Tire recovery method, storage medium, electronic device, and computer product program
By pretreatment and chemical reaction of waste tires, combined with the use of functional compounds and catalysts, the problem of degradation of rubber quality after desulfurization is solved, efficient and high-quality tire recycling is achieved, and the application range of rubber is broadened.
Patent Information
- Application Number
- CN202411597689.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-02-25
AI Technical Summary
In the prior art, the desulfurized rubber has a decreasing quality due to molecular chain fracture and expansion of molecular weight distribution, making it difficult to be used as a raw material for high-performance rubber products.
By obtaining the used tires for pretreatment, a specific amount of solvent, functional compounds and catalyst is added, chemical reactions are carried out in a batch reactor, reaction time and temperature are controlled, and post-treatment is carried out to obtain high-quality recovered rubber.
It improves the efficiency and purity of waste tire recycling, improves the performance of recycled rubber, and gives it a wider application prospect, especially in the fields of high-performance tire manufacturing and rubber product modification.
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Figure CN119505363A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of tire recycling, and in particular to a tire recycling method, a storage medium, an electronic device and a computer product program. Background Art
[0002] One of the core processes in the tire manufacturing industry is vulcanization, which chemically cross-links the molecular chains of elastomers to build a stable three-dimensional network structure, thus giving the tire excellent mechanical properties and durability. However, the irreversibility of the vulcanization process also means that the vulcanized rubber in waste tires cannot be directly reprocessed by melting or dissolving, which constitutes the main technical obstacle to tire recycling. Since the invention of vulcanized rubber, the recycling and reuse of waste tires has been a problem that has plagued the rubber industry and has become a problem that needs to be solved urgently.
[0003] At present, waste tire recycling technology is mainly divided into three categories: rubber shredding, reuse and desulfurization. Among them, desulfurization technology aims to break the polysulfide, disulfide and monosulfide bonds in vulcanized rubber, while for rubber vulcanized with peroxide or resin, it is necessary to dismantle the stronger carbon-carbon bonds or other chemical bonds. However, the quality of desulfurized rubber often decreases due to the breakage of its molecular chain and the expansion of molecular weight distribution, which limits its application range and makes it difficult to be used as a raw material for high-performance rubber products. Summary of the invention
[0004] The main purpose of the present invention is to provide a tire recycling method, storage medium, electronic device and computer product program to solve the problem in the prior art that the rubber after devulcanization is difficult to be used as a raw material for high-performance rubber products due to the breakage of rubber molecular chains and the expansion of molecular weight distribution after devulcanization.
[0005] In order to achieve the above object, according to one aspect of the present invention, a tire recycling method is provided, comprising:
[0006] Obtaining waste tires and pre-processing them to obtain waste materials for recycling;
[0007] Adding a first set amount of waste material to be recycled, a first set concentration of solvent, a second set amount of functionalized compound, and a third set amount of catalyst into an intermittent reactor, and causing a chemical reaction under the first set conditions to obtain a first product system;
[0008] Post-processing the first product system to obtain a product;
[0009] The first setting conditions include: a reaction time of 1 to 6 hours and a reaction temperature of 80°C to 120°C.
[0010] Furthermore, the functional group at one end of the functionalized compound is any one of maleic anhydride, thiol, and amine, and the other end of the functionalized compound is a group having the function of dispersing fillers, anti-aging, or anti-sulfurization reaction.
[0011] Furthermore, the steps of obtaining waste tires and pre-processing them to obtain waste materials to be recycled include:
[0012] Crushing the waste tires to obtain initial waste materials to be recycled, wherein the initial waste materials to be recycled are in the form of blocks, flakes, powder or any one or more of the following;
[0013] Controlling the initial waste to be recycled to be dried at a set drying temperature to obtain the waste to be recycled;
[0014] The drying temperature was set at 100°C.
[0015] Furthermore, before the step of causing a chemical reaction under the first set condition, the method further includes:
[0016] Introducing an inert gas into the batch reactor to remove oxygen from the reactor;
[0017] Wherein, the inert gas is any one of nitrogen and carbon dioxide, or,
[0018] The inert gas is a mixture of nitrogen and carbon dioxide.
[0019] Further, the residence time of the inert gas in the batch reactor is controlled to be 30 min; and / or,
[0020] The number of times of introducing inert gas into the batch reactor is set to at least 3 times, and the time interval between two adjacent introductions of inert gas is 5 minutes to 30 minutes.
