Temperature-controllable regenerated rubber desulfurization reaction device and use method thereof
By using an eccentric disc drive and irregularly shaped curved impeller design, the problem of uneven contact caused by material accumulation in the desulfurization reaction of recycled rubber is solved, which improves product quality and reduces equipment complexity and maintenance difficulty, making it suitable for large-scale low-cost production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU DANRUN ENVIRONMENTAL PROTECTION EQUIPMENT CO LTD
- Filing Date
- 2025-12-30
- Publication Date
- 2026-04-24
AI Technical Summary
In traditional desulfurization reactors for recycled rubber, material accumulation leads to uneven contact, resulting in localized overheating and carbonization or incomplete desulfurization. Existing solutions increase equipment complexity and maintenance difficulty, making them unsuitable for large-scale, low-cost production.
The transmission component driven by an eccentric disc and the design of irregular curved surface stirring blades realize the combined rotation and reciprocating motion of the stirring shaft, breaking the limitations of the stirring trajectory, ensuring uniform contact between the material and the desulfurization medium, and avoiding local overheating and desulfurization failure.
It achieves uniform contact between materials and desulfurization media, improves the quality of recycled rubber products, reduces equipment costs and maintenance difficulty, and adapts to the needs of large-scale production.
Smart Images
Figure CN121911342A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of desulfurization reaction equipment for reclaimed rubber, specifically to a temperature-controlled desulfurization reaction equipment for reclaimed rubber and its usage method. Background Technology
[0002] The temperature-controlled desulfurization reactor for recycled rubber is a core piece of equipment that integrates a heating module, stirring mechanism, temperature control system, and cooling unit for the desulfurization and regeneration of waste vulcanized rubber powder. Its core function is to restore the plasticity of rubber by breaking the SS and SC bonds in the vulcanized rubber through precise temperature control. The temperature control system can collect temperature data in the reaction chamber or barrel in real time and provide feedback to adjust the heating power, so that the temperature is stable within the range required by the process. The temperature-controlled desulfurization reactor for recycled rubber is a key piece of equipment for the stable production of qualified recycled rubber in the recycling of waste rubber. During the desulfurization reaction of recycled rubber, the material itself has certain stacking characteristics. Under the influence of gravity, it is very easy to accumulate at the bottom of the reaction device, forming a dense material stack layer. This is the core premise that leads to insufficient contact in the later stage. The stirring structure equipped in traditional reaction devices is mostly a single rotating blade design. Its stirring trajectory is fixed and the coverage is limited. It can only stir a small amount of material in the upper part of the device and cannot effectively reach the stacked material at the bottom, let alone break up the stack layer. This structural defect directly leads to severe uneven contact between the material and the desulfurization medium (such as high-temperature steam and desulfurizing agent). On the one hand, the material that is not fully piled up in the upper part of the device may experience local overheating and carbonization due to excessive contact with high-temperature steam and desulfurizing agent. On the other hand, the material in the bottom pile layer is blocked by the outer layer material and has difficulty in effectively contacting the desulfurization medium, resulting in local incomplete desulfurization. These two problems together lead to a significant decline in the quality of recycled rubber products, resulting in defects such as uneven performance and excessive impurities. To address the aforementioned issues, existing solutions often employ complex mixing systems with electronic speed control and hydraulic drive, attempting to improve mixing efficiency by increasing mixing intensity or changing mixing speed, or by adding auxiliary heating units to compensate for insufficient local temperatures. However, these solutions not only complicate the overall structure of the device and significantly increase manufacturing costs, but also increase the difficulty of daily maintenance due to the complexity of the core drive and heating components, requiring regular inspection and debugging by professionals. This also increases the probability of malfunctions and makes it difficult to meet the needs of large-scale, low-cost reclaimed rubber production. Therefore, this paper proposes a temperature-controlled reclaimed rubber desulfurization reaction device and its usage method to address these issues. Summary of the Invention
[0003] The purpose of this invention is to provide a temperature-controlled desulfurization reaction device for recycled rubber and its usage method, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: A temperature-controlled desulfurization reaction device for recycled rubber and its method of use include a reaction tank and a matching tank cover. A feed hopper is connected to the top side of the tank cover. The reaction tank and the tank cover are connected by multiple sets of circumferentially distributed connecting clips. A drive assembly is located on the side of the tank cover away from the feed hopper. A transmission assembly is located below the tank cover. A stirring assembly is located below the transmission assembly. The transmission assembly includes an eccentric disc. A connecting hole is opened on the side of the eccentric disc away from its geometric center. An annular groove is opened on the outer side of the eccentric disc. A bearing is fitted on the outer side of the annular groove. A connecting rod is located diagonally below the bearing. A connecting plate is fixedly connected to the top of the connecting rod. Ear plates are symmetrically and fixedly connected to both ends of the connecting plate near the bearing. An ear seat is fixedly connected to the end of the ear plate away from the connecting plate. The ear seat is hinged to the outer side of the bearing via a pin. A universal joint is connected to the bottom end of the connecting rod, and a slider is fixedly connected to the bottom end of the universal joint.
