Incineration flue gas dust removal mechanism
By combining a bidirectional rotating dust removal mechanism with a spraying cleaning agent, the problem of damaged dust cleaning tools on the inner wall of the chimney was solved, achieving efficient and safe dust cleaning and extending the service life of the incinerator.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI UNIVERSITY
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing flue gas dust removal devices often use high-speed tools to damage the chimney structure when cleaning dust from the inner wall of the chimney, and the dust adheres strongly, affecting the service life of the incinerator.
The cleaning mechanism adopts a two-way rotating method, combined with the spraying of cleaning agent. It uses an electric telescopic rod to drive the cleaning plate and rubber scraper to clean the dust on the inner wall, and sprays water through the water pipe to reduce the adhesion of dust.
It effectively protects the inner wall of the chimney, extends the service life of the incinerator, improves the safety and cleaning efficiency of the dust removal process, and reduces the risk of electric spark explosions.
Smart Images
Figure CN224415163U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of flue gas dust removal technology, specifically a dust removal mechanism for incineration flue gas. Background Technology
[0002] Incineration flue gas dust removal refers to the technology for removing particulate matter (dust, fly ash, etc.) from the flue gas generated during the incineration process, such as the incineration of municipal solid waste, industrial waste, and medical waste. It is one of the key links in incineration pollution control.
[0003] When incinerating large quantities of waste, the waste is transported to specialized waste treatment plants and processed in large incinerators. The incinerator chimney is a crucial component of the incineration system, its core function being to systematically release the flue gas generated during incineration into the atmosphere. It is typically designed as a slender, hollow column. The narrow inner cavity leads to the accumulation of dust particles from the flue gas on the chimney's inner wall after prolonged incineration. Furthermore, some types of waste produce highly adhesive dust particles after incineration. Cleaning this dust usually requires high-speed tools. However, a significant portion of chimneys are constructed of concrete, and after repeated cleaning, the cleaning tools can severely abrade the inner wall, causing considerable damage and affecting the chimney's structural stability, thus reducing the overall service life of the incinerator. Therefore, a flue gas dust removal mechanism for incineration is proposed. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dust removal mechanism for incineration flue gas.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A dust removal mechanism for incineration flue gas includes a wall, a fixed frame is installed inside the wall, a drive motor is fixed to the bottom center of the fixed frame by bolts, and a dust removal mechanism is installed outside the drive motor.
[0007] The dust removal mechanism includes an electric telescopic rod connected to the output end of a drive motor. The bottom of the fixed frame is connected to an outer ring via a metal rod. A slider is slidably connected to the inner side of the outer ring. A changeover switch is installed inside the outer ring. A fixing block is fixedly connected to the outer side of the electric telescopic rod. A dust removal hanging plate is welded and fixed to the lower end of the electric telescopic rod.
[0008] As a further description of the above technical solution, the inner side of the outer ring is provided with a groove that matches the slider, and limit blocks are symmetrically arranged on the outer side of the slider. The limit blocks are fixed to the inner wall of the groove by a return spring.
[0009] As a further description of the above technical solution, the exposed end of the slider is provided with an inclined surface, and the fixing block is at the same horizontal height as the slider.
[0010] As a further description of the above technical solution, the changeover switch corresponds to the position of the slider, and the changeover switch is electrically connected to the drive motor.
[0011] As a further description of the above technical solution, a bracket is fixedly connected to the side of the cleaning panel near the wall, and a rubber scraper is inserted inside the bracket.
[0012] As a further description of the above technical solution, a water supply pipe is fixed to the bottom of the fixing frame by a buckle, and nozzles facing the inner wall of the wall are equidistantly arranged on the outer side of the water supply pipe.
[0013] As a further description of the above technical solution, the middle part of the dust removal hanging plate is a hollow mounting column, and the inside of the mounting column is provided with a high-temperature resistant and high-hardness plastic filler block.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. In this utility model, the bidirectional rotation cleaning can achieve the effect of high-speed unidirectional ash removal at a relatively low rotation speed, which can reduce the damage to the inner wall of the incinerator chimney caused by the cleaning tool during the cleaning process, and can play a protective role for the incinerator during the dust removal process, effectively extending the service life of the incinerator.
