Tar residue pyrolysis system for fuel preparation

By designing the scraper and drive mechanism in the tar residue pyrolysis system, the problem of tar residue sticking to the inner wall of the rotary furnace was solved, the automatic removal of residue was achieved, and the operating efficiency of the pyrolysis system was improved.

CN224258557UActive Publication Date: 2026-05-19HE NAN BO HAI HUA GONG YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HE NAN BO HAI HUA GONG YOU XIAN GONG SI
Filing Date
2025-05-27
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Tar residue tends to adhere to the inside of the pyrolysis system during the pyrolysis process, which can have adverse effects on subsequent pyrolysis processes.

Method used

A pyrolysis system for tar residue was designed, comprising a support, a feeding mechanism, a discharging mechanism, a rotary furnace, a scraper, and a drive mechanism. The scraper removes the residue from the inner wall of the rotary furnace, and the automatic removal of the residue is achieved by the cooperation of the telescopic rod and the drive mechanism.

Benefits of technology

It effectively reduces the residue residue on the inner wall of the rotary furnace, reduces the impact on the subsequent pyrolysis process, and improves the system's operating efficiency and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of pyrolysis equipment, in particular to a tar residue pyrolysis system for fuel preparation, which comprises a support, a feeding mechanism and a discharging mechanism are arranged on the support, the discharging mechanism is connected with a discharging pipe and an exhaust pipe, a rotating furnace is rotatably arranged between the feeding mechanism and the discharging mechanism, and a shell is sleeved on the outer side of the rotating furnace. An electric heating unit is arranged in the portion, below the rotary furnace, of the shell, a driving mechanism connected with the rotary furnace is arranged on the support, the feeding mechanism and the discharging mechanism are each provided with a vertically-extending telescopic rod, a cross beam is arranged between the two telescopic rods, and a scraping plate is arranged at the lower end of the cross beam. According to the utility model, the residue is reduced, so that the adverse effect on pyrolysis is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of pyrolysis equipment, specifically to a tar residue pyrolysis system for fuel preparation. Background Technology

[0002] Tar residue pyrolysis is a process in which materials are heated to a certain temperature (usually 400-600℃) in an oxygen-free or low-oxygen environment using an external heat source, causing the organic matter to undergo a thermochemical reaction and decompose into three phases of products: combustible gases (such as hydrogen, methane, etc.), liquid oil, and solid residue. The pyrolysis process can be divided into two main stages: 1. Evaporation stage; 2. Parallel-sequential reaction stage. In the evaporation stage, low-boiling-point light hydrocarbons volatilize from the sludge and tar residue. In the parallel-sequential reaction stage, heavy oil begins to thermally decompose, ultimately generating combustible gases, organic liquids, and solid residue. The solid residue adheres to the inside of the pyrolysis system, and if it is not removed, it will have an adverse effect on subsequent pyrolysis. Summary of the Invention

[0003] The purpose of this invention is to provide a tar residue pyrolysis system for fuel preparation, which reduces residue residue and thus reduces adverse effects on pyrolysis.

[0004] The technical solution adopted is as follows:

[0005] A tar residue pyrolysis system for fuel preparation includes a support, a feeding mechanism and a discharging mechanism on the support, the discharging mechanism being connected to a discharge pipe and an exhaust pipe, a rotary furnace rotatably mounted between the feeding mechanism and the discharging mechanism, a shell sleeved on the outside of the rotary furnace, an electric heating unit mounted inside the shell below the rotary furnace, a drive mechanism connected to the rotary furnace on the support, and both the feeding mechanism and the discharging mechanism being equipped with vertically extending telescopic rods, a crossbeam being mounted between the two telescopic rods, and a scraper being mounted at the lower end of the crossbeam.

[0006] Preferably, the drive mechanism includes a drive motor, a reducer, a gear, and an external gear ring. The external gear ring is coaxially fixed on the outside of the rotary furnace. The drive motor and the reducer are fixed on the support. The reducer includes an input shaft and an output shaft. The input shaft is connected to the drive motor, and the output shaft is connected to the gear. The gear and the external gear ring mesh.

[0007] Preferably, multiple temperature sensors are installed on the crossbeam.

[0008] Preferably, the outer shell is covered with a thermal insulation layer.