[0005] As a further optimization of the present invention, the driving assembly includes a driving motor fixedly connected to the top of the can cover away from the feed hopper via a mounting plate, and a driving pulley is fixedly connected to the bottom output end of the driving motor. A driven pulley is provided on the side of the driving pulley near the feed hopper.
[0006] As a further optimization of the present invention, the driving pulley and the driven pulley are connected by a V-belt, the driven pulley is coaxially arranged with the can lid, and a main shaft is fixedly connected to the bottom center of the driven pulley.
[0007] As a further optimization of the present invention, the bottom end of the main shaft penetrates through the can lid and extends below the can lid, the connecting hole is adapted to the bottom end of the main shaft, and the bottom end of the main shaft is inserted and fixed in the connecting hole.
[0008] As a further optimization of the present invention, the stirring assembly includes a stirring shaft disposed below the eccentric disk, the stirring shaft being coaxially disposed with the main shaft, and a guide groove being provided on the upper outer side of the stirring shaft.
[0009] As a further optimization of the present invention, the guide groove is T-shaped, the slider is T-shaped to fit the guide groove, and the slider is longitudinally slidably connected within the guide groove.
[0010] As a further optimization of the present invention, two sets of stirring mechanisms are longitudinally sleeved on the outer side of the stirring shaft, with the upper stirring mechanism located below the guide groove. The stirring mechanism includes multiple mounting sleeves and multiple stirring blades.
[0011] As a further optimization of the present invention, the mounting sleeve is fitted and fixedly connected to the outside of the stirring shaft, and one end of each of the plurality of stirring blades is fixedly connected to the outside of the mounting sleeve.
[0012] As a further optimization of the present invention, the stirring blades are provided with irregular curved surfaces, and multiple stirring blades are arranged in a circular array with the center of the mounting sleeve as the center.
[0013] How to use a temperature-controlled desulfurization reactor for recycled rubber: S1: When the temperature-controlled reclaimed rubber desulfurization reaction device is in the initial standby state, the tank cover and the reaction tank are sealed by multiple sets of circumferentially distributed connecting buckles. The feed hopper on one side of the top of the tank cover is closed. The drive component is not started. The drive motor remains stationary. The active pulley and the driven pulley do not rotate. The main shaft at the bottom center of the driven pulley is stationary. The eccentric disc fixed at the bottom of the main shaft is synchronously stationary. The bearing in the annular groove on the outside of the eccentric disc has no displacement. The connecting rod is in the initial stationary position. The universal joint and the slider at the bottom of the connecting rod are not moving. The slider is fitted into the guide groove on the upper part of the stirring shaft. The stirring shaft and the main shaft remain coaxial and stationary. The two sets of stirring mechanisms on the outside of the stirring shaft are also completely stationary. The inside of the reaction tank is empty, waiting for the desulfurization reaction to start. S2: When desulfurization reaction processing of recycled rubber is required, the operator first opens the feed hopper on the top of the tank cover and puts the recycled rubber raw material to be desulfurized into the inner cavity of the reaction tank through the feed hopper. After the rubber raw material is added in the required amount, the feed hopper is closed to ensure the airtightness of the reaction tank. Then, the drive motor in the drive assembly, which is fixed to the top of the tank cover by the mounting plate, is started. The bottom output end of the drive motor rotates and drives the active pulley fixed at its end to rotate synchronously. The diameter of the active pulley is smaller than that of the driven pulley, and the two form a first-stage reduction transmission. The active pulley drives the driven pulley on the same side to rotate synchronously through the V-belt on the outside. The driven pulley is coaxial with the tank cover. The main shaft fixedly connected at the bottom center rotates synchronously with the driven pulley. The bottom end of the main shaft passes through the tank cover and extends to the bottom of the tank cover. The bottom end of the main shaft is inserted and fixed in the connecting hole on the side of the eccentric disk that is off the geometric center, thereby driving the eccentric disk to rotate synchronously. S3: During the rotation of the eccentric disk, the bearing inside the annular groove on its outer side moves eccentrically in a circular motion with the eccentric disk. The outer