Secondary combustion chamber of electric heating preheating type incinerator

Abstract

The utility model discloses an electric heating preheating type incinerator secondary combustion chamber which comprises a secondary combustion chamber pipe body, and the surface of the secondary combustion chamber pipe body is provided with a smoke inlet pipe, a smoke outlet pipe and an air inlet pipe. The base is arranged at the lower end of the secondary combustion chamber pipe body in a communicating manner; the cleaning mechanism comprises a limiting shell and a cleaning ring; the limiting shell is arranged on the inner wall of the secondary combustion chamber pipe body, the cleaning ring is slidably connected into the limiting shell, the outer wall of the cleaning ring is connected with a cleaning plate, and the cleaning plate abuts against the inner wall of the secondary combustion chamber pipe body. The lifting end is arranged on the outer wall of the secondary combustion chamber pipe body and used for driving the cleaning ring to move in the height direction of the secondary combustion chamber pipe body. The secondary combustion chamber has the advantages that the technical problem that in the prior art, a large amount of dust and ash generated in the long-term combustion process can be adsorbed to the inner wall of the secondary combustion chamber due to the fact that no corresponding cleaning mechanism is arranged in the secondary combustion chamber is solved, and follow-up normal use of the secondary combustion chamber is affected.

Description

Technical Field

[0001] This utility model relates to the technical field of incinerator equipment, specifically to a secondary combustion chamber of an electrically heated preheating incinerator. Background Technology

[0002] Hazardous waste poses a serious threat to the global environment and human health, and its harmfulness is often long-term and potential. Among them, hazardous waste such as pharmaceutical waste, wood preservative waste, organic solvent waste, dye waste, and paint waste are currently classified as categories that can be treated by incineration according to regulations. Hazardous waste is collected and transported to the site in a centralized manner through special containers and vehicles. After pretreatment, it is incinerated in a rotary kiln incinerator. The flue gas generated by incineration is treated to meet emission standards.

[0003] Secondary combustion chambers, also known as secondary combustion chambers, are generally used in the hazardous waste treatment industry or municipal solid waste incineration industry. Their main function is to ensure that combustible gases such as carbon monoxide, hydrogen, and methane produced by pyrolysis are fully combusted. At the same time, the high temperature during combustion is used to destroy harmful substances such as dioxins, so as to ensure that the flue gas meets emission standards. However, since a large amount of dust and ash will be generated during the long-term combustion process, after a period of use, the existing secondary combustion chambers will have a large amount of dust and ash adsorbed on the inner wall of the secondary combustion chamber, which will affect the subsequent efficiency of the secondary combustion chamber. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide an electric heating preheating incinerator secondary combustion chamber. This solves the technical problem that in the prior art, no corresponding cleaning mechanism is set inside the secondary combustion chamber, which causes a large amount of dust and ash generated during long-term combustion to adhere to the inner wall of the secondary combustion chamber, thereby affecting the subsequent normal use of the secondary combustion chamber.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides a secondary combustion chamber for an electrically heated preheating incinerator, comprising:

[0007] The secondary combustion chamber tube body has a smoke inlet pipe, a smoke outlet pipe, and an air inlet pipe respectively opened on its surface;

[0008] A base is connected to the lower end of the secondary combustion chamber pipe body;

[0009] A cleaning mechanism includes a limiting shell and a cleaning ring; the limiting shell is disposed on the inner wall of the secondary combustion chamber pipe, and the cleaning ring is slidably connected inside the limiting shell; a cleaning plate is connected to the outer wall of the cleaning ring, and the cleaning plate abuts against the inner wall of the secondary combustion chamber pipe.

[0010] The lifting end is disposed on the outer wall of the secondary combustion chamber pipe and is used to drive the cleaning ring to move along the height direction of the secondary combustion chamber pipe and to clean the inner wall of the secondary combustion chamber pipe.

