50 results about "Tire recycling" patented technology

The invention relates to the field of rubber recovery, in particular to an automobile tire recovery processing device and method.The automobile tire recovery processing device comprises a rotating part, a plurality of leakage grooves are formed in the rotating part, a plurality of feeding plates are fixedly connected to the inner wall of the rotating part, a crushing box is arranged in the rotating part, a material guide plate is fixedly connected to the crushing box, and the material guide plate is obliquely arranged; a crushing mechanism is arranged in the crushing box, a driving mechanism is connected below the rotating part, a plurality of through grooves are formed in the surface of the guide plate, the crushing mechanism comprises two crushing rollers, the two crushing rollers are rotationally connected in the crushing box, staggered teeth are arranged on the two crushing rollers, and a plurality of meshing teeth are arranged on the surfaces of the two crushing rollers; the tops of the multiple meshing teeth on the two crushing rollers face oppositely, and the tires can be circularly crushed and screened.

The utility model relates to the technical field of crushing and grinding, specifically to a kind of crushing and grinding device for waste rubber tire recycling and processing, including the box of one end open one end closed, first through-hole is set up in the box, the first through-hole is set up in the box, two first sliding slots are set up, the screening assembly includes two sliding strips, sieve plate, extension plate, collection plate and two first limiting plates, extension plate slides, because sieve plate is fixed on sliding strip, make sieve plate slide along first sliding slot, by extension plate quick shaking, realize vibration, because sieve plate is inclined design, make unqualified rubber powder move to the other side, make rubber powder slowly from collection plate into secondary grinding, to unqualified rubber powder secondary grinding, solve the problem that filter is damaged due to serious blockage, prevent large rubber into subsequent production link, make final product appear more balanced, improve the quality and performance of product.

This invention discloses a special reinforcing steel fiber for all-solid waste concrete and its modification method, belonging to the field of building materials technology. The reinforcing steel fiber uses recycled steel fiber from automobile tires as the core raw material. Through a graded process of raw material pretreatment, dopamine coating, and ettringite deposition modification, a chemical bonding layer and a microstructure reinforcing layer are formed on the fiber surface, significantly improving its interfacial bonding performance with the all-solid waste concrete matrix. The suitable all-solid waste concrete system consists of granulated blast furnace slag powder, industrial by-product gypsum, alkaline industrial by-products, and iron tailings sand, achieving 100% solid waste utilization. When the modified steel fiber content is 1-2%, the 28-day compressive strength of the concrete increases by over 10%, and the flexural strength increases by over 100%, combining environmental friendliness and high performance, providing an innovative solution for solid waste resource utilization and building material upgrading.

The application relates to the technical field of waste tire treatment, and discloses a waste tire recycling treatment equipment, which comprises a fixed base, a disc for placing waste tires is rotationally arranged on the fixed base, a positioning frame capable of ascending and descending is arranged above the disc, a cutting knife for cutting the waste tires is rotationally arranged on the outer side of the positioning frame; a positioning block is fixed to the outer surface of the disc, a rotating shaft is rotationally arranged on the positioning block, a rotating plate is fixed to the circumference of the rotating shaft, an elastic movable rod is arranged in the disc, a spherical ball is fixed to the end of the movable rod, and a fixed disc is arranged in the disc. When the waste tires are cut, the rotating plate is rotated, the side ring can be lifted outward, the side ring at the cutting position can be kept at a certain angle with the tread, the cutting is facilitated, and the side ring and the tread can be separated more sufficiently.

The invention discloses waste rubber tire recycling equipment, which belongs to the technical field of recycling equipment and comprises a supporting device, a cutting device, a wire drawing device and a crushing device. The cutting device is installed on the machine frame, the wire drawing device is arranged above the cutting device, the crushing device is installed at the bottom of the cutting device, after waste rubber tires are cut off through the cutting device, wire drawing is conducted through the wire drawing device, crushing operation is conducted through the crushing device, and recycling treatment work is completed. Through the arrangement of the cutting-off device, the steel wires are pulled out more easily, the deformation degree is low, winding is not prone to occurring, the steel wires are taken down more easily even if being wound, production is more time-saving and labor-saving, and the tire recycling work efficiency is improved.