side of the bearing is hinged to the lugs at the ends of the lugs on both sides of the connecting plate through a pin. The eccentric displacement of the bearing drives the obliquely set connecting rod to move back and forth in a push-pull manner. The oscillating force of the connecting rod is transmitted to the slider through the universal joint. After being subjected to force, the slider slides longitudinally up and down along the guide groove. At the same time, under the rotational transmission action of the eccentric disk, the stirring shaft is driven to complete the coaxial rotation and longitudinal up and down reciprocating motion in the reaction vessel. S4: During the synchronous rotation and reciprocating up and down movement of the stirring shaft, the two sets of stirring mechanisms longitudinally sleeved on its outer side move synchronously with the stirring shaft. The upper stirring mechanism is precisely positioned below the guide slide. The mounting sleeves of both sets of stirring mechanisms are sleeved and fixedly connected to the outer side of the stirring shaft. Multiple stirring blades are arranged in a circular array around the center of the outer side of the mounting sleeve. The stirring blades have an irregular curved surface structure. Driven by the stirring shaft, all stirring blades rotate synchronously and move up and down in the reaction tank, performing all-round stirring and turning of the recycled rubber raw material in the tank until the recycled rubber raw material in the reaction tank completes the desulfurization reaction process. S5: After the desulfurization reaction of the recycled rubber is completed, the operator turns off the drive motor. After the drive motor stops running, the active pulley stops rotating, and the driven pulley stops rotating through the transmission linkage of the V-belt. The main shaft and eccentric disc stop their circumferential motion in sequence, the bearings stop their eccentric displacement, the connecting rods stop their reciprocating oscillation, the universal joints and sliders stop moving synchronously, and the rotation and reciprocating lifting and lowering of the stirring shaft also stop. The mounting sleeve on the outside of the stirring shaft and the irregular curved surface stirring blades all stop stirring. The operator then discharges the recycled rubber raw material that has completed the desulfurization reaction inside the reaction tank through the discharge pipe at the bottom of the reaction tank. After the discharge is completed, the multiple sets of connecting buckles between the tank cover and the reaction tank are released, and the tank cover is opened from the top of the reaction tank to clean the inside of the reaction tank. After cleaning, the operator resets the tank cover and re-locks it through the connecting buckles. The slider is reset to its initial position in the guide groove, and the entire device returns to its initial standby state, waiting to start the next desulfurization reaction of recycled rubber.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the transmission component can be set to convert the single rotational power into the rotation and reciprocating motion of the stirring shaft, breaking the limitation of the traditional single stirring trajectory. It can effectively reach the material accumulated at the bottom of the reaction device, avoid the material from forming a dense accumulation layer due to gravity, ensure the uniformity of material contact with the desulfurization medium, provide support for full desulfurization from the transmission level, and the transmission structure is stable and smooth, without the need for complex electrical control or hydraulic drive, reducing equipment cost and maintenance difficulty. 2. In this invention, the set stirring components can drive the stirring blades to simultaneously stir materials at different heights through compound motion, expand the stirring coverage, eliminate stirring dead corners, and the irregular curved surface stirring blades can increase the contact area with the materials, enhance the turning and pushing force, efficiently disperse the bottom accumulated materials, promote the full mixing of materials with the desulfurization medium, and ensure uniform heating, avoiding local overheating and carbonization or incomplete desulfurization, thus ensuring the quality of recycled rubber products. At the same time, the structure is simple and adaptable to the needs of large-scale and low-cost production. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the reaction vessel and lid of the present invention; Figure 3 This is a schematic diagram of the structure of the transmission component of the present invention; Figure 4 This is an exploded view of the structure of the driving component of the present invention; Figure 5 This is an exploded view of the transmission component of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 This is a partial cross-sectional view of the stirring assembly of the present invention.