[0021] Further, the solvent is any one of alkanes, halogenated hydrocarbons and lipids; and / or,
[0022] The first set concentration is 5% to 40%.
[0023] Furthermore, the first product system is post-processed to obtain the product, comprising:
[0024] An alcohol substance is introduced into the batch reactor to mix with the first product system to obtain a product and an initial solvent;
[0025] The alcohol substance is any one of methanol, ethanol, propanol, butanol, pentanol and hexanol.
[0026] Furthermore, after the step of obtaining the product and the solvent, the following steps are further included:
[0027] The initial solvent is separated and distilled in sequence to obtain the solvent.
[0028] According to another aspect of the present invention, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the above tire recycling method when running.
[0029] According to another aspect of the present invention, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the tire recycling method through the computer program.
[0030] According to another aspect of the present invention, a computer program product is provided, comprising a computer program, and when the computer program is executed by a processor, the above tire recycling method is implemented.
[0031] By applying the technical solution of the present invention, the uniformity and reactivity of the raw materials are effectively improved through crushing and drying in the pretreatment stage of waste tires, making the subsequent chemical reaction more efficient. In the chemical reaction stage, by controlling the reaction time within the range of 1 to 6 hours and the reaction temperature within the range of 80°C to 120°C, the reaction process can be accurately regulated, the sufficiency and selectivity of the reaction can be guaranteed, the increase of by-products caused by overreaction can be avoided, and the low recovery efficiency caused by insufficient reaction can be avoided. The addition of functionalized compounds and catalysts not only promotes the decomposition of waste tire components, but also introduces new functional groups through functionalization reactions, improves the performance of rubber after devulcanization, and makes the recycled rubber have a wider application prospect, especially in fields with high performance requirements, such as high-performance tire manufacturing, rubber product modification, etc. In addition, by optimizing the reaction conditions and the use of chemical substances, the tire recycling method of the present invention can significantly reduce energy consumption and environmental pollution while achieving high-efficiency recycling, meet the requirements of sustainable development, and have significant economic and social benefits.
[0032] In summary, the tire recycling method provided by the present invention not only improves the efficiency and purity of waste tire recycling, but also improves the performance of recycled rubber and broadens its application range by introducing functionalized compounds and catalysts. BRIEF DESCRIPTION OF THE DRAWINGS
[0033] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0034] Figure 1 A hardware structure block diagram of a computer terminal of a tire recycling method according to an embodiment of the present application is shown;
[0035] Figure 2A flow chart of a tire recycling method according to an embodiment of the present application is shown. DETAILED DESCRIPTION
[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0037] One of the core processes in the tire manufacturing industry is vulcanization, which chemically cross-links the molecular chains of elastomers to build a stable three-dimensional network structure, thus giving the tire excellent mechanical properties and durability. However, the irreversibility of the vulcanization process also means that the vulcanized rubber in waste tires cannot be directly reprocessed by melting or dissolving, which constitutes the main technical obstacle to tire recycling. Since the invention of vulcanized rubber, the recycling and reuse of waste tires has been a problem that has plagued the rubber industry and has become a problem that needs to be solved urgently.
[0038] At present, waste tire recycling technology is mainly divided into three categories: rubber shredding, reuse and desulfurization. Among them, desulfurization technology aims to break the polysulfide, disulfide and monosulfide bonds in vulcanized rubber, while for rubber vulcanized with peroxide or resin, it is necessary to dismantle the stronger carbon-carbon bonds or other chemical bonds. However, the quality of desulfurized rubber often decreases due to the breakage of its molecular chain and the expansion of molecular weight distribution, which limits its application range and makes it difficult to be used as a raw material for high-performance rubber products.
[0039] The main purpose of the present invention is to provide a tire recycling method, storage medium, electronic device and computer product program to solve the problem in the prior art that the rubber after devulcanization is difficult to be used as a raw material for high-performance rubber products due to the breakage of rubber molecular chains and the expansion of molecular weight distribution after devulcanization.
[0040] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a mobile terminal or a similar computing device. Taking running on a computer terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a computer terminal of a tire recycling method according to an embodiment of the present application. Figure 1 As shown, the computer terminal may include one or N ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (Central Processing Unit, CPU) or a programmable logic device (Field Programmable Gate Array, FPGA)) and a memory 104 for storing data, wherein the above-mentioned computer terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1The structure shown is only for illustration and does not limit the structure of the above-mentioned computer terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.
[0041] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the adjustment method of the monitoring network point in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or N magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the computer terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
[0042] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of a computer terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.
