronous bevel gear to rotate, and then drives the cleaning screw to rotate. The rotation of the cleaning screw drives the threaded cleaning plate to scrape and slide against the separation plate, thereby realizing the synchronous sliding drive of the cleaning plate and the separation plate.

[0022] Optionally, the infiltration box is connected to the third classification port of the processing shell, and 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 inside the infiltration head, and the extrusion plate adjusts the opening of the infiltration head. The processing shell is also provided with a linkage part for synchronously adjusting the separation plate and the extrusion plate.

[0023] By adopting the above technical scheme, when recycling different high-pressure oil tanks, the amount of wetting agent required is also different. Since the wetting agent is usually a volatile chemical agent, if the same amount is added continuously, it is easy to cause waste of the wetting agent. At the same time, if a small amount is added continuously, when the metal or carbon fiber particles are large, it is not easy to completely separate the solid particles from the plastic. Therefore, through the above arrangement, through the linkage parts set, when the separation plate is adjusted, the opening size of the third classification port and the opening size of the wetting head are adjusted according to the amount of different solid particles, thereby reducing the waste of wetting agent or incomplete dissolution of plastic caused by the molten plastic flowing directly into the wetting box due to the opening of the third classification port being too large, and reducing the waste of wetting agent caused by the large opening of the wetting head.

[0024] Optionally, the linkage member includes a lifting plate slidably arranged in the processing shell, and the lifting plate is movably fitted with 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 shell, the linkage member includes a linkage plate slidably arranged on the inner wall of the processing shell, the linkage plate is connected to the lifting plate, a tooth groove is provided on the side of the linkage plate close to the infiltration box, a linkage gear is provided at the rotating shaft of the extrusion plate, and the linkage gear is meshed with the linkage plate.

[0025] 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 lifting plate. When the separation plate continues to rise, the solid particles press against the lifting plate to rise. When the lifting plate rises, since the lifting plate is connected to the linkage plate, the linkage plate is driven to rise. At the same time, when the linkage plate rises, it drives the linkage gear to rotate, thereby driving the extrusion plate to rotate, thereby realizing the adjustment of the opening of the infiltration head.

[0026] At the same time, when the content of solid particles is relatively high, the thickness of the solid particles between the lifting plate and the separation plate is relatively thick. When the lifting plate rises, the solid particles press against the lifting plate. Since the stroke of the separation plate is always fixed, the thickness of the lifting plate depends on the thickness of the solid particles. Through this setting, the opening of the third classification port also depends on the thickness of the solid particles. At the same time, the size of the opening of the wetting head also depends on the thickness of the solid particles. This makes it convenient to add different amounts of wetting agent according to the amount of solid particles, thereby saving wetting agent and improving the dissolution efficiency of plastics in solid particles and the recovery efficiency of metals and carbon fibers.

[0027] 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 provided on the wetting plate, the wetting rack is meshed with the rotating gear, and the wetting plate is densely provided with wetting holes.

[0028] By adopting the above technical solution, the infiltration plate is slidably arranged in the infiltration box, and when the separation plate rises, the solid particles are scraped into the infiltration box through the third classification port. At this time, since the sliding direction of the infiltration plate is opposite to the sliding direction of the separation plate, the infiltration plate slides toward the bottom side of the infiltration box, so that the solid particles scraped from the third classification port directly fall into the infiltration box for infiltration treatment. When the separation plate descends, the infiltration plate rises at this time, and the solid particles that have been infiltrated are filtered and transported to the air separation box for air separation and screening, completing the last step of metal and carbon fiber screening.

[0029] Optionally, a side of the infiltration box away from the processing shell is provided with an air separation port connected to the air separation box, and the air separation box is provided with an air separation platform at the connection point with the processing shell, and the bottom side of the air separation platform is connected with an air separation tube, and the air separation tube is arranged obliquely toward the side away from the infiltration box, and a first air separation port and a second air separation port are provided on the bottom side of the air separation box.

[0030] By adopting the above technical solution, after the solid particles enter the air separation box, air is blown obliquely toward the infiltration box through the set air separation tube, so that the metal particles and carbon fiber particles are blown up, and screened according to the difference in density of metal and carbon fiber. According to the difference in mass, they are screened through the first air separation port and the second air separation port.

