Tire rubber polymer pulverizing apparatus and method

Abstract

The application discloses a kind of tire rubber polymer crushing equipment and crushing method, it is related to rubber polymer technical field, including collection component, crushing component and conveying component, the crushing component includes fixed mill disc, the inside of fixed mill disc is equipped with dynamic mill disc, low-temperature cavity is opened in the inside of dynamic mill disc, and low-temperature cavity is injected with ultralow temperature gas inside, it is used to make tire rubber polymer low temperature brittle in crushing, the bottom of fixed mill disc is equipped with installation port, and the inner wall between installation port is fixedly connected with screen mesh.The application is injected with ultralow temperature gas to the inside of injection pipe, the low temperature in the inside of low-temperature cavity will be transferred to tire rubber polymer fragment in crushing, so that tire rubber polymer vitrification, and the fragment after being fragile will be more easily polished into fine powder, solve the problem that tire rubber polymer is not enough fine in crushing at present under room temperature.

Description

Technical Field

[0001] This invention relates to the field of rubber polymer technology, specifically to a tire rubber polymer pulverizing device and pulverizing method. Background Technology

[0002] Tire rubber polymers are high molecular materials, which are macromolecular compounds composed of many repeating monomer units linked by chemical bonds. They play a key role in tire manufacturing, enabling tires to withstand the weight of vehicles and various forces during driving, such as impact and friction. At the same time, they can adapt to different road conditions, ensuring the comfort and stability of vehicle driving. For waste tire rubber polymers, crushing is an important pretreatment step for recycling. By crushing, waste tire rubber can be turned into rubber powder with a certain particle size. Then, it can be reprocessed into recycled rubber or used in other fields using various methods.

[0003] In the existing technology, the pulverization of tire rubber polymers is usually carried out at room temperature. However, because rubber has high elasticity and toughness at room temperature, it is difficult to pulverize. The resulting rubber particles are usually coarse and prone to agglomeration, which can affect subsequent screening and grading processes, and may also cause equipment blockage, affecting the continuity of production.

[0004] Therefore, we propose a tire rubber polymer pulverizing device and pulverizing method to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a tire rubber polymer pulverizing device and pulverizing method to solve the problem mentioned in the background art that current rubber pulverizing at room temperature results in insufficient pulverization.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tire rubber polymer pulverizing device, comprising a collecting component, a pulverizing component, and a conveying component. The pulverizing component includes a fixed grinding disc, inside which is a moving grinding disc. A low-temperature chamber is formed inside the moving grinding disc, and the chamber is filled with ultra-low temperature gas to make the pulverized tire rubber polymer brittle at low temperatures. An installation port is formed at the bottom of the fixed grinding disc, and a strainer is fixedly connected to the inner wall of the installation port for screening out the pulverized rubber polymer. A vent pipe is fixedly connected to the inner wall of the low-temperature chamber, and one end of the vent pipe is fixedly connected to an injection pipe. A threaded groove is formed on the outer surface of the moving grinding disc corresponding to the vent pipe. The conveying component includes a circulation pipe, and multiple conveying pipes are fixedly connected between the inner wall of the circulation pipe and the outer surface of the fixed grinding disc. The circulation pipe and the conveying pipes are used to convey low-temperature gas. Multiple air jets are formed on the inner wall of each conveying pipe, and the air jets are arranged in a bucket shape to inject low-temperature gas into the interior of the fixed grinding disc.

[0007] Preferably, the top of the fixed grinding disc is fixedly connected with a feeding hopper, the inner wall of the fixed grinding disc is fixedly connected with a plurality of fixed grinding strips in the circumferential direction, the inner wall of one side of the fixed grinding disc is fixedly connected with a limiting block, the dynamic grinding disc is rotatably sleeved outside the limiting block, one side of the dynamic grinding disc is provided with a rotating groove, the other side of the dynamic grinding disc is fixedly connected with a rotating sleeve, the outer surface of the rotating sleeve is rotatably connected with the inner wall of the rotating groove, one side of the fixed grinding disc is provided with a rotating hole, and one side of the fixed grinding disc is fixedly connected with a positioning rotating block.

[0008] Preferably, the center of the dynamic grinding disc is rotatable on the inner wall of the rotating hole, the outer surface of the center of the dynamic grinding disc is fixedly connected with a driven rotating wheel, the outer surface of the driven rotating wheel is movably connected with the outer surface of the driving rotating wheel through a connecting belt, the outer surface of one side of the fixed grinding disc is fixedly connected with a supporting plate, the top of the supporting plate is provided with a driving motor, the inner walls of the two sides of the low-temperature cavity 217 are fixedly connected with a plurality of reinforcing rods, and the ends of the plurality of reinforcing rods are fixedly connected with a center supporting block.

