An ecological cracking and environment-friendly treatment device for waste and old tires

Abstract

The utility model provides a kind of old tyre ecological cracking environmental protection treatment device, it is related to tire recycling technical field, including base mechanism, drive mechanism is installed on the base mechanism, the drive mechanism is connected with screw pushing mechanism, heating mechanism is equipped outside the screw pushing mechanism, and the heating mechanism is fixedly installed on base mechanism.The utility model is equipped with screw feeding structure of three levels different sizes of screw blade one, screw blade two and screw blade three, and screw blade one, screw blade two and screw blade three are all installed on same main shaft, so that the main shaft drives three to rotate, the specification difference between three will make that the pushing speed of old tyre particle is not same, adapts multistage pushing rate, while also facilitating different stage processing of old tyre particle in simplifying structure.

Description

Technical Field

[0001] This utility model relates to the field of tire recycling technology, and in particular to an eco-friendly waste tire pyrolysis treatment device. Background Technology

[0002] Waste tire pyrolysis is a process in which waste tires are heated under anaerobic or oxygen-deficient conditions to decompose their large organic molecules into small-molecule fuel oil, combustible gas, and solid carbon black. Continuous pyrolysis, especially rotary kiln, fluidized bed, and screw pyrolysis, is the mainstream direction for industrial application due to its high efficiency, stability, and scalability advantages.

[0003] Among them, the screw type with built-in helical blades propels the material, and the residence time is controllable, making it suitable for small-scale operations.

[0004] In the existing technology, the heating structure and corresponding heating sections of screw propulsion reactors are mostly designed with a tight connection to take into account the efficiency of heat conduction. This method is very inconvenient to maintain due to the complexity of the structure. Furthermore, since the existing heating methods generally only act on the pyrolysis reaction cylinder, and the recovery and utilization of excess heat relies too much on the heat recovery device, the entire machine is too large and complex and needs improvement. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies by providing an eco-friendly waste tire pyrolysis treatment device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an eco-friendly waste tire pyrolysis treatment device, comprising a base mechanism, a drive mechanism mounted on the base mechanism, a spiral feeding mechanism connected to the drive mechanism, a heating mechanism sleeved on the outside of the spiral feeding mechanism, and the heating mechanism fixedly mounted on the base mechanism.

[0007] The base mechanism includes a base plate, on which bracket one and bracket two are fixedly installed;

[0008] The drive mechanism includes a power distribution box, which is electrically connected to a drive motor. The drive motor is connected to a gearbox via a gear set. The gear set is fixedly mounted on the base mechanism, and a coupling is fixedly mounted on the output end of the gearbox.

[0009] The spiral feeding mechanism includes a cylinder, with a side sealing plate connected to one end of the cylinder. A main shaft is rotatably connected to the axis of the side sealing plate. A spiral blade one is fixedly connected to the end of the main shaft near the coupling, and a spiral blade three is fixedly installed on the end of the main shaft away from the spiral blade one. A spiral blade two is fixedly installed on the spiral blade one between the spiral blade one and the spiral blade three. The cylinder is divided into a feeding chamber, an extrusion chamber, and a pyrolysis chamber. The outer wall of the feeding chamber is fixedly connected to a support frame one. The spiral blade one is disposed in the feeding chamber, the spiral blade two is disposed in the extrusion chamber, and the spiral blade three is disposed in the pyrolysis chamber. A gas collection box is installed on the pyrolysis chamber.

[0010] The heating mechanism includes a housing, the outer wall of which is fixedly connected to the second bracket. The housing is inserted into the outside of the extrusion chamber and the pyrolysis chamber. Connecting rings are connected to the inner walls of the housing at both ends of the pyrolysis chamber via connecting rods. Heaters are fixedly connected to the two connecting rings. A heat-equalizing sleeve is fixedly connected inside the second spiral blade. The heat-equalizing sleeve is inserted into the extrusion chamber and the pyrolysis chamber.

[0011] In a preferred embodiment, an exhaust port is provided on the corresponding pyrolysis chamber inside the gas collection box, and an exhaust pipe is installed on the gas collection box, which is connected to an external gas transmission device.

[0012] In a preferred embodiment, a perforated plate is sealed and installed on the end of the pyrolysis chamber away from the extrusion chamber, and a discharge port is installed on the end of the perforated plate away from the pyrolysis chamber, and the discharge port is connected to an external collector.