[0031] In summary, the present application includes at least one of the following beneficial technical effects: 1. The oil tank is crushed by a device with a crushing roller, a heating element, a separator, an impregnation head and an air separation box. After crushing, the plastic is melted by heating. The molten plastic and solid particles are separated by a separator to recycle the plastic. The metal and carbon fiber in the solid particles are classified and recycled through impregnation and air separation, so as to realize the recycling of different types of waste high-pressure oil tanks; 2. Through the separation plate arranged in a lifting and sliding manner, the second separation hole opened on the separation plate, the separation rod connected to the separation plate by threaded rotation and the separation blades arranged, the molten plastic is stirred when the separation blades rotate, thereby improving the uniformity of plastic heating. At the same time, the first separation hole opened on the separation plate improves the efficiency of separating the molten plastic and the solid particles. When the separation 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 separation plate, thereby facilitating the classification and recycling of high-pressure oil tanks of different types of materials; 3. Through the sliding lifting plate, the linkage plate connected to the lifting plate, and the linkage gear meshing with the linkage plate, the lifting plate changes in stroke as the amount of solid particles changes, thereby adjusting the opening size of the third classification port and the opening size of the wetting head, and adding different wetting agents according to the amount of different solid particles, while reducing the outflow of molten plastic from the third classification port to affect the molten plastic. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of a waste high-pressure oil tank classification and recovery device according to an embodiment of the present application; Figure 2 It is a schematic diagram of the internal connection structure of a waste high-pressure oil tank classification and recovery device; Figure 3 yes Figure 2 Schematic diagram of the local structure of part A; Figure 4 It is a schematic diagram of the connection structure of a waste high-pressure oil tank classification and recycling device from another perspective; Figure 5 yes Figure 4 Schematic diagram of the local structure of part B.

[0033] Figure numerals: 1, crushing assembly; 11, crushing shell; 12, crushing roller; 13, feed port; 14, discharge port; 15, blocking member; 2, processing assembly; 21, processing shell; 22, heating member; 23, first classification port; 231, blocking plate; 24, second classification port; 25, separation member; 251, separation rod; 252, separation blade; 253, first separation hole; 254, second separation hole; 255, solid cavity; 256, liquid cavity; 26, adjusting member; 261, rotating gear; 262, rotating rack; 263, rotating member; 27, cleaning member Sorting plate; 271, third classification port; 272, separation plate; 28, synchronous part; 281, cleaning screw; 282, first synchronous bevel gear; 283, second synchronous bevel gear; 3, classification component; 31, infiltration box; 32, infiltration head; 33, infiltration plate; 34, air separation box; 35, air separation platform; 351, screening port; 352, air separation tube; 353, first air separation port; 354, second air separation port; 36, linkage part; 361, lifting plate; 362, extrusion plate; 363, linkage plate; 364, linkage gear; 37, infiltration rack; 38, infiltration hole. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] The embodiment of the present application discloses a device for classifying and recovering waste high-pressure oil tanks.

[0036] First of all, it should be noted that when classifying and recycling waste high-pressure oil tanks, relevant technicians need to dismantle the components according to different positions on the oil tanks, and classify and recycle the valve bodies and other components installed on the waste oil tanks to reduce the wear of metal parts on the recycling device, reduce the load of the recycling device, and reduce the problem that some parts cannot be recycled after being crushed. Figure 1 A waste high-pressure oil tank classification and recycling device comprises a crushing component 1, a processing component 2 and a classification component 3 which are arranged in sequence. Figure 1 and Figure 2 The pulverizing assembly 1 includes a vertically arranged pulverizing shell 11, in which a pulverizing roller 12 is rotatably arranged, and two groups of pulverizing rollers 12 are provided, which are arranged opposite to each other and rotate in opposite directions, with a gap for debris to pass through left between the two groups of pulverizing rollers 12, a feed port 13 is provided at the top of the pulverizing shell 11, a discharge port 14 is provided at the bottom of the pulverizing shell 11, and the pulverizing shell 11 is also provided with a blocking member 15 for movably blocking the discharge port 14, the blocking member 15 is a blocking plate slidably arranged in the pulverizing shell 11, and when a large amount of waste high-pressure oil tanks are put in at one time and the pulverizing is completed, the technician slides the blocking plate to block the discharge port 14 for subsequent melting classification and recycling operations.

