Flue cleaning device

Abstract

This invention belongs to the field of flue cleaning technology, specifically a flue cleaning device, including a flue shell. The flue positioning device includes a base plate with protective shells on both sides. A top column is fixed to the upper surface of the base plate, and four cleaning components arranged in a circular array are fixed to the circumferential surface of the top column. Each cleaning component corresponds to the inner wall of the flue on each side. Each cleaning component includes a scraper fixed to the circumferential surface of the top column; an electric push rod fixed to the upper surface of the base plate; a push plate fixed to the output end of the electric push rod; and a cleaning plate slidably disposed on the upper surface of the scraper. An auxiliary plate is slidably disposed on the lower surface of the cleaning plate, and the bottom end of the auxiliary plate has an inclined surface adapted to the push plate. By designing the cleaning components, the problem of some highly adhesive ash continuously accumulating and adhering to the top of the scraper is solved.

Description

Technical Field

[0001] This invention relates to the field of flue cleaning technology, and in particular to a flue cleaning device. Background Technology

[0002] During the electric arc furnace (EAF) smelting process, dust is drawn from the four flue holes in the furnace shell. Slag splashes from the molten steel surface during oxygen blowing via the oxygen lance on the furnace sidewalls and adheres to these flue holes. Prolonged slag accumulation affects the airflow and velocity within the flue, impacting dust removal parameters in the workshop. Furthermore, the reduced airflow velocity leads to ash buildup within the dust removal pipes.

[0003] A patent application with publication number CN218532174U discloses a novel flue cleaning device. By placing the entire cleaning device inside the flue, a pump suction mechanism and an air outlet assembly are used to drive rollers to move the entire device inside the flue. At the same time, a pneumatic rod is used to adjust the extension and retraction of the flat brush mechanism to fit against the inner wall of the flue, which can adaptively adjust the cleaning force inside the flue, improve the cleaning flexibility of the device, and thus ensure the cleaning effect of the flue.

[0004] The above solution still has some problems in practical application. When the scraper is used to scrape and clean the inner wall of the flue, the slag and ash have been fixed on the inner wall of the flue after a long period of accumulation. When the scraper is working, some sticky ash will continue to accumulate and adhere to the top of the scraper, thereby reducing the scraping effect of the scraper and resulting in poor cleaning effect of the entire flue. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the limitations of the prior art.

[0006] To solve the above-mentioned technical problems, the present invention provides a flue cleaning device. The cleaning device is placed inside a flue, the flue including a flue shell, the flue positioning device including a base plate, protective shells provided on both sides of the base plate, a top column fixed to the upper surface of the base plate, and four cleaning components arranged in a circular array fixed to the circumferential surface of the top column. Each cleaning component corresponds to the inner wall of the flue on each side, and each cleaning component includes a scraper fixed to the circumferential surface of the top column.

[0007] It also includes an electric actuator fixed to the upper surface of the base plate;

[0008] A push plate fixed to the output end of the electric actuator;

[0009] A cleaning plate is slidably disposed on the upper surface of the scraper, and an auxiliary plate is slidably disposed on the lower surface of the cleaning plate. The bottom end of the auxiliary plate is provided with an inclined surface adapted to the push plate.

[0010] In one embodiment of the present invention, the surface of the scraper has two through grooves, the lower surface of the cleaning plate is fixedly connected to a slider, the lower surface of the slider is fixedly connected to a limiting block, and the limiting block is fixedly connected to an auxiliary plate.

[0011] In one embodiment of the present invention, a limiting plate is fixedly attached to the upper surface of the scraper, a first groove is provided between the limiting plate and the scraper, the cleaning plate slides in the first groove, and a screw and bolt are provided on the circumferential surface of the top column corresponding to the position of each scraper for the scraper to be detachable and replaceable.

[0012] In one embodiment of the present invention, two fixing rods are fixedly connected to the end of the limiting plate near the end of the cleaning plate that slides out. A cleaning brush roller is rotatably provided on the side of the two fixing rods that are close to each other. The circumferential surface of the cleaning brush roller is provided with a plurality of plastic bristles for cleaning the cleaning plate.