[0016] In the diagram: 1. Reaction vessel; 2. Vessel lid; 3. Feed hopper; 4. Connecting buckle; 5. Drive assembly; 51. Drive motor; 52. Drive pulley; 53. Driven pulley; 54. V-belt; 55. Main shaft; 6. Transmission assembly; 61. Eccentric disc; 62. Connecting hole; 63. Annular groove; 64. Bearing; 65. Connecting rod; 66. Connecting plate; 67. Ear plate; 68. Ear seat; 69. Universal joint; 610. Slider; 7. Stirring assembly; 71. Stirring shaft; 72. Guide groove; 73. Stirring mechanism; 731. Mounting sleeve; 732. Stirring blade. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0019] Please see Figures 1-7 The present invention provides a technical solution: A temperature-controlled desulfurization reactor for recycled rubber and its method of use include a reaction tank 1 and a matching tank cover 2. A feed hopper 3 is connected to one side of the top of the tank cover 2. The reaction tank 1 and the tank cover 2 are connected by multiple sets of circumferentially arranged connecting buckles 4. A drive assembly 5 is located on the side of the tank cover 2 away from the feed hopper 3. A transmission assembly 6 is located below the tank cover 2. A stirring assembly 7 is located below the transmission assembly 6. The transmission assembly 6 includes an eccentric disc 61. A connecting hole 62 is opened on the side of the eccentric disc 61 that is off-center from its geometric center. An annular groove 63 is provided on the outer side of the disc 61. A bearing 64 is fitted on the outer side of the annular groove 63. A connecting rod 65 is provided diagonally below the bearing 64. A connecting plate 66 is fixedly connected to the top of the connecting rod 65. Ear plates 67 are symmetrically and fixedly connected to both ends of the connecting plate 66 near the bearing 64. An ear seat 68 is fixedly connected to the end of the ear plate 67 away from the connecting plate 66. The ear seat 68 is hinged to the outer side of the bearing 64 by a pin. A universal joint 69 is connected to the bottom end of the connecting rod 65, and a slider 610 is fixedly connected to the bottom end of the universal joint 69.
[0020] It should be noted that: the reaction tank 1 provides a sealed reaction chamber for the desulfurization reaction of recycled rubber. The tank cover 2 is connected to the reaction tank 1 by the connecting buckle 4, which can realize quick opening and closing and sealing and fixation, ensuring the sealing of the reaction operation. The feed hopper 3 provides a channel for the input of reaction raw materials. The drive component 5 provides a power source for the operation of the entire device. The transmission component 6 receives the power and completes the conversion of the motion mode. The stirring component 7 stirs the raw materials in the reaction tank 1. All components work together to complete the desulfurization reaction process. Furthermore: the eccentric disk 61 is fixed to the main shaft 55 through the connecting hole 62, and can rotate synchronously with the main shaft 55 and make eccentric movements. The annular groove 63 provides installation and movement space for the bearing 64, and the bearing 64 can rotate flexibly in the annular groove 63. The lug 68 is hinged to the outside of the bearing 64 through the pin, and can be adjusted to accommodate the eccentric displacement of the bearing 64. The connecting rod 65 is connected to the slider 610 through the universal joint 69, which can convert the rotational force of the eccentric disk 61 into the longitudinal sliding force of the slider 610, so as to realize the stable transmission of power. As a further implementation of this solution, the drive assembly 5 includes a drive motor 51 fixedly connected to the top of the tank cover 2 away from the feed hopper 3 via a mounting plate. The bottom output end of the drive motor 51 is fixedly connected to a drive pulley 52. A driven pulley 53 is provided on the side of the drive pulley 52 near the feed hopper 3. The drive pulley 52 and the driven pulley 53 are connected by a V-belt 54. The driven pulley 53 is coaxially arranged with the tank cover 2. A main shaft 55 is fixedly connected to the bottom center of the driven pulley 53. The bottom end of the main shaft 55 passes through the tank cover 2 and extends to the bottom of the tank cover 2. The connecting hole 62 is adapted to the bottom end of the main shaft 55, and the bottom end of the main shaft 55 is inserted and fixed in the connecting hole 62. It should be noted that: the drive motor 51 is firmly fixed to the top of the can cover 2 by the mounting plate, providing stable driving power for the device. The drive pulley 52 and the driven pulley 53 are driven by a V-belt 54, which has high transmission efficiency and strong transmission stability. The driven pulley 53 drives the coaxial main shaft 55 to rotate synchronously. The main shaft 55 passes through the can cover 2 and is fixed to the eccentric disc 61, which