[0043] First, the present application provides a tire recycling method, such as Figure 2 As shown, tire recycling methods include:
[0044] S1. Obtaining waste tires and pre-processing them to obtain waste materials to be recycled;
[0045] Specifically, the waste tires are crushed to obtain initial waste materials to be recycled, and the initial waste materials to be recycled are in the form of blocks, flakes, powder or any one or more of the following;
[0046] Controlling the initial waste to be recycled to be dried at a set drying temperature to obtain the waste to be recycled;
[0047] The drying temperature was set at 100°C.
[0048] Specifically, the obtained waste tires are crushed using a rubber crushing device to obtain initial waste materials to be recycled. The initial waste materials to be recycled are in the shape of any one or more of block, flake, and powder, and the size of the initial waste materials to be recycled is between 50 mesh and 200 mesh, which helps to increase the efficiency and uniformity of the chemical reaction in the subsequent processing process. The initial waste materials to be recycled are then dried at a drying temperature of 100°C to remove moisture in the initial waste materials to be recycled, thereby obtaining waste materials to be recycled.
[0049] Through the technical solution of the present invention, waste tires are no longer a burden on the environment, but become recyclable resources, which is of great significance for promoting circular economy and sustainable development.
[0050] S2, adding a first set amount of waste material to be recycled, a first set concentration of solvent, a second set amount of functionalized compound, and a third set amount of catalyst into a batch reactor, and introducing an inert gas into the batch reactor to remove oxygen in the reactor;
[0051] Wherein, the inert gas is any one of nitrogen and carbon dioxide, or the inert gas is a mixed gas of nitrogen and carbon dioxide, and a chemical reaction occurs under the first set condition to obtain a first product system;
[0052] Controlling the residence time of the inert gas in the batch reactor to 30 min; and / or,
[0053] The number of times the inert gas is introduced into the batch reactor is set to at least 3 times, and the time interval between each two adjacent introductions of the inert gas is 5 minutes to 30 minutes;
[0054] The solvent is any one of alkanes, halogenated hydrocarbons and esters; and / or the first set concentration is 5% to 40%; the functional group at one end of the functionalized compound is any one of maleic anhydride, thiol, and amine, and the other end of the functionalized compound is a group having dispersed fillers, anti-aging or anti-sulfurization reaction.
[0055] Specifically, it is necessary to ensure that all chemical reactions are carried out in an oxygen-free environment to prevent oxidation side reactions from occurring during the reaction process, which can be achieved by introducing an inert gas (such as nitrogen, carbon dioxide, or a mixture of the two) into an intermittent reactor. The residence time of the inert gas in the reactor is controlled to be at least 30 minutes, in order to fully replace the oxygen in the reactor and ensure the inertness of the reaction environment. In addition, the inert gas is introduced multiple times (at least 3 times), and a time interval of 5 to 30 minutes is set between two adjacent introductions, which can further improve the efficiency of oxygen removal and ensure the smooth progress of the reaction.
[0056] Next, a first set amount of waste material to be recycled (e.g., pre-treated waste tire scraps), a first set concentration of solvent (e.g., alkane, halogenated hydrocarbon or lipid solvent, with a concentration between 5% and 40%), a second set amount of functionalized compound and a third set amount of catalyst are added to the reactor. The selection of the functionalized compound should take into account that the functional group at one end can react with the components in the tire waste, and the other end has a group such as a dispersing filler, anti-aging or anti-sulfurization reaction to improve the performance of the recycled material. The addition of a catalyst can accelerate the reaction and improve the reaction efficiency.
