Intelligent stirring and dispersing device of high-temperature pyrolysis furnace

Abstract

This utility model relates to the field of high-temperature pyrolysis furnace processing technology, and discloses an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace, comprising: a support assembly, on which a rectangular crucible is fixedly connected to the inner side of the support assembly; a planetary stirring and dispersing assembly, comprising: a fixed bushing, fixedly connected to the inside of a tank cover assembly; and a rotating shaft, rotatably connected to the fixed bushing, with a limiting plate fixedly sleeved on the top surface of the rotating shaft. This utility model device uses an explosion-proof motor to drive the rotating shaft, which in turn drives a rotating gear to mesh with a fixed rack, enabling the stirring rod to synchronously achieve rotation and lateral reciprocating motion, forming a "planetary" composite trajectory covering the entire area of ​​the rectangular crucible. Compared with traditional single-axial stirring, it can eliminate the stirring blind zone at the edge and bottom of the furnace, ensuring uniform force on granular materials and improving the sufficiency of the pyrolysis reaction and product quality.

Description

Technical Field

[0001] This utility model relates to the field of high-temperature pyrolysis furnace processing, and in particular to an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace. Background Technology

[0002] Currently, high-temperature pyrolysis furnaces, as core equipment in the chemical and energy fields, are mainly used to achieve pyrolysis reactions of materials under high-temperature environments. The performance of their stirring and dispersing devices directly affects the reaction efficiency and product uniformity. In existing technologies, traditional stirring devices generally adopt a single-axial rotating impeller structure, with a fixed stirring angle and a lack of dynamic variation, leading to the following technical bottlenecks:

[0003] Traditional agitators rotate only in one direction around their central axis, and their movement trajectory is limited to a fixed plane, making it difficult to cover the entire area inside the pyrolysis furnace. For granular materials, this can easily create blind spots at the furnace edges or bottom, leading to localized overheating or incomplete pyrolysis, which affects product quality and yield.

[0004] Based on this, we propose an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace. Utility Model Content

[0005] To address the technical problem of the limited stirring angle in existing equipment, this invention provides an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace.

[0006] This utility model is achieved by the following technical solution: an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace, comprising: a support assembly, a rectangular crucible fixedly connected to the inner side of the support of the support assembly, and a groove cover assembly covering the open end of the rectangular crucible.

[0007] The asteroid stirring and dispersing assembly includes: a fixed bushing, which is fixedly connected to the inside of the tank cover assembly; and a rotating shaft, which is rotatably connected to the fixed bushing, with a limiting plate fixedly sleeved on the top surface of the rotating shaft.

[0008] A rotating gear is fitted onto the surface of a rotating shaft, and a connecting shaft is fixedly connected to the bottom end of the rotating shaft.

[0009] Main motion of the rotating shaft: The explosion-proof motor drives the rotating shaft to rotate clockwise through the reducer, which drives the rotating gear sleeved on its surface to rotate. The rotating gear meshes with the fixed rack fixed inside the bracket assembly. Since the fixed rack is stationary, the rotating gear moves in a straight line along the straight trajectory of the fixed rack while rotating.

[0010] It also includes a heat insulation component, which includes a first rectangular small aluminosilicate ceramic fiber blanket covering the connection between the tank cover assembly and the rectangular crucible, a circular small aluminosilicate ceramic fiber blanket covering the outer surface of the tank cover assembly, and a second rectangular small aluminosilicate ceramic fiber blanket covering the edge surface of the rectangular crucible.

[0011] A shock-absorbing seat is fixedly connected to the bottom of the support assembly, and a left roller bracket and a right roller bracket are fixedly connected to the top of the support assembly. An explosion-proof motor is fixedly connected to the top of the tank cover assembly. The output shaft of the explosion-proof motor is connected to the bottom of the rotating shaft via a reducer. A stirring rod is fixedly connected to the bottom of the connecting shaft, and the stirring rod is located inside the rectangular crucible.

[0012] The top of the bracket assembly is fixedly connected to a drag chain mating assembly, and a drag chain support plate is attached above the drag chain mating assembly. The drag chain support plate is fixedly connected to the asteroid stirring and dispersing assembly.

[0013] A fixed rack is fixedly connected between the slot cover assemblies, and the fixed rack meshes with a rotating gear for transmission. Rollers are movably connected to the inner sides of the left and right roller brackets. The rollers are movably connected to the bottom of the bracket assembly through bearings and are supported at the bottom end of the first rectangular small aluminosilicate ceramic fiber blanket.

