Waste tire thermal decomposition system

Abstract

The invention relates to a waste tire thermal decomposition system, which comprises a feeding device, a reactor, and a discharging device. The discharging device and the feeding device are arranged at both ends of the reactor. The discharging device comprises an oil and gas discharging unit and a solid discharging unit. A chain for transmission is arranged in the reactor. The system also comprises a coking removal device. The coking removal device comprises a pipeline connected to the reactor. A chain that moves synchronously with the chain of the reactor is arranged in the pipeline. A transmission wheel is arranged at the end of the pipeline. The transmission wheel is synchronized with the driving wheel of the chain. The chain comprises chain links, and the chain links comprise butterfly scrapers. A connecting shaft extending to both sides is arranged perpendicular to the middle of the butterfly scraper. The connecting shaft and the butterfly scraper are integrally formed. Not only can coking in the pipeline be scraped off at any time, but condensed oil in the pipeline can also be reasonably used to clean and lubricate the coking removal device, so that self-cleaning and self-lubrication are achieved. The design is very ingenious and can be widely used in waste tire thermal decomposition systems.

Description

Technical Field

[0001] The invention relates to a waste tire thermal decomposition system. Background Art

[0002] The waste tire thermal decomposition system in the existing technology generally crushes the waste tires and then decomposes them in a reactor. The decomposed pyrolysis oil, combustible gas, carbon black, iron wire, etc. are then taken out and reused. Since the oil decomposes and vaporizes when heated in the reactor, there are often both oil vapor and oil in the reactor during the entire reaction process. Therefore, the oil vapor and oil need to be separated. However, due to its own characteristics, coking often occurs during the reaction process. There are many methods for removing coking in the existing technology, but none of them is economical and affordable. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a waste tire thermal decomposition system that can not only operate synchronously with the tire fragments in the reactor, but also can remove coke conveniently and quickly.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] A waste tire thermal decomposition system comprises a feeding device, a reactor, and a discharging device. The discharging device and the feeding device are arranged at both ends of the reactor. The discharging device comprises an oil and gas discharging unit and a solid discharging unit. A chain for transmission is arranged in the reactor. The system also comprises a coking removal device. The coking removal device comprises a pipeline connected to the reactor. A chain that moves synchronously with the chain of the reactor is arranged in the pipeline. A transmission wheel is arranged at the end of the pipeline. The transmission wheel is synchronized with the driving wheel of the chain. The chain comprises chain links, and the chain links comprise butterfly scrapers. A connecting shaft extending outward from the middle of the vertical butterfly scraper is arranged on both sides. The connecting shaft and the butterfly scraper are integrally formed.

[0006] Furthermore, the oil and gas discharge unit includes an oil vapor outlet and an oil outlet, the oil outlet is arranged at the bottom, the oil vapor outlet is arranged at the top, and the transmission wheel is arranged opposite to the oil vapor outlet and the oil outlet, and is arranged between the two.

[0007] Furthermore, the housing from the oil outlet to the transmission wheel portion is configured in a funnel shape, with the bottom of the funnel being the oil outlet.

[0008] Furthermore, a condenser is provided above the oil vapor outlet.

[0009] Furthermore, the connecting shafts on both sides are configured to be snap-fitted, with one side being configured as a snap-fitting piece and the other side being configured as a snap-fitting slot. The snap-fitting piece and the snap-fitting slot cooperate with each other, and corresponding mounting holes are configured on the snap-fitting piece and the snap-fitting slot.

[0010] Furthermore, a concave arc is provided in the middle of the butterfly scraper.

[0011] Furthermore, at least one concave curvature is provided.

[0012] Furthermore, a transition reinforcement portion is provided between the butterfly scraper and the connecting shaft, and the cross-sectional area of the transition reinforcement portion gradually decreases from the butterfly scraper to the connecting shaft.

[0013] Furthermore, the chain includes more than three chain links, and also includes a pin shaft, the pin shaft cooperates with the mounting hole on the clamping piece and the clamping groove, and adjacent chain links are connected by the pin shaft.