[0057] Under the set reaction conditions (i.e., the first set conditions, reaction time 1 to 6 hours, reaction temperature 80°C to 120°C), these components will react chemically to generate the first product system. In order to further improve the purity and recovery rate of the product, after the reaction, ethanol can be added to the reactor to mix with the first product system to precipitate or separate the product, and the solvent can be recovered at the same time. The recovered solvent can be recycled after separation, distillation and other steps, thereby reducing the cost of the overall process, wherein the third set amount is 1 / 100 to 1 / 8000 of the total molar amount of the functionalized compound, the first set concentration is determined according to the minimum unit of the molecular structure of the rubber, and the determination of the second set amount needs to be determined according to the reaction active site equivalent. In chemical reactions, especially reactions involving polymer materials, "reaction active site equivalent" generally refers to the number of specific structures in the molecules involved in the reaction that can react chemically with another reactant. For the functionalized compounds in the tire recycling process, the reaction active site refers to a chemical group that can react with the rubber molecules (usually vulcanized rubber) in the waste tire, such as maleic anhydride, thiol or amine. These groups can react with the vulcanization points or other specific functional groups on the rubber molecular chain, thereby achieving chemical modification or functionalization of the rubber. To determine the value of the first set concentration of the solvent, it is necessary to consider the minimum unit of the molecular structure of the rubber. The specific steps are as follows: First, understand the type and molecular structure of the rubber in the waste tire. Different types of rubber (such as natural rubber, styrene-butadiene rubber, etc.) have different structural characteristics and minimum repeating units. According to the molecular structure of the rubber, determine its reactive sites, such as vulcanization sites or other functional groups. Assuming that the amount of waste tires is constant, determine the total number of active sites in the waste by chemical analysis or theoretical calculation. Based on the solubility of the rubber and the properties of the reactive sites, select a suitable solvent. The properties of the solvent should promote or not affect the reaction between the functionalized compound and the rubber. The first set concentration of the solvent is to ensure that the functionalized compound can fully contact and react with the active sites in the rubber molecule. When calculating the solvent concentration, the following factors need to be considered: the solubility of the functionalized compound in the solvent. The reaction compatibility of the solvent with the functionalized compound and the catalyst. The density of the active sites and the reactivity of the functionalized compound, that is, to ensure that the active groups of the functionalized compound can effectively react with each active site. The first set concentration of the solvent determined in this application is between 5% and 40%.
[0058] The tire recycling method of the present invention can effectively recycle waste tires under mild reaction conditions by using functionalized compounds and catalysts, avoiding excessive breakage of rubber molecular chains and expansion of molecular weight distribution that may be caused in traditional recycling methods, thereby improving the quality of recycled materials. In addition, by controlling the reaction environment to be anaerobic, the occurrence of oxidative side reactions can be reduced, further ensuring product purity. The recovery and reuse of solvents reduces production costs and improves economic benefits. Overall, the method of the present invention not only solves the technical difficulties in the recycling of waste tires, but also has the advantages of environmental protection and economy, and is of great significance for promoting the sustainable development of the tire industry.
[0059] S3, post-processing the first product system to obtain a product;
[0060] Specifically, the process comprises: introducing an alcohol substance into a batch reactor and mixing the alcohol substance with the first product system to obtain a product and an initial solvent; and sequentially separating and rectifying the initial solvent to obtain a solvent;
[0061] The alcohol substance is any one of methanol, ethanol, propanol, butanol, pentanol and hexanol.
[0062] The first setting conditions include: a reaction time of 1 to 6 hours and a reaction temperature of 80°C to 120°C.
[0063] Specifically, at the end of the reaction, alcohols are immediately introduced into the reactor, and the alcohols are any one of methanol, ethanol, propanol, butanol, amyl alcohol, and hexanol. One of the alcohols can be selected to combine with the first product system, and its amount should be sufficient to fully mix with the first product system, change the chemical environment of the system, and promote product precipitation or form a phase that is easy to separate. The alcohols selected in the present embodiment are ethanol, wherein the addition amount and speed of ethanol need to be appropriately adjusted to avoid drastic temperature changes or pressure fluctuations to ensure safe operation. After mixing, it is necessary to separate the product from the solvent by physical methods such as filtering and centrifugation. The product usually precipitates out in the form of precipitation or solid, while the solvent remains in the liquid phase. The solvent separated from the mixture needs to be further removed by a rectification process to restore its initial purity. Rectification is a separation technology based on the difference in boiling points of each component in a liquid mixture. By controlling temperature and pressure, a high-purity solvent can be effectively separated and recovered.
[0064] The recovery and reuse of solvents in this application reduces the consumption of chemicals, reduces processing costs, and reduces potential pollution to the environment, reflecting the concepts of green chemistry and circular economy. Through the introduction of functionalized compounds and specific post-processing steps, the molecular weight distribution of the product can be controlled, avoiding the performance degradation caused by the breakage of rubber molecular chains in traditional tire recycling methods, so that the recycled rubber has properties closer to those of virgin rubber, expanding its scope of application. Inert gas (such as nitrogen) is introduced into the reactor to remove oxygen, reducing the risk of explosion or combustion in the system and ensuring the safety of the operation process. This method combines chemical reaction and physical separation technology to achieve selective breaking of chemical bonds and efficient separation of products in the tire recycling process. Compared with traditional methods, it has higher conversion rate and selectivity, and provides a new way for the high-value utilization of waste tires.