[0009] Preferably, the telescopic rod is a hydraulic telescopic cylinder.

[0010] Compared to existing technologies, the advantages are:

[0011] After the pyrolysis of tar residue, the material remaining in the rotary kiln is discharged through the discharge mechanism. Then, the two telescopic rods are controlled to extend synchronously, and the lower end of the scraper is pressed against the inner wall of the rotary kiln. The drive mechanism drives the rotary kiln to rotate, and the scraper scrapes off the residue adhering to the inner wall of the rotary kiln, reducing the residue adhering to the inner wall of the rotary kiln and reducing the impact on subsequent pyrolysis. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural schematic diagram of a tar residue pyrolysis system for fuel preparation according to this utility model.

[0013] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.

[0014] Figure 3 This is a front view schematic diagram of a tar residue pyrolysis system for fuel preparation according to this utility model.

[0015] In the diagram: 1. Support; 2. Feeding mechanism; 3. Discharging mechanism; 4. Discharge pipe; 5. Exhaust pipe; 6. Horizontal pipe; 7. Rotary furnace; 8. Shell; 9. Electric heating unit; 10. Drive motor; 11. Reducer; 12. Gear; 13. External gear ring; 14. Telescopic rod; 15. Crossbeam; 16. Scraper; 17. Temperature sensor; 18. Controller. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:

[0017] Example 1: A tar residue pyrolysis system for fuel preparation, comprising a support 1, a feeding mechanism 2 and a discharging mechanism 3 provided on the support 1, the discharging mechanism 3 being connected to a discharging pipe 4 and an exhaust pipe 5, the feeding mechanism 2 including a vertically arranged feeding pipe and a horizontal pipe 6 communicating with the feeding pipe, a rotary furnace 7 rotatably arranged between the feeding mechanism 2 and the discharging mechanism 3, the axis of the rotary furnace 7 extending in the horizontal direction.

[0018] The rotary furnace 7 is fitted with a shell 8 on its outer side. The shell 8 is fixedly connected to the support 1. Both ends of the shell 8 are provided with openings. Both ends of the rotary furnace 7 extend from the openings to the outside of the shell 8. An electric heating unit 9 is provided inside the shell 8 below the rotary furnace 7. A power control module connected to the electric heating unit 9 is provided on the support 1. The power control module is used to adjust the power of the electric heating unit 9.

[0019] A drive mechanism connected to the rotary furnace 7 is provided on the support 1. The drive mechanism drives the rotary furnace 7 to rotate. Both the feeding mechanism 2 and the discharging mechanism 3 are provided with vertically extending telescopic rods 14. A crossbeam 15 is provided between the two telescopic rods 14. The crossbeam 15 is located inside the rotary furnace 7. A scraper 16 is provided at the lower end of the crossbeam 15. A controller 18 is provided on the support 1. The controller 18 is connected to both telescopic rods 14. The controller 18 controls the two telescopic rods 14 to extend and retract synchronously, thereby adjusting the position of the crossbeam 15. After the pyrolysis of the tar residue, the material remaining in the rotary furnace 7 is discharged through the discharging mechanism 3. Then, the two telescopic rods 14 are controlled to extend synchronously. The lower end of the scraper 16 is pressed against the inner wall of the rotary furnace 7. The drive mechanism drives the rotary furnace 7 to rotate. The scraper 16 is used to scrape off the residue adhering to the inner wall of the rotary furnace 7.

[0020] Example 2: A tar residue pyrolysis system for fuel preparation includes a support 1, a feeding mechanism 2 and a discharging mechanism 3 on the support 1, the discharging mechanism 3 is connected to a discharging pipe 4 and an exhaust pipe 5, the feeding mechanism 2 includes a vertically arranged feeding pipe and a horizontal pipe 6 communicating with the feeding pipe, and a rotary furnace 7 is rotatably arranged between the feeding mechanism 2 and the discharging mechanism 3, the axis of the rotary furnace 7 extending in the horizontal direction.