[0014] As a further optimization of this utility model, the rotating gear is movably connected to the rotating shaft through the connecting shaft. When it revolves, it drives the stirring rod to perform a superposition of lateral reciprocating motion and rotation, so that the stirring range covers the entire area of ​​the rectangular crucible, eliminating the blind spot of traditional single axial stirring.

[0015] As a further optimization of this utility model, both the circular small aluminosilicate ceramic fiber blanket and the second rectangular small aluminosilicate ceramic fiber blanket are attached to the surface of the corresponding component by means of high-temperature resistant adhesive; the first rectangular small aluminosilicate ceramic fiber blanket is movably overlapped on the roller.

[0016] As a further optimization of this utility model, a first rectangular small aluminosilicate ceramic fiber blanket covers the connection between the trough cover assembly and the rectangular crucible to block the upward conduction of high temperature; a circular small aluminosilicate ceramic fiber blanket wraps the top surface of the trough cover assembly to isolate high temperature radiation; and a second rectangular small aluminosilicate ceramic fiber blanket covers the edge of the rectangular crucible to reduce lateral heat loss.

[0017] As a further optimization of this utility model, the cable chain assembly and cable chain support plate house the power cord of the explosion-proof motor, preventing the cable from contacting high-temperature components and ensuring safety.

[0018] As a further optimization of this utility model, a lifting eye screw is also fixedly connected to the top edge of the support assembly. The lifting eye screw is used to suspend the intelligent stirring and dispersing device. The support assembly is suspended above the high-temperature pyrolysis furnace by the lifting eye screw, and the shock-absorbing seat absorbs the vibration during the stirring process, improving stability.

[0019] As a further optimization of this utility model, the shock-absorbing seat at the bottom of the bracket assembly forms a support structure with the roller, and together with the drag chain support plate, the transmission components such as the explosion-proof motor are placed in a low-temperature zone. The normal temperature environment is maintained by air convection and heat insulation materials to avoid high temperature affecting the mechanical transmission accuracy.

[0020] As a further optimization of this utility model, the speed and direction of the explosion-proof motor are precisely adjusted by a preset program, and the stirring frequency of the rotating shaft and the revolution period of the rotating gear are controlled to achieve intermittent vortex stirring, which not only strengthens material mixing, but also facilitates the orderly discharge of pyrolysis gas.

[0021] As a further optimization of this utility model, a built-in temperature sensor monitors the temperature of the material inside the rectangular crucible in real time and feeds it back to the PLC system to automatically adjust the stirring speed, so as to avoid local overheating and coking.

[0022] As a further optimization of this utility model, the pyrolysis tail gas and feed exchange heat in opposite directions in the heat exchanger. The device recovers the heat generated by high-temperature pyrolysis through heat exchange design and uses it to preheat the feed or other process steps, thereby reducing the overall energy consumption.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model device uses an explosion-proof motor to drive a rotating shaft, which in turn drives a rotating gear to mesh with a fixed rack, enabling the stirring rod to simultaneously rotate and reciprocate laterally, forming a "planetary" composite trajectory that covers the entire area of ​​the rectangular crucible. Compared with traditional single-axial stirring, it can eliminate the stirring blind spots at the edges and bottom of the furnace, ensuring that granular materials are uniformly stressed, thereby improving the sufficiency of the pyrolysis reaction and the quality of the products.

[0025] 2. This invention utilizes a multi-layered aluminosilicate ceramic fiber blanket to form a heat insulation system, blocking the conduction of high temperature to the transmission components and placing mechanical parts such as the explosion-proof motor in a normal temperature environment. This structure maintains the pyrolysis chamber at a high temperature of 1500℃ while avoiding thermal damage to the transmission system, ensuring the stability and control accuracy of the stirring motion, and extending the service life of the equipment.

[0026] 3. This utility model's PLC program precisely adjusts the stirring frequency and trajectory, combined with real-time feedback from a temperature sensor, dynamically adjusting the stirring speed to adapt to material characteristics and prevent localized overheating and coking. Simultaneously, the waste heat from the pyrolysis exhaust gas preheats the feed through a heat exchange system, reducing energy consumption. This design achieves "intelligent stirring + closed-loop energy management," which shortens the reaction cycle and reduces carbon emissions compared to traditional processes. Attached Figure Description

[0027] Figure 1 This is a front view of the entire machine of this utility model;

[0028] Figure 2 This is a side view of the overall structure of the present invention;

[0029] Figure 3 This is a top view of the overall structure of this utility model;

[0030] Figure 4 This is a schematic diagram of the connection structure of the asteroid stirring and dispersing assembly of this utility model;

[0031] Figure 5 This is a schematic diagram of the fixed rack and pinion connection structure of this utility model.