[0065] Example 1
[0066] 1 kg of recovered solution polybutadiene desulfurized rubber and 1-10 g of maleic anhydride as an antioxidant are added to a reactor, the reactor is heated at 50°C for 30 minutes, a nitrogen storage device is connected, and nitrogen is filled 3-5 times under vacuum conditions. Refined hexane (purified hexane, i.e., hexane formed after water and oxygen are removed) is added under a nitrogen atmosphere, the temperature is raised to the reaction temperature (80°C to 120°C) with stirring, a catalyst toluene solution is injected, and after reacting for 3-6 hours, a desulfurized solution polybutadiene-maleic anhydride-antioxidant compound is obtained through termination, sedimentation, drying and purification. After extraction and analysis, it was found that the grafting rate can be in the range of 2%-20%, and it can be used as an auxiliary agent. The specific method is to calculate the energy conversion rate of the rubber tube by nuclear magnetic resonance. The specific calculation method belongs to the prior art and will not be repeated here. Among them, the catalyst toluene solution refers to a solution formed by dissolving the catalyst in a toluene solvent. The toluene solution can better disperse the catalyst so that it can evenly contact the waste to be recycled, thereby effectively catalyzing the chemical reaction and helping the functionalized compound to react with the components in the waste tire to achieve a better recycling effect. Toluene, as a good organic solvent, can dissolve a variety of organic substances, including rubber and some catalysts, and is one of the commonly used solvents in chemical reactions.
[0067] Example 2
[0068] Add 1 kg of recycled natural rubber desulfurized rubber and 10-15 g of an antioxidant with a mercapto group as one end group into a reactor, heat the reactor at 50°C for 30 minutes, connect a nitrogen storage device, fill the reactor with nitrogen 3-5 times under vacuum conditions, add refined hexane (purified hexane, i.e., hexane formed after removing water and oxygen) under nitrogen atmosphere, stir and heat to the reaction temperature (80°C to 120°C), inject a catalyst toluene solution, react for 0.5-3 hours, terminate, settle, dry, and purify to obtain a desulfurized natural rubber-monosulfur bond-antioxidant compound. After extraction and analysis, it is found that the grafting rate can be in the range of 3%-30%.
[0069] Example 3
[0070] Add 1 kg of recycled solution polybutadiene desulfurized rubber and 2-8 g of maleic anhydride as a surfactant in a reactor, heat the reactor at 50°C for 30 minutes, connect a nitrogen storage device, fill the reactor with nitrogen 3-5 times under vacuum conditions, add refined hexane in a nitrogen atmosphere, stir and heat to the reaction temperature, inject a catalyst toluene solution, react for 2-5 hours, terminate, settle, dry and purify to obtain a desulfurized solution polybutadiene-maleic anhydride-surfactant compound. After extraction and analysis, it is found that the grafting rate can be in the range of 2%-25%.
[0071] Example 4
[0072] Taking the PCR (Passenger Car Radial) tread rubber compound formula as the comparison benchmark, 20 grams of desulfurized soluble polystyrene-maleic anhydride-surfactant compound was taken and mixed with an equal amount of SBR in the formula to obtain a comparison sample. The prepared reference sample and the comparison sample were extracted with acetone and compared before and after aging. It was found that the tensile product of the sample with desulfurized soluble polystyrene-maleic anhydride-surfactant compound was increased by 15% compared with the reference sample.
[0073] Specifically, PCR (Passenger Car Radial) refers to passenger car radial tires, and the tread rubber compound formula is the rubber compound formula for manufacturing the tire tread layer, which is usually carefully designed according to the performance requirements of the tire (such as wear resistance, anti-skid performance, rolling resistance, etc.). Here, the original formula is set as the benchmark to compare the improved effect. Desulfurized solution polystyrene butadiene is a recycled rubber obtained by chemically treating waste tires, maleic anhydride is a compound that can improve the performance of polymer materials, and surfactants can enhance the dispersibility and compatibility of materials. Combining these three and replacing the SBR in the original formula in equal amounts means that while keeping the total mass of the formula unchanged, a part of the original rubber is replaced by the recycled rubber material to test its performance. Compounding is the process of fully mixing rubber with various additives (such as carbon black, vulcanizer, accelerator, etc.) at high temperature. Two samples were prepared, one is a benchmark sample prepared according to the original formula, and the other is a comparison sample in which part of the SBR is replaced by the above compounds. Acetone extraction is a commonly used method for separating additives and non-rubber components in rubber. The extracted samples are aged to simulate the performance changes of the product under the use environment, usually including long-term high temperature, light or mechanical stress testing. The tensile product is an indicator that measures the product of the tensile strength and elongation at break of a rubber material when it is stretched, which reflects the comprehensive tensile properties of the material. The tensile product of the control sample before and after aging is 15% higher than that of the baseline sample, which shows that the performance of the recycled rubber material after adding the desulfurized soluble polybutadiene-maleic anhydride-surfactant compound is improved compared with the pure SBR material, especially in terms of wear resistance and mechanical strength.
