Pyrolysis furnace inner wall cleaning device

Abstract

The utility model relates to the technical field of pyrolyzing furnace cleaning, and discloses a pyrolyzing furnace inner wall cleaning device which comprises a shell, a fixing plate is fixedly connected to the circumferential inner wall of the shell, and a rotating shaft is rotationally connected between the fixing plate and the inner wall of the bottom of the shell through a bearing. The bottom of the shell is provided with a driving assembly enabling the rotating shaft to rotate, the circumferential outer wall of the rotating shaft is fixedly connected with a frame, the two sides of the frame are fixedly connected with second scrapers, the second scrapers make close contact with the circumferential inner wall of the shell, and a fixing plate is provided with a plurality of through holes in an array mode. By means of the driving motor and the second scraper blade, after the driving motor is started to work, the second scraper blade can rotate along the inner wall of the shell, the inner wall of the shell is scraped and cleaned, and the cleaning efficiency of the inner wall of the shell is improved by conducting water spraying and scraping operation at the same time.

Description

Technical Field

[0001] This utility model relates to the field of pyrolysis furnace cleaning technology, and more specifically to a pyrolysis furnace inner wall cleaning device. Background Technology

[0002] A pyrolysis furnace is a key piece of equipment that decomposes organic matter in a high-temperature, oxygen-free or low-oxygen environment. It is widely used in chemical, environmental protection, and energy fields, such as waste plastic pyrolysis, biomass carbonization, and oil sludge treatment. During the pyrolysis process, the organic matter in the raw materials is decomposed by heat to generate gaseous, liquid, and solid products. However, some of these products will gradually adhere to the inner wall of the furnace, forming a stubborn coking layer.

[0003] A search revealed Chinese patent CN221085638U, which discloses a pyrolysis furnace. The through-hole of this device can increase the flow rate of hot air entering the first chamber, facilitating the formation of swirl in the first chamber, increasing the suspension time of urea, and reducing the risk of urea sticking together and crystallizing. However, after processing, a large amount of impurities remain on the inner wall of the pyrolysis furnace. The device requires the disassembly of its internal parts for manual cleaning, which takes a long time and is prone to incomplete cleaning, thus reducing the cleaning efficiency of the inner wall of the pyrolysis furnace. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pyrolysis furnace inner wall cleaning device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a pyrolysis furnace inner wall cleaning device, including a shell, a fixing plate fixedly connected to the inner circumference of the shell, a rotating shaft rotatably connected between the fixing plate and the bottom inner wall of the shell via a bearing, a driving assembly for rotating the rotating shaft provided at the bottom of the shell, a frame fixedly connected to the outer circumference of the rotating shaft, scraper blades fixedly connected to both sides of the frame, and the scraper blades in close contact with the inner circumference of the shell, multiple through holes arranged in an array on the fixing plate, an annular tube frame provided inside the fixing plate, a water inlet connector connected to the annular tube frame provided on one side of the shell, and multiple nozzles connected to the annular tube frame arranged in an annular array on the lower surface of the fixing plate.

[0006] As a further embodiment of this utility model, a fixing ring is fixedly connected to the outer circumference of the rotating shaft near the top and below the fixing plate. A plurality of scrapers three arranged in a circular array are fixedly connected to the outer circumference of the fixing ring, and the upper surfaces of the plurality of scrapers three are in contact with the lower surface of the fixing plate.

[0007] As a further embodiment of this utility model, the top end of the rotating shaft is fixedly connected to a ring through the upper surface of the fixing plate, and two symmetrical scrapers are fixedly connected to the outer circumference of the ring, and the lower surfaces of the two scrapers are in close contact with the upper surface of the fixing plate.

[0008] As a further embodiment of this utility model, the top of the housing is provided with a feed pipe communicating with its interior, and the bottom of the housing is provided with a three-way pipe communicating with its interior for discharging material. The other two branches of the three-way pipe are respectively provided with valve one and valve two.

[0009] As a further embodiment of this utility model, the fixing plate is provided with multiple annular heating wires inside, and the multiple heating wires are respectively located between multiple sets of through holes arranged in a circular array.

[0010] As a further embodiment of this utility model, the drive assembly includes a fixed frame fixedly connected to the outer wall of the bottom of the housing, and a drive motor for rotating the shaft along the axial direction is fixedly connected to the inner wall of the top of the fixed frame.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model, through the provided drive motor and scraper two, allows the scraper two to rotate along the inner wall of the housing after the drive motor is started, thereby scraping and cleaning the inner wall of the housing. By spraying water and scraping simultaneously, the efficiency of cleaning the inner wall of the housing is increased.

[0013] 2. The present invention, through the provided scraper three, can clean the lower surface of the fixed plate while the scraper two cleans the inner wall of the shell, thus preventing impurities from adhering to the lower surface of the fixed plate for a long time and affecting the feeding.