[0037] Reference Figure 2 and Figure 3 The processing assembly 2 includes a processing shell 21 fixed to the bottom of the pulverizing shell 11, the processing shell 21 is connected to the pulverizing shell 11 through the discharge port 14, a heating element 22 is fixedly embedded on the inner peripheral wall of the processing shell 21, and the heating element 22 in the present application is a heating wire fixedly embedded in the inner wall of the processing shell 21, and a separation element 25 is also provided in the processing shell 21, a first classification port 23 is opened at the top of the processing shell 21, and a second classification port 24 is opened at the bottom of the processing shell 21, and the second classification port 24 is for molten plastic to flow out, and the separation element 25 includes a sliding lifting device set on the processing shell 21 The separation plate 272 inside and the separation rod 251 rotatably arranged inside the processing shell 21, the separation rod 251 is evenly fixed with multiple separation blades 252, the rotation axis of the separation rod 251 and the separation blade 252 is consistent with the height direction of the processing shell 21, and the separation blade 252 is provided with a first separation hole 253. After the heating element 22 heats the particles generated by the crushing to 330 degrees Celsius, the plastic particles melt at this time, and the molten plastic particles and the unmelted solid particles are stirred by the rotating separation blade 252 to improve the uniformity of melting. At the same time, the first separation hole 253 is set, and during the stirring process, the first separation hole 253 filters the molten plastic and solid particles while stirring, further improving the separation efficiency of the solid particles and the molten plastic.

[0038] At the same time, a separation plate 272 is slidably arranged in the processing shell 21. The separation plate 272 is arranged horizontally, and the sliding direction of the separation plate 272 is consistent with the height direction of the processing shell 21. The separation plate 272 is densely provided with second separation holes 254. When the separation plate 272 is raised or lowered, the molten plastic is squeezed downward through the second separation holes 254 by the action of air pressure. The separation plate 272 divides the processing shell 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 separation rod 251 is threadedly arranged on the separation plate 272. It should be noted that the thread here refers to a spirally arranged groove on the separation rod 251, and the separation plate 272 is provided with a block that is slidably adapted to the spirally arranged groove. When the separation plate 272 is raised or lowered, the separation rod 251 is driven to rotate, thereby realizing simultaneous filtration and stirring.

[0039] Reference Figure 4 and Figure 5At the same time, in order to realize the lifting and lowering adjustment operation of the separation plate 272, an adjusting member 26 is also provided in the processing shell 21. The adjusting member 26 includes a rotating gear 261 rotatably set on the inner wall of the processing shell 21, and a rotating rack 262 is fixedly connected to the separation plate 272. The rotating gear 261 is meshed with the rotating rack 262. A rotating member 263 for rotating the rotating gear 261 is fixedly connected to the side wall of the processing shell 21. In this application, the rotating member 263 is a rotating motor fixed on the outer wall of the processing shell 21, and the output end of the rotating motor is fixed to the axis of the rotating gear 261.

[0040] At the same time, when the separation plate 272 is lifted or lowered, the separation plate 272 is set to separate the molten plastic and the solid particles through the action of air pressure during the lifting process. Therefore, a sealing plate 231 is rotatably set at the first classification port 23 and the second classification port 24. The sealing plate 231 at the first classification port 23 is arranged obliquely toward the inside of the processing shell 21, and the end of the sealing plate 231 at the first classification port 23 away from the processing shell 21 is rotatably connected to the inner wall of the first classification port 23, and the end of the sealing plate 231 at the first classification port 23 away from its rotation axis is tightly fitted against the inner wall of the first classification port 23; at the same time, the sealing plate 231 at the second classification port 24 is arranged obliquely away from the processing shell 21, and the end of the sealing plate 231 at the second classification port 24 close to the processing shell 21 is rotatably connected to the inner wall of the second classification port 24, and the end of the sealing plate 231 at the second classification port 24 away from the processing shell 21 is tightly fitted against the inner wall of the second classification port 24.