[0013] In one embodiment of the present invention, a dust-reducing component is further provided on one side of the push plate, the dust-reducing component including a plurality of first spring pieces fixedly connected to one side of the push plate;

[0014] A baffle is fixed to the upper surface of the base plate, and each of the cleaning components is provided with a baffle on one side corresponding to the scraper;

[0015] A fixing plate is fixed to the side of the baffle near the scraper, and the end of each first spring piece away from the push plate is fixed to the fixing plate;

[0016] A fixing plate is fixed to the upper surface of the first spring sheet, a piston rod is fixed to the upper surface of the fixing plate, and a piston plate is fixed to the upper surface of the piston rod;

[0017] And a spray box fixed to the side of the fixed plate near the push plate, wherein the piston rod and piston plate perform piston movement inside the spray box, thereby causing the spray box to spray water mist to suppress dust inside the flue being cleaned.

[0018] In one embodiment of the present invention, a plurality of positioning blocks are fixedly connected to one side of the push plate. The number of positioning blocks is the same as that of the first spring piece, and each spring piece is disposed below the first spring piece so that the first spring piece can only deform upward.

[0019] In one embodiment of the present invention, protective shells are provided on both sides of the base plate, and a first bevel gear is provided inside the protective shell. One side of the first bevel gear is fixedly connected to the output end of the motor inside the base plate. The first bevel gear meshes with two second bevel gears. A rotating shaft is fixedly connected to one side of each second bevel gear. A rotating wheel is fixedly connected to the end of the rotating shaft away from the second bevel gear. A positioning frame is provided on the base plate at the position of the rotating wheel. A positioning groove is opened in the positioning frame. The rotating wheel is placed in the positioning groove. The rotating shaft passes through one side of the positioning frame and is fixedly connected to the rotating wheel.

[0020] In one embodiment of the present invention, a fixed frame is rotatably connected to the middle of each of the rotating shafts, one end of the fixed frame is fixedly connected to the base plate, and the rotating shaft rotatably passes through the fixed frame.

[0021] In one embodiment of the present invention, a rubber ring is fixed to the circumferential surface of each of the rotors, and the rubber ring is used to increase the friction between the rotor and the inner wall of the flue housing.

[0022] In one embodiment of the present invention, a second groove is provided on the lower surface of the base plate, and a fan body is rotatably disposed in the second groove. The fan body is fixedly connected to the motor output end in the base plate to assist the cleaning device in moving upward.

[0023] The advantages of the above-mentioned technical solution of the present invention compared with the prior art are as follows:

[0024] 1. The flue cleaning device of the present invention, through the setting of the cleaning components, addresses the issue that during the cleaning operation of the scraper, a large amount of sticky ash adheres to the upper surface of the scraper at the point where it is in close contact with the inner wall of the flue, thus reducing the scraping effect of the scraper. Therefore, by activating the electric push rod, the electric push rod drives the push plate at its output end, thereby squeezing the auxiliary plate. The inclined surface at the bottom of the auxiliary plate is in close contact with the inclined surface of the push plate. The pushing force of the push plate causes the auxiliary plate to be subjected to longitudinal and lateral sliding forces, thereby causing the cleaning plate to slide on the upper surface of the scraper. The cleaning plate cleans and scrapes away the sticky ash at the end of the scraper near the inner wall of the flue. The continuous back-and-forth pushing of the electric push rod, through the cooperation of the push plate and the auxiliary plate, causes the cleaning plate to continuously clean the scraper, improving the scraping effect of the scraper in removing slag and ash.