[0016] 2. In this utility model, the auxiliary cleaning agent sprayed from the nozzles on the outside of the water pipe facing the inner wall of the wall can flow down along the inner wall of the chimney, and the nozzles are evenly distributed on the outside of the water pipe. The water flow sprayed from the nozzles can be evenly sprayed on the inner wall of the chimney. Spraying the cleaning agent can reduce the adhesion of dust and play an auxiliary cleaning role. On the other hand, it can also moisten the air inside the wall, reduce the floating dust in the air, avoid the explosion accident caused by electric sparks when the motor starts, and improve the safety of the dust removal process. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram showing the connection relationship between the slider and the outer ring of this utility model;
[0019] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 This is a schematic diagram of the internal structure of the mounting column of this utility model.
[0021] Reference numerals: 1. Wall; 2. Fixture; 3. Drive motor;
[0022] The dust removal mechanism includes: 41. Electric telescopic rod; 42. External hanging ring; 43. Slider; 44. Changeover switch; 45. Fixing block; 46. Dust removal hanging plate;
[0023] 51. Limiting block; 52. Card holder; 53. Rubber scraper; 54. Water pipe; 55. Mounting column. Detailed Implementation
[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0025] Please refer to the appendix carefully. Figures 1-4 As shown, this utility model provides a technical solution: a dust removal mechanism for incineration flue gas, including a wall 1, a fixing frame 2 installed inside the wall 1, a drive motor 3 fixed to the bottom center of the fixing frame 2 by bolts, and a dust removal mechanism installed on the outside of the drive motor 3.
[0026] The dust removal mechanism includes an electric telescopic rod 41 connected to the output end of the drive motor 3. An outer ring 42 is connected to the bottom of the fixing frame 2 via a metal rod. A slider 43 is slidably connected to the inner side of the outer ring 42. The slider 43 and the fixing block 45 are at the same horizontal height. When the drive motor 3 drives the electric telescopic rod 41 to rotate, the fixing block 45 on the outer side of the electric telescopic rod 41 will contact the slider 43. A groove adapted to the slider 43 is provided on the inner side of the outer ring 42. The slider 43 is connected to a spring inside the groove via a protruding limiting block 51 on its outside, allowing the slider 43 to move within the groove of the outer ring 42 when compressed. A changeover switch 44 is installed inside the outer ring 42, corresponding to the position of the slider 43. During the movement of the slider 43… The electric telescopic rod 41 intermittently contacts the changeover switch 44, which is used to change the rotation direction of the drive motor 3. Since the changeover switch 44 is electrically connected to the drive motor 3, the rotation direction of the drive motor 3 changes. Therefore, during the dust cleaning process, the electric telescopic rod 41 can drive the dust cleaning plate 46 to move up and down inside the wall 1 to clean the dust attached to the inside of the wall 1. The dust cleaning plate 46 fixed at the lower end of the electric telescopic rod 41 is in a bidirectional rotation state. Bidirectional rotation cleaning can achieve the effect of high-speed unidirectional dust cleaning at a smaller speed, which can reduce the damage to the inner wall of the incinerator chimney caused by the cleaning tools during the cleaning process. It can play a protective role for the incinerator during the dust removal process and effectively extend the service life of the incinerator.
[0027] In one embodiment of this utility model, such as Figure 3 As shown, a bracket 52 is fixedly connected to the side of the dust removal mounting plate 46 near the wall. A rubber scraper 53 is inserted inside the bracket 52. The rubber scraper 53 will age and wear out over a long period of time in a high-temperature environment. It can be easily replaced by inserting it into the bracket 52. The middle part of the dust removal mounting plate 46 is a hollow mounting column 55. The mounting column 55 is filled with a high-temperature resistant and high-hardness plastic filler block. By placing filler in the hollow mounting column 55, the overall weight of the mounting column 55 is reduced while ensuring the deformation resistance of the mounting column 55.
[0028] In one embodiment of this utility model, such as Figure 1 As shown, a water supply pipe 54 is fixed to the bottom of the mounting bracket 2 by a buckle. The water supply pipe 54 is connected to an external water pump. After being pressurized by the water pump, the water flow can reach the water supply pipe 54, which is located at a higher position, so that the water flow sprayed from the water supply pipe 54 has a greater impact force. Since the chimney used in the incinerator is generally long and columnar, the auxiliary cleaning agent sprayed from the nozzles on the outside of the water supply pipe 54 towards the inner wall of the wall 1 can flow down along the inner wall of the chimney. The nozzles are evenly distributed on the outside of the water supply pipe 54, and the water flow sprayed from the nozzles can be evenly sprayed on the inner wall of the chimney wall 1. Spraying the cleaning agent can reduce the adhesion of dust and play an auxiliary cleaning role. On the other hand, it can also moisten the air inside the wall 1, reduce the floating dust in the air, avoid the explosion accident caused by the electric spark when the motor starts, and improve the safety of the dust removal process.
[0029] The specific operation process of this utility model is as follows:
[0030] Before starting the dust removal work, a cleaning agent is sprayed inside the chimney using the water pipe 54 to reduce floating dust inside the incinerator and reduce the adsorption of dust inside the chimney wall 1, facilitating the dust removal work. After spraying a sufficient amount of cleaning agent, the drive motor 3 installed on the mounting bracket 2 is powered on. The output shaft of the drive motor 3 starts to drive the electric telescopic rod 41 to rotate. A slider 43 is slidably connected to the inner side of the outer ring 42. The slider 43 and the fixed block 45 are at the same horizontal height. When the drive motor 3 drives the electric telescopic rod 41 to rotate, the fixed block 45 on the outer side of the electric telescopic rod 41 will contact the slider 43. A groove adapted to the slider 43 is opened on the inner side of the outer ring 42. The slider 43 is connected to the spring inside the groove through its external protruding limiting block 51, so that the slider 43 can move inside the groove of the outer ring 42 when squeezed. The outer ring 42 is equipped with a changeover switch 44, which corresponds to the position of the slider 43. During the movement of the slider 43, it will intermittently contact the changeover switch 44, and the drive motor 3 can rotate bidirectionally. The changeover switch 44, which is electrically connected to the drive motor 3, can change the rotation direction of the drive motor 3 by pressing it once or twice. Since the changeover switch 44 is electrically connected to the drive motor 3, the rotation direction of the drive motor 3 changes. Therefore, during the dust cleaning process, the dust removal hanging plate 46 fixed at the lower end of the electric telescopic rod 41 is in a bidirectional rotation state. Bidirectional rotation cleaning can achieve the effect of high-speed unidirectional dust removal at a lower speed, which can reduce the damage to the inner wall of the incinerator chimney caused by the cleaning tools during the cleaning process. It can play a protective role for the incinerator during the dust removal process and effectively extend the service life of the incinerator.
[0031] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. A dust removal mechanism for incineration flue gas, comprising a wall (1), wherein a fixing frame (2) is installed inside the wall (1), and a drive motor (3) is bolted to the center of the bottom of the fixing frame (2), characterized in that, A dust removal mechanism is installed on the outside of the drive motor (3); The dust removal mechanism includes an electric telescopic rod (41) connected to the output end of the drive motor (3). The bottom of the fixed frame (2) is connected to an outer ring (42) via a metal rod. A slider (43) is slidably connected to the inner side of the outer ring (42). A changeover switch (44) is installed inside the outer ring (42). A fixing block (45) is fixedly connected to the outer side of the electric telescopic rod (41). A dust removal hanging plate (46) is welded and fixed to the lower end of the electric telescopic rod (41).
2. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The inner side of the outer ring (42) is provided with a sliding groove that is compatible with the slider (43). The outer side of the slider (43) is symmetrically provided with limit blocks (51). The limit blocks (51) are connected to the inner wall of the sliding groove through a return spring.
3. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The exposed end of the slider (43) is provided with an inclined surface, and the fixing block (45) is at the same horizontal height as the slider (43).
4. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The changeover switch (44) corresponds to the position of the slider (43), and the changeover switch (44) is electrically connected to the drive motor (3).
5. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The dust removal hanging plate (46) is fixedly connected to a bracket (52) on the side near the wall, and a rubber scraper (53) is inserted inside the bracket (52).
6. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The bottom of the fixing frame (2) is fixed with a water supply pipe (54) by a buckle, and the water supply pipe (54) has nozzles equidistantly arranged on the outside of the water supply pipe (54) facing the inner wall of the wall (1).
7. The incineration flue gas dust removal mechanism according to claim 1, characterized in that, The dust removal hanging plate (46) includes a hollow mounting column (55), and the mounting column (55) is provided with a high temperature and high hardness resistant plastic filler block inside.