[0041] Torsion springs are provided at the rotating shafts of the two sealing plates 231, so that when the separation plate 272 slides toward the direction close to the pulverizing shell 11, that is, rises, the inclined sealing blocks block the first classification port 23 and the second classification port 24. At this time, the volume of the solid cavity 255 becomes smaller and the volume of the liquid cavity 256 becomes larger. Therefore, under the action of pressure, the molten plastic is squeezed out 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.

[0042] When the separation plate 272 slides in the direction away from the pulverizing shell 11, that is, when it descends, under the action of air pressure, the sealing plate 231 rotates to a position to open the first classification port 23 and the second classification port 24. At this time, the separation plate 272 squeezes 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 world, thereby achieving a constant air pressure in the solid cavity 255 and reducing the problem of the separation plate 272 being difficult to descend due to air pressure problems.

[0043] After the separation plate 272 separates the solid particles and the molten plastic, the solid particles also need to be separated from the processing shell 21 in order to facilitate the subsequent separation of the carbon fiber and metal in the solid particles. Therefore, in order to solve this problem, a cleaning plate 27 is slidably arranged in the processing shell 21. The sliding direction of the cleaning plate 27 is inclined, and the cleaning plate 27 is always in contact with the surface of the separation plate 272. A third classification port 271 is provided on the side wall of the processing shell 21 close to the classification component 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, and the end of the separation plate 272 close to the third classification port 271 is arranged in an inclined state, and the height of the end side of the separation plate 272 close to the third classification port 271 is lower than the height away from the third classification port 271.

[0044] At this time, when there are many solid particles and it is not easy to scrape all the solid particles from the third classification port 271 at one time, the scraper is rotatably connected to the bottom side of the cleaning plate 27, and the scraper is in contact with the surface of the separation plate 272. The rotating shaft of the scraper is located on the side of the cleaning plate 27 close to the third classification port 271, and the end side of the scraper away from the third classification port 271 is movably pressed 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, the scraper is pressed against the cleaning plate 27 under the action of resistance, thereby achieving stable scraping of fixed particles on the surface of the separation plate 272; when the cleaning plate 27 slides in the direction away from the third classification port 271, the scraper can rotate at this time. Under the action of resistance, the scraper rotates in the direction 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 can be lifted and lowered reciprocatingly for multiple times to achieve the separation of solid particles and molten plastic.

[0045] In order to achieve 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 synchronous member 28 is also provided in the processing shell 21, and the synchronous member 28 includes a first synchronous bevel gear 282 coaxially fixed at the axis of the rotating gear 261 and a cleaning screw 281 rotatably arranged in the processing shell 21, and the rotation axis of the cleaning screw 281 is also arranged obliquely, and the cleaning plate 27 is threadedly arranged on the cleaning screw 281, and a second synchronous bevel gear 283 is coaxially fixed on the cleaning screw 281, and the first bevel gear is meshed with the second bevel gear. Therefore, when the rotating motor drives the rotating gear 261 to rotate, driving the rotating rack 262 and the separation plate 272 to lift and lower, at this time, the first synchronous bevel gear 282 simultaneously drives the second bevel gear to rotate, thereby driving the cleaning screw 281 to rotate, realizing the sliding of the cleaning plate 27, and then realizing the cleaning plate 27 scraping the surface of the separation plate 272.