can accurately transmit the power of the drive motor 51 to the transmission component 6, ensuring the stable operation of the transmission component 6. As a further implementation of this solution, the stirring assembly 7 includes a stirring shaft 71 disposed below the eccentric disc 61. The stirring shaft 71 is coaxially disposed with the main shaft 55. A guide groove 72 is provided on the upper outer side of the stirring shaft 71. The guide groove 72 is T-shaped. The slider 610 is T-shaped to fit the guide groove 72. The slider 610 is longitudinally slidably connected to the guide groove 72. It should be noted that the stirring shaft 71 is coaxially set with the main shaft 55, and can complete the rotation and vertical lifting actions simultaneously. The T-shaped guide groove 72 is adapted to engage with the slider 610, which not only provides the vertical sliding trajectory for the slider 610, but also prevents the slider 610 from falling off or deviating. The vertical sliding of the slider 610 in the guide groove 72 can drive the stirring shaft 71 to move up and down synchronously. Combined with the rotation action, the stirring shaft 71 achieves a compound motion, which improves the coverage of the stirring operation. As a further implementation of this solution, two sets of stirring mechanisms 73 are longitudinally sleeved on the outer side of the stirring shaft 71. The upper stirring mechanism 73 is located below the guide groove 72. The stirring mechanism 73 includes multiple mounting sleeves 731 and multiple stirring blades 732. The mounting sleeves 731 are sleeved and fixedly connected to the outer side of the stirring shaft 71. One end of each of the multiple stirring blades 732 is fixedly connected to the outer side of the mounting sleeves 731. The stirring blades 732 are irregularly shaped curved surfaces, and the multiple stirring blades 732 are arranged in a circular array with the center of the mounting sleeves 731 as the center. It should be noted that: the two sets of stirring mechanisms 73 are longitudinally distributed on the outside of the stirring shaft 71, which can simultaneously stir the raw materials at different heights in the reaction tank 1. The mounting sleeve 731 provides a stable mounting base for the stirring blades 732, ensuring the stirring stability of the stirring blades 732. The irregularly shaped curved stirring blades 732 are arranged in a circumferential array, which can increase the contact area with the raw materials. During stirring, they can form a turning and pushing force on the raw materials, making the raw materials more fully mixed and improving the uniformity and efficiency of the desulfurization reaction.
[0021] Working process: When the temperature-controlled reclaimed rubber desulfurization reaction device is in the initial standby state, the tank cover 2 and the reaction tank 1 are tightly connected by multiple sets of circumferentially distributed connecting buckles 4 to achieve the sealing of the reaction chamber. The feed hopper 3 at the top of the tank cover 2 is in a closed state to prevent external impurities from entering. At this time, the drive motor 51 of the drive component 5 is not started, the active pulley 52, the driven pulley 53 and the main shaft 55 are all stationary, the eccentric disc 61 of the transmission component 6 is stationary with the main shaft 55 in the initial position, the bearing 64 in the annular groove 63 has no displacement, the lug 68 is stably hinged to the outside of the bearing 64 through the pin, the connecting rod 65 is in a vertical stationary state, the universal joint 69 at its bottom end and the slider 610 are not moving, the T-shaped slider 610 is fitted into the T-shaped guide groove 72 on the upper part of the stirring shaft 71, the stirring shaft 71 and the main shaft 55 are coaxial and stationary, the two sets of stirring mechanisms 73 on its outer side are also completely stationary, the inside of the reaction tank 1 is empty, waiting for the desulfurization reaction to start; When a desulfurization reaction of recycled rubber needs to be carried out, the operator first opens the feed hopper 3 at the top of the tank cover 2 and slowly feeds the recycled rubber raw material to be desulfurized into the inner cavity of the reaction tank 1 through the feed hopper 3. After the raw material is fed in the preset amount, the feed hopper 3 is closed to ensure the airtightness of the inside of the reaction tank 1 and to prevent heat and gas leakage during the reaction. Then, the drive motor 51 in the drive assembly 5, which is fixed to the top of the tank cover 2 by the mounting plate, is started. The bottom output end of the drive motor 51 starts to rotate, driving the drive pulley 52 fixed at its end to rotate synchronously. The drive pulley 52 transmits power through the V-belt 54 sleeved on the outside, driving the driven pulley 53 on the same side to rotate synchronously. Since