[0013] In a preferred embodiment, the feed hopper is equipped with a feed port, which is connected to an external feeder.

[0014] In a preferred embodiment, the spindle is connected to the coupling via a transmission connection.

[0015] In a preferred embodiment, the gear set includes three gears. The middle transmission gear is mounted on the base plate via a gear carrier, and the other two gears are respectively mounted on the output shaft of the drive motor and the input shaft of the transmission, and the other two gears mesh with the middle gear.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] This invention employs a three-stage spiral feeding structure with spiral blades of different sizes (spiral blade 1, spiral blade 2, and spiral blade 3), all mounted on the same main shaft. The size differences between the three blades, driven by the main shaft, result in varying feeding speeds for the waste tire pellets, accommodating multiple feeding rates. This simplifies the structure and facilitates different stages of waste tire pellet processing. Furthermore, the heat-equalizing jacket designed in this invention has a smaller coverage area than the heater, creating a temperature difference between the covered and uncovered parts. The uncovered part has a lower temperature, serving as preheating for the extrusion chamber. This design fully utilizes the heat generated by the heater and leverages the principle of air expansion upon heating to accelerate the expulsion of air from the gaps between the waste tire pellets, resulting in more efficient extrusion and increased pyrolysis efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an eco-friendly waste tire pyrolysis treatment device provided by this utility model.

[0019] Figure 2 This is a partial half-sectional schematic diagram of an eco-friendly waste tire pyrolysis treatment device provided by this utility model.

[0020] Figure 3 This utility model provides a schematic diagram of the combined spiral feeding mechanism and heating mechanism of an eco-friendly waste tire pyrolysis treatment device.

[0021] Figure 4 This is a schematic diagram of the spiral feeding mechanism of a waste tire eco-decomposition and environmental protection treatment device provided by this utility model.

[0022] Legend:

[0023] 1. Base mechanism; 11. Base plate; 12. Bracket 1; 13. Bracket 2;

[0024] 2. Drive mechanism; 21. Distribution box; 22. Drive motor; 23. Gearbox; 24. Coupling;

[0025] 3. Gear set;

[0026] 4. Spiral feeding mechanism; 41. Cylinder; 42. Side sealing plate; 43. Main shaft; 44. Spiral blade one; 45. Spiral blade two; 46. Spiral blade three; 47. Feed bin; 48. Extrusion bin; 49. Cracking bin; 410. Feed port; 411. Exhaust port; 412. Gas collection box; 413. Exhaust pipe; 414. Perforated plate; 415. Discharge port;

[0027] 5. Heating mechanism; 51. Outer shell; 52. Connecting rod; 53. Connecting ring; 54. Heater; 55. Heat distribution jacket. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a technical solution: an eco-friendly waste tire pyrolysis treatment device, including a base mechanism 1, a drive mechanism 2 installed on the base mechanism 1, and a spiral pushing mechanism 4 connected to the drive mechanism 2.

[0031] The base mechanism 1 includes a base plate 11, on which a first bracket 12 and a second bracket 13 are fixedly installed.

[0032] The drive mechanism 2 includes a power distribution box 21, which is electrically connected to a drive motor 22. The drive motor 22 is connected to a gearbox 23 via a gear set 3. The gear set 3 is fixedly mounted on the base mechanism 1, and a coupling 24 is fixedly mounted on the output end of the gearbox 23.

[0033] The gear set 3 includes three gears. The middle transmission gear is mounted on the base plate 11 via a gear carrier. The other two gears are mounted on the output shaft of the drive motor 22 and the input shaft of the transmission 23, respectively, and the other two gears mesh with the middle gear.

[0034] The spiral feeding mechanism 4 includes a cylinder 41. A side sealing plate 42 is connected to one end of the cylinder 41. A main shaft 43 is rotatably connected to the axis of the side sealing plate 42. The main shaft 43 is connected to the coupling 24. A spiral blade 44 is fixedly connected to the end of the main shaft 43 near the coupling 24. A spiral blade 46 is fixedly installed on the end of the main shaft 43 away from the spiral blade 44. A spiral blade 45 is fixedly installed on the spiral blade 44 between the spiral blade 44 and the spiral blade 46. The cylinder 41 is divided into a feeding chamber 47, a pressing chamber 48, and a pyrolysis chamber 49. The outer wall of the feeding chamber 47 is fixedly connected to the support 12. The spiral blade 44 is set in the feeding chamber 47. The spiral blade 45 is set in the pressing chamber 48. The spiral blade 46 is set in the pyrolysis chamber 49. A gas collection box 412 is installed on the pyrolysis chamber 49.