[0074] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.
[0075] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:
[0076] S1. Obtaining waste tires and pre-processing them to obtain waste materials to be recycled;
[0077] S2, adding a first set amount of waste material to be recycled, a first set concentration of solvent, a second set amount of functionalized compound, and a third set amount of catalyst to an intermittent reactor, and causing a chemical reaction under the first set conditions to obtain a first product system;
[0078] S3, post-processing the first product system to obtain a product.
[0079] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.
[0080] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.
[0081] An embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are performed.
[0082] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.
[0083] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.
[0084] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:
[0085] S1. Obtaining waste tires and pre-processing them to obtain waste materials to be recycled;
[0086] S2, adding a first set amount of waste material to be recycled, a first set concentration of solvent, a second set amount of functionalized compound, and a third set amount of catalyst to an intermittent reactor, and causing a chemical reaction under the first set conditions to obtain a first product system;
[0087] S3, post-processing the first product system to obtain a product.
[0088] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.
[0089] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.
[0090] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of N computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that here, or they can be made into individual integrated circuit modules, or N of the modules or steps can be made into a single integrated circuit module for implementation. In this way, the present application is not limited to any specific combination of hardware and software.
[0091] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0092] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.
[0093] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0094] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0095] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.
[0096] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A tire recycling method, characterized in that: include: Obtaining waste tires and pre-processing them to obtain waste materials for recycling; 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 functionalized compound, and a third set amount of a catalyst into an intermittent reactor, and causing a chemical reaction under the first set conditions to obtain a first product system; Post-processing the first product system to obtain a product; Wherein, the first set conditions include: reaction time is 1 to 6 hours, and reaction temperature is 80°C to 120°C.
2. The tire recycling method according to claim 1, characterized in that: The functional group at one end of the functionalized compound is any one of maleic anhydride, thiol and amine, and the other end of the functionalized compound is a group having dispersed fillers, anti-aging or anti-sulfurization reaction.
3. The tire recycling method according to claim 1, characterized in that: The steps of obtaining waste tires and pre-processing them to obtain waste materials to be recycled include: Crushing the waste tires to obtain initial waste materials to be recycled, wherein the initial waste materials to be recycled are in the form of blocks, flakes, powder or any one or more of the following; Controlling the initial waste material to be recycled to be dried at a set drying temperature to obtain the waste material to be recycled; Wherein, the set drying temperature is 100°C.
4. The tire recycling method according to claim 1, characterized in that: The step of chemically reacting under the first set condition also includes: Passing an inert gas into the intermittent reactor to remove oxygen in the reactor; Wherein, the inert gas is any one of nitrogen and carbon dioxide, or, The inert gas is a mixed gas of nitrogen and carbon dioxide.
5. The tire recycling method according to claim 4, characterized in that: Controlling the residence time of the inert gas in the batch reactor to be 30 min; and / or, The number of times the inert gas is introduced into the intermittent reactor is set to at least 3 times, and the time interval between two adjacent times of introducing the inert gas is 5 minutes to 30 minutes.
6. The tire recycling method according to claim 1, characterized in that: The solvent is any one of alkanes, halogenated hydrocarbons and lipids; and / or, The first set concentration is 5% to 40%.
7. The tire recycling method according to claim 1, characterized in that: The step of post-processing the first product system to obtain a product comprises: Passing an alcohol substance into the intermittent reactor to mix with the first product system to obtain a product and an initial solvent; Wherein, the alcohol substance is any one of methanol, ethanol, propanol, butanol, pentanol and hexanol.
8. The tire recycling method according to claim 7, characterized in that: After the step of obtaining the product and the solvent, the following steps are further included: The initial solvent is separated and distilled in sequence to obtain the solvent.
9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the tire recycling method according to any one of claims 1 to 8 is executed when the program is executed.
10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the tire recycling method according to any one of claims 1 to 8 through the computer program.
11. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the tire recycling method according to any one of claims 1 to 8 is implemented.
Citation Information
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