[0014] The coke removal device of the present technical solution includes a pipeline connected to the reactor, a chain that moves synchronously with the chain of the reactor is arranged in the pipeline, and a transmission wheel is arranged at the end of the pipeline, and the transmission wheel and the driving wheel of the chain are synchronized. The transmission wheel and the driving wheel of the chain are synchronized, which can maintain the synchronous flow rate of the oil vapor in the coke removal device and the reactor. The chain link of the present technical solution includes a butterfly scraper, and a connecting shaft extending to both sides is arranged vertically in the middle of the butterfly scraper, and the connecting shaft and the butterfly scraper are formed as one piece. The shape of the butterfly scraper of the present technical solution has two unfolded scrapers, which can scrape off the coke in the pipeline of the coke removal device and drop it from the oil outlet with the oil, and the butterfly scraper and the connecting shafts extending on both sides are arranged as an integrated structure, which is relatively strong and can withstand a relatively large force even though the scraper is extended and subjected to force.

[0015] The oil and gas discharge unit of the present technical solution includes an oil vapor outlet and an oil outlet. The oil outlet is arranged at the bottom, and the oil vapor outlet is arranged at the top. The transmission wheel is arranged opposite to the oil vapor outlet and the oil outlet, and is arranged between the two. In this way, the oil dripping from the top can just drip onto the chain, continuously cleaning the chain and preventing coking and jamming of the chain.

[0016] In this technical solution, a condenser is arranged above the oil vapor outlet, which can cool or heat the oil vapor, so that more oil flows down to clean and lubricate the chain.

[0017] The connecting shafts on both sides of the present technical solution are configured to be snap-connected, with one side being configured as a snap-connecting plate and the other side being configured as a snap-connecting slot. The snap-connecting plate and the snap-connecting slot cooperate with each other, and corresponding mounting holes are configured on the snap-connecting plate and the snap-connecting slot. In this way, when the chain links are connected to form a complete chain, the connection is relatively firm and very easy to disassemble. When the chain needs to be adjusted in length due to thermal expansion or other circumstances, the chain links can be disassembled and added or subtracted very conveniently.

[0018] The butterfly scraper of the present technical solution is provided with a concave arc in the middle, and the concave arc can be determined according to the concave of the driving wheel. The concave arc is just stuck between the gear teeth of the driving wheel, so that the driving wheel drives the rotation movement.

[0019] In the present technical solution, at least one concave arc is provided, which can be provided on the surface corresponding to the driving wheel, or on both the upper and lower surfaces. When both surfaces are provided, the chain link is easier to install without distinguishing between the upper and lower surfaces.

[0020] This technical solution provides a transition reinforcement between the butterfly scraper and the connecting shaft. The cross-sectional area of the transition reinforcement gradually decreases from the butterfly scraper to the connecting shaft. The provision of the transition reinforcement effectively enhances the strength of the entire chain link, especially dispersing the axial force acting on the butterfly scraper, making the chain link more durable.

[0021] The chain of this technical solution includes three or more of the aforementioned chain links, and also includes a pin. The pin mates with the mounting holes in the engaging plate and the engaging slot, and the adjacent chain links are connected by the pin. In this way, multiple chain links can be connected by the pin to form a complete chain, which can then be installed where needed. The pin connection method is very convenient and fast, and it is also relatively easy to replace or remove the chain links later.

[0022] The waste tire thermal decomposition system of this technical solution is equipped with a coking removal device that operates at the same speed as the reactor. Not only can the coking in the pipeline be scraped off at any time, but the condensed oil in the pipeline is also rationally utilized to clean and lubricate the coking removal device, achieving self-cleaning and self-lubrication. The design is very ingenious and can be widely used in waste tire thermal decomposition systems.

[0023] On the basis of being in accordance with common knowledge in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the chain link of this technical solution;

[0025] Figure 2 This is a schematic diagram of the structure of the chain and drive wheel in this technical solution;

[0026] Figure 3 It is a structural schematic diagram of the coking removal device of this technical solution;

[0027] Figure 4 It is a structural diagram of the waste tire thermal decomposition system of this technical solution.