the driven pulley 53 is coaxial with the can cover 2, the main shaft 55 fixedly connected at the bottom center rotates synchronously with the driven pulley 53. The bottom end of the main shaft 55 passes through the can cover 2 and extends to the bottom of the can cover 2. The bottom end of the main shaft 55 is fitted and inserted into the connection hole 62 of the eccentric disc 61, thereby driving the eccentric disc 61 to rotate synchronously, completing the precise transmission of power from the drive component 5 to the transmission component 6. During the rotation of the eccentric disk 61, the bearing 64 inside the annular groove 63 on its outer side undergoes eccentric circular motion with the eccentric disk 61. The lug 68 is hinged to the outer side of the bearing 64 via a pin. This hinge structure can flexibly adapt to the eccentric displacement of the bearing 64 for angle adjustment, avoiding jamming during transmission. The eccentric displacement of the bearing 64 drives the obliquely arranged connecting rod 65 to perform a push-pull reciprocating swing synchronously. The bottom end of the connecting rod 65 is fixedly connected to the slider 610 via a universal joint 69. The universal joint 69 can eliminate the need for the connecting rod 65 to move. The angular deviation between the swing and the sliding of the slider 610 ensures the smooth transmission of power. Since the slider 610 is T-shaped and longitudinally connected to the T-shaped guide groove 72 on the upper part of the stirring shaft 71, after the slider 610 is subjected to force by the connecting rod 65, it will slide vertically up and down along the guide groove 72. At the same time, under the transmission action of the continuous rotation of the eccentric disk 61, the stirring shaft 71 is driven to complete the coaxial rotation and longitudinal reciprocating up and down motion in the reaction tank 1, forming a compound stirring motion trajectory, which greatly improves the stirring coverage area. During the synchronous rotation and reciprocating up and down movement of the stirring shaft 71, two sets of stirring mechanisms 73 longitudinally sleeved on its outer side move synchronously with the stirring shaft 71. The upper stirring mechanism 73 is precisely positioned below the guide groove 72. The two sets of stirring mechanisms 73 can simultaneously stir the recycled rubber raw materials at different heights in the reaction tank 1, avoiding the formation of stirring dead zones. The mounting sleeves 731 of the two sets of stirring mechanisms 73 are both sleeved and fixedly connected to the outer side of the stirring shaft 71, providing a stable mounting base for the stirring blades 732 and ensuring that the stirring blades 732 do not loosen or shift during high-speed stirring. Multiple stirring blades 732 are arranged in a circular array around the center of the mounting sleeve 731, and the stirring blades 732 are set with irregular curved surfaces. This structure can increase the contact area with the raw materials, and can form a stronger tumbling and pushing force on the raw materials during stirring, so that the recycled rubber raw materials in the reaction tank 1 are fully mixed and heated evenly, effectively improving the uniformity and efficiency of the desulfurization reaction. After the desulfurization reaction of the recycled rubber is completed according to the preset process, the operator turns off the drive motor 51. After the drive motor 51 stops running, the driving pulley 52, the driven pulley 53, and the main shaft 55 stop rotating in sequence. The eccentric disk 61 stops its circumferential motion, the bearing 64 stops its eccentric displacement, the connecting rod 65 stops its reciprocating oscillation, the universal joint 69 and the slider 610 stop moving synchronously, and the rotation and reciprocating lifting and lowering of the stirring shaft 71 also stop. The mounting sleeve 731 on the outside of the stirring shaft 71 and the irregular curved surface stirring blade 732 all stop stirring. Then the operator passes through the reaction tank. The discharge pipe at the bottom discharges the recycled rubber raw material that has completed the desulfurization reaction inside the reaction tank 1. After the discharge is completed, the operator unfastens the multiple sets of connecting buckles 4 between the tank cover 2 and the reaction tank 1, opens the tank cover 2 from the top of the reaction tank 1, performs a simple cleaning of the inside of the reaction tank 1 and the stirring assembly 7 to remove residual raw material impurities, and then resets the tank cover 2 and re-locks it with the reaction tank 1 through the connecting buckles 4. The slider 610 returns to its initial position in the guide groove 72 under the action of gravity, and the entire device returns to the initial standby state, waiting to carry out the next recycled rubber desulfurization reaction operation.