[0035] Furthermore, an exhaust port 411 is provided on the corresponding pyrolysis chamber 49 inside the gas collection box 412, and an exhaust pipe 413 is installed on the gas collection box 412, which is connected to an external gas transmission device.

[0036] Furthermore, a perforated plate 414 is sealed and installed on the end of the pyrolysis chamber 49 away from the extrusion chamber 48, and a discharge port 415 is installed on the end of the perforated plate 414 away from the pyrolysis chamber 49, and the discharge port 415 is connected to an external collector.

[0037] Furthermore, the feed hopper 47 is equipped with a feed port 410, which is connected to an external feeder.

[0038] In this embodiment, the drive motor 22 serves as the power source for the spiral feeding mechanism 4, and the speed is adjusted by the gearbox 23. The segmented arrangement of the spiral blades 44, 45, and 46 allows them to have different effects on the waste tire particles when rotating with the main shaft 43. The large diameter and large gap of the spiral blade 44 slows down the feeding speed, allowing the waste tire particles in the compression chamber 48 and the pyrolysis chamber 49 to remain for a longer time. The small gap of the spiral blade 45 allows the waste tire particles to be squeezed to expel air. The smaller diameter of the spiral blade 46 compared to the spiral blades 44 and 45 makes the movement speed of the pyrolysis waste tire particles in the pyrolysis chamber 49 slower, ensuring that they are fully pyrolyzed.

[0039] Example 2

[0040] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a heating mechanism 5 is sleeved on the outside of the spiral feeding mechanism 4. The heating mechanism 5 is fixedly installed on the base mechanism 1. The heating mechanism 5 includes a shell 51. The outer wall of the shell 51 is fixedly connected to the bracket 13. The shell 51 is inserted into the outside of the extrusion chamber 48 and the pyrolysis chamber 49. The inner walls of the shell 51 at both ends of the pyrolysis chamber 49 are connected to connecting rings 53 by connecting rods 52. The two connecting rings 53 are fixedly connected to heaters 54. A heat-spreading sleeve 55 is fixedly connected inside the spiral blade 45. The heat-spreading sleeve 55 is inserted into the extrusion chamber 48 and the pyrolysis chamber 49.

[0041] In this embodiment, the heater 54 can heat the heat distribution jacket 55. The heat generated by the heater 54 is dispersed by the heat distribution jacket 55 and then applied to the waste tire particles in the extrusion chamber 48 and the pyrolysis chamber 49. Since there is no heater 54 directly heating the heat distribution jacket 55 corresponding to the extrusion chamber 48, the heat dispersed from the heat distribution jacket 55 corresponding to the pyrolysis chamber 49 will make the temperature of the heat distribution jacket 55 corresponding to the pyrolysis chamber 49 lower than the temperature of the heat distribution jacket 55 corresponding to the extrusion chamber 48. This design can heat the air between the waste tire particles in the extrusion chamber 48, accelerate its discharge, and preheat the waste tire particles in the extrusion chamber 48.

[0042] Furthermore, since the extrusion chamber 48 and the pyrolysis chamber 49 are inserted into the heat-spreading sleeve 55, and the heat-spreading sleeve 55 is fixedly installed in the outer shell 51 by the heater 54, the connecting ring 53 and the connecting rod 52, the outer shell 51 can provide support for the cylinder 41, making the overall operation of the screw pusher mechanism 4 more stable. The insertion method also simplifies the connection between the screw pusher mechanism 4 and the heating mechanism 5, making it convenient for users to maintain this utility model.

[0043] In addition, the cavity between the outer shell 51 and the heat-spreading jacket 55 can be filled with heat-insulating material to prevent the outer side of the heating mechanism 5 from being heated by heat radiation.

[0044] Working principle:

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when using this utility model, first install the feed port 410 on the feeding equipment and connect the exhaust pipe 413 to the gas collection device, and then install the discharge port 415 on the slag collection device.