[0009] Preferably, one side of the fixed grinding disc is provided with a refrigeration machine, the top of the supporting plate is provided with an air pump, the input end of the air pump is fixedly connected with an air inlet pipe, one end of the air inlet pipe is fixedly installed at the connecting end of the refrigeration machine, the output end of the air pump is fixedly connected with an air outlet pipe, the outer surface of the circulating pipe is fixedly connected with a mounting nozzle, one end of the mounting nozzle is fixedly connected with one end of the air outlet pipe, the outer surface of the fixed grinding disc is fixedly connected with the outer surface of the circulating pipe through a reinforcing frame, and the outer surface of the dynamic grinding disc is fixedly connected with a plurality of dynamic grinding strips in the circumferential direction.

[0010] Preferably, the inner wall of the threaded groove is threadedly connected with a sealing threaded plug, the bottom of the sealing threaded plug is provided with a clamping groove, the air pipe is movably arranged in the clamping groove, the inner top surface of the clamping groove is provided with a clamping sleeve, the air injection pipe is movably arranged in the clamping sleeve, the inner top surface of the clamping sleeve is fixedly connected with a clamping rod, and the clamping rod is inserted into the inner wall of the air injection pipe.

[0011] Preferably, the outer surface of the fixed grinding disc is fixedly connected with a screening assembly, the screening assembly comprises two mounting frames fixedly installed on the two sides of the fixed grinding disc, the bottom of one of the mounting frames is fixedly connected with a receiving plate, the bottom of the receiving plate is provided with a vibration motor, and the bottom of the other mounting frame is provided with an electromagnetic coil.

[0012] Preferably, the front surface and the rear surface of the fixed grinding disc are fixedly connected with a plurality of connecting elastic rods, the bottom ends of the plurality of connecting elastic rods are fixedly connected with a fixed frame, the inner wall of the fixed frame is fixedly connected with a screen, the screen is used for sorting out steel wire scraps, and the vibration motor and the electromagnetic coil are in contact with the fixed frame.

[0013] Preferably, the collecting assembly comprises a bearing chassis, the bottom of the bearing chassis is fixedly connected with a supporting leg, the top of the bearing chassis is fixedly connected with a fixed plate near both sides, the top of the two fixed plates is fixedly connected with the two sides of the fixed grinding disc respectively, the top of the bearing chassis is fixedly connected with two supporting plates near the other two side edges, a limiting rod is fixedly connected between the outer surfaces of every two opposite supporting plates, a plurality of limiting boxes are slidably connected to the outer surface of each limiting rod, and two material collecting boxes are symmetrically fixed between the tops of the plurality of limiting boxes.

[0014] Preferably, the bottom of the two material collecting boxes is fixedly connected with a gear rack, the top of the bearing chassis is provided with a forward and reverse motor, the output shaft of the forward and reverse motor is fixedly connected with a driving gear, and the outer surface of the driving gear is in meshing connection with the bottom of the gear rack.

[0015] A grinding method of a tire rubber polymer grinding device, comprising the following steps:

[0016] S1, by pouring the broken tire rubber polymer fragments into the inside of the feeding hopper, next, starting the driving motor, the output shaft of the driving motor drives the driving runner to rotate, under the connecting action of the connecting belt, the driven runner drives the dynamic grinding disc to rotate, the broken tire rubber polymer enters the gap between the fixed grinding disc and the dynamic grinding disc from the feeding hopper, under the mutual grinding of the fixed grinding bar and the dynamic grinding bar, the tire rubber polymer will be ground into powder, the fine powder of successful grinding will fall from the screen, and the fragments that are not completely ground will remain in place for continuous grinding;

[0017] S2, before starting grinding, by injecting ultra-low temperature gas into the gas injection pipe, then inserting the sealing threaded plug into the threaded groove, and inserting the clamping rod into the gas injection pipe, the low temperature in the low temperature cavity will be transferred to the tire rubber polymer fragments in the grinding process, so that the tire rubber polymer is vitrified and becomes brittle, the brittle fragments will be more easily ground into fine powder, by starting the refrigerator and the air pump, the air pump delivers the cold air generated by the refrigerator to the circulating pipe through the air inlet pipe and the air outlet pipe, and guides the cold air to the inside of the fixed grinding disc through the plurality of delivery pipes and the air injection ports;

[0018] S3, by energizing the electromagnetic coil, a strong magnetic field is generated around it, the screen made of metal iron is placed in the strong magnetic field, the ferromagnetic material in the screen will be magnetized, under the magnetic adsorption effect, the screen with magnetism will adsorb the steel wire scraps, and the rubber polymer powder will fall through the screen, by starting the vibration motor, the vibration is transmitted to the fixed frame and the screen, so that the rubber polymer powder on the screen can be sieved out, then the electromagnetic coil is de-energized, under the continuous vibration of the vibration motor, the adsorbed steel wire scraps are vibrated and fall into the corresponding collecting box;