[0032] Explanation of key symbols:

[0033] 1. Support assembly; 2. Rectangular crucible; 3. Tank cover assembly; 4. Asteroid stirring and dispersing assembly; 41. Fixed bushing; 42. Limiting plate; 43. Rotating shaft; 44. Rotating gear; 45. Connecting shaft; 5. First rectangular small aluminosilicate ceramic fiber blanket; 6. Circular small aluminosilicate ceramic fiber blanket; 7. Second rectangular small aluminosilicate ceramic fiber blanket; 8. Lifting eye screw; 9. Roller; 10. Vibration damping seat; 11. Roller bracket right; 12. Roller bracket left; 13. Explosion-proof motor; 14. Cable chain mating assembly; 15. Cable chain support plate; 16. Fixed rack. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0035] Example 1:

[0036] Please combine Figures 1-5 This embodiment proposes an intelligent stirring and dispersing device for a high-temperature pyrolysis furnace, including: a support assembly 1, a rectangular crucible 2 fixedly connected to the inner side of the support of the support assembly 1, and a groove cover assembly 3 covering the open end of the rectangular crucible 2.

[0037] Asteroid stirring and dispersing assembly 4, which includes:

[0038] Fixed bushing 41, fixed bushing 41 is fixedly connected to the inside of the groove cover assembly 3;

[0039] A rotating shaft 43 is rotatably connected to a fixed bushing 41, and a limiting plate 42 is fixedly sleeved on the top surface of the rotating shaft 43.

[0040] Rotating gear 44 is sleeved on the surface of rotating shaft 43, and a connecting shaft 45 is fixedly connected to the bottom end of rotating shaft 43.

[0041] More specifically, the main motion of the rotating shaft 43 is as follows: the explosion-proof motor 13 drives the rotating shaft 43 to rotate clockwise through the reducer, which drives the rotating gear 44 sleeved on its surface to rotate; the rotating gear 44 meshes with the fixed rack 16 fixed inside the bracket assembly 1. Since the fixed rack 16 is stationary, the rotating gear 44 rotates while moving in a straight line along the straight trajectory of the fixed rack 16.

[0042] The rotating gear 44 is movably connected to the rotating shaft 43 via the connecting shaft 45. When it revolves, it drives the stirring rod 71 to perform a superposition of transverse reciprocating motion and rotation, so that the stirring range covers the entire area of ​​the rectangular crucible 2, eliminating the blind spot of traditional single axial stirring.

[0043] It also includes a heat insulation component, which includes a first rectangular small aluminosilicate ceramic fiber blanket 5 covering the connection between the trough cover assembly 3 and the rectangular crucible 2, a circular small aluminosilicate ceramic fiber blanket 6 covering the outer surface of the trough cover assembly 3, and a second rectangular small aluminosilicate ceramic fiber blanket 7 covering the edge surface of the rectangular crucible 2.

[0044] It should be noted that the circular small aluminosilicate ceramic fiber blanket 6 and the second rectangular small aluminosilicate ceramic fiber blanket 7 are both attached to the surface of the corresponding component by high-temperature resistant adhesive; the first rectangular small aluminosilicate ceramic fiber blanket 5 is movably overlapped on the roller 9.

[0045] A further technical solution is to cover the connection between the trough cover assembly 3 and the rectangular crucible 2 with a first rectangular small aluminosilicate ceramic fiber blanket 5 to block the upward conduction of high temperature;

[0046] A circular small aluminosilicate ceramic fiber blanket 6 wraps the top surface of the groove cover assembly 3 to isolate high-temperature radiation;

[0047] The second rectangular aluminosilicate ceramic fiber blanket 7 covers the edge of the rectangular crucible 2 to reduce lateral heat loss;

[0048] A shock-absorbing seat 10 is fixedly connected to the bottom of the support assembly 1, and a left roller bracket 12 and a right roller bracket 11 are fixedly connected to the top of the support assembly 1. An explosion-proof motor 13 is fixedly connected to the top of the tank cover assembly 3. The output shaft of the explosion-proof motor 13 is connected to the bottom of the rotating shaft 43 via a reducer. A stirring rod 71 is fixedly connected to the bottom of the connecting shaft 45, and the stirring rod 71 is located inside the rectangular crucible 2.

[0049] The top of the bracket assembly 1 is fixedly connected to the drag chain mating assembly 14, and the drag chain support plate 15 is attached above the drag chain mating assembly 14. The drag chain support plate 15 is fixedly connected to the asteroid stirring and dispersing assembly 4. The drag chain mating assembly 14 and the drag chain support plate 15 house the power cord of the explosion-proof motor 13, preventing the cable from contacting high-temperature components and ensuring safety.