The invention relates to the technical field of old tire recovery, in particular to a rubber tire waste treatment device with a collection function, comprising a shell and a support frame mounted on the shell; the device further comprises a supporting table. The inner right part of the shell is connected with a supporting table; the supporting table is connected with a stripping assembly used for stripping opening ring rubber. According to the rubber tire waste treatment device with the collecting function obtained through the design, a plurality of opening rings can be stacked in advance through the inner limiting cylinder and the outer limiting cylinder, and then each opening ring is sequentially pulled to the position between the first pressing roller and the second pressing roller through cooperation of the U-shaped plate and the L-shaped plate, so that feeding and discharging do not need to be manually controlled by an operator, and the working efficiency is improved. Compared with the prior art which depends on manual feeding, monitoring and discharging of operators, the device has the advantages that the working intensity of the operators is relieved, a large amount of time is saved, and the treatment efficiency of the opening ring is improved.

The utility model discloses an automobile scrapped tire recycling and disassembling device, belongs to the technical field of scrapped tire recycling, solves the problem that hubs with different sizes are inconvenient to position, and comprises a base, the outer surface of the base is rotatably connected with a clamping device, and the outer surface of the base is slidably connected with a cutting mechanism. A control panel is fixedly connected to the outer surface of the base, and the clamping device comprises a rotating frame rotationally connected to the outer surface of the base. According to the device, a hub can be placed on the upper surface of the rotating frame, then a servo motor is started, an output shaft of the servo motor drives a driving bevel gear to rotate, the driving bevel gear rotates to drive a driven bevel gear to rotate, the driven bevel gear rotates in the opposite direction, the driven bevel gear rotates to drive a threaded rod to rotate, and the threaded rod rotates to drive the hub to rotate. And the threaded rod rotates to drive the two sets of connecting blocks to move in the opposite directions, the inner walls of the hubs can be attached conveniently, and then the hubs of different sizes can be fixed conveniently.

The present application provides are a tire recycling method, a storage medium, an electronic device, and a computer product program. The tire recycling method comprises: acquiring and pre-treating waste tires to obtain waste to be recycled; adding a first set amount of the waste material to be recycled, a first set concentration of a solvent, a second set amount of a functional compound, and a third set amount of a catalyst to a batch reaction kettle and performing a chemical reaction under first set condition to obtain a first product system; and carrying out post-treatment on the first product system to obtain a product, wherein the first set condition comprises: a reaction time of 1 to 6 hours and a reaction temperature of 80ºC to 120ºC, so as to solve the problem in the prior art that it is difficult to use vulcanized rubber as a raw material for a high-performance rubber product due to the breakage of rubber molecular chains and the expansion of the molecular weight distribution after desulfurization.

The invention discloses a steel wire with a recycled material, a manufacturing method of the steel wire and a tire, relates to the technical field of metal material processing, and aims to solve the problem that in the prior art, the copper content of a tire recycled steel wire is increased, so that the steel wire locally has a hot brittleness trend and risk. The manufacturing method comprises the steps of: manufacturing a steel material from a raw material comprising at least 10% of tire recovery steel wires; reducing the diameter of the steel to obtain a to-be-treated steel wire with a first preset size; the steel wire to be treated is subjected to pretreatment, and the steel wire to be treated is subjected to one of the following pretreatment modes: the steel wire to be treated is subjected to heat treatment; or carrying out heat treatment and Ni plating treatment on the steel wire to be treated; wherein the heat treatment temperature is 300 DEG C or above; and the pretreated reusable steel wire is obtained. The method is suitable for reprocessing steel wires with recycled materials, and waste steel wires generated in the tire recycling process are fully utilized.

The application relates to the technical field of tire recycling equipment, in particular to a polyester tire waste regeneration treatment equipment which comprises a base, a pair of support frames are installed on the upper end of the base, a treatment box is installed between the support frames, a crushing assembly is arranged in the treatment box, a screening assembly is installed on the circumferential surface of the treatment box, a screening cylinder is rotationally connected to the circumferential surface of the treatment box, a plurality of sliding seats are equidistantly installed on the circumferential surface of the screening cylinder, sliding frames are slidably connected in the sliding seats, connecting sleeves are fixedly connected to the surfaces of the sliding frames and located outside the screening cylinder, compression springs are installed between the sliding seats and the sliding frames, connecting frames are installed at the lower ends of the support frames, an inclined groove is formed in the surface of the connecting frame, and a stress rod is slidably connected in the inclined groove. Through the action of the screening assembly, the polyester tire waste can be stably and efficiently screened, meanwhile, the relatively large tire waste can be re-transported into the treatment box for crushing again, and the crushing effect of the tire waste is guaranteed.