[0019] S4, by starting the positive and negative motor, the output shaft is rotated, thereby driving the driving gear to rotate, since the driving gear and the gear row are engaged with each other, the gear row can be reciprocated, the gear row is installed at the bottom of the two collecting boxes, by changing the position of the gear row, the collecting box is moved to the corresponding position, when collecting the steel wire scraps, the corresponding collecting box is moved to the position below the screen, when collecting the rubber polymer powder, the other collecting box is moved to the position below the screen.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] 1、In use, by injecting ultra-low temperature gas into the gas injection pipe, the low temperature in the low temperature cavity will be transferred to the tire rubber polymer fragments in the crushing, making the tire rubber polymer glassy, the brittle fragments will be easier to grind into fine powder, solving the problem that the tire rubber polymer is not fine enough when crushed at room temperature, by starting the refrigerator and the air pump, the air pump delivers the cold air produced by the refrigerator to the circulating pipe through the air inlet pipe and the air outlet pipe, and guides it to the inside of the fixed grinding disc through multiple delivery pipes and air outlets, the low temperature gas is directly sprayed on the surface of the fragments in the crushing, accelerating the glassification of the fragments, the crushed tire rubber polymer enters the gap between the fixed grinding strip and the movable grinding strip, under the mutual grinding of the fixed grinding strip and the movable grinding strip, the tire rubber polymer is ground into powder, the successfully crushed fine powder falls through the screen, and the fragments that are not completely crushed remain in place for further grinding;

[0022] 2、In use, by energizing the electromagnetic coil, the ferromagnetic material in the screen will be magnetized, thereby having magnetism, under the magnetic adsorption effect, the screen with magnetism will adsorb the steel wire scraps, and the rubber polymer powder will fall through the screen, by starting the vibration motor, the rubber polymer powder on the screen is sieved out, the electromagnetic coil is de-energized, and the adsorbed steel wire scraps are vibrated and fall into the corresponding collecting box, so as to have the benefit of recycling the steel wire metal contained in the tire rubber polymer;

[0023] 3. In use, two aggregate boxes 107 collect different materials, one is used to collect steel wire scraps, and the other is used to collect screened rubber polymer fine powder. By starting the forward and reverse motor, the aggregate box is moved to the corresponding position, and by sleeving the limiting frame outside the limiting rod, the stability of the two aggregate boxes during movement can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a first perspective view of a tire rubber polymer crushing equipment according to the present application.

[0025] Figure 2 It is a second perspective view of a tire rubber polymer crushing equipment according to the present application.

[0026] Figure 3 It is a first perspective view of a collecting assembly part of a tire rubber polymer crushing equipment according to the present application.

[0027] Figure 4 It is a second perspective view of a collecting assembly part of a tire rubber polymer crushing equipment according to the present application.

[0028] Figure 5 It is a perspective view of a screening assembly part of a tire rubber polymer crushing equipment according to the present application.

[0029] Figure 6 It is a perspective view of a conveying assembly part of a tire rubber polymer crushing equipment according to the present application.

[0030] Figure 7 It is a first perspective view of a crushing assembly part of a tire rubber polymer crushing equipment according to the present application.

[0031] Figure 8 It is a second perspective view of a crushing assembly part of a tire rubber polymer crushing equipment according to the present application.

[0032] Figure 9 It is a third perspective view of a crushing assembly part of a tire rubber polymer crushing equipment according to the present application.

[0033] Figure 10 It is a perspective view of a circulating pipe part of a tire rubber polymer crushing equipment according to the present application.

[0034] Figure 11 It is a first perspective view of a tire rubber polymer crushing equipment according to the present application. Figure 8 It is an enlarged view of A in the present application.

[0035] In the figure:

[0036] 1, Collecting assembly; 101, Bearing chassis; 102, Support leg; 103, Support plate; 104, Limiting rod; 105, Fixed plate; 106, Limiting frame; 107, Material collecting box; 108, Forward-reverse motor; 109, Driving gear; 110, Gear row; 2, Crushing assembly; 201, Fixed grinding disc; 202, Mounting port; 203, Mesh screen; 204, Feeding hopper; 205, Fixed grinding strip; 206, Rotation hole; 207, Driven rotating wheel; 208, Connecting belt; 209, Driving rotating wheel; 210, Positioning rotating block; 211, Limiting block; 212, Rotation sleeve; 213, Movable grinding strip; 214, Rotation groove; 215, Center support block; 216, Reinforcing rod; 217, Low-temperature cavity; 218, Threaded groove; 219, Air pipe; 220, Gas injection pipe; 221, Clamping groove; 222, Clamping rod; 223, Sealing threaded plug; 224, Clamping sleeve; 225, Movable grinding disc; 226, Driving motor; 3, Conveying assembly; 301, Circulation pipe; 302, Conveying pipe; 303, Reinforcing frame; 304, Refrigerator; 305, Air pump; 306, Air inlet pipe; 307, Mounting nozzle; 308, Air outlet pipe; 309, Air injection port; 4, Screening assembly; 401, Mounting frame; 402, Electromagnetic coil; 403, Fixed frame; 404, Connecting elastic rod; 405, Screen mesh; 406, Bearing plate; 407, Vibration motor. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] Embodiment one: refer to Figure 1 - Figure 11The present application provides a tire rubber polymer crushing equipment, which comprises a collecting assembly 1, a crushing assembly 2 and a conveying assembly 3. The crushing assembly 2 comprises a fixed grinding disc 201. The inside of the fixed grinding disc 201 is provided with a movable grinding disc 225. The inside of the movable grinding disc 225 is provided with a low-temperature cavity 217. The inside of the low-temperature cavity 217 is filled with an ultralow-temperature gas, which is used to make the tire rubber polymer in crushing low-temperature brittle. The bottom of the fixed grinding disc 201 is provided with a mounting opening 202. The inner wall of the mounting opening 202 is fixedly connected with a mesh screen 203. The mesh screen 203 is used to screen the crushed rubber polymer. The inner wall of the low-temperature cavity 217 is fixedly connected with an air pipe 219. One end of the air pipe 219 is fixedly connected with a gas injection pipe 220. The outer surface of the movable grinding disc 225 is provided with a threaded groove 218 corresponding to the air pipe 219.The conveying assembly 3 includes a circulation pipe 301. Multiple conveying pipes 302 are fixedly connected between the inner wall of the circulation pipe 301 and the outer surface of the fixed grinding disc 201. The circulation pipe 301 and the conveying pipes 302 are used to convey cryogenic gas. Multiple jet nozzles 309 are provided on the inner wall of each conveying pipe 302, and these nozzles are funnel-shaped, used to inject cryogenic gas into the interior of the fixed grinding disc 201. A feed hopper 204 is fixedly connected to the top of the fixed grinding disc 201. Multiple fixed grinding strips 205 are fixedly connected to the inner wall of the fixed grinding disc 201 along the circumferential direction. A limiting block 211 is fixedly connected to one side of the inner wall of the fixed grinding disc 201. The moving grinding disc 225 is rotatably sleeved on the limiting block 211. Externally, a rotating groove 214 is provided on one side of the moving grinding disc 225, and a rotating sleeve 212 is fixedly connected to the inner wall of the other side of the moving grinding disc 225. The outer surface of the rotating sleeve 212 is rotatably connected to the inner wall of the rotating groove 214. A rotating hole 206 is provided on one side of the fixed grinding disc 201, and a positioning rotating block 210 is fixedly connected to one side of the fixed grinding disc 201. The center of the moving grinding disc 225 rotates within the inner wall of the rotating hole 206. A driven rotating wheel 207 is fixedly connected to the outer surface of the center of the moving grinding disc 225. A driving rotating wheel 209 is rotatably sleeved on the outer surface of the positioning rotating block 210. A connecting belt 208 is movably connected between the outer surface of the driven rotating wheel 207 and the outer surface of the driving rotating wheel 209. A support plate is fixedly connected to one outer surface of the grinding disc 201. A drive motor 226 is installed on the top of the support plate. Multiple reinforcing rods 216 are fixedly connected to both inner walls of the low-temperature chamber 217. A central support block 215 is fixedly connected between one end of each reinforcing rod 216. A refrigerator 304 is installed on one side of the grinding disc 201. An air pump 305 is installed on the top of the support plate. An air inlet pipe 306 is fixedly connected to the input end of the air pump 305. One end of the air inlet pipe 306 is fixedly installed at the connection end of the refrigerator 304. An air outlet pipe 308 is fixedly connected to the output end of the air pump 305. An installation nozzle 307 is fixedly connected to the outer surface of the circulation pipe 301. One end of the installation nozzle 307... A reinforcing bracket 303 is fixedly connected between the outer surface of the fixed grinding disc 201 and the outer surface of the circulation pipe 301, and one end of the air outlet pipe 308 is fixedly connected to the air outlet pipe 308. Multiple moving grinding strips 213 are fixedly connected to the outer surface of the moving grinding disc 225 along the circumferential direction. A sealing threaded plug 223 is threadedly connected to the inner wall of the threaded groove 218. A slot 221 is provided at the bottom of the sealing threaded plug 223. An air vent pipe 219 is movably disposed inside the slot 221. A retaining sleeve 224 is provided on the top inner surface of the slot 221. An air injection pipe 220 is movably disposed inside the retaining sleeve 224. A retaining rod 222 is fixedly connected to the top inner surface of the retaining sleeve 224 and is inserted into the inner wall of the air injection pipe 220.