[0025] 2. The flue cleaning device of the present invention, through the setting of the dust suppression component, when the electric push rod pushes the push plate to make the cleaning plate work, it will squeeze several first spring pieces on one side of the push plate. After being squeezed, the spring pieces will deform upward, thereby causing the fixing piece fixed to the upper surface of the first spring piece to also move upward. The fixing piece is a thin elastic steel sheet, which then drives the piston rod at the top of the fixing piece. The piston rod drives the piston plate fixed to its top, thereby making piston movement in the spray box. This causes the water mist in the spray box to be sprayed in the direction of the ash and slag sliding down due to pressure. And because of the baffle, the ash will not fall onto the bottom plate, thereby achieving the effect of dust suppression inside the flue and preventing a large amount of dust from directly floating out of the flue inlet and polluting the environment. Attached Figure Description

[0026] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0027] Figure 1 This is a perspective view of Embodiment 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the cleaning device of the present invention;

[0029] Figure 3 This is a schematic diagram of the cleaning component of the present invention;

[0030] Figure 4 yes Figure 3 Enlarged view of point A;

[0031] Figure 5 This is a schematic diagram of the dust suppression component of the present invention;

[0032] Figure 6 This is a partial structural schematic diagram of the dust suppression component of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0034] Figure 8 This is a schematic diagram of the fan blade structure of the present invention;

[0035] Explanation of markings on the attached diagrams in the instruction manual: 1. Flue casing;

[0036] 2. Base plate; 21. Top column; 22. Screw; 23. Bolt; 24. Scraper; 25. Electric actuator; 26. Push plate; 27. Limiting plate; 28. First groove; 29. ​​Cleaning plate; 210. Baffle; 211. Cleaning brush roller; 212. Fixing rod; 213. Slide groove; 214. Slider; 215. Limiting block; 216. Auxiliary plate; 217. Fixing plate; 218. Positioning block; 219. First spring; 220. Fixing plate; 221. Piston rod; 222. Piston plate; 223. Spray box;

[0037] 3. Protective shell; 31. First bevel gear; 32. Second bevel gear; 33. Fixing frame; 34. Positioning frame; 35. Positioning groove; 36. Rotating wheel; 37. Rubber ring; 38. Rotating shaft;

[0038] 4. Second tank; 41. Fan blade. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Example 1

[0040] Reference Figures 1 to 8 As shown, an embodiment of the present invention provides a flue cleaning device: the cleaning device is placed inside a flue, the flue includes a flue housing 1, the flue cleaning device includes a base plate 2, a top column 21 is fixedly connected to the upper surface of the base plate 2, and four cleaning components arranged in a circular array are fixedly connected to the circumferential surface of the top column 21, each cleaning component corresponding to the inner wall of the flue on each side, each cleaning component including a scraper 24 fixedly connected to the circumferential surface of the top column 21; it also includes an electric push rod 25 fixedly connected to the upper surface of the base plate 2; and a scraper 24 fixedly connected to the electric push rod 25. The push plate 26 at the outlet; the cleaning plate 29 is slidably disposed on the upper surface of the scraper 24, and the auxiliary plate 216 is slidably disposed on the lower surface of the cleaning plate 29. The bottom end of the auxiliary plate 216 is provided with an inclined surface that is slidably connected to the push plate 26. An "I"-shaped block is built between the inclined surface of the auxiliary plate 216 and the push plate 26. So that after the cleaning plate 29 moves to the blade position of the scraper 24, the push plate 26 is pulled to the side closer to the bottom plate 2 by the electric push rod 25, and the cleaning plate 29 can be pulled back to the initial position by the auxiliary plate 216.