The present application relates to the field of asphalt preparation, more particularly to a preparation process of elastomer modified asphalt. The process comprises the following steps: step one: preparing melted asphalt; step two: preparing rubber threads processed from tires and cutting them into fixed lengths; step three: adding the fixed-length rubber threads into the melted asphalt; step four: thoroughly mixing the asphalt and the rubber threads and discharging. The preparation process of elastomer modified asphalt also uses a preparation device of elastomer modified asphalt, which comprises a mixing barrel, a moving assembly walking along the upper side of the mixing barrel, a feeding assembly for feeding rubber threads arranged on the moving assembly, and a cutting assembly for cutting rubber threads arranged on the moving assembly. The device has the advantage of being able to cut rubber threads recycled from tires and add them into asphalt preparation to enhance the elasticity of the asphalt.

This application relates to the field of tire recycling and processing technology, and in particular to a process control method and system for producing light oil from waste tires. The method includes: acquiring raw material characteristic data of waste tires; determining a set of pretreatment parameters based on the raw material characteristic data; controlling the processing equipment to process the waste tires according to the pretreatment parameter set, and acquiring real-time material information after processing; analyzing the real-time material information to obtain material characteristics, and determining the dynamic pyrolysis temperature and dynamic reaction atmosphere based on the material characteristics; and controlling the processing equipment to upgrade the material according to the dynamic pyrolysis temperature and dynamic reaction atmosphere to obtain light oil that meets standards. Dynamically adjusting the pyrolysis temperature and reaction atmosphere effectively controls sulfur migration and metal catalytic activity, improving the yield and quality of light oil and reducing the generation of harmful substances. Through refining, light oil that meets standards is obtained, increasing commercial value while reducing environmental pollution.

The utility model provides waste gas treatment equipment for waste tire recovery, and belongs to the technical field of waste tire recovery. Comprising a shell, and a recycling assembly and a filtering assembly which are mounted on the shell. Harmful gas is sucked into the shell through the fan, then filtered through the filter plate and discharged, after the filtering operation is completed, the button is pressed, the movable rod and the fixed rod are moved towards the position of the fixed pin through the button, the position of the annular groove coincides with the ball, the ball can roll into the annular groove, then the button is loosened, and then the movable rod and the fixed rod are moved to the position of the fixed pin. A button, a movable rod and a fixed rod are pushed to the position far away from a fixed frame through a spring, balls are moved to the position far away from fixed pins, after the filter plate is cleaned, the filter plate can be installed on the fixed frame by repeating the steps, waste gas can be filtered conveniently when the waste gas is generated through waste tire recovery, and the waste tire recovery efficiency is improved. And the influence on surrounding workers is reduced.

Device and method for filtering on wire length a wire stream The invention provides a device (200, 300) for filtering on wire length a wire stream (900) comprising wires recycled from tires. The device (200, 300) comprises at least one concave surface (220, 320) extending along a longitudinal direction (L). The device (200, 300) is arranged for receiving the wire stream (900) on the at least one concave surface (220, 320), and for transporting the wire stream (900) on the at least one concave surface (220, 320) along the longitudinal direction (L) from a first end (211, 311) to a second end (212, 312). The device (200, 300) comprises at least one filter opening (230, 330) in the at least one concave surface (320) or at the second end (212) of the at least one concave surface (220). The at least one filter opening (230, 330) has a predetermined size for filtering wires up to a predetermined length out of the wire stream (900) through the at least one filter opening (230, 330) when the wire stream (900) is transported on the at least one concave surface (220, 320).

The invention relates to the field of recycling devices, in particular to an environment-friendly rubber tire recycling device which comprises a machine body and a feeding hopper fixedly connected to the upper side of the machine body. A feed opening is formed below the machine body; a crushing assembly used for crushing tires is arranged on the inner side of the feeding hopper. The driving assembly is arranged on the upper side of the machine body; the driving assembly is connected with a screen drum for screening rubber blocks, and a plurality of screen holes which are annularly distributed at equal intervals are formed in the screen drum; the feeding hopper is located on the inner side of the screen drum; a plurality of baffle plates are fixedly connected to the inner side of the screen drum; each blocking plate is fixedly connected with a plurality of arc-shaped rods, and the blocking plates and the arc-shaped rods are used for blocking rubber blocks. According to the rubber crushing device, through the arrangement of the screen drum, the baffle plate and the arc-shaped rod, large rubber blocks which do not reach the grain size are repeatedly lifted and backfilled into the feeding hopper and enter the crushing roller again to be crushed for the second time or multiple times, and it is ensured that the rubber blocks are fully crushed into fine and uniform particles.