[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A temperature-controlled desulfurization reaction device for recycled rubber, comprising a reaction vessel (1) and a matching vessel cover (2), characterized in that: The top side of the lid (2) is connected to the feed hopper (3). The reaction vessel (1) and the lid (2) are connected by multiple sets of circumferentially distributed connecting buckles (4). A drive assembly (5) is provided on the side of the lid (2) away from the feed hopper (3). A transmission assembly (6) is provided below the lid (2). A stirring assembly (7) is provided below the transmission assembly (6). The transmission assembly (6) includes an eccentric disk (61), a connecting hole (62) is provided on the side of the eccentric disk (61) that is off from the geometric center, an annular groove (63) is provided on the outer side of the eccentric disk (61), a bearing (64) is sleeved on the outer side of the annular groove (63), a connecting rod (65) is provided on the lower side of the bearing (64), a connecting plate (66) is fixedly connected to the top end of the connecting rod (65), ear plates (67) are symmetrically and fixedly connected to the two ends of the connecting plate (66) near the bearing (64), an ear seat (68) is fixedly connected to the end of the ear plate (67) away from the connecting plate (66), the ear seat (68) is hinged to the outer side of the bearing (64) by a pin, a universal joint (69) is connected to the bottom end of the connecting rod (65), and a slider (610) is fixedly connected to the bottom end of the universal joint (69).
2. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 1, characterized in that: The drive assembly (5) includes a drive motor (51) fixedly connected to the top of the can cover (2) away from the feed hopper (3) via a mounting plate. The bottom output end of the drive motor (51) is fixedly connected to a drive pulley (52), and the drive pulley (52) is provided with a driven pulley (53) on the side of the drive pulley (52) close to the feed hopper (3).
3. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 2, characterized in that: The driving pulley (52) and the driven pulley (53) are connected by a V-belt (54). The driven pulley (53) is coaxially arranged with the can lid (2). A main shaft (55) is fixedly connected to the bottom center of the driven pulley (53).
4. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 3, characterized in that: The bottom end of the main shaft (55) passes through the can cover (2) and extends to the bottom of the can cover (2). The connecting hole (62) is adapted to the bottom end of the main shaft (55), and the bottom end of the main shaft (55) is inserted and fixed in the connecting hole (62).
5. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 1, characterized in that: The stirring assembly (7) includes a stirring shaft (71) disposed below the eccentric disk (61). The stirring shaft (71) is coaxially disposed with the main shaft (55), and a guide groove (72) is provided on the upper outer side of the stirring shaft (71).
6. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 5, characterized in that: The guide groove (72) is T-shaped, and the slider (610) is T-shaped to fit the guide groove (72). The slider (610) is longitudinally slidably connected to the guide groove (72).
7. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 5, characterized in that: Two sets of stirring mechanisms (73) are longitudinally sleeved on the outer side of the stirring shaft (71). The upper stirring mechanism (73) is located below the guide slide (72). The stirring mechanism (73) includes multiple mounting sleeves (731) and multiple stirring blades (732).
8. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 7, characterized in that: The mounting sleeve (731) is fitted and fixedly connected to the outside of the stirring shaft (71), and one end of each of the plurality of stirring blades (732) is fixedly connected to the outside of the mounting sleeve (731).
9. The temperature-controlled desulfurization reaction device for recycled rubber according to claim 8, characterized in that: The stirring blades (732) are irregularly shaped curved surfaces, and multiple stirring blades (732) are arranged in a circular array with the center of the mounting sleeve (731) as the center.