[0039] In this embodiment, in use, by pouring the crushed tire rubber polymer fragments into the inside of the feed hopper 204, next, the driving motor 226 is started, and the output shaft drives the driving runner 209 to rotate, under the connecting action of the connecting belt 208, the driven runner 207 drives the dynamic mill plate 225 to rotate, at this time, the rotating sleeve 212 and the limiting block 211 simultaneously position the two sides of the dynamic mill plate 225, which improves the stability of the dynamic mill plate 225 during rotation and crushing. The crushed tire rubber polymer enters the gap between the fixed mill plate 201 and the dynamic mill plate 225 from the feed hopper 204, under the mutual grinding of the fixed mill bar 205 and the dynamic mill bar 213, the tire rubber polymer will be ground into powder, the fine powder that is successfully crushed will fall from the mesh screen 203, and the fragments that are not completely crushed will remain in place and continue to be ground. Before starting to grind, by injecting ultra-low temperature gas into the inside of the gas injection pipe 220, and then inserting the sealing threaded plug 223 into the threaded groove 218, this connection uses a double-thread connection method, which has good sealing performance. At this time, the clamping rod 222 is inserted into the inside of the gas injection pipe 220, which can prevent the ultra-low temperature gas in the low temperature cavity 217 from flowing out. The low temperature in the low temperature cavity 217 will be transferred to the tire rubber polymer fragments being crushed, causing the tire rubber polymer to glassify and become brittle, making it easier to grind into fine powder. This solves the problem of insufficient fineness of the crushed tire rubber polymer at room temperature. The central support block 215 can occupy the middle part of the low temperature cavity 217, so that the ultra-low temperature gas can be dispersed around it, making it closer to the fragments and allowing the low temperature to be transferred faster. At the same time, by starting the refrigerator 304 and the air pump 305, the air pump 305 delivers the cold air produced by the refrigerator 304 to the inside of the circulating pipe 301 through the air inlet pipe 306 and the air outlet pipe 308, and guides it to the inside of the fixed mill plate 201 through multiple delivery pipes 302 and air injection ports 309. The low temperature gas is directly sprayed on the surface of the fragments being crushed, accelerating the glassification of the fragments. The air injection port 309 has a wide inlet end and a narrow outlet end, so fine powder is not easy to enter the inside of the air injection port 309. Even if some of the fine powder enters the inside of the air injection port 309, it will be easily blown out and will not be blocked.

[0040] Embodiment Two: Figure 1 - Figure 11As shown, the outer surface of the fixed grinding disc 201 is fixedly connected with a screening assembly 4, the screening assembly 4 comprises two mounting racks 401 fixedly installed on the two sides of the fixed grinding disc 201, the bottom of one of the mounting racks 401 is fixedly connected with a receiving plate 406, the bottom of the receiving plate 406 is provided with a vibration motor 407, the bottom of the other mounting rack 401 is provided with an electromagnetic coil 402, the front surface and the rear surface of the fixed grinding disc 201 are fixedly connected with a plurality of connecting elastic rods 404, the bottom ends of the plurality of connecting elastic rods 404 are fixedly connected with a fixed frame 403, the inner wall of the fixed frame 403 is fixedly connected with a screen 405, and the screen 405 is used for sorting out steel wire scraps, the vibration motor 407 and the electromagnetic coil 402 are in contact with the fixed frame 403, and the collecting assembly 1 comprises a bearing bottom disc 101, the top of the bearing bottom disc 101 is fixedly connected with two support plates 103 near the other two side edges, the outer surfaces of every two opposite support plates 103 are fixedly connected with a limiting rod 104, the outer surface of each limiting rod 104 is slidably connected with a plurality of limiting frames 106, and the top of the plurality of limiting frames 106 is symmetrically fixed with two material collecting boxes 107.

[0041] In this embodiment, in use, the electromagnetic coil 402 is energized to generate a strong magnetic field around it, the screen 405 made of metal iron is placed in the strong magnetic field, the ferromagnetic substances in the screen 405 are magnetized to carry magnetism, since steel wires are added in the tire to improve its wear resistance and puncture resistance, the fine powder after crushing is mixed with steel wires, under the magnetic adsorption effect, the screen 405 with magnetism can adsorb the steel wire scraps, and the rubber polymer fine powder falls through the screen 405, at this time, the vibration motor 407 is started to generate vibration and transmit the vibration to the fixed frame 403 and the screen 405, so that the rubber polymer fine powder on the screen 405 can be accelerated to be sieved, then the electromagnetic coil 402 is de-energized, under the continuous vibration of the vibration motor 407, the magnetic domain structure inside the screen 405 changes, the ordered arrangement of the magnetic domain is disturbed, and then the magnetism gradually weakens, so that the adsorbed steel wire scraps can be vibrated and fallen into the corresponding material collecting box 107, thus having the benefit of recycling the steel wires contained in the tire rubber polymer.

[0042] Embodiment three: Figure 1 - Figure 11As shown, the collecting assembly 1 comprises a bearing chassis 101, the bottom of the bearing chassis 101 is fixedly connected with support legs 102, the top of the bearing chassis 101 is fixedly connected with fixed plates 105 near both sides, the top of the two fixed plates 105 is fixedly connected with the two sides of the fixed grinding disc 201 respectively, the top of the bearing chassis 101 is fixedly connected with two support plates 103 near the other two side edges, the outer surfaces of every two opposite support plates 103 are fixedly connected with limiting rods 104, the outer surfaces of the limiting rods 104 are slidably connected with limiting frames 106, the top of the limiting frames 106 is symmetrically fixed with two material collecting boxes 107, the bottom of the two material collecting boxes 107 is fixedly connected with a gear rack 110, the top of the bearing chassis 101 is provided with a forward and reverse motor 108, the output shaft of the forward and reverse motor 108 is fixedly connected with a driving gear 109, and the outer surface of the driving gear 109 is meshedly connected with the bottom of the gear rack 110.