The invention relates to the field of waste tire recovery, in particular to a waste tire crusher which comprises a crusher shell, two crushing rollers are installed in the crusher shell, feeding ports are formed in the crushing rollers, a funnel cavity is formed above the feeding ports, the width of the funnel cavity is larger than the overall thickness of a conventional tire, and the crushing rollers are arranged in the funnel cavity. The crusher shell is provided with two symmetrically-arranged containing grooves, the containing grooves are located in the two sides of the feeding port, and baffles are slidably connected into the containing grooves. According to the device, the movable end of the electric telescopic rod moves towards one side, two baffles are pushed to be close to each other to close a feeding port, a long plate pushes a cutting blade to cut off the part, with a steel wire ring, of the side edge of a waste rubber tire, and meanwhile cut-off rubber with steel wires is recycled; rubber with steel wires is prevented from falling into the crushing device, so that crushed tire particles are more uniform, the steel wires are prevented from entering the crusher, and the service life of the crusher is prolonged.

The invention relates to the technical field of waste tire treatment, and discloses waste tire recovery treatment equipment which comprises a fixed base, a disc used for containing waste tires is rotationally arranged on the fixed base, and a positioning frame capable of ascending and descending is arranged above the disc. A cutting knife used for cutting the waste tires is rotationally arranged on the outer side of the positioning frame. A positioning block is fixed to the outer surface of the disc, a rotating shaft is rotationally arranged on the positioning block, a rotating plate is fixed to the circumference of the rotating shaft, a movable rod is elastically arranged in the disc, a ball is fixed to the end of the movable rod, and a fixed disc is arranged in the disc. According to the technical scheme, when a waste tire is cut, a side ring can be supported towards the outer side through rotation of the rotating plate, so that a certain included angle can be kept between the side ring at the cutting position and a tire tread, cutting is facilitated, and the side ring and the tire tread are separated more sufficiently.

The utility model relates to the field of signboards, and discloses a movable signboard which comprises a movable base, a first installation part, an installation cylinder, a supporting leg, a signboard body and a limiting assembly. The limiting assembly comprises a sleeve, a limiting rod and an operation block. The waste tires are recycled and used as the mounting base of the supporting legs and the signboard, on one hand, stable and reliable supporting can be provided for the waste tires, meanwhile, the mobility of the signboard is improved, on the other hand, recycling of the waste tires is achieved, and the production cost of the waste tire recycling device is saved; by means of the arranged limiting assembly, the supporting leg can be limited and fixed or released, detachable connection between the supporting leg and the sleeve is achieved, the supporting leg and the signboard can be detached from the movable base when the signboard is moved, the convenience of the supporting leg and the signboard in the moving process is further improved, and the practicability of the signboard is improved. Manpower and material resources are saved, and meanwhile the situation that the signboard is damaged can be effectively avoided.

The invention discloses a working method of a scrapped shared bicycle tire recycling and disassembling working platform. The working platform comprises a working platform body, and supporting mechanisms are arranged on the two sides of the top end of the working platform body; the I-shaped frame is arranged in the middle of the top end of the workbench and used in cooperation with the supporting mechanism. The vertical plate is fixedly connected to the rear side of the workbench, a fixing plate is arranged on the front face of the vertical plate in a liftable mode, and an adjusting mechanism is arranged at the upper end of the fixing plate; the clamping mechanisms are arranged below the two sides of the fixing plate and used in cooperation with the supporting mechanisms. Through cooperative use of the supporting mechanism and the clamping mechanism, multi-point cooperative fixation of the inner side, the outer side and the upper end of a tire is achieved, rolling and deflection of the tire in the disassembling process are effectively prevented, and the problem of poor operation safety is solved.