[0050] A fixed rack 16 is fixedly connected between the slot cover assembly 3, and the fixed rack 16 meshes with the rotating gear 44 for transmission.

[0051] Furthermore, a lifting eye screw 8 is fixedly connected to the top edge of the support assembly 1. The lifting eye screw 8 is used to suspend the intelligent stirring and dispersing device. The support assembly 1 is suspended above the high-temperature pyrolysis furnace by the lifting eye screw 8, and the shock-absorbing seat 10 absorbs the vibration during the stirring process, improving stability.

[0052] Rollers 9 are movably connected to the inner sides of the left roller bracket 12 and the right roller bracket 11. Rollers 9 are movably connected to the bottom of the bracket assembly 1 via bearings and are supported at the bottom end of the first rectangular small aluminosilicate ceramic fiber blanket 5. The shock-absorbing seat 10 at the bottom of the bracket assembly 1 and roller 9 form a support structure. Together with the drag chain support plate 15, the transmission components such as the explosion-proof motor 13 are placed in a low-temperature zone. The normal temperature environment is maintained by air convection and heat insulation materials to avoid high temperature affecting the mechanical transmission accuracy.

[0053] Working principle of the overall technical structure of this utility model:

[0054] Compound motion mixing principle

[0055] The device achieves three-dimensional mixing through a combination of planetary reduction gear and linear motion transmission.

[0056] Main motion of rotating shaft 43: Explosion-proof motor 13 drives rotating shaft 43 to rotate clockwise through reducer, which drives rotating gear 44 sleeved on its surface to rotate.

[0057] Planetary gear transmission: Rotating gear 44 meshes with fixed rack 16 fixed inside the bracket assembly 1. Since the fixed rack 16 is stationary, rotating gear 44 rotates while moving in a straight line along the straight trajectory of the fixed rack 16.

[0058] Extended stirring trajectory: The rotating gear 44 is movably connected to the rotating shaft 43 via the connecting shaft 45. When it revolves, it drives the stirring rod 71 to perform a superposition of lateral reciprocating motion and rotation, so that the stirring range covers the entire area of ​​the rectangular crucible 2, eliminating the blind spot of traditional single-axial stirring.

[0059] High-temperature and room-temperature dual-zone isolation principle

[0060] The device achieves temperature isolation in the working area through multiple thermal insulation components:

[0061] Insulation layer distribution:

[0062] The first rectangular aluminosilicate ceramic fiber blanket 5 covers the connection between the trough cover assembly 3 and the rectangular crucible 2, blocking the upward conduction of high temperature;

[0063] A circular small aluminosilicate ceramic fiber blanket 6 wraps the top surface of the groove cover assembly 3 to isolate high-temperature radiation;

[0064] The second rectangular aluminosilicate ceramic fiber blanket 7 covers the edge of the rectangular crucible 2 to reduce lateral heat loss;

[0065] Transmission system cooling: The shock-absorbing seat 10 at the bottom of the bracket assembly 1 and the roller 9 form a support structure. Together with the drag chain support plate 15, the transmission components such as the explosion-proof motor 13 are placed in a low-temperature zone. The normal temperature environment is maintained by air convection and heat insulation materials to avoid high temperature affecting the mechanical transmission accuracy.

[0066] Intelligent control and energy management principles

[0067] PLC program control: The speed and direction of the explosion-proof motor 13 are precisely adjusted through a preset program, and the stirring frequency of the rotating shaft 43 and the revolution cycle of the rotating gear 44 are controlled to achieve intermittent vortex stirring, which not only strengthens material mixing, but also facilitates the orderly discharge of pyrolysis gas.

[0068] Sensor system linkage: The built-in temperature sensor monitors the material temperature in the rectangular crucible 2 in real time and feeds it back to the PLC system to automatically adjust the stirring speed to avoid local overheating and coking.

[0069] Waste heat utilization: The pyrolysis tail gas and feed exchange heat in the heat exchanger in opposite directions. The unit recovers the heat generated by high-temperature pyrolysis through heat exchange design and uses it to preheat the feed or other process steps, thereby reducing the overall energy consumption.

[0070] Mechanical structure synergy principle

[0071] Installation and buffering: The bracket assembly 1 is suspended above the high-temperature pyrolysis furnace by the eye bolts 8, and the shock absorber 10 absorbs the vibration during the stirring process and improves stability;

[0072] Cable management: The cable chain assembly 14 and cable chain support plate 15 are used to store the power cord of the explosion-proof motor 13, so as to avoid the cable from contacting high-temperature components and ensure safety.