[0043] In this embodiment, in use, the materials collected by the two material collecting boxes 107 are different, one is used to collect steel wire scraps, and the other is used to collect screened rubber polymer fine powder, by starting the forward and reverse motor 108, the output shaft is rotated, so as to drive the driving gear 109 to rotate, because the driving gear 109 and the gear rack 110 are mutually engaged, so that the gear rack 110 can reciprocate, the gear rack 110 is installed at the bottom of the two material collecting boxes 107, by changing the position of the gear rack 110, the material collecting box 107 is driven to move to the corresponding position, when collecting steel wire scraps, the corresponding material collecting box 107 is moved below the screen 405, when collecting rubber polymer fine powder, the other material collecting box 107 is moved below the screen 405, at this time, the limiting frame 106 is sleeved outside the limiting rod 104 to slide, so as to ensure the stability of the two material collecting boxes 107 when moving.

[0044] The crushing method and working principle of the device: in use, by pouring the broken tire rubber polymer fragments into the inside of the feeding hopper 204, next, start the drive motor 226, make its output shaft drive the driving runner 209 to rotate, under the connecting action of the connecting belt 208, the driven runner 207 drives the dynamic mill 225 to rotate, at this time, the rotating sleeve 212 and the limiting block 211 position the two sides of the dynamic mill 225 at the same time, improve the stability of the dynamic mill 225 when it rotates and crushes, the broken tire rubber polymer enters the gap between the fixed mill 201 and the dynamic mill 225 from the feeding hopper 204, under the mutual grinding of the fixed mill bar 205 and the dynamic mill bar 213, the tire rubber polymer will be ground into powder, the fine powder that is successfully crushed will fall from the screen 203, the fragments that are not completely crushed will remain in place and continue to be ground, before starting to grind, by injecting ultra-low temperature gas into the inside of the gas injection pipe 220, then put the sealing screw plug 223 into the threaded groove 218, this connection uses a double-layer threaded connection method, which has good sealing performance, at this time, the clamping rod 222 is inserted into the inside of the gas injection pipe 220, which can prevent the ultra-low temperature gas in the low temperature cavity 217 from flowing out, the low temperature in the low temperature cavity 217 will be transferred to the tire rubber polymer fragments in the crushing process, making the tire rubber polymer vitrify and become brittle, the brittle fragments will be easier to grind into fine powder, among them, the center support block 215 can occupy the middle part of the low temperature cavity 217, so that the ultra-low temperature gas can be dispersed around, so that it is closer to the fragments, making the low temperature transfer faster, at the same time, by starting the refrigerator 304 and the air pump 305, the air pump 305 delivers the cold air produced by the refrigerator 304 to the inside of the circulating pipe 301 through the air inlet pipe 306 and the air outlet pipe 308, and guides it to the inside of the fixed mill 201 through multiple delivery pipes 302 and air injection ports 309, the low temperature gas is directly sprayed on the surface of the fragments in the crushing process, accelerating the vitrification of the fragments, among them, the air inlet end of the air injection port 309 is wide and the air outlet end is narrow, so the fine powder is not easy to enter the inside of the air injection port 309, in use, by energizing the electromagnetic coil 402, a strong magnetic field is generated around it, the screen 405 made of metal iron is placed in the strong magnetic field, the ferromagnetic substances in the screen 405 will be magnetized, thereby carrying magnetism, since steel wire is added to the tire to improve its wear resistance and puncture resistance, therefore, steel wire fragments are mixed in the crushed fine powder, under the action of magnetic adsorption, the screen 405 with magnetism will adsorb the steel wire fragments, and the rubber polymer fine powder will fall through the screen 405, at this time, by starting the vibration motor 407, make it produce vibration, and transmit the vibration to the fixed frame 403 and the screen 405, so that it can accelerate the screening of the rubber polymer fine powder on the screen 405, after that, the electromagnetic coil 402 is de-energized, under the continuous vibration of the vibration motor 407, the magnetic domain structure in the screen 405 changes, the ordered arrangement of magnetic domains is disturbed, thereby gradually weakening the magnetism, so that the adsorbed steel wire fragments can fall into the corresponding material collecting box 107, the materials collected by the two material collecting boxes 107 are different,One is used to collect steel wire scraps, and the other is used to collect the screened rubber polymer fine powder. By starting the reversible motor 108, the output shaft is rotated, thereby driving the driving gear 109 to rotate. Since the driving gear 109 and the gear row 110 are mutually engaged, the gear row 110 can realize reciprocating motion. The gear row 110 is installed at the bottom of the two material collecting boxes 107. By changing the position of the gear row 110, the material collecting boxes 107 are moved to the corresponding position. When collecting steel wire scraps, the corresponding material collecting box 107 is moved to below the screen 405. When collecting the rubber polymer fine powder, the other material collecting box 107 is moved to below the screen 405. At this time, the limiting frame 106 is sleeved outside the limiting rod 104 to slide, thereby limiting the two material collecting boxes 107.