[0014] 3. The present invention, through the provided scraper, can clean the upper surface of the fixed plate while the scraper cleans the lower surface of the fixed plate, effectively preventing the accumulation of materials on the upper surface of the fixed plate.

[0015] 4. This utility model, through the provided valve one and valve two, can separately discharge the material and the cleaned waste through different pipes, thus avoiding the mixing of material and waste and its impact on the material. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model.

[0018] Figure 3 This is a partially enlarged structural schematic diagram of the present invention.

[0019] Figure 4 This is a cross-sectional view of the fixing plate of this utility model.

[0020] The attached diagram is labeled as follows: 1. Housing; 2. Fixing frame; 3. Drive motor; 4. T-shaped pipe; 5. Feed pipe; 6. Valve 1; 7. Valve 2; 8. Fixing plate; 9. Rotating shaft; 10. Scraper 1; 11. Frame; 12. Scraper 2; 13. Scraper 3; 14. Water inlet connector; 15. Ring-shaped pipe rack; 16. Through hole; 17. Heating wire; 18. Nozzle. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4This utility model provides a pyrolysis furnace inner wall cleaning device, including a shell 1. A fixing plate 8 is bolted to the inner circumference of the shell 1. A rotating shaft 9 is rotatably connected between the fixing plate 8 and the bottom inner wall of the shell 1 via a bearing. A drive assembly for rotating the rotating shaft 9 is provided at the bottom of the shell 1. A frame 11 is bolted to the outer circumference of the rotating shaft 9. Scrapers 12 are bolted to both sides of the frame 11, and the scrapers 12 are in close contact with the inner circumference of the shell 1. The fixing plate 8 has multiple through holes 16 arranged in an array. An annular tube frame 15 is provided inside the fixing plate 8. A water inlet connector 14 communicating with the annular tube frame 15 is provided on one side of the shell 1. Multiple nozzles 18 communicating with the annular tube frame 15 are arranged in an annular array on the lower surface of the fixing plate 8. The drive assembly includes a fixing plate 8 bolted to the outer bottom wall of the shell 1. The top inner wall of the frame 2 is bolted with a drive motor 3 that rotates the rotating shaft 9 axially. When the inner wall of the pyrolysis furnace needs to be cleaned, the water inlet connector 14 is first connected to the external water pipe to supply water. Water is then delivered to multiple nozzles 18 through the ring-shaped pipe frame 15 to rinse the inner wall of the shell 1. At the same time, the drive motor 3 is started to drive the rotating shaft 9 to rotate. As the rotating shaft 9 rotates, it will drive the frame 11 fixed to it to rotate, thereby causing the scraper 12 on it to rotate along the inner wall of the shell 1 to scrape and clean the inner wall of the shell 1. With the drive motor 3 and scraper 12 provided, after the drive motor 3 is started, the scraper 12 can rotate along the inner wall of the shell 1 to scrape and clean the inner wall of the shell 1. By spraying water and scraping at the same time, the efficiency of cleaning the inner wall of the shell 1 is increased.

[0023] In this invention, a fixing ring is bolted to the outer circumference of the rotating shaft 9, which is located near the top and below the fixing plate 8. Multiple scraper blades 13 arranged in a circular array are bolted to the outer circumference of the fixing ring. The upper surfaces of the scraper blades 13 are in contact with the lower surface of the fixing plate 8. As the rotating shaft 9 rotates, the scraper blades 13 rotate axially. Because the upper surfaces of the scraper blades 13 are in contact with the lower surface of the fixing plate 8, they scrape away impurities from the lower surface of the fixing plate 8 during rotation. The scraper blades 13 clean the lower surface of the fixing plate 8 while the inner wall of the housing 1 is cleaned by the scraper blades 12, preventing impurities from adhering to the lower surface of the fixing plate 8 for extended periods and thus affecting material feeding.

[0024] In this invention, the top end of the rotating shaft 9 passes through the upper surface of the fixed plate 8 and is fixedly connected to a ring by bolts. Two symmetrical scrapers 10 are fixedly connected to the outer circumference of the ring by bolts, and the lower surfaces of the two scrapers 10 are in close contact with the upper surface of the fixed plate 8. The fixed plate 8 is provided with multiple annular heating wires 17, which are located between multiple sets of circular array through holes 16. When the rotating shaft 9 rotates, it will drive the scrapers 10 to rotate along the axial direction. Since the lower surface of the scrapers 10 is in contact with the upper surface of the fixed plate 8, the upper surface of the fixed plate 8 will be scraped while the scrapers 10 rotate. The scrapers 10 can clean the upper surface of the fixed plate 8 while the scrapers 13 clean the lower surface of the fixed plate 8, thus preventing the material from accumulating on the upper surface of the fixed plate 8.