10. A method of using a temperature-controlled desulfurization reactor for reclaimed rubber according to any one of claims 1-9, characterized in that: S1: When the temperature-controlled reclaimed rubber desulfurization reactor is in its initial standby state, the tank cover (2) and the reaction tank (1) are sealed by multiple sets of circumferentially distributed connecting buckles (4). The feed hopper (3) on one side of the top of the tank cover (2) is closed. The drive assembly (5) is not running. The drive motor (51) remains stationary. The driving pulley (52) and the driven pulley (53) do not rotate. The main shaft (55) at the bottom center of the driven pulley (53) is stationary. The eccentric disc (61) fixed at the bottom of the main shaft (55) is in the same position. The step remains stationary, the bearing (64) in the annular groove (63) on the outside of the eccentric disk (61) has no displacement, the connecting rod (65) is in the initial stationary position, the universal joint (69) at the bottom of the connecting rod (65) and the slider (610) are not moving, the slider (610) is fitted into the guide groove (72) on the upper part of the stirring shaft (71), the stirring shaft (71) and the main shaft (55) remain coaxial and stationary, the two sets of stirring mechanisms (73) on the outside of the stirring shaft (71) are also in a completely stationary state, the inside of the reaction tank (1) is in an empty state, waiting for the desulfurization reaction to start; S2: When desulfurization reaction processing of recycled rubber is required, the operator first opens the feed hopper (3) at the top of the tank cover (2) and puts the recycled rubber raw material to be desulfurized into the inner cavity of the reaction tank (1) through the feed hopper (3). After the rubber raw material is put in the required amount, the feed hopper (3) is closed to ensure the airtightness of the reaction tank (1). Then, the drive motor (51) in the drive assembly (5) is fixed to the top of the tank cover (2) by the mounting plate. The bottom output end of the drive motor (51) rotates and drives the active pulley (52) fixed at its end to rotate synchronously. The diameter of the active pulley (52) is smaller than that of the driven pulley. The two wheels (53) form a first-level reduction transmission. The driving pulley (52) is driven by the outer V-belt (54) to drive the driven pulley (53) on the same side to rotate synchronously. The driven pulley (53) and the can cover (2) are coaxially arranged. The main shaft (55) fixedly connected at the bottom center rotates synchronously with the driven pulley (53). The bottom end of the main shaft (55) passes through the can cover (2) and extends to the bottom of the can cover (2). The bottom end of the main shaft (55) is inserted and fixed in the connecting hole (62) on the side of the eccentric disk (61) that is off from the geometric center, thereby driving the eccentric disk (61) to rotate synchronously. S3: During the rotation of the eccentric disk (61), the bearing (64) inside the annular groove (63) on its outer side moves eccentrically with the eccentric disk (61). The outer side of the bearing (64) is hinged to the ear seat (68) at the end of the ear plate (67) on both sides of the connecting plate (66) through the pin. The eccentric displacement of the bearing (64) drives the inclined connecting rod (65) to move back and forth in a push-pull manner. The swing force of the connecting rod (65) is transmitted to the slider (610) through the universal joint (69). After being subjected to force, the slider (610) slides up and down longitudinally along the guide groove (72). At the same time, it is driven by the rotational transmission of the eccentric disk (61) to drive the stirring shaft (71) to complete the coaxial rotation and longitudinal up and down reciprocating motion in the reaction tank (1). S4: During the synchronous rotation and reciprocating up and down movement of the stirring shaft (71), the two sets of stirring mechanisms (73) longitudinally sleeved on its outer side move synchronously with the stirring shaft (71). The stirring mechanism (73) located above is precisely positioned below the guide slide (72). The mounting sleeves (731) of the two sets of stirring mechanisms (73) are both sleeved and fixedly connected to the outer side of the stirring shaft (71). Multiple stirring blades (732) are arranged in a circular array around the center of the mounting sleeve (731). The stirring blades (732) are irregular curved surface structures. Driven by the stirring shaft (71), all stirring blades (732) rotate synchronously and move up and down in the reaction tank (1) to carry out all-round stirring and turning of the recycled rubber raw material in the tank until the recycled rubber raw material in the reaction tank (1) completes the desulfurization reaction process. S5: After the desulfurization reaction of the recycled rubber is completed, the operator turns off the drive motor (51). After the drive motor (51) stops running, the drive pulley (52) stops rotating, and the driven pulley (53) stops rotating through the transmission linkage of the V-belt (54). The main shaft (55) and the eccentric disk (61) stop their circumferential motion in sequence, the bearing (64) stops its eccentric displacement, the connecting rod (65) stops its reciprocating swing, the universal joint (69) and the slider (610) stop their movement synchronously, and the rotation and up-and-down reciprocating motion of the stirring shaft (71) also stop. The mounting sleeve (731) on the outside of the stirring shaft (71) and the irregular curved surface stirring paddle Ye (732) stopped stirring. The operator then discharged the desulfurized rubber raw material inside the reaction tank (1) through the discharge pipe at the bottom of the reaction tank (1). After the discharge was completed, the multiple sets of connecting buckles (4) between the tank cover (2) and the reaction tank (1) were untied. The tank cover (2) was opened from the top of the reaction tank (1) and the inside of the reaction tank (1) was cleaned. After the cleaning was completed, the operator reset the tank cover (2) and re-locked it through the connecting buckles (4). The slider (610) was reset to the initial position in the guide groove (72). The entire device returned to the initial standby state and waited to carry out the next desulfurization reaction of the regenerated rubber.