[0046] In operation, waste tire pellets enter the feed hopper 47 through the feed port 410 and are pushed into the extrusion hopper 48 by the first spiral blade 44. The second spiral blade 45 in the extrusion hopper 48 extrudes and exhausts the waste tire pellets, while preheating them under the action of the heat-spreading jacket 55. After exhausting and preheating in the extrusion hopper 48, the second spiral blade 45 pushes the pellets into the pyrolysis hopper 49, where the third spiral blade 46 continues to push them. Under the action of the heat-spreading jacket 55, the pellets are heated and pyrolyzed. The generated gas enters the gas collection box 412 through the exhaust port 411 and is transported to the gas collection device through the exhaust pipe 413. The slag produced after pyrolysis is completed is discharged through the perforated plate 414 by the third spiral blade 46 and enters the slag collection device through the discharge port 415, thus completing the recycling.

[0047] The cylinder 41 of this invention is connected to other equipment through the inlet port 410, the exhaust pipe 413 and the discharge port 415 to complete the sealing, and the gas generated can be fully collected, thereby improving the pyrolysis efficiency of waste tires.

[0048] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A waste tire eco-friendly pyrolysis treatment device, characterized in that, Includes a base mechanism (1), on which a drive mechanism (2) is installed, and the drive mechanism (2) is connected to a spiral pusher mechanism (4). A heating mechanism (5) is sleeved on the outside of the spiral pusher mechanism (4), and the heating mechanism (5) is fixedly installed on the base mechanism (1). The base mechanism (1) includes a base plate (11), on which a bracket one (12) and a bracket two (13) are fixedly installed; The drive mechanism (2) includes a power distribution box (21), which is electrically connected to a drive motor (22). The drive motor (22) is connected to a gearbox (23) via a gear set (3). The gear set (3) is fixedly mounted on the base mechanism (1), and a coupling (24) is fixedly mounted on the output end of the gearbox (23). The spiral feeding mechanism (4) includes a cylinder (41), a side sealing plate (42) is connected to one end of the cylinder (41), a main shaft (43) is rotatably connected to the axis of the side sealing plate (42), a spiral blade (44) is fixedly connected to the end of the main shaft (43) near the coupling (24), and a spiral blade (46) is fixedly installed on the end of the main shaft (43) away from the spiral blade (44), and a spiral blade (46) is connected between the spiral blade (44) and the spiral blade (46). Spiral blade 2 (45) is fixedly installed on blade 1 (44). The cylinder (41) is divided into a feeding chamber (47), an extrusion chamber (48) and a pyrolysis chamber (49). The outer wall of the feeding chamber (47) is fixedly connected to the support 1 (12). Spiral blade 1 (44) is set in the feeding chamber (47). Spiral blade 2 (45) is set in the extrusion chamber (48). Spiral blade 3 (46) is set in the pyrolysis chamber (49). A gas collection box (412) is installed on the pyrolysis chamber (49). The heating mechanism (5) includes a housing (51), the outer wall of which is fixedly connected to the second bracket (13). The housing (51) is inserted into the outside of the extrusion chamber (48) and the pyrolysis chamber (49). The inner wall of the housing (51) corresponding to the end of the pyrolysis chamber (49) is connected to a connecting ring (53) by a connecting rod (52). The two connecting rings (53) are fixedly connected to a heater (54). The second spiral blade (45) is fixedly connected to a heat-equalizing sleeve (55), which is inserted into the extrusion chamber (48) and the pyrolysis chamber (49).

2. The waste tire eco-pyrolysis environmental protection treatment device according to claim 1, characterized in that: The gas collection box (412) has an exhaust port (411) on the corresponding pyrolysis chamber (49) inside, and an exhaust pipe (413) is installed on the gas collection box (412), which is connected to an external gas transmission device.

3. The waste tire eco-decomposition and environmental protection treatment device according to claim 1, characterized in that: A perforated plate (414) is sealed on one end of the pyrolysis chamber (49) away from the extrusion chamber (48). A discharge port (415) is installed on the other end of the perforated plate (414) away from the pyrolysis chamber (49). The discharge port (415) is connected to an external collector.

4. The waste tire eco-pyrolysis environmental protection treatment device according to claim 1, characterized in that: The feed hopper (47) is equipped with a feed port (410), which is connected to an external feeder.

5. The waste tire eco-pyrolysis environmental protection treatment device according to claim 1, characterized in that: The main shaft (43) is connected to the coupling (24) for transmission.

6. The waste tire eco-pyrolysis environmental protection treatment device according to claim 1, characterized in that: The gear set (3) includes three gears. The middle transmission gear is mounted on the base plate (11) via a gear frame. The other two gears are mounted on the output shaft of the drive motor (22) and the input shaft of the transmission (23), respectively, and the other two gears mesh with the middle gear.

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