[0028] 1-chain link; 2-pin shaft; 3-clamping piece; 4-recessed arc; 5-transition reinforcement; 6-clamping groove; 7-mounting hole; 8-connecting shaft; 9-butterfly scraper, 10-chain, 11-oil vapor outlet, 12-inspection window, 13-oil outlet, 14-transmission wheel, 15-coking removal device, 16-pipeline, 17-reactor, 18-reactor, 19-drive wheel, 20-drive wheel. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention are further described in detail below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Example: A waste tire thermal decomposition system includes a feeder, a reactor, and a discharger. The discharger and feeder are located at both ends of the reactor. The discharger includes an oil and gas discharge unit and a solid discharge unit. A chain is provided within the reactor to act as a transmission. The system also includes a coke removal device 15. The coke removal device 15 includes a pipe 16 connected to reactors 17 and 18. A chain 10 is provided within pipe 16 and moves synchronously with the chains of reactors 17 and 18. A drive wheel 14 is provided at the end of pipe 16 and is synchronized with drive wheels 19 and 20 of chain 10. The oil and gas discharge unit includes an oil vapor outlet 11 and an oil outlet 13. The oil outlet 13 is located below, while the oil vapor outlet 11 is located above. The drive wheel 14 is located directly opposite the oil vapor outlet 11 and the oil outlet 13, and is positioned between them. The housing from the oil outlet 13 to the drive wheel 14 is funnel-shaped, with the oil outlet 13 at the bottom of the funnel. A condenser is provided above the oil vapor outlet 11. The chain 10 includes a link 1, which includes a butterfly scraper 9. A connecting shaft 8 extending from the middle of the butterfly scraper 9 is provided on both sides. The connecting shaft 8 and the butterfly scraper 9 are integrally formed. The connecting shafts 8 on both sides are configured to be snap-fitted, with a snap-fit plate 3 on one side and a snap-fit groove 6 on the other side. The snap-fit plate 3 cooperates with the snap-fit groove 6, and mounting holes 7 are correspondingly provided on the snap-fit plate 3 and the snap-fit groove 6. A recessed arc 4 is provided in the middle of the butterfly scraper 9. At least one recessed arc 4 is provided. A transition reinforcement portion 5 is provided between the butterfly scraper 9 and the connecting shaft 8, and the cross-sectional area of the transition reinforcement portion 5 gradually decreases from the butterfly scraper 9 to the connecting shaft 8. The chain 10 includes more than three links 1, and also includes a pin 2. The pin 2 cooperates with the snap-fit plate 3 and the mounting hole 7 on the snap-fit groove 6. Adjacent links 1 are connected via the pin 2.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A waste tire thermal decomposition system, comprising a feed device, a reactor, and a discharge device, wherein the discharge device and the feed device are arranged at both ends of the reactor, the discharge device comprises an oil and gas discharge unit and a solid discharge unit, and a chain for transmission is arranged in the reactor, characterized in that: The invention also includes a coke removal device, which includes a pipeline connected to the reactor, a chain that moves synchronously with the chain of the reactor, a transmission wheel is provided at the end of the pipeline, and the transmission wheel is synchronized with the driving wheel of the chain. The chain includes more than three chain links, and the chain links include butterfly scrapers. A connecting shaft extending from the middle of the butterfly scrapers is provided perpendicular to the butterfly scrapers and extends to both sides. The connecting shaft and the butterfly scrapers are integrally formed. The oil and gas discharge unit includes an oil vapor outlet and an oil outlet, the oil outlet is arranged at the bottom, the oil vapor outlet is arranged at the top, the transmission wheel is arranged opposite to the oil vapor outlet and the oil outlet, and is arranged between the two, and a condenser is arranged above the oil vapor outlet; The connecting shafts on both sides are configured as a snap-fit type, with one side configured as a snap-fit piece and the other side configured as a snap-fit slot. The snap-fit piece and the snap-fit slot cooperate with each other, and mounting holes are correspondingly provided on the snap-fit piece and the snap-fit slot. A transition reinforcement portion is provided between the butterfly scraper and the connecting shaft, and the cross-sectional area of the transition reinforcement portion gradually decreases from the butterfly scraper to the connecting shaft; The chain also includes a pin shaft, which cooperates with the mounting holes on the clamping piece and the clamping groove, and adjacent chain links are connected through the pin shaft.

2. The waste tire thermal decomposition system according to claim 1, characterized in that: The housing from the oil outlet to the transmission wheel portion is arranged in a funnel shape, and the bottom of the funnel is the oil outlet.

3. The waste tire thermal decomposition system according to claim 1, characterized in that: A concave arc is set in the middle of the butterfly scraper.

4. The waste tire thermal decomposition system according to claim 3, characterized in that: At least one concave arc is set.

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