[0011] The material conveying end is located inside the base and is used to transport the mud and dirt cleaned by the cleaning ring.

[0012] In some embodiments, a communication port is provided at the connection between the base and the secondary combustion chamber pipe, and a discharge port is also provided on the base.

[0013] In some embodiments, the limiting shell includes a first shell and three second shells, the first shell and the three second shells being arranged in a cross shape on the inner wall of the secondary combustion chamber pipe, and a cleaning ring being slidably connected inside the first shell and the second shells.

[0014] In some embodiments, the first housing has a through hole, and the lifting end is disposed in the through hole.

[0015] In some embodiments, the outer wall of the cleaning ring is provided with a plurality of chambers, and each chamber is provided with a plurality of spring dampers arranged circumferentially, the ends of which are connected to a cleaning plate.

[0016] In some embodiments, the outer wall of the cleaning ring is provided with a connecting block, the connecting block including a first block and three second blocks, the first block and the three second blocks being arranged in a cross shape on the outer wall of the cleaning ring, the first block being slidably connected to the first housing, and the second blocks being slidably connected to the second housing.

[0017] In some embodiments, one end of the first block passes through the through hole and is connected to a ball screw block, the ball screw block being threadedly connected to the lifting end, the lifting end including a housing disposed outside the secondary combustion chamber pipe, the upper end of the housing being connected to a first motor, the output end of the first motor passing through the housing and being connected to a ball screw, the ball screw being threadedly connected to the ball screw block.

[0018] In some embodiments, the inner wall of the cleaning ring is provided with a flow-disrupting plate at an angle, and the flow-disrupting plate is a ceramic-based composite.

[0019] In some embodiments, the number of cleaning rings is at least three, and the three cleaning rings are connected by a plurality of fixed posts.

[0020] In some embodiments, the material conveying end includes a second motor and a spiral conveying shaft; the second motor is disposed outside the base, and the output end of the second motor extends into the base and is connected to the spiral conveying shaft.

[0021] Compared with the prior art, the present invention provides an electric heating preheating incinerator secondary combustion chamber, wherein multiple limiting shells are set on the inner wall of the secondary combustion chamber tube, and a cleaning ring is slidably connected inside the limiting shell. The cleaning end of the cleaning ring abuts against the inner wall of the secondary combustion chamber tube, and the cleaning ring is raised and lowered by the lifting end to clean the inner wall of the secondary combustion chamber tube. The cleaned sludge falls into the base and is transported by the material conveying end. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the secondary combustion chamber of the electrically heated preheating incinerator provided in this embodiment of the utility model;

[0023] Figure 2 This is a three-dimensional schematic diagram of the secondary combustion chamber of the electrically heated preheating incinerator provided in this embodiment of the utility model;

[0024] Figure 3 This is a schematic diagram showing the unfolded secondary combustion chamber tube and annulus of the electrically heated preheating incinerator provided in this embodiment of the utility model;

[0025] Figure 4 This is a top view of the secondary combustion chamber tube of the electrically heated preheating incinerator provided in this embodiment of the utility model;

[0026] Figure 5 This is a schematic diagram of the assembly of the secondary combustion chamber tube and base of the electrically heated preheating incinerator provided in this embodiment of the utility model;

[0027] Figure 6 This is a front view of the secondary combustion chamber of the electrically heated preheating incinerator provided in this embodiment of the utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Secondary combustion chamber tube; 11. Smoke inlet pipe; 12. Smoke outlet pipe; 13. Air inlet pipe; 2. Base; 21. Connecting port; 22. Discharge port; 3. Cleaning mechanism; 4. Limiting shell; 41. First shell; 411. Through hole; 42. Second shell; 5. Cleaning ring; 51. Chamber; 511. Spring damper; 52. Cleaning plate; 53. Connecting block; 531. First block; 532. Second block; 54. Ball screw block; 55. Baffle plate; 56. Fixed column; 6. Lifting end; 61. Machine housing; 62. First motor; 63. Ball screw; 7. Material conveying end; 71. Second motor; 72. Spiral conveying shaft. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] To address the technical problem that existing technologies lack corresponding cleaning mechanisms inside the secondary combustion chamber, resulting in a large amount of dust and ash adhering to the inner wall of the secondary combustion chamber during long-term combustion, thus affecting its subsequent normal use, this utility model provides an electrically heated preheating incinerator secondary combustion chamber that can clean the inner wall of the secondary combustion chamber tube, ensuring the working efficiency of the secondary combustion chamber tube.