[0073] Material dispersion and reaction enhancement principles

[0074] Shearing and crushing: The revolution of the rotating gear 44 drives the stirring component to move close to the inner wall of the rectangular crucible 2, generating radial shearing force to crush large particles and prevent carbon deposition and agglomeration;

[0075] Enhanced convection: The composite stirring trajectory drives the material to form a three-dimensional circulating flow, breaking the laminar flow state of traditional stirring, promoting heat exchange between high-temperature and low-temperature zones, and improving temperature uniformity and pyrolysis efficiency;

[0076] No dead angle coverage: The rotating gear 44 moves linearly along the fixed rack 16, and its stirring range can cover the corner area of ​​the rectangular crucible 2, solving the problem that traditional stirring paddles cannot reach the edges.

[0077] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An intelligent stirring dispersion device of a high-temperature cracking furnace, characterized in that, include: A bracket assembly (1) is provided with a rectangular crucible (2) fixedly connected to the inner side of the bracket of the bracket assembly (1), and a grooved cover assembly (3) is provided on the open end of the rectangular crucible (2). Asteroid stirring and dispersing assembly (4), the asteroid stirring and dispersing assembly (4) comprising: Fixed bushing (41), the fixed bushing (41) is fixedly connected to the inside of the groove cover assembly (3); A rotating shaft (43) is rotatably connected to the fixed bushing (41), and a limiting plate (42) is fixedly sleeved on the top surface of the rotating shaft (43). A rotating gear (44) is sleeved on the surface of the rotating shaft (43), and a connecting shaft (45) is fixedly connected to the bottom end of the rotating shaft (43).

2. The intelligent stirring and dispersing device of a high-temperature pyrolysis furnace according to claim 1, characterized in that, It also includes a heat insulation component, which includes a first rectangular small aluminosilicate ceramic fiber blanket (5) covering the connection between the trough cover assembly (3) and the rectangular crucible (2), a circular small aluminosilicate ceramic fiber blanket (6) covering the outer surface of the trough cover assembly (3), and a second rectangular small aluminosilicate ceramic fiber blanket (7) covering the edge surface of the rectangular crucible (2).

3. An intelligent stirring and dispersing device for a high-temperature cracking furnace according to claim 2, characterized in that, The bottom end of the bracket assembly (1) is fixedly connected to a shock absorber (10), the top end of the bracket assembly (1) is fixedly connected to a left roller bracket (12) and a right roller bracket (11), and the top end of the slot cover assembly (3) is fixedly connected to an explosion-proof motor (13).

4. The intelligent stirring and dispersing device of a high-temperature cracking furnace according to claim 3, characterized in that, Rollers (9) are movably connected to the inner sides of the left (12) and right (11) roller brackets. The rollers (9) are movably connected to the bottom of the bracket assembly (1) through bearings and are supported at the bottom end of the first rectangular small aluminosilicate ceramic fiber blanket (5).

5. The intelligent stirring and dispersing device of a high-temperature cracking furnace according to claim 1, characterized in that, The top of the bracket assembly (1) is fixedly connected to a drag chain fitting assembly (14), and a drag chain support plate (15) is attached above the drag chain fitting assembly (14). The drag chain support plate (15) is fixedly connected to the asteroid stirring and dispersing assembly (4). A fixed rack (16) is fixedly connected between the slot cover assemblies (3), and the fixed rack (16) meshes with the rotating gear (44) for transmission.

6. An intelligent stirring and dispersing device for a high-temperature cracking furnace according to claim 4, characterized in that, The circular small aluminosilicate ceramic fiber blanket (6) and the second rectangular small aluminosilicate ceramic fiber blanket (7) are both attached to the surface of the corresponding component by high temperature resistant adhesive; the first rectangular small aluminosilicate ceramic fiber blanket (5) is movably overlapped on the roller (9).

7. An intelligent stirring and dispersing device for a high-temperature cracking furnace according to claim 1, characterized in that, The top edge of the support assembly (1) is also fixedly connected with a lifting eye screw (8), which is used to lift the intelligent stirring and dispersing device.

8. An intelligent stirring and dispersing device for a high-temperature cracking furnace according to claim 3, characterized in that, The output shaft of the explosion-proof motor (13) is connected to the bottom end of the rotating shaft (43) via a reducer. The bottom end of the connecting shaft (45) is fixedly connected to a stirring rod (71), which is located inside the rectangular crucible (2).

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