The invention relates to the technical field of solid waste treatment, and discloses efficient crushing treatment equipment for automobile tire recycling, the efficient crushing treatment equipment comprises a crusher, the top end of the crusher is provided with a feeding hopper, the outer wall of the crusher is provided with a driving motor, and the output end of the driving motor is connected with a crushing roller; an opening and closing assembly is embedded in the pulverizer and comprises a pushing plate, pulverizing teeth are connected to the inner side of the pushing plate, and positioning rods are connected to the two ends of a pulverizing roller. According to the efficient crushing treatment equipment for recycling the automobile tires, the distance between the crushing rollers is dynamically adjusted through the V-shaped adjusting arms and the telescopic rods, the equipment adapts to different tire placement angles, material blocking is avoided, the crushing rollers are intermittently opened and closed to be matched with rapid closing design, extrusion strength is provided, the tires are prevented from escaping, and continuity is guaranteed; and substandard materials are subjected to backflow and secondary crushing, manual transfer and cost are reduced, and the device is suitable for a large-scale recovery scene and has high efficiency, practicability and economical efficiency.

This invention relates to the field of rubber recycling technology, specifically to a rubber tire recycling device and method, comprising a feeding assembly, a crushing assembly, and a separating assembly. The feeding assembly includes a base, a processing shell, a feeding conveyor belt, and a feeding guide mechanism; the crushing assembly includes a primary crushing roller and a secondary crushing roller; the separating assembly includes an inclined feeding channel, a first storage tank, a second storage tank, an air duct, and a blowing structure. It achieves efficient separation of rubber and steel wire through air separation, possessing advantages such as simple structure, high separation efficiency, low energy consumption, and strong adaptability. It can effectively solve the separation problem in waste tire recycling and processing, realizing resource recycling. The device has a processing capacity of 2-10 tons / hour and is suitable for processing tires of various specifications, making it an ideal equipment for the resource utilization of waste tires.

The invention relates to a crushing device for waste tire recycling, and relates to the technical field of waste tire recycling treatment.The crushing device comprises a machine base, a conveying mechanism is installed in the machine base, a first base body, a crushing box and a second base body are sequentially fixed to the upper portion of the machine base from left to right, and a hydraulic mechanism is fixedly installed in a groove in the upper end of the second base body; a base is fixed to the right side of the crushing box, and a visual detection mechanism is installed at the upper end of the base. The tire diameter is identified through a visual detection mechanism, a hydraulic mechanism is linked to adjust the distance between baffles and the inclination angle of an inclined plate, an adjusting belt is driven to rotate forwards and backwards, a transverse tire is turned over to be in a vertical posture, smooth feeding is ensured, crushing teeth periodically ascend and descend along an arc-shaped ejector block along with rotating cylinders, downward pressure is applied to the tire, and the tire is guided to rapidly enter the position between the rotating cylinders. For large-diameter tires, the hydraulic mechanism synchronously pushes the sliding rod to drive the ejector block to move upwards, so that the crushing teeth are lifted, adaptive adjustment is achieved, and the crushing efficiency is effectively improved.

The present disclosure assists in managing information acquired at each stage of tire recycling. An information processing apparatus (1) capable of communicating with a network includes a controller. The controller executes operations including receiving first tire-related information about a tire from a first communication terminal (2) associated with a first stage in recycling of tires, receiving second tire-related information about the tire from a second communication terminal (2) associated with a second stage in the recycling, storing the first tire-related information and the second tire-related information in association with identification information for the tire, and transmitting, upon receiving the identification information from a user terminal (3), the first tire-related information and the second tire-related information to the user terminal (3).

The utility model relates to the technical field of tire recovery, in particular to a waste tire rubber recovery device which comprises a bottom plate, a fixing table, a first motor, a first bevel gear, a second bevel gear, a screw rod, a sliding rod, a supporting rod and other parts. Second bevel gears drive screws to rotate, the four screws rotate to drive corresponding sliding rods to slide in second through holes, the sliding rods drive supporting rods to support the outer surface of a tire, the first motor is closed after the supporting rods move to a proper position, and the tire is fixed. The workload of workers can be reduced, and potential safety hazards caused when the workers fix tires with hands are reduced.

A method for recycling a rubber-based tyre includes thermally treating rubber-based granulates coming from the tyre into a first device, by moving the granulates while heating the granulates, to decompose the granulates and to collect solid residues from the thermal treatment of the granulates at a first outlet of the first device and gaseous subproducts from the thermal treatment a second outlet of the first device, a first temperature in a first enclosure of the first device being between 350 and 500 degrees Celsius, and thermally treating the solid residues, by moving the solid residues inside a second device while heating the solid residues at a second temperature that is greater than the first temperature, to clean the solid residues. The second temperature in a second enclosure of the second device being at least 500 degrees Celsius.