[0045] The wiring diagram of the reversible motor 108, the refrigerating machine 304, the air pump 305, the electromagnetic coil 402 and the vibration motor 407 in the present application belongs to the common knowledge in the art, and the working principle is a known technology. The model is selected according to the actual use. Therefore, the control mode and the wiring arrangement of the reversible motor 108, the refrigerating machine 304, the air pump 305, the electromagnetic coil 402 and the vibration motor 407 are not explained in detail.

[0046] Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or replace some technical features equivalently, as long as the modification, equivalent replacement or improvement is within the spirit and principle of the present application.

Claims

1. A tire rubber polymer pulverizing device, comprising a collecting component (1), a pulverizing component (2), and a conveying component (3), characterized in that: The pulverizing component (2) includes a fixed grinding disc (201), a movable grinding disc (225) is provided inside the fixed grinding disc (201), a low-temperature chamber (217) is provided inside the movable grinding disc (225), and the low-temperature chamber (217) is filled with ultra-low temperature gas, which is used to make the tire rubber polymer being pulverized brittle at low temperature. The bottom of the fixed grinding disc (201) is provided with an installation port (202), and a strainer (203) is fixedly connected between the inner walls of the installation port (202), and the strainer (203) is used to screen out the pulverized rubber polymer. The inner wall of the low-temperature chamber (217) is fixedly connected with a vent pipe (219), and one end of the vent pipe (219) is fixedly connected with an air injection pipe (220). The outer surface of the movable grinding disc (225) is provided with a threaded groove (218) corresponding to the vent pipe (219). The conveying assembly (3) includes a circulation pipe (301). Multiple conveying pipes (302) are fixedly connected between the inner wall of the circulation pipe (301) and the outer surface of the fixed grinding disc (201). The circulation pipe (301) and the conveying pipes (302) are used to convey cryogenic gas. Each conveying pipe (302) has multiple jet nozzles (309) on its inner wall, and these nozzles (309) are funnel-shaped, used to inject cryogenic gas into the interior of the fixed grinding disc (201). A screening assembly (4) is fixedly connected to the outer surface of the fixed grinding disc (201). The screening assembly (4) includes two mounting brackets (401), which are fixedly installed on both sides of the fixed grinding disc (201). On one side, a support plate (406) is fixedly connected to the bottom of one of the mounting brackets (401), and a vibration motor (407) is provided at the bottom of the support plate (406). An electromagnetic coil (402) is provided at the bottom of the other mounting bracket (401). Multiple connecting springs (404) are fixedly connected to the front and rear surfaces of the fixed grinding disc (201). A fixed frame (403) is fixedly connected between the bottom ends of the multiple connecting springs (404). A screen (405) is fixedly connected between the inner walls of the fixed frame (403), and the screen (405) is used to separate steel wire debris. The vibration motor (407) and the electromagnetic coil (402) are both in contact with the fixed frame (403).

2. The tire rubber polymer pulverizing equipment according to claim 1, characterized in that: The top of the fixed grinding disc (201) is fixedly connected to a feed hopper (204). Multiple fixed grinding strips (205) are fixedly connected to the inner wall of the fixed grinding disc (201) along the circumferential direction. A limiting block (211) is fixedly connected to one side of the inner wall of the fixed grinding disc (201). The moving grinding disc (225) is rotatably sleeved on the outside of the limiting block (211). A rotating groove (214) is opened on one side of the moving grinding disc (225). A rotating sleeve (212) is fixedly connected to the inner wall of the other side of the moving grinding disc (225). The outer surface of the rotating sleeve (212) is rotatably connected to the inner wall of the rotating groove (214). A rotating hole (206) is opened on one side of the fixed grinding disc (201). A positioning rotating block (210) is fixedly connected to one side of the fixed grinding disc (201).

3. The tire rubber polymer pulverizing equipment according to claim 2, characterized in that: The center of the moving grinding disc (225) rotates on the inner wall of the rotating hole (206). A driven rotating wheel (207) is fixedly connected to the outer surface of the center of the moving grinding disc (225). An active rotating wheel (209) is rotatably sleeved on the outer surface of the positioning rotating block (210). A connecting belt (208) is movably connected between the outer surface of the driven rotating wheel (207) and the outer surface of the active rotating wheel (209). A support plate is fixedly connected to one side of the outer surface of the fixed grinding disc (201). A drive motor (226) is provided on the top of the support plate. Multiple reinforcing rods (216) are fixedly connected to both sides of the inner wall of the low temperature chamber (217). A central support block (215) is fixedly connected between one end of the multiple reinforcing rods (216).