[0046] The classification component 3 includes an infiltration box 31 fixed to one side of the processing shell 21 and connected through the third classification port 271, and an air separation box 34 connected to the infiltration box 31. The top side of the infiltration box 31 is provided with an infiltration head 32, and an infiltration agent is stored in the infiltration head 32. In the present application, the infiltration agent is benzene that dissolves plastic, and an extrusion plate 362 is rotatably arranged in the infiltration head 32. The extrusion plate 362 adjusts the opening size of the bottom side of the infiltration head 32. Since the amount of the infiltration agent added changes with the amount of solid particles, and if the third classification port 271 is always kept open, the molten plastic is also easy to flow into the infiltration box 31, resulting in a waste of the infiltration agent. Therefore, in order to adjust the amount of solid particles according to the amount of solid particles, In order to adjust the amount of wetting agent added, a lifting plate 361 is elastically slidably provided on the inner top wall of the processing shell 21, and the sliding direction of the lifting plate 361 is consistent with the height direction of the processing shell 21, and the lifting plate 361 is located on the side of the processing shell 21 close to the third classification port 271, and the separation plate 272 is movably fitted with the lifting plate 361. 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 fitted with 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 shell 21 together form a cavity for storing solid particles.

[0047] Normally, when recycling waste high-pressure oil tanks, manual advance classification is adopted, and then different recycling methods are adopted according to different materials. However, what the present application aims to solve is to solve the problem of manual pre-processing, that is, when there is no metal or carbon fiber in the recycled material, there is no need to perform the wetting operation. 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 shell 21. The linkage member 36 includes a linkage plate 363 slidably arranged on the processing shell 21, and 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 provided at the rotating shaft of the extrusion plate 362. A tooth groove is provided on the side of the linkage plate 363 away from the processing shell 21, and the linkage gear 364 is meshed with the tooth groove of the linkage plate 363.

[0048] When the content of solid particles is relatively high, the thickness of the solid particles between the lifting plate 361 and the separation plate 272 is relatively thick. 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 thickness of the lifting plate 361 depends on the thickness of the solid particles. Through this arrangement, the opening of the third classification port 271 also depends on the thickness of the solid particles. At the same time, the size of the opening of the wetting head 32 also depends on the thickness of the solid particles. This makes it easy to add different amounts of wetting agent according to the amount of solid particles, thereby saving the wetting agent and improving the dissolution efficiency of the plastic in the solid particles, and improving the recovery efficiency of metal and carbon fiber.

[0049] At the same time, an infiltration plate 33 is also slidably arranged in the infiltration box 31, and the sliding direction of the infiltration plate 33 is opposite to the sliding direction of the separation plate 272, that is, when the separation plate 272 rises to scrape the solid particles through the third classification port 271 into the infiltration box 31, the infiltration plate 33 slides toward the bottom side of the infiltration box 31, and at this time, the opening of the infiltration head 32 is adjusted according to the sliding degree of the lifting plate 361, so as to realize the infiltration 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 blocks the third classification port 271, and at this time, the infiltration plate 33 rises to lift and filter the solid particles after the infiltration, thereby realizing the complete separation of the solid particles and the plastic.

[0050] The infiltration plate 33 is densely covered with infiltration holes 38, and the diameter of the infiltration holes 38 is smaller than the diameter of the solid particles. At the same time, in order to achieve the synchronous movement of the separation plate 272 and the infiltration plate 33, an infiltration rack 37 is also slidably provided on the side wall of the infiltration box 31. The infiltration rack 37 is meshed with the rotating gear 261, and the infiltration rack 37 and the rotating rack 262 are located on opposite sides of the rotating gear 261.

[0051] In order to realize the subsequent air selection and screening, the height of the side of the infiltration plate 33 close to the processing shell 21 is higher than the height of the side away from the processing shell 21, and a screening port 351 is opened on the side wall of the infiltration box 31 close to the air selection box 34. The height of the screening port 351 is flush with the height of the infiltration plate 33 rising to the highest point of the stroke. At this time, an air selection platform 35 is provided in the air selection box 34, and the air selection platform 35 is also arranged in an inclined shape, and the inclination angle of the air selection platform 35 is consistent with the inclination angle of the infiltration plate 33. The bottom side of the air selection platform 35 is connected to the air selection tube 352, and the air selection tube 352 is arranged in an inclined direction away from the infiltration box 31, and the air selection box 34 is fixedly connected to the air selection tube 352. The air supply part is connected to the tube 352. After the impregnation, the solid particles follow the inclined impregnation plate 33 and pass through the screening port 351 into the air separation platform 35. The air is blown upward by the air separation tube 352 to distinguish the solid particles of different densities and masses. The bottom side of the air separation box 34 is also provided with a first air separation port 353 and a second air separation port 354. 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 box 34, and the first air separation port 353 is located on the side close to the impregnation box 31, and the second air separation port 354 is located on the side away from the impregnation box 31. The first air separation port 353 is for metal particles to fall, and the second air separation port 354 is for carbon fiber particles to fall.