[0031] It should be noted that the electric heating preheating incinerator secondary combustion chamber described in this utility model is used in, but not limited to, the field of incinerators. For ease of explanation, this utility model only uses the application of the electric heating preheating incinerator secondary combustion chamber in the field of incinerators as an example for explanation. The principle of the electric heating preheating incinerator secondary combustion chamber in other types of equipment is essentially the same as the principle of its application in the field of incinerators, and will not be described in detail here.

[0032] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the secondary combustion chamber of an electrically heated preheating incinerator according to an embodiment of the present invention. The secondary combustion chamber of the electrically heated preheating incinerator includes:

[0033] The secondary combustion chamber tube 1 has a smoke inlet pipe 11, a smoke outlet pipe 12 and an air inlet pipe 13 respectively opened on its surface;

[0034] Base 2 is connected to the lower end of the secondary combustion chamber pipe body 1;

[0035] The cleaning mechanism 3 includes a limiting shell 4 and a cleaning ring 5. The limiting shell 4 is disposed on the inner wall of the secondary combustion chamber pipe body 1, and the cleaning ring 5 is slidably connected inside the limiting shell 4. The outer wall of the cleaning ring 5 is connected to a cleaning plate 52, and the cleaning plate 52 abuts against the inner wall of the secondary combustion chamber pipe body 1.

[0036] Lifting end 6 is located on the outer wall of the secondary combustion chamber pipe body 1 and is used to drive the cleaning ring 5 to move along the height direction of the secondary combustion chamber pipe body 1 and to clean the inner wall of the secondary combustion chamber pipe body 1.

[0037] The material conveying end 7 is located inside the base 2 and is used to transport the mud and dirt cleaned by the cleaning ring 5.

[0038] In this embodiment, multiple limiting shells 4 are provided on the inner wall of the secondary combustion chamber tube 1. A cleaning ring 5 is slidably connected inside the limiting shell 4. The cleaning end of the cleaning ring 5 abuts against the inner wall of the secondary combustion chamber tube 1. The cleaning ring 5 is raised and lowered by the lifting end 6, so that it cleans the inner wall of the secondary combustion chamber tube 1. The cleaned mud falls into the base 2, and the material is transported by the material conveying end 7.

[0039] In one embodiment, please refer to Figure 2To facilitate the operation of the cleaned waste, a connecting port 21 is provided at the connection between the base 2 and the secondary combustion chamber pipe 1, and a discharge port 22 is also provided on the base 2. The material conveying end 7 includes a second motor 71 and a spiral conveying shaft 72. The second motor 71 is located outside the base 2, and the output end of the second motor 71 extends into the base 2 and is connected to the spiral conveying shaft 72.

[0040] In this embodiment, a connecting port 21 is provided to facilitate the dropping of cleaned mud into the base 2, and the mud is moved by the operation of the second motor 71 and the spiral conveyor shaft 72, and discharged outward through the discharge port 22.

[0041] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 4 To facilitate the movement of the cleaning ring 5, the limiting shell 4 includes a first shell 41 and three second shells 42. The first shell 41 and the three second shells 42 are arranged in a cross shape on the inner wall of the secondary combustion chamber pipe 1. The cleaning ring 5 is slidably connected inside the first shell 41 and the second shells 42. A connecting block 53 is provided on the outer wall of the cleaning ring 5. The connecting block 53 includes a first block 531 and three second blocks 532. The first block 531 and the three second blocks 532 are arranged in a cross shape on the outer wall of the cleaning ring 5. The first block 531 is slidably connected inside the first shell 41, and the second blocks 532 are slidably connected inside the second shell 42.