[0025] In this invention, the top of the shell 1 is provided with a feed pipe 5 communicating with its interior, and the bottom of the shell 1 is provided with a three-way pipe 4 communicating with its interior for discharging material. The other two branches of the three-way pipe 4 are respectively provided with valve 6 and valve 7. When the material is pyrolyzed in the pyrolysis furnace, valve 6 is opened and valve 7 is closed so that the material is output from the right end of the three-way pipe 4. When cleaning the inner wall of the shell 1, valve 6 is closed and valve 7 is opened, and the waste material is discharged from the left end of the three-way pipe 4. By using valve 6 and valve 7, the material and the waste material can be discharged separately to avoid mixing and affecting the material.

[0026] The use of this utility model involves the following steps:

[0027] S1: When it is necessary to clean the inner wall of the pyrolysis furnace, first connect the water inlet connector 14 to the external water pipe to introduce water, and send water to multiple nozzles 18 through the ring pipe frame 15 to rinse the inner wall of the shell 1. At the same time, start the drive motor 3 to drive the rotating shaft 9 to rotate. When the rotating shaft 9 rotates, it will drive the frame 11 fixed to it to rotate, so that the scraper 12 on it will rotate along the inner wall of the shell 1 to scrape and clean the inner wall of the shell 1.

[0028] S2: While the rotating shaft 9 is rotating, it will drive the scraper 3 13 to rotate along the axial direction. Since the upper surface of the scraper 3 13 is in contact with the lower surface of the fixed plate 8, it will scrape the lower surface of the fixed plate 8 while rotating.

[0029] S3: While the rotating shaft 9 is rotating, it will drive the scraper 10 to rotate along the axial direction. Since the lower surface of the scraper 10 is in contact with the upper surface of the fixed plate 8, the upper surface of the fixed plate 8 will be scraped while the scraper 10 is rotating.

[0030] S4: When the material is pyrolyzed in the pyrolysis furnace, open valve 6 and close valve 7 to allow the material to be output from the right end of the three-way pipe 4. When cleaning the inner wall of the shell 1, close valve 6 and open valve 7. The waste material cleaned is output from the left end of the three-way pipe 4.

[0031] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0032] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A pyrolysis furnace inner wall cleaning device comprising a housing (1), characterized in that: A fixing plate (8) is fixedly connected to the inner circumference of the housing (1). A rotating shaft (9) is rotatably connected between the fixing plate (8) and the bottom inner wall of the housing (1) via a bearing. A drive assembly for rotating the rotating shaft (9) is provided at the bottom of the housing (1). A frame (11) is fixedly connected to the outer circumference of the rotating shaft (9). Scraper blades (12) are fixedly connected to both sides of the frame (11), and the scraper blades (12) are in close contact with the inner circumference of the housing (1). Multiple through holes (16) are opened in an array on the fixing plate (8). A ring-shaped pipe rack (15) is provided inside the fixing plate (8). A water inlet connector (14) connected to the ring-shaped pipe rack (15) is provided on one side of the housing (1). Multiple nozzles (18) connected to the ring-shaped pipe rack (15) are arranged in a ring array on the lower surface of the fixing plate (8).

2. A pyrolysis furnace inner wall cleaning device according to claim 1, characterized in that: A fixing ring is fixedly connected to the outer circumference of the rotating shaft (9) near the top and below the fixing plate (8). A plurality of scraper blades (13) arranged in a circular array are fixedly connected to the outer circumference of the fixing ring, and the upper surfaces of the plurality of scraper blades (13) are in contact with the lower surface of the fixing plate (8).

3. The pyrolysis furnace inner wall cleaning device according to claim 2, characterized in that: The top of the rotating shaft (9) is fixedly connected to a ring through the upper surface of the fixing plate (8). Two symmetrical scrapers (10) are fixedly connected to the outer circumference of the ring, and the lower surfaces of the two scrapers (10) are in close contact with the upper surface of the fixing plate (8).

4. A pyrolysis furnace inner wall cleaning device according to claim 1, characterized in that: The top of the housing (1) is provided with a feed pipe (5) communicating with its interior, and the bottom of the housing (1) is provided with a three-way pipe (4) communicating with its interior for discharging material. The other two branches of the three-way pipe (4) are respectively provided with valve one (6) and valve two (7).

5. A pyrolysis furnace inner wall cleaning device according to claim 3, characterized in that: The fixed plate (8) is provided with multiple annular heating wires (17) inside, and the multiple heating wires (17) are respectively located between multiple sets of through holes (16) arranged in a circular array.

6. A pyrolysis furnace inner wall cleaning device according to claim 1, characterized in that: The drive assembly includes a mounting bracket (2) fixedly connected to the bottom outer wall of the housing (1), and a drive motor (3) for rotating the shaft (9) axially is fixedly connected to the top inner wall of the mounting bracket (2).

Images