[0041] Specifically, when using this flue cleaning device to clean the accumulated slag and ash in the flue, the operator first places the device into the flue opening and then drives it upwards along the inner wall of the flue. As the device moves upwards, several scrapers 24 fixed to the circumference of the top column 21 adhere closely to the inner wall of the flue, scraping away the accumulated slag and ash. However, due to the long-term accumulation of ash and other dirt, the ash has a certain degree of adhesion. As the scrapers 24 continue to clean along the inner wall of the flue, a large amount of sticky ash adheres to the upper surface of the scrapers 24 where they are in close contact with the inner wall, reducing the scraping effect of the scrapers 24. To ensure the cleaning effect of the scrapers 24, it is necessary to trim the tips of the scrapers 24. To perform cleaning, the electric push rod 25 is activated, which drives the push plate 26 at its output end, thereby squeezing the auxiliary plate 216. The inclined surface at the bottom of the auxiliary plate 216 is in close contact with the inclined surface of the push plate 26. The pushing force of the push plate 26 causes the auxiliary plate 216 to drive the cleaning plate 29 to slide towards the upper surface end of the scraper 24. The cleaning plate 29 cleans and scrapes away the sticky ash accumulated on the end of the scraper 24 near the inner wall of the flue. The continuous back-and-forth pushing of the electric push rod 25, through the cooperation of the push plate 26 and the auxiliary plate 216, makes the cleaning plate 29 continuously clean the scraper 24, improving the scraping effect of the scraper 24 in removing slag and ash. This solves the problem that when the scraper is working, some sticky ash will continuously accumulate and adhere to the top of the scraper, thereby reducing the subsequent scraping effect of the scraper and resulting in a poor cleaning effect of the entire flue.

[0042] Reference Figure 3 As shown, in this embodiment, the surface of the scraper 24 has two through grooves 213. The lower surface of the cleaning plate 29 is fixedly connected to a slider 214. The lower surface of the slider 214 is fixedly connected to a limiting block 215. The limiting block 215 is slidably connected to the lower surface of the scraper 24. The limiting block 215 is fixedly connected to the auxiliary plate 216.

[0043] Specifically, when the auxiliary plate 216 is pushed by the push plate 26, the auxiliary plate 216 drives the top slider 214, causing the slider 214 to slide within the groove 213. The slider 214 is fixedly connected to the cleaning plate 29. In order to make the cleaning plate 29 closely adhere to the scraper 24 and clean the scraper 24 better, a limiting block 215 is fixedly connected to the lower surface of the slider 214. The limiting block 215 is fixed between the slider 214 and the auxiliary plate 216. The limiting block 215 limits the slider 214 so that it can only move along the groove 213 and cannot leave the groove 213. This allows the cleaning plate 29 to also slide closely against the upper surface of the scraper 24, thereby achieving the effect that the cleaning plate 29 can better clean the scraper 24.

[0044] Reference Figures 2 to 4As shown, in this embodiment, a limiting plate 27 is fixedly attached to the upper surface of the scraper 24. A first groove 28 is provided between the limiting plate 27 and the scraper 24. The cleaning plate 29 slides in the first groove 28. The top post 21 is fixed to the scraper 24 by a screw 22 and a bolt 23, which is used for the detachable replacement of the scraper 24.

[0045] Specifically, when cleaning the upper surface of the scraper 24 using the cleaning plate 29, in order to protect the cleaning plate 29, a limiting plate 27 is fixedly attached to the upper surface of the scraper 24, thus forming a first groove 28 between the limiting plate 27 and the scraper. In the initial non-working state, the cleaning plate 29 is just set in the first groove 28. After starting the electric push rod 25, the cleaning plate 29 slides out of the first groove 28 through the cooperation of the push plate 26 and the auxiliary plate 216. However, when the cleaning plate 29 slides to the point where it abuts against the inner wall of the flue at the same time as the scraper 24, one end of the cleaning plate 29 is still partially not slid out of the first groove 28, thereby achieving the effect of protecting the cleaning plate 29 and facilitating its long-term use. At the same time, the scraper 24 is fixed to the circumferential surface of the top column 21 by the screw 22 and the bolt 23, which makes it easy to disassemble and replace the scraper 24 directly after it has been worn for a long time.

[0046] Reference Figure 3 As shown, in this embodiment, two fixing rods 212 are fixedly connected to one end of the limiting plate 27 near the end of the cleaning plate 29. A cleaning brush roller 211 is rotatably arranged between the two fixing rods 212. The circumferential surface of the cleaning brush roller 211 is provided with a number of plastic bristles for cleaning the cleaning plate 29.