[0021] The rotary furnace 7 is fitted with a shell 8 on its outer side. The shell 8 is fixedly connected to the support 1. Both ends of the shell 8 are provided with openings. Both ends of the rotary furnace 7 extend from the openings to the outside of the shell 8. An electric heating unit 9 is provided inside the shell 8 below the rotary furnace 7. A power control module connected to the electric heating unit 9 is provided on the support 1. The power control module is used to adjust the power of the electric heating unit 9. An insulation layer is laid on the outside of the shell 8. The insulation layer reduces heat loss and saves energy.

[0022] A drive mechanism connected to the rotary furnace 7 is provided on the support 1. The drive mechanism includes a drive motor 10, a reducer 11, a gear 12, and an external gear ring 13. The external gear ring 13 is coaxially fixed on the outside of the rotary furnace 7. The drive motor 10 and the reducer 11 are fixed on the support 1. The reducer 11 includes an input shaft and an output shaft. The input shaft is connected to the drive motor 10, and the output shaft is connected to the gear 12. The gear 12 and the external gear ring 13 mesh. The drive mechanism drives the rotary furnace 7 to rotate.

[0023] Both the feeding mechanism 2 and the discharging mechanism 3 are equipped with vertically extending telescopic rods 14. A crossbeam 15 is provided between the two telescopic rods 14. The crossbeam 15 is located inside the rotary furnace 7. A scraper 16 is provided at the lower end of the crossbeam 15. Multiple temperature sensors 17 are installed on the crossbeam 15. The temperature sensors 17 monitor the stability inside the rotary furnace 7.

[0024] A controller 18 is installed on the support 1. The controller 18 is connected to both telescopic rods 14. The controller 18 controls the two telescopic rods 14 to extend and retract synchronously, thereby adjusting the position of the crossbeam 15. The telescopic rods 14 are hydraulic telescopic cylinders, and each hydraulic telescopic cylinder is connected to a hydraulic station.

[0025] The working principle is as follows:

[0026] During the pyrolysis operation, the tar residue is fed into the rotary furnace 7 through the feeding mechanism 2. The drive mechanism is activated to drive the rotary furnace 7. The electric heating unit 9 is used to pyrolyze the rotary furnace 7. The gas generated during the pyrolysis process is discharged from the exhaust pipe 5. After the tar residue is pyrolyzed, the material remaining in the rotary furnace 7 is discharged through the discharge mechanism 3. The two telescopic rods 14 are controlled to extend synchronously. The lower end of the scraper 16 is pressed against the inner wall of the rotary furnace 7. The drive mechanism drives the rotary furnace 7 to rotate. The scraper 16 is used to scrape off the residue adhering to the inner wall of the rotary furnace 7.

[0027] 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. A tar residue pyrolysis system for fuel production, characterized by: The device includes a support (1), a feeding mechanism (2) and a discharging mechanism (3) on the support (1), a discharge pipe (4) and an exhaust pipe (5) connected to the discharge mechanism (3), a rotary furnace (7) rotatably arranged between the feeding mechanism (2) and the discharge mechanism (3), a shell (8) is fitted on the outside of the rotary furnace (7), an electric heating unit (9) is arranged in the shell (8) below the rotary furnace (7), a drive mechanism connected to the rotary furnace (7) is provided on the support (1), both the feeding mechanism (2) and the discharge mechanism (3) are provided with vertically extending telescopic rods (14), a crossbeam (15) is arranged between the two telescopic rods (14), and a scraper (16) is arranged at the lower end of the crossbeam (15).

2. A tar residue pyrolysis system for fuel production as claimed in claim 1, characterized in that: The drive mechanism includes a drive motor (10), a reducer (11), a gear (12), and an external gear ring (13). The external gear ring (13) is coaxially fixed on the outside of the rotary furnace (7). The drive motor (10) and the reducer (11) are fixed on the support (1). The reducer (11) includes an input shaft and an output shaft. The input shaft is connected to the drive motor (10), and the output shaft is connected to the gear (12). The gear (12) meshes with the external gear ring (13).

3. A tar residue pyrolysis system for fuel production as claimed in claim 1, wherein: Multiple temperature sensors (17) are installed on the crossbeam (15).

4. A tar residue pyrolysis system for fuel production as claimed in claim 1, wherein: The outer shell (8) is covered with a heat insulation layer.

5. A tar residue pyrolysis system for fuel production as claimed in claim 1, wherein: The telescopic rod (14) is a hydraulic telescopic cylinder.