[0052] The implementation principle of the waste high-pressure oil tank classification and recycling device of the embodiment of the present application is as follows: when recycling different types of high-pressure oil tanks, the technicians put different high-pressure oil tanks into the feed port 13 of the crushing shell 11, and crush the oil tanks into particles through the crushing action of the crushing roller 12, and enter the processing shell 21 through the discharge port 14. At this time, the heating element 22 in the processing shell 21 works to heat the granular waste oil tanks. Until the plastic particles are completely melted, the rotating motor starts working to drive the rotating gear 261 to rotate. At this time, the separation plate 272 rises and falls under the action of the rotating gear 261 to separate the molten plastic from the solid particles, so that the molten plastic enters the liquid cavity 256 below, and the solid particles remain in the solid cavity 255 located above the separation plate 272. At this time, when the separation plate 272 rises, the cleaning plate 27 slides to scrape off 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 selection platform 35 for subsequent air selection and screening.

[0053] During the rising process of the separation plate 272, solid particles of different thicknesses are pressed 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 size of the opening of the wetting head 32 also depends on the thickness of the solid particles, so that it is convenient to add different amounts of wetting agent according to the amount of solid particles, thereby realizing the plastic dissolution of the solid particles contained in the solid particles and improving the separation efficiency of metal, carbon fiber and plastic.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for classifying and recycling waste high-pressure oil tanks, characterized in that: It comprises a crushing component (1), a processing component (2) and a classification component (3); The pulverizing assembly (1) comprises a pulverizing shell (11) and pulverizing rollers (12) rotatably arranged in the pulverizing shell (11); the pulverizing rollers (12) are provided in two groups, and the two groups of pulverizing rollers (12) are arranged to rotate relative to each other, and a gap is left between the two groups of pulverizing rollers (12) for debris to pass through; a feed port (13) is provided at the top end of the pulverizing shell (11), and a discharge port (14) is provided at the bottom end of the pulverizing shell (11); and a blocking member (15) for movably blocking the discharge port (14) is also provided on the pulverizing shell (11); The processing assembly (2) comprises a processing shell (21) connected to the discharge port (14), a heating element (22) disposed in the processing shell (21), and a separation element (25) disposed in the processing shell (21); the processing shell (21) is provided with a first classification port (23) and a second classification port (24); the second classification port (24) is for molten plastic to flow out; The classification component (3) comprises an infiltration box (31) connected to the processing shell (21) and an air separation box (34) connected to the infiltration box (31); an infiltration head (32) for adding an infiltration agent into the infiltration box (31) is provided in the infiltration box (31); an air separation tube (352) is provided in the air separation box (34), and the air separation tube (352) is arranged on one side of the air separation box (34).

2. The device for classifying and recycling waste high-pressure oil tanks according to claim 1 is characterized in that: The separation member (25) comprises a separation rod (251) rotatably arranged in the processing shell (21) and a separation blade (252) arranged on the separation rod (251); the separation blade (252) is densely provided with first separation holes (253); the end side of the separation blade (252) movably extends into the mixed liquid, and the end side of the separation blade (252) movably fits with the mixed liquid; a separation plate (272) is slidably arranged in the processing shell (21); the separation plate (272) is densely provided with second separation holes (254); the separation plate (272) divides the processing shell (21) into a solid cavity (255) and a liquid cavity (256); and an adjustment member (26) for slidingly adjusting the separation plate (272) is also provided in the processing shell (21).

3. The device for classifying and recovering waste high-pressure oil tanks according to claim 2 is characterized in that: The separation rod (251) is threadedly arranged on the separation plate (272); the adjustment member (26) comprises a rotating gear (261) rotatably arranged in the processing shell (21); a rotating rack (262) is provided on the separation plate (272); the rotating gear (261) is meshed with the rotating rack (262); a rotating member (263) for driving the rotating gear (261) to rotate is provided in the processing shell (21); and a heating member (22) is wound and embedded in the processing shell (21).