[0047] Specifically, after the cleaning plate 29 cleans the tip of the scraper 24, some dust or residue may fall onto its upper surface. By setting two fixing rods 212 at one end of the limiting plate 27, and then rotating a cleaning brush roller 211 on the side where the two fixing rods 212 are close to each other, the upper surface of the cleaning plate 29 can be simply cleaned when the cleaning plate 29 slides out and retracts, preventing the cleaning plate 29 from getting stuck in the first groove 28 due to the accumulation of dust, thereby extending the service life of the cleaning plate 29. Example 2

[0048] Reference Figure 5 and Figure 6As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a dust-reducing component is also provided on one side of the push plate 26, the dust-reducing component includes a plurality of first spring pieces 219 fixedly attached to one side of the push plate 26; a baffle 210 fixedly attached to the upper surface of the base plate 2, the cleaning component corresponding one-to-one with the baffle 210; a fixing plate 217 fixedly attached to the side of the baffle 210 near the scraper 24, the end of each first spring piece 219 away from the push plate 26 is fixedly attached to the fixing plate 217; a fixing piece 220 fixedly attached to the upper surface of the first spring piece 219, the fixing piece 220... A piston rod 221 is fixed to the upper surface, and a piston plate 222 is fixed to the upper surface of the piston rod 221; and a spray box 223 is fixed to the side of the fixed plate 217 near the push plate 26. Several nozzles are provided on the side of the spray box 223 near the baffle 210. The push plate 26 pushes the first spring 219 to bend its middle part upward repeatedly. The first spring 219 pushes the piston rod 221 to make the piston plate 222 move like a piston in the spray box 223, so that the spray box 223 repeatedly sprays water mist from the nozzles to suppress the dust falling from the scraper 24.

[0049] Specifically, while the electric actuator 25 pushes the push plate 26 to make the cleaning plate 29 work, it squeezes several first spring pieces 219 on one side of the push plate 26. After being squeezed, the spring pieces will deform upward, causing the fixing piece 220 fixed to the upper surface of the first spring piece 219 to also move upward. The fixing piece 220 is a thin elastic steel sheet. Then, it drives the piston rod 221 at the top of the fixing piece 220. The piston rod 221 drives the piston plate 222 fixed at its top, thus making piston movement in the spray box 223. This causes the water mist in the spray box 223 to be sprayed in the direction of the ash and slag sliding down, and the baffle 210 prevents the ash from falling onto the bottom plate 2, thereby achieving the effect of dust reduction inside the flue and preventing a large amount of dust from directly floating out of the flue inlet and polluting the environment.

[0050] Reference Figure 5 and Figure 6 As shown, in this embodiment, a number of positioning blocks 218 are fixedly connected to one side of the push plate 26. The number of positioning blocks 218 is the same as that of the first spring piece 219, and each spring piece is located below the first spring piece 219 so that the first spring piece 219 can only deform upward.

[0051] Specifically, when the first spring piece 219 deforms between the fixed plate 217 and the push plate 26 after being pushed by the push plate 26, in order to fix the deformation direction of the first spring piece 219, a positioning block 218 is provided below the first spring piece 219 on one side of the push plate 26. Each positioning block 218 is located directly below the first spring piece 219, and the size of the positioning block 218 is slightly larger than half of the first spring piece 219. Therefore, when the first spring piece 219 is subjected to compressive force, it cannot deform downward due to the restriction of the positioning block 218, and can only generate an upward deformation force, thereby driving the piston rod 221 and the piston plate 222 to perform piston movement.

[0052] Reference Figure 7 As shown, in this embodiment, protective shells 3 are provided on both sides of the base plate 2. A first bevel gear 31 is provided inside the protective shell 3. A motor is provided inside the base plate 2. One side of the first bevel gear 31 is fixedly connected to the output end of the motor. The first bevel gear 31 meshes with two second bevel gears 32. A rotating shaft 38 is fixedly connected to one side of each second bevel gear 32. A rotating wheel 36 is fixedly connected to the end of the rotating shaft 38 away from the second bevel gear 32. A positioning frame 34 is provided on the base plate 2 at the position corresponding to the rotating wheel 36. A positioning groove 35 is opened in the positioning frame 34. The rotating wheel 36 is placed in the positioning groove 35. One end of the rotating shaft 38 passes through the positioning frame 34 and is rotatably connected to the positioning frame 34.