The utility model belongs to waste and old tire recycling technical field, concretely relates to a kind of waste and old tire crushing recycling device, including base, and the initial breaking execution mechanism is arranged on the top of base, and the initial breaking execution mechanism side is provided with scattering mechanism. Through the scattering mechanism, the second rotating shaft is rotated and the transport belt is moved by starting the speed reducer motor, the tire after crushing is moved, the dust extraction assembly is started, the tire after crushing on the transport belt is dusted, and by the second guide plate, into scattering cylinder, by resistance material component cooperation, power motor is started to drive rotating scattering component to rotate, the tire after crushing is scattered by rotating scattering component in rotation, the tire after scattering flows into recycling box for recycling after a certain time, scattering effect is guaranteed after recycling crushing, dust extraction after tire crushing is increased, scattering recycling efficiency is improved, convenient to use, and practicality is strong.

This utility model relates to the field of waste tire recycling and processing technology, specifically to a waste tire dust removal and cleaning device. The technical problem it aims to solve is to overcome the shortcomings of existing cleaning and dust removal technologies. This is mainly achieved through the following technical solution: A waste tire dust removal and cleaning device includes a water washing device, which includes a washing drum and a washing tank. It also includes a pre-cleaning device and a vibration device, located at both ends of the water washing device. The pre-cleaning device includes a blowing structure and a dust removal structure. The blowing structure includes a lifting component, a conveying component, and an air blowing assembly. The dust removal structure includes a material dropping assembly and a material feeding assembly. The vibration device includes a vibrating screen, a vibrating frame, and a vibrating drive component. The pre-cleaning device blows and removes dust and separates mud, sand, and gravel before cleaning the waste tires. It has high adaptability and does not require consideration of tire tread conditions. It is easy to operate and has a good dust removal effect. The two dust removal processes ensure the cleanliness of the waste tires.

The invention discloses a preparation method of rubber powder based on waste tire recovery in the field of solid waste resource utilization, and the method comprises the following steps: firstly, carrying out coarse crushing on waste tires, separating steel wires and fibers, and carrying out liquid nitrogen freeze crushing and grading to obtain fine rubber powder; drying the rubber powder, and activating the surface through low-temperature plasma treatment; carrying out surface spraying modification on the activated rubber powder by adopting an ethanol water solution of a special epoxidized cardanol siloxane coupling agent, and completing a high-temperature grafting reaction in a kneading machine; finally, obtaining a modified rubber powder finished product through Soxhlet extraction and vacuum drying. The coupling agent is prepared from an anacardol epoxidation product and an epoxy silane intermediate through a catalytic reaction, and has an organic-inorganic hybrid structure. Through combination of physical activation and chemical grafting, the interfacial compatibility of the rubber powder and a matrix is remarkably improved, the obtained product can be used in the field of polymer composite materials, and high-valued recycling of waste tires is achieved.

The invention discloses an intelligent tire recovery detection and high-value recovery device which comprises a base, a rotating mechanism, a clamping mechanism, a laser scanning device and a tire tread detection unit. The rotating mechanism drives the laser scanning device to do circular motion around the tire and perform three-dimensional contour scanning to generate a track signal; the tread detection unit comprises a light source, an imaging unit and a detection unit and is used for performing synchronous image acquisition on the surface of the tire under the track guide of the laser scanning device. According to the invention, through the synergistic effect of laser track scanning and defect modulation detection, the quality uncertainty of the recycled tire is eliminated; according to the tire recycling system, the recycling efficiency is remarkably improved by means of automatic structural design, meanwhile, the process is optimized based on the tire full-life-cycle management concept so that energy consumption can be reduced, the low-carbon and environment-friendly concept can be achieved, and key technical support is provided for efficient, high-valued and low-carbon upgrading of the tire recycling industry.

The application provides a method for preparing a non-pneumatic tire by using waste tires, and comprises the following steps: waste tire recycling, coarse rubber powder pretreatment and non-pneumatic tire preparation. The non-pneumatic tire prepared by the method can be prepared by using waste tires. The waste tires are pretreated to obtain coarse rubber powder containing short fibers, and the non-pneumatic tire is prepared by using the coarse rubber powder. The process is green and environmentally friendly, and the product quality is good.