[0042] In this embodiment, a first housing 41 and three second housings 42 are provided inside the secondary combustion chamber tube 1. The cross-sections of the first housing 41 and the second housings 42 are concave, which facilitates their cooperation with the first block 531 and the three second blocks 532 on the outer wall of the cleaning ring 5. The first block 531 is slidably connected inside the first housing 41, and the second blocks 532 are slidably connected inside the second housings 42. This can effectively improve the up-and-down movement efficiency of the cleaning ring 5, thereby enabling the cleaning ring 5 to better clean the inner wall of the secondary combustion chamber tube 1.

[0043] In one embodiment, please refer to Figure 1 , Figure 3 and Figure 5To further improve the moving efficiency of the cleaning ring 5, a through hole 411 is provided on the first housing 41, and a lifting end 6 is provided in the through hole 411. Several chambers 51 are provided on the outer wall of the cleaning ring 5. Multiple spring dampers 511 are arranged circumferentially in any chamber 51. The end of the spring damper 511 is connected to a cleaning plate 52. The cleaning plate 52 abuts against the inner wall of the secondary combustion chamber tube 1. One end of the first block 531 passes through the through hole 411 and is connected to a ball screw block 54. The ball screw block 54 is threaded to the lifting end 6. The lifting end 6 includes a housing 61 located outside the secondary combustion chamber tube 1. A first motor 62 is connected to the upper end of the housing 61. The output end of the first motor 62 passes through the housing 61 and is connected to a ball screw 63. The ball screw 63 is threaded to a ball screw block 54.

[0044] In this embodiment, a through hole 411 is opened inside the first housing 41, through which the end of the first block 531 passes and extends into the housing 61, and is connected to a ball screw block 54. The output end of the first motor 62 is connected to a ball screw 63 axially disposed in the housing 61, and the ball screw block 54 is threadedly connected to the ball screw 63. When the first motor 62 drives the ball screw 63 to rotate clockwise or counterclockwise, the ball screw block 54 can move up or down on the ball screw 63, thereby driving the cleaning ring 5 to move up and down on the inner wall of the secondary combustion chamber pipe 1, thereby achieving the technical effect of cleaning the inner wall.

[0045] In one embodiment, please refer to Figure 1 and Figure 3 To improve the turbulence effect on the inner wall of the secondary combustion chamber tube 1, several turbulence plates 55 are inclinedly arranged on the inner wall of the cleaning ring 5, and the turbulence plates 55 are ceramic-based composite parts. The number of cleaning rings 5 ​​is at least three, and the three cleaning rings 5 ​​are connected by multiple fixed columns 56.

[0046] In this embodiment, the baffle 55 is a key component for optimizing the combustion process, improving treatment efficiency, and reducing pollutant emissions. The baffle 55 can disrupt the laminar flow state of the airflow, generating eddies and turbulence, so that the incompletely burned flue gas is fully mixed with secondary air, thereby improving combustion efficiency and reducing unburned organic matter. At the same time, the baffle 55 changes the flow channel direction, increasing the path length of the flue gas in the high-temperature zone, ensuring that harmful substances are fully decomposed. The three cleaning rings 5 ​​are stacked layer by layer through multiple fixed columns 56, thereby further improving the turbulence efficiency of the baffle 55.