[0053] Specifically, when using this cleaning device, the drive component inside the protective shell enables the entire cleaning device to move along the inner wall of the flue. First, the built-in motor in the base plate 2 is started, driving the first bevel gears 31 on both sides of the base plate 2. The rotation of the first bevel gears 31 drives the two second bevel gears 32 that mesh with them. The two second bevel gears 32 are set on both sides of the first bevel gears 31 through the rotating shafts 38. The end of each rotating shaft 38 away from the second bevel gears 32 rotates through the positioning frame 34 and is fixedly connected to the rotating wheel 36 in the positioning groove 35. When the motor starts, the four rotating wheels 36 on both sides rotate, thereby rotating along the inner wall of the flue. When moving to the bend of the flue, the rotating wheels 36 on both sides are controlled to rotate at different speeds. That is, the outermost rotating wheel 36 rotates faster due to the drive of the motor, with a faster linear velocity and a constant angular velocity. This allows the cleaning device to better adapt to the flue when passing through the bend and to clean the bend in the flue.

[0054] Reference Figure 7 As shown, in this embodiment, a fixed frame 33 is rotatably connected to the middle of each rotating shaft 38. One end of the fixed frame 33 is fixedly connected to the base plate 2, and the rotating shaft 38 rotates through the fixed frame 33.

[0055] Specifically, a fixed frame 33 is provided in the middle of each rotating shaft 38. One end of the fixed frame 33 is fixedly connected to the base plate 2, while the other end of the fixed frame 33 is rotated through by the rotating shaft 38, thereby achieving the effect of limiting the rotating shaft 38 and enabling the rotating shaft 38 to drive the rotating wheel 36 to rotate with better stability.

[0056] Reference Figure 7 As shown, in this embodiment, a rubber ring 37 is fixed to the circumferential surface of each rotor 36. The rubber ring 37 is used to increase the friction between the rotor 36 and the inner wall of the flue housing 1.

[0057] Specifically, when the rotor 36 rotates, in order to enable the rotor 36 to rotate better along the inner wall of the flue, and to prevent the rotor 36 from moving on the inner wall of the flue and causing excessive wear, thus affecting the normal operation of the cleaning device, a rubber ring 37 is fixedly connected to the circumferential surface of the rotor 36 to increase the friction between the rotor 36 and the inner wall of the flue and to protect the rotor 36 body.

[0058] Reference Figure 8 As shown, in this embodiment, a second groove 4 is provided on the lower surface of the base plate 2. A fan body 41 is rotatably arranged in the second groove 4. The fan body 41 is fixedly connected to the motor output end in the base plate 2 to assist the cleaning device in moving upward.

[0059] Specifically, by providing a fan body 41 on the lower surface of the base plate 2, when the cleaning device moves upward via the drive component, in order to enable the cleaning device to move upward better, the motor inside the base plate 2 is started to drive the fan body 41 to rotate at high speed, thereby giving the cleaning device an upward thrust, achieving the effect of the auxiliary rotating wheel 36 driving the cleaning device to move along the inner wall of the flue.