4. The tire rubber polymer pulverizing equipment according to claim 3, characterized in that: A refrigeration unit (304) is provided on one side of the fixed grinding disc (201), and an air pump (305) is provided on the top of the support plate. The input end of the air pump (305) is fixedly connected to an air inlet pipe (306), and one end of the air inlet pipe (306) is fixedly installed on the connection end of the refrigeration unit (304). The output end of the air pump (305) is fixedly connected to an air outlet pipe (308). An installation nozzle (307) is fixedly connected to the outer surface of the circulation pipe (301). One end of the installation nozzle (307) is fixedly connected to one end of the air outlet pipe (308). A reinforcing frame (303) is fixedly connected between the outer surface of the fixed grinding disc (201) and the outer surface of the circulation pipe (301). Multiple moving grinding strips (213) are fixedly connected along the circumferential direction on the outer surface of the moving grinding disc (225).

5. The tire rubber polymer pulverizing equipment according to claim 4, characterized in that: The inner wall of the threaded groove (218) is threaded with a sealing threaded plug (223). The bottom of the sealing threaded plug (223) is provided with a slot (221). The vent pipe (219) is movably disposed inside the slot (221). The top surface of the slot (221) is provided with a sleeve (224). The air injection pipe (220) is movably disposed inside the sleeve (224). The top surface of the sleeve (224) is fixedly connected with a locking rod (222). The locking rod (222) is inserted into the inner wall of the air injection pipe (220).

6. The tire rubber polymer pulverizing equipment according to claim 5, characterized in that: The collecting component (1) includes a supporting chassis (101), with a support foot (102) fixedly connected to the bottom of the supporting chassis (101). A fixing plate (105) is fixedly connected to the top of the supporting chassis (101) near both sides. The tops of the two fixing plates (105) are respectively fixedly connected to the two sides of the fixed grinding disc (201). Two support plates (103) are fixedly connected to the top of the supporting chassis (101) near the other two side edges. A limit rod (104) is fixedly connected between the outer surfaces of each pair of opposite support plates (103). Multiple limit frames (106) are slidably connected to the outer surface of each limit rod (104). Two collection boxes (107) are symmetrically fixed between the tops of the multiple limit frames (106).

7. The tire rubber polymer pulverizing equipment according to claim 6, characterized in that: A toothed rack (110) is fixedly connected between the bottoms of the two collection boxes (107). A forward and reverse motor (108) is provided on the top of the bearing chassis (101). A drive gear (109) is fixedly connected to the output shaft of the forward and reverse motor (108). The outer surface of the drive gear (109) meshes with the bottom of the toothed rack (110).

8. A pulverizing method for a tire rubber polymer pulverizing device, characterized in that, The tire rubber polymer pulverizing equipment according to claim 7 includes the following steps: S1. By pouring the crushed tire rubber polymer fragments into the feed hopper (204), the drive motor (226) is started, and its output shaft drives the active rotating wheel (209) to rotate. Under the connection of the connecting belt (208), the driven rotating wheel (207) drives the moving grinding disc (225) to rotate. The crushed tire rubber polymer enters the gap between the fixed grinding disc (201) and the moving grinding disc (225) from the feed hopper (204). Under the mutual grinding of the fixed grinding strip (205) and the moving grinding strip (213), the tire rubber polymer will be ground into powder. The fine powder that is successfully crushed falls from the sieve (203), and the fragments that are not completely crushed will remain in place to continue grinding. S2. Before grinding begins, cryogenic gas is injected into the air injection pipe (220), and then the sealing thread plug (223) is inserted into the thread groove (218). The clamp (222) is inserted into the air injection pipe (220). The low temperature inside the cryogenic chamber (217) is transferred to the tire rubber polymer fragments being crushed, causing the tire rubber polymer to vitrify. The brittle fragments are easier to grind into fine powder. By starting the refrigerator (304) and the air pump (305), the air pump (305) delivers the cold air produced by the refrigerator (304) through the air inlet pipe (306) and the air outlet pipe (308) to the circulation pipe (301), and guides it to the interior of the fixed grinding disc (201) through multiple delivery pipes (302) and the jet nozzle (309). S3. By energizing the electromagnetic coil (402), a strong magnetic field is generated around it. The screen (405) made of iron is placed in the strong magnetic field. The ferromagnetic material in the screen (405) will be magnetized. Under the magnetic adsorption, the magnetic screen (405) will adsorb the steel wire debris, while the rubber polymer powder will fall through the screen (405). By starting the vibration motor (407), it will vibrate and transmit the vibration to the fixed frame (403) and the screen (405), which will accelerate the screening of the rubber polymer powder on the screen (405). After that, the electromagnetic coil (402) is de-energized. Under the continuous vibration of the vibration motor (407), the adsorbed steel wire debris will fall into the corresponding collection box (107). S4. By starting the forward and reverse motor (108), its output shaft rotates, thereby driving the drive gear (109) to rotate. Since the drive gear (109) and the gear rack (110) mesh with each other, the gear rack (110) can reciprocate. The gear rack (110) is installed at the bottom of the two collection boxes (107). By changing the position of the gear rack (110), the collection box (107) is moved to the corresponding position. When collecting steel wire scraps, the corresponding collection box (107) is moved below the screen (405). When collecting rubber polymer powder, the other collection box (107) is moved below the screen (405).

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