[0047] To better understand this utility model, the following is combined with... Figures 1 to 6The technical solution of this utility model is described in detail as follows: After prolonged use, dirt easily accumulates on the inner wall surface of the secondary combustion chamber pipe 1. When workers need to clean its interior, the first motor 62 is started. The first motor 62 drives the ball screw 63 to rotate. Through the cooperation of the ball screw 63 and the ball screw block 54, the first block 531 is moved. Since the first block 531 is connected to the cleaning ring 5, when the first block 531 moves up and down, the cleaning ring 5 moves up and down synchronously. Furthermore, three second housings 42 are provided on the inner wall of the secondary combustion chamber pipe 1, and three sliding connections are provided on the outer wall of the cleaning ring 5 inside the second housings 42. The second block 532 can further improve the moving efficiency of the cleaning ring 5. The cleaning ring 5 has multiple chambers 51 circumferentially opened on its outer periphery. Spring dampers 511 are arranged in the chambers 51. The end of the spring damper 511 is connected to the cleaning plate 52. Under the elastic force of the spring damper 511, the cleaning plate 52 is pushed to abut against the inner wall of the secondary combustion chamber tube 1. When the cleaning ring 5 moves up and down, the cleaning plate 52 cleans the inner wall of the secondary combustion chamber tube 1, thereby achieving a better cleaning effect. The cleaned dirt falls from the connecting port 21 into the base 2, and the material is driven out from the discharge port 22 by the cooperation of the second motor 71 and the spiral conveying shaft 72.

[0048] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A secondary combustion chamber of an electrically heated preheating incinerator, characterized in that, include: The secondary combustion chamber tube body has a smoke inlet pipe, a smoke outlet pipe, and an air inlet pipe respectively opened on its surface; A base is connected to the lower end of the secondary combustion chamber pipe body; A cleaning mechanism includes a limiting shell and a cleaning ring; the limiting shell is disposed on the inner wall of the secondary combustion chamber pipe, and the cleaning ring is slidably connected inside the limiting shell; a cleaning plate is connected to the outer wall of the cleaning ring, and the cleaning plate abuts against the inner wall of the secondary combustion chamber pipe. The lifting end is disposed on the outer wall of the secondary combustion chamber pipe and is used to drive the cleaning ring to move along the height direction of the secondary combustion chamber pipe and to clean the inner wall of the secondary combustion chamber pipe. The material conveying end is located inside the base and is used to transport the mud and dirt cleaned by the cleaning ring.

2. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The base is provided with a communication port at the connection between it and the secondary combustion chamber pipe, and the base is also provided with a discharge port.

3. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The limiting shell includes a first shell and three second shells, which are arranged in a cross shape on the inner wall of the secondary combustion chamber pipe, and a cleaning ring is slidably connected inside the first shell and the second shells.

4. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 3, characterized in that: The first housing has a through hole, and the lifting end is disposed in the through hole.

5. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The outer wall of the cleaning ring has several chambers, and each chamber is circumferentially arranged with multiple spring dampers, the ends of which are connected to a cleaning plate.

6. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 4, characterized in that: The outer wall of the cleaning ring is provided with a connecting block, which includes a first block and three second blocks. The first block and the three second blocks are arranged in a cross shape on the outer wall of the cleaning ring. The first block is slidably connected to the first housing, and the second blocks are slidably connected to the second housing.

7. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 6, characterized in that: One end of the first block passes through the through hole and is connected to a ball screw block. The ball screw block is threadedly connected to the lifting end. The lifting end includes a housing disposed outside the secondary combustion chamber pipe. A first motor is connected to the upper end of the housing. The output end of the first motor passes through the housing and is connected to a ball screw. The ball screw is threadedly connected to the ball screw block.

8. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The inner wall of the cleaning ring is inclinedly arranged with several turbulence plates, and the turbulence plates are ceramic-based composites.

9. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The number of cleaning rings is at least three, and the three cleaning rings are connected by multiple fixed posts.

10. The secondary combustion chamber of an electrically heated preheating incinerator according to claim 1, characterized in that: The material conveying end includes a second motor and a spiral conveying shaft; the second motor is located outside the base, and the output end of the second motor extends into the base and is connected to the spiral conveying shaft.

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