[0060] Working principle: When using this flue cleaning device to clean accumulated slag and ash in the flue, the operator first places the device into the flue opening, then activates the drive mechanism to move the cleaning device upwards along the inner wall of the flue. As the device moves upwards, several scrapers 24 fixed to the circumference of the top column 21 adhere tightly to the inner wall of the flue. This upward movement of the cleaning device scrapes away the accumulated slag and ash. However, due to the long-term accumulation of ash and other dirt, the ash has a certain degree of adhesion. As the scrapers 24 continuously clean along the inner wall of the flue, they adhere to the large amount of sticky ash, thus causing the scrapers 24 to remove the accumulated ash. As the cleaning effect decreases, it is necessary to clean the tip of the scraper 24 in order to ensure its cleaning effect. Therefore, by activating the electric push rod 25, the push plate 26 at its output end is driven to squeeze the auxiliary plate 216. The inclined surface at the bottom of the auxiliary plate 216 is in close contact with the inclined surface of the push plate 26. The pushing force of the push plate 26 causes the auxiliary plate 216 to be subjected to longitudinal and lateral pushing forces, thereby causing the cleaning plate 29 to slide on the upper surface of the scraper 24. The cleaning plate 29 cleans and scrapes away the sticky ash accumulated on the end of the scraper 24 near the inner wall of the flue. The continuous back-and-forth pushing of the electric push rod 25, through the cooperation of the push plate 26 and the auxiliary plate 216, makes the cleaning plate 29 continuously clean the scraper 24, thereby improving the scraping effect of the scraper 24 in removing slag and ash.

[0061] When cleaning the upper surface of the scraper 24 using the cleaning plate 29, a limiting plate 27 is fixed to the upper surface of the scraper 24 to protect the cleaning plate 29. This creates a first groove 28 between the limiting plate 27 and the scraper. Initially, when the cleaning plate 29 is not in operation, it is positioned within the first groove 28. After activating the electric push rod 25, the cleaning plate 29 slides out of the first groove 28 through the coordinated transmission of the push plate 26 and the auxiliary plate 216. However, when the cleaning plate 29 slides to the point where it and the scraper 24 simultaneously abut against the inner wall of the flue, a portion of one end of the cleaning plate 29 remains within the first groove 28, thus protecting the cleaning plate 29 and facilitating its long-term use. The scraper 24 is fixed to the circumferential surface of the top column 21 by the screw 22 and bolt 23, which makes it easy to disassemble and replace the scraper 24 directly after it has been worn for a long time. At the same time, after the cleaning plate 29 cleans the tip of the scraper 24, some dust or residue may fall off its upper surface. By setting two fixing rods 212 at one end of the limiting plate 27, and then rotating a cleaning brush roller 211 on the side where the two fixing rods 212 are close to each other, the upper surface of the cleaning plate 29 can be simply cleaned when the cleaning plate 29 slides out and retracts, preventing the cleaning plate 29 from getting stuck in the first groove 28 due to the accumulation of dust, thereby extending the service life of the cleaning plate 29.

[0062] While the electric actuator 25 pushes the push plate 26 to make the cleaning plate 29 work, it squeezes several first spring pieces 219 on one side of the push plate 26. After being squeezed, the spring pieces will deform upward, causing the fixing piece 220 fixed to the upper surface of the first spring piece 219 to also move upward. The fixing piece 220 is a thin elastic steel sheet. Then, it drives the piston rod 221 at the top of the fixing piece 220. The piston rod 221 drives the piston plate 222 fixed at its top, thus making piston movement in the spray box 223. This causes the water mist in the spray box 223 to be sprayed in the direction of the ash and slag sliding down, and the baffle 210 prevents the ash from falling onto the bottom plate 2, thereby achieving the effect of dust reduction inside the flue and preventing a large amount of dust from directly floating out of the flue inlet and polluting the environment.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A flue cleaning device, the device being placed inside a flue, the flue comprising a flue housing (1), characterized in that: The flue cleaning device includes a base plate (2), and protective shells (3) are provided on both sides of the base plate (2). A top column (21) is fixed to the upper surface of the base plate (2). Four cleaning components arranged in a circular array are fixed to the circumferential surface of the top column (21). Each cleaning component corresponds to the inner wall of the flue on each side. Each cleaning component includes a scraper (24) fixed to the circumferential surface of the top column (21). It also includes an electric actuator (25) fixed to the upper surface of the base plate (2); A push plate (26) is fixed to the output end of the electric actuator (25); A cleaning plate (29) is slidably disposed on the upper surface of the scraper (24), and an auxiliary plate (216) is disposed on the lower surface of the cleaning plate (29). The bottom end of the auxiliary plate (216) is provided with an inclined surface that is slidably connected to the push plate (26). The scraper (24) has two through grooves (213) on its surface. The cleaning plate (29) has a slider (214) fixedly attached to its lower surface. The slider (214) has a limit block (215) fixedly attached to its lower surface. The limit block (215) is fixedly connected to the auxiliary plate (216).