4. The device for classifying and recovering waste high-pressure oil tanks according to claim 3 is characterized in that: A blocking plate (231) is rotatably provided at each of the first classification opening (23) and the second classification opening (24); the end of the blocking plate (231) away from the rotation axis is movably fitted and tightly pressed against the inner peripheral wall of the first classification opening (23) / the second classification opening (24); when the separation plate (272) slides in a direction away from the pulverizing shell (11), the blocking plate (231) rotates until both the first classification opening (23) and the second classification opening (24) remain open; When the separation plate (272) slides in a direction close to the pulverizing shell (11), the blocking plate (231) rotates until both the first classification opening (23) and the second classification opening (24) remain closed.

5. The device for classifying and recovering waste high-pressure oil tanks according to claim 4 is characterized in that: The processing shell (21) is also provided with a third classification opening (271), a cleaning plate (27) is slidably provided in the processing shell (21), the cleaning plate (27) is arranged at an angle, the cleaning plate (27) is in contact with the surface of the separation plate (272), and a synchronizing member (28) is also provided in the processing shell (21) for synchronously slidingly adjusting the separation plate (272) and the cleaning plate (27).

6. The device for classifying and recycling waste high-pressure oil tanks according to claim 5 is characterized in that: A cleaning screw (281) is rotatably arranged in the processing housing (21); the cleaning plate (27) is threadedly arranged on the cleaning screw (281); the synchronous member (28) comprises a first synchronous bevel gear (282) coaxially arranged at the axis of the rotating gear (261) and a second synchronous bevel gear (283) arranged on the cleaning screw (281); the first synchronous bevel gear (282) is meshed with the second synchronous bevel gear (283).

7. The device for classifying and recovering waste high-pressure oil tanks according to claim 6 is characterized by: The infiltration box (31) is connected to the third classification port (271) of the processing shell (21), and an extrusion plate (362) is rotatably arranged in the infiltration head (32), and the extrusion plate (362) adjusts the opening of the infiltration head (32). The processing shell (21) is also provided with a linkage member (36) for synchronously adjusting the separation plate (272) and the extrusion plate (362).

8. The device for classifying and recovering waste high-pressure oil tanks according to claim 7 is characterized in that: The linkage member (36) comprises a lifting plate (361) slidably arranged in the processing shell (21), and the lifting plate (361) is movably fitted with the separation plate (272). The lifting plate (361) is located on a side of the separation plate (272) close to the cleaning plate (27), and the lifting plate (361) is elastically arranged in the processing shell (21). The linkage member (36) comprises a linkage plate (363) slidably arranged on the inner wall of the processing shell (21), and the linkage plate (363) movably blocks the third classification port (271). The linkage plate (363) is connected to the lifting plate (361), and a tooth groove is provided on a side of the linkage plate (363) close to the infiltration box (31). A linkage gear (364) is provided at the rotating shaft of the extrusion plate (362), and the linkage gear (364) is meshed with the linkage plate (363).

9. The device for classifying and recycling waste high-pressure oil tanks according to claim 8 is characterized in that: A wetting plate (33) is slidably arranged in the wetting box (31), the sliding direction of the wetting plate (33) is opposite to that of the separation plate (272), and a wetting rack (37) is provided on the wetting plate (33), the wetting rack (37) is meshed with the rotating gear (261), and the wetting plate (33) is densely covered with wetting holes (38).

10. The device for classifying and recycling waste high-pressure oil tanks according to claim 8, characterized in that: The side of the infiltration box (31) away from the processing shell (21) is provided with a screening port (351) connected to the air separation box (34); the air separation box (34) is provided with an air separation platform (35) at the connection point with the processing shell (21); the bottom side of the air separation platform (35) is connected to an air separation tube (352); the air separation tube (352) is arranged inclined toward the side away from the infiltration box (31); the bottom side of the air separation box (34) is provided with a first air separation port (353) and a second air separation port (354).

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