2. The flue cleaning device according to claim 1, characterized in that: A limiting plate (27) is fixed to the upper surface of the scraper (24). A first groove (28) is provided between the limiting plate (27) and the scraper (24). The cleaning plate (29) slides in the first groove (28). A screw (22) and a bolt (23) are provided on the circumferential surface of the top column (21) at the position corresponding to each scraper (24) for the scraper (24) to be detachable and replaceable.

3. The flue cleaning device according to claim 2, characterized in that: Two fixing rods (212) are fixed to one end of the limiting plate (27) that slides out near the cleaning plate (29). A cleaning brush roller (211) is rotatably provided on the side of the two fixing rods (212) that are close to each other. The circumferential surface of the cleaning brush roller (211) is provided with a number of plastic bristles for cleaning the cleaning plate (29).

4. The flue cleaning device according to claim 1, characterized in that: A dust-reducing component is also provided on one side of the push plate (26), the dust-reducing component including a plurality of first spring pieces (219) fixed to one side of the push plate (26). A baffle (210) is fixed to the upper surface of the base plate (2). Each cleaning component is provided with a baffle (210) on one side corresponding to the scraper (24). A fixing plate (217) is fixed to the side of the baffle (210) near the scraper (24), and the end of each of the first spring pieces (219) away from the push plate (26) is fixed to the fixing plate (217); A fixing plate (220) is fixed to the upper surface of the first spring (219), and a piston rod (221) is fixed to the upper surface of the fixing plate (220), and a piston plate (222) is fixed to the upper surface of the piston rod (221). And a spray box (223) fixed on the side of the fixed plate (217) near the push plate (26), wherein the piston rod (221) and the piston plate (222) make piston movement in the spray box (223), thereby causing the spray box (223) to spray water mist to reduce dust inside the flue being cleaned.

5. A flue cleaning device according to claim 4, characterized in that: A number of positioning blocks (218) are fixed to one side of the push plate (26). The number of positioning blocks (218) is the same as that of the first spring piece (219), and each spring piece is located below the first spring piece (219) so that the first spring piece (219) can only deform upward.

6. The flue cleaning device according to claim 1, characterized in that: The base plate (2) is provided with protective shells (3) on both sides. A first bevel gear (31) is provided inside the protective shell (3). One side of the first bevel gear (31) is fixedly connected to the output end of the motor in the base plate (2). The first bevel gear (31) meshes with two second bevel gears (32). A rotating shaft (38) is fixedly connected to one side of each second bevel gear (32). A rotating wheel (36) is fixedly connected to the end of the rotating shaft (38) away from the second bevel gear (32). A positioning frame (34) is provided on the base plate (2) at the position corresponding to the rotating wheel (36). A positioning groove (35) is opened in the positioning frame (34). The rotating wheel (36) is set in the positioning groove (35). The rotating shaft (38) passes through one side of the positioning frame (34) and is fixedly connected to the rotating wheel (36).

7. A flue cleaning device according to claim 6, characterized in that: Each of the rotating shafts (38) is rotatably connected to a fixed frame (33) at its center. One end of the fixed frame (33) is fixedly connected to the base plate (2), and the rotating shaft (38) rotates through the fixed frame (33).

8. A flue cleaning device according to claim 6, characterized in that: Each of the said impellers (36) has a rubber ring (37) fixed to its circumferential surface. The rubber ring (37) is used to increase the friction between the impeller (36) and the inner wall of the flue housing (1).

9. A flue cleaning device according to claim 1, characterized in that: The bottom plate (2) has a second groove (4) on its lower surface. A fan (41) is rotatably installed in the second groove (4). The fan (41) is fixedly connected to the motor output end in the bottom plate (2) to assist